CN106408863A - Intelligent warning wearable device based on multi-view machine vision - Google Patents

Intelligent warning wearable device based on multi-view machine vision Download PDF

Info

Publication number
CN106408863A
CN106408863A CN201610850920.1A CN201610850920A CN106408863A CN 106408863 A CN106408863 A CN 106408863A CN 201610850920 A CN201610850920 A CN 201610850920A CN 106408863 A CN106408863 A CN 106408863A
Authority
CN
China
Prior art keywords
alarm
wearable device
arrival time
unit
module
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.)
Granted
Application number
CN201610850920.1A
Other languages
Chinese (zh)
Other versions
CN106408863B (en
Inventor
何春旺
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhuhai Panshi Electronic Technology Co Ltd
Original Assignee
Zhuhai Panshi Electronic Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhuhai Panshi Electronic Technology Co Ltd filed Critical Zhuhai Panshi Electronic Technology Co Ltd
Priority to CN201610850920.1A priority Critical patent/CN106408863B/en
Publication of CN106408863A publication Critical patent/CN106408863A/en
Application granted granted Critical
Publication of CN106408863B publication Critical patent/CN106408863B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02Alarms for ensuring the safety of persons

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Alarm Systems (AREA)
  • Helmets And Other Head Coverings (AREA)

Abstract

The invention provides an intelligent warning wearable device, which comprises a multi-view vision module, a processor and a warning module, wherein the multi-view vision module and the warning module are in communication connection with the processor; the multi-view vision module is used for sensing a plurality of moving obstacles in directions within a preset distance, and transmitting real-time positions of the moving obstacles to the processor; and the processor is used for calculating arrival time according to the real-time positions, and controlling the warning module to send a warning signal to a user wearing the intelligent warning wearable device according to the arrival time. The intelligent warning wearable device based on multi-view machine vision achieves full-automatic and omni-directional safety warning, can perform continuous safety monitoring on the surrounding environment of the intelligent warning wearable device, and has the advantages of being efficiency, real-time, multi-directional and highly intelligent.

