CN108402570A - A kind of intelligent safety helmet based on NB-IOT - Google Patents
A kind of intelligent safety helmet based on NB-IOT Download PDFInfo
- Publication number
- CN108402570A CN108402570A CN201810158279.4A CN201810158279A CN108402570A CN 108402570 A CN108402570 A CN 108402570A CN 201810158279 A CN201810158279 A CN 201810158279A CN 108402570 A CN108402570 A CN 108402570A
- Authority
- CN
- China
- Prior art keywords
- sensor
- iot
- cap
- chin
- detection
- 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
-
- A—HUMAN NECESSITIES
- A42—HEADWEAR
- A42B—HATS; HEAD COVERINGS
- A42B1/00—Hats; Caps; Hoods
- A42B1/24—Hats; Caps; Hoods with means for attaching articles thereto, e.g. memorandum tablets or mirrors
- A42B1/242—Means for mounting detecting, signalling or lighting devices
-
- A—HUMAN NECESSITIES
- A42—HEADWEAR
- A42B—HATS; HEAD COVERINGS
- A42B1/00—Hats; Caps; Hoods
- A42B1/04—Soft caps; Hoods
- A42B1/08—Soft caps; Hoods with protection against blows
-
- A—HUMAN NECESSITIES
- A42—HEADWEAR
- A42B—HATS; HEAD COVERINGS
- A42B1/00—Hats; Caps; Hoods
- A42B1/24—Hats; Caps; Hoods with means for attaching articles thereto, e.g. memorandum tablets or mirrors
- A42B1/245—Means for mounting audio or communication systems
Landscapes
- Helmets And Other Head Coverings (AREA)
Abstract
The present invention provides a kind of intelligent safety helmet based on NB IOT, wherein, the intelligent safety helmet includes safety cap, neck sensor detection module, chin sensor detection module and main circuit module, and wherein main circuit module includes main MCU, GPS positioning module, 3-axis acceleration detection circuit, pressure altitude detection circuit, NB IOT data communications circuit, micro-processor interface circuit, charging observation circuit, lithium battery.The present invention has the advantages such as simple in structure, highly practical, of low cost, can be configured by customer demand, operating personnel can be reminded correctly to wear, fall alarm, GPS positioning, base station location, provide a kind of solution of remote monitoring and administration.
Description
Technical field
The present invention relates to a kind of protective gear more particularly to a kind of production safety field intelligence labour protection products, specifically
For be a kind of intelligent safety helmet and intelligent helmet system.
Background technology
Conventional security cap only serves the effect of protection, when operating personnel is in building site work or working at height, according to
Operating regulation be need safe wearing cap, but many operating personnels often not safe wearing cap or when wearing a safety helmet not buckleing
Band is buckled, and when work in this way, brings many security risks to on-site personnel, and cannot have as safety manager
Effect ground remote monitoring Field Force, great risk is brought to operating personnel and company management.
Invention content
The present invention is directed to the deficiency of conventional security cap, provides a kind of simple in structure, practicability, of low cost, can be by client
Demand configure, operating personnel can be reminded correctly to wear, fall alarm, GPS positioning, base station location and realize remote monitoring pipe
The solution of reason.
To solve the above problems, the present invention is achieved by the following technical solutions；
A kind of intelligent safety helmet based on NB-IOT comprising safety cap, neck sensor detection module, chin sensor
Detection module and main circuit module, wherein main circuit module include main MCU, GPS positioning module, 3-axis acceleration detection circuit,
Pressure altitude detection circuit, NB-IOT data communications circuit, micro-processor interface circuit, charging observation circuit, lithium battery.
3-axis acceleration detection circuit and air pressure height detection circuit are used for detection operation personnel's motion state.For example, making
Static or ambulatory status when industry personnel's normal operation passes through 3-axis acceleration if operating personnel unfortunately falls from eminence
The abnormal data that detection circuit and air pressure height detection circuit detect realizes alarm.
