CN1310490C - A network digital camera system and method thereof - Google Patents
A network digital camera system and method thereof Download PDFInfo
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- CN1310490C CN1310490C CNB031242138A CN03124213A CN1310490C CN 1310490 C CN1310490 C CN 1310490C CN B031242138 A CNB031242138 A CN B031242138A CN 03124213 A CN03124213 A CN 03124213A CN 1310490 C CN1310490 C CN 1310490C
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- 238000012545 processing Methods 0.000 claims abstract description 21
- 230000005540 biological transmission Effects 0.000 claims abstract description 17
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- 238000007906 compression Methods 0.000 claims abstract description 12
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Abstract
The present invention relates to a network digital camera system which comprises a network digital camera end, a public switched telephone network and an Internet switch-in end, wherein the network digital camera end comprises a digital camera part and a communication control part. The communication control part is composed of a picture transmission protocol processing unit which is linked to a picture pattern compression processing unit in the digital camera and an FSK modem which is linked to the picture transmission protocol processing unit. The Internet switch-in end is composed of an FSK access server which is linked to the public switched telephone network and a picture pattern access server which is linked to the FSK access server. Because FSK which is a cheapest modem is used for communicating with the server in the system of the utility model, and complicated functions are all placed on the server, the cost of camera equipment terminal is greatly reduced, and the cost performance ratio of the overall system is advanced. In addition, the present invention also discloses a method for transferring image data to internets through public exchange telephone networks.
Description
Affiliated field
The invention belongs to digital camera field, specifically, the present invention relates to a kind of network digital camera system and method thereof that connects the internet by public switched telephone network (PSTN).
Background technology
Fast development along with science and technology, digital camera just little by little is used to various fields, existing network digital camera system by public switched telephone network and Internet connection in the prior art, it normally comprises network digital camera, public switched telephone network and the Internet access server that can connect public switched telephone network.Wherein, comprise in the described network digital camera being used for the part that is connected with the internet by public switched telephone network that this part comprises an ICP/IP protocol processing unit and a modulator-demod.
As shown in Figure 1, camera lens and imageing sensor 11 convert picture signal to digital signal, image digital signal is compressed into the packed data of JPEG (joint image coding expert group) or extended formatting through image Compression unit 12 after colour correction and the gamma correction, and store image storage unit 15 into, requirement according to ICP/IP protocol, ICP/IP protocol processing unit 14 connects by modulator-demod 13 and public switched telephone network 10 and Internet access server 16, finishes access with the Internet network by the Internet access server again.
But this network digital camera system that realizes by above-mentioned technology exists some unsatisfactory places:
At first, in above-mentioned network digital camera, must have an ICP/IP protocol processing unit to carry out and the Internet between the unification of host-host protocol rule, yet, ICP/IP protocol is a very complicated agreement, realize that this agreement needs a lot of code and memory space, and CPU just can finish faster, and this requirement to whole camera is relatively very high;
And, also need a modulator-demod to come the data of needs transmission are modulated in the device, and the price of modulator-demod is also very expensive now, the cost of camera apparatus end increases relatively in the system, when the quantity of network digital camera in the system was very big, the cost of whole system can be very big.
Summary of the invention
The purpose of this invention is to provide a kind of solution of having avoided the network digital camera system of above-mentioned shortcoming, the present invention is achieved in that
A kind of network digital camera system, comprise one or more network digital camera ends that connect public switched telephone network, public switched telephone network, the Internet incoming end that is connected with public switched telephone network, wherein said network digital camera end comprises digital camera part and Communication Control part, described Communication Control part is carried out communication by public switched telephone network and the Internet, described Communication Control part is by a video transmission protocol processing unit that links to each other with image Compression unit in the digital camera, and FSK (frequency shift keying) modulator-demodulator formation that links to each other with described video transmission protocol processing unit, and described FSK modulator-demodulator links to each other with public switched telephone network by telephone wire; Described Internet incoming end is made of with the image access server that links to each other with described FSK access server a FSK access server that is connected with public switched telephone network.
The camera lens and the imageing sensor of digital camera are converted to digital signal to picture signal, and image digital signal is compressed by the image Compression unit, view data after the compression leaves in the image storage unit of digital camera, when needs are transferred on the internet by public switched telephone network, just by described video transmission protocol processing unit by appointment agreement view data carried out subpackage handle, carry out encoding process after telephone wire transfers data on the public switched telephone network by described FSK modulator-demodulator then; Pass through public switched telephone network, those data are sent on the described FSK access server that is connected with public switched telephone network, by the FSK access server the described view data that sends through public switched telephone network is carried out the FSK decoding, and decoded view data passed to described image reception server, described image reception server links to each other with the Internet network by the Internet gateway.
Network digital camera end of the present invention can further include the signal that links to each other with above-mentioned FSK modulator-demodulator and receives detecting unit, and described signal receives detecting unit and also links to each other with camera shooting control circuit in the digital camera.After the shooting control signal that sends through public telephone network was by the FSK modem processes, described signal received detecting unit and detects this signal, and the magazine shooting control circuit of logarithmic code sends the shooting operation that dependent instruction comes the control chart picture then.
FSK modulator-demodulator in the above-mentioned network digital camera end of the present invention and the also available DTMF modulator-demodulator of the FSK access server in the Internet incoming end and DTMF access server are realized.
A kind of network digital camera system comprises the following steps: by the method that public switched telephone network is connected with the internet
The first, what will need the data that transmit in network digital camera carries out subpackage and FSK encoding process, and the fsk signal that generates is sent to public switched telephone network through telephone wire;
The second, by public switched telephone network data are sent to the Internet incoming end;
The 3rd, at the Internet incoming end the described data that send through public switched telephone network are carried out the FSK decoding, and decoded data are passed to the Internet network.
A kind of method of taking by public switched telephone network and internet Control Network digital camera comprises the following steps:
The first, send a control command by the internet to the network digital camera end;
The second, above-mentioned control command is sent to public switched telephone network after the Internet incoming end is carried out the FSK coding;
The 3rd, the network digital camera end carries out the FSK decoding to the described control command that sends through public switched telephone network;
The 4th, the network digital camera end carries out shooting operation according to the camera shooting control circuit that detected control command is further controlled in the digital camera.
A kind of method of coming the Control Network digital camera to take by public switched telephone network comprises the following steps:
The first, send a control command by public switched telephone network to the network digital camera end;
The second, the network digital camera end carries out the FSK decoding to the described control command that sends through public switched telephone network;
The 3rd, the network digital camera end carries out shooting operation according to the camera shooting control circuit that detected control command is further controlled in the digital camera.
With respect to prior art, the invention has the advantages that:
In network digital camera of the present invention system, in camera apparatus end the simplest only integrated transmission means, come and the server communication with FSK the most cheap this modulator-demodulator, complicated function for example all is placed on the server with being connected of Internet network, so, just can pass through the telephone wire transmit image data with simple video transmission protocol, just can realize with slower CPU and less code, this mode has reduced the cost of camera apparatus end, and the ratio of performance to price of whole system is improved.
Above and other objects of the present invention, feature and advantage are from below in conjunction with accompanying drawing be not will become more obvious the specific descriptions of certain embodiments.
Description of drawings
Fig. 1 is the schematic diagram of mechanism of network digital camera in the prior art;
Fig. 2 is the structure diagram of system embodiment one of the present invention;
Fig. 3 is the structure diagram of system embodiment two of the present invention.
Embodiment
In the following description, known function or structure will no longer describe in detail, to avoid there be unnecessary obscuring with content of the present invention.
As shown in Figure 2, it is the structure diagram of a network digital camera embodiment of system of the present invention, comprise one or more network digital camera ends 100 that connect public switched telephone network, public switched telephone network 10, the Internet incoming end 200 that is connected with public switched telephone network, wherein: described network digital camera end 100 comprises and is used for the part that is connected with Internet network 30 by public switched telephone network 10, this part comprises a video transmission protocol processing unit 24 that links to each other with image Compression unit 22 in the digital camera, and a FSK modulator-demodulator 23 that links to each other with described video transmission protocol processing unit 24, and described FSK modulator-demodulator 23 links to each other with public switched telephone network 10 by telephone wire; Described Internet incoming end 200 is made of with the image access server 27 that links to each other with described FSK access server 26 a FSK access server 26 that is connected with public switched telephone network 10.
The camera lens of described network digital camera and imageing sensor 21 are converted to digital signal to picture signal, and image digital signal is compressed by image Compression unit 22, data volume after the compression can significantly reduce, compression algorithm can be JPEG, view data after the compression leaves in the image storage unit 25 of digital camera, when needs are transferred on the internet by public switched telephone network 10, the above-mentioned video transmission protocol processing unit 24 agreement view data that will need to transmit by appointment carries out subpackage and handles, data after being handled by 23 pairs of above-mentioned subpackages of FSK modulator-demodulator are then carried out encoding process, and the fsk signal that generates is transferred data on the public switched telephone network 10 through telephone wire; By public switched telephone network 10, those data are sent on the described FSK access server 26, carry out the FSK decoding by 26 pairs of described view data that send through public switched telephone network 10 of FSK access server, and decoded view data passed to above-mentioned image reception server 27, described image reception server 27 is further handled these view data again, by Internet gateway 29 transmitted image data to Internet network 30, described image reception server 27 can also be done other processing, for example above-mentioned image information is sent on user's the mobile phone by a SMSC/MMSC (SMS service center/multimedia short message service centre) 28, this image information can be exactly a MMS, or the network address of this image of storage etc.
As shown in Figure 3, it is the structure diagram of network digital camera another embodiment of system of the present invention, this network digital camera end 100 comprises that is used for a part that is connected with Internet network 30 by public switched telephone network 10, this part comprises a video transmission protocol processing unit 24 that links to each other with image Compression unit 22 in the digital camera, and a FSK modulator-demodulator 23 that links to each other with described video transmission protocol processing unit 24, and described FSK modulator-demodulator 23 links to each other with public switched telephone network 10 by telephone wire.In addition, described network digital camera end 100 can further include the signal that links to each other with above-mentioned FSK modulator-demodulator 23 and receives detecting unit 20, and described signal receives detecting unit 20 and also links to each other with camera shooting control circuit 31 in the described network digital camera.
