TW201216148A - Remote management system and the method thereof - Google Patents

Abstract

A remote management system and the method thereof are disclosed. The remote management system includes a video capture module, a process/comparison module, a video encoding module, and a transmission module. The video capture module transforms the video signals outputted from controlled computers into a serious of images at a sampling frequency. The process/comparison module further divides the images into comparison blocks and compares two consecutive frames to find out their differences, so as to pick out the pixel value-changed blocks from the comparison blocks. The comparison blocks are further grouped into a plurality of comparison block sets. Each of the comparison block sets corresponds to a display block of a web page. The video encoding module transforms the pixel values of all of the comparison blocks in the comparison block set which the value-changed block belongs to into encoded data. The transmission module transmits the encoded data to a web browsing device in response to the request of a web browser, so that the web browser utilize the encoded data to update the display block so as to display videos which corresponding to the video signals outputted from the controlled computers.

Description

201216148 VI. Description of the Invention: [Technical Field] The present invention relates to a remote management system and method thereof; in particular, the remote management system and method thereof of the present invention do not require additional installation of a client computer The plug-in private or the lung type can directly use the webpage to display the dynamic image output by the controlled computer. [Prior Art]

KVM switch (Keyboard-Video-Mouse Switch; KVM

Switch) is connected between the central control unit of the client and a plurality of controlled computers, so that the user can control multiple controlled computers through the group keyboard, screen and mouse. The so-called network type KVM switch (〇ver_Ip κγΜ) is a multi-computer switcher with a network interface that connects a client computer to one or more controlled computers via a network. In order to enable the user of the client computer to operate the scale KVM switch and to track the controlled computer, a management interface must be provided on the fairy side for use by the side computer. In the prior art, the management interface includes a special application and a web browser, wherein the web browser can be a general web browser that is already installed on the client computer, but the application must additionally Installed by the manufacturer of the networked KVM switch. When the Lai page is used as the management interface, the relationship between the network type KVM switch and the client computer is equivalent to the relationship between the web player and the web server. At this time, the user can benefit from the computer. The webpage of Liu 201216148 comes to the multi-electric ribs for II. Today's network=household switching II product allows users to manage the remote control's function by controlling the remote control. Because there are some, the weekly page of the browser itself does not display the dynamic-f shadow f' output by the controlled computer. Therefore, the image output by the controlled computer must be displayed by a special application installed on the user's computer. . If you want to display the dynamic image output by the controlled computer with the web browser, the web browser must be additionally equipped with a plug-in program (plUg_ln, such as Ad〇be Flash (4) or an application called by the web page. Due to the fact that today's web browsers (4) are comfortable, the functions supported by each product are very different. Therefore, in order to ensure that the webpage can be displayed normally in the web browser of the type, it must be According to the W3C recommendation & (W3C reeGmmendatiGn) to create a web page. Axis-related HTML 5 胄 鲜 域 格式 ( ( 例如 例如 例如 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ! ! ! None • Support these specific formats. Moreover, the image format and the control of the keyboard and mouse are not allowed, so in order to display the motion picture in the web page browser, it is necessary to add the extra plug-in program or The web beer is called an additional application. The design of the web-based multi-computer switcher is different because of the design of the web browser and the underlying operating system platform. To be full; I don’t want to use the web browser and the operating system to develop plug-ins or applications. The manpower and material resources of the multi-computer switcher The manufacturer is not a small burden. 201216148 [Invention] ▲ One of the purposes of this month is to provide a remote management system and its method, compared with the prior art, under the premise of the plug-in, Realizing the dynamic shadow function of all the webpages of the webpages on the different operating systems S. Another object of the present invention is to provide a remote management system and method thereof, which has the function of partially updating webpages in the prior art. The effect of the provincial network bandwidth and the burden on the webpage of the webpage can be achieved. ▲ The remote management system of the present invention comprises: a video capture module, a processing/comparison module, an image coding lion and a facial mask group. The image silk module captures an analog or digital motion picture (such as a VGA or DVI signal) number of the controlled computer according to a certain sampling frequency to convert the analog video signal. - A series of static images. The processing module compares the static image into comparison blocks and compares the difference between the two static images to find out all the pixel value changes from the comparison block. The change block can be further divided into a plurality of comparison block groups. The web page displayed in the browser is also divided into a plurality of display blocks, and each comparison block group is correspondingly to a display block in the two-page display area. The image coding module further converts the pixel values of all the comparison blocks in the block group of the change block to the coded data through the coding method, but terminates the code. The two-code method is not the encoding method of the MPEG_G2_G4/AVI bit motion picture. The sending module transmits the card-riding data to the web-weaving device in response to the side-page job R request, so that the web page job can be encoded in the data field The 201216148 block, in turn, displays a motion picture corresponding to the motion picture signal output by the controlled computer. The remote management method of the present invention comprises: converting a dynamic image signal output by the controlled computer into a series of static images, and then dividing each static image into a plurality of comparison blocks, and comparing the two static images before and after Difference, to find all the changed blocks with pixel value changes from the comparison blocks, where comparison

The block is further divided into a plurality of comparison block groups, and each comparison block group corresponds to one display block in the web page display area of the web browser. If the change block exists, the pixel values of all the comparison blocks in the comparison block group to which the change block belongs are converted into encoded data by an encoding method, and then the encoded data is transmitted through the network according to the request of the web page browser. The road is transmitted to the web browsing device, so that the web browser can update the display block according to the encoded data, thereby displaying the dynamic image corresponding to the dynamic image signal output by the controlled computer. The invention transmits the dynamic image outputted by the controlled computer to the network browsing device in the form of encoded data, so that the webpage browser of the webpage/device can display the image output by the controlled computer according to the image. All kinds of dynamics on the different operating system platforms are displayed without the need to add additional plug-ins or call additional programs. The dynamic images output by the controlled computer are displayed. [Embodiment] A present invention provides a kind of distal tube system. In the embodiment of the present invention, the remote government system of the present invention is a network type multi-electricity embodiment, and the remote management system of the present invention is replaced by other computers and other computers. Or its remote (4) system or device. » 1A is a block diagram of an embodiment of the remote management system of the present invention. As shown in FIG. 1A, the remote management system 1 is connected to one or several controlled computers 2' via its plurality of ports, and interacts with the view 5 in the web page viewing device 4 via the network 3 to make the web view The device 4 can communicate with the remote s system 1 via the network 3 and thereby control the controlled computer 2. Web Page Layout = The user who is ready = can operate the remote management system 1 by the web page displayed on the web page 5, for example, to set or switch and control the connection between the controlled computer 2. In this embodiment, the network 3 is an Internet (Internet) 'webpage and device 4 is a personal computer; fine is implemented in other implementations, and the network 3 can be an Ethernet (toe) or a token ring network. (t〇ken nng) and other types of computer networks, the web service device 4 can be any handheld computer, personal digital assistant (PDA) or smart phone, etc. Mobile Electronics 1 0 1 fn 5 Internet Explorer > Mozilla Firefox ^ 2

Web browsers for different types of Go, Chrome, 0pera, and Safari or for different platforms. 4 As shown in FIG. 5, the remote management system J includes an image capturing module 10, a processing/comparing module 20, an image encoding module 30, and a transmitting module 40. The image capturing module 1 撷 extracts the analog video signal outputted by the controlled computer 2 at a sampling frequency to convert the analog moving image signal into a series of (continuous) single digital still images, the static image The image can also be called an image frame, for example, 30 撷 per second. The image capturing module is preferably a body circuit including an analog-to-digital conversion function. In 201216148, the embodiment of the towel is controlled by 2 _ state image bribes by means of the computer 2 is not on the card VGA (VideG Graphics An, ay, Wei-shaped array) 轮 (port) round to the far end The management system is; however, in other embodiments, it may be output by other interfaces such as a network. In addition, the sampling frequency is low, depending on the bandwidth of the network, hardware and hardware computing capabilities, and other requirements for display quality or other requirements. The remote system 1 further includes a routing module 50 for transmitting control signals (such as keyboard signals or cursor control Φ) from the web sigh 4 Control « 2. The path scheduling module 5 also switches the selected controlled computer 2 to the image capturing module 10. The routing module 5 can be a processor, a multiplexer, a matrix switcher (four), a tear-off field programmable logic gate array (FPGA), a bus, or any suitable combination thereof. The processing/comparison module 20 further divides the still image into a plurality of smaller comparison blocks' and compares the difference between the two static images in the pixel values, and • finds the changed region from the comparison block. Block (hereinafter referred to as the change block). The comparison block can be further divided into the block group. The web page displayed by the webpage material is also divided into multiple display blocks, and each comparison block group corresponds to the webpage display. a display block in the area. In other words, the web page display area of the web server 5 is divided into a plurality of display blocks 'each display block corresponds to a comparison block group', that is, the size of the H block is displayed. Or equal to the size of the comparison block. The 1&B diagram is a schematic diagram of the embodiment of the processing/峨 module of the 1A riding remote management button to divide the still image into blocks. As shown in FIG. 1B In the present example, each static image is divided into 10 by 10 size The block Bc is found in comparison with 201216148, and the change block (hatched portion) is found therefrom. However, in other embodiments, the visual block is divided into different sizes of comparative block processing/comparison modules 2 such as 32 by 32. The hardware is implemented by using a hardware circuit such as an integrated circuit chip. The image editing module 30 further converts the pixel values of all the comparison blocks in the comparison block group to which the change block belongs to For the encoded data ^5, the conversion of the pixel value is in units of display blocks, so as long as the taste block corresponding to the block block has a taste block is a change block, then the display block is All the corresponding blocks are encoded. As shown in Figure 1B, when the size of the display block is 32 by 32, the comparison block