Description

A kind of intelligence warning wearable device based on many mesh machine vision
Technical field
The present invention relates to safety-security area is and in particular to a kind of can achieve carries out intelligent positioning and constant speed to barrier, concurrently Go out the wearable device of alarm signal.
Background technology
The intelligence warning wearable device with security function is different according to functional attributes, can be divided into warning others and warning Oneself two big class.Be presently used for warning others' Intelligent worn device, mainly by control itself carry out lighting, sounding Lai People near warning, generally practical at the night of insufficient light, this intelligence warning wearable device is luminous by itself Or sounding warns others' purpose to reach;Intelligent worn device for warning oneself is less, such intelligence warning wearing Equipment mainly reaches and warns the purpose of oneself by danger and then autonomous warning is detected.
Existing intelligence warning wearable device generally has that intelligence degree is low, alarm function imperfection and warning efficiency Low the shortcomings of.
Content of the invention
In order to solve above-mentioned technical problem, the present invention proposes a kind of can achieve and barrier is carried out with intelligent positioning and determines Speed, and send the intelligence warning wearable device of alarm signal, there is efficient, real-time, multi-faceted and highly intelligentized feature.
The present invention is to be realized with following technical scheme, a kind of Intelligent worn device based on many mesh machine vision, including Multi-vision visual module, processor and alarm module, described multi-vision visual module and alarm module are all communicated even with described processor Connect;
Described multi-vision visual module is used for perceiving moving obstacle in predeterminable range for the multiple directions, and by described movement The real time position of barrier transmits to described processor;
Described processor is used for calculating arrival time according to described real time position, and described arrival time is described moving disorder Wear the time of the user of described wearable device described in thing arrival, and alarm signal is produced according to described arrival time, and will Described alarm signal is transmitted to described alarm module;
Described alarm module sends alarm signal according to described alarm signal to the user wearing described wearable device.
Further, described processor includes data processing module, and described data processing module includes arrival time calculating Unit, prioritization unit and alarm control unit;
Described arrival time computing unit is used for calculating arrival time according to described real time position, and by described arrival time The orientation that corresponding moving obstacle is located with described arrival time is all transmitted to described prioritization unit and alarm signal Generation unit;
Described prioritization unit is used for corresponding to moving obstacle institute according to described arrival time to described arrival time Orientation carry out prioritization, and the result of sequence is transmitted to alarm signal generation unit, arrival time is shorter, then institute The priority stating the orientation that arrival time corresponding moving obstacle is located is higher;
Described alarm control unit is used for judging, according to priority, the side that arrival time corresponding moving obstacle is located successively Position is the need of warning, if desired, then produce alarm signal.
Described processor also includes loop control module, and described loop control module is used for controlling described data processing module After current data is disposed, circulation carries out the data processing to next round.
Described alarm control unit includes alarm signal generator, described alarm signal generator be used for according to priority according to Secondary compare arrival time and default secure threshold, if described arrival time is less than described default secure threshold, produce report Alert signal.
Described alarm control unit also includes alarm signal remover, for judging arrival time pair successively according to priority Answering the orientation that moving obstacle is located the need of warning, if not needing, judging that described arrival time corresponds to moving obstacle Whether the orientation being located is reported to the police, and if so, then produces alarm release signal.
Described alarm module includes one or more alarm unit.
Described alarm control unit also includes alarm signal controller, and described alarm signal controller is used for alarm signal Or alarm release signal transmission is to the alarm unit receiving described alarm signal or alarm release signal.
Described alarm unit includes vibrator, and described vibrator receives alarm signal and produces vibration, receives alarm release letter Number stop vibration.
Described multi-vision visual module includes one or more visual unit, and a described visual unit includes many mesh shootings Head, described many mesh camera is used for the moving obstacle in positioning and visual unit place orientation described in constant speed.
Specifically, described wearable device is helmet, and described multi-vision visual module includes being laid in described intelligence wearing and sets Standby front, rear, 5 visual unit of left, right and top;Described alarm module includes being laid in described intelligence wearing 5 alarm unit of the front of equipment, rear, left, right and top.
Additionally, described wearable device can also be glasses, waistband, necklace, police vest or protecting ware for sports.
