CN108123860A - The ID of intelligent domestic system node device based on CAN bus is distributed automatically and management method - Google Patents
The ID of intelligent domestic system node device based on CAN bus is distributed automatically and management method Download PDFInfo
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- CN108123860A CN108123860A CN201710039042.XA CN201710039042A CN108123860A CN 108123860 A CN108123860 A CN 108123860A CN 201710039042 A CN201710039042 A CN 201710039042A CN 108123860 A CN108123860 A CN 108123860A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/2803—Home automation networks
- H04L12/2807—Exchanging configuration information on appliance services in a home automation network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/2803—Home automation networks
- H04L12/283—Processing of data at an internetworking point of a home automation network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/06—Notations for structuring of protocol data, e.g. abstract syntax notation one [ASN.1]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
- H04L2012/40215—Controller Area Network CAN
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2101/00—Indexing scheme associated with group H04L61/00
- H04L2101/60—Types of network addresses
- H04L2101/618—Details of network addresses
- H04L2101/622—Layer-2 addresses, e.g. medium access control [MAC] addresses
Abstract
ID the invention discloses the intelligent domestic system node device based on CAN bus is distributed automatically and management method, system interior joint equipment uses STM32f103 as MCU, using CAN bus CAN 2.0B agreements, using the mode of extension in CAN2.0B agreements, transmission is that data are auspicious；Extended ID is 29 in CAN2.0B agreements, using wherein no less than 4 device ids as node device, device type marker code of the high position of no less than two as product in the device id of no less than 4, it is device id low level that high-order portion is removed in device id, and device id low level is specific equipment ID number number in same category of device.In system operation, intelligent gateway mass-sends the inspection for sending heartbeat bag data and carrying out equipment on-line state according to device type.The designing scheme of present invention distribution ID, the ID of system interior joint equipment are disposably assigned, and accuracy rate is high, at PC ends software are set to be manually operated without user.
Description
Technical field
The present invention relates to field of intelligent control technology, more particularly to a kind of intelligent domestic system section based on CAN bus
The ID of point device is distributed automatically and management method.
Background technology
In recent years, smart home industry development is rapid, is broadly divided into two major class of bus product and wireless product.Bus product
Data mostly are transmitted using modes such as KNX, 485, CAN, the intelligent domestic system node device ID of part of the manufacturer's production is using solid
Determine ID forms（When dispatching from the factory ID values are fixed for equipment burning）, will be in system after node device is accessed in intelligent domestic system
The ID values of each equipment be manually entered in system（PC ends set software）, various configuration works are then done again, in this way
It by the ID value input systems of all devices, heavy workload, and easily malfunctions, maintenance difficulties are higher in system operation.Also
There is part of the manufacturer by the way of distributing automatically, but need repeated dispensing that could all distribute all node devices in system
Although ID addresses, this mode are but the schemes and not perfect based on the design concept distributed automatically, error rate it is high, it is necessary into
The work of row repeated dispensing just can be by all devices in system all into distribution of work ID, and entire ID assigning process is less efficient, need
Professional is wanted to be debugged.
The content of the invention
To solve the above problems, the ID the present invention provides the intelligent domestic system node device based on CAN bus is automatic
Distribution and management method.
The technical solution adopted in the present invention is：The ID of intelligent domestic system node device based on CAN bus divides automatically
Method of completing the square, system interior joint equipment use STM32f103 as MCU, using CAN bus CAN 2.0B agreements, use CAN2.0B
Mode of extension in agreement, transmission is that data are auspicious；Extended ID is 29 in CAN2.0B agreements, using wherein no less than 4
As the device id of node device, device type of the high position of no less than two as product being no less than in the device id of 4
Marker code, it is device id low level that high-order portion is removed in device id, and device id low level is specific equipment in same category of device
ID number is numbered；Unique not modifiable 96 bit sequence number of every chip internal of STM32f103 all one, by 96 unique sequences
Number as seed, a high position for the random number is filled by the random number of the no less than lower bit number of device id of generation one
The low level of random number is filled into CAN2.0B agreements in Extended ID 29 by the low level of device id, low from 0 to random number
Position digit is sequentially filled；Each node device generates a MAC value according to the unique sequence numbers of 96 in MCU, as each section
The independent MAC value of point, the MAC value of each equipment are different from；The automatic allocation steps of ID of node device are as follows：
S-1：Intelligent gateway, which is sent, allows in system bus all node devices to postback device id instruction, and all nodes are set in system
The standby ID for sending respective node device successively according to device type,
S-2:Intelligent gateway is received in system after the ID of all node devices, according to device type by all node devices
ID values and the MAC value of equipment are saved in the information table of intelligent gateway,
S-3:Whether intelligent gateway parses node device ID and equipment MAC value in intelligent gateway successively according to node device type
Existing in information table, intelligent gateway first handles the ID and MAC value of node device,
If illustrate the node device the allocated ID, and and intelligence there are the ID and MAC value of node device in intelligent gateway information table
It can preserve in gateway (100) information table consistent, intelligent gateway sends instructions to node device, which exits ID points
With process, step S-10 is performed;
If there is no the ID of the node device and MAC value or the matching of ID values inconsistent in intelligent gateway information table, step S- is performed
4;
S-4:Intelligent gateway, which is sent, allows node device request ID to instruct,
S-5：Id command is asked in transmission of attending the meeting after node device reception instruction,
S-6：Intelligent gateway can be that the node device distributes an ID value,
S-7：After the node device receives the ID of intelligent gateway distribution, the MAC value of ID and the node device is postbacked to intelligent network
Put capable confirmation into,
S-8:If intelligent gateway confirmation is errorless, S-9 is performed, if intelligent gateway parses the node device and postbacks ID and intelligent gateway
When distribution ID is inconsistent, then S-4 is performed, intelligent gateway performs ID assigning process from new again, until being allocated successfully, if intelligent gateway
Middle preservation ID values are full, can not continue to distribute ID values, then perform S-12,
S-9：Confirmation message is sent to the node device, after node device receives confirmation message, ID values are saved in the node
In equipment FL100SH,
S-10:Next similar node device, implementation procedure weight are completed and then handled as procedure described above to one node device
The step of multiple S-3 to S-9,
S-11:After all node devices are disposed, the automatic assigning process of ID of node device is exited,
S-12:ID can not be applied for by sending command prompt node device.
Further, Extended ID is 29 in CAN2.0B agreements, using wherein 10 device ids as node device,
Using the 16-25 positions in Extended ID in CAN2.0B agreements 29, device type marks of the Gao Siwei as product in 10 ID
Remember code, low six are specific equipment ID number in same category of device.
Further, unique not modifiable 96 bit sequence number of every chip internal of STM32f103 all one, by 96 only
One sequence number generates 12 random numbers, 10 ID is filled by high six of 12 random numbers as seed
Low six, the 0-5 positions for being filled into 29 Bits Expanding ID by low six of 12 random numbers；
Each node device generates the MAC value of eight bytes according to the unique sequence numbers of 96 in MCU, only as each node
Vertical MAC value.
Further, in system operation, intelligent gateway is mass-sended according to device type sends the progress of heartbeat bag data
The inspection of equipment on-line state, if hair existing equipment does not postback heartbeat packet retrieval data, intelligent gateway transmission allows the equipment
Reset instruction, then heartbeat bag data is sent to the equipment again, if the equipment postbacks data, which is online,
If the equipment does not postback heartbeat bag data, illustrate the equipment off-line, device hardware failure, intelligent gateway is by the ID of the equipment
Labeled as off-line mode, in the same category of device more renewed, directly the ID is assigned in new equipment, deletes the MAC of original equipment
Value.
The beneficial effects of the invention are as follows：1, the ID of system equipment is using automatic mode, and same category of device burning is same when dispatching from the factory
The program of sample convenient for batch production, solves and fixes ID for product burning, burning program process is complicated, the multi-job brought
Link and the mistake generated at work.2, optimize the designing scheme of automatic distribution ID, the ID of system interior joint equipment is disposable
It is assigned, accuracy rate is high, at PC ends software is set to be manually operated without user.3, after system configuration completion, to system
All devices ID in bus is managed, when product is replaced without redistributing new ID, directly by used equipment
ID is updated into new equipment.4, detecting system bus, is arranged to off-line state by the ID of the total off-line device of system, is not involved at any time
System communication processes improve system stability.
Description of the drawings
Fig. 1 is connected to part smart home node device structure diagram for the present invention's.
Fig. 2 is that intelligent gateway of the present invention is node device distribution ID procedure charts.
Fig. 3 is that intelligent gateway of the present invention is 1 detailed annotation figure of node device distribution ID process steps.
Specific embodiment
In order to be more clearly understood that technical scheme, the present invention is further described below in conjunction with the accompanying drawings.
As shown in Figure 1, part smart home node device is connected in figure as schematic diagram, PC ends and intelligent gateway 100
It is connected with cable 1, intelligent gateway 100 is accessed in internet, by CAN bus 200 by 485 protocol conversion module of node device
（2001、2002、2003）, 86 formula intelligent sockets (3001,3002,3003), Multifunction infrared transponder (4001,4002), valve
Door controller (5001,5002), 4.3 cun of Multifunctional liquid crystal control panels 6001, power supply insert 7001 etc. series connection access buses.Electricity
Dynamic curtain motor 8001 is connected to by 485 signal wires 2 in 485 protocol modules 2001, and electrically operated valve 9001 is connected by signal wire 3
It is connected in valve positioner 5001, this sample intelligent domestic system controls curtain motor, electrically operated valve.By required institute
After having node device access intelligent domestic system, then need for the respective independent ID of node device distribution in all buses, work
For the device address of each node device, the different types of equipment of different zones can be accurately identified for intelligent gateway, is completed
The input and output of various data and sensor information acquisition etc., the final function of realizing that intelligent domestic system is all, ensure system
It unites stable.The ID of intelligent domestic system node device based on CAN bus is distributed automatically and management method, as follows：
The ID of intelligent domestic system node device based on CAN bus is distributed automatically and management method, smart home in the present invention
System interior joint equipment uses STM32f103 as MCU, using CAN bus CAN 2.0B agreements, using in CAN2.0B agreements
Mode of extension, transmission is that data are auspicious.
Extended ID is 29 in CAN2.0B agreements, and embodiment uses wherein 10（16-25）As setting for node device
Standby ID.Divide product type more in intelligent domestic system, therefore use device types of the Gao Siwei as product in 10 ID,
For distinguishing different product types（Lamp controller, intelligent socket, 485 protocol conversion modules in such as Fig. 1）, low six
For specific equipment ID number in same category of device.
Unique not modifiable 96 bit sequence number of every chip internal of STM32f103 all one, the present invention in by this 96
Unique sequence number is as seed, and the random number of generation one 12, when intelligent gateway distributes ID for node device, node is set
It is standby if factory reset in the case of, can be by high six of 12 random numbers be filled into 10 ID low six, by 12
The 0-5 positions that low six of random number are filled into 29 Bits Expanding ID so ensure that the acquiescence of all node devices in system
ID values are different from, and can be utilized the arbitration mechanism competition bus sending device request ID instructions successively of bus, will not be caused total
Line mistake.
Each node device generates the MAC value of eight bytes according to the unique sequence numbers of 96 in MCU, as each section
The independent MAC value of point（The MAC value of each equipment is different from）.
It is allowed as shown in Fig. 2, intelligent gateway (100) is sent in system bus after all node devices postback device id instruction
（1 step in Fig. 2）, all node devices send the ID of respective node device according to the priority of device type in system
（2 step in Fig. 2）, intelligent gateway 100 received in system after the ID of all node devices, will be all according to device type
The ID values of node device are saved in the MAC value of equipment in the information table of intelligent gateway 100.