GPS positioning module is used for monitoring results personnel's geographical location information.The position of operating personnel can weigh work
Progress, and realize positioning when long-range not the station the case where of staff monitors and crisis situations occur, it realizes timely
Rescue.
NB-IOT data communications circuit will periodically or promptly upload current work personnel location information, Sensor monitoring information
With the base station location information of acquisition.
Voice and light prompt function, warning function are realized with voice+LED alarm modules.
Neck sensor detection module is mounted on the inner wall of safety cap head, for detecting whether safe wearing cap.Work as pendant
When wearing a safety helmet, neck sensor, which can detect, blocks signal, and when non-safe wearing cap, neck sensor, which can't detect, blocks letter
Number.
Chin sensor detection module is mounted on the position of safety cap cingulum chin, for detecting whether safety cap cingulum is buckled
Tightly.
When operating personnel does not fasten safety cap cingulum, chin sensor detection module detects that wearing is abnormal, will send out
Audio alert prompts operating personnel to fasten the cingulum of safety cap in time.
Main MCU microprocessor modules are used for controlling the data detected with receiving sensor, by analyzing the data of detection, association
Reason voice and LED alarm modules are mediated, control NB-IOT modules send and receive data.
Neck sensor detection module and chin sensor detection module use photo-electric proximity sensor, neck sensor
Detection module is located at neck location detection, and chin sensor detection module is located at lower volume location detection, is judged by time-series rules
Mode, with to determine whether correct safe wearing cap, detection mode sequential are described as follows：
Neck sensor, which detects, blocks signal, can detect chin sensor immediately, if chin sensor detects at this time
To signal, meeting alert and prompt immediately is blocked, hatband is placed in safety cap for operating personnel and wears feelings by this state
The detection of condition；If chin sensor, which does not detect, at this time blocks signal, continue to detect after being delayed certain time length T1, such as examine
Chin sensor signal is measured, then explanation is correct wears；Signal such as is blocked without detection chin sensor, in delay T2 durations
After continue to detect, such as block signal without detection chin sensor, will also alert and prompt, this state is used for
The detection for the case where operating personnel is not with cap.
The working method of intelligent safety helmet is：
STEP1:It before wearing a safety helmet, need to turn on the power switch, initially enter process of self-test, it, will after the completion of process of self-test
A message is sent to server, which includes sensor states, GPS positioning information and base station information etc..
STEP2:After first self-test message is sent successfully, safety cap enters wearing monitor state.
STEP3:It into monitor state is worn, such as detects that wearing is abnormal, audio alert will be sent out, and send message to report
Business device.
STEP4:After correct safe wearing cap or delay certain time length, safety cap enters motion monitoring state, such as monitors
It is abnormal, alarm acousto-optic will be sent out, message will be sent thereafter to server；As do not examined the abnormal monitoring data that will periodically send to report
Business device.
STEP5:After detecting cap elimination, safety cap enters Power Supply Monitoring state, will if being not turned off power supply for a long time
It sends out alarm and makes prompt.
Server：Server receives the data that intelligent safety helmet is sent out, and realizes acquisition, management to data, passes through hand
The modes such as machine APP, wechat, PC platforms are presented to terminal user.
The present invention solves the problems, such as that conventional security cap is unable to whether monitoring results personnel correctly wear.
When solving conventional security cap and be unable to whether monitoring results personnel fall from high altitude, and falling from high altitude, this hair
Intelligent safety helmet in bright, which is sent out, alarms and notifies related personnel and inform operating personnel's location information.
By the long-range monitoring results personnel of platform operations whether safe wearing cap.
Cost of implementation is cheap, and has certain waterproof moisture-proof effect, and reduction corresponding function is carried out according to different demands, can
It further reduces the cost, can in high volume be equipped to operating personnel, without causing too big burden to enterprise.
Description of the drawings
Fig. 1 is the application schematic diagram of the present invention；
Fig. 2 is the product schematic diagram of the present invention；
Fig. 3 is the main mould block diagram of the present invention；
Fig. 4 is the forehead sensor figure of the present invention；
Specific implementation mode
Safety cap and application schematic diagram as shown in attached drawing 1-4 need to turn on the power switch before wearing a safety helmet, the electricity
Source is lithium battery, and safety cap initially enters process of self-test, and whether self-checking system connection normal, the electricity of battery whether abundance etc..
After the completion of process of self-test, NB-IOT data communications circuit will send a message to server, which can be mobile phone
The modes such as APP, wechat, PC platforms.The message includes sensor states, and sensor is in normal or abnormal, GPS positioning information
With base station information etc., the information of GPS positioning is the operating area of base station.Convenient for checking progress and the operating personnel of operation
Monitoring.
After first self-test message is sent successfully, safety cap enters wearing monitor state.Whether monitoring safety cap is worn, and
Whether correctly wear.
Wherein neck sensor detection module is mounted on the inner wall of safety cap head, for detecting whether safe wearing cap.
Into after wearing monitor state, when safe wearing cap, neck sensor, which can detect, blocks signal, when non-safe wearing cap,
Neck sensor, which can't detect, blocks signal.Chin sensor detection module is mounted on the position of safety cap cingulum chin, is used for
Whether detection safety cap cingulum fastens.When operating personnel does not fasten safety cap cingulum, chin sensor detection module detects
Exception is worn, audio alert will be sent out, operating personnel is prompted to fasten the cingulum of safety cap in time.
More specific detection process is to block signal when neck sensor detects, can detect chin sensor immediately, such as
Chin sensor detects and blocks signal fruit at this time, can alert and prompt immediately, this state is for operating personnel general
Hatband is placed in the detection of safety cap wear condition；It is certain in delay if chin sensor, which does not detect, at this time blocks signal
Continue to detect after duration T1, such as detect chin sensor signal, then explanation is correct wears；As do not detected, chin senses
Device blocks signal, continues to detect after being delayed T2 durations, does not detect the signal that blocks of chin sensor such as, will also send out
Go out warning message and prompt, this state is used for the detection for the case where operating personnel is not with cap.It such as detects that wearing is abnormal, will send out
Audio alert, and message is sent to traffic device.In this detection process, such as T1 can be 5 minutes or 10 minutes, T2
Time ratio T1 time it is long, specifically to see the place of work post and wearing to determine.
After detecting cap elimination, i.e., after neck sensor detection signal and chin sensor signal die off, peace
Full cap enters Power Supply Monitoring state, as being not turned off power supply for a long time, will send out and alarms and make prompt.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to restrict the invention, all originals in the present invention
Then within spirit made by all any modification, equivalent and improvement etc., be included within protection scope of the present invention.
Claims (10)
1. a kind of intelligent safety helmet based on NB-IOT, which is characterized in that the intelligent safety helmet includes safety cap, neck sensing
Device detection module, chin sensor detection module and main circuit module, wherein main circuit module include main MCU, GPS positioning mould
Block, 3-axis acceleration detection circuit, pressure altitude detection circuit, NB-IOT data communications circuit, micro-processor interface circuit, charging monitoring
Circuit, lithium battery.
2. the intelligent safety helmet according to claim 1 based on NB-IOT, it is characterised in that the 3-axis acceleration detection
Circuit and air pressure height detection circuit are used for detection operation personnel's motion state.
3. the intelligent safety helmet according to claim 2 based on NB-IOT, it is characterised in that the GPS positioning module is used for
Monitoring results personnel's geographical location information.
4. the intelligent safety helmet according to claim 3 based on NB-IOT, it is characterised in that the NB-IOT data communications
Circuit by it is regular or it is urgent upload current work personnel location information, Sensor monitoring information and acquisition base station location information.
5. the intelligent safety helmet according to claim 4 based on NB-IOT, it is characterised in that with voice combination LED alarm moulds
Block realizes voice and light prompt function, warning function.
6. the intelligent safety helmet according to claim 5 based on NB-IOT, it is characterised in that the neck sensor detection
Module is mounted on the inner wall of safety cap head, for detecting whether safe wearing cap.
7. the intelligent safety helmet according to claim 6 based on NB-IOT, it is characterised in that the chin sensor detection
Module is mounted on the position of safety cap cingulum chin, for detecting whether safety cap cingulum fastens.
8. the intelligent safety helmet according to claim 7 based on NB-IOT, it is characterised in that the main MCU microprocessors mould
Block is used for controlling the data detected with receiving sensor, by analyzing the data of detection, Coordination Treatment voice and LED alarm moulds
Block, control NB-IOT modules send and receive data.
9. according to any intelligent safety helmets based on NB-IOT of claim 1-8, which is characterized in that neck sensor is examined
It surveys module and chin sensor detection module uses photo-electric proximity sensor, neck sensor detection module to be located at neck position
Detection, chin sensor detection module are located at lower volume location detection, by way of time-series rules judgement, with to determine whether just
True safe wearing cap, detection mode sequential are described as follows：
Neck sensor, which detects, blocks signal, chin sensor can be detected immediately, if chin sensor detects screening at this time
Signal, meeting alert and prompt immediately are kept off, hatband is placed in safety cap wear condition by this state for operating personnel
Detection；If chin sensor, which does not detect, at this time blocks signal, continues to detect after being delayed certain time length T1, such as detect
Chin sensor signal, then explanation is correct wears；Do not detect chin sensor such as blocks signal, after being delayed T2 durations
Continue to detect, such as detect chin sensor not yet blocks signal, it will alert and prompt, this state are used for
The detection for the case where operating personnel is not with cap.
10. a kind of working method of intelligent safety helmet as described in claim 1-9 is any is：
STEP1:It before wearing a safety helmet, need to turn on the power switch, initially enter process of self-test, after the completion of process of self-test, will send
For one message to server, which includes sensor states, GPS positioning information and base station information；
STEP2:After first self-test message is sent successfully, safety cap enters wearing monitor state；
STEP3:Into monitor state is worn, such as detects that wearing is abnormal, audio alert will be sent out, and send message to traffic
Device；
STEP4:After correct safe wearing cap or delay certain time length, safety cap enters motion monitoring state, such as monitors exception,
Alarm acousto-optic will be sent out, message will be sent thereafter to server；Monitoring data will be periodically sent to traffic device as do not examined exception；
STEP5:After detecting cap elimination, safety cap enters Power Supply Monitoring state, as being not turned off power supply for a long time, will send out
Alarm simultaneously makes prompt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810158279.4A CN108402570A (en) | 2018-02-25 | 2018-02-25 | A kind of intelligent safety helmet based on NB-IOT |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810158279.4A CN108402570A (en) | 2018-02-25 | 2018-02-25 | A kind of intelligent safety helmet based on NB-IOT |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108402570A true CN108402570A (en) | 2018-08-17 |
Family
ID=63129076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810158279.4A Pending CN108402570A (en) | 2018-02-25 | 2018-02-25 | A kind of intelligent safety helmet based on NB-IOT |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108402570A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109587630A (en) * | 2018-12-26 | 2019-04-05 | 中国矿业大学 | A kind of positioning terminal of construction site group-net communication and a kind of localization method |