The present invention proposes a kind of warning wearable device of the intelligence based on multi-vision visual, has the advantages that:
(1) achieve the safety warning of the full-automation of Intelligent worn device, be manually set according to actual conditions using front Good secure threshold;
(2) achieve for multi-vision visual module output data circular treatment, can be to Intelligent worn device around Environment carries out continuous safety monitoring;
(3) visual unit is laid in the upper all around five positionses altogether of Intelligent worn device, covers all regions comprehensively, It is capable of omnidirectional warning function;
(4) each visual unit tool is disposed with many mesh camera, can collect rapidly key message.
Brief description
Fig. 1 is the intelligent helmet general logical block diagram providing in embodiment 1;
Fig. 2 is the processor logic diagram providing in embodiment 1;
Fig. 3 is the data processing module logic diagram providing in embodiment 1;
Fig. 4 is the alarm control unit logic diagram providing in embodiment 1;
Fig. 5, Fig. 6 are the structural representations of the intelligent helmet providing in embodiment 1;
Fig. 7 is the intelligent helmet workflow diagram providing in embodiment 1;
Fig. 8 is the structural representation that the intelligence providing in embodiment 2 warns wearable device;
Fig. 9, Figure 10 are the structural representations that the intelligence providing in embodiment 3 warns wearable device;
Figure 11 is the structural representation that the intelligence providing in embodiment 4 warns wearable device.
Wherein:1- visual unit.
Specific implementation method
In order that those skilled in the art more fully understand the present invention program, below in conjunction with the embodiment of the present invention Accompanying drawing, is clearly and completely described to the technical scheme in the embodiment of the present invention it is clear that described embodiment is only The embodiment of a present invention part, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people The every other embodiment that member is obtained under the premise of not making creative work, all should belong to the model of present invention protection Enclose.
It should be noted that term " comprising " and " having " and their any deformation are it is intended that cover non-exclusive Comprise, for example, contain series of steps or process, method, system, product or the equipment of unit be not necessarily limited to clearly arrange Those steps going out or unit, but may include clearly not listing or solid for these processes, method, product or equipment Some other steps or unit.
Embodiment 1:
A kind of intelligent helmet as warning wearable device embodiment is shown, it is based on many mesh machine in Fig. 5, Fig. 6 Vision.Fig. 1 is the general logical block diagram of the present embodiment, as shown in figure 1, including multi-vision visual module 101, processor 102 and police Show that module 103, described multi-vision visual module 101 and alarm module 103 are all connected with the communication of described processor 102, described many mesh Vision module 101 is all connected with power module 104 with processor 102, wherein
Multi-vision visual module 101, for perceiving moving obstacle in predeterminable range for the multiple directions, and by described movement The real time position of barrier transmits to described processor;
Processor 102, for calculating arrival time according to described real time position, described arrival time is described moving disorder Thing reach described in wear described helmet user time, and alarm signal is produced according to described arrival time, and by institute State alarm signal to transmit to described warning mould 103;
Alarm module 103 sends alarm signal according to described alarm signal to the user wearing described helmet.
Specifically, described processor 102 is as shown in Fig. 2 include data processing module 1021 and loop control module 1022, Described loop control module 1022 is used for controlling described data processing module 1021 after current data is disposed, circulate into The data processing to next round for the row.
Described data processing module 1021 is as shown in figure 3, include arrival time computing unit, prioritization unit and report Alert control unit, wherein
Arrival time computing unit, for arrival time is calculated according to described real time position, and by described arrival time and The orientation that described arrival time corresponding moving obstacle is located all is transmitted and is produced to described prioritization unit and alarm signal Raw unit;
Prioritization unit, for corresponding to what moving obstacle was located according to described arrival time to described arrival time Orientation carries out prioritization, and the result of sequence is transmitted to alarm signal generation unit, and arrival time is shorter, then described arrive The priority in the orientation that the time that reaches corresponding moving obstacle is located is higher;
According to priority, alarm control unit, for judging that the orientation that arrival time corresponding moving obstacle is located is successively No need report to the police, if desired, then produce alarm signal.
Further, described alarm control unit is as shown in figure 4, include:
Alarm signal generator, for comparing arrival time and default secure threshold successively according to priority, if described Arrival time is less than described default secure threshold, then produce alarm signal.
Alarm signal remover, for judging, according to priority, the orientation that arrival time corresponding moving obstacle is located successively The need of warning, if not needing, judge whether the orientation that corresponding moving obstacle of described arrival time is located is carried out Report to the police, if so, then produce alarm release signal.
Alarm signal controller, for by alarm signal or alarm release signal transmission to receiving described alarm signal or report The alarm unit of alert ring off signal.
In the present embodiment, described multi-vision visual module is as shown in figure 5, Fig. 5, Fig. 6 are respectively the top view of described helmet And the surveys view such as just, including 5 vision lists of front, rear, left, right and the top being laid in described helmet equipment Unit, a described visual unit includes many mesh camera, and described many mesh camera is used for positioning and visual unit described in constant speed The moving obstacle in place orientation;Described alarm module include being laid in the front of described helmet, rear, left, right and 5 alarm unit of top, described alarm unit includes vibrator, and described vibrator receives alarm signal and produces vibration, receives Alarm release signal stops vibration.Specifically, above-mentioned visual unit and alarm unit are to be correspondingly arranged, also dependent on actual conditions Remove one or more visual unit, accordingly, alarm unit corresponding with removed visual unit is also removed.
Specifically, as shown in fig. 7, the flow process that the present embodiment realizes automatic safety function is:
S101. catch moving obstacle, and real time record moving obstacle continually varying position.
S102. calculate arrival time needed near helmet wearer for the described moving obstacle.
If certain orientation does not have moving obstacle, orientation corresponding arrival time described in setting current time is Empty.
S103. the arrival time in each orientation is ranked up and prioritization, arrival time the shortest distribution highest Priority.
If arrival time is sky, distribute lowest priority.
S104. successively the arrival time in each orientation is compared with default secure threshold according to priority, If arrival time, less than secure threshold, is considered as, and this orientation is dangerous, the alarm unit in described orientation produces vibration, otherwise, institute The alarm unit stating orientation does not shake.
If arrival time is sky, it is considered as no dangerous, alarm unit does not shake.
S105., after current data being disposed, circulation carries out the data processing to next round.
By the predeterminable range of the setting change perception moving obstacle to multi-vision visual module 101, peace in the present embodiment Full threshold value also can be by user's sets itself.
User passes through to dress the helmet that the present embodiment provides, when going across the road or walk, helmet in construction site Mobile object in predeterminable range for each orientation can constantly be searched for, and danger coefficient highest object in each orientation is carried out Positioning and constant speed analysis, calculate the time required for close to user simultaneously, and are analyzed according to preset algorithm and secure threshold, Finally be given and warn, user passes through to adjust self-position after learning danger signal and attitude just can avoid bumping against with barrier and reach To hedging purpose.
Present embodiments provide a kind of intelligent helmet based on many mesh machine vision, be capable of omnidirectional warning work( Can, user only need to arrange secure threshold, you can full-automatic carries out safety warning for user, can be widely used in pedestrian's mistake The multiple fields such as road, building worker operation, jungle expedition, infantry's operation, possess wide prospect of the application.
Embodiment 2:
A kind of intelligence warning wearable device based on many mesh machine vision, different from embodiment 1, described wearable device is permissible For waistband, necklace or wrist strap, as shown in figure 8, multi-vision visual module include being laid in described waistband, necklace or wrist strap front, Rear, left and right totally 4 visual unit, a described visual unit includes many mesh camera, and described many mesh camera is used Moving obstacle in visual unit place orientation described in positioning and constant speed;Described alarm module includes being laid in described intelligence The front of wearable device, rear, left and right 4 alarm unit, described alarm unit includes vibrator, and described vibrator connects Receive alarm signal and produce vibration, receive alarm release signal and stop vibration.
Embodiment 3:
A kind of intelligence warning wearable device based on many mesh machine vision, different from embodiment 1, described wearable device is permissible For police vest or protecting ware for sports, Fig. 9, Figure 10 are respectively the top view of described intelligence warning wearable device and just etc. surveying and regard Figure.Multi-vision visual module includes being laid in 1 visual unit in the front of described police vest or protecting ware for sports and 1 of rear Visual unit, a described visual unit includes many mesh camera, and described many mesh camera is used for regarding described in positioning and constant speed Feel the moving obstacle in unit place orientation.
Embodiment 4:
A kind of intelligence warning wearable device based on many mesh machine vision, different from embodiment 1, described wearable device is permissible For glasses, as shown in figure 11, multi-vision visual module include being laid in 1 visual unit in the front of described glasses, 1 of left Visual unit and 1 visual unit of right, a described visual unit includes many mesh camera, and described many mesh camera is used for Positioning and the moving obstacle in visual unit place orientation described in constant speed.
The above is only the preferred embodiment of the present invention it is noted that ordinary skill people for the art For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should It is considered as protection scope of the present invention.

