CN110065858A - A kind of ladder control method and system based on two dimensional code - Google Patents
A kind of ladder control method and system based on two dimensional code Download PDFInfo
- Publication number
- CN110065858A CN110065858A CN201910451603.6A CN201910451603A CN110065858A CN 110065858 A CN110065858 A CN 110065858A CN 201910451603 A CN201910451603 A CN 201910451603A CN 110065858 A CN110065858 A CN 110065858A
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- China
- Prior art keywords
- dimensional code
- management platform
- background management
- user
- mobile terminal
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/02—Control systems without regulation, i.e. without retroactive action
- B66B1/06—Control systems without regulation, i.e. without retroactive action electric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/3415—Control system configuration and the data transmission or communication within the control system
- B66B1/3446—Data transmission or communication within the control system
- B66B1/3461—Data transmission or communication within the control system between the elevator control system and remote or mobile stations
Abstract
This application discloses a kind of, and the ladder based on two dimensional code controls method and system, is preset with Standard User information in background management platform, which comprises mobile terminal generates corresponding two dimensional code according to user right；The scanning recognition module of ladder control reads two dimensional code, obtains user right, and user right is sent to cloud communication module；User right is pushed to background management platform by cloud communication module, and background management platform parses user right, obtains user information corresponding with user right；If user information matches with Standard User information, background management platform generates open command, and open command is transmitted to corresponding floor in ladder control and controls relay.In the application, without carrying IC card, practicability is improved, and interim when there is visitor to come, the mobile terminal two dimensional code generated that oneself is carried can be shared with visitor by user, and visitor can be within the term of validity of the two dimensional code, it voluntarily takes elevator and reaches designated floor, it is practical.
Description
Technical field
This application involves field of security technology more particularly to a kind of ladder control method and systems based on two dimensional code.
Background technique
With the improvement of living standards, elevator is more more and more universal, elevator is a kind of using motor as the vertical lift of power
Machine holds people or carrying cargo for tier building, serves the fixed type lifting equipment of regulation floor, bring easily to people
Service.Ladder control is a kind of elevator control technology, realizes the management to elevator by ladder control in daily life.
Currently, there are three types of the modes of ladder control, first, it can swipe the card through, permission limitation is carried out to the IC card that user holds,
User arrives at certain floor by the IC card of binding authority, does not need again extra key selection floor.Second, the open institute of brush IC card
There is the control of key, the floor key pressed within the set time, elevator reaches pressed floor.Third, elevator
Card reader is set outside the Room, and after user's brush IC card, elevator can be opened to the preset floor of the IC card.In addition, IC card makes
With before, or after ladder controls system upgrade, IC card is required to the administrative departments such as property and is authorized again to it, licensing process
It is middle to need then authorized order to be written in IC card by PC machine, in writer access PC machine to complete the authorization to IC card.
It is swiped the card using IC card and takes the premise of elevator and be, it is necessary to assure IC card is carried, if forgetting to carry IC card
Or IC card has lost, then can not take elevator, cause inconvenience for user, practicability is lower.Also, when IC card needs weight
When new authorization, process is cumbersome, low efficiency.Therefore, it needs to design a kind of more convenient and fast terraced prosecutor formula.
Summary of the invention
This application provides a kind of, and the ladder based on two dimensional code controls method and system, passes through IC to solve user in the prior art
Card takes the convenience of elevator and the technical problem that practicability is lower.
In order to solve the above-mentioned technical problem, the embodiment of the present application discloses following technical solution:
In a first aspect, the embodiment of the present application discloses a kind of terraced prosecutor method based on two dimensional code, it is pre- in background management platform
Equipped with Standard User information, which comprises
Mobile terminal generates corresponding two dimensional code according to user right；
The scanning recognition module of ladder control reads the two dimensional code, obtains the user right, and the user right is sent out
It send to cloud communication module；
The user right is pushed to the background management platform, the background management platform pair by the cloud communication module
The user right is parsed, and user information corresponding with the user right is obtained；
If the user information matches with the Standard User information, the background management platform, which generates to open, to be referred to
It enables, and the open command is transmitted to corresponding floor in ladder control and controls relay.
