CN107487296A - Electric automobile alarm based on CAN - Google Patents
Electric automobile alarm based on CAN Download PDFInfo
- Publication number
- CN107487296A CN107487296A CN201710760828.0A CN201710760828A CN107487296A CN 107487296 A CN107487296 A CN 107487296A CN 201710760828 A CN201710760828 A CN 201710760828A CN 107487296 A CN107487296 A CN 107487296A
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- Prior art keywords
- signal
- alarm
- electric automobile
- arm chips
- car
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/20—Means to switch the anti-theft system on or off
- B60R25/2009—Antitheft state indicator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/10—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles actuating a signalling device
- B60R25/1003—Alarm systems characterised by arm or disarm features
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/20—Means to switch the anti-theft system on or off
- B60R25/24—Means to switch the anti-theft system on or off using electronic identifiers containing a code not memorised by the user
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/30—Detection related to theft or to other events relevant to anti-theft systems
- B60R25/33—Detection related to theft or to other events relevant to anti-theft systems of global position, e.g. by providing GPS coordinates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R2325/00—Indexing scheme relating to vehicle anti-theft devices
- B60R2325/20—Communication devices for vehicle anti-theft devices
- B60R2325/205—Mobile phones
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R2325/00—Indexing scheme relating to vehicle anti-theft devices
- B60R2325/20—Communication devices for vehicle anti-theft devices
- B60R2325/207—Satellites
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Burglar Alarm Systems (AREA)
Abstract
A kind of electric automobile alarm based on CAN, is made up of upper shell, bottom plate, CAN socket, antenna and PCB, and invention describes basic structure, circuit and the operation principle of this electric automobile alarm；The alarm does not have power control device, and wiring is simple, volume very little, only mobile hard disk size；Band GPRS digital transmission modules and GPS module in described PCB, both the running route of stolen vehicle can have been tracked, the final berth of stolen vehicle has been determined, is positioned further through GPS module, information is automatically sent on the mobile phone of car owner by GPRS digital transmission modules, car owner can alarm；Particularly after electric automobile is normally parked, automobile is still forced open the door or leaped in through the window by illegal people's violence, on the one hand this alarm sends warning message to the mobile phone of car owner in time by GPRS digital transmission modules, the trouble and worry for solving the person of parking, and market prospects are very wide.
Description
Technical field
The present invention relates to a kind of electric automobile alarm based on CAN, it is mainly used in the electric automobile with CAN
Or the safe antitheft of the regular fuel automobile with CAN.
Background technology
New-energy electric vehicle must have CAN function, just be clearly required in the works early in national " 863 ",
Moreover, increasing fuel-engined vehicle all starts band CAN now, still, matched and electronic vapour based on CAN
Car alarm does not emerge slowly but.So far, traditional car alarm is still the most widely used anti-theft journal of automobile parking
Alarm device.Existing car alarm largely uses Control, with rolling code and encoding by code hopping technology, passes through wireless remote
Control enters without key gate inhibition's mode, realizes and automobile middle control door, boot, skylight, left and right turn signal, circuit are controlled, prevent car
It is stolen, this is typical primary vehicle alarm.Follow-on car alarm then uses " RSA " of so-called deformation public affairs
About AES, though it can resist most cryptographic attacks known so far, but its executing agency still uses relay
Device controls vehicle mounted electrical apparatus, and wiring is complicated, and safety precaution leak be present.It is a brand-new electronic using CAN design
Car alarm, the exactly present invention put forth effort the problem of to be solved.
The content of the invention
Accordingly, the embodiments of the invention provide a kind of structure of the electric automobile alarm based on CAN, circuit and its
Control method, its technical scheme are as follows：
A kind of electric automobile alarm based on CAN, by upper shell（1）, bottom plate（2）, CAN socket（3）, antenna
（4）And PCB（5）Composition, it is characterized by：
Described upper shell（1）Using engineering plastics material, upper shell（1）On be provided with CAN socket mounting hole（11）And day
String holes（12）, inner band mentions（13）And pillar（14）；
Described CAN socket（3）From upper shell（1）On CAN socket mounting hole（11）Place is stretched out, described antenna
（4）From antenna hole（12）Place is pico- to be stretched out；
Described CAN socket（3）For quad circuit plate socket, four cores are defined as：CAN-H、CAN-L、+12V、GND；
Described bottom plate（2）Using engineering plastics material, its edge carries and buckled（21）；
Described PCB（5）Installed in upper shell（1）The pillar of inner side（14）On, then by bottom plate（2）The extension of edge
Button（21）Insert upper shell（1）In and tangle upper shell（1）Mention inner side（13）, that is, complete installation, described PCB
（5）It is enclosed in upper shell（1）And bottom plate（2）In the space limited to；
Described PCB（5）On be welded with：CAN socket（3）, antenna with antenna pedestal（4）, core control part
ARM chips（51）, GPRS digital transmission modules（52）, GPS module（43）, 433MHz wireless receiving modules（54）, CAN receive
Send out interface chip（55）, CAN transceiving high speed photo-couplers（56）, insulating power supply module（57）, chip inductor（58）；
Described ARM chips（51）Encapsulated for LQFP64, built-in CAN2.0B agreements, CAN pins and CAN on its chip
Transceiver interface chip（55）Rear end be connected, CAN transceiver interface chip（55）Front end and transceiving high speed photo-coupler
（56）Rear end be connected, transceiving high speed photo-coupler（56）Front end and CAN socket（3）CAN-H, CAN-L pin phase
Even；
Described+12V, GND passes through chip inductor（58）Afterwards, with insulating power supply module（57）Input be connected, isolation electricity
Source module（57）+ 12V is converted into+the 5V and publicly of isolation（COM）Supply voltage, export to PCB（5）Power supply；
Described antenna（4）For shallow buried structures, coupled antenna pedestal and GPRS digital transmission modules（52）It is connected, GPRS numbers pass
Module（52）Output and ARM chips（51）External interrupt pin be connected；
Described GPS module（53）With ARM chips（51）I/O pins be connected；
Described 433MHz wireless receiving modules（54）Output signal send ARM chips（51）Serial pin；
Matched four core CAN plugs insertion CAN socket（3）In.
The described electric automobile alarm based on CAN, mode of operation have five kinds, and its implementation is as follows：
Pattern 1：Unlock,
Step is that car owner presses unlocking key, 433MHz wireless receiving modules（54）After receiving the signal, through ARM chips（51）Will
The signal is decoded, and the message data of 13 bytes of frame of order of unlocking is loaded onto into CAN, notifies the control in CAN
The node module of left and right turn signal processed and loudspeaker sends secondary acousto-optic prompting, and power supply node module will turn on electrical source of power,
Centrally controrlled locking system control node module opens door lock, and electric automobile enters preparation state；
Pattern 2：Locking,
Step is automobile flameout, and car owner has shut car door, then presses blocking wedge, 433MHz wireless receiving modules（54）Receiving should
After signal, through ARM chips（51）The signal is decoded, while door contact interrupter information is obtained from CAN, confirms that car door has closed
It is good, while the message data of 13 bytes of frame of locking order is loaded onto CAN, notify that the control in CAN is left
The node module of right turn lamp and loudspeaker sends an acousto-optic hint, and power supply node module will close electrical source of power, middle control
Door lock control node module closes door lock, and electric automobile, which enters, guards against state on duty；
Pattern 3：Gate inhibition,
Step is automobile flameout, and car owner does not shut car door, then presses blocking wedge, 433MHz wireless receiving modules（54）Receiving should
After signal, through ARM chips（51）The signal is decoded, while door contact interrupter information is obtained from CAN, confirms that car door does not close
It is good, while the message data of 13 bytes of frame of gate inhibition's order is loaded onto CAN, notify that the control in CAN is left
The node module of right turn lamp and loudspeaker sends five acousto-optic hints, and power supply node module closes electrical source of power, electronic vapour
Car, which enters, guards against state on duty, but door lock is not off, ARM chips（51）Notify GPRS digital transmission modules（52）" car door is not for transmission
Shut " prompt message to the mobile phone of car owner on；
Pattern 4：Alarm,
Step is, if 433MHz wireless receiving modules（54）A succession of disagreeableness scanning signal is received, through ARM chips
（51）The signal is decoded and confirms illegally, the message data of 13 bytes of frame of alarm command to be loaded onto into CAN, is led to
Know that the node module of the control left and right turn signal in CAN and loudspeaker sends 30 sound and light alarm promptings, ARM chips（51）Will
Local self-locking 10 minutes, does not receive any remote signal, but presses unlocking key or mute key and can cancel sound and light alarm immediately；
Pattern 5：Seek car,
Step is to press the blocking wedge on remote control, 433MHz wireless receiving modules（54）After receiving the signal, through ARM chips
（51）The signal is decoded, while the message data of 13 bytes of frame for seeking car order of acousto-optic is loaded onto CAN, is led to
Four acousto-optic hints will be sent by knowing the node module of the control left and right turn signal in CAN and loudspeaker, if first pressed Jing Yin
Key, then blocking wedge is pressed, the left and right turn signal and loudspeaker node module in CAN only only send four light flash and carried
Show.