Claims (11)

1. a kind of intelligence warning wearable device based on many mesh machine vision is it is characterised in that include multi-vision visual module, process Device and alarm module, described multi-vision visual module and alarm module are all connected with the communication of described processor;
Described multi-vision visual module is used for perceiving moving obstacle in predeterminable range for the multiple directions, and by described moving disorder The real time position of thing transmits to described processor;
Described processor is used for calculating arrival time according to described real time position, and described arrival time arrives for described moving obstacle Wear described in reaching the time of the user of described wearable device, and alarm signal is produced according to described arrival time, and will be described Alarm signal is transmitted to described alarm module;
Described alarm module sends alarm signal according to described alarm signal to the user wearing described wearable device.
2. intelligence warning wearable device according to claim 1 is it is characterised in that described processor includes data processing mould Block, described data processing module includes arrival time computing unit, prioritization unit and alarm control unit;
Described arrival time computing unit is used for calculating arrival time according to described real time position, and by described arrival time and institute The orientation stating arrival time corresponding moving obstacle place is all transmitted to described prioritization unit and alarm signal generation Unit;
Described prioritization unit is used for according to described arrival time to corresponding moving obstacle of described arrival time place Orientation carries out prioritization, and the result of sequence is transmitted to alarm signal generation unit, and arrival time is shorter, then described arrive The priority in the orientation that the time that reaches corresponding moving obstacle is located is higher;
Described alarm control unit is used for judging that the orientation that arrival time corresponding moving obstacle is located is successively according to priority No need report to the police, if desired, then produce alarm signal.
3. intelligence warning wearable device according to claim 2 is it is characterised in that described processor also includes loop control Module, described loop control module is used for controlling described data processing module after current data is disposed, and circulation is carried out Data processing to next round.
4. the intelligence warning wearable device according to Claims 2 or 3 is it is characterised in that described alarm control unit includes Alarm signal generator, described alarm signal generator is used for comparing arrival time and default safety threshold successively according to priority Value, if described arrival time is less than described default secure threshold, produces alarm signal.
5. intelligence warning wearable device according to claim 4 is it is characterised in that described alarm control unit also includes reporting Alert signal relief device, for judging the orientation at arrival time corresponding moving obstacle place the need of report successively according to priority Alert, if not needing, judge whether the orientation that corresponding moving obstacle of described arrival time is located is reported to the police, if so, Then produce alarm release signal.
6. intelligence warning wearable device according to claim 5 is it is characterised in that described alarm module includes one or many Individual alarm unit.
7. intelligence warning wearable device according to claim 6 is it is characterised in that described alarm control unit also includes reporting Alert signal controller, described alarm signal controller is used for alarm signal or alarm release signal transmission to receiving described warning Signal or the alarm unit of alarm release signal.
8. intelligence according to claim 7 warns wearable device it is characterised in that described alarm unit includes vibrator, Described vibrator receives alarm signal and produces vibration, receives alarm release signal and stops vibration.
9. the intelligence warning wearable device according to any one of claims 1 to 3 is it is characterised in that described multi-vision visual mould Block includes one or more visual unit, and a described visual unit includes many mesh camera, and described many mesh camera is used for fixed Position and the moving obstacle in visual unit place orientation described in constant speed.
10. the intelligence warning wearable device according to any one of claims 1 to 3 is it is characterised in that described wearable device is Helmet, described multi-vision visual module includes front, rear, left, right and the top being laid in described Intelligent worn device 5 visual unit;Described alarm module include being laid in the front of described Intelligent worn device, rear, left, right and on 5 alarm unit of side.
The 11. intelligence warning wearable device according to any one of claim 1 to 10 are it is characterised in that described wearable device For glasses, waistband, necklace, police vest or protecting ware for sports.
CN201610850920.1A 2016-09-26 2016-09-26 A kind of intelligence warning wearable device based on more mesh machine vision Active CN106408863B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610850920.1A CN106408863B (en) 2016-09-26 2016-09-26 A kind of intelligence warning wearable device based on more mesh machine vision

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610850920.1A CN106408863B (en) 2016-09-26 2016-09-26 A kind of intelligence warning wearable device based on more mesh machine vision

Publications (2)

Publication Number Publication Date
CN106408863A true CN106408863A (en) 2017-02-15
CN106408863B CN106408863B (en) 2018-09-28

Family

ID=57998238

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610850920.1A Active CN106408863B (en) 2016-09-26 2016-09-26 A kind of intelligence warning wearable device based on more mesh machine vision

Country Status (1)