Optionally, in the terraced prosecutor method above-mentioned based on two dimensional code, mobile terminal generates corresponding two according to user right
Tie up code, comprising:
The mobile terminal obtains Standard User letter corresponding with the user right from the background management platform
Breath, the Standard User information include geographical location, equipment number, device numbering, floor number and timestamp in permission；
The Standard User information is combined and is encrypted, extraction obtains corresponding two dimensional code.
Optionally, in the terraced prosecutor method above-mentioned based on two dimensional code, mobile terminal generates corresponding two according to user right
Tie up code, further includes:
The mobile terminal requests to send two dimensional code to the background management platform；
The background management platform detects whether the mobile terminal links internet；
If so, the mobile terminal generates dynamic two-dimension code, if it is not, then the background management system is whole to the movement
End pushes fixed two dimensional code.
Optionally, in the terraced prosecutor method above-mentioned based on two dimensional code, the scanning recognition module of ladder control reads the two dimensional code,
Obtain the user right, comprising:
The two dimensional code is read using the scanning recognition module, the scanning recognition module is that GM65 bidimensional image formula is swept
Retouch identification module；
The two dimensional code is converted to the user right by the scanning recognition module, and the user right is hexadecimal
Code.
Optionally, in the terraced prosecutor method above-mentioned based on two dimensional code, if the user information and the Standard User information
Match, then the background management platform generates open command, and the open command is transmitted to corresponding floor in ladder control
Control relay, comprising:
According to the user information, the background management platform is judged, the judgement includes: the geographical location of user
Whether eligible, whether the user has the permission into ladder control, and whether the floor information of the user is correct, and described two
Whether the timestamp tieed up in code is expired；
If the judgement all passes through, the open command that the background management platform generates, and by the unlatching
Instruction is transmitted to corresponding floor control relay in ladder control.
Optionally, corresponding in the open command to be transmitted to ladder control in the terraced prosecutor method above-mentioned based on two dimensional code
Floor control relay after, the method also includes:
If the corresponding floor is opened successfully, opening imformation is generated, and utilize cloud communication module by the opening imformation
It is sent to the background management platform, the background management platform records the opening imformation.
Second aspect, the embodiment of the present application disclose a kind of terraced control system based on two dimensional code, the system comprises: it is mobile
Terminal, background management platform, ladder control plate and several floors control relay, in which:
The communication of mobile terminal is connected to the background management platform, and for generating corresponding two according to user right
Tie up code；
The ladder control plate includes: scanning recognition module and cloud communication module, and the scanning recognition module is logical by the cloud
News module is communicatively coupled to the background management platform, and the scanning recognition module obtains and institute for reading the two dimensional code
State the corresponding user right of two dimensional code；
Several floor control relays are communicatively coupled to the background management platform, institute by the cloud communication module
Background management platform is stated for parsing to obtain user information according to the user right, and several according to the user information control
The floor controls relay.
Optionally, in the terraced control system above-mentioned based on two dimensional code, the two dimensional code display interface of the mobile terminal includes 4
A two dimensional code.
Optionally, in the terraced control system above-mentioned based on two dimensional code, the ladder control plate further includes IC identification module, the IC
Identification module is communicatively coupled to several floor control relays.
Optionally, in the terraced control system above-mentioned based on two dimensional code, the cloud communication module is embedded GPRS232-7S3
Module.
Compared with prior art, the application has the beneficial effect that
This application provides a kind of, and the ladder based on two dimensional code controls method and system, and standard is preset in background management platform
User information, if administrative staff can directly operate background management platform, carry out repairing for related data information after ladder control system upgrade
Change, ladder control upgrading efficiency greatly improves.The described method includes: mobile terminal generates corresponding two dimensional code according to user right, move
The two dimensional code is directed at scanning recognition module in ladder control by dynamic holder terminal, and scanning recognition module reads the two dimensional code, obtains
To user right corresponding with the two dimensional code.The user right pushes to the back-stage management by cloud communication module and puts down
Platform, the background management platform parse the user right, obtain user information corresponding with the user right.If according to
The user information that the two dimensional code obtains preset Standard User information phase in background management platform with the user
Match, then the background management platform generates open command, and the open command is transmitted to corresponding floor in ladder control and is controlled
Relay.Using the terraced prosecutor method in the application, without carrying IC card, practicability is improved, and interim when there is visitor to come,
The mobile terminal two dimensional code generated that oneself is carried can be shared with visitor by user, and visitor can be in the validity period of the two dimensional code
It in limit, voluntarily takes elevator and reaches designated floor, user can share authorization boarding, without downstairs meeting in person.When ladder control system
When system needs to upgrade, it need to only upgrade in permission of the background management platform to IC card, ladder control hardware will upgrade automatically, this Shen
Please compared with the existing technology for, it is more convenient, practical.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
The application can be limited.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the application, letter will be made to attached drawing needed in the embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without creative efforts, also
Other drawings may be obtained according to these drawings without any creative labor.
Fig. 1 is a kind of flow diagram of the terraced prosecutor method based on two dimensional code provided in an embodiment of the present invention；
Fig. 2 is a kind of basic structure schematic diagram of the terraced control system based on two dimensional code provided in an embodiment of the present invention；
Description of symbols: 1, mobile terminal；2, background management platform；3, ladder control plate；31, scanning recognition module；32, cloud
Communication module；33, IC identification module；4, several floors control relay.
Specific embodiment
In order to make those skilled in the art better understand the technical solutions in the application, below in conjunction with the application reality
The attached drawing in example is applied, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described implementation
Example is only some embodiments of the present application, rather than whole embodiments.Based on the embodiment in the application, the common skill in this field
The application protection all should belong in art personnel every other embodiment obtained without making creative work
Range.
Terraced prosecutor method in the application based on two dimensional code, is preset with Standard User information in background management platform first,
The Standard User information includes geographical location, equipment number, device numbering and floor number etc. in permission, for example,
Geographical location is cell where user, and equipment number is that the user possesses several suite of rooms in affiliated subdistrict in permission, tool
Body has the permission for taking which elevator, and device numbering is the number of the taken elevator of the user, and floor number is the use
The affiliated floor in family.It is a kind of flow diagram of the terraced prosecutor method based on two dimensional code provided in an embodiment of the present invention referring to Fig. 1.
In conjunction with Fig. 1, the described method comprises the following steps:
Step S110: mobile terminal generates corresponding two dimensional code according to user right；
In the application, user's hand-held mobile terminal, Xiang Suoshu background management platform obtains corresponding with the user right
Standard User information, the Standard User information includes geographical location, equipment number, device numbering, floor number in permission
And timestamp, the Standard User information are used for the judgement of background management platform.By geographical location in the standard information,
Equipment number, device numbering, floor number etc. judge whether the user is the owner of the cell and specifically lives in permission
Unit floor etc., the timestamp in the Standard User information, it can be shown that a data before some specific time
Through data that are existing, complete, can verify that, usually a character string, the time at certain a moment is uniquely identified, the time
Stamp enables to the elevator ride request to have timeliness.After getting Standard User information, it is being combined and is being added
Close, extraction obtains corresponding two dimensional code.Wherein, the mobile terminal may include mobile phone, notebook, tablet computer etc., user
Corresponding APP or small routine etc. can be logged in by mobile terminal obtains two dimensional code.
In order to further optimize the above technical scheme, mobile terminal is according to user right, when generating corresponding two dimensional code,
Further include: the mobile terminal requests to send two dimensional code to the background management platform, and background management platform receives the request
Afterwards, detect whether the mobile terminal links internet.If the mobile terminal can be linked to internet, and network-like
State is good, then the mobile terminal can generate dynamic two-dimension code, which has timeliness.If described mobile whole
End can not be linked to internet or network state is very poor, then can not generate dynamic two-dimension code, at this time the background management system
Detect that the mobile terminal in a short time without generating two dimensional code, then pushes fixed two dimensional code to the mobile terminal.It is logical
Aforesaid operations are crossed, the practicability of terraced prosecutor method in the application is further improved.
Step S120: the scanning recognition module of ladder control reads the two dimensional code, obtains the user right, and by the use
Family permission is sent to cloud communication module；
The two dimensional code is read using the scanning recognition module, the scanning recognition module is that GM65 bidimensional image formula is swept
Retouch identification module, the GM65 bidimensional image formula scanning recognition module is low in energy consumption, operating current be less than 150mA, integrated design,
Small volume, in addition, its image-type scanning technique for including can be suitable for a variety of application environments, can omnidirectional scan the two-dimensional code
Or bar code, and being capable of sensitive identification label bar code and screen display label etc..The scanning recognition module is by described two
Dimension code is converted to the user right, and the user right is heuristicimal code.
Step S130: the user right is pushed to the background management platform, the backstage by the cloud communication module
Management platform parses the user right, obtains user information corresponding with the user right；
Step S140: if the user information matches with the Standard User information, the background management platform is raw
At open command, and the open command is transmitted to corresponding floor in ladder control and controls relay.
According to being resolved to obtain the user information, user information that the background management platform obtains parsing and default
Standard User information be compared judgement, the judgement includes: whether the geographical location of the user eligible, that is, is parsed
Whether cell where obtained user and cell where preset user are consistent；Whether the user has the power into ladder control
Limit, that is, whether the user's elevator taken parsed and the elevator that preset user can take are consistent；The user
Floor information it is whether correct, that is, whether the affiliated floor of the user being resolved to and the affiliated floor of preset user consistent；When described
Between whether expired stab, that is, judge elevator ride request whether in effective time limit.
If above-mentioned judgement all passes through, illustrate that the user has the permission for taking elevator, then the back-stage management is flat
Platform sends open command and is transmitted to corresponding floor control relay in ladder control, controls elevator and lights related floor.
In addition, the open command is transmitted in ladder control after corresponding floor control relay, the method is also wrapped
It includes: if the corresponding floor is opened successfully, generating opening imformation, and be sent to the opening imformation using cloud communication module
The background management platform, the background management platform record the opening imformation.In this way, user is multiplied using two dimensional code
The behavioral datas such as the time of elevator are sat, background management platform is recorded in, is used convenient for later period investigation, monitors elevator in real time
Take situation.
Terraced prosecutor method in the application, without carrying IC card, practicability is improved, and interim when there is visitor to come, and is used
The mobile terminal two dimensional code generated that family can carry oneself is shared with visitor by short message or wechat etc., and visitor can be
In the term of validity of the two dimensional code, voluntarily takes elevator and reach designated floor, user can share authorization boarding, under in person
It meets in building.When terraced control system needs to upgrade, only staff is needed to configure in background management platform to software, hardware
Follow software upgrading, the application compared with the existing technology for, it is more convenient, practical.
Based on the same technical idea, the terraced control system based on two dimensional code that the embodiment of the invention also provides a kind of.Fig. 2 is
The basic structure schematic diagram of a kind of terraced control system based on two dimensional code provided in an embodiment of the present invention, as shown in Fig. 2, the system
It include: mobile terminal 1, background management platform 2, ladder control plate 3 and several floors control relay 4, in which:
The mobile terminal 1 is communicatively coupled to the background management platform 2, and corresponding for being generated according to user right
Two dimensional code；
The ladder control plate 3 includes: scanning recognition module 31 and cloud communication module 32, and the scanning recognition module 31 passes through institute
It states cloud communication module 32 and is communicatively coupled to the background management platform 2, the scanning recognition module 31 is for reading the two dimension
Code, obtains user right corresponding with the two dimensional code；
Several floor control relays 4 are communicatively coupled to the background management platform by the cloud communication module 32
2, the background management platform 2 is used to be parsed to obtain user information according to the user right, and according to the user information control
Make several floor control relays 4.
Further, the two dimensional code display interface of the mobile terminal 1 includes 4 two dimensional codes.The display of mobile terminal 1
4 identical pattern in 2 D code are shown on interface simultaneously, as long as the scanning recognition module 31 on the ladder control plate 3 can recognize that
Effective information can be sent to background management platform 2 by cloud communication module 32 by any one pattern in 2 D code.Pass through increasing
If the interface of 4 identical pattern in 2 D code, barcode scanning distance, angle and the light filling effect of scanning recognition module 31 are optimized, it can be with
The display interface of the mobile terminal 1 of easily reading different contrast, color and degree of reflection.