When the size of Bc is μ by 16, the four adjacent comparison blocks Be belonging to the same comparison block group (i.e., corresponding to the same display block) are encoded together. The coded number also includes information such as the encoded pixel value and the coordinate value of the corresponding display block. In the preferred embodiment, the conversion of the pixel value is encoded according to the encoded square of the jpEG format. However, in other real-purpose wipes, other types of encoding/compression formats supported by TOC " For example, GIF, PNG = BMP, etc. The value hides, is, in the (four) code data transmission to the web page Liu Xie » also prepared 4 face towel 'not every piece of Wei Wei is required to accompany the county data letter head (ie header 'for data decoding use), can The use of multiple coder data sharing the header is used to save network bandwidth. In a preferred embodiment, the packet of the first pen-encoded data may include the data header, and after the second: the packet of the encoded data does not include the data header, but the second pen and the 々*, The 'flat code data is still decoded using the data 201216148 header used in the first encoded data. Weng is, data _, preparation 4 峨 fine whip 妓 == total code data, (four) and the second post of the coded data

In the preferred embodiment, as shown in FIG. 1c, when the comparison block & corresponding to several adjacent comparison block groups BS1_S2 has a change (slash portion) and f is to be mismatched, the image is displayed. The editing group can selectively combine all the comparison regions corresponding to the plurality of adjacent partial block groups Bs to increase the face ratio, (4) save the bandwidth required for transmission, and improve display efficiency. For example, the comparison block group BS丨 and BS2 are adjacent, and the comparison block group BSi has 4 change blocks and the comparison block group BS2 has 2 change regions= bundle, and at this time, the 6 change blocks or all of the blocks can be changed. The 8 blocks are coded instead of being slightly encoded separately for the comparison block group. At this time, the related information of the several adjacent display blocks must be recorded, including the coordinates, the width and the height, so that the webpage can be correctly displayed on the webpage according to the neighboring display blocks. position. Moreover, in a preferred embodiment, in order to improve the compression performance, the image encoding module 30 can be implemented by using a digital signal processor (digital signal plOeess called DSP) with an image compression function, for example, for example, The AST1000 or AST2000 transmission module 40 provided by ASpeed can transmit the encoded data generated by the image coding module 30 to the web browsing device 4 via the network 3 according to the request of the web browser 5, so that the web browser 5 can be According to the dynamic image number corresponding to the dynamic image number of the controlled computer 2 (the dynamic image is equivalent to the image on the screen of the controlled computer 201216148 2). The communication group (10) preferably includes a web page word server 4]. The web server 41 preferably transmits a common header for decoding the encoded data to the web browser 5 in response to a request from the web browser 5. The network (four) browser 5 in the network browsing device 4 can obtain the coded data of the common data header and all the display blocks from the web page buffer w of the transmission module 40 via the network 3, and according to the shared data header A block corresponding to the encoded data to instantly update the web page. After obtaining the co-news header, 'unless the size of the subsequent display block (for example, the comparison block corresponding to the neighboring block) is merged or the coded m code is changed, no The thief obtains the data_, so the transcoded data can share a common data header. In addition, in a preferred embodiment, the web server 41 can receive an event from an input device such as a keyboard or a mouse of the web page browsing device 4 (for example, executed by the web page view H 5; avaSeript The program canister is transferred to the network uniform 41 via the network 3 and processed to control the controlled computer 2 (for example, moving the mouse cursor in the screen of the controlled computer). The webpage servo β 41 preferably transmits the encoded data of the changed block in response to the request of the web browser $ when the changed block exists, so that the web browser 5 can update the webpage display area accordingly, thereby displaying corresponding to the The sugar image of the dynamic image signal outputted by the computer 2 is controlled, and when the variable block does not exist, the request of the web browser 5 is not responded to save the network. Moreover, in the preferred embodiment, when a plurality of adjacent display blocks are combined and encoded, the transmitting module 4 can transmit the related information of the aforementioned pictorial block according to the request of the web page 5 To the web browsing device 4, which includes coordinates, length and width, etc., 12 201216148 enables the web browser to update the corresponding display block in the webpage display area according to the related information and the encoded data. The web server may be a separate device (i.e., the web server 6 in this embodiment) in addition to being part of the remote management system (i.e., the web server 41 in this embodiment). The web server 6 and the remote management system 1 and the web browsing device 4 are independent devices connected to the secret 3, and the web browsing device 4 can communicate with the web server 6 via the network 3, and the remote management is performed. System 1 operates. At this time, the web server 6 is equivalent to the control function of the network type multi-computer switching H Wei towel, and in addition to providing the function of the (4) ship to manage the device to which the remote management system 1 belongs, for example, a network can also be provided. Other functions such as the full female mechanism. The communication protocol between the web server or the web server 6 and the web browser 5 is an HTTP protocol. In the - better implementation of the wealth, the network view ^ 5 towel

A plurality of display blocks, each of which corresponds to a Hlm (HyperText Marku L Λ + , core and private language) image tag Φ 〇 magetag in the web page. The size of the display block can be switched in the network_viewer$. At this time, in order to make the webpage "users of the device 4 can benefit from the keyboard or the mouse, etc." or in all the image tags - that is, the net plus a transparent saki, the butterfly H is not on the processing program. . Compared to the prior art, the present invention does not require an additional external chest m-field system to enable the client computer, cymbal or heart program to be used on different operating systems 201216148 platform. The dynamic images output by the controlled computer are displayed in all kinds of web browsers. Figure 2 is a flow diagram of one embodiment of a method of using the remote management system shown in Figure ia. The remote management system can be connected to one or more controlled computers and can interact with a web browser of the web browsing device via the network, so that the web browsing device can communicate with the remote management system via the network and thereby control Charged computer. As shown in Fig. 2, step u〇 converts the sad image signal outputted by the controlled computer into a series of still images. Step 2) Divide the still image into a view: a comparison block, the difference between the pixel values of the front and back ^ new images, to find all the changed blocks from the comparison block, where the comparison block And for a plurality of comparison block groups, each comparison block group corresponds to a display block in the web page display area of the 'week page/viewer's webpage, and the webpage display of the web page browser is divided into multiple Display blocks, each display block corresponds to a comparison block group, and the size of the block is given or equal to the size of the comparison block. In this embodiment, each static image is further divided into a plurality of 16 by 16 size comparison blocks (as shown in the mth figure), and the changed blocks are found therefrom (for example, the slanted line portion of the 帛1B figure) Show). In other embodiments, however, the visual requirements are divided into different sized comparison blocks, such as 32 by 32. Step 130: If the change block exists, convert the pixels of all the comparison blocks in the comparison block group to which the change block belongs to the coded data. In other words, the conversion of the pixel value is in units of blocks, so that at least one of the comparison blocks corresponding to the display block is a variable dump block, and all the comparison blocks corresponding to the block display block are performed together. coding. For example, when the size of the display block is 32 by 32, and the size of the comparison block Bc is 16 by 16, then four phases belonging to the same comparison block group BS (ie, corresponding to the same display block) of 201216148 will belong. The neighboring comparison block Bc (shown in Figure 1B) is encoded together. The encoded data includes information such as the encoded pixel value and the coordinate value of the corresponding display block. In the preferred embodiment, pixel values are encoded/compressed in JPEG format; however, in other embodiments, other encoding/compression formats supported by the W3C Recommendations, such as GIF, PNG or BMP, may be employed. The encoded data preferably does not include a data header for decoding the encoded data, and the encoded data shares the data header to save the bandwidth required for transmission. In addition, in a preferred embodiment, when the comparison block Bc corresponding to a plurality of adjacent comparison block groups BS changes (as shown by the oblique line in the ic diagram) and needs to be converted into a pixel value, Optionally, all the comparison blocks Bc corresponding to the plurality of adjacent comparison block groups BS are combined and encoded to increase the compression ratio to achieve the bandwidth required for the transmission, and improve the display efficiency. At this time, information about the plurality of adjacent display blocks must be recorded, including information such as coordinates, width, and scent, so that the web browser can correctly display the plurality of adjacent display blocks in the corresponding positions. . Step 140, according to the request of the webpage, transmits the encoded data to the webpage device through the network, so that the webpage H can update the explicit block according to the encoded data to enter the dynamic image signal corresponding to the output of the controlled computer. Dynamic image. In a preferred embodiment, the shared data header that is finer than the decoded data can be transmitted to the web page viewer in response to a request from the web browser to enable the web page to use the shared data header and the encoded data. Instantly update the network secrets corresponding to the block. After obtaining the shared data header, 'unless the size of the subsequent display block (for example, the adjacent display block 15 201216148 corresponds to the block block merge code) or the item code parameter has changed, the web page weaving does not need to be retrieved. The data header, so the shared header is shared by the encoded data.

