CN106657936A - Voice warning method and system based on video monitoring of dangerous area - Google Patents
Voice warning method and system based on video monitoring of dangerous area Download PDFInfo
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- CN106657936A CN106657936A CN201710122099.6A CN201710122099A CN106657936A CN 106657936 A CN106657936 A CN 106657936A CN 201710122099 A CN201710122099 A CN 201710122099A CN 106657936 A CN106657936 A CN 106657936A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Alarm Systems (AREA)
Abstract
The invention discloses a voice warning method and system based on video monitoring of a dangerous area, which is applicable to the technical field of video monitoring. The method comprises the following steps: distributing video image collection equipment in a specific area, wherein the image collection equipment is used for video image collection in the specific area; and judging whether a moving object exists in a collected video image or not, and carrying out voice warning if the moving object exists in the collected video image. The voice warning method and system based on the video monitoring of the dangerous area has the advantages that a high sensitivity to the moving object is achieved, so that a person entering the specific dangerous area can be rapidly discovered, and the voice warning can be carried out; the efficiency and the anti-interference capability are high; and through a solar power supply system, the consumption of power resources and the cost can be effectively reduced.
Description
Technical field
The present invention relates to a kind of technical field of video monitoring, more particularly, to a kind of video monitoring danger zone voice is based on
Alarming method for power and system.
Background technology
Video monitoring system has been widely used in the safety and protection system of all trades and professions, such as in market, campus, street
The various places such as road carry out video monitoring, are easy to find accident in time, so as to reply in time and process.
With the development of computer technology, multimedia technology and image processing techniques, the technology of field of video monitoring
A change is experiencing, intellectuality is more and more applied in safety precaution field.Video is added in video monitoring
Intellectual analysis, can accomplish analysis real-time to video flowing and process, and be prevented effectively from information omission, substantially increase video monitoring
Effect and quality.
In some hazardous areas, such as place such as construction area, colliery, Craft in Chemical Industrial Area, a sign is only done, often risen not
Too big warning function, it is easy to be ignored.If having unrelated person to enter or not by fixed route walking, it is possible to which people occurs
Body security incident.
The content of the invention
It is an object of the invention to overcome the defect of prior art, there is provided a kind of to be warned based on video monitoring danger zone voice
Show method and system, send caution sound when someone is into specific region and warned accordingly.
For achieving the above object, the present invention proposes following technical scheme：It is a kind of to be warned based on video monitoring danger zone voice
Show method, comprise the steps：
Step 1, in specific region video image acquisition equipment is laid, and described image collecting device is regarded to specific region
Frequency IMAQ；
Step 2, judges to whether there is mobile object in the video image of collection, if there is mobile object, carries out voice
Warning.
Preferably, the judgement specific region comprises the steps with the presence or absence of mobile object：
Step 201, extracts each frame data in video image, and the regional area to every frame data is calculated, and is carried
The frame data of the regional area are taken, the frame data of the regional area are stored in annular chain meter；
Step 202, obtains Liang Zheng local datas from the annular data chained list, and calculates the absolute of Liang Zheng local datas
Difference compares with pre-set threshold value, if absolute difference is more than pre-set threshold value, has mobile object to enter monitor area.
Preferably, the extraction of the frame data of the regional area comprises the steps：
(201a) default frame-handling function is called to be extracted, the frame-handling function includes regional area frame data head
Pointer, the row length of regional area frame data and col width, the data head pointer points to the head of the regional area；
(201b) according to the row length and col width, two are defined and is recirculated, assignment is shifted by pointer, obtain partial zones
Domain frame data.
Preferably, the node of the annular chain meter is used to store frame of data information, and the node is realized by structure, structure
The member of body includes the pointer of the original position for pointing to frame data.
Preferably, the frame of data information be stored in and reading comprises the steps：
S1, arranges a Driver_pnode chain list index used for driver, the Driver_pnode chained lists
Frame data are stored in pointer the node of annular chain meter；
S2, arranges an Application_pnode chain list index used for application program, the Application_
Pnode chains list index reads frame data from the node.
