CN109657625A - A kind of identification of crowd density estimation and method for early warning - Google Patents
A kind of identification of crowd density estimation and method for early warning Download PDFInfo
- Publication number
- CN109657625A CN109657625A CN201811576814.4A CN201811576814A CN109657625A CN 109657625 A CN109657625 A CN 109657625A CN 201811576814 A CN201811576814 A CN 201811576814A CN 109657625 A CN109657625 A CN 109657625A
- Authority
- CN
- China
- Prior art keywords
- module
- crowd
- density
- sound
- image
- 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
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000001514 detection method Methods 0.000 claims abstract description 42
- 230000003449 preventive effect Effects 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 230000002159 abnormal effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/50—Context or environment of the image
- G06V20/52—Surveillance or monitoring of activities, e.g. for recognising suspicious objects
- G06V20/53—Recognition of crowd images, e.g. recognition of crowd congestion
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
Abstract
The invention discloses a kind of identification of crowd density estimation and method for early warning, are related to technical field of computer vision.The identification of the crowd density estimation and method for early warning, the following steps are included: the collection and storage of crowd's image, the detection of crowd's head portrait density, the image comparison of crowd density, the alarm that overflows of crowd density, the detection of crowd's sound density, the comparison of crowd's sound density and crowd's sound the alarm that overflows, the output end of the photographic device is electrically connected with the input terminal of image collection module, described image collection module is bi-directionally connected with image storage module, and the output end of described image collection module is electrically connected with the input terminal of face recognition module.The identification of the crowd density estimation and method for early warning, system can be automatically reminded to each point abnormal conditions, can passenger flow forecast peak period carry out deployment scheme in advance, after there is unsafe condition, system makes chain reaction automatically, and the people's lives and property security loss is minimized.
Description
Technical field
The present invention relates to technical field of computer vision, the identification of specially a kind of crowd density estimation and method for early warning.
Background technique
With the continuous improvement of our people's living standard, comprehensive shopping centre, the famous tourist attractions of large size city
Equal regions often will appear " blowout " phenomenon of crowd, and this phenomenon becomes apparent especially during festivals or holidays.Personnel stay
Time is long, so that latent defect place is increased, induces accident factor and increases, cause Normal subject further to be promoted, crowd
Safety management difficulty is consequently increased, and traditional is all to stare to keep tens road images by manpower, pure to be determined empirically same day indemnifying party
Case, danger arrive quickly to make rationally correctly reaction.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of identification of crowd density estimation and method for early warning, have
Convenient and prompting staff, early warning effect is good, increases the advantages of safety of crowd.
(2) technical solution
In order to achieve the above object, the present invention is achieved by the following technical programs: a kind of identification of crowd density estimation
And method for early warning, comprising the following steps:
1), the collection and storage of crowd's image:
Captured in real-time picture is carried out to specific region by photographic device, and controls the shooting of each hour of photographic device
Then one group of picture shoots image to multiple groups by image collection module again and is collected, finally by image storage module Lai complete
The storage of pairs of multiple series of images；
2), the detection of crowd's head portrait density:
Face recognition and analysis are carried out to shoot image to multiple groups by face recognition module first, then pass through face density
Detection module completes the detection to crowd's head portrait density in image, can thus determine the figure every the shooting of a hour
As crowd density；
3), the image comparison of crowd density:
By image comparison module can the crowd's head portrait density result that detect in each hour shooting image with it is close
Degree definite value module compares, whether to have the shooting image close with density definite value module in this image to determine shooting；
4), the alarm that overflows of crowd density:
When having more than numerical value in density definite value module in shooting image, setting wireless transport module and wireless reception module
Premium information will be transferred to processor, at this moment processor will control alarm starting, then the wireless telecommunications by setting
Module and mobile terminal can remind staff in time, remind staff to carry out crowd density in time in time with this
Control and adjusting；
5), the detection of crowd's sound density:
It can be convenient by sound receiving module and receive the received sound in specific region, and control sound receiving module to every
It is collected every crowd's sound of a hour, then the sound collected to each hour can be rapidly completed in sound detection module
Sound module is used for quickly detecting；
6), the comparison of crowd's sound density:
The definite value that the sound that each hour collects can be arranged with it in time by the density locating module of setting into
Whether row comparison, come the sound decibel for determining detection be more than setting value with this；
7), the alarm that overflows of crowd's sound:
When crowd's sound decibel value is more than the definite value of density definite value module setting, the wireless transport module of setting and wireless
Information quickly will be transferred to processor by receiving module, and at this moment processor will control the wireless telecommunications of alarm starting setting
Module and service terminal can remind in time the staff of crowd's ambient enviroment to take preventive measures in time.