In addition, in the preferred embodiment, an event, such as a keyboard or a mouse input device of the webpage, can be received, for example, captured by a JavaScript program executed in the web browser, and transmitted via the network. Transferred to the web feed device; and processed to control the controlled computer (eg, move the mouse cursor in the face of the controlled power). In addition, in the preferred embodiment, the change can be made. The block has the coded data of the change block sent by the agent at the request of the agent, so that the network_view|| can update the webpage display area to display the dynamic image corresponding to the dynamic image signal output by the controlled computer. ^ When the change block does not exist, it does not respond to the request of the webpage to save: the road bandwidth. Further, in the preferred embodiment, when several display blocks of the _ are combined, the code can be The request of the web browser transmits the _ information of the adjacent display block to the webpage difficult device, and the towel includes a message such as coordinates, length and width, so that the web browser can update the webpage display according to the video and the encoded data. Corresponding display in the area The block diagram is a flow chart of an embodiment of displaying a motion image in a web browser in conjunction with the method of using the remote management system shown in FIG. 2. (4) FIG. 3 shows that step 210 causes the web page device to be remote The end management system obtains the webpage and executes it in the webpage_step. Step 22G causes the JavaScript programming language executed in the webpage browser to send a Ηττρ request to the remote management system to request the remote management system to send the change zone_encoded data. And related information. In the preferred embodiment, the HTTp request in step 22 is implemented using the XMLHttpRequest object in the ajax 16 201216148 technology, and the related information of the changed block may include the coordinate value and height of a set of changed blocks. Values and width values, etc. However, in other embodiments, the HTTP request in step 220 can be implemented in other ways, for example, to be compatible with older versions of the Internet ExPlorer web browser, an ActiveXObject object can be used. It can also be implemented by using an IFrame component, which is not limited herein. The webpage display of the web browser is divided into multiple display areas. Each display block corresponds to a comparison block group, that is, the size of the display block is greater than or equal to the size of the comparison block. The size of the display block can be switched during execution of the web browser. In a preferred embodiment, the size of the display block may be specified in the HTTP request in step 220. Step 230 causes the JavaScript programming language to update the display in the web browser based on the encoded data received from the remote management device and related information. In the present embodiment, the following callback function (full sand (four) fine) is used.

To process the encoded data received from the remote management device and its related information: function stateChangedQ { var opt = 〇bjHttp.responseText.substring(0, 2); var dat - 〇bjHttp.responseText.substring(2); if ( Opt == ”01”) // dat is the shared data header { headStr = dat; // store dat } else if (opt == ”02”)// dat is the merge coded comparison block 17 201216148 dispBlocks(dat , true) // show dat else if (opt == ”03'')// dat is the general encoded data { dispBlocks(dat,false); // show dat } // retrieve the encoded data of the changed block and Related information checkBlockChange("update", "&blockchange=l"); The function that displays the changed block (dispBlocks) has the following contents: function dispBlocks(str, bMerged) { vararr = str.split(";"); var i = 0; for (; i <arr.length; i++) { 8), var obj = img Arr [parselnt(arr [i]. substring(4, 16)/16][parselnt (arr[i].substring(0,4), 16)/16]; if (obj) { if (bMerged) // merge coded comparison block obj.src = arr[i].substring(8); 18 2012161 48 else// General encoded data if (headStr) //Add shared data header obj.src = headStr + arr[i].substring(8); } } } }

Repeating steps 220 and 230 allows the web browser to display a motion picture corresponding to the motion picture signal output by the controlled computer. In this embodiment, the following functions are used to create the display block: function createImgBlocks() { var bd = document.getElementByldC'mybody"); var i = 0; varj = 0;

Var16; / / display block width varh = 16; / / display block height var ixJ; var ixl; for (; i <1200; i + = h) { ixl = i / h; imgArr [ixI] = new Array. 19 201216148 j = 〇; for (;j <1600;j +=w) { //Generate the display block var obj =document.createElement("img"); //Locate the display block. obj. style .position = "absolute"; obj. style.top = i + "px"; obj.style.left: j + ”px”; //Save the display block imgArr[ixI][j/w] = obj ; bd.appendChild(obj);

In the present embodiment, the display block is a 16 by 16 size block; however, in other embodiments, the display block is divided into different sizes such as 32 by 32, depending on the requirements. In the preferred embodiment, the JavaScript program can be used to convert the device to the remote device (10), event, and send to the remote device = block ==! The page display is divided into several display blocks, each: The display corresponds to an html image in the weekly page. Users of this page can use the keyboard or mouse to be processed by the mouse event, or the keyboard on the =_ or ~ like the pain ~ ~ that is, the entire page in the 20 201216148 display area Jl plus - transparent The component, and the relevant or mouse event handler for the meta dump. ^ Compared with the prior art, the present invention can display the dynamic image outputted by the controlled computer in the web browser of the type of the platform without the need to additionally install the plug-in program. In addition to the purpose, the present invention also divides the display blocks of still images and browsers into smaller blocks' and uses AJAX technology to locally update the parts of the webpage that need to be updated (only updates are changed) The display block) greatly reduces the amount of data exchanged between the webpage server and the web browser, thereby saving network bandwidth and reducing the burden on the webpage. In addition, since all coded data of the same size share a data header for decoding, it is avoided to repeatedly transmit the same data header, thereby greatly saving data amount and bandwidth. The present invention has been described by the above related embodiments, but the above embodiments are merely for implementing the present invention. It must be noted that the disclosed embodiments do not limit the scope of the present invention. Modifications and equal arrangements, including the spirit and scope of the application, are included in the scope of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1A is a block diagram of an embodiment of a remote management system of the present invention; FIG. 1B is a processing/comparison module of a remote management system of the 苐ία map. A schematic diagram of an embodiment of partitioning into blocks; the first ic diagram is an embodiment of the image encoding module of the remote management system shown in FIG. 1A that combines the comparison blocks corresponding to adjacent display blocks. Illustrated 201216148 FIG. 2 is a flow chart of an embodiment of a method for using the remote management system shown in FIG. 1A; and FIG. 3 is a view of the webpage used in conjunction with the remote management system shown in FIG. A flow diagram of an embodiment of a dynamic image displayed in the device. 30 image coding module 40 transmission module 41 web server 50 path arrangement module Be comparison block BS comparison block group BS! comparison block group BS2 comparison block group [main component symbol description] 1 remote management system 2 Controlled computer 3 network 4 web browsing device 5 web browser 6 web server 1 image capture module 2 〇 processing / comparison mode

Claims (1)

201216148 VII. Patent Application Range·· 1. A remote management system that can be connected to at least one controlled computer and can be connected to a web browser via a network with a web page. Generating an interaction, so that the smuggling web browsing device can communicate with the remote management system via the network and thereby control the controlled computer. The remote management system at least includes: a scene capture module, according to a sampling Frequency converts one of the image signals output by the controlled computer into a continuous plurality of still images; a processing/comparing module, dividing each of the still images into a plurality of comparison blocks, and comparing the difference between the two consecutive static images to find at least one change region from the comparison blocks Block (also known as "bi〇ck"), wherein the comparison blocks are further divided into a complex touch I comparison block group, and each of the comparison block groups corresponds to a web page display area of the "Hai, page view browser The display area of the towel, and the size of the display block is greater than or equal to the size of the comparison block; - the image coding module, at least one of all the comparison blocks in the comparison block group to which the variable direction block belongs The pixel value v-) is converted into a piece of coded data; and the _two transfer module transmits the coded data and the difference from the 4 network to the copper page device according to the request of the web server, so as to make the browser The display block can be updated according to the pen coded data, and then the image corresponding to the image signal output by the controlled computer is displayed. ^The remote management secret described in the third section of Lishen Xinwei, the webpage of Liu Zhishou is selected by a group of personal computers, personal digital assistants and smart phones. The remote management of the item i is pure, wherein if the adjacent blocks of the adjacent blocks 23 201216148 include the changed block, the image coding module will be adjacent to the Converting the comparison blocks corresponding to the display blocks into the pen-encoded data 'and generating at least the related information of the adjacent display blocks'. The transmission module is determined by the browser The related information is transmitted to the network browsing device, wherein the related information includes the coordinates, length and width of the display blocks. 4. If the remote management system described in claim 1 of the patent scope further includes one, the weekly page servo is not present, and the service provider does not The request of the web page (4) responds, and if the change block exists, the web server transmits the encoded data to the page browser in response to the request of the web page browser. 5. The remote management system of claim 4, wherein the web server transmits a shared data header to the web page viewer in response to the request of the web browser. The display block of the web browser may be updated on the pen encoded data according to the shared data header. 6. A remote management method 'listening' in the remote management system, the remote management system can be connected to at least the controlled computer, and can interact with the web server of the H job device via the network, so that The device can be used to control the computer via the network, and the method includes at least the following steps: (a) converting the image signal outputted by the computer to a continuous plurality of sheets. a static image; (b) dividing each of the still images into a plurality of comparison blocks, and comparing the difference between the two consecutive consecutive static images to find at least 24 201216148 from the comparison blocks a change block, wherein the comparison blocks are further divided into a plurality of comparison block groups, each of the comparison block groups corresponding to a display block in the webpage display area of the web browser and displaying the block The size is greater than or equal to the size of the comparison block; and if the change block exists, (C) converting at least one pixel value of all the comparison blocks in the comparison block group to which the change block belongs to Coded data; and (d) in response to The page browser requests the pen encoded data to be transmitted to the web browsing device via the network, so that the web browser can update the display block according to the pen encoded data, thereby displaying the output corresponding to the controlled computer output. Image of the image signal. 7. The method of claim 6, wherein the web browsing device is selected from the group consisting of a personal computer, a personal digital assistant, and a smart phone. 8. The method of claim 6, wherein the step (c) further comprises: if the adjacent blocks of the adjacent display blocks respectively comprise the change block in the comparison block, then the image coding mode The group converts all the 5 Hai comparison blocks corresponding to the adjacent display blocks into the pen coded data, and generates at least one related information of the adjacent display blocks. Step (d) further includes The request of the web browser transmits the related information to the web browsing device, wherein the related information includes coordinates, length and width of the display blocks. 9. The method of claim 6, wherein the step (d) comprises: (dl) not responding to the request of the web browser if the changed block does not exist; and 201216148 (d2) if The change block exists, and the coded data of the webpage is transmitted to the webpage, so that the webpage viewer can display the output of the webpage minus the output of the controlled computer according to the pencode store; $W Image. 10. The method of claim 6, wherein the step (d) is further directed to the request of the web browser to transmit the shared data header to the The device can decode the bat code:=:· according to the shared data header to update the display block of the web browser. 11. The method of claim 6, wherein the 筌 / ‘ horse data is selected from the group consisting of JPEG, GIF, PNG and BMP. 26