CN202750169U - Network video server - Google Patents
Network video server Download PDFInfo
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- CN202750169U CN202750169U CN2012204358591U CN201220435859U CN202750169U CN 202750169 U CN202750169 U CN 202750169U CN 2012204358591 U CN2012204358591 U CN 2012204358591U CN 201220435859 U CN201220435859 U CN 201220435859U CN 202750169 U CN202750169 U CN 202750169U
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Abstract
The utility model relates to a network video server comprising: audio frequency video interfaces receiving audio frequency video signals; an electric current loop module amplifying current signals transmitted by sensors and converting the current signals to digital signals; a processing system processing the audio frequency video signals and the sensor digital signals; and a network module employing a wire or wireless mode to transmit the audio frequency video signals and the sensor digital signals to the network. In the network video server, information collected by sensors is transmitted to the electric current loop module through current signals, the current signals are converted to the digital signals by the electric current loop module, images, audio frequencies, and data of the sensors are together transmitted to a local area network or the internet through the wire or wireless mode, a remote client side separates the audio and video signals from the sensor data through terminals like a PC machine and the like, single network transmission of the audio and video and sensor data is realized, cable consumption is reduced, cost is saved, and great conveniences are brought to equipment installation, later stage maintenance, and expansion.
Description
Technical field
The utility model relates to the monitoring field, relates in particular to a kind of network video server.
Background technology
The characteristics such as network video server is changeable with its flexible arrangement as the equipment that makes up supervisory control system, manageability are widely used in the various monitoring fields such as traffic monitoring, security monitoring, video conference, industrial monitoring in recent years.Have some fields to require also to require the Real Time Monitoring site environment to change except monitoring on-the-spot picture, such as humiture, poisonous in the air, explosion hazard gases content, and smog etc. show and record in real time, when need being convenient to the analysis of on-the-spot situation of change.
In industry spot, come conditioning and the transmission of long line of settling signal with an instrument amplifier, can produce following problem: the first, because the signal of transmission is voltage signal, transmission line can be subject to the interference of noise; The second, the distributed resistance of transmission line can produce voltage drop; The 3rd, the operating voltage how instrument amplifier is provided at the scene also is a problem.And in traditional picture and the environmental monitoring system formation, the monitoring of image and environment is the system of two separation, and transmission also is the circuit that adopts two separation, and the problem of bringing like this is to cause the whole system cost high, circuit is many, wiring inconvenience, poor stability etc.
The utility model content
Main purpose of the present utility model is to provide a kind of network video server, be intended to solve in traditional picture and the environmental monitoring system formation, the monitoring of image and environment is the system of two separation, and transmission also is the circuit that adopts two separation, cause the whole system cost high, circuit is many, and wiring is inconvenient, the problem of poor stability.
The utility model is achieved in that a kind of network video server, and input is connected with audio frequency and video input and transducer respectively, and output is connected to the network, comprising:
Be connected the audio frequency and video interface of audio reception vision signal with described audio frequency and video input;
Be connected with described transducer, the current signal that transducer is imported into amplifies and converts to the electric current loop module of digital signal;
Be connected the treatment system that described AV signal and transducer digital signal are processed with described audio frequency and video interface and electric current loop module;
With described treatment system and network connection, adopt wired or wireless mode to be transferred to the network of network module described AV signal and transducer digital signal.
In the said structure, described electric current loop module is the 4-20mA electric current loop.
In the said structure, described electric current loop module comprises:
Be connected the operational amplifier that the current signal that transducer is imported into amplifies with described transducer;
Be connected with described operational amplifier, the sensor signal after amplifying converted to the AD converter of digital signal;
Be connected with described operational amplifier and AD converter, be the power supply of described operational amplifier and AD converter power supply.
In the said structure, described operational amplifier is the isolation operational amplifier.
In the said structure, described power supply is full insulating power supply.
In the utility model, added the electric current loop module, the information exchange overcurrent signal access electric current loop module that transducer gathers, be converted into digital signal by the electric current loop module, and by wired or wireless with image, the data of audio frequency and transducer are access to LAN or the Internet in the lump, Terminal Server Client is separated audio-video signal and sensing data by terminals such as PCs, can check and record these data, realized that audio frequency and video and sensing data single network transmit, reduced cable, saved cost, equipment is installed, later maintenance and expansion bring great convenience, because be that digital signal transmits, jamming-proof ability also is improved to a great extent.
Description of drawings
Fig. 1 is the structured flowchart of the network video server that provides of the utility model embodiment;
Fig. 2 is the structured flowchart of the electric current loop module that provides of the utility model embodiment.
Embodiment
In order to make the purpose of this utility model, principle and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
In the utility model, by adding electric current loop module 300, the current signal that transducer is imported into amplifies and converts digital signal to, reduced cable, saved cost, equipment installation, later maintenance and expansion are brought great convenience, and jamming-proof ability also is improved to a great extent.
Fig. 1 shows the concrete structure of the network video server that the utility model embodiment provides, and for convenience of explanation, only shows the part relevant with the utility model, and details are as follows.
The utility model is achieved in that a kind of network video server, and input is connected with audio frequency and video input and transducer respectively, and output is connected to the network, comprising:
Be connected the audio frequency and video interface 100 of audio reception vision signal with described audio frequency and video input;
Be connected with described transducer, the current signal that transducer is imported into amplifies and converts to the electric current loop module 300 of digital signal;
Be connected the treatment system 200 that described AV signal and transducer digital signal are processed with described audio frequency and video interface 100 and electric current loop module 300;
With described treatment system 200 and network connection, adopt wired or wireless mode to be transferred to network of network module 400 described AV signal and transducer digital signal.
As the utility model one embodiment, described electric current loop module 300 is the 4-20mA electric current loop.
Fig. 2 shows the concrete structure of the electric current loop module 300 that the utility model embodiment provides, and for convenience of explanation, only shows the part relevant with the utility model, and details are as follows.
As the utility model one embodiment, described electric current loop module 300 comprises:
Be connected the operational amplifier 303 that the current signal that transducer is imported into amplifies with described transducer;
Be connected with described operational amplifier 303, the sensor signal after amplifying converted to the AD converter 302 of digital signal;
Be connected with described operational amplifier 303 and AD converter 302, be the power supply 301 of described operational amplifier 303 and AD converter 302 power supplies.
As the utility model one embodiment, described operational amplifier 303 is isolation operational amplifier 303.
As the utility model one embodiment, described power supply 301 is full insulating power supply 301.
In the utility model, 4～20mA electric current loop can guarantee that the safety of electric current loop module and network video server is not by strong current damage.So long as the transducer of support standard 4～20mA output can link to each other with this module, convert current signal to voltage signal by sampling resistor, isolate amplification by isolation amplifier, and then process AD sample conversion becomes digital signal, send into treatment system, pack with data such as video/audios and sent by network interface.
In the utility model, added the electric current loop module, the information exchange overcurrent signal access electric current loop module that transducer gathers, be converted into digital signal by the electric current loop module, and by wired or wireless with image, the data of audio frequency and transducer are access to LAN or the Internet in the lump, Terminal Server Client is separated audio-video signal and sensing data by terminals such as PCs, can check and record these data, realized that audio frequency and video and sensing data single network transmit, reduced cable, saved cost, equipment is installed, later maintenance and expansion bring great convenience, because be that digital signal transmits, jamming-proof ability also is improved to a great extent.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (5)
1. network video server, input are connected with audio frequency and video input and transducer respectively, and output is connected to the network, it is characterized in that, described network video server comprises:
Be connected the audio frequency and video interface of audio reception vision signal with described audio frequency and video input;
Be connected with described transducer, the current signal that transducer is imported into amplifies and converts to the electric current loop module of digital signal;
Be connected the treatment system that described AV signal and transducer digital signal are processed with described audio frequency and video interface and electric current loop module;
With described treatment system and network connection, adopt wired or wireless mode to be transferred to the network of network module described AV signal and transducer digital signal.
2. network video server as claimed in claim 1 is characterized in that, described electric current loop module is the 4-20mA electric current loop.
3. network video server as claimed in claim 1 or 2 is characterized in that, described electric current loop module comprises:
Be connected the operational amplifier that the current signal that transducer is imported into amplifies with described transducer;
Be connected with described operational amplifier, the sensor signal after amplifying converted to the AD converter of digital signal;
Be connected with described operational amplifier and AD converter, be the power supply of described operational amplifier and AD converter power supply.
4. network video server as claimed in claim 3 is characterized in that, described operational amplifier is the isolation operational amplifier.
5. network video server as claimed in claim 4 is characterized in that, described power supply is full insulating power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204358591U CN202750169U (en) | 2012-08-30 | 2012-08-30 | Network video server |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204358591U CN202750169U (en) | 2012-08-30 | 2012-08-30 | Network video server |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202750169U true CN202750169U (en) | 2013-02-20 |
Family
ID=47709516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204358591U Expired - Fee Related CN202750169U (en) | 2012-08-30 | 2012-08-30 | Network video server |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202750169U (en) |
-
2012
- 2012-08-30 CN CN2012204358591U patent/CN202750169U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20130220 Termination date: 20160830 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |