CN106789503A - Access service mode under terminal called collection is preposition - Google Patents
Access service mode under terminal called collection is preposition Download PDFInfo
- Publication number
- CN106789503A CN106789503A CN201611150931.5A CN201611150931A CN106789503A CN 106789503 A CN106789503 A CN 106789503A CN 201611150931 A CN201611150931 A CN 201611150931A CN 106789503 A CN106789503 A CN 106789503A
- Authority
- CN
- China
- Prior art keywords
- card
- user profile
- casing
- sent
- gateway
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- H04L12/40006—Architecture of a communication node
- H04L12/40013—Details regarding a bus controller
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/20—Cooling means
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F7/00—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
- G07F7/08—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means
- G07F7/0873—Details of the card reader
- G07F7/0893—Details of the card reader the card reader reading the card in a contactless manner
-
- 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
-
- 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
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
- H04L69/163—In-band adaptation of TCP data exchange; In-band control procedures
-
- 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
Abstract
A kind of access service mode under terminal called collection is preposition, when user is placed on IC-card on card reader/writer, card reader/writer just reads the user profile in IC-card and be sent in the microprocessor of business machine, so the user profile for receiving just is sent to data gateway by microprocessor by way of CAN interface is with CAN communication, the user profile is sent to gateway server by the data gateway in TCP modes, the user profile is just sent to WebService servers by the gateway server, the WebService servers are just sent to the user profile in database server compared with the user profile in database server, if any the user profile being consistent, just in subsidy amount of money return business machine and by the IC-card that card reader/writer is write after using；Effectively prevent existing bus network usually occur communication failure, cannot ensure data transfer requirement of real-time defect.
Description
Technical field
The present invention relates to terminal called technical field, the access service side under more particularly to a kind of terminal called collection is preposition
Formula,
It is primarily adapted for use in public transit system, catering system, identification system, water electric meter system, city one-card, campus one
The application scenario relevant with smart card that cartoon, city small amount payment are so arrived.
Background technology
Now in card system, the school-run enterprise's card system application being particularly most widely used and city one-card
System, the terminal data acquisition system of its collection IC card information is often following two：
A kind of is the terminal data acquisition system based on TCP.Grid based on TCP/IP, the system compatible of its composition
Property and interoperability it is good, resource sharing capability is strong, can easily realize the resource on the time of terminal and information system
It is shared；Data transmission distance is long, transmission rate is high；It is easy to Internet connections, the advantage of inexpensive, easy networking.
But TCP/IP uses the Carrier Sense Multiple Access agreement (CSMA/CD) with collision detection, Wu Fabao
The requirement of real-time of data transfer is demonstrate,proved, is a kind of network system of uncertainty；Star bus wire structures, largely concentrate terminal
High cost during wiring.
Another kind is the terminal data acquisition system based on RS485.The data maximum transmission rate of RS-485 is 10Mbps；
RS-485 interfaces are the combination using balance driver and differential receiver, the dry ability enhancing of anti-common mode, i.e. noise immunity
It is good；The maximum transmission distance standard value of RS-485 interfaces is 4000 feet, actually up to 3000 meters；RS485 interfaces composition
Half-duplex network is general only to need two lines, RS485 interfaces to be transmitted using Shielded Twisted Pair.
RS-485 interfaces are to allow to connect typically 60 transceivers of load in bus, i.e., with multistation ability, so use
Family can easily set up device network using single RS-485 interfaces, and speed is slow under normal circumstances, general to use
9600bps, is polling mode during multi-computer communication, and efficiency is low；RS485 specify only physical layer, without data link layer, so
It is None- identified to mistake, unless the physical error such as some short circuits, so easily causes a destruction of a node, desperately to
Bus sends out data (straight hair 1), so causes whole bus to paralyse, so RS485 once goes bad a node, this bus network
Will communication failure.
The content of the invention
To solve the above problems, the invention provides a kind of terminal called collection it is preposition under access service mode, effectively
Avoid existing bus network usually occur communication failure, cannot ensure data transfer requirement of real-time defect.