| CN109692392A (en) * | 2019-01-30 | 2019-04-30 | 华东交通大学 | A kind of musical therapy method and system based on cloud platform |
| CN109770898A (en) * | 2019-03-20 | 2019-05-21 | 唐延智 | A kind of safety cap based on brain electricity and NB-IoT |
| CN110150785A (en) * | 2018-11-29 | 2019-08-23 | 深圳来啊体育文化科技有限公司 | A kind of intelligent helmet online monitoring system and method |
| CN110533878A (en) * | 2019-07-18 | 2019-12-03 | 南京青铜建服科技有限公司 | A kind of violation is raised one's hat warning algorithm |
| CN110853292A (en) * | 2019-09-30 | 2020-02-28 | 广州普华永信科技有限公司 | Intelligent wearable safety suit |
| CN111341069A (en) * | 2020-03-12 | 2020-06-26 | 兰笺(苏州)科技有限公司 | Wisdom building site personnel safety real-time monitoring system |
| CN111615059A (en) * | 2020-04-08 | 2020-09-01 | 中核华纬工程设计研究有限公司 | Positioning equipment and system for monitoring information of building site personnel in real time |
| CN111972763A (en) * | 2019-05-24 | 2020-11-24 | 武汉市蓝领英才科技有限公司 | Novel intelligent safety helmet with real-time positioning function |
| CN113349502A (en) * | 2021-04-30 | 2021-09-07 | 北京瑞芯谷科技有限公司 | Safety helmet for drilling platform, intelligent monitoring system and application of safety helmet |
| CN114557510A (en) * | 2022-01-25 | 2022-05-31 | 北京中科海诚科技有限公司 | Method for monitoring safety state of staff in wind power plant by using intelligent safety helmet |
| CN116645782A (en) * | 2023-07-19 | 2023-08-25 | 中国建筑第五工程局有限公司 | Safety helmet belt detection method based on image recognition |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102348393A (en) * | 2009-02-06 | 2012-02-08 | 特雅斯股份公司 | Helmet |
| CN202842494U (en) * | 2012-10-12 | 2013-04-03 | 大唐国际发电股份有限公司重庆分公司 | Intelligent safety helmet with functions of monitoring and personnel location |
| CN205794971U (en) * | 2016-07-20 | 2016-12-14 | 佛山市威格特电气设备有限公司 | A kind of falling from high altitude risk warning safe helmet |
| CN206025327U (en) * | 2016-09-22 | 2017-03-22 | 湖北鸿路钢结构有限公司 | Alarm type safety helmet in advance |
| CN206227787U (en) * | 2016-12-08 | 2017-06-09 | 北京昊迪伟业科技发展有限公司 | Detecting alarm and intelligent safety helmet |
| CN209732688U (en) * | 2018-08-17 | 2019-12-06 | 深圳长城开发科技股份有限公司 | Crash alarm system for safety helmet and crash alarm safety helmet |
-
2018
- 2018-02-25 CN CN201810158279.4A patent/CN108402570A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102348393A (en) * | 2009-02-06 | 2012-02-08 | 特雅斯股份公司 | Helmet |
| CN202842494U (en) * | 2012-10-12 | 2013-04-03 | 大唐国际发电股份有限公司重庆分公司 | Intelligent safety helmet with functions of monitoring and personnel location |
| CN205794971U (en) * | 2016-07-20 | 2016-12-14 | 佛山市威格特电气设备有限公司 | A kind of falling from high altitude risk warning safe helmet |
| CN206025327U (en) * | 2016-09-22 | 2017-03-22 | 湖北鸿路钢结构有限公司 | Alarm type safety helmet in advance |
| CN206227787U (en) * | 2016-12-08 | 2017-06-09 | 北京昊迪伟业科技发展有限公司 | Detecting alarm and intelligent safety helmet |
| CN209732688U (en) * | 2018-08-17 | 2019-12-06 | 深圳长城开发科技股份有限公司 | Crash alarm system for safety helmet and crash alarm safety helmet |
Non-Patent Citations (1)
| Title |
|---|
| 南通大学教务处: "《学海图南：南通大学优秀毕业设计（论文）集》", 31 March 2017, 苏州大学出版社 * |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110150785A (en) * | 2018-11-29 | 2019-08-23 | 深圳来啊体育文化科技有限公司 | A kind of intelligent helmet online monitoring system and method |
| CN109587630A (en) * | 2018-12-26 | 2019-04-05 | 中国矿业大学 | A kind of positioning terminal of construction site group-net communication and a kind of localization method |
| CN109692392A (en) * | 2019-01-30 | 2019-04-30 | 华东交通大学 | A kind of musical therapy method and system based on cloud platform |
| CN109770898A (en) * | 2019-03-20 | 2019-05-21 | 唐延智 | A kind of safety cap based on brain electricity and NB-IoT |
| CN111972763A (en) * | 2019-05-24 | 2020-11-24 | 武汉市蓝领英才科技有限公司 | Novel intelligent safety helmet with real-time positioning function |
| CN110533878A (en) * | 2019-07-18 | 2019-12-03 | 南京青铜建服科技有限公司 | A kind of violation is raised one's hat warning algorithm |