Preferably, the alarm module includes loudspeaker, buzzer and LED light.
Preferably, the wireless communication module includes WiFi module, bluetooth module and 4G module.
Preferably, the mobile terminal can be one of mobile phone or tablet computer.
Preferably, the model athlon 64x2 4400+ of the processor, the basic frequency of the processor are
2.3GHz。
A kind of identification and early warning system of crowd density estimation, including photographic device, it is characterised in that: the photographic device
Output end be electrically connected with the input terminal of image collection module, described image collection module is bi-directionally connected with image storage module,
The output end of described image collection module is electrically connected with the input terminal of face recognition module, the output end of the face recognition module
It is electrically connected with the input terminal of density definite value module, the output end of the density definite value module and the input terminal electricity of wireless transport module
Connection, the output end of the wireless transport module are electrically connected with the input terminal of wireless reception module, the wireless receiving module
Output end is electrically connected with the input terminal of processor；
The output end of the sound receiving module is electrically connected with the input terminal of sound detection module, the sound detection module
Output end be electrically connected with the input terminal of sound processing module, the output end of the sound processing module and density definite value module
Input terminal electrical connection, the output end of the processor are electrically connected with the input terminal of alarm, the processor and wireless telecommunications mould
Block is bi-directionally connected, and the output end of the wireless communication module is electrically connected with the input terminal of service terminal.
(3) beneficial effect
The present invention provides a kind of identification of crowd density estimation and method for early warning.Have it is following the utility model has the advantages that
(1), the identification of the crowd density estimation and method for early warning can be convenient by the detection to crowd density to people
By being used cooperatively for head portrait and voice, crowd can also can be improved to the detection of crowd's sound decibel in the detection of group's head portrait
The rate of Density Detection, and can achieve effect convenient to use, meanwhile, it is capable to remind staff to make accordingly in time
Safeguard measure.
(2), the identification of the crowd density estimation and method for early warning, system can be automatically reminded to each point abnormal conditions, meeting
Deployment scheme is carried out in passenger flow forecast peak period in advance, and after there is unsafe condition, system makes chain reaction automatically, by the people's
Security of the lives and property loss minimizes.
Detailed description of the invention
Fig. 1 is system diagram of the invention；
Fig. 2 is the schematic diagram of wireless communication module of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Examples of the embodiments are shown in the accompanying drawings, and in which the same or similar labels are throughly indicated identical or classes
As element or element with the same or similar functions.The embodiments described below with reference to the accompanying drawings are exemplary, purport
It is being used to explain the present invention, and is being not considered as limiting the invention.
Embodiment one:
A kind of identification of crowd density estimation and method for early warning, comprising the following steps:
1), the collection and storage of crowd's image:
Captured in real-time picture is carried out to specific region by photographic device, and controls the shooting of each hour of photographic device
Then one group of picture shoots image to multiple groups by image collection module again and is collected, finally by image storage module Lai complete
The storage of pairs of multiple series of images；
2), the detection of crowd's head portrait density:
Face recognition and analysis are carried out to shoot image to multiple groups by face recognition module first, then pass through face density
Detection module completes the detection to crowd's head portrait density in image, can thus determine the figure every the shooting of a hour
As crowd density；
3), the image comparison of crowd density:
By image comparison module can the crowd's head portrait density result that detect in each hour shooting image with it is close
Degree definite value module compares, whether to have the shooting image close with density definite value module in this image to determine shooting；
4), the alarm that overflows of crowd density:
When having more than numerical value in density definite value module in shooting image, setting wireless transport module and wireless reception module
Premium information will be transferred to processor, at this moment processor will control alarm starting, then the wireless telecommunications by setting
Module and mobile terminal can remind staff in time, remind staff to carry out crowd density in time in time with this
Control and adjusting；
5), the detection of crowd's sound density:
It can be convenient by sound receiving module and receive the received sound in specific region, and control sound receiving module to every
It is collected every crowd's sound of a hour, then the sound collected to each hour can be rapidly completed in sound detection module
Sound module is used for quickly detecting；
6), the comparison of crowd's sound density:
The definite value that the sound that each hour collects can be arranged with it in time by the density locating module of setting into
Whether row comparison, come the sound decibel for determining detection be more than setting value with this；
7), the alarm that overflows of crowd's sound:
When crowd's sound decibel value is more than the definite value of density definite value module setting, the wireless transport module of setting and wireless
Information quickly will be transferred to processor by receiving module, and at this moment processor will control the wireless telecommunications of alarm starting setting
Module and service terminal can remind in time the staff of crowd's ambient enviroment to take preventive measures in time.
Embodiment two:
A kind of identification of crowd density estimation and method for early warning, comprising the following steps:
1), the collection and storage of crowd's image:
Captured in real-time picture is carried out to specific region by photographic device, and controls the per half an hour shooting of photographic device
Then one group of picture shoots image to multiple groups by image collection module again and is collected, finally by image storage module Lai complete
The storage of pairs of multiple series of images；
2), the detection of crowd's head portrait density:
Face recognition and analysis are carried out to shoot image to multiple groups by face recognition module first, then pass through face density
Detection module completes the detection to crowd's head portrait density in image, can thus determine the figure every half an hour shooting
As crowd density；
3), the image comparison of crowd density:
By image comparison module per half an hour can be shot in image crowd's head portrait density result for detecting with it is close
Degree definite value module compares, whether to have the shooting image close with density definite value module in this image to determine shooting；
4), the alarm that overflows of crowd density:
When having more than numerical value in density definite value module in shooting image, setting wireless transport module and wireless reception module
Premium information will be transferred to processor, at this moment processor will control alarm starting, then the wireless telecommunications by setting
Module and mobile terminal can remind staff in time, remind staff to carry out crowd density in time in time with this
Control and adjusting；
5), the detection of crowd's sound density:
It can be convenient by sound receiving module and receive the received sound in specific region, and control sound receiving module to every
It is collected every crowd's sound of half an hour, then the sound collected to per half an hour can be rapidly completed in sound detection module
Sound module is used for quickly detecting；
6), the comparison of crowd's sound density:
The definite value that the sound that per half an hour collects can be arranged with it in time by the density locating module of setting into
Whether row comparison, come the sound decibel for determining detection be more than setting value with this；
7), the alarm that overflows of crowd's sound:
When crowd's sound decibel value is more than the definite value of density definite value module setting, the wireless transport module of setting and wireless
Information quickly will be transferred to processor by receiving module, and at this moment processor will control the wireless telecommunications of alarm starting setting
Module and service terminal can remind in time the staff of crowd's ambient enviroment to take preventive measures in time.
Embodiment three:
A kind of identification of crowd density estimation and method for early warning, comprising the following steps:
1), the collection and storage of crowd's image:
Captured in real-time picture is carried out to specific region by photographic device, and controls photographic device every 15 minutes and shoots
Then one group of picture shoots image to multiple groups by image collection module again and is collected, finally by image storage module Lai complete
The storage of pairs of multiple series of images；
2), the detection of crowd's head portrait density:
Face recognition and analysis are carried out to shoot image to multiple groups by face recognition module first, then pass through face density
Detection module completes the detection to crowd's head portrait density in image, can thus determine the figure every shooting in 15 minutes
As crowd density；
3), the image comparison of crowd density:
By image comparison module can the crowd's head portrait density result that detect in every 15 minutes shooting images with it is close
Degree definite value module compares, whether to have the shooting image close with density definite value module in this image to determine shooting；
4), the alarm that overflows of crowd density:
When having more than numerical value in density definite value module in shooting image, setting wireless transport module and wireless reception module
Premium information will be transferred to processor, at this moment processor will control alarm starting, then the wireless telecommunications by setting
Module and mobile terminal can remind staff in time, remind staff to carry out crowd density in time in time with this
Control and adjusting；
5), the detection of crowd's sound density:
It can be convenient by sound receiving module and receive the received sound in specific region, and control sound receiving module to every
Crowd's sound every 15 minutes is collected, and then the sound collected to every 15 minutes can be rapidly completed in sound detection module
Sound module is used for quickly detecting；
6), the comparison of crowd's sound density:
The definite value that the sound that every 15 minutes collect can be arranged with it in time by the density locating module of setting into
Whether row comparison, come the sound decibel for determining detection be more than setting value with this；
7), the alarm that overflows of crowd's sound:
When crowd's sound decibel value is more than the definite value of density definite value module setting, the wireless transport module of setting and wireless
Information quickly will be transferred to processor by receiving module, and at this moment processor will control the wireless telecommunications of alarm starting setting
Module and service terminal can remind in time the staff of crowd's ambient enviroment to take preventive measures in time
The present invention provides a kind of technical solution referring to FIG. 1-2: a kind of identification and early warning system of crowd density estimation,
Including photographic device, the output end of the photographic device is electrically connected with the input terminal of image collection module, and described image collects mould