As shown in figure 3, intelligent gateway 100 parses node device ID and equipment MAC value successively according to node device type
Whether exist in 100 information table of intelligent gateway, intelligent gateway 100 first handles the ID and MAC value of node device 2001, if intelligence
There are the ID and MAC value of the node device 2001 in 100 information table of gateway, illustrate the node device 2001 the allocated ID, and
Consistent with being preserved in 100 information table of intelligent gateway, intelligent gateway 100 sends instructions to node device 2001（Such as Fig. 31）Step
Suddenly）, which exits ID assigning process.If there is no the ID of the node device 2001 in 100 information table of intelligent gateway
Inconsistent with MAC value or the matching of ID values, then intelligent gateway 100, which is sent, allows node device 2001 to ask ID instructions（Such as Fig. 32）Step
Suddenly）, transmission request id command of attending the meeting after the reception instruction of node device 2001（Such as Fig. 33）Step）, intelligent gateway 100 can be should
Node device 2001 distributes an ID value（Such as Fig. 34）Step）, the node device 2001 receive intelligent gateway 100 distribution
After ID, the MAC value for postbacking ID and the node device 2001 is confirmed to intelligent gateway 100（Such as Fig. 35）Step）, intelligent network
After 100 confirmation of pass is errorless, the node device 2001 is given to send confirmation message（Such as Fig. 36）Step）, which receives
To after confirmation message, ID values are saved in node device 2001FL100SH, if intelligent gateway 100 parses node device
2001 postback ID (such as Fig. 35）Data in step) and intelligent gateway 100 distribute ID it is inconsistent when, intelligent gateway 100 is to the section
Point device 2001, which sends instruction, allows the node device 2001 to apply for that ID is instructed again（Such as Fig. 37）Step）, 2001 weight of node device
New to perform in Fig. 3 3) step, intelligent gateway 100 performs ID assigning process from new again, until being allocated successfully, if intelligent gateway 100
Middle preservation ID values are full, can not continue to distribute ID values, then ID can not be applied for by sending command prompt node device（Such as Fig. 38）Step）.
Next similar node device 2002 is completed and then handled as procedure described above to one node device 2001, directly
It is completed to the processing of same category of device ID processes.Other class node devices are handled successively according to the method described above.
In system operation, intelligent gateway is mass-sended according to device type sends heartbeat bag data progress equipment on-line shape
The inspection of state, if hair existing equipment does not postback heartbeat packet retrieval data, intelligent gateway transmission allows the device reset to instruct, then
Again heartbeat bag data is sent to the equipment, if the equipment postbacks data, which is online, if the equipment does not have
Heartbeat bag data is postbacked, then illustrates the equipment off-line（Device hardware failure）, intelligent gateway is by the ID of the equipment labeled as offline
The ID in the same category of device more renewed, is directly assigned in new equipment, deletes the MAC value of original equipment by pattern.
The present invention has the following advantages：1, optimize the designing scheme of automatic distribution ID, system is distributed automatically, without personnel's hand
Dynamic to start distribution ID processes, the ID of system interior joint equipment is disposably assigned, and accuracy rate is high.2, complete it in system configuration
Afterwards, all devices ID on system bus is managed, when product is replaced without redistributing new ID, directly
It connects by used equipment ID updates into new equipment, without reconfiguring the information such as various patterns and title in intelligent domestic system again.
3, detecting system bus, is arranged to off-line state by the ID of the total off-line device of system, is not involved in system communication processes at any time.
The above is only the better embodiment of the present invention, therefore all constructions according to described in present patent application scope,
The equivalent change or modification that feature and principle are done, is included in the range of present patent application.
Claims (5)
1. the ID auto-allocation methods of the intelligent domestic system node device based on CAN bus, which is characterized in that system interior joint
Equipment uses STM32f103 as MCU, using CAN bus CAN 2.0B agreements, using the mode of extension in CAN2.0B agreements,
What is sent is that data are auspicious；Extended ID is 29 in CAN2.0B agreements, using wherein no less than 4 equipment as node device
Device type marker code of the high position of no less than two as product in ID, the no less than device id of 4 is removed in device id
It is device id low level to remove high-order portion, and device id low level is specific equipment ID number number in same category of device；STM32f103 is every
Unique not modifiable 96 bit sequence number of piece chip internal all one using 96 unique sequence numbers as seed, generates one
A high position for the random number is filled into the low level of device id by the no less than random number of the lower bit number of device id, will be random
Several low levels is filled into CAN2.0B agreements in Extended ID 29, and the lower bit number from 0 to random number is sequentially filled；Each