Further, when electric automobile temporary parking, carwash or after park it is non-latching due to car owner's carelessness, stolen by people
Walk, GPS module（53）The running route and the final berth information of stolen vehicle that stolen vehicle will be automatically positioned, these information
Pass through GPRS digital transmission modules again（52）On be sent on the mobile phone of car owner.
Further, after automobile parking and normal locking, drive away if window is forced open the door or broken to automobile by people's strength, it is right
In illegal invader, ARM chips（51）GPRS digital transmission modules will be passed through（52）Send and report to car owner's mobile phone or locality 110 respectively
Alert information.
Technique effect
Electric automobile alarm proposed by the present invention based on CAN has the advantages that：
The present invention is a car alarm for being different from traditional line traffic control pattern, whole alarm neither one power controller
Part, volume only have mobile hard disk size, using CAN, are only the installation for completing alarm with four lines, are truly realized
System most saves, total optimization.Therefore, the invention can be not only used for electric automobile or pilotless automobile with CAN, can use again
In the regular fuel automobile with CAN.
The present invention carries GPRS digital transmission modules and GPS module, if because car owner neglects non-latching, quilt after automobile parking
After the automobilism route and the final berth information of stolen vehicle that pirate of the open is walked will be positioned by GPS module, car is sent to
On main mobile phone, car owner can whereby alarm, to obtain the help of the police.
If the locking after automobile parking, automobile is still forced open the door or leaped in through the window by illegal people's strength, this alarm one
Aspect sends warning message by GPRS digital transmission modules to the mobile phone of car owner, on the other hand will be alarmed to locality 110.In a word, originally
Invention solves the trouble and worry that car owner parks.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to institute in embodiment
The accompanying drawing needed to use is briefly described, it is therefore apparent that and drawings in the following description are only some embodiments of the present invention,
For those of ordinary skill in the art, on the premise of not paying creative work, can also be obtained according to these accompanying drawings
Other accompanying drawings.
Electric automobile alarm profile views of the Fig. 1 based on CAN；
Electric automobile alarm explosive views one of the Fig. 2 based on CAN；
Electric automobile alarm explosive views two of the Fig. 3 based on CAN；
Electric automobile alarm explosive views three of the Fig. 4 based on CAN；
Electric automobile alarm explosive views four of the Fig. 5 based on CAN；
Fig. 6 PCBs profile view one；
Fig. 7 PCBs profile view two；
Fig. 8 PCB front views.
Label declaration：
1 upper shell
11 CAN socket mounting holes
12 antenna holes
13 mention
14 pillars
2 bottom plates
21 buckle
3 CAN sockets
4 antennas
5 PCBs
51 ARM chips
52 GPRS digital transmission modules
53 GPS modules
54 433MHz wireless receiving modules
55 CAN transceiver interface chips
56 transceiving high speed photo-couplers
57 insulating power supply modules
58 chip inductors
Embodiment
In order that the engineers and technicians of the art more fully understand technical scheme, below in conjunction with the accompanying drawings
The present invention is described in further detail with specific embodiment.Obviously, the implementation described by the accompanying drawing in the embodiment of the present invention
Example only part of the embodiment of the present invention, rather than whole embodiments.It is common based on the embodiment in the present invention, this area
The every other embodiment that technical staff is obtained under the premise of creative work is not made, belong to the model that the present invention protects
Enclose.
