CN203872255U - Network camera - Google Patents
Network camera Download PDFInfo
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- CN203872255U CN203872255U CN201420041491.XU CN201420041491U CN203872255U CN 203872255 U CN203872255 U CN 203872255U CN 201420041491 U CN201420041491 U CN 201420041491U CN 203872255 U CN203872255 U CN 203872255U
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- network interface
- control chip
- main control
- power
- web camera
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Abstract
The utility model is suitable for the technical field of video monitoring, and provides a network camera. The camera comprises an image sensor, a video encoder module, a main control chip, a power supply control circuit, and a power-off protective circuit. The camera is characterized by comprising a first network access and a second network access. The image sensor is in electric connection with the main control chip through the video encoder module. One end of the power-off protective circuit is in electric connection with the main control chip, and other end of the power-off protective circuit is in electric connection with the main control chip through the second network access. The input end of the power supply input circuit is in electric connection with the first network access, and the output end of the power supply input circuit is in electric connection with the second network access. With the above technical scheme, wiring operation in the networking process is simple, video transmission is stable, cost is low, and good practicality is achieved.
Description
Technical field
The utility model belongs to technical field of video monitoring, relates in particular to a kind of web camera.
Background technology
Along with scientific and technological development, Network Video Surveillance technology has also obtained application more and more widely.At present, the networking of general network shooting is to realize by switch or network transceivers mostly, common web camera, conventionally all comprise a network interface and a power interface, power interface is the internal circuit power supply to general network video camera by power control circuit, and network interface is by Ethernet transmission channel and audio-video interface connecting sensor module.This kind of web camera mostly adopts star net forming structure or chain type and ring type networking structure in the time arranging net; but often there is the shortcoming that construction wiring difficulty is large, system cost is high in general network video camera in actual applications; and due to general network video camera five power-off protection functions; once if the switch power-off being connected with general network video camera, the problem that can cause monitor video to transmit.
Therefore, on market, be badly in need of a kind of networking convenient, construction be easy to web camera.
Summary of the invention
The purpose of this utility model is to provide a kind of web camera, when being intended to solve existing web camera networking, construct numerous and diverse, cost is high and the unsettled problem of transmission of video.
The utility model is to realize like this, a kind of web camera, comprise imageing sensor, video encoder module, main control chip, power control circuit, power-off protecting circuit, described web camera comprises the first network interface and the second network interface, wherein: described imageing sensor is electrically connected described main control chip by video encoder module, one end of described power-off protecting circuit is electrically connected described main control chip by described the first network interface, and the other end is connected and is electrically connected described main control chip by described the second network interface; The input of described power control circuit is electrically connected described the first network interface, and output is electrically connected described the second network interface.
Preferably, described the first network interface and the second network interface are Ethernet interface.
Preferably, described video encoder module is to support the H.264 video encoder module of reference format.
Preferably, described main control chip is on-site programmable gate array FPGA (Field-Programmable Gate Array, field-programmable information gate array) control chip.
Web camera disclosed in the utility model, has cancelled power interface, and has two network interfaces, in two network interfaces, supports power supply input for one, and another supports power supply output.And owing to being provided with power-off protecting circuit, therefore realize in the time of localpower fault, transmitting uplink data is passed through with downlink data transmission passage straight-through, avoided the video causing due to power-off cannot upload problem.
Brief description of the drawings
The web camera overall structure block diagram that Fig. 1 provides for the utility model embodiment.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Refer to Fig. 1, the web camera overall structure block diagram providing for the utility model embodiment.As seen from Figure 1, the web camera that the utility model embodiment provides, comprise imageing sensor 10, video encoder module 20, main control chip 30 and power control circuit 40, imageing sensor 10 is electrically connected main control chip 30 by video encoder module 20, and main control chip 30 is electrically connected respectively the first network interface 50 and the second network interface 70, conventionally, main control chip 30 is electrically connected the first network interface 50 by physical chip and transformer, is electrically connected the second network interface 70 by physical chip and transformer; One end of power-off protecting circuit 60 is electrically connected the first network interface 50, and the other end is electrically connected the second network interface 70; The input of power control circuit 40 is electrically connected the first network interface 50, and output is electrically connected the second network interface 70.In the present embodiment, the first network interface 50 is supported power supply input, and the second network interface 70 is supported power supply output.The power supply link of the first network interface 50, the second network interface 70 and power control circuit 40 network consisting video cameras, for powering and primary network station video camera power supply downwards to the circuit of web camera inside.The data transmission link of the common network consisting shooting of imageing sensor 10, video encoder module 20, main control chip 30, the first network interface 50, power-off protecting circuit 60 and the second network interface 70.Main control chip 30 is fpga chip.Video encoder module 20 is for changing into the video data of reception the discernible video data encoder of main control chip 30, and recommendation can change into video data the H.264 video encoder module of form in the present embodiment.
