CN105592570B - device pairing method and system - Google Patents
device pairing method and system Download PDFInfo
- Publication number
- CN105592570B CN105592570B CN201610101372.2A CN201610101372A CN105592570B CN 105592570 B CN105592570 B CN 105592570B CN 201610101372 A CN201610101372 A CN 201610101372A CN 105592570 B CN105592570 B CN 105592570B
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- dining table
- terminal equipment
- table number
- terminal
- broadcast message
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/14—Direct-mode setup
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/11—Allocation or use of connection identifiers
Abstract
The present invention provides a kind of device pairing method and system, and this method includes：First terminal equipment identifies label, obtains the corresponding dining table number of label；First terminal equipment determines the corresponding second terminal device identification of dining table number identified according to the correspondence of each dining table number and each second terminal device identification；First terminal equipment sends broadcast message, and broadcast message includes second terminal device identification, is connect so that corresponding second terminal equipment carries out pairing according to broadcast message, with first terminal equipment.Using the correspondence of dining table number and second terminal device identification as bridge, first terminal equipment is by identifying dining table number, directly determine and broadcast its second terminal device identification for needing to establish pairing connection, so that operation of the second terminal equipment without search for, select from multiple first terminal equipment of surrounding the first terminal equipment for needing to match, is realized convenient, accurate and reliable.
Description
Technical field
The invention belongs to fields of communication technology, more particularly, to a kind of device pairing method and system.
Background technology
How popularizing and applying with intelligent terminal facilitates, low cost, effectively realization is paired as one newly
Problem.
Traditional equipment room matching method is realized by searching for matched mode.?
With mobile phone terminal, after mobile phone terminal opens Bluetooth function, bluetooth headset existing for search surrounding will search for obtained whole bluetooths
Earphone interface identification is shown.In whole bluetooth headsets mark that mobilephone terminal user goes out from interface display, selection is wanted to match therewith
Pairing connection is carried out to the bluetooth headset of connection.
In aforesaid way, user is needed to carry out the operation such as selecting on a user interface, it is inconvenient；Moreover, if mobile phone
Terminal simultaneously scans for the bluetooth headset of multiple similar marks, such as multiple with different media access controls (Medium Access
Control, abbreviation MAC) come the bluetooth headset that identifies, user will be unable to be distinguish for address, cause pairing connection accuracy compared with
Difference.
Invention content
In view of the above problems, the present invention provides a kind of device pairing method and system, with conveniently, accurately and reliably
Realize the pairing connection between terminal device.
The present invention provides a kind of device pairing methods, including：
First terminal equipment identifies label, obtains the corresponding dining table number of the label；
The first terminal equipment determines the meal according to the correspondence of each dining table number and each second terminal device identification
The corresponding second terminal device identification of table number；
The first terminal equipment sends broadcast message, and the broadcast message includes the second terminal device identification,
So that the corresponding second terminal equipment of the second terminal device identification is according to the broadcast message, with the first terminal equipment
Carry out pairing connection.
Optionally, before the first terminal equipment sends broadcast message, further include：
The first terminal equipment disconnects current pairing connection；
First terminal equipment described in the first terminal apparatus modifications is identified as the second terminal device identification.
Optionally, before the first terminal equipment sends broadcast message, further include：
The first terminal equipment judges whether are the dining table number currently identified and the preceding dining table number once identified
Unanimously,
If inconsistent, the first terminal equipment sends the broadcast message；
If consistent, the first terminal equipment judgement currently identifies that the time of the dining table number is once identified with preceding
Whether the difference between the time of the dining table number is poor more than preset time,
When the difference is more than preset time difference, the first terminal equipment sends the broadcast message.
The present invention provides a kind of device pairing systems, including：
First terminal equipment, second terminal equipment and label, the label are used to identify the dining table number of dining table, wherein
The first terminal equipment includes recognition means, processor and communication device, wherein
The recognition means, the label, obtains the corresponding dining table number of the label for identification；
The processor determines the meal for the correspondence according to each dining table number and each second terminal device identification
The corresponding second terminal device identification of table number；Also,
The processor is additionally operable to send broadcast message by the communication device, and the broadcast message includes described
Second terminal device identification；
The second terminal equipment is connect for carrying out pairing with the first terminal equipment according to the broadcast message.
Optionally, the processor is additionally operable in the second terminal equipment mark for receiving the recognition means transmission
After knowledge, current pairing connection is disconnected, and that changes the first terminal equipment is identified as the second terminal device identification.
Optionally, the processor is additionally operable to the dining table number for judging currently to identify and the preceding meal once identified
Whether table number is consistent, if unanimously, judging currently to identify that the time of the dining table number once identifies the dining table number with preceding
Time between difference whether be more than preset time it is poor, it is inconsistent in the dining table number and the preceding dining table number once identified,
Or the difference passes through the communication device and sends the broadcast message when being more than preset time difference.
Optionally, the first terminal equipment further includes：Memory, for storing the correspondence.
Optionally, the label includes any one of following tag types：
Object identity OID codes, radio frequency identification (RFID) labels, Quick Response Code, bar code, also,
Correspondingly, the recognition means include recognition means type corresponding with the tag types used.
Optionally, the first terminal equipment includes talking pen, and the second terminal equipment includes tablet computer.
Device pairing method and system provided by the invention can be provided with the label of mark dining table number on dining table, the
One terminal device is by identifying the label being arranged on dining table to obtain corresponding dining table number, eventually according to each dining table number and each second
The correspondence of end equipment mark, determines the corresponding second terminal device identification of dining table number recognized, and then first terminal is set
By way of the standby second terminal device identification determined broadcast so that corresponding second terminal equipment is initiated and first terminal
The pairing of equipment room connects, and establishes pairing relationship between the two.It is with dining table number and the correspondence of second terminal device identification
Bridge, first terminal equipment directly determine by identifying dining table number and the second terminal for broadcasting its needs foundation pairing connection are set
It is standby to identify so that second terminal equipment is without searched for from multiple first terminal equipment of surrounding, needs being selected to match
The operation of first terminal equipment is realized convenient, accurate and reliable.
Description of the drawings
Fig. 1 is the flow chart of present device matching method embodiment one；
Fig. 2 is the flow chart of present device matching method embodiment two；
Fig. 3 is the structural schematic diagram of present device pair system embodiment one.
Specific implementation mode
Fig. 1 is the flow chart of present device matching method embodiment one, as shown in Figure 1, this method comprises the following steps：
Step 101, first terminal equipment identify label, obtain the corresponding dining table number of label.
Step 102, first terminal equipment determine and know according to the correspondence of each dining table number and each second terminal device identification
The corresponding second terminal device identification of dining table number not gone out.
Step 103, first terminal equipment send broadcast message, and broadcast message includes corresponding second terminal equipment mark
Know, so that the corresponding second terminal equipment of second terminal device identification is matched according to broadcast message with first terminal equipment
Connection.
In the present embodiment, for suitable for the service scenarios such as dining room, above-mentioned first terminal equipment is such as talking pen,
Above-mentioned second terminal equipment is such as tablet computer.Certainly, above-mentioned first terminal equipment and second terminal equipment are not limited to the act
Example, such as first terminal equipment can also be bluetooth headset, blue-tooth printer, bluetooth keyboard etc., and above-mentioned second terminal equipment is also
Can be mobile phone, PC machine, TV etc..
It is illustrated for establishing pairing connection between talking pen and tablet computer below.At present in dining room, using flat
The applications such as plate computer orders food, message push, intelligent interaction have become a kind of trend.When user using talking pen to being printed on
When the point that the menu of object identity (Object Identifier, abbreviation OID) code carries out corresponding vegetable reads selection operation, in order to
The dish information that talking pen is read is shown on tablet computer, talking pen needs first to establish between the two with tablet computer
Pairing connection.Wherein, pairing connection generally can be Bluetooth pairing connection.
The present embodiment matches in order to avoid tablet computer and talking pen in connection procedure, for example waiter opens tablet computer
Bluetooth function, need around search existing for multiple talking pens identified with MAC Address, and then waiter therefrom selects reality
Corresponding talking pen is easy error and inconvenient problem to establish pairing between the two, provides and following is with dining table number
The solution of bridge.
Specifically, it can be printed with label on each dining table, the dining table number of corresponding dining table is carried in the label.?
In actual implementation, which includes but not limited to any one of following tag types：OID codes, radio frequency identification (Radio
Frequency Identification, abbreviation RFID) label, Quick Response Code, bar code etc..The label is not limited to be arranged in dining table
It on desktop, for example can also be arranged on card, be carried by waiter, one dining table number of each tags unique identifier.
Accordingly, as the corresponding tag types phase for needing to be provided with use in the talking pen of first terminal equipment
The recognition means matched.For example, if label is using OID code types, talking pen, which is only required to be, provides the identification reading of OID codes
Take the talking pen of function, that is to say, that the talking pen only needs that OID code recognition means are arranged, and can both complete menu
The identification of middle vegetable is read, and the identification that can also complete dining table number is read.If label is using RFID tag, talking pen
Other than needing that OID code recognition means are arranged, it is also necessary to which RFID reader part is set.When actual design, OID codes recognition means and
The installation position of RFID reader part can be identical or different, for example is all disposed within pen tip position or OID code recognition means are set
It sets in pen tip position, RFID reader part is arranged among pen or another end position.
In the present embodiment, the tablet computer as second terminal equipment could be provided as corresponding with dining table, for
User to use corresponding dining table to eat provides related service.Talking pen and dining table, in other words between talking pen and tablet computer
There is no fixed correspondence.
In talking pen, the correspondence between each dining table number and tablet computer mark in dining room can be previously written.When
Dining table is increased or decreased or replaced in dining room, it, can in time will be updated right when above-mentioned correspondence being caused to change
It should be related to and be written in each talking pen.
During pairing, user takes a seat when needing to order, and the label on dining table is first read and identified with talking pen, to know
Do not go out corresponding dining table number.Wherein, the reading recognition principle of talking pen belongs to the prior art, and this embodiment is not repeated.
In turn, talking pen is electric with each tablet according to each dining table number and each second terminal device identification, that is, each dining table number of storage
The correspondence of brain mark determines the tablet computer mark corresponding to the dining table number recognized, to which talking pen has known that it is needed
Which tablet computer the tablet computer for matching connection is specifically.And then talking pen sends the broadcast for including tablet computer mark
Information, so that each tablet computer for receiving the broadcast message identifies and oneself according to the tablet computer carried in the broadcast message
The consistency checking of body mark, it is determined whether it is to be directed to the broadcast message of itself, if it is the broadcast message for itself, then root
Pairing is carried out according to the broadcast message with the talking pen to connect.
That is, after talking pen sends the broadcast message for carrying the tablet computer mark that it is determined, receive
Each tablet computer of the broadcast message is it needs to be determined that whether the broadcast message is intended for oneself.Determining foundation is by oneself
Tablet computer mark in the broadcast message for identifying and being resolved to is compared, if unanimously, then it is assumed that broadcast message is to be directed to
Oneself, the processing procedure that triggering following is matched with talking pen.
It is understood that in the present embodiment, the broadcast message that talking pen is sent out is equivalent to a notification message, and notice is wide
It broadcasts the tablet computer that is carried in information and identifies corresponding tablet computer needs and carry out pairing with the talking pen and connect.
Wherein, the specific implementation process of the pairing is similar with existing pairing process, and in simple terms, broadcast message is corresponding flat
Plate computer sends pairing request to talking pen, can carry identifying code in the pairing request, talking pen is determining the identifying code just
After really, pairing connection is completed in feedback acknowledgment response, which can be bluetooth connection.
In the present embodiment, the label of mark dining table number is provided on dining table, first terminal equipment is by identifying that setting exists
Label on dining table is to obtain corresponding dining table number, according to the correspondence of each dining table number and each second terminal device identification, really
Surely the corresponding second terminal device identification of dining table number recognized, and then first terminal equipment is by broadcasting determine second eventually
The mode of end equipment mark so that corresponding second terminal equipment initiation is connect with the pairing of first terminal equipment room, establishes two
Pairing relationship between person.Using the correspondence of dining table number and second terminal device identification as bridge, first terminal equipment passes through knowledge
Other dining table number directly determines and broadcasts its second terminal device identification for needing to establish pairing connection so that second terminal equipment
Without search for, select from multiple first terminal equipment of surrounding the operation for the first terminal equipment for needing to match, realize
It is convenient, and due to the uniqueness of dining table number and the correspondence of second terminal equipment, second terminal equipment is wide based on what is received
The consistency for broadcasting second terminal device identification and self identification entrained in information can be realized accurately and reliably with first eventually
Pairing between end equipment.
Fig. 2 is the flow chart of present device matching method embodiment two, as shown in Fig. 2, this method may include as follows
Step：
Step 201, first terminal equipment identify label, obtain the corresponding dining table number of label.
Step 202, first terminal equipment determine and know according to the correspondence of each dining table number and each second terminal device identification
The corresponding second terminal device identification of dining table number not gone out.
Step 203, first terminal equipment judge whether are the dining table number that currently identifies and the preceding dining table number once identified
Unanimously, if it is inconsistent, 205 are thened follow the steps, if otherwise consistent, executes step 204.
Step 204, first terminal equipment judge currently to identify that the time of the dining table number once identifies the dining table with preceding
Number time between difference whether be more than preset time it is poor, if more than thening follow the steps 205.
If being less than, illustrate may be user maloperation, in a short time repeatedly triggering first terminal equipment to same
The identification read operation of label, ends processing.
Step 205, first terminal equipment disconnect current pairing connection, and modification first terminal equipment is identified as second eventually
End equipment identifies.
Step 206, first terminal equipment send broadcast message, and broadcast message includes second terminal device identification, so that
Second terminal equipment carries out pairing with first terminal equipment according to broadcast message and connect.
In the present embodiment, still using first terminal equipment as talking pen, second terminal equipment be tablet computer for illustrate.Its
In, talking pen, label realization method with reference to the foregoing embodiments.
In order to avoid Reusability talking pen reads the label identified on same dining table in user's short time, after triggering repeatedly
Continuous pairing processing procedure, provide pairing processing procedure triggering whether effective decision plan.
Specifically, since there are one-to-one relationships between dining table number and tablet computer mark, to if user makes
When reading the corresponding label of same dining table number repeatedly with talking pen, the front and back dining table number identified twice can be made identical, that is,
The tablet computer mark determined is identical.Therefore, can whether consistent by comparing the dining table number successively identified twice, to sentence
The fixed pairing process for whether needing triggering following, to improve the reliability of pairing processing.
Specifically, talking pen judges whether the dining table number currently identified is consistent with the preceding dining table number once identified,
If inconsistent, the tablet computer that pairing connects is needed to be different before and after illustrating, this pairing process triggering is effective.If otherwise
Unanimously, also to judge whether the triggering of this pairing process is effective in conjunction with following strategy：Talking pen judgement currently identifies the meal
Whether the difference between the time of table number and the preceding time for once identifying the dining table number is poor more than preset time, if more than then
Illustrate it is front and back identify that the time interval of same dining table number is very long twice, i.e., it is front and back need the time matched with same tablet computer between
Every very long, it may be possible to which same dining table has replaced the user having dinner, and pairing process triggering at this time is effective.Opposite, if
The dining table number currently identified and the preceding dining table number once identified are consistent, alternatively, currently identify time of the dining table number with
Difference between the preceding time for once identifying the dining table number is poor no more than preset time, illustrates the triggering nothing of this pairing process
Effect, ends processing.
In the present embodiment, when determining that this pairing process is effective based on above-mentioned decision plan, sent in talking pen above-mentioned
Before broadcast message, following setting processing can also be specifically carried out：Current talking pen may be kept between other tablet computers
Pairing connection, therefore, talking pen first disconnects current pairing connection, and then that changes itself again is identified as the tablet determined
Computer identifies, and talking pen sends the broadcast message for carrying self identification later.Due to talking pen by the mark of itself more
It is changed to the mark of tablet computer determined, therefore broadcast message includes tablet computer mark so that the tablet computer mark
Know corresponding tablet computer pairing is carried out with talking pen according to the broadcast message and connect.
In the present embodiment, the label of mark dining table number can be provided on dining table, first terminal equipment is marked by identifying
It signs to obtain corresponding dining table number, and then according to the consistency of the dining table number currently recognized and the preceding dining table number once recognized
Judgement, it is determined whether the pairing processing procedure of triggering following, it is determined that when the pairing processing procedure of triggering following, first terminal is set
The standby first correspondence according to each dining table number and each second terminal device identification, determines the dining table number recognized corresponding second
Terminal Equipment Identifier, then carry the broadcast message of the second terminal device identification determined by sending so that second terminal
The corresponding second terminal equipment of device identification is directly known based on the broadcast message wants to match the first terminal connecting with it and set
Which first terminal equipment standby is, and then directly actively carries out pairing with the first terminal equipment and connect, without carrying out from surrounding
Multiple first terminal equipment in search, selection need the operation of first terminal equipment matched, realize convenient, accurate and reliable.
Fig. 3 is the structural schematic diagram of present device pair system embodiment one, as shown in figure 3, the system includes：First
Terminal device 1, second terminal equipment 2 and label 3, wherein the label 3 is used to identify the dining table number of dining table.
The first terminal equipment 1 includes recognition means 11, processor 12 and communication device 13.
The recognition means 11, the label 3, obtains 3 corresponding dining table number of the label for identification.
The processor 12, for according to the correspondence of each dining table number and each second terminal device identification, described in determination
The corresponding second terminal device identification of dining table number.
The processor 12 is additionally operable to send broadcast message by the communication device 13, and the broadcast message includes
The second terminal device identification.
The second terminal equipment 2, for carrying out pairing company according to the broadcast message and the first terminal equipment 1
It connects.
Wherein, the first terminal equipment 1 can also include：Memory 14, for storing the correspondence.
Optionally, the processor 12 is additionally operable to set in the second terminal for receiving the transmission of the recognition means 11
After standby mark, current pairing connection is disconnected, and that changes the first terminal equipment is identified as the second terminal equipment mark
Know.
Optionally, the processor 12 is additionally operable to judge that the dining table number that currently identifies once is identified with preceding
Whether dining table number is consistent, if unanimously, judging currently to identify that the time of the dining table number once identifies the dining table with preceding
Number time between difference whether be more than preset time it is poor, differ in the dining table number and the preceding dining table number once identified
When cause or the difference are more than preset time difference, the broadcast message is sent by the communication device 13.
Wherein, the label 3 includes any one of following tag types：Object identity OID codes, radio frequency discrimination RFID mark
Label, Quick Response Code, bar code, also, correspondingly, the recognition means 11 include recognition means corresponding with the tag types used
Type.
Specifically, the first terminal equipment 1 includes talking pen, and the second terminal equipment 2 includes tablet computer.
Each terminal device, each building block can be used for executing embodiment of the method shown in Fig. 1, Fig. 2 in the present embodiment system
In corresponding technical solution, implementing principle and technical effect are similar, and details are not described herein again.
One of ordinary skill in the art will appreciate that：Realize that all or part of step of above method embodiment can pass through
The relevant hardware of program instruction is completed, and program above-mentioned can be stored in a computer read/write memory medium, the program
When being executed, step including the steps of the foregoing method embodiments is executed；And storage medium above-mentioned includes：ROM, RAM, magnetic disc or light
The various media that can store program code such as disk.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (9)
1. a kind of device pairing method, which is characterized in that including：
First terminal equipment identifies label, obtains the corresponding dining table number of the label；
The first terminal equipment determines the dining table number according to the correspondence of each dining table number and each second terminal device identification
Corresponding second terminal device identification；
The first terminal equipment sends broadcast message, and the broadcast message includes that the corresponding second terminal of the dining table number is set
Standby mark, so that the corresponding second terminal equipment of the corresponding second terminal device identification of the dining table number is believed according to the broadcast
Breath, carries out pairing with the first terminal equipment and connect.
2. according to the method described in claim 1, it is characterized in that, before first terminal equipment transmission broadcast message, go back
Including：
The first terminal equipment disconnects current pairing connection；
First terminal equipment described in the first terminal apparatus modifications is identified as the second terminal device identification.
3. according to the method described in claim 1, it is characterized in that, before first terminal equipment transmission broadcast message, go back
Including：
The first terminal equipment judges whether the dining table number currently identified is consistent with the preceding dining table number once identified,
If inconsistent, the first terminal equipment sends the broadcast message；
If consistent, the first terminal equipment judge currently to identify time of the dining table number with it is preceding it is primary identify it is described
Whether the difference between the time of dining table number is poor more than preset time,
When the difference is more than preset time difference, the first terminal equipment sends the broadcast message.
4. a kind of device pairing system, which is characterized in that including：
First terminal equipment, second terminal equipment and label, the label are used to identify the dining table number of dining table, wherein
The first terminal equipment includes recognition means, processor and communication device, wherein
The recognition means, the label, obtains the corresponding dining table number of the label for identification；
The processor determines the dining table number for the correspondence according to each dining table number and each second terminal device identification
Corresponding second terminal device identification；Also,
The processor is additionally operable to send broadcast message by the communication device, and the broadcast message includes the dining table
Number corresponding second terminal device identification；
The corresponding second terminal equipment of the dining table number, for being matched according to the broadcast message and the first terminal equipment
To connection.
5. system according to claim 4, which is characterized in that the processor is additionally operable to receiving the identifier
After the second terminal device identification that part is sent, current pairing connection is disconnected, and change the mark of the first terminal equipment
It is the second terminal device identification to know.
6. system according to claim 4, which is characterized in that the processor is additionally operable to the institute for judging currently to identify
Whether consistent state dining table number and the preceding dining table number once identified, if unanimously, judge currently to identify the dining table number when
Between difference between the preceding time for once identifying the dining table number whether to be more than preset time poor, in the dining table number with before
When the dining table number once identified is inconsistent or the difference is more than preset time difference, passes through the communication device and send institute
State broadcast message.
7. system according to claim 4, which is characterized in that the first terminal equipment further includes：Memory, for depositing
Store up the correspondence.
8. system according to any one of claims 4 to 7, which is characterized in that the label includes following tag types
Any one of：
Object identity OID codes, radio frequency identification (RFID) labels, Quick Response Code, bar code, also,
Correspondingly, the recognition means include recognition means type corresponding with the tag types used.
9. system according to claim 8, which is characterized in that the first terminal equipment includes talking pen, and described second
Terminal device includes tablet computer.
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| CN201610101372.2A CN105592570B (en) | 2016-02-24 | 2016-02-24 | device pairing method and system |
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| CN201610101372.2A CN105592570B (en) | 2016-02-24 | 2016-02-24 | device pairing method and system |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110400377B (en) * | 2018-04-24 | 2022-05-20 | 腾讯科技（深圳）有限公司 | Voucher data duplicate checking method and related equipment |
| CN108965170A (en) * | 2018-06-13 | 2018-12-07 | 四川微迪智控科技有限公司 | A kind of industrial switch system and operation method for gras generally recognized as safe access |
| CN113727291A (en) * | 2020-05-26 | 2021-11-30 | 菜鸟智能物流控股有限公司 | Equipment interaction method, device, server and data processing method |
| CN113613177A (en) * | 2021-08-26 | 2021-11-05 | 三一汽车制造有限公司 | Method and device for pairing connection between terminals and operation machine |
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| CN102930165A (en) * | 2012-11-02 | 2013-02-13 | 左雪梅 | Electronic ordering system |
| CN103037533A (en) * | 2011-09-30 | 2013-04-10 | 联想(北京)有限公司 | Electronic device and communication method thereof |
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| CN103037533A (en) * | 2011-09-30 | 2013-04-10 | 联想(北京)有限公司 | Electronic device and communication method thereof |
| CN102592055A (en) * | 2012-01-11 | 2012-07-18 | 华北电力大学 | Zigbee protocol based wireless fully-self-service dish ordering system |
| CN102930165A (en) * | 2012-11-02 | 2013-02-13 | 左雪梅 | Electronic ordering system |
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