A kind of electric automobile alarm based on CAN, by upper shell（1）, bottom plate（2）, CAN socket（3）, day
Line（4）And PCB（5）Composition, it is characterized by：
Described upper shell（1）Using engineering plastics material, upper shell（1）On be provided with CAN socket mounting hole（11）And day
String holes（12）, inner band mentions（13）And pillar（14）；
Described CAN socket（3）From upper shell（1）On CAN socket mounting hole（11）Place is stretched out, described antenna
（4）From antenna hole（12）Place is pico- to be stretched out；
Described CAN socket（3）For quad circuit plate socket, four cores are defined as：CAN-H、CAN-L、+12V、GND；
Described bottom plate（2）Using engineering plastics material, its edge carries and buckled（21）；
Described PCB（5）Installed in upper shell（1）The pillar of inner side（14）On, then by bottom plate（2）The extension of edge
Button（21）Insert upper shell（1）In and tangle upper shell（1）Mention inner side（13）, that is, complete installation, described PCB
（5）It is enclosed in upper shell（1）And bottom plate（2）In the space limited to；
Described PCB（5）On be welded with：CAN socket（3）, antenna with antenna pedestal（4）, core control part
ARM chips（51）, GPRS digital transmission modules（52）, GPS module（43）, 433MHz wireless receiving modules（54）, CAN receive
Send out interface chip（55）, CAN transceiving high speed photo-couplers（56）, insulating power supply module（57）, chip inductor（58）；
Described ARM chips（51）Encapsulated for LQFP64, built-in CAN2.0B agreements, CAN pins and CAN on its chip
Transceiver interface chip（55）Rear end be connected, CAN transceiver interface chip（55）Front end and transceiving high speed photo-coupler
（56）Rear end be connected, transceiving high speed photo-coupler（56）Front end and CAN socket（3）CAN-H, CAN-L pin phase
Even；
Described+12V, GND passes through chip inductor（58）Afterwards, with insulating power supply module（57）Input be connected, isolation electricity
Source module（57）+ 12V is converted into+the 5V and publicly of isolation（COM）Supply voltage, export to PCB（5）Power supply；
Described antenna（4）For shallow buried structures, coupled antenna pedestal and GPRS digital transmission modules（52）It is connected, GPRS numbers pass
Module（52）Output and ARM chips（51）External interrupt pin be connected；
Described GPS module（53）With ARM chips（51）I/O pins be connected；
Described 433MHz wireless receiving modules（54）Output signal send ARM chips（51）Serial pin；
Matched four core CAN plugs insertion CAN socket（3）In.
The described electric automobile alarm based on CAN, mode of operation have five kinds, and its implementation is as follows：
Pattern 1：Unlock,
Step is that car owner presses unlocking key, 433MHz wireless receiving modules（54）After receiving the signal, through ARM chips（51）Will
The signal is decoded, and the message data of 13 bytes of frame of order of unlocking is loaded onto into CAN, notifies the control in CAN
The node module of left and right turn signal processed and loudspeaker sends secondary acousto-optic prompting, and power supply node module will turn on electrical source of power,
Centrally controrlled locking system control node module opens door lock, and electric automobile enters preparation state；
Pattern 2：Locking,
Step is automobile flameout, and car owner has shut car door, then presses blocking wedge, 433MHz wireless receiving modules（54）Receiving should
After signal, through ARM chips（51）The signal is decoded, while door contact interrupter information is obtained from CAN, confirms that car door has closed
It is good, while the message data of 13 bytes of frame of locking order is loaded onto CAN, notify that the control in CAN is left
The node module of right turn lamp and loudspeaker sends an acousto-optic hint, and power supply node module will close electrical source of power, middle control
Door lock control node module closes door lock, and electric automobile, which enters, guards against state on duty；
Pattern 3：Gate inhibition,
Step is automobile flameout, and car owner does not shut car door, then presses blocking wedge, 433MHz wireless receiving modules（54）Receiving should
After signal, through ARM chips（51）The signal is decoded, while door contact interrupter information is obtained from CAN, confirms that car door does not close
It is good, while the message data of 13 bytes of frame of gate inhibition's order is loaded onto CAN, notify that the control in CAN is left
The node module of right turn lamp and loudspeaker sends five acousto-optic hints, and power supply node module closes electrical source of power, electronic vapour
Car, which enters, guards against state on duty, but door lock is not off, ARM chips（51）Notify GPRS digital transmission modules（52）" car door is not for transmission
Shut " prompt message to the mobile phone of car owner on；