Block is bi-directionally connected with image storage module, and the output end of described image collection module and the input terminal of face recognition module are electrically connected
Connect, the output end of the face recognition module is electrically connected with the input terminal of density definite value module, the density definite value module it is defeated
Outlet is electrically connected with the input terminal of wireless transport module, the output end of the wireless transport module and the input of wireless reception module
End electrical connection, the output end of the wireless receiving module are electrically connected with the input terminal of processor；
The output end of the sound receiving module is electrically connected with the input terminal of sound detection module, the sound detection module
Output end be electrically connected with the input terminal of sound processing module, the output end of the sound processing module and density definite value module
Input terminal electrical connection, the output end of the processor are electrically connected with the input terminal of alarm, the processor and wireless telecommunications mould
Block is bi-directionally connected, and the output end of the wireless communication module is electrically connected with the input terminal of service terminal.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (6)
1. identification and the method for early warning of a kind of crowd density estimation, comprising the following steps:
1), the collection and storage of crowd's image:
Captured in real-time picture is carried out to specific region by photographic device, and controls one group of each hour of photographic device shooting
Then picture shoots image to multiple groups by image collection module again and is collected, finally completed by image storage module pair
The storage of multiple series of images；
2), the detection of crowd's head portrait density:
Face recognition and analysis are carried out to shoot image to multiple groups by face recognition module first, then pass through face Density Detection
Module completes the detection to crowd's head portrait density in image, can thus determine the image people every the shooting of hour
Group's density；
3), the image comparison of crowd density:
Crowd's head portrait density result that each hour detects in shooting image can be determined with density by image comparison module
Value module compares, whether to have the shooting image close with density definite value module in this image to determine shooting；
4), the alarm that overflows of crowd density:
When having more than numerical value in density definite value module in shooting image, setting wireless transport module and wireless reception module will
Premium information is transferred to processor, at this moment processor will control alarm starting, then the wireless communication module by setting
Staff can be reminded in time with mobile terminal, and the control for reminding staff to carry out crowd density in time in time is come with this
With adjusting；
5), the detection of crowd's sound density:
It can be convenient by sound receiving module and receive the received sound in specific region, and control sound receiving module to every one
A hour crowd's sound is collected, and then the sound mould collected to each hour can be rapidly completed in sound detection module
Block is used for quickly detecting；
6), the comparison of crowd's sound density:
The definite value that the sound that each hour collects is arranged with it can be carried out pair in time by the density locating module of setting
Than come the sound decibel for determining detection whether being more than setting value with this；
7), the alarm that overflows of crowd's sound:
When crowd's sound decibel value is more than the definite value of density definite value module setting, the wireless transport module of setting and wireless reception
Information quickly will be transferred to processor by module, and at this moment processor will control the wireless communication module of alarm starting setting
The staff of crowd's ambient enviroment can be reminded to take preventive measures in time in time with service terminal.
2. identification and the method for early warning of a kind of crowd density estimation according to claim 1, it is characterised in that: the alarm
Module includes loudspeaker, buzzer and LED light.
3. identification and the method for early warning of a kind of crowd density estimation according to claim 1, it is characterised in that: described wireless
Communication module includes WiFi module, bluetooth module and 4G module.
4. identification and the method for early warning of a kind of crowd density estimation according to claim 1, it is characterised in that: the movement
Terminal can be one of mobile phone or tablet computer.
5. identification and the method for early warning of a kind of crowd density estimation according to claim 1, it is characterised in that: the processing
The identification of the model crowd density estimation of device and method for early warning thlon 64x2 4400+, the basic frequency of the processor are
2.3GHz。
6. the identification and early warning system of a kind of crowd density estimation, including photographic device, it is characterised in that: the photographic device
Output end is electrically connected with the input terminal of image collection module, and described image collection module is bi-directionally connected with image storage module, institute
The output end for stating image collection module is electrically connected with the input terminal of face recognition module, the output end of the face recognition module with
The input terminal of density definite value module is electrically connected, and the output end of the density definite value module and the input terminal of wireless transport module are electrically connected
Connect, the output end of the wireless transport module is electrically connected with the input terminal of wireless reception module, the wireless receiving module it is defeated
Outlet is electrically connected with the input terminal of processor；
The output end of the sound receiving module is electrically connected with the input terminal of sound detection module, the sound detection module it is defeated
Outlet is electrically connected with the input terminal of sound processing module, the output end of the sound processing module and the input of density definite value module
End electrical connection, the output end of the processor are electrically connected with the input terminal of alarm, and the processor and wireless communication module are double
To connection, the output end of the wireless communication module is electrically connected with the input terminal of service terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811576814.4A CN109657625A (en) | 2018-12-23 | 2018-12-23 | A kind of identification of crowd density estimation and method for early warning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811576814.4A CN109657625A (en) | 2018-12-23 | 2018-12-23 | A kind of identification of crowd density estimation and method for early warning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109657625A true CN109657625A (en) | 2019-04-19 |
Family
ID=66115723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811576814.4A Pending CN109657625A (en) | 2018-12-23 | 2018-12-23 | A kind of identification of crowd density estimation and method for early warning |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109657625A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111767881A (en) * | 2020-07-06 | 2020-10-13 | 中兴飞流信息科技有限公司 | Self-adaptive crowd density estimation device based on AI technology |
| CN113239913A (en) * | 2021-07-13 | 2021-08-10 | 深圳市图元科技有限公司 | Noise source positioning method, device and system based on sound and image |
| CN116153118A (en) * | 2023-04-18 | 2023-05-23 | 深圳柯赛标识智能科技有限公司 | Intelligent diversion method, device, indication board and storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101587537A (en) * | 2008-05-21 | 2009-11-25 | 上海新联纬讯科技发展有限公司 | Method and system of crowd density statistics based on intelligent video identification technology |
| CN104616432A (en) * | 2015-02-04 | 2015-05-13 | 田文华 | Intelligent identification and control method and system for people flow density |
| CN206460480U (en) * | 2017-01-13 | 2017-09-01 | 刘曼 | A kind of crowd density detection means based on Computer Vision |
| CN207233149U (en) * | 2017-08-01 | 2018-04-13 | 贵州财大鼎新科创产业有限公司 | Safety pre-warning system and wisdom public security system |
-
2018
- 2018-12-23 CN CN201811576814.4A patent/CN109657625A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101587537A (en) * | 2008-05-21 | 2009-11-25 | 上海新联纬讯科技发展有限公司 | Method and system of crowd density statistics based on intelligent video identification technology |
| CN104616432A (en) * | 2015-02-04 | 2015-05-13 | 田文华 | Intelligent identification and control method and system for people flow density |
| CN206460480U (en) * | 2017-01-13 | 2017-09-01 | 刘曼 | A kind of crowd density detection means based on Computer Vision |
| CN207233149U (en) * | 2017-08-01 | 2018-04-13 | 贵州财大鼎新科创产业有限公司 | Safety pre-warning system and wisdom public security system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111767881A (en) * | 2020-07-06 | 2020-10-13 | 中兴飞流信息科技有限公司 | Self-adaptive crowd density estimation device based on AI technology |
| CN113239913A (en) * | 2021-07-13 | 2021-08-10 | 深圳市图元科技有限公司 | Noise source positioning method, device and system based on sound and image |
| CN116153118A (en) * | 2023-04-18 | 2023-05-23 | 深圳柯赛标识智能科技有限公司 | Intelligent diversion method, device, indication board and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109657625A (en) | A kind of identification of crowd density estimation and method for early warning | |
| CN102196251B (en) | Smart-city intelligent monitoring method and system | |
| CN109102677A (en) | Construction site safety monitoring system and method | |
| CN108073577A (en) | A kind of alarm method and system based on recognition of face | |
| CN111772595A (en) | Group body temperature detection system and method | |
| CN110090372A (en) | A kind of online high altitude operation intelligent and safe band detection monitoring apparatus | |
| CN205230242U (en) | Intelligent residential district security protection system | |
| CN205375730U (en) | Safety monitoring system | |
| CN104038952A (en) | Emergency prediction method and system | |
| CN104301867A (en) | Improved community correction method and system | |
| CN107358077B (en) | Face recognition application system based on wearable device | |
| CN204231553U (en) | A kind of intelligent video monitoring system for ultra-high-tension power transmission line | |
| CN109801421A (en) | A kind of subway intelligent and safe detection system and method | |
| CN206003254U (en) | A kind of domestic intelligent burglary-resisting system | |
| CN205375740U (en) | Wireless fire alarm and intelligent monitoring system | |
| CN113077883A (en) | Health care system for old people | |
| CN109614916B (en) | Real-time monitoring and early warning computer system for station passenger state based on face recognition | |
| CN104867205A (en) | Secure identification monitoring system | |
| CN211043853U (en) | Law enforcement glasses | |
| CN105869337B (en) | A kind of fire early-warning system based on microenvironment | |
| CN114970787A (en) | Verification method, system and device based on people counting and storage medium | |
| CN204576716U (en) | A kind of warning system based on Internet of Things and voice recognition | |
| CN210742957U (en) | Bus stop with flow of people statistics function | |
| CN110610590A (en) | Intelligent safety monitoring system based on big data calculation | |
| CN110942591B (en) | Driving safety reminding system and method |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190419 |