CN103905706A - Internet protocol camera and control method thereof - Google Patents
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- CN103905706A CN103905706A CN201410160943.0A CN201410160943A CN103905706A CN 103905706 A CN103905706 A CN 103905706A CN 201410160943 A CN201410160943 A CN 201410160943A CN 103905706 A CN103905706 A CN 103905706A
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Abstract
The invention relates to an internet protocol camera and a control method thereof. The internet protocol camera comprises a micro-control unit, a camera assembly, an infrared sensor and a data transmission module, wherein the micro-control unit is used for controlling the working process of the internet protocol camera; the camera assembly is connected with the micro-control unit and used for photographing and videoing external images and generating corresponding image data; the infrared sensor is connected with the micro-control unit through an amplifying and filtering circuit and used for sensing moving objects; the data transmission module is connected with the micro-control unit and used for transmitting the image data sent by the camera assembly to a server. According to the control method of the internet protocol camera, whether the data transmission module is in a work status is determined by judging whether a signal transmitted by the infrared sensor reaches up to a signal threshold and whether difference between front frames and rear frames of the image data reaches up to the signal threshold successively. By means of the control method of the internet protocol camera, electric energy of the internet protocol camera can be saved, occupied network resources are decreased, service life of the internet protocol camera is prolonged, no great amount of storage space is needed, and cost on long-term monitoring of the internet protocol camera is reduced.
Description
Technical field
The present invention relates to watch-dog, relate in particular to a kind of web camera and control method thereof.
Background technology
Along with increasing gradually and the enhancing of people's awareness of safety of social mobility population, increasing enterprises and institutions or individual family all wish to protect the person and property safety by safety monitoring technology, effectively alleviate economic loss.
The web camera that is useful on the market at present remote monitoring, transmits video signal to remote monitoring center by IP network.Because this IP network video camera continues track up always, therefore remote monitoring center will need jumbo hard disk to carry out stored video data, and this is for long-term monitoring high cost, and uneconomical.
Summary of the invention
The object of the invention is to the defect for overcoming prior art, and provide a kind of web camera and control method thereof, make web camera automatically select to carry out appropriate opportunity track up in the time of monitoring operating mode, to reduce the use cost of the long-term monitoring of web camera.
For achieving the above object, the present invention is by the following technical solutions:
A kind of web camera, includes:
For controlling the micro-control unit of web camera workflow;
Connect with micro-control unit, for shooting with video-corder extraneous image and generating the camera assembly of corresponding image data;
Be connected, transfer to for the image data that camera assembly is transmitted the data transmission module of server with micro-control unit;
For the infrared inductor of inducing moving objects;
The filtering and amplifying circuit being connected with micro-control unit and infrared inductor respectively.
Further, camera assembly comprises the digital signal processing unit for external optical signals being converted to the image sensor of picture signal and processing for the picture signal that image sensor is transmitted.
Further, data transmission module transmits image data to server by wireless transmission method.
Further, web camera also comprises the light adjusting part being connected with micro-control unit.
Further, light adjusting part includes: light-sensitive element, for the light source part of light filling and for the filter part of infrared filtering.
The control method that the invention also discloses a kind of web camera, comprises the following steps:
S1, web camera is in holding state, and infrared inductor is in monitoring pattern, and data transmission module is in park mode, and camera assembly is in shutdown mode;
S2, when infrared inductor has sensed mobile object, infrared inductor is exported to detection signal in micro-control unit through after amplification filtering again, micro-control unit judges whether this signal reaches the signal threshold values of setting, if reach signal threshold values, enter next step, if do not reach signal threshold values, return to step S1;
S3, micro-control unit is opened camera assembly and is taken the also difference of contrast image data front and back frame, if the difference existing reaches the signal threshold values of setting, enters next step, if do not reach signal threshold values, allows camera assembly shut down and returns to step S1;
S4, micro-control unit continues to shoot with video-corder by camera assembly, and micro-control unit enters mode of operation by data transmission module simultaneously, and allows its image data that camera assembly is shot with video-corder transfer in server.
Further, after step S4, further comprising the steps of:
S5, when image data is by after the data transmission module end of transmission, returns to step S1, and data transmission module enters the park mode of holding state, camera assembly shutdown.
Further, in step S4, if a little less than infrared inductor senses that external environment light, micro-control unit controls light source part carries out light filling; And if infrared inductor senses that external environment light is stronger, micro-control unit is closed light source part, controls filter part simultaneously and filters.
The present invention's beneficial effect is compared with prior art:
(1) infrared inductor is installed in the present invention additional on web camera, in the time that detecting mobile object, infrared inductor just can carry out track up extraneous circumstance with camera assembly, and can image data be sent to server with data transmission module, in other situations, camera assembly is in resting state, and data transmission module is in battery saving mode, this has saved electric energy, reduced taking Internet resources simultaneously, also improved the useful life of web camera, do not need to take a large amount of memory space of server simultaneously, reach the object of the cost that reduces the long-term monitoring of web camera, occurring that monitoring is extremely need to transfer crucial image data information time, do not need to spend a large amount of manpowers and time to search and screen related content in a large amount of image data information of accumulation, improve the efficiency of work.
(2) web camera of the present invention is in the time that infrared inductor detects mobile object, first judge whether the signal of infrared inductor reaches the signal threshold values of setting, if reach threshold values, before and after will capturing image data contrast image data with camera assembly, whether frame there are differences, if there are differences the signal threshold values that reaches setting, just can carry out image data transmission with data transmission module, in whole process, need to carry out twice judgement, use two signal threshold values as criterion, greatly improve the judging nicety rate to mobile object, reduce to greatest extent the situation of erroneous judgement.
Accompanying drawing explanation
Fig. 1 is the system block diagram of the first embodiment web camera;
Fig. 2 is the control method flow chart of the first embodiment web camera;
Fig. 3 is the system block diagram of the second embodiment web camera.
Embodiment
In order to more fully understand technology contents of the present invention, below in conjunction with specific embodiment, technical scheme of the present invention is described further and is illustrated.
The first embodiment
The internet protocol camera system block diagram of first embodiment of the invention as shown in Figure 1.
Web camera includes:
For controlling the micro-control unit 10 of web camera workflow, its model is MSP430F5172;
Connect with micro-control unit 10, for shooting with video-corder extraneous image and generating the camera assembly of corresponding image data, camera assembly comprises the image sensor 22 for external optical signals being converted to picture signal and the digital signal processing unit 21 of processing for the picture signal that image sensor 22 is transmitted, image sensor 22 is CMOS image sensor 22, its model is OV9712, and the model of digital signal processing unit 21 is OV788;
For the infrared inductor 11 of inducing moving objects, infrared inductor 11 connects micro-control unit 10 by filtering and amplifying circuit 12, particularly, in the first embodiment, infrared inductor 11 adopts pyroelectric infrared sensor, and what infrared inductor 11 was monitored is mobile hot object;
Be connected, transfer to for the image data that camera assembly is transmitted the data transmission module 30 of server with micro-control unit 10, particularly, data transmission module 30 transmits image data to server by wireless transmission method, in the first embodiment, data transmission module 30 is Wi-Fi module, and its model is BCM4334.
In addition, micro-control unit 10 is also connected with WPS switch 13, power supply 40 and debug serial port 14; Digital signal processing unit 21 is also connected with SPIFLASH and SDRAM.Wherein, SPIFLASH model is W25Q32DW, and SDRAM model is W987D6HB.
The control method of the web camera of the present embodiment, comprises the following steps, particular flow sheet as shown in Figure 2:
Step S1, web camera is in holding state, and infrared inductor is in monitoring pattern, and data transmission module is in park mode, and camera assembly is in shutdown mode;
Step S2, when infrared inductor has sensed mobile object, infrared inductor is exported to detection signal in micro-control unit through after amplification filtering again, micro-control unit judges whether this signal reaches the signal threshold values of setting, if reach signal threshold values, enter next step, if do not reach signal threshold values, return to step S1;
Step S3, micro-control unit is opened camera assembly and is taken the also difference of contrast image data front and back frame, if the difference existing reaches the signal threshold values of setting, enters next step, if do not reach signal threshold values, allow camera assembly shut down and return to step S1;
Step S4, micro-control unit continues to shoot with video-corder by camera assembly, and micro-control unit enters mode of operation by data transmission module simultaneously, and allows its image data that camera assembly is shot with video-corder transfer in server;
Step S5, when image data is by after the data transmission module end of transmission, returns to step S1, and data transmission module enters the park mode of holding state, camera assembly shutdown.
Wherein, in step S2, the signal that micro-control unit is first transferred to infrared inductor micro-control unit carries out A/D conversion, and then judges whether it reaches the signal threshold values of setting.
Wherein, in step S3, camera assembly is captured front and back two frame image datas and is contrasted.