Pattern 4：Alarm,
Step is, if 433MHz wireless receiving modules（54）A succession of disagreeableness scanning signal is received, through ARM chips
（51）The signal is decoded and confirms illegally, the message data of 13 bytes of frame of alarm command to be loaded onto into CAN, is led to
Know that the node module of the control left and right turn signal in CAN and loudspeaker sends 30 sound and light alarm promptings, ARM chips（51）Will
Local self-locking 10 minutes, does not receive any remote signal, but presses unlocking key or mute key and can cancel sound and light alarm immediately；
Pattern 5：Seek car,
Step is only to press the blocking wedge on remote control, 433MHz wireless receiving modules（54）After receiving the signal, through ARM cores
Piece（51）The signal is decoded, while the message data of 13 bytes of frame for seeking car order of acousto-optic is loaded onto CAN,
The node module of control left and right turn signal and loudspeaker in notice CAN will send four acousto-optic hints；If first press quiet
Key, then blocking wedge is pressed, the left and right turn signal and loudspeaker node module in CAN only only send four light flash and carried
Show.
Further, when electric automobile temporary parking, carwash or after park it is non-latching due to car owner's carelessness, stolen by people
Walk, GPS module（53）The running route and the final berth information of stolen vehicle that stolen vehicle will be automatically positioned, these information
Pass through GPRS digital transmission modules again（52）On be sent on the mobile phone of car owner.
Further, after automobile parking and normal locking, drive away if window is forced open the door or broken to automobile by people's strength, it is right
In illegal invader, ARM chips（51）GPRS digital transmission modules will be passed through（52）Send and report to car owner's mobile phone or locality 110 respectively
Alert information.
It should be noted that the electric automobile alarm based on CAN, underlying protocol follow CAN2.0B, use
Twisted-pair communication, speed is up to 1Mbps/40 m, and the transmission of information is in the form of data block is packed, in units of frame, each frame
Effective word joint number be altogether 13, wherein preceding 5 bytes be TX information frames, rear 8 bytes be data frame, and often frame information is with CRC
Verification, between bus node can mutual point-to-point communication, or broadcast communication, and using clock is synchronous and data bit filling insertion is protected
Demonstrate,prove synchronism during each node communication.
The described electric automobile alarm based on CAN, ARM chips（51）The network management software use based on ground
Location, order, parameter and multi-master competition bus arbitration mode communications protocol, the basic ideas that it is designed are as follows, first ARM cores
Piece（51）In CAN module sending and receiving according to CAN2.0B bus protocol control data frames, CAN transceiver interface core
Piece（55）With CAN transceiving high speed photo-couplers（56）Connection with other CAN node devices, ARM chips are provided（51）Pass through number
According to all registers of/address multiplex bus and Read-write Catrol logical access；Transmission buffering area can store a frame and completely report
Text, when sending message, ARM chips（51）Interface management logic manipulation CAN module send buffering area in message be sent to CAN
In bus；When receiving a message, the serial bitstream data in bus is changed bit parallel data by CAN module first, then
Give and receive filtering module and be identified, whether the message for determining to receive is message classification required by agreement, all receptions
Message can be stored in reception fifo queue.
After network node learns that a packet reaches, it can select to receive or abandon.This selection course make use of CAN
Acceptance filtenng function realize, in the LLC of data link layer（Logic link control）Sublayer realizes the selection of packet.Only
Meeting the packet of certain condition can just be received by the node, and other packets are abandoned in bottom, as long as therefore sending
Node is that packet sets correct identifier, you can sends it to the one or more nodes specified.It is specific to receive filtering
Operating process is as follows, ARM chips（51）CAN module inside indicating receives shielding deposit by receiving code registers and one
Device supports the filtering to message, and unconcerned message kept outside of the door, and be made whether the judgement received；The order received
Or data are then neatly acted upon by execution module according to the different priorities of message and command type.