The user can send the shooting control command to described network digital camera end by Internet network 30, above-mentioned control command is undertaken being sent to public switched telephone network 10 behind the FSK coding by the FSK access server 26 of Internet incoming end 200, and the user also can be directly sends control command to described network digital camera by public switched telephone network 10; Earlier carried out the FSK decoding processing through the shooting control signal that public switched telephone network 10 sends by the FSK modulator-demodulator 23 of network digital camera end 100, described then signal receives 20 pairs of these signals of detecting unit and carries out detection and Identification, sends dependent instruction comes the control chart picture to the camera shooting control circuit 31 in the digital camera shooting operation then.
Network digital camera system and method for the present invention, be not restricted to listed utilization in specification and the execution mode, it can be applied to various suitable the present invention's field fully, for those skilled in the art, can easily realize additional advantage and make amendment, therefore under the situation of the spirit and scope of the universal that does not deviate from claim and equivalency range and limited, the examples shown that the present invention is not limited to specific details, representational equipment and illustrates here and describe.
Claims (4)
1, a kind of network digital camera system, comprise one or more network digital camera ends that connect public switched telephone network, public switched telephone network, the Internet incoming end that is connected with public switched telephone network, wherein said network digital camera end comprises digital camera part and Communication Control part, described Communication Control part is carried out communication by public switched telephone network and the Internet, it is characterized in that, described Communication Control part is by a video transmission protocol processing unit that links to each other with image Compression unit in the digital camera, and FSK (frequency shift keying) modulator-demodulator that links to each other with described video transmission protocol processing unit constitutes, the view data that the agreement by appointment of being used for described video transmission protocol processing unit transmits needs is carried out subpackage and is handled, described FSK modulator-demodulator links to each other with public switched telephone network by telephone wire, be used for the data that described video transmission protocol processing unit carries out after subpackage is handled are carried out encoding process, and the fsk signal that generates is sent on the public switched telephone network through telephone wire; Described Internet incoming end is made of with the image access server that links to each other with described FSK access server a FSK access server that is connected with public switched telephone network, wherein the FSK access server carries out the FSK decoding to the described view data that sends through public switched telephone network, and decoded view data passed to described image access server, described image access server is sent to the Internet network with described decoded view data.
2, network digital camera according to claim 1 system, it is characterized in that, described network digital camera end comprises that further the signal that links to each other with described FSK modulator-demodulator receives detecting unit, and described signal receives detecting unit and also links to each other with camera shooting control circuit in the described network digital camera.
3, network digital camera according to claim 1 and 2 system, it is characterized in that FSK modulator-demodulator in the described network digital camera end and the also available DTMF modulator-demodulator of the FSK access server in the Internet incoming end and DTMF access server are realized.
4, a kind of network digital camera according to claim 1 system comprises the following steps: by the method that public switched telephone network is connected with the internet
The first, in network digital camera, will need the data that transmit by appointment agreement view data that needs are transmitted carry out subpackage and handle and the FSK encoding process, and the fsk signal of generation is sent to public switched telephone network through telephone wire;
The second, by public switched telephone network data are sent to the Internet incoming end;
The 3rd, at the Internet incoming end the described data that send through public switched telephone network are carried out the FSK decoding, and decoded data are further passed to the Internet network after the processing by the image reception server.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031242138A CN1310490C (en) | 2003-05-02 | 2003-05-02 | A network digital camera system and method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031242138A CN1310490C (en) | 2003-05-02 | 2003-05-02 | A network digital camera system and method thereof |
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| Publication Number | Publication Date |
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| CN1525727A CN1525727A (en) | 2004-09-01 |
| CN1310490C true CN1310490C (en) | 2007-04-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB031242138A Expired - Fee Related CN1310490C (en) | 2003-05-02 | 2003-05-02 | A network digital camera system and method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2173675A (en) * | 1985-03-22 | 1986-10-15 | Steven Henry Lerman | Communication system |
| GB2360898A (en) * | 2000-02-16 | 2001-10-03 | Stephen Albert Wilson | Remote surveillance |
| WO2002095702A1 (en) * | 2001-05-21 | 2002-11-28 | Intamac Systems Limited | Security system |
| CN1409918A (en) * | 1999-12-17 | 2003-04-09 | 高通股份有限公司 | Methods and apparatus for image manipulation |
-
2003
- 2003-05-02 CN CNB031242138A patent/CN1310490C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2173675A (en) * | 1985-03-22 | 1986-10-15 | Steven Henry Lerman | Communication system |
| CN1409918A (en) * | 1999-12-17 | 2003-04-09 | 高通股份有限公司 | Methods and apparatus for image manipulation |
| GB2360898A (en) * | 2000-02-16 | 2001-10-03 | Stephen Albert Wilson | Remote surveillance |
| WO2002095702A1 (en) * | 2001-05-21 | 2002-11-28 | Intamac Systems Limited | Security system |
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| Publication number | Publication date |
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| CN1525727A (en) | 2004-09-01 |
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Granted publication date: 20070411 Termination date: 20120502 |