CN110197560A - Automatic selling system based on Weighing module - Google Patents
Automatic selling system based on Weighing module Download PDFInfo
- Publication number
- CN110197560A CN110197560A CN201810156764.8A CN201810156764A CN110197560A CN 110197560 A CN110197560 A CN 110197560A CN 201810156764 A CN201810156764 A CN 201810156764A CN 110197560 A CN110197560 A CN 110197560A
- Authority
- CN
- China
- Prior art keywords
- server
- weighing module
- control module
- automatic selling
- weighing
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/40—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight
- G01G19/413—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight using electromechanical or electronic computing means
- G01G19/414—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight using electromechanical or electronic computing means using electronic computing means only
- G01G19/4144—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight using electromechanical or electronic computing means using electronic computing means only for controlling weight of goods in commercial establishments, e.g. supermarket, P.O.S. systems
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/40—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight
- G01G19/413—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight using electromechanical or electronic computing means
- G01G19/414—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight using electromechanical or electronic computing means using electronic computing means only
- G01G19/415—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight using electromechanical or electronic computing means using electronic computing means only combined with recording means
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07G—REGISTERING THE RECEIPT OF CASH, VALUABLES, OR TOKENS
- G07G1/00—Cash registers
- G07G1/0036—Checkout procedures
- G07G1/0045—Checkout procedures with a code reader for reading of an identifying code of the article to be registered, e.g. barcode reader or radio-frequency identity [RFID] reader
- G07G1/0054—Checkout procedures with a code reader for reading of an identifying code of the article to be registered, e.g. barcode reader or radio-frequency identity [RFID] reader with control of supplementary check-parameters, e.g. weight or number of articles
- G07G1/0072—Checkout procedures with a code reader for reading of an identifying code of the article to be registered, e.g. barcode reader or radio-frequency identity [RFID] reader with control of supplementary check-parameters, e.g. weight or number of articles with means for detecting the weight of the article of which the code is read, for the verification of the registration
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07G—REGISTERING THE RECEIPT OF CASH, VALUABLES, OR TOKENS
- G07G1/00—Cash registers
- G07G1/01—Details for indicating
- G07G1/06—Details for indicating with provision for the noting of the money to be paid
Abstract
The automatic selling system based on Weighing module that the invention discloses a kind of, including mobile terminal, server and sales counter, control module and Weighing module are provided in the sales counter, the Weighing module is equipped with pallet and is weighed in real time, is provided with electronic lock on the sales counter；The mobile terminal is used to send request of opening the door to server；The server receives and sends unlocking signal to control module after request signal；The signal that shuts for cabinet door of selling goods is sent to control module by the electronic lock；The control module is by unlocking signal and shuts signal and is sent to server；The control module receives the weighing data of each Weighing module and is sent to server.The present invention meets the automatic selling demand of different commodity, opens the door by self-service barcode scanning or by bio-identification, identifies institute's picking object by weight change after shutdown and completes to sell goods, and it is accurate convenient to have the advantages that；It is not necessarily to RFID label tag consumptive material during later period operation, to substantially reduce operation cost.
Description
Technical field
The present invention relates to a kind of automatic selling device more particularly to a kind of automatic selling systems based on Weighing module.
Background technique
With the continuous development of artificial intelligence and mobile payment, automatic vending machine using more more and more universal.It is existing from
Dynamic vending machine has a variety of electronic payment functions, such as credit card, stored value card and mobile phone card bankcard consumption or wechat, payment
The payment of the barcode scannings such as treasured.In addition, existing automatic vending machine uses LED display, multi-media display technology, automatic vending machine system
System with PC system docking, so that consumer is chosen the commodity of vending machine by the touch screen that PC control, not only substitution select goods by
Key, and make vending machine that there is media function.And the data for currently runing automatic vending machine are convenient to, including system shape
State, the system failure, material path failure, situation out of stock, sales data are transferred to by the communication module being mounted on automatic vending machine
Vending machine network server, operation personnel can grasp these information of vending machine on the computer of any one networking, realize
The extensive operation of automatic vending machine and network management.
But existing vending machine is mainly paid and information networking has carried out a large amount of improvement, and to cabinet body and take object space formula
Still there is larger limitation, it is general that shipment is carried out by taking mouth, largely effect on the convenience and user experience of shopping.Especially weigh
The case that function is used in intelligent commodity shelf is seldom, and up to the present also no batch does not occur.The self-service of more commodity is unable to satisfy to sell
Goods demand, for example need the beverage class commodity, irregular snacks, food in bulk (fruit) of penetration power.
Summary of the invention
The automatic selling system based on Weighing module that technical problem to be solved by the invention is to provide a kind of, can satisfy
The automatic selling demand of various difference commodity, opens the door by self-service barcode scanning or by bio-identification, passes through weight change after shutdown
Identification institute's picking object simultaneously is completed to sell goods, and it is accurate convenient to have the advantages that, and can substantially reduce operation cost.
The present invention is to solve above-mentioned technical problem and the technical solution adopted is that provide a kind of based on the self-service of Weighing module
Vending system, including mobile terminal, server and sales counter are provided with control module and Weighing module in the sales counter, institute
It states Weighing module to be weighed in real time equipped with pallet, is provided with electronic lock on the sales counter；The mobile terminal is for giving
Server sends request of opening the door；The server receives and sends unlocking signal to control module after request signal；The electronics
Shut signal of the lock for the cabinet door that will sell goods is sent to control module；The control module receives the unlocking signal from server
With the signal that shuts from electronic lock, and by unlocking signal and shuts signal and be sent to server；The control module receives every
The weighing data of a Weighing module is simultaneously sent to server.
The above-mentioned automatic selling system based on Weighing module a, wherein electronics is respectively arranged in the sales counter upper and lower
Lock, and two electronic lock synchronous opening/closings.
The above-mentioned automatic selling system based on Weighing module, wherein two dimensional code or biology are provided on the sales counter
Characteristic collector, the physical characteristics collecting device acquisition face characteristic, fingerprint characteristic, palm print characteristics, iris feature or sound wave are special
Sign identifies user.
The above-mentioned automatic selling system based on Weighing module, wherein the control module calculates the weight of commodity in counter
Amount changes corresponding commodity amount, and calculates spending amount according to cargo price.
The above-mentioned automatic selling system based on Weighing module, wherein the control module passes through network attached server,
The corresponding commodity amount of weight change of commodity in sales counter is calculated by server, and consumption gold is calculated according to cargo price
Volume.
The above-mentioned automatic selling system based on Weighing module, wherein the Weighing module is electronic scale, the electronic scale
Top be provided with metal plate frame as pallet, the electronic scale real-time display cargo price and this spending amount.
The above-mentioned automatic selling system based on Weighing module, wherein the sales counter is equipped with electronic display, is used for
This commodity, quantity and spending amount for being taken is shown after counter shutdown.
The present invention comparison prior art has following the utility model has the advantages that the automatic selling provided by the invention based on Weighing module
System can satisfy the automatic selling demand of various different commodity, open the door by self-service barcode scanning or by bio-identification, after shutdown
Institute's picking object is identified by weight change and completes to sell goods, and it is accurate convenient to have the advantages that；In addition, being not necessarily to during later period operation
RFID label tag consumptive material, to substantially reduce operation cost.
Detailed description of the invention
Fig. 1 is the automatic selling system architecture schematic diagram of the invention based on Weighing module；
Fig. 2 is the process of exchange schematic diagram of Weighing type Intelligent cargo cabinet of the present invention.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the automatic selling system architecture schematic diagram of the invention based on Weighing module.
Referring to Figure 1, the automatic selling system provided by the invention based on Weighing module, including mobile terminal, server
And sales counter, be provided with control module and Weighing module in the sales counter, the Weighing module be equipped with pallet carry out it is real-time
It weighs, is provided with electronic lock on the sales counter；The mobile terminal is used to send request of opening the door to server；The server
It receives and sends unlocking signal to control module after request signal；The electronic lock shuts signal transmission for the cabinet door that will sell goods
To control module；The control module receives the unlocking signal from server and shuts signal from electronic lock, and will open
It lock signal and shuts signal and is sent to server；The control module receives the weighing data of each Weighing module and is sent to clothes
Business device.
The present invention identifies commodity with weighing technology, opens the door with the payment modes such as barcode scanning or bio-identification, use
Family enabling request be sent to server, then unlocking information is sent to main control module again by server, after enabling user every time from
It takes and (puts down) on counter thing, gravity (pressure) sensor detects weight change immediately, and forms a record (authorization is used
Family when which goods to how much quantity of taking commodity) it is locally-stored, user, which closes the door, means the end specifically done shopping,
Locally-stored information is issued server, the data knot that server is acquired by control module by communication module by control module
Calculate this shopping amount of money.It is in simple terms exactly the change that commodity amount on shelf is identified by gravity sensor real time monitoring
Change.In whole process, user only needs to issue purchase request by mobile device, realizes autonomous shopping, shopping is saved, after shutdown
Just pass through backstage Automatic-settlement spending amount.
Automatic selling system provided by the invention based on Weighing module, the Weighing module are electronic scale, the electronics
Pair metal plate frame is provided with above scale as pallet, the electronic scale real-time display cargo price and this spending amount, i.e.,
For user, Weighing module is exactly a meter.In addition, the sales counter be equipped with electronic display, electronic display by
Control module control, for showing this commodity, quantity and spending amount for being taken after counter is closed the door, and can pass through
Server changes price.
It further include raising of being controlled by control module in addition, the automatic selling system provided by the invention based on Weighing module
Sound device is used to voice broadcast.Electronic lock is controlled by control module, and own has signaling module, it can be the hair of the state of lock
To control module.For the sake of security, one electronic lock respectively can be set in counter upper and lower, and it is same to control two electronic locks up and down
Step opening and closing；On the one hand, can be poor to avoid the leakproofness of cabinet door lower part, lead to not the problem of locking；On the other hand, if one
Electronic lock is broken, and another can continue that counter is avoided to lose anti-theft.
Automatic selling system provided by the invention based on Weighing module is examined after each counter is closed the door using Weighing module
The weight change for surveying commodity in counter determines this commodity for being taken of the authorized user and its quantity；Control module can be passed through
The corresponding commodity amount of weight change of commodity in counter is directly calculated, and spending amount is calculated according to cargo price；Or
Control module calculates the corresponding quotient of weight change of commodity in counter by background server by network connection background server
Product quantity, and spending amount is calculated according to cargo price.
Automatic selling system provided by the invention based on Weighing module is provided with two dimensional code or biology on the sales counter
Characteristic collector, the physical characteristics collecting device acquisition face characteristic, fingerprint characteristic, palm print characteristics, iris feature or sound wave are special
Sign identifies user.
In addition, the automatic selling system provided by the invention based on Weighing module, it is additionally provided on the sales counter for real
When capture the camera of current shopping user.When two kinds of same or similar commodity of weight are put in the support above same Weighing module
When on disk, takes the mixed state for putting commodity in advance by camera and shoot the commodity on the pallet again after user takes object to close the door
Photo is compared, so that it is determined that the commodity that user is finally taken.The sales counter is equipped with electronic display, in counter
This commodity, quantity and spending amount for being taken is shown after shutdown.The electronic display shows in counter door opening state and takes the photograph
As the current shopping user that head is captured, the shopping process of user can be not only taken (including selecting the processes of commodity, micro- expression
Variation etc.), while monitoring function can also be played.
In order to further enhance the shopping experience of user, the automatic selling system provided by the invention based on Weighing module,
If further include within a preset time, it is adjacent carry out twice open the door take object user be same authorized user；It closes the door in sales counter
Afterwards, detect that the weight of commodity in counter increases using Weighing module, and the increased weight of commodity and the authorized user
The identical then automatic carry out handling return of the weight for the commodity that last time is taken, to better solve the trouble and worry of user.
Automatic selling system provided by the invention based on Weighing module, select a certain mode open the door (Alipay barcode scanning,
Bio-identification etc.), user takes thing from counter, and gravity (pressure) sensor detects weight change, and backstage determines rapidly
The commodity and its quantity taken away and the corresponding relationship for setting up user and commodity simultaneously calculate after sensing that user closes the door
This time spending amount.It is in simple terms exactly to identify that commodity amount changes on pallet by gravity sensor real time monitoring, entirely
Process of exchange is as shown in Fig. 2, to greatly promote the convenience of the accuracy and shopping sold goods.
Although the present invention is disclosed as above with preferred embodiment, however, it is not to limit the invention, any this field skill
Art personnel, without departing from the spirit and scope of the present invention, when can make a little modification and perfect therefore of the invention protection model
It encloses to work as and subject to the definition of the claims.
Claims (7)
1. a kind of automatic selling system based on Weighing module, which is characterized in that including mobile terminal, server and sales counter,
Control module and Weighing module are provided in the sales counter, the Weighing module is equipped with pallet and is weighed in real time, described
Electronic lock is provided on sales counter；The mobile terminal is used to send request of opening the door to server；The server, which receives, asks
It asks and sends unlocking signal to control module after signal；Shut signal of the electronic lock for the cabinet door that will sell goods is sent to control mould
Block；The control module receives unlocking signal from server and shuts signal from electronic lock, and by unlocking signal and
It shuts signal and is sent to server；The control module receives the weighing data of each Weighing module and is sent to server.
2. the automatic selling system based on Weighing module as described in claim 1, which is characterized in that the sales counter upper and lower
Each setting one is electronic lock, and two electronic lock synchronous opening/closings.
3. the automatic selling system based on Weighing module as described in claim 1, which is characterized in that be arranged on the sales counter
There are two dimensional code or physical characteristics collecting device, the physical characteristics collecting device acquires face characteristic, fingerprint characteristic, palm print characteristics, rainbow
Film feature or acoustic characteristic identify user.
4. the automatic selling system based on Weighing module as described in claim 1, which is characterized in that the control module calculates
The corresponding commodity amount of the weight change of commodity in counter, and spending amount is calculated according to cargo price.
5. the automatic selling system based on Weighing module as described in claim 1, which is characterized in that the control module passes through
Network attached server calculates the corresponding commodity amount of weight change of commodity in sales counter by server, and according to commodity
Unit price calculates spending amount.
6. the automatic selling system based on Weighing module as described in claim 1, which is characterized in that the Weighing module is electricity
Sub- scale, metal plate frame is provided with above the electronic scale as pallet, the electronic scale real-time display cargo price and this
Spending amount.
7. the automatic selling system based on Weighing module as described in claim 1, which is characterized in that the sales counter is equipped with
Electronic display, for showing this commodity, quantity and spending amount for being taken after counter is closed the door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810156764.8A CN110197560A (en) | 2018-02-24 | 2018-02-24 | Automatic selling system based on Weighing module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810156764.8A CN110197560A (en) | 2018-02-24 | 2018-02-24 | Automatic selling system based on Weighing module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110197560A true CN110197560A (en) | 2019-09-03 |
Family
ID=67744042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810156764.8A Pending CN110197560A (en) | 2018-02-24 | 2018-02-24 | Automatic selling system based on Weighing module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110197560A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111354128A (en) * | 2020-02-26 | 2020-06-30 | 深圳市大白菜科技有限公司 | Self-service sale method, device, equipment and computer readable storage medium |
| CN111807004A (en) * | 2020-06-28 | 2020-10-23 | 东风商用车有限公司 | Weight induction-based bolt mistaken-fetching-preventing storage system |
| CN112529500A (en) * | 2020-12-16 | 2021-03-19 | 石家庄邮电职业技术学院(中国邮政集团有限公司培训中心) | Intelligent shelf system for supermarket |
| CN113611041A (en) * | 2021-07-19 | 2021-11-05 | 澳柯玛股份有限公司 | Weighing unmanned sales counter equipment, sales method thereof and unmanned sales system |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102024297A (en) * | 2009-09-16 | 2011-04-20 | 精工爱普生株式会社 | Store surveillance system, warning device, control method for a store surveillance system, and a program |
| CN105427459A (en) * | 2014-09-17 | 2016-03-23 | 黄浩庭 | Self-help vending method and vending machine |
| CN105931371A (en) * | 2016-07-12 | 2016-09-07 | 帮团成都电子商务有限责任公司 | Vending machine and vending method |
| CN205722151U (en) * | 2016-04-06 | 2016-11-23 | 上海英内物联网科技股份有限公司 | A kind of self-selecting type Intelligent vending machine with face identification functions |
| CN107067548A (en) * | 2017-05-27 | 2017-08-18 | 李丙军 | A kind of automatically vending system and its method |
| CN107195091A (en) * | 2017-06-23 | 2017-09-22 | 中山市思迈尔智能科技有限公司 | A kind of automatic vending machine and its method of work |
| CN107203906A (en) * | 2017-05-22 | 2017-09-26 | 郑州云海信息技术有限公司 | Supermarket shopping self-service query and checkout system based on cloud computing |
| CN107274555A (en) * | 2017-06-06 | 2017-10-20 | 深圳正品创想科技有限公司 | Automatic vending method, apparatus and system |
| CN107301538A (en) * | 2017-07-12 | 2017-10-27 | 杨智勇 | The intelligent payment method of merchandise sales is realized based on short-term resting space |
| CN107330684A (en) * | 2017-07-06 | 2017-11-07 | 广州联业商用机器人科技股份有限公司 | A kind of intelligent unmanned shop of management and control in high in the clouds and its automatic settlement method |
-
2018
- 2018-02-24 CN CN201810156764.8A patent/CN110197560A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102024297A (en) * | 2009-09-16 | 2011-04-20 | 精工爱普生株式会社 | Store surveillance system, warning device, control method for a store surveillance system, and a program |
| CN105427459A (en) * | 2014-09-17 | 2016-03-23 | 黄浩庭 | Self-help vending method and vending machine |
| CN205722151U (en) * | 2016-04-06 | 2016-11-23 | 上海英内物联网科技股份有限公司 | A kind of self-selecting type Intelligent vending machine with face identification functions |
| CN105931371A (en) * | 2016-07-12 | 2016-09-07 | 帮团成都电子商务有限责任公司 | Vending machine and vending method |
| CN107203906A (en) * | 2017-05-22 | 2017-09-26 | 郑州云海信息技术有限公司 | Supermarket shopping self-service query and checkout system based on cloud computing |
| CN107067548A (en) * | 2017-05-27 | 2017-08-18 | 李丙军 | A kind of automatically vending system and its method |
| CN107274555A (en) * | 2017-06-06 | 2017-10-20 | 深圳正品创想科技有限公司 | Automatic vending method, apparatus and system |
| CN107195091A (en) * | 2017-06-23 | 2017-09-22 | 中山市思迈尔智能科技有限公司 | A kind of automatic vending machine and its method of work |
| CN107330684A (en) * | 2017-07-06 | 2017-11-07 | 广州联业商用机器人科技股份有限公司 | A kind of intelligent unmanned shop of management and control in high in the clouds and its automatic settlement method |
| CN107301538A (en) * | 2017-07-12 | 2017-10-27 | 杨智勇 | The intelligent payment method of merchandise sales is realized based on short-term resting space |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111354128A (en) * | 2020-02-26 | 2020-06-30 | 深圳市大白菜科技有限公司 | Self-service sale method, device, equipment and computer readable storage medium |
| CN111807004A (en) * | 2020-06-28 | 2020-10-23 | 东风商用车有限公司 | Weight induction-based bolt mistaken-fetching-preventing storage system |
| CN112529500A (en) * | 2020-12-16 | 2021-03-19 | 石家庄邮电职业技术学院(中国邮政集团有限公司培训中心) | Intelligent shelf system for supermarket |
| CN113611041A (en) * | 2021-07-19 | 2021-11-05 | 澳柯玛股份有限公司 | Weighing unmanned sales counter equipment, sales method thereof and unmanned sales system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105931371B (en) | Automatic vending machine and automatic vending method | |
| CN206546607U (en) | A kind of automatic vending machine and retail kiosk | |
| CN110197560A (en) | Automatic selling system based on Weighing module | |
| CN108875664A (en) | Recognition methods, device and the vending machine of selective purchase | |
| CN205788499U (en) | Automatic vending machine | |
| CN110197240A (en) | The control method of unmanned Weighing type sales counter based on image recognition | |
| US20130284806A1 (en) | Automated purchasing system | |
| CN107374177A (en) | It is a kind of have sell goods, share and the Multifunctional demonstration system and method for transfer | |
| CN206179114U (en) | Commodity lease machine | |
| CN108510024A (en) | Unmanned retail Intelligent cargo cabinet based on RFID technique and its good selling method | |
| CN203084827U (en) | Intelligent interactive experience self-help vending machine | |
| CN106710071A (en) | Vending system with function of radio-frequency chip recognition | |
| CN208172900U (en) | A kind of intelligence sales counter | |
| CN107886655A (en) | The generation method that should be paid one's bill, the matching process that should be paid one's bill and pay one's bill | |
| CN107833368A (en) | Automatic selling cabinet and its application method | |
| CN108416908A (en) | A kind of pattern recognition device of weighing for automatic vending machine | |
| CN107590926A (en) | A kind of unattended marketing system | |
| CN108922029A (en) | Vending equipment and its control method | |
| CN110164032A (en) | Automatic vending machine and its data processing method and automatically vending system | |
| CN109405879A (en) | A kind of Intelligent unattended vending system and commodity recognition method | |
| CN109712319A (en) | A kind of intelligence retail cabinet and its operation method based on weighing and visual identity | |
| CN109377657A (en) | A kind of Vending Machine and its operation method | |
| CN108447197A (en) | Merchandise sales control method, merchandise sales terminal and system | |
| CN207895558U (en) | A kind of vending machine with dual identification function | |
| CN109993891A (en) | The control method of Weighing type Intelligent cargo cabinet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190903 |
|
| WD01 | Invention patent application deemed withdrawn after publication |