Node is the key concept of CAN, the different node control hardware moulds on the electric automobile based on CAN
Block, typically classify according to the function and the purpose of control that use, and according to the installation before, during and after automobile, left and right
Position is assembled successively, has fully demonstrated the principle of control and Classification Management nearby, and the present invention takes full advantage of the node control of correlation
Molding block, makes it make the best use of everything.
In a word, it is it is characteristic of the invention that extremely succinct, and volume accomplishes very little, very thin, only mobile hard disk size, it is thick
Spend for 19 millimeters, be easy to in-car hide to install.Make us unimaginably queer, this electric automobile alarm is both without any power
Control device, and wiring also very simple, only according to a socket band two to twisted pair conductors（Four lines）Complete electric automobile
Alarm task, given full play to the advantage of CAN, the system that has been truly realized most saves, total optimization；GPRS built in it
Digital transmission module and GPS module, the running route of stolen vehicle can be both tracked, can finally determine the berth of stolen vehicle again
Point, after being positioned by GPS module, its information will be automatically sent on the mobile phone of car owner by GPRS digital transmission modules, and car owner is whereby
Alarm, to obtain the help of the police.Particularly after automobile is normally parked, automobile still force open the door or break window by illegal people's strength and
Enter, on the one hand this alarm sends warning message to the mobile phone of car owner in time by GPRS digital transmission modules, while reported to locality 110
It is alert, really solve the trouble and worry that car owner parks.
The present invention is described in detail above in association with specific embodiment, these not form the limit to the present invention
System.Without departing from the principles of the present invention, those skilled in the art can also make many modification and improvement, these
Protection scope of the present invention should be belonged to.
Claims (4)
- A kind of 1. electric automobile alarm based on CAN, by upper shell（1）, bottom plate（2）, CAN socket（3）, antenna （4）And PCB（5）Composition, it is characterised in that：Described upper shell（1）Using engineering plastics material, upper shell（1）On be provided with CAN socket mounting hole（11）And day String holes（12）, inner band mentions（13）And pillar（14）；Described CAN socket（3）From upper shell（1）On CAN socket mounting hole（11）Place is stretched out, described antenna （4）From antenna hole（12）Place is pico- to be stretched out；Described CAN socket（3）For quad circuit plate socket, four cores are defined as：CAN-H、CAN-L、+12V、GND；Described bottom plate（2）Using engineering plastics material, its edge carries and buckled（21）；Described PCB（5）Installed in upper shell（1）The pillar of inner side（14）On, then by bottom plate（2）The extension of edge Button（21）Insert upper shell（1）In and tangle upper shell（1）Mention inner side（13）, that is, complete installation, described PCB （5）It is enclosed in upper shell（1）And bottom plate（2）In the space limited to；Described PCB（5）On be welded with：CAN socket（3）, antenna with antenna pedestal（4）, core control part ARM chips（51）, GPRS digital transmission modules（52）, GPS module（43）, 433MHz wireless receiving modules（54）, CAN receive Send out interface chip（55）, CAN transceiving high speed photo-couplers（56）, insulating power supply module（57）, chip inductor（58）；Described ARM chips（51）Encapsulated for LQFP64, built-in CAN2.0B agreements, CAN pins and CAN on its chip Transceiver interface chip（55）Rear end be connected, CAN transceiver interface chip（55）Front end and transceiving high speed photo-coupler （56）Rear end be connected, transceiving high speed photo-coupler（56）Front end and CAN socket（3）CAN-H, CAN-L pin phase Even；Described+12V, GND passes through chip inductor（58）Afterwards, with insulating power supply module（57）Input be connected, isolation electricity Source module（57）+ 12V is converted into+the 5V and publicly of isolation（COM）Supply voltage, export to PCB（5）Power supply；Described antenna（4）For shallow buried structures, coupled antenna pedestal and GPRS digital transmission modules（52）It is connected, GPRS numbers pass Module（52）Output and ARM chips（51）External interrupt pin be connected；Described GPS module（53）With ARM chips（51）I/O pins be connected；Described 433MHz wireless receiving modules（54）Output signal send ARM chips（51）Serial pin；Matched vehicle-mounted four cores CAN plug insertion CAN socket（3）In.