One kind is based on video monitoring danger zone phonetic warning system, it is characterised in that including microprocessor control unit,
And video image acquisition unit, the data storage cell communicated with the microprocessor control unit, phonetic warning unit；
The video image acquisition unit is used to carry out video image acquisition to specific region；
The data storage cell is used for view data and the voice messaging that storage image collecting unit is collected；
The microprocessor control unit is used to be analyzed view data process, in determining whether the image for gathering
With the presence or absence of mobile object；
The voice messaging that the phonetic warning unit is used in played data storage.
Preferably, the system also includes wireless communication unit, the wireless communication unit and microprocessor control unit
Communicate, view data is transmitted to Control Room.
Preferably, system also includes solar powered unit, including solar panel, battery pack, and power management
Circuit module, the electric power management circuit module includes solar panel charge-discharge control circuit module, battery protecting circuit
Module, DC voltage converting circuit module, and voltage stabilizing circuit module.
Preferably, the phonetic warning unit includes sound card, loudspeaker, microphone, and the sound card is controlled with microprocessor
Unit is communicated, and microphone and loudspeaker are connected with sound card.
The invention has the beneficial effects as follows：
It is of the present invention based on video monitoring danger zone phonetic warning method and system, energy sensitive to moving target
It is enough quickly to discover whether that someone enters particular risk region, and carry out phonetic warning, with efficiency high, strong antijamming capability
Advantage, and solar electric power supply system is adopted, electric power resource can be effectively reduced, reduce cost.
Description of the drawings
Fig. 1 is the present invention based on video monitoring danger zone phonetic warning method flow diagram schematic diagram；
Fig. 2 is that the judgement specific region of the present invention whether there is mobile object flow chart schematic diagram；
Fig. 3 is that the frame data of the present invention are stored in and read schematic diagram；
Fig. 4 is the time domain local frame difference method flow chart of data processing figure of the present invention；
Fig. 5 is the present invention based on video monitoring danger zone phonetic warning system structured flowchart schematic diagram；
Fig. 6 is the solar powered unit structured flowchart schematic diagram of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing of the present invention, clear, complete description is carried out to the technical scheme of the embodiment of the present invention.
As shown in figure 1, disclosed one kind is based on video monitoring danger zone phonetic warning method and system, energy
It is enough that monitor in real time is carried out to catastrophe risk region, and corresponding phonetic warning is carried out when someone is into catastrophe risk region, have
Effect the warning in catastrophe risk region is solved the problems, such as, and the generation of accident can be avoided.
One kind is based on video monitoring danger zone phonetic warning method, comprises the steps：
Step 1, in specific region video image acquisition equipment is laid, and the video image acquisition equipment enters to specific region
Row video image acquisition；
Specifically, the specific region includes that construction area, coal field, chemical industry place etc. are susceptible to personal safety thing
Therefore where, video capture device is laid in specific region, the video capture device can be carried out in real time to certain region
IMAQ.The video image acquisition equipment includes image sensor cell, data processing unit and interface unit.
Described image sensor unit is used to gather video image, and the vedio data of analog signal form is converted to into digital letter
The vedio data of number form；Data processing unit is further processed the data signal after conversion, carries out data form
Conversion；The interface unit is used to arrange data form, the resolution ratio of video image output, and data transfer mode.
When video image acquisition is carried out, image sensor cell is converted to the vedio data of analog signal form
Digital signal form, is converted into the data that form is RAW RGB.The form for RAW RGB vedio data be input into
In data processing unit, data processing unit is further processed the data of RAWRGB forms, converts thereof into form for YUV lattice
The data of formula, the data input of yuv format into interface unit, the form, resolution ratio in interface unit to output data, with
And transmission means be configured after export.
In the present embodiment, the video image acquisition equipment using OV series CMOS camera, high resolution up to 960 ×
720。
Step 2, judges to whether there is mobile object in the video image of collection, if there is mobile object, carries out voice
Warning.