Provide when the present embodiment web camera networking work time, the image that imageing sensor 10 gathers is after 20 compressions of video encoder module, by the video information transmission after compression, to main control chip 30, the next stage network shooting machine data that main control chip 30 receives by the video data of the first network interface 50 receiver, video coder module 20 and by the second network interface 70 upwards one-level transmits; Main control chip 30 is directly transferred to the data of the upper level network receiving by the first network interface 50 respectively video encoder module 20 and is transferred to next stage web camera by the second network interface 70 by transmission destination simultaneously.
The web camera providing due to the embodiment of the present invention is provided with power-off protecting circuit; therefore while making web camera networking work, there is the function of power-off protection; in the time of internal electric source fault; power-off protecting circuit makes the first network interface 50 lead directly to and be communicated with the second network interface 70; disconnection main control chip 30 is connected with the first network interface 50 and the second network interface 70, thereby the network data transmission of guarantee upper level network data and next stage is not interrupted.Therefore in the time of networking, if two network interface Internet video video cameras of whole piece link possess link power-off protection function, in the time that the web camera of one of them node breaks down, do not affect the video passback of subsequent node web camera.Certainly, in the present embodiment, the function of the first network interface and the second network interface can be exchanged, and does not affect function and the use of web camera completely.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any amendments of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection range of the present utility model.
Claims (4)
1. a web camera, comprise imageing sensor, video encoder module, main control chip, power control circuit, power-off protecting circuit, is characterized in that, described web camera comprises the first network interface and the second network interface, wherein: described imageing sensor is electrically connected described main control chip by video encoder module, one end of described power-off protecting circuit is electrically connected described main control chip by described the first network interface, and the other end is connected and is electrically connected described main control chip by described the second network interface; The input of described power control circuit is electrically connected described the first network interface, and output is electrically connected described the second network interface.
2. web camera according to claim 1, is characterized in that, described the first network interface and the second network interface are Ethernet interface.
3. web camera according to claim 1, is characterized in that, described video encoder module is to support the H.264 video encoder module of reference format.
4. web camera according to claim 1, is characterized in that, described main control chip is on-site programmable gate array FPGA control chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420041491.XU CN203872255U (en) | 2014-01-23 | 2014-01-23 | Network camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420041491.XU CN203872255U (en) | 2014-01-23 | 2014-01-23 | Network camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203872255U true CN203872255U (en) | 2014-10-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420041491.XU Expired - Fee Related CN203872255U (en) | 2014-01-23 | 2014-01-23 | Network camera |
Country Status (1)
| Country | Link |
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| CN (1) | CN203872255U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105472325A (en) * | 2015-11-20 | 2016-04-06 | 武汉微创光电股份有限公司 | Method for dual protection during network video monitoring |
| CN111179317A (en) * | 2020-01-04 | 2020-05-19 | 阔地教育科技有限公司 | Interactive teaching system and method |
| WO2020164314A1 (en) * | 2019-02-15 | 2020-08-20 | 广州视源电子科技股份有限公司 | Network camera, and recording and streaming system |
-
2014
- 2014-01-23 CN CN201420041491.XU patent/CN203872255U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105472325A (en) * | 2015-11-20 | 2016-04-06 | 武汉微创光电股份有限公司 | Method for dual protection during network video monitoring |
| WO2020164314A1 (en) * | 2019-02-15 | 2020-08-20 | 广州视源电子科技股份有限公司 | Network camera, and recording and streaming system |
| CN111179317A (en) * | 2020-01-04 | 2020-05-19 | 阔地教育科技有限公司 | Interactive teaching system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141008 Termination date: 20210123 |