In order to overcome deficiency of the prior art, the invention provides a kind of access service of terminal called collection under preposition
The solution of mode, it is specific as follows：
A kind of access service mode under terminal called collection is preposition, sets terminal called collection front-end system first, its
Including business machine, data gateway, gateway server, database server and all-in-one card platform；
The business machine includes microprocessor and the CAN interface being connected with microprocessor, with microprocessor phase
Also card reader/writer and the card printer of connection；
The CAN interface of the business machine is connected by CAN with data gateway；
The data gateway is connected with gateway server with database server via Ethernet, and the data gateway leads to
Cross TCP communication mode to be communicated with the gateway server, user profile and benefit are store in the database server
Help the amount of money；
The all-in-one card platform includes WebService servers and the monitoring being connected with WebService servers
Terminal, the WebService server via Ethernets are connected with data gateway；
There is IC-card to user configuring in addition, user profile is included in the IC-card, when IC-card is placed on read-write by user
When on card device, card reader/writer just reads the user profile in IC-card and be sent in the microprocessor of business machine, so micro- place
The user profile for receiving just is sent to data gateway, the data by reason device by way of CAN interface is with CAN communication
The user profile is sent to gateway server by gateway in TCP modes, and the gateway server is just sent to the user profile
The user profile is just sent to same data in database server by WebService servers, the WebService servers
User profile in the server of storehouse compares, and if any the user profile being consistent, just the subsidy amount of money is returned in business machine and led to
In the IC-card crossed after card reader/writer write-in is used.
The CAN is many host-guest architectures, and each node has CAN controller, when multiple nodes send, with what is sent
No. ID is arbitrated automatically, can thus realize bus data not entanglement, and a node is distributed, and another node can be with
Bus free is detected, and is sent at once.
The CAN has CAN controller, any mistake of bus can be detected, if itself mistake is more than 128
It is individual, with regard to automatic blocking, protect bus；If detecting other node mistakes or itself mistake, all mistake can be sent to bus
Come to point out other nodes this data be wrong, such CAN once has a node cpu program fleet to frame, it
Controller protects CAN with regard to automatic blocking.
The WebService servers are arranged in chest；The IC-card is CPU card；The user profile includes user
Name and the identification card number information of user.
The chest contains casing Y1, the cover plate Y2 in the front plate of casing and supporting plate Y3, the supporting plate
The size of lower wall panels of the size of Y3 more than the casing Y1, the casing Y1 is riveted on supporting plate Y3, the casing Y1's
One sidepiece same to sliding support Y12 mutually rivet, and the other end of the sliding support Y12 is located on the cover plate in the front plate of casing
Y2 phases are riveted；
Riveted on a pair of edge surfaces inside the casing Y1 some to support chip Y6, the opposite rivetings of each pair support chip Y6
Be connected on a pair of edge surfaces inside the casing Y1, put on each pair support chip Y6 same ground keeping parallelism for allowing gas
One side of plates Y7, all plates Y7 that stream flows through open up cavity shape long for the through slot that allows air-flow to flow through
Y8, a pair for adjoining in addition maintain interval for the plates Y7 for allowing air-flow to flow through between the projection of horizontal plane, for allowing gas
Cross-distribution between the through slot Y8 that stream flows through；
The back side on the casing Y1 tops sets mechanism of qi Y4；In addition in described a pair of edge of casing Y1 close to supporting plate
Y3 whereabouts all opens up more than two first lumen therethrough Y51, in the cover plate Y2 bottoms in the front plate positioned at casing
Portion is also provided with more than two second lumen therethrough Y52；
The two opposite vertexes whereabouts of described supporting plate Y3 each open up the conduit Y9 for being embedded with screw, the conduit
Y9 is connected to the leading screw Y10 of rising and falling, and the leading screw Y10 that rises and falls can be screwed into conduit Y9 according to the silk groove of screw；The leading screw that rises and falls
Horizontal span of the Y10 bottoms with steel ball Y11, the steel ball Y11 be each not more than with longitudinal span screw laterally across
Degree and longitudinal span.
Each node has CAN controller, when multiple nodes send, is arbitrated automatically with No. ID sent, thus
Bus data not entanglement can be realized, and a node is distributed, and another node can detect bus free, and send out at once
Send, this eliminate the inquiry of main frame, improve bus utilization, enhance rapidity.The CAN has CAN controller,
Any mistake of bus can be detected, if itself mistake is more than 128, with regard to automatic blocking, protect bus；If detection
To other node mistakes or itself mistake, all erroneous frame can be sent to bus to point out other nodes this data be mistake
, such CAN once has a node cpu program fleet, and its controller protects CAN, institute with regard to automatic blocking
So that at security requirement networking high, CAN communication is very strong.
Brief description of the drawings
Fig. 1 is connection diagram of the invention
Fig. 2 is the inside front view of chest of the invention；
Fig. 3 is the right view of chest of the invention；
Fig. 4 is the part of chest of the invention；
Fig. 5 is the part of chest of the invention.
Fig. 6 is the part of chest of the invention.
Specific embodiment
The present invention is described further below in conjunction with accompanying drawing.
1- Fig. 6 understands that the access service mode under a kind of terminal called collection of the invention is preposition sets first with reference to the accompanying drawings
Terminal called collection front-end system is put, it includes business machine, data gateway, gateway server, database server and a card
Logical platform；
The business machine includes microprocessor and the CAN interface being connected with microprocessor, with microprocessor phase
Also card reader/writer and the card printer of connection；
The CAN interface of the business machine is connected by CAN with data gateway；
The data gateway is connected with gateway server with database server via Ethernet, and the data gateway leads to
TCP communication mode is crossed to be communicated with the gateway server；
The all-in-one card platform includes WebService servers and the monitoring being connected with WebService servers
Terminal, the WebService server via Ethernets are connected with data gateway；
There is IC-card to user configuring in addition, user profile is included in the IC-card, when IC-card is placed on read-write by user
When on card device, card reader/writer just reads the user profile in IC-card and be sent in the microprocessor of business machine, so micro- place
The user profile for receiving just is sent to data gateway, the data by reason device by way of CAN interface is with CAN communication
The user profile is sent to gateway server by gateway in TCP modes, and the gateway server is just sent to the user profile
The user profile is just sent to same data in database server by WebService servers, the WebService servers
User profile in the server of storehouse compares, and if any the user profile being consistent, just the subsidy amount of money is returned in business machine and led to
In the IC-card crossed after card reader/writer write-in is used.
The CAN is many host-guest architectures, and each node has CAN controller, when multiple nodes send, with what is sent
No. ID is arbitrated automatically, can thus realize bus data not entanglement, and a node is distributed, and another node can be with
Bus free is detected, and is sent at once, this eliminate the inquiry of main frame, improve bus utilization, enhance rapidity.
The CAN has CAN controller, any mistake of bus can be detected, if itself mistake is more than 128
It is individual, with regard to automatic blocking, protect bus；If detecting other node mistakes or itself mistake, all mistake can be sent to bus
Come to point out other nodes this data be wrong, such CAN once has a node cpu program fleet to frame, it
Controller protects CAN, so at security requirement networking high, CAN communication is very strong with regard to automatic blocking.
The WebService servers are arranged in chest；The IC-card is CPU card；The user profile includes user
Name and the identification card number information of user.
Current WebService servers are arranged in casing, because WebService servers can generate heat when performing, such as
Fruit hot-fluid cannot be excluded in real time, and hot gas increases in often causing casing, make WebService servers former under such circumstances
Barrier takes place frequently, or even the problem for burning out occurs；The casing lower end for setting WebService servers at present in addition is substantially
Copper alloy support frame, quality is not small, if moving casing as palpus, carrying out and safeguard, it is impossible to easily move, so generated to maintenance tired
It is difficult.
The chest contains casing Y1, the cover plate Y2 in the front plate of casing and supporting plate Y3, the supporting plate
The size of lower wall panels of the size of Y3 more than the casing Y1, the casing Y1 is riveted on supporting plate Y3, the casing Y1's
One sidepiece same to sliding support Y12 mutually rivet, and the other end of the sliding support Y12 is located on the cover plate in the front plate of casing
Y2 phases are riveted；The cover plate Y2 in the front plate of casing can be riveted using sliding support Y12 one do as center line
Rotation.
Riveted on a pair of edge surfaces inside the casing Y1 some to support chip Y6, the opposite rivetings of each pair support chip Y6
Be connected on a pair of edge surfaces inside the casing Y1, put on each pair support chip Y6 same ground keeping parallelism for allowing gas
One side of plates Y7, all plates Y7 that stream flows through open up cavity shape long for the through slot that allows air-flow to flow through
Y8, a pair for adjoining in addition maintain interval for the plates Y7 for allowing air-flow to flow through between the projection of horizontal plane, for allowing gas
Cross-distribution between the through slot Y8 that stream flows through, allows and piece stream is constituted between the plates Y7 for allowing air-flow to flow through, and improves hot-fluid defeated
Effect is sent, cooling effect is greatly improved；
The back side on the casing Y1 tops sets mechanism of qi Y4, it is described go out mechanism of qi Y4 run when can be in casing Y1
Air-flow remove so that subatmospheric；All opened up close to supporting plate Y3 whereabouts in described a pair of edge of casing Y1 in addition
More than two first lumen therethrough Y51, two or more is also provided with the cover plate Y2 bottoms in the front plate positioned at casing
The second lumen therethrough Y52；When mechanism of qi Y4 outlets are gone out, thermal current concedes mechanism of qi Y4 shiftings towards eminence flowing in the casing Y1
Remove, the second lumen therethrough Y52 of cover plate Y2 of the cold air from the first lumen therethrough Y51 with the front plate positioned at casing is flowed into addition
In casing Y1, reciprocating air-flow cooling frame structure is constituted；
The two opposite vertexes whereabouts of described supporting plate Y3 each open up the conduit Y9 for being embedded with screw, the conduit
Y9 is connected to the leading screw Y10 of rising and falling, and the leading screw Y10 that rises and falls can be screwed into conduit Y9 according to the silk groove of screw；The leading screw that rises and falls
Horizontal span of the Y10 bottoms with steel ball Y11, the steel ball Y11 be each not more than with longitudinal span screw laterally across
Degree and longitudinal span；Steel ball Y11 can be attended by, and the leading screw Y10 that rises and falls is complete to be screwed into the conduit Y9 for being embedded with screw, described
Leading screw Y10 tops fall with leading screw head, twisting leading screw head can reach rising and falling for the leading screw Y10 that rises and falls；Two couples of leading screw Y10 that rise and fall are in holding
When of continuing rising, the steel ball Y11 integrally enters in conduit Y9, and now supporting plate Y3 is increased to erection effect with adjoint on the ground,
Now casing is firm is placed on the ground；In addition when two couples of leading screw Y10 that rise and fall persistently are reduced, the steel ball Y11 i.e. can be via
Steel ball is moved.
The framework allows and piece stream is constituted between the plates Y7 for allowing air-flow to flow through, and improves hot-fluid conveying effect, greatly changes
It has been apt to cooling effect；When mechanism of qi Y4 outlets are gone out, thermal current concedes mechanism of qi Y4 removals towards eminence flowing in the casing Y1,
The second lumen therethrough Y52 of cover plate Y2 of the other cold air from the first lumen therethrough Y51 with the front plate positioned at casing flows into case
In body Y1, reciprocating air-flow cooling frame structure is constituted；Allow steel ball Y11 to attend by complete being screwed into of the leading screw Y10 that rises and falls and be embedded with silk
Female conduit Y9, with leading screw head, twisting leading screw head can reach rising and falling for the leading screw Y10 that rises and falls at the leading screw Y10 tops of rising and falling；Two
To rising and falling leading screw Y10 when lasting rise, the steel ball Y11 integrally enters in conduit Y9, and now supporting plate Y3 is with ground phase
Suffer, be increased to erection effect, now casing is firm is placed on the ground；It is described in addition when two couples of leading screw Y10 that rise and fall persistently are reduced
Steel ball Y11 i.e. being capable of moving via steel ball.
The present invention is described in the way of illustrating above, it will be understood by those of skill in the art that the disclosure
Embodiments described above is not limited to, in the case of without departing from the scope of the present invention, can be made a variety of changes, change and be replaced
Change.
Claims (5)
1. the access service mode under a kind of terminal called collection is preposition, it is characterised in that before terminal called collection is set first
System is put, it includes business machine, data gateway, gateway server, database server and all-in-one card platform；
The business machine includes microprocessor and the CAN interface being connected with microprocessor, is connected with microprocessor
Also have card reader/writer and card printer；
The CAN interface of the business machine is connected by CAN with data gateway；
The data gateway is connected with gateway server with database server via Ethernet, and the data gateway passes through
TCP communication mode is communicated with the gateway server；
The all-in-one card platform includes WebService servers and the monitor terminal being connected with WebService servers,
The WebService server via Ethernets are connected with data gateway；
There is IC-card to user configuring in addition, user profile is included in the IC-card, when IC-card is placed on card reader/writer by user
When upper, card reader/writer just reads the user profile in IC-card and be sent in the microprocessor of business machine, such microprocessor
The user profile for receiving just is sent to data gateway, the data gateway by way of CAN interface is with CAN communication
The user profile is sent in TCP modes by gateway server, the gateway server is just sent to the user profile
The user profile is just sent to same data in database server by WebService servers, the WebService servers
User profile in the server of storehouse compares, and if any the user profile being consistent, just the subsidy amount of money is returned in business machine and led to
In the IC-card crossed after card reader/writer write-in is used.
2. the access service mode under terminal called collection according to claim 1 is preposition, it is characterised in that the CAN is total
Line is many host-guest architectures, and each node has CAN controller, when multiple nodes send, is arbitrated automatically with No. ID sent,
Bus data not entanglement can be thus realized, and a node is distributed, and another node can detect bus free, and
Send at once.
3. the access service mode under terminal called collection according to claim 1 or claim 2 is preposition, its feature exists
There is CAN controller in the CAN, any mistake of bus can be detected, if itself mistake is more than 128, just
Automatic blocking, protects bus；If detecting other node mistakes or itself mistake, all erroneous frame can be sent to bus, come
It is wrong to point out other nodes this data, and such CAN once has a node cpu program fleet, its control
Device protects CAN with regard to automatic blocking.
4. the access service mode under terminal called collection according to claim 1 or claim 2 is preposition, its feature exists
In the WebService servers are arranged on chest；The IC-card is CPU card；The user profile includes user name and use
The identification card number information at family.
5. the access service mode under terminal called collection according to claim 1 or claim 2 is preposition, its feature exists
Contain casing, the cover plate in the front plate of casing and supporting plate in the chest, the size of the supporting plate is more than institute
The size of the lower wall panels of casing is stated, the casing is riveted in supporting plate, same to sliding support of a sidepiece of the casing
Mutually rivet, the cover plate that the other end of the sliding support is located in the front plate of casing is mutually riveted；
Rivet some to support chip on a pair of edge surfaces inside the casing, each pair support chip is riveted on the case in opposite directions
On a pair of edge surfaces inside body, put on each pair support chip same ground keeping parallelism for the sheet that allows air-flow to flow through
Body, one side of all plates open up cavity shape long for the through slot that allows air-flow to flow through, a pair of the use adjoined in addition
Plates to allow air-flow to flow through maintain interval between the projection of horizontal plane, for allow air-flow to flow through through slot between intersect point
Cloth；
The back side on the casing top sets mechanism of qi；In addition in a pair of edge of the casing close to supporting plate whereabouts all
More than two first lumen therethroughs are opened up, is also provided with more than two in the cover plate bottom in the front plate positioned at casing
Second lumen therethrough；
Two opposite vertexes whereabouts of described supporting plate each open up the conduit for being embedded with screw, and the conduit silk has been connected to
Fall leading screw, and the leading screw that rises and falls can be screwed into conduit according to the silk groove of screw；The leading screw bottom of rising and falling is described with steel ball
The horizontal span of steel ball is each not more than the horizontal span and longitudinal span of screw with longitudinal span.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611150931.5A CN106789503A (en) | 2016-12-14 | 2016-12-14 | Access service mode under terminal called collection is preposition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611150931.5A CN106789503A (en) | 2016-12-14 | 2016-12-14 | Access service mode under terminal called collection is preposition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106789503A true CN106789503A (en) | 2017-05-31 |
Family
ID=58888171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611150931.5A Pending CN106789503A (en) | 2016-12-14 | 2016-12-14 | Access service mode under terminal called collection is preposition |
Country Status (1)
| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108594893A (en) * | 2018-05-11 | 2018-09-28 | 南京思达捷信息科技有限公司 | A kind of the subsidiary engine control platform and its method of big data |
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| CN2699381Y (en) * | 2004-04-30 | 2005-05-11 | 饶运涛 | Induction type IC card charging machine based on in situ bus CAN |
| CN101929497A (en) * | 2009-11-27 | 2010-12-29 | 北京北方专用车新技术发展有限公司 | Roller bolt |
| CN202534062U (en) * | 2012-03-01 | 2012-11-14 | 东方通信股份有限公司 | ATM (automated teller machine) system based on CAN (controller area network) buses |
| CN204595866U (en) * | 2015-05-05 | 2015-08-26 | 广州市皇粤动漫科技有限公司 | Intelligent card reader and comprise the intelligent card reader management system of this intelligent card reader |
| CN105916323A (en) * | 2016-05-27 | 2016-08-31 | 东莞市联洲知识产权运营管理有限公司 | Novel electrical control cabinet for communication equipment |
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2016
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2699381Y (en) * | 2004-04-30 | 2005-05-11 | 饶运涛 | Induction type IC card charging machine based on in situ bus CAN |
| CN101929497A (en) * | 2009-11-27 | 2010-12-29 | 北京北方专用车新技术发展有限公司 | Roller bolt |
| CN202534062U (en) * | 2012-03-01 | 2012-11-14 | 东方通信股份有限公司 | ATM (automated teller machine) system based on CAN (controller area network) buses |
| CN204595866U (en) * | 2015-05-05 | 2015-08-26 | 广州市皇粤动漫科技有限公司 | Intelligent card reader and comprise the intelligent card reader management system of this intelligent card reader |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108594893A (en) * | 2018-05-11 | 2018-09-28 | 南京思达捷信息科技有限公司 | A kind of the subsidiary engine control platform and its method of big data |
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