The second embodiment
As shown in Figure 3, the second embodiment is with the difference of the first embodiment: web camera also comprises the light adjusting part being connected with micro-control unit 50.Light adjusting part includes: light-sensitive element 71, for the light source part of light filling and for the filter part of infrared filtering.Particularly, light-sensitive element 71 is phototriode.Light source part comprises that infrared LED 72 and LED drive 73.Filter part comprises that infrared fileter 74 and filter drive 75.On digital signal processing unit 61, be connected with USB interface 63, this USB interface 63 can be for debugging.
The web camera of the second embodiment can be realized round-the-clock monitoring.Carrying out (the step S4 of the first embodiment) in monitoring camera-shooting process, if a little less than infrared inductor 51 senses that external environment light, micro-control unit 50 is controlled light source part and carried out light filling; And if infrared inductor 51 senses that external environment light is stronger, 50 of micro-control units are closed light source part, control filter part simultaneously and filter.
Particularly, in the time that infrared inductor 51 senses that external environment light is weak, filter drives 75 to close IR-CUT, and infrared LED 72 can be opened light filling, thereby does not affect the monitoring under the weak or dark condition of ambient light, guarantees to monitor the quality of image.In the time that infrared inductor 51 senses that external environment light is stronger, filter drives 75 to open IR-CUT, infrared fileter 74 carries out filtering to the infrared light in surround lighting, thereby weakens the ambient light intensity entering in image sensor 62, thereby guarantees to monitor the quality of image.It is AP1511B that the IR-CUT wherein adopting drives model.
More than statement only further illustrates technology contents of the present invention with embodiment, so that reader is easier to understand, but does not represent that embodiments of the present invention only limit to this, and any technology of doing according to the present invention is extended or recreation, is all subject to protection of the present invention.
Claims (8)
1. a web camera, includes:
For controlling the micro-control unit of web camera workflow;
Connect with described micro-control unit, for shooting with video-corder extraneous image and generating the camera assembly of corresponding image data;
Be connected, transfer to for the image data that camera assembly is transmitted the data transmission module of server with described micro-control unit;
It is characterized in that, also include:
For the infrared inductor of inducing moving objects;
The filtering and amplifying circuit being connected with described micro-control unit and infrared inductor respectively.
2. web camera as claimed in claim 1, it is characterized in that, described camera assembly comprises the digital signal processing unit for external optical signals being converted to the image sensor of picture signal and processing for the picture signal that image sensor is transmitted.
3. web camera as claimed in claim 1, is characterized in that, described data transmission module transmits image data to server by wireless transmission method.
4. the web camera as described in claims 1 to 3 any one, is characterized in that, described web camera also comprises the light adjusting part being connected with described micro-control unit.
5. web camera as claimed in claim 4, is characterized in that, described light adjusting part includes: light-sensitive element, for the light source part of light filling and for the filter part of infrared filtering.
6. a control method for web camera, is characterized in that, comprises the following steps:
S1, web camera is in holding state, and infrared inductor is in monitoring pattern, and data transmission module is in park mode, and camera assembly is in shutdown mode;
S2, when infrared inductor has sensed mobile object, infrared inductor is exported to detection signal in micro-control unit through after amplification filtering again, micro-control unit judges whether this signal reaches the signal threshold values of setting, if reach signal threshold values, enter next step, if do not reach signal threshold values, return to step S1;
S3, micro-control unit is opened camera assembly and is taken the also difference of contrast image data front and back frame, if the difference existing reaches the signal threshold values of setting, enters next step, if do not reach signal threshold values, allows camera assembly shut down and returns to step S1;
S4, micro-control unit continues to shoot with video-corder by camera assembly, and micro-control unit enters mode of operation by data transmission module simultaneously, and allows its image data that camera assembly is shot with video-corder transfer in server.
7. the control method of web camera as claimed in claim 6, is characterized in that, after step S4, further comprising the steps of:
S5, when image data is by after the data transmission module end of transmission, returns to step S1, and data transmission module enters the park mode of holding state, camera assembly shutdown.
8. the control method of web camera as claimed in claim 6, is characterized in that, in step S4, if a little less than infrared inductor senses that external environment light, micro-control unit controls light source part carries out light filling; And if infrared inductor senses that external environment light is stronger, micro-control unit is closed light source part, controls filter part simultaneously and filters.
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| CN104811595A (en) * | 2015-04-08 | 2015-07-29 | 合肥君正科技有限公司 | Network monitor camera and working method thereof |
| CN105163095A (en) * | 2015-10-16 | 2015-12-16 | 湖南智慧平安科技有限公司 | Human body object monitoring method for remote locations |
| CN105306878A (en) * | 2014-07-10 | 2016-02-03 | 中国科学院上海高等研究院 | Internet of things coprocessing monitor camera system |
| CN105959517A (en) * | 2016-05-20 | 2016-09-21 | 广州市艾乐特电子科技有限公司 | Infrared detection smart start camera |
| CN106488184A (en) * | 2016-09-22 | 2017-03-08 | 深圳市共进电子股份有限公司 | Networkmonitor |
| CN106657916A (en) * | 2016-12-30 | 2017-05-10 | 武汉亿文光电设备有限公司 | Intelligent solar endurance monitoring method and system |
| CN107347126A (en) * | 2016-05-04 | 2017-11-14 | 杭州登虹科技有限公司 | The method of Configuration network camera |
| CN108282641A (en) * | 2018-03-22 | 2018-07-13 | 深圳市邻友通科技发展有限公司 | monitoring device, monitoring base station and monitoring system |
| CN108881705A (en) * | 2017-05-15 | 2018-11-23 | 杭州海康威视数字技术股份有限公司 | A kind of camera control unit and video camera |
| CN109151395A (en) * | 2018-10-11 | 2019-01-04 | 广州市九安智能技术股份有限公司 | A kind of wireless video monitoring method thereof and system based on radio network gateway |
| CN110378216A (en) * | 2019-06-13 | 2019-10-25 | 浙江大华技术股份有限公司 | Object detection method, device, picture pick-up device and storage medium |
| CN111491129A (en) * | 2019-01-29 | 2020-08-04 | 深圳市共进电子股份有限公司 | Network monitoring system, router operation method and device and router |
| CN111917974A (en) * | 2020-06-24 | 2020-11-10 | 济南浪潮高新科技投资发展有限公司 | FPGA-based video processing system, method, device and medium |
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| CN105306878A (en) * | 2014-07-10 | 2016-02-03 | 中国科学院上海高等研究院 | Internet of things coprocessing monitor camera system |
| CN104811595A (en) * | 2015-04-08 | 2015-07-29 | 合肥君正科技有限公司 | Network monitor camera and working method thereof |
| CN105163095A (en) * | 2015-10-16 | 2015-12-16 | 湖南智慧平安科技有限公司 | Human body object monitoring method for remote locations |
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| CN105959517B (en) * | 2016-05-20 | 2018-12-18 | 广州市艾乐特电子科技有限公司 | A kind of infrared acquisition intelligent starting video camera |
| CN105959517A (en) * | 2016-05-20 | 2016-09-21 | 广州市艾乐特电子科技有限公司 | Infrared detection smart start camera |
| CN106488184A (en) * | 2016-09-22 | 2017-03-08 | 深圳市共进电子股份有限公司 | Networkmonitor |
| CN106657916A (en) * | 2016-12-30 | 2017-05-10 | 武汉亿文光电设备有限公司 | Intelligent solar endurance monitoring method and system |
| CN108881705A (en) * | 2017-05-15 | 2018-11-23 | 杭州海康威视数字技术股份有限公司 | A kind of camera control unit and video camera |
| CN108282641A (en) * | 2018-03-22 | 2018-07-13 | 深圳市邻友通科技发展有限公司 | monitoring device, monitoring base station and monitoring system |
| CN109151395A (en) * | 2018-10-11 | 2019-01-04 | 广州市九安智能技术股份有限公司 | A kind of wireless video monitoring method thereof and system based on radio network gateway |
| CN111491129A (en) * | 2019-01-29 | 2020-08-04 | 深圳市共进电子股份有限公司 | Network monitoring system, router operation method and device and router |
| CN110378216A (en) * | 2019-06-13 | 2019-10-25 | 浙江大华技术股份有限公司 | Object detection method, device, picture pick-up device and storage medium |
| CN110378216B (en) * | 2019-06-13 | 2022-03-01 | 浙江大华技术股份有限公司 | Target detection method, target detection device, image pickup apparatus, and storage medium |
| CN111917974A (en) * | 2020-06-24 | 2020-11-10 | 济南浪潮高新科技投资发展有限公司 | FPGA-based video processing system, method, device and medium |
| CN111917974B (en) * | 2020-06-24 | 2022-04-15 | 山东浪潮科学研究院有限公司 | FPGA-based video processing system, method, device and medium |
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