In addition, the ladder control plate 3 further includes IC identification module 33, the IC identification module 33 is communicatively coupled to several described
Floor controls relay 4.In order to increase the control mode of terraced control system, user experience is further promoted, is controlled in the application in ladder
IC identification module 33 is also had additional in system, user can also take elevator by brush IC card.Certainly, in the application, in ladder control system
After system upgrading, it is not necessary to replace the IC card in owner's hand, need to only upgrade in permission of the background management platform to IC card, ladder control is hard
Part will upgrade automatically, save the working time of owner and property.
In the application, the cloud communication module 32 is embedded GPRS232-7S3 module.The cloud communication module 32 uses
The transparent transmissions such as compatible GPRS/WIFI, are connected in a manner of network Heartbeat packet and serial heartbeat packet with background management platform 2
It connects, pushes related data.Cloud communication module 32 also supports socket distribution protocol, after serial data is committed in a manner of http
Platform management platform 2 is simultaneously distributed to different socket (socket), and four road socket is also supported to link, and the link of four tunnels is mutually only
It is vertical.
Since embodiment of above is that reference combination is illustrated on other modes, have between different embodiments
There is identical part, identical, similar part may refer to each other between each embodiment in this specification.Herein no longer in detail
It illustrates.
It should be noted that in the present specification, the relational terms of such as " first " and " second " or the like are used merely to
It distinguishes one entity or operation from another entity or operation, and not necessarily requires or imply these entities or operation
Between there are any this actual relationship or sequences.Moreover, the terms "include", "comprise" or its any other variant are intended to
Cover non-exclusive inclusion, so that the circuit structure, article or the equipment that include a series of elements not only include those
Element, but also including other elements that are not explicitly listed, or further include for this circuit structure, article or equipment
Intrinsic element.In the absence of more restrictions, the element for thering is sentence "including a ..." to limit, it is not excluded that
There is also other identical elements in circuit structure, article or equipment including the element.
Those skilled in the art will readily occur to its of the application after considering specification and practicing the disclosure invented here
His embodiment.This application is intended to cover any variations, uses, or adaptations of the invention, these modifications, purposes or
Person's adaptive change follows the general principle of the application and including the undocumented common knowledge in the art of the application
Or conventional techniques.The description and examples are only to be considered as illustrative, and the true scope and spirit of the application are wanted by right
The content asked is pointed out.
Above-described the application embodiment does not constitute the restriction to the application protection scope.
Claims (10)
1. a kind of terraced prosecutor method based on two dimensional code, which is characterized in that be preset with Standard User information, institute in background management platform
The method of stating includes:
Mobile terminal generates corresponding two dimensional code according to user right；
The scanning recognition module of ladder control reads the two dimensional code, obtains the user right, and the user right is sent to
Cloud communication module；
The user right is pushed to the background management platform by the cloud communication module, and the background management platform is to described
User right is parsed, and user information corresponding with the user right is obtained；
If the user information matches with the Standard User information, the background management platform generates open command, and
The open command is transmitted to corresponding floor control relay in ladder control.
2. the terraced prosecutor method according to claim 1 based on two dimensional code, which is characterized in that mobile terminal is weighed according to user
Limit, generates corresponding two dimensional code, comprising:
The mobile terminal obtains Standard User information corresponding with the user right, institute from the background management platform
Stating Standard User information includes geographical location, equipment number, device numbering, floor number and timestamp in permission；
The Standard User information is combined and is encrypted, extraction obtains corresponding two dimensional code.
3. the terraced prosecutor method according to claim 2 based on two dimensional code, which is characterized in that mobile terminal is weighed according to user
Limit, generates corresponding two dimensional code, further includes:
The mobile terminal requests to send two dimensional code to the background management platform；
The background management platform detects whether the mobile terminal links internet；
If so, the mobile terminal generates dynamic two-dimension code, if it is not, then the background management system is pushed away to the mobile terminal
Send fixed two dimensional code.