| CN110853292A (en) * | 2019-09-30 | 2020-02-28 | 广州普华永信科技有限公司 | Intelligent wearable safety suit |
| CN111341069A (en) * | 2020-03-12 | 2020-06-26 | 兰笺(苏州)科技有限公司 | Wisdom building site personnel safety real-time monitoring system |
| CN111341069B (en) * | 2020-03-12 | 2022-04-01 | 兰笺(苏州)科技有限公司 | Wisdom building site personnel safety real-time monitoring system |
| CN111615059A (en) * | 2020-04-08 | 2020-09-01 | 中核华纬工程设计研究有限公司 | Positioning equipment and system for monitoring information of building site personnel in real time |
| CN113349502A (en) * | 2021-04-30 | 2021-09-07 | 北京瑞芯谷科技有限公司 | Safety helmet for drilling platform, intelligent monitoring system and application of safety helmet |
| CN114557510A (en) * | 2022-01-25 | 2022-05-31 | 北京中科海诚科技有限公司 | Method for monitoring safety state of staff in wind power plant by using intelligent safety helmet |
| CN114557510B (en) * | 2022-01-25 | 2024-03-29 | 郑州陆根智能技术有限公司 | Method for monitoring safety state of wind power plant staff by utilizing intelligent safety helmet |
| CN116645782A (en) * | 2023-07-19 | 2023-08-25 | 中国建筑第五工程局有限公司 | Safety helmet belt detection method based on image recognition |
| CN116645782B (en) * | 2023-07-19 | 2023-10-13 | 中国建筑第五工程局有限公司 | Safety helmet belt detection method based on image recognition |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108402570A (en) | A kind of intelligent safety helmet based on NB-IOT | |
| CN202842494U (en) | Intelligent safety helmet with functions of monitoring and personnel location | |
| CN107240226B (en) | Nearly electric early warning device and system | |
| CN106448053B (en) | A kind of high-altitude working safety warning system and alarm method | |
| CN111341069A (en) | Wisdom building site personnel safety real-time monitoring system | |
| CN204069358U (en) | Constructing tunnel personnel positioning management system | |
| CN105595546B (en) | A kind of Intelligent bracelet and its application method for working at height personnel | |
| CN104318732A (en) | Transformer substation field worker monitoring and management system and method based on video analysis and RFID | |
| CN204087490U (en) | A kind of giving fatigue pre-warning system based on machine vision | |
| CN104361714B (en) | The anti-cheating personal security's protector of work high above the ground based on computer vision | |
| CN114081230A (en) | Intelligent safety helmet for construction safety and epidemic prevention and control | |
| CN111165986A (en) | Intelligent safety helmet | |
| CN108205694A (en) | A kind of construction site operating personnel's alignment system based on chromatography beacon | |
| CN114569927A (en) | Fire-fighting equipment safety on-line monitoring system | |
| CN113243606A (en) | Protective safety helmet with remote communication function and safety management method | |
| CN111948960A (en) | Construction site hazard source monitoring system based on Internet of things and use method thereof | |
| CN107737429A (en) | A kind of intelligent fire-pretection system | |
| CN109078281B (en) | Intelligent safety belt capable of checking whether personnel wear standard | |
| CN214474499U (en) | Online monitoring and early warning system for safety operation in limited space | |
| CN205492834U (en) | Intelligent bracelet of electric wire netting safety work protection | |
| CN117237169A (en) | Safety control system for new energy overhaul operation | |
| CN210644883U (en) | Safety belt control box and intelligent safety belt with location and call for help function | |
| CN112016822A (en) | Wisdom building site management system | |
| CN110555969A (en) | High-altitude operation management method and system | |
| CN217743282U (en) | Safety helmet wearing detection system based on sensor |
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: 20180817 |
|
| WD01 | Invention patent application deemed withdrawn after publication |