Specifically, as shown in Fig. 2 including following step to the judgement in the video image of collection with the presence or absence of mobile object
Suddenly：
Step 201, extracts each frame data in video image, and the regional area to every frame data is calculated, and is carried
The frame data of the regional area are taken, the frame data of the regional area are stored in annular chain meter；
Step 202, obtains Liang Zheng local datas from the annular data chained list, calculates the absolute difference of Liang Zheng local datas
Value simultaneously compares with pre-set threshold value, if absolute difference is more than pre-set threshold value, has mobile object to enter monitor area.
Specifically, when extracting the frame data of regional area, default frame-handling function, whole frame data is called to enter frame
Process the regional area frame data that needs are exported after function.The whole frame data are according to image capture device scan mode order
Storage, regional area frame data head pointer, regional area frame data row length and a column width defined in frame-handling function,
And the data head pointer points to the head of the regional area, according to row length and column width, double circulation is defined, by referring to
Pin shifts assignment, and then obtains regional area frame data.
With reference to shown in Fig. 3 and Fig. 4, the annular chain meter is used to deposit frame of data information, and the annular chain meter includes some
Individual node, status information, information of frame data of the node memory node of each annular chain meter etc., the annular chain meter each section
Point is realized that the member of structure includes pointer, and the pointer points to the original position of frame data, by annular chain meter by structure
Node can read every frame data.
When being stored in and reading per frame data, referred to for the Driver_pnode chained lists that driver is used by arranging one
The Application_pnode chains list index that pin and one are used for application program is being stored in, read frame data, original state
When, two pointers point to annular chain meter.Specifically, video image acquisition equipment uses Driver_pnode chains by driver
List index is stored in frame data in the node of annular chain meter, and now the status information of the node is full, Driver_pnode chained lists
Pointer points to next node；Application program takes out the frame data in node using Application_pnode chains list index, this
When the node concept transfer status information for sky, Application_pnode chains list index point to next node.According to prison
The layout in control region, calculates the regional area per frame data, further calculates absolute difference and judges whether more than pre-set threshold value,
If absolute difference is more than pre-set threshold value, there is mobile object to enter monitor area, accordingly warned.
The phonetic warning includes various warning sound, for reminding the people into danger zone to withdraw as early as possible, in order to avoid
Cause unnecessary injury.
As shown in figure 5, a kind of be based on video monitoring danger zone phonetic warning system, including microprocessor control unit,
And video image acquisition unit, data storage cell, the phonetic warning unit communicated with the microprocessor control unit；
The video image acquisition unit is used to carry out video image acquisition to specific region；
The data storage cell is used for view data and the voice messaging that storage image collecting unit is collected；
The microprocessor control unit is used to be analyzed view data process, in determining whether the image for gathering
With the presence or absence of mobile object；
The voice messaging that the phonetic warning unit is used in played data storage.
Specifically, image acquisition units send the view data that specific region collects into data storage cell, micro-
Processor control unit is processed described image data, determines whether that mobile object enters monitor area, if monitoring
There is mobile object to enter, then start phonetic warning unit, to occurring in the personnel in monitor area corresponding phonetic warning is carried out.
Described image collecting unit includes at least one image capture device, and described image collecting device is set in given zone
Domain, such as construction area, to specific region IMAQ is carried out.In the present embodiment, the video image acquisition equipment includes
Image sensor cell, data processing unit and interface unit.Described image sensor unit is used to gather video image,
And the vedio data of analog signal form is converted to into the vedio data of digital signal form；Data processing unit pair
Data signal after conversion is further processed；The interface unit is used to arrange data form, the resolution ratio of video image output,
And data transfer mode.
When video image acquisition is carried out, image sensor cell is converted to the vedio data of analog signal form
Digital signal form, that is, be converted into the data that form is RAW RGB.The form is input into for the vedio data of RAW RGB
Into data processing unit, data processing unit is further processed the data of RAW rgb formats, is converted thereof into form and is
The data of yuv format, form, resolution of the data input of yuv format into interface unit, in interface unit to output data
Rate, and export after transmission means is configured.
In the present embodiment, it is preferable that the video image acquisition equipment is using OV serial CMOS camera, high resolution
Up to 960 × 720.
The microprocessor control unit adopts the microprocessor of model S3C2440, integrated sdram controller and piece to select
Logic, IIS-BUS controllers, SDIO interfaces, USB interface, and CAMIF interface controllers, facilitate external equipment access and
Use, specifically, the sdram controller is communicated with data storage cell, CAMIF interface controllers and image acquisition units
In image capture device be connected, IIS-BUS controllers are communicated with phonetic warning unit, and control voice alarm unit is carried out
Phonetic warning.
The data of image capture device collection are transmitted view data into microprocessor control unit by interface unit
CAMIF interface controllers in, the CAMIF interface controllers are changed to the view data for receiving, while carrying out DMA
Channel selecting, is stored in view data in data storage cell eventually through the DMA channel for selecting, and waits and further processing.
There are two queues in microprocessor control unit, one uses for application program, and one makes for bsp driver
With same data storage cell is pointed in two queues, when image capture device sends a frame data by DMA channel, is used
Bsp driver sequence puts it into data storage cell, and a frame is taken out from data storage cell using application queue
Data, and the regional area to every frame data calculates, and the frame data of the regional area is extracted, by the regional area
Frame data are stored in annular chain meter；Liang Zheng local datas are obtained from the annular data chained list, and calculates Liang Zheng local datas
Absolute difference, compare with pre-set threshold value, if absolute difference be more than pre-set threshold value, have mobile object to enter monitor area, control
Phonetic warning unit processed carries out corresponding phonetic warning.
Preferably, the system also includes memory cell of taking pictures, and the memory cell of taking pictures is communicated with SDIO interfaces.When
When microprocessor control unit is determined with mobile object into monitor area, control image capture device carries out process of taking pictures, and
The photo of shooting is stored in into memory cell of taking pictures, so that the later stage carries out information inquiry.
The phonetic warning unit includes sound card, loudspeaker, microphone, and the sound card is communicated with microprocessor control unit
Letter, microphone and loudspeaker are connected with sound card.Specifically, microprocessor control unit is entered by GPIO pin control sound card
Row work, by IlS-BUS controllers voice data is read from data storage cell, is carried out by the incoming sound card of IIS buses
DAC is changed, and the voice data for presetting is played out eventually through loudspeaker.It is, of course, also possible to pass through microphone apparatus typing warn
Show sound, specifically, microphone sends speech simulation signal into sound card, and the sound card carries out ADC conversions, sound to analog signal
Card preserves the data after conversion into SDRAM by ITS controller.
The system also includes wireless communication unit, and the wireless communication unit is with microprocessor control unit to communication.
In the view data for needing acquisition image capture device to collect, can be by IMAQ by described wireless communication unit
The data is activation of equipment collection carries out monitor in real time to background monitoring center to specific region.
As shown in fig. 6, the system also includes solar powered unit, including solar panel, battery pack, Yi Ji electricity
Power management circuits module, the electric power management circuit module includes that solar panel charge-discharge control circuit module, battery are protected
Protection circuit module, DC voltage converting circuit module, and voltage stabilizing circuit module.Specifically, solar panel is by solar energy
Electric energy is converted to, battery pack is filled by solar panel charge-discharge control circuit module and battery protecting circuit module
Electricity, while carrying out voltage conversion by DC voltage converting circuit, carries out stablizing for voltage, finally to system by mu balanced circuit
It is powered.When not there is solar energy, battery pack carries out voltage conversion by DC voltage converting circuit, is entered by mu balanced circuit
Stablizing for row voltage, is finally powered to system.
It is of the present invention based on video monitoring danger zone phonetic warning method and system, energy sensitive to moving target
It is enough quickly to discover whether that someone enters particular risk region, and carry out phonetic warning, with efficiency high, strong antijamming capability
Advantage, and solar electric power supply system is adopted, electric power resource can be effectively reduced, reduce cost.
The technology contents and technical characteristic of the present invention have revealed that as above, but those of ordinary skill in the art still may base
Make a variety of replacements and modification without departing substantially from spirit of the present invention in teachings of the present invention and announcement, therefore, the scope of the present invention
The content that should be not limited to disclosed in embodiment, and various replacements and modification without departing substantially from the present invention should be included, and for this patent Shen
Please claim covered.
Claims (9)
1. it is a kind of to be based on video monitoring danger zone phonetic warning method, it is characterised in that to comprise the steps：
Step 1, in specific region video image acquisition equipment is laid, and described image collecting device carries out video figure to specific region
As collection；
Step 2, judges to whether there is mobile object in the video image of collection, if there is mobile object, carries out phonetic warning.
2. method according to claim 1, it is characterised in that the judgement specific region includes with the presence or absence of mobile object
Following steps：
Step 201, extracts each frame data in video image, and the regional area to every frame data is calculated, and extracts institute
The frame data of regional area are stated, the frame data of the regional area are stored in annular chain meter；
Step 202, obtains Liang Zheng local datas from the annular data chained list, and calculates the absolute difference of Liang Zheng local datas
Compare with pre-set threshold value, if absolute difference is more than pre-set threshold value, have mobile object to enter monitor area.
3. method according to claim 2, it is characterised in that the extraction of the frame data of the regional area includes following step
Suddenly：
(201a) default frame-handling function is called to be extracted, the frame-handling function refers to including regional area frame data head
Pin, the row length of regional area frame data and col width, the data head pointer points to the head of the regional area；
(201b) according to the row length and col width, two are defined and is recirculated, assignment is shifted by pointer, obtain regional area frame
Data.
4. method according to claim 2, it is characterised in that the node of the annular chain meter be used to store frame number it is believed that
Breath, the node is realized that the member of structure includes the pointer of the original position for pointing to frame data by structure.
5. method according to claim 4, it is characterised in that the frame of data information being stored in and reads including following step
Suddenly：
S1, arranges a Driver_pnode chain list index used for driver, the Driver_pnode chains list index
Frame data are stored in into the node of annular chain meter；
S2, arranges an Application_pnode chain list index used for application program, the Application_
Pnode chains list index reads frame data from the node.
6. it is a kind of to be based on video monitoring danger zone phonetic warning system, it is characterised in that including microprocessor control unit, with
And video image acquisition unit, the data storage cell communicated with the microprocessor control unit, phonetic warning unit；
The video image acquisition unit is used to carry out video image acquisition to specific region；
The data storage cell is used for view data and the voice messaging that storage image collecting unit is collected；
Whether the microprocessor control unit is used to be analyzed view data processs, determine whether in the image of collection
There is mobile object；
The voice messaging that the phonetic warning unit is used in played data storage.
7. system according to claim 6, it is characterised in that the system also includes wireless communication unit, described wireless
Communication unit is communicated with microprocessor control unit, and view data is transmitted to Control Room.
8. system according to claim 6, it is characterised in that the system also includes solar powered unit, including too
Positive energy cell panel, battery pack, and electric power management circuit module, the electric power management circuit module is filled including solar panel
Charge/discharge control circuit module, battery protecting circuit module, DC voltage converting circuit module, and voltage stabilizing circuit module.
9. system according to claim 6, it is characterised in that the phonetic warning unit includes sound card, loudspeaker, Mike
Wind, the sound card is communicated with microprocessor control unit, and microphone and loudspeaker are connected with sound card.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710122099.6A CN106657936A (en) | 2017-03-03 | 2017-03-03 | Voice warning method and system based on video monitoring of dangerous area |
Applications Claiming Priority (1)
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| CN201710122099.6A CN106657936A (en) | 2017-03-03 | 2017-03-03 | Voice warning method and system based on video monitoring of dangerous area |
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ID=58848000
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| CN201710122099.6A Pending CN106657936A (en) | 2017-03-03 | 2017-03-03 | Voice warning method and system based on video monitoring of dangerous area |
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| CN108520611A (en) * | 2018-04-12 | 2018-09-11 | 上海小蚁科技有限公司 | Video data monitoring method and device, storage medium, terminal |
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