4. the terraced prosecutor method according to claim 1 based on two dimensional code, which is characterized in that the scanning recognition module of ladder control is read
The two dimensional code is taken, the user right is obtained, comprising:
The two dimensional code is read using the scanning recognition module, the scanning recognition module is that the scanning of GM65 bidimensional image formula is known
Other module；
The two dimensional code is converted to the user right by the scanning recognition module, and the user right is heuristicimal code.
5. the terraced prosecutor method according to claim 1 based on two dimensional code, which is characterized in that if the user information with it is described
Standard User information matches, then the background management platform generates open command, and the open command is transmitted to terraced control
In corresponding floor control relay, comprising:
According to the user information, the background management platform is judged, it is described judgement include: user geographical location whether
Eligible, whether the user has the permission into ladder control, and whether the floor information of the user is correct, the two dimensional code
In timestamp it is whether expired；
If the judgement all passes through, the open command that the background management platform generates, and by the open command
It is transmitted to corresponding floor control relay in ladder control.
6. the terraced prosecutor method according to claim 5 based on two dimensional code, which is characterized in that transmitted by the open command
Into ladder control after corresponding floor control relay, the method also includes:
If the corresponding floor is opened successfully, opening imformation is generated, and the opening imformation is sent using cloud communication module
To the background management platform, the background management platform records the opening imformation.
7. a kind of terraced control system based on two dimensional code, which is characterized in that the system comprises: mobile terminal, background management platform,
Ladder control plate and several floors control relay, in which:
The communication of mobile terminal is connected to the background management platform, and for generating corresponding two dimension according to user right
Code；
The ladder control plate includes: scanning recognition module and cloud communication module, and the scanning recognition module communicates mould by the cloud
Block is communicatively coupled to the background management platform, and the scanning recognition module obtains and described two for reading the two dimensional code
Tie up the corresponding user right of code；
Several floor control relays are communicatively coupled to the background management platform by the cloud communication module, after described
Platform management platform is used to parse to obtain according to the user right user information, and several described according to the user information control
Floor controls relay.
8. the terraced control system according to claim 7 based on two dimensional code, which is characterized in that the two dimensional code of the mobile terminal
Display interface includes 4 two dimensional codes.
9. the terraced control system according to claim 7 based on two dimensional code, which is characterized in that the ladder control plate further includes that IC knows
Other module, the IC identification module are communicatively coupled to several floor control relays.
10. the terraced control system according to claim 7 based on two dimensional code, which is characterized in that the cloud communication module is embedding
Enter formula GPRS232-7S3 module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910451603.6A CN110065858A (en) | 2019-05-28 | 2019-05-28 | A kind of ladder control method and system based on two dimensional code |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910451603.6A CN110065858A (en) | 2019-05-28 | 2019-05-28 | A kind of ladder control method and system based on two dimensional code |
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| CN110065858A true CN110065858A (en) | 2019-07-30 |
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| CN201910451603.6A Withdrawn CN110065858A (en) | 2019-05-28 | 2019-05-28 | A kind of ladder control method and system based on two dimensional code |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110626896A (en) * | 2019-08-26 | 2019-12-31 | 杭州优迈科技有限公司 | Elevator control method and system based on two-dimensional code |
| CN111646329A (en) * | 2020-04-15 | 2020-09-11 | 浙江科技学院 | Non-contact type residential elevator floor control method and system |
| CN112978526A (en) * | 2021-03-11 | 2021-06-18 | 归巢智慧科技(深圳)有限公司 | Access control method, device and system and elevator control method, device and system |
-
2019
- 2019-05-28 CN CN201910451603.6A patent/CN110065858A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110626896A (en) * | 2019-08-26 | 2019-12-31 | 杭州优迈科技有限公司 | Elevator control method and system based on two-dimensional code |
| CN111646329A (en) * | 2020-04-15 | 2020-09-11 | 浙江科技学院 | Non-contact type residential elevator floor control method and system |
| CN112978526A (en) * | 2021-03-11 | 2021-06-18 | 归巢智慧科技(深圳)有限公司 | Access control method, device and system and elevator control method, device and system |
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Application publication date: 20190730 |