- 2. the electric automobile alarm according to claim 1 based on CAN, it is characterised in that mode of operation has five Kind, implementation method is as follows：Pattern 1：Unlock,Step is that car owner presses unlocking key, 433MHz wireless receiving modules（54）After receiving the signal, through ARM chips（51）Will The signal is decoded, and the message data of 13 bytes of frame of order of unlocking is loaded onto into CAN, notifies the control in CAN The node module of left and right turn signal processed and loudspeaker sends secondary acousto-optic prompting, and power supply node module connects electrical source of power, in Control door lock control node module and open door lock, electric automobile enters preparation state；Pattern 2：Locking,Step is automobile flameout, and car owner has shut car door, then presses blocking wedge, 433MHz wireless receiving modules（54）Receiving should After signal, through ARM chips（51）The signal is decoded, while door contact interrupter information is obtained from CAN, confirms that car door has closed It is good, while the message data of 13 bytes of frame of locking order is loaded onto CAN, notify that the control in CAN is left The node module of right turn lamp and loudspeaker sends an acousto-optic hint, and power supply node module closes electrical source of power, central control gate Lock control node module closes door lock, and electric automobile, which enters, guards against state on duty；Pattern 3：Gate inhibition,Step is automobile flameout, and car owner does not shut car door, then presses blocking wedge, 433MHz wireless receiving modules（54）Receiving should After signal, through ARM chips（51）The signal is decoded, while door contact interrupter information is obtained from CAN, confirms that car door does not close It is good, while the message data of 13 bytes of frame of gate inhibition's order is loaded onto CAN, notify that the control in CAN is left The node module of right turn lamp and loudspeaker sends five acousto-optic hints, and power supply node module closes electrical source of power, electronic vapour Car, which enters, guards against state on duty, but door lock is not off, ARM chips（51）Notify GPRS digital transmission modules（52）" car door is not for transmission Shut " prompt message to the mobile phone of car owner on；Pattern 4：Alarm,Step is, if 433MHz wireless receiving modules（54）A succession of disagreeableness scanning signal is received, through ARM chips （51）The signal is decoded and confirms illegally, the message data of 13 bytes of frame of alarm command to be loaded onto into CAN, is led to Know that the node module of the control left and right turn signal in CAN and loudspeaker sends 30 sound and light alarm promptings, ARM chips（51）Will Local self-locking 10 minutes, does not receive any remote signal, but presses unlocking key or mute key and can cancel sound and light alarm immediately；Pattern 5：Seek car,Step is to press the blocking wedge on remote control, 433MHz wireless receiving modules（54）After receiving the signal, through ARM chips （51）The signal is decoded, while the message data of 13 bytes of frame for seeking car order of acousto-optic is loaded onto CAN, is led to Four acousto-optic hints will be sent by knowing the node module of the control left and right turn signal in CAN and loudspeaker, if first pressed Jing Yin Key, then blocking wedge is pressed, the left and right turn signal and loudspeaker node module in CAN only only send four light flash and carried Show.
- 3. the electric automobile alarm according to claim 1 or 2 based on CAN, it is characterised in that work as electric automobile Temporary parking, carwash or after parking it is non-latching due to car owner's carelessness, stolen by people, GPS module（53）It will be automatically positioned stolen The running route of automobile and the final berth information of stolen vehicle, these information pass through GPRS digital transmission modules again（52）Upper transmission Onto the mobile phone of car owner.
- 4. the electric automobile alarm according to claim 1 or 2 based on CAN, it is characterised in that：Work as automobile parking Afterwards and normal locking, drive away if window is forced open the door or broken to automobile by people's strength, for illegal invader, ARM chips（51）Will Pass through GPRS digital transmission modules（52）Respectively warning message is sent to car owner's mobile phone or locality 110.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710760828.0A CN107487296A (en) | 2017-08-30 | 2017-08-30 | Electric automobile alarm based on CAN |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710760828.0A CN107487296A (en) | 2017-08-30 | 2017-08-30 | Electric automobile alarm based on CAN |
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| Publication Number | Publication Date |
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| CN107487296A true CN107487296A (en) | 2017-12-19 |
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| CN201710760828.0A Withdrawn CN107487296A (en) | 2017-08-30 | 2017-08-30 | Electric automobile alarm based on CAN |
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