Node device generates a MAC value according to the unique sequence numbers of 96 in MCU, as the MAC value of each node disjoint, Mei Geshe
Standby MAC value is different from；The automatic allocation steps of ID of node device are as follows：
S-1：Intelligent gateway, which is sent, allows in system bus all node devices to postback device id instruction, and all nodes are set in system
The standby ID for sending respective node device successively according to device type,
S-2:Intelligent gateway is received in system after the ID of all node devices, according to device type by all node devices
ID values and the MAC value of equipment are saved in the information table of intelligent gateway,
S-3:Whether intelligent gateway parses node device ID and equipment MAC value in intelligent gateway successively according to node device type
Existing in information table, intelligent gateway first handles the ID and MAC value of node device,
If illustrate the node device the allocated ID, and and intelligence there are the ID and MAC value of node device in intelligent gateway information table
It can preserve in gateway (100) information table consistent, intelligent gateway sends instructions to node device, which exits ID points
With process, step S-10 is performed;
If there is no the ID of the node device and MAC value or the matching of ID values inconsistent in intelligent gateway information table, step S- is performed
4;
S-4:Intelligent gateway, which is sent, allows node device request ID to instruct,
S-5：Id command is asked in transmission of attending the meeting after node device reception instruction,
S-6：Intelligent gateway can be that the node device distributes an ID value,
S-7：After the node device receives the ID of intelligent gateway distribution, the MAC value of ID and the node device is postbacked to intelligent network
Put capable confirmation into,
S-8:If intelligent gateway confirmation is errorless, S-9 is performed, if intelligent gateway parses the node device and postbacks ID and intelligent gateway
When distribution ID is inconsistent, then S-4 is performed, intelligent gateway performs ID assigning process from new again, until being allocated successfully, if intelligent gateway
Middle preservation ID values are full, can not continue to distribute ID values, then perform S-12,
S-9：Confirmation message is sent to the node device, after node device receives confirmation message, ID values are saved in the node
In equipment FL100SH,
S-10:Next similar node device, implementation procedure weight are completed and then handled as procedure described above to one node device
The step of multiple S-3 to S-9,
S-11:After all node devices are disposed, the automatic assigning process of ID of node device is exited,
S-12:ID can not be applied for by sending command prompt node device.
2. the ID auto-allocation methods of the intelligent domestic system node device based on CAN bus according to right wants 1, special
Sign is, Extended ID is 29 in CAN2.0B agreements, using wherein 10 device ids as node device, in 10 ID
Device type marker codes of the Gao Siwei as product, low six are specific equipment ID number in same category of device.
3. the ID auto-allocation methods of the intelligent domestic system node device based on CAN bus according to right wants 2, special
Sign is that Extended ID is 29 in CAN2.0B agreements, using wherein 10 device ids as node device, uses CAN2.0B
16-25 positions in agreement in Extended ID 29, device type marker codes of the Gao Siwei as product in 10 ID, low six
Position is specific equipment ID number in same category of device.
4. the ID auto-allocation methods of the intelligent domestic system node device based on CAN bus according to right wants 2, special
Sign is, unique not modifiable 96 bit sequence number of every chip internal of STM32f103 all one, by 96 unique sequence numbers
As seed, 12 random numbers are generated, it, will by high six of 12 random numbers be filled into 10 ID low six
The 0-5 positions that low six of 12 random numbers are filled into 29 Bits Expanding ID；
The ID auto-allocation methods of the intelligent domestic system node device based on CAN bus according to right wants 1, feature
It is, each node device generates the MAC value of eight bytes according to the unique sequence numbers of 96 in MCU, as each node
Independent MAC value.
5. the ID automatic management methods of the intelligent domestic system node device based on CAN bus, which is characterized in that claim 1
In the intelligent domestic system operational process based on CAN bus, intelligent gateway is mass-sended according to device type and sends heartbeat packet
Data carry out the inspection of equipment on-line state, if hair existing equipment does not postback heartbeat packet retrieval data, intelligent gateway is sent
The device reset is allowed to instruct, then heartbeat bag data is sent to the equipment again, if the equipment postbacks data, which is in
Wire state if the equipment does not postback heartbeat bag data, illustrates the equipment off-line, device hardware failure, intelligent gateway should
The ID of equipment is labeled as off-line mode, and in the same category of device more renewed, directly the ID is assigned in new equipment, deletes original and sets
Standby MAC value.
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| CN109104303A (en) * | 2018-07-20 | 2018-12-28 | 中国电子科技集团公司第三十八研究所 | A kind of automatic configuration system and method for CAN bus ID |
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