Country Link
CN (1) CN106408863B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108242126A (en) * 2018-03-20 2018-07-03 四川大学 It is a kind of can active probe and hazard recognition and alarm intelligent wearable device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060111841A1 (en) * 2004-11-19 2006-05-25 Jiun-Yuan Tseng Method and apparatus for obstacle avoidance with camera vision
CN102621986A (en) * 2012-04-13 2012-08-01 西北农林科技大学 Navigation control system based on vision and ultrasonic waves
CN103794026A (en) * 2012-10-31 2014-05-14 鸿富锦精密工业(深圳)有限公司 Labor protection article, danger early-warning system and danger early-warning method
CN204484695U (en) * 2014-06-30 2015-07-22 岳川凯 A kind of wearable blind guiding system
CN104808209A (en) * 2015-05-13 2015-07-29 集怡嘉数码科技(深圳)有限公司 Method and device for detecting obstacle
CN105005999A (en) * 2015-08-12 2015-10-28 北京航空航天大学 Obstacle detection method for blind guiding instrument based on computer stereo vision

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060111841A1 (en) * 2004-11-19 2006-05-25 Jiun-Yuan Tseng Method and apparatus for obstacle avoidance with camera vision
CN102621986A (en) * 2012-04-13 2012-08-01 西北农林科技大学 Navigation control system based on vision and ultrasonic waves
CN103794026A (en) * 2012-10-31 2014-05-14 鸿富锦精密工业(深圳)有限公司 Labor protection article, danger early-warning system and danger early-warning method
CN204484695U (en) * 2014-06-30 2015-07-22 岳川凯 A kind of wearable blind guiding system
CN104808209A (en) * 2015-05-13 2015-07-29 集怡嘉数码科技(深圳)有限公司 Method and device for detecting obstacle
CN105005999A (en) * 2015-08-12 2015-10-28 北京航空航天大学 Obstacle detection method for blind guiding instrument based on computer stereo vision

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108242126A (en) * 2018-03-20 2018-07-03 四川大学 It is a kind of can active probe and hazard recognition and alarm intelligent wearable device

Also Published As

Publication number Publication date
CN106408863B (en) 2018-09-28

Similar Documents

Publication Publication Date Title
CN109015638B (en) Patrol robot control method and system for conference security
CN108093228A (en) A kind of construction site recruitment monitoring service system
KR101339928B1 (en) Integrated wireless ship management system based on local information of worker
WO2017090829A1 (en) Iot-based smart safety system for woman diver
US20190286985A1 (en) Real-time Monitoring
KR101340008B1 (en) Removable Smart Module for Helmet
CN106579627A (en) Intelligent warning wearable device
CN107359889A (en) Fire fighter's alignment system based on Internet of Things
CN106503830A (en) A kind of unmanned plane patrol system and its patrol method
CN107028274A (en) A kind of helmet and the method that interaction is carried out using the helmet
CN109473016A (en) It is a kind of novel to listen barrier, deaf and dumb crowd's auxiliary security and information interchange device and method
KR101722713B1 (en) System for managing a location in zone
Srinivasan et al. Smart Crosswalk Management with Vehicle-to-Pedestrian Communication
CN106408863A (en) Intelligent warning wearable device based on multi-view machine vision
CN105488948A (en) Integrated intelligent production safety monitoring management system method and device of individual protection articles
CN103230119A (en) Multifunctional safety helmet and method for achieving visual intercom by using same
CN105892532A (en) Vegetable greenhouse environment intelligent regulation and control system
CN106598065A (en) Binocular-supersonic fusion obstacle avoidance control method for unmanned aerial vehicles
CN203894905U (en) Wearable human body collision early warning protection device
CN206062399U (en) A kind of warning, positioning, the Intelligent bracelet equipment of vital sign monitoring
CN211608330U (en) Wearable device
CN106231556A (en) A kind of personal security for electric power overhaul positions and guider
CN114511902A (en) A machine dog for public place epidemic situation patrols and examines
CN107038901A (en) Aircraft attack early warning system
US10607474B2 (en) Facility safety system

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant