TWI222627B - Information recording method and system, image compression/decompression system, system control method and monitoring system including a part or all of the method - Google Patents

Abstract

The object of this invention is to provide a monitoring system which is related to image generation, compression, decompression and recording as well as system management, and which is superior over the prior art technique. In the generation of image data, data that are deemed to be of lesser importance are removed at intervals after adjusting the input command and compression rate of codes, etc. During the process of compression and decompression, a differential-coefficient inspecting circuit and a low-pass filter are used. In order to prevent loss of data as a result of change of disks, fixed type disks and removable type disks are used in combination. The system parameters and control programs can be automatically set and updated.

Description

1222627 A7 V. Description of the invention ([Detailed description of the invention] [Field of invention]] The present invention is «Yu Zi-Fu and New York, Ying Jian contraction / Gu shrink system," control method and the method-part or All surveillance systems. That is, 'this fortune first has a method and system for shooting information and money, especially about continuous, riding the ground, and Hachimanji's post New Zealand number. For example, the present invention relates to the When the capacity data is received at a fixed transmission speed, the data is continuously recorded in the removable memory without interrupting the transmission of its data. This record is especially suitable for the green shirt system In a surveillance system that records the digital images transmitted by the continuous surveillance-fixed location light video camera. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. The present invention also compresses and decompresses images for high-speed transmission of data. Compression and compression are the methods of the present invention related to the compression and decompression of the EG compression / decompression method. The photographs taken by a high-resolution camera, moving days, newspaper type, and television broadcast The information displayed on a contrasting image or a sharply changing image of the test pattern used is recorded on an external recording device or network or dedicated online through an optical magnetic (M0) disc, etc., and transmitted to other remote locations The system is particularly suitable in the case of compression / decompression. Therefore, the image decompression method of the present invention can also be applied to the above-mentioned monitoring system. Furthermore, the present invention also relates to a system control method, in particular, to the above-mentioned monitoring system. Method for automatically setting and updating system parameters and control programs. [Technical background of the invention]

Standard General Chinese National Standard (CNS) A4 specification (210X297 mm)

The warning signals or image data transmitted by the security video camera (surveillance camera) installed in banks, unmanned stores, department stores, etc. will be used to receive the signals from the devices installed in the remote security center. This recorded surveillance system is widely used. It is common practice to use the time-lapse video recorder VTR to compare and record the comparison information output from the surveillance camera. However, the recent surveillance system replaces the time-lapse Laplace tape recorder VTR and tends to A digital recording / reproducing device for a surveillance camera that digitally records the digital image of the body image originally used is used instead. Compared with the conventional time Laplac tape recorder VTR, the surveillance camera digital recording / reproducing device has the advantage of saving and editing high-quality images without deterioration over time. Digital image data is transmitted at a high speed, and a typical example of the known technology is to use a JPEG compression / decompression algorithm. JPEG compression / decompression algorithm based on sequential dcT (Printed Cosine Transformer printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Discrete Economy: Discrete Cosine Transformer), which converts (compresses) still image data according to ISO / IEC10918-1 (JPEG standard) If the amount is smaller, the algorithm that restores (decompresses or stretches) the original image to the original image can generally transmit a large-capacity image at high speed. Sequential DCT calculation refers to the data that is considered to be very similar to one point of the image data and other points that are very close to the point as the same data. The scalar quantity that represents a point of the image is subjected to Fourier transform to transform it into the frequency axis power spectrum If so, the power spectrum above a certain frequency can be regarded as almost zero. Cutting the data by treating it as zero is equivalent to compressing. Therefore, when the compressed data calculated by sequential DCT is decompressed, the original image will not be reproduced at all and the Chinese paper standard (CNS) A4 specification (210X297 mm) applies to this paper size. 1222627 A7 --- _ B7 5 2. Description of the invention (3) Loss. In the surveillance system, for example, there is a request for recording all information transmitted from the surveillance camera 24 hours a day, 365 days a day. In recent years, removable memory systems represented by magneto-optical disks (M0) have been widely used by their portability and large capacity (such as 640MB) as memory carriers for surveillance systems. The surveillance system of Sri Lanka and others should theoretically be able to record an unlimited recording capacity by changing milk disks. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. However, when the text is changed to a disk, no matter how fast the exchange is performed by any operator, the continuous recording during the exchange time will also be interrupted. Therefore, using only one M0 disk monitoring system will make it impossible to record certain important information such as the suspect. Therefore, in the conventional monitoring system, in order to prevent problems such as the potential failure to record important information in a short period of time, usually two M0 drivers and switch circuits are provided. The switch circuit is connected to the input image information of the first 1M0 drive and recorded on the rib disk. Before the recording capacity of the 1M0 drive's rib disk is about to run out, start the 2M0 drive and input the image. The data is switched to the 2M0 drive and the image data recorded on the 2M0 drive is recorded. In addition, during the time when the 2m drive is recording image data, the M0 disk of the 1M0 drive is exchanged with new data, and these processes are repeated thereafter. By doing so, the conventional monitoring system can prevent the interruption of continuous recording by using a M0 driver. [Problems to be Solved by the Invention] However, the digital recording and reproducing device of the surveillance camera has more environmental setting items than the conventional time Laplace tape recorder VTR.

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That is, the monitoring digital recording and reproduction device includes various line parameters (that is, system operation setting items) such as image noise rate, each-intermittent recording interval, warning recording time, and camera channel switching interval. The above-mentioned operations of manually performing Setup and Update are duplicated. Especially in places such as g where there are multiple numbers of surveillance cameras with digital recording lines, it is not efficient for all the lines to repeat the same operation with the same operation, and it also happens to be printed by the employee's consumer cooperative of the Intellectual Property Bureau of the Ministry of Economy. The system setting is incorrect. The same system can also be compared with the control program recorded by the management system. Also, in the monitoring system that requires removable memory and requires continuous recording, as described above, although two removable memory drives can be considered, But generally speaking, removable memory drives are expensive, and setting a removable memory drive will increase the cost of the surveillance system. Furthermore, especially if two removable memory drives are provided, it is extremely inconvenient if a wide installation space cannot be ensured. In addition, if the operator neglects to exchange the M0 disk, it will cause the situation that certain important information such as the suspect cannot be recorded. That is, before the recording capacity of the magnetic disk of the 0th drive is about to run out, if the operator forgets to put the M0 disk of the 2M0 drive, the result will be the recording capacity of the M0 disk of the 1M0 drive. No image data was recorded within the time period until the time when the disk of the 2M0 drive was inserted. For example, if an M0 disk can record 24 hours of video data, after 24 hours after the start of the M0 disk recording, there is no recorded video data within the time before the next M0 disk is exchanged. Furthermore, with the loss of sequential DCT calculations, for the human eye 1222627 A7 B7 V. Invention Description (5) has a significant disadvantage of discomfort. That is, since the DCT calculation is similar to the Fourier transform, once a part whose differential coefficient is changed drastically (such as an image of a movable type mixed with a background picture or a sharply raised part), the subsequent decompressed and reproduced image is Contains automatic imagers that do not actually exist near the rapidly changing part. Although these automatic images are called "Mosquito noise", the deterioration point of the reproduced image is a form of loss. Since the generation of this "noise" is an inherent problem of the JPEG compression / decompression algorithm, it is considered to develop a different algorithm. However, the JPEG compression / decompression codec that performs DCT calculations is regarded as an inexpensive LSI by most companies. Therefore, changes or re-production are related to the overall cost. . Therefore, in order to prevent an increase in cost, it is highly desirable to use an LSI chip for a commercially available JPEG codec. In this way, the conventional monitoring system does not necessarily have to be very well constructed in the generation, compression, decompression, recording and system management of image data. [Means for solving problems] The purpose of printing the present invention is to provide a novel and useful information recording method and system, image compression / decompression system, and system control method for solving the above-mentioned conventional problems. And an example of a monitoring system that has some or all of the methods and summarizes them. Another object of the present invention is to provide a monitoring system capable of recording information even if the operator forgets to replace the magnetic disk. Another object of the present invention is to provide a monitoring system and method capable of recording image data even after a certain recording time has passed. This paper size applies to China National Standard (CNS) A4 specification (210 X 297 mm) _ _ 1222627 A7 V. Description of the invention. It is another object of the present invention to provide a monitoring system and method capable of reproducing an image recorded in the past even during recording. Furthermore, another object of the present invention is to provide a monitoring system and method capable of recording a monitoring image even when a recorded image is reproduced. Still another object of the present invention is to provide an information recording method and system capable of recording scene data of time V which is conventionally unrecordable, and to provide a monitoring system which will use these methods. In addition, an object of the present invention is to provide a compression / decompression system using a currently available jpEG codec codec in an original manner and capable of generating a high-quality image that suppresses noise more than conventionally known, and a system using the same. Monitor the system. In addition, another object of the present invention is to avoid sighs and updates of system parameters and control programs, repetitive manual operations and human-based errors based on the same, and to provide a highly reliable system control system method and Monitoring systems using these methods. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs To achieve the above-mentioned purpose, the continuous recording system of the present invention has a removable delta memory drive, a fixed magnetic disk device, and a connection between the aforementioned removable memory drive and the fixed The control device of the magnetic disk device, the aforementioned control device is input data to the removable memory drive and records the foregoing data in the removable memory of the removable memory drive, and the removable memory is exchanged. On the occasion, the input of the data is switched on the fixed disk device and the foregoing data is recorded on the fixed disk of the fixed disk device. After the removable memory is exchanged, the fixed magnetic disk is transmitted to the new removable memory. The foregoing information recorded on the disc is continuously recorded by such control. The μ's scale is applicable to China (·· 210χ 297 Mod cjy 1222627 A7 ---- B7 V. Description of the invention (7) In addition, the continuous recording method of the present invention has the function of inputting data into a removable memory drive and applying the Step 1 of the removable memory recording data of the removable memory drive; before the memorable capacity of the aforementioned removable memory is about to be completed, switch the input of the aforementioned data from the aforementioned removable memory drive to The fixed disk device, and the second step of recording the aforementioned data on the fixed disk of the fixed disk device; after the aforementioned removable memory is exchanged, 'switching the aforementioned data from the aforementioned fixed disk device to the aforementioned removable type Memory drive 'while recording the aforementioned data in the new removable memory being exchanged, while also ensuring that the data transferred from the aforementioned fixed disk device to the aforementioned removable memory drive will be recorded on the aforementioned fixed disk Step 3 of copying the foregoing data to the removable memory; and copying all the foregoing data recorded on the fixed disk to the removable memory to The original step 4 of ensuring the input of the aforementioned data to the aforementioned removable memory drive, and blocking the data path from the aforementioned fixed disk device to the aforementioned removable memory drive. As a result, it returns to Repeat the above step 1. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. The above steps 3 and 4 can also be performed. After the aforementioned removable memory is exchanged, the output will be maintained to the aforementioned fixed. The aforementioned data of the magnetic disk device is input, and the data path from the aforementioned fixed disk device to the aforementioned removable memory drive is ensured, and the aforementioned data recorded on the aforementioned fixed disk is copied in time series to the aforementioned Step 3 of the removable memory, and after all the data recorded on the fixed disk are copied to the removable memory, the input of the data is switched from the fixed disk device to the removable memory Driver 'while blocking from the aforementioned fixed magnetic ___- 10-_-This paper size applies Chinese National Standard (CNS) A4 specification (210X 297 mm) A7 Description of the invention B7 2 sets the data path to the aforementioned removable memory drive! The 4th step, after the "4th step, you can also return to the first step and repeat the process of the owner. Again, this The surveillance system of the invention comprises a surveillance camera, a compression device connected to the consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, a video encoder connected to the image compression / decompression device, a display device connected to the video encoder, and the aforementioned image. Continuous recording system of compression / decompression device, said continuous recording system is provided with a removable memory drive, a fixed magnetic disk device connected to the removable memory drive, connected to the aforementioned removable memory drive, and a predetermined The control device for putting on the disk, the control device records the image data to the removable memory by inputting the image data from the image compression / decompression device into the removable memory drive. The removable «hidden body of the drive, when the removable memory is exchanged, switches the input of the aforementioned image data to the aforementioned fixed data device and The image data is recorded on the fixed disk of the fixed disk device, and after the removable memory is exchanged, the image data recorded on the fixed disk is transferred to a new removable brother-like memory control. The aforementioned image data is continuously recorded. In this way, the continuous recording method and system of the present invention, and further the monitoring system using this method and system, use a removable memory drive. Also, the data is recorded by the fixed disk during the time that the removable memory is exchanged so that continuous recording is not interrupted. In addition, the continuous recording method described in item 3 of the scope of patent application of the present invention is based on the fact that the removable memory data is time series and is recorded in the address in a whole row. Therefore, in the reading of the paper size, the Zhongguanjia Standard (CNS) M specification (21G > < 297 mm) 1222627 V. Description of the invention (9) Only the addresses are sequentially read and the images are read. Read in series. In order to achieve this purpose, an exemplary digital recording method of the present invention has a step of temporarily recording the digital data stored in a buffer with an image recording interval set in the operation phase, and a temporary delay, and The step of recording the aforementioned digital data stored in the buffer and delayed by the aforementioned data on a recording medium at an image recording interval set by the aforementioned operator. According to this method, digital data is temporarily stored in the buffer at an image receiving interval set below the image recording interval set by the operator, and part or all of the digital data recorded in the recording medium recording buffer is recorded. Since the buffer delays the digital data, there is a time lag in selecting and editing the data recorded in the recording medium. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, and another exemplary digital recording method of the present invention, in the first recording mode, the operator records images below the set first image recording interval The step of storing the digital data in the buffer during the receiving interval and temporarily delaying it; the delayed digital data stored in the buffer in the aforementioned recording mode and recorded in the recording medium at the aforementioned video recording interval Steps; switching from the aforementioned 丨 recording mode to the second recording mode; and in the aforementioned second recording mode, switching from the aforementioned ^ self-recording mode to the second recording mode before the time stored in the aforementioned buffer Digital data is recorded in the aforementioned recording medium. This method also has the above-mentioned time vacancies, and the time vacancies are used here to record data on the recording medium before the mode is switched. Yet another example of the present invention is a digital recording method, which has a first image recording interval set below the first image recording interval set by the operator in the first recording mode. ^ Sheets are applicable. ^ ~~-122262 ^ Sewing Ministry Intellectual Property

Consumer cooperation 钍 Print media, and in the aforementioned second recording mode, stored in the aforementioned buffer before the switching time from the aforementioned recording mode to the aforementioned second recording mode:

[Scale A7 _ — B7 Legacy, invention description (10) The shirt image is collected with digital data, and the digital data is subjected to a certain process including compression. The first compressed data is created and stored in a buffer and temporarily stored. A step of delaying; a step of recording the first compressed data stored in the buffer in the first 丨 recording mode to the buffer at the first video recording interval by the buffer delay; from the first recording mode A step of switching to the second recording mode; a step of preparing second compressed data having a larger amount of data than the aforementioned compressed data in the aforementioned second recording mode, and storing into a buffer; and in the aforementioned second recording mode The step of recording the aforementioned second compressed data stored in the aforementioned buffer on the aforementioned media by the aforementioned buffer delay. This method also has the above-mentioned time margin. At the same time, the second recording mode is to record the second compressed data with a larger negative load than the first compressed data in the memory medium. This method is particularly effective when the importance of information increases or when switching from the first recording mode to the second recording mode. 0 The digital recording method of the same state as the example of the present invention has the ability to switch the first recording mode The control device in the second recording mode; while it can be controlled by connecting the aforementioned control device, in the aforementioned 丨 recording mode, the digital data is stored temporarily in the image receiving interval set below the first image recording room set by the operator to make it temporary Delayed buffer; and can be controlled by connecting the aforementioned control device, in the aforementioned 丨 record mode, it will be stored in the aforementioned buffer and delayed before it is delayed. The digital data is recorded to a recording device of the aforementioned storage medium. According to the Α4 specification (210X297mm) This system can temporarily store digital data at the image receiving interval of the buffer below the first image recording interval, and part or all of the digital data recorded in the recording buffer of the storage medium. Since the buffer delays the digital data, there is a time margin for selecting and editing the data recorded on the recording medium. This system is used to record the data of the temporal remnant before the mode is switched to the storage medium. 、 ≫ In addition, the digital recording system of the same state as the other examples of the present invention has a control device capable of switching between the first recording mode and the second recording mode. 丨 It can be controlled by connecting the control device. It is necessary to perform a certain process including compression. The aforementioned 丨 recording mode is to create the compressing data, and the aforementioned ②recording mode is to compress the second compressed data which is larger than the amount of data of the aforementioned 丨 compressing data; It is controlled by the aforementioned control device, and a buffer that temporarily delays the first and second compressed data stored by the human being at intervals below the first image recording interval set by the operator; and a buffer capable of being connected to the aforementioned control device At the same time of control, the "i" and "2" compressed data stored in the aforementioned buffer and delayed can be recorded to a recording device of a record carrier. This system also has the above-mentioned margin of time. At the same time, the second recording mode is the second compression of the larger amount of data recorded in the memory media than the old data. This is particularly effective when switching from the recording mode to the second recording mode at or after the time. In order to achieve the above-mentioned object, the digital recording method of the present invention has the steps of setting the first and second recording modes; for digital data, the processing including the delimitation is performed in the aforementioned section! Recording mode creators compress the data. In the second recording mode, the data volume is 1222627 A7, which is smaller than the magic compression data.

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Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs This paper switches from the 1st recording mode to the 2nd recording mode. The second compressed data may also be formed by the digitally converted *, or it may be formed at a higher compression rate than the aforementioned first recording mode. In addition, the recording mode can be switched in the order of 3rd and 4th. ”Also, the surveillance system of the present invention has a surveillance camera; the reading video data connected to the video camera 1 ^ is replaced by digital data. :,; Dou Zhi Video Decoding II, connected to the video decoder * An image compression device that can perform compression-specific processing on the aforementioned digital assets 2; connected to the aforementioned ~ like compression clothes to record the aforementioned compressed data The recording device on the record carrier and the control device connected to the aforementioned image compression device and the aforementioned recording device. 0 The aforementioned control device controls the aforementioned image compression difficulty to become the first data in the first recording module and in the second recording formula. A second compression unit having a smaller amount of data than the second compression unit 2 is created, whereby the memory device records the first compressed data to a record carrier in the first recording mode, and in the second recording mode, the memory device The aforementioned second compressed data is recorded to the record button. The second compressed data can also be formed by the digits being interpolated, or the points formed by compressing at a higher rate than the first recording mode are the same as the above digits. Remember The recording system is the same. In addition, the monitoring system can also use the digital data to fetch and receive commands or read commands from the control device. According to the digital recording method and system of the present invention and the monitoring system, the second recording mode will be丨 The second compressed data with a smaller amount of compressed data is recorded on the record carrier. Therefore, it is more extended than the case where only the first 丨 recording mode is used. ^ Ϋϋ? Τ ^ ΓΑ4 specifications (210x297 mm, please read back 5) Fill in the notes

Order 1222627 A7 B7 V. Description of the invention (14) The time from recording to recording on 5 carriers. In addition, the digital recording method of the present invention can record compressed data of digital data between record carriers, inflate digital data, or change the compression ratio. In order to achieve the above object, the image compression / decompression system of the present invention has a detection circuit that detects a maximum value of an image change rate corresponding to a unit distance in each field by dividing a field having a certain size of the first image information; A low-pass filter that performs a certain filtering process on the i-th image information in the aforementioned field with a maximum value greater than the critical value; and the aforesaid image information in the aforementioned field with the aforementioned maximum value that is smaller than the aforementioned critical value A JPEG codec that compresses the second image information formed by the aforementioned i-th image information passing through the low-pass filter by DCT calculation. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs, the surveillance system of the present invention has a surveillance camera; a video decoder connected to the surveillance system; an image compression / decompression system connected to the video decoder; and an image compression / decompression connected to the video decoder A video encoder of the system; and a monitoring system composed of a display device connected to the video encoder; the image compression / decompression system has an input filter connected to the video decoder; a jPEG codec connected to the input filter ; A JPEG filter processor connected to the aforementioned input filter, wave filter, and the aforementioned JPEG codec, the aforementioned input wave filter has a field having a certain size of the first image information and detects a rate of change of the image corresponding to a unit distance in each field A detection circuit for the maximum value; and a low-pass filter that performs a certain filtering process on the first image information in the aforementioned field having a maximum value that is greater than a certain threshold value, and the JPEG codec system just described The aforementioned image information of the aforementioned field having the aforementioned maximum value which is smaller than the aforementioned critical value With the aforementioned low-pass filtering, this paper standard applies the Chinese National Standard (CNS) A4 specification-crystal-1222627 A7 ____B7 V. Description of the invention (15) The second image information composed of the aforementioned first image information of the device, through DCT Calculate and compress, the JPEG filter processor will include the identification information of the aforementioned area with the aforementioned maximum value above the aforementioned threshold value; the difference information between the aforementioned maximum value and the aforementioned threshold value; and the filter data rotation annotation of the aforementioned threshold value information The marker generates JPEG filtering together with the compressed data output by the aforementioned JPEG codec. According to the image compression / decompression system and the monitoring system of the present invention, the detection circuit and the low-pass filter act as a drop in the field with a high image change rate, so the jpeg filter generated by the second image is decompressed. Compared with the conventional case where the JPEG filter generated by the first image is decompressed, noise can be suppressed. In addition, the present invention can originally use a commercially available JPEG encoding and decoding. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs It is best to set up a JPEG filter processor and write the filtered data to the jPEG data annotation marker. Furthermore, it is better to set a filtering data analysis circuit and a peaking filter to restore the filtering process formed by the low-pass filter, so that it can be reproduced more faithfully than the original image. The detection circuit, low-pass filter, and filter data analysis circuit and peaking filter can be implemented as a digital signal processor. In order to achieve the objective, the method for automatically setting and updating the system parameters of the monitoring system of the present invention includes whether there is a first system parameter currently used by the monitoring system, and determining whether a second system parameter ratio to be introduced into the monitoring system is introduced. The step of updating the first system parameter; and the step of automatically setting the second system parameter in the monitoring system by copying the second system parameter once it is determined that the first system parameter does not exist in the monitoring system; Paper size is applicable to China National Standard (CNS) A4 specification (21〇X π? Mm) 1222627 A7 ---------------------- 5. Description of the invention ( 16) '---- It is determined that when the first system parameter exists in the monitoring system and the second system parameter is updated than the first system parameter, the first system parameter is automatically updated to the second thread parameter. Steps; and the step of determining the existence of the first system parameter in the monitoring system, which is the same as the second system parameter, or has a life-saving maintenance, described in the β system parameter. According to this data method, pure parameters can be set and updated automatically after the set lang. The method for automatically setting and updating the control program of the monitoring system of the present invention printed by the employee's consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs has the existence of the first control program used by the monitoring system and determining whether the monitoring system will be introduced A step in which the second control program is updated than the first system parameter; and-if the first control program does not exist in the monitoring system, the second control system is automatically set to the monitoring system by copying the second control system Steps of the control program; a step of automatically updating the second control program to the second control program when the first control program is described and the second control program is updated than the first control program when it is determined that the monitoring system exists And, if it is determined that the first control program exists in the monitoring system and is the same as the second control program or has a new production date, a step of 'maintaining the first control program. According to these methods, the control program can be set and updated automatically after a certain judgment. Furthermore, the monitoring system of the present invention is a monitoring camera having a photographed subject image and outputting an electrical contrast signal; a conversion unit that converts the electrical contrast signal into a digital signal; and a monitoring device that records and edits the digital signal For the system, the aforementioned control device has the system parameters for setting the operating environment of the aforementioned surveillance system; it will control the various parts of the aforementioned surveillance system • aa 1222627 A7--------B7 V. Description of the invention (17)-~- A memory unit stored in the control program M; and a control unit that controls the automatic setting and updating of the aforementioned secret parameters and the aforementioned control granularity. According to this monitoring system, the control unit can control the system parameters and control the automatic setting and update of the shout. Other objects or other features of the present invention can be explained with reference to the drawings, and clearly described in the preferred embodiment. [Embodiment of the Invention] Hereinafter, an exemplary monitoring system 100 according to the present invention will be described with reference to the drawings. In each of the drawings, components or steps assigned the same reference numerals are regarded as the same components or steps, and repeated description is omitted. Here, Fig. J is a schematic block diagram of an exemplary monitoring system 100 according to the present invention. The monitoring system 100 has a plurality of surveillance video cameras (surveillance cameras) 10, a warning device 12, a selector 14, a video decoder 16, a video encoder 18, an input / output filter 20, jpeg codec 50, code frame buffer 58, control device 60, MO drive (removable disk drive) 80, hard disk drive (fixed disk drive) 82, and screen 84 Printed by the Bureau ’s Consumer Cooperatives 1. Video camera 10, warning device 12 and selector 14: Video camera 10 and warning device 12 are located at surveillance locations such as department stores, unmanned stores, banks and art galleries, and the warning device 12 is connected Infrared sensors, sound sensors, etc. (not shown in the figure) sensors installed on the door, etc. These sensors are configured to input a response to the switch when a suspect is detected . The surveillance camera 10 is, for example, a CCD (Charge Coupled Device) capable of converting the subject into a contrast electrical signal. The paper size applies to the Chinese National Standard (CNS) A4 (210 X 297 mm).

The embodiment of the movie machine. In this embodiment, the warning device 12 is shared with a plurality of sensors and only one is provided, but in the option, one can be installed for each sensor to form a plurality. The information of the video camera 10 and the warning device 12 is transmitted to a guard room in the same area or a security company located in a remote place through a communication line. The guardhouse or security company is provided with a selector 14, a video decoder 16, a video encoder 18, an input / output filter 20, a JPEG codec 50, a frame buffer 58, a control device 60, and a MO driver 80. And hard disk drive 82, these devices may be regarded as a digital image recording device. The control device 60 is constituted by a general-purpose personal computer, and each of the M0 drive 80 and the hard disk drive 82 is constituted as a built-in M0 drive and a hard disk drive of the personal computer. Can be constructed as a personal computer. Of course, only one of the control devices 60 may be built in. The selector 14 is a signal component necessary for recording from a camera signal component and a camera signal component of a contrast signal captured by a plurality of surveillance cameras. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 2. I / O Filter 20: I / O Filter 20 has noise from the transmission path, and has an input filter 30 and an output filter 40. The input / output filter 20 is preferably constituted by an adaptive input / output digital filter. However, the present invention may be constituted by either one of the input filter, the output filter, or a general-purpose filter of both. . Furthermore, as explained below, the input filter 30 uses the input image information to be compressed as a trusted adaptive input digital filter, and this paper size applies the Chinese National Standard (CNS) A4 specification (210X297 male-1222627 A7 B7 V. Description of the invention (19) The adaptive output digital filter which outputs the output wave? § is the output image information. 2-1 Image compression / decompression system The following describes the input / output filter 20 and jpeg with reference to FIG. 2 A more detailed connection situation of the codec 50. Here, FIG. 2 is a block diagram showing an important part of the same image compression / decompression system 11 of the exemplary embodiment of the present invention. The image compression / decompression system 110. As shown in FIG. 2, it has an input filter 30, a JPEG codec 50, a JPEG file processor 120, and an output filter 40. The JPEG file processor 120 is connected to an external memory device 130. JPEG codec The encoder 50 is connected to the code frame buffer 58. Moreover, the adaptive input digital filter 30 and the adaptive output digital filter 40 are used in actual circuits, for example, by filtering calculations. It can be realized by an integrated structure of a digital signal processor (DSP), and the jpeg file processor 120 can be implemented by using a control program stored in a second memory 74 such as a ROM of the control device 60 or a hard disk 83. Realized. Also, the external memory device 13 is the M0 drive 80 in the j-th figure. However, the present invention is not limited to this, but also includes any external memory device (DVD drive, CD drive, etc.). Ministry of Economic Affairs Printed by the Intellectual Property Bureau's Consumer Cooperative Cooperative 2-2 Adaptive Input Digital Filter 30: As shown in Figure 3, the Adaptive Input Digital Filter 30 has a differential coefficient detection circuit 31, a subtractor 34, a low-pass filter 36, and Switching switch 38. Here, the third figure is a schematic block diagram showing the structure of an example of the adaptive input digital filter 30. The adaptive input digital filter 30 generates filtering figures and image data, and filters The data is output to the JPEG file processor 120 ′ and the image data is output to the JPEG codec 50. The filtered data is as follows 1222627 A7 ---------- B7 V. Description of the invention (20) The general situation described above And finally The JPEG file ’s annotation mark. The image data will finally be generated as a compressed data row of the JPEG file. The adaptive input digital filter 30 has a field of 8 * 8 pixels (this is called a “block”) to judge individually Contains the function that the input image information changes abruptly, and only the sharp change portion passes the low-pass filter. In this embodiment, whether the image data changes drastically depends on the rate of change of the image over a unit distance. The differential coefficient is used for judgment. The differential coefficient detection circuit 32 detects a differential coefficient of the input image data. The differential coefficient detection circuit 32 is selected on the basis of the center point close to the block, and obtains (maximum value) one (minimum value) for each of the 8 horizontal data and 8 vertical data including the point. The image is usually transformed into a so-called YcrCb digital image format. Here, γ represents the luminance component of the image, and ^ and ⑶ represent the color component. In order to express the color in a quadratic form, Cr and Cb are represented by two vertical coordinate axes. Therefore, one image has three components of γ, Cr & Cb. In principle, the confirmation of the differential coefficient printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs is based on the three components separately. However, in fact, human eyes are most sensitive to luminance, so even if it is selective, only the luminance component can confirm the differential coefficient. In this case, the largest of the two values obtained is regarded as the maximum differential coefficient. In addition, the existence of data with a large differential coefficient can be obtained without detecting by this method. However, the maximum size of the field is 4 * 4 and it exists in its own size, so even if this implementation does not pay attention to this point, it will have little effect. The differential coefficient detection circuit 32 supplies the data of Di to the subtractor 34 and the data of Di to the switch circuit 38 (a control section not shown in the figure) as described later. The paper size is suitable for financial standards (CNS) A4 (210X297 mm) 1222627 A7 B7 V. Description of the invention (21) The subtractor 34 has two inputs and one output, and one of the inputs is supplied to the differential coefficient detection circuit 32. Differential coefficient Di (i is the block number) of the target block of the output input image information. The input to the other party is supplied with a preset threshold Ds. The output of the subtractor 34 is transmitted to the JPEG file processor 120 as the filtering data, and is also supplied to the low-pass filter 36. Although the low-pass filter 36 can accept input image data, its operation is controlled by a subtractor. In other words, the maximum value of the differential coefficient Di of the low-pass filter 36 becomes the DS, and the filter coefficient is changed in accordance with the output (Di-Ds) of the subtractor 34. Therefore, if (Di — Ds) is large, the filter coefficient of the low-pass filter and the wave filter 36 is changed to be large, and if it is small, the filter coefficient is changed to be small. The switching circuit 38 has a control section (not shown). The controller obtains the information of the differential coefficient detection circuit 32 and makes the block Bi (I series block number) having a differential coefficient Di larger than the threshold Ds. With the low-pass filter 36, the block Bj (j ^ i) (j-series block number) that does not match Bi does not perform the switching control like the low-pass filter 36. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. If the critical value Ds is set to be very large, there is no block Bi that passes the low-pass filter 36 in the image compression / decompression system 110. Therefore, month b This has substantially the same effect as the conventional configuration in which an adaptive input digital filter 30 does not exist. In addition, the smaller the threshold value is, the more the noise can be suppressed, but the larger the loss of the high-frequency part is, the sharper the contour of the reproduced image becomes. The image compression / decompression system 110 of this embodiment decides the most appropriate Ds for each object image by simulation in consideration of this point. 1222627 A7 __ B7_ V. Description of the invention (22) 3 — 3 JPEG codec 50 and frame buffer 58: JPEG codec 50 uses image data as a JPEG file and sends it to the control through the PCI bus 62 The device 60 will be an M0 drive 80 and / or a hard disk drive 82 described later. However, in the following description, the jpEG codec 50 transmits a JPEG file to the MO drive 80. In the case where the JPEG codec 50 supplies the output data to the hard disk drive 82, it is only necessary to change the M0 drive 80 to the hard disk drive 82. The exemplary recording method according to the present invention is a part of the operation of the monitoring system 100. The J P E G codec 5 0 uses a sequential d c T (Discrete Cosine Transformer) calculation and Huffman symbol / printed by the Intellectual Property Office of the Ministry of Economic Affairs and the Employees' Cooperative Cooperative Decoding JPEG compression / decompression algorithm. The jPEG compression / decompression algorithm is based on ISO / IEC10918-1 (JPEG standard), and is transformed into a smaller amount of data than the still image. This algorithm is used to restore the original image data (thawing or decompression). Well-known in the industry. The JpEG compression / decompression algorithm is set or used by the operator to specify the compression / decompression; control rate stored in the second memory 74 to be described later. The ㈣ codec 50 can be constituted by, for example, a ship 31 manufactured by Fuji Soft #Microscope Co., Ltd. In this way, the present invention can be used natively without changing any of its specifications even if it is any of the codecs commonly used in the industry today. The 邛 阢 codec 50 also includes a code frame buffer 58. Of the JPEG codecs sold in the market, there are also JPEG codecs that can be identified and commented. "The image compression / decompression system 11G of the present invention will be described later. ⑽ Draw out

" The main solution is private information, and the heavy file that does not have the information recorded in the annotation mark is transmitted to the JPEG codec 50. Therefore, the result is not limited to whether there is a function that recognizes the annotation mark. The codec 50b, which is sold, is used in the video compression / decompression system 11 of the present invention, that is, the codec 50. In this way, since the LSI for the JpEG codec is not changed or renewed, the cost of the image compression / decompression system 11 can be prevented from increasing. A typical JPEG codec 50 has a DCT 邛 52 and a Huffman symbol / decoding unit 54 as shown in Fig. 2 and can decompress the compressed data while compressing the video information. The DCT section 52 receives the image data of the adaptive input digital filter 30 and calculates each block, and the Huffman symbol / decoding section 54 expresses the result with as few bits as possible. The result is compressed data. The compressed data generated at this point does not include information on how low-pass filtering is performed for 36 blocks. The compressed data sequence is transmitted to the JPEG file processor 120. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. On the other hand, when the data is decompressed, the JPEG codec 50 will transmit the jpEG file of the extracted information from the JPEG file processor 120 as described later. Come and decompress this, and then transfer the result to the adaptive output digital filter 40. The code frame buffer 58 can control the display position and enlargement and reduction of each screen when the divided screen 84 displays a plurality of daylight images. In addition, the code frame buffer 58 has a stripe buffer (memory that stores image data of 8 lines each). However, those who are related to the recording method of the present invention 1 temporarily store the image data and encode it in JPEG. The part read by the decoder 50. This paper size applies Chinese National Standard (CNS) A4 specification (210X297 meals)-one 241 222 627 A7 B7 V. Description of the invention (4-4 JPEG file processor 120 and external memory device 130: JPEG file processor 12o as shown in figure Fig. 2 generally includes a logo analysis unit 122. The logo analysis unit 122 is configured to receive filter data transmitted from the adaptive input digital filter 30 when image information is compressed, and to receive a compressed data sequence from the JPEG codec 50 to generate a JPEG The function of the file. Here, FIG. 4 is a schematic block diagram of the example structure of the JPEG file processor 12o. The logo analysis unit 122 can exchange signals with the external memory device 130 and simultaneously transmit (not shown in the figure) ) Communication devices such as modems and communication circuits can transmit and receive JPEG files to and from other systems in remote locations. In addition, the mark analysis unit 122 has a comment mark that analyzes the received JPEG file when decompressing the JPEG file. Extract the information to create file data, and send the slave file with the information of the extracted annotation mark to the codec 50, and transmit the file data to the adaptive output number. Filter 40. The JPEG broadcast printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs is composed of a compressed data column symbolized by Huffman, and a mark describing the attributes of the compressed data column and the information necessary for decompression. Marker has SOI Flag, EOI flag, RSTm flag, code frame header (S0F0, S0F1) flag, scan header (SOS) flag, quantization table definition (DQT) flag, Huffman table definition (DHT) flag, Restartintervel Definition (DRI) logo, COM (COM) logo, Application (APPn) logo, image line number definition (DNL) logo, etc. Each logo is assigned its own information in accordance with ISO / IEC10918-1. Among other logos, The JPEG file processor 120 writes the annotation flag into which information the low-pass filter 36 performs filtering and to what extent.

XL This paper size applies the Chinese National Standard (CNS) A4 specification (210X 297 mm) 1222627 A7 ______B7 V. Description of the invention (25) In addition, the compression ratio in this mark is recorded in the quantum definition (DQT) mark. Therefore, in the case of using the M0 disk 81 that has been recorded in the JPEG slot for the M0 drive of other systems, the JPEG codec of the system can recognize the thawing rate from the DQT mark. . The annotation flag is written with the ID information of the annotation flag in the first 2 bits and the information of the number of bits in the annotation mark is written in the next 2 bits. The method of using the annotations is through ISO / IEC10918-1, which can be set freely by the operator, and the annotation is usually written in the product or company name. In this embodiment, the format of the filtering data added to the annotation flag is as follows. Therefore, if the product name is written in advance, it is added later. In addition, the data are in bits and each data is in the range of 0 to 255. First, the data of the critical value Ds is written at the time of opening, and second, the following 1 set of 3-bit data is repeated in each block passing the low-pass filter 36. Block address X coordinate 1 bit Block address y coordinate 1 bit Ds difference data of maximum change rate 1 bit For example, if the image has a size of 640 * 480 pixels, the employee of the Intellectual Property Bureau of the Ministry of Horizontal Economy Consumption cooperatives print 640/8 = 80, and vertical 480/8 = 60 blocks are arranged in a matrix. For these 80 * 60 = 4800 blocks, the address is the block address, with the upper left end of the image as the origin. The X coordinate increases its value as it moves to the right, and the y coordinate increases its value as it moves down. For example, (0, 0) indicates the block address of the upper left block, and (10, 12) indicates the address of the πth block from the left and the 13th block from the top. In this way, the format of the filtered data is Ds in the first bit, and in the end, the paper scale is suitable for financial use. _Home standard (^^ see grid (2lQx297 public director)-^-1222627 A7 _B7 V. Description of the invention (26 ) Please read the precautions on the back first and then set a group of 3 bits in parallel. The JPEG file processor 120 of the present invention identifies the data in the annotation target as filtered negative material or a single annotation, etc. by adding the following 2 One is to ensure the field of 2 bits after Ds. The following is the number of consecutive data announced in this field. The other is an additional checker of 1 bit to the final data. The checker adds the value of the result of each bit of data from the first to the last of the filtered data, and the lower 8 bits of the value subtracted from 0. The next 2 bits of ds announce the number of data Therefore, it is possible to recognize the total number of bits of the filtered data. Orderingly, the result of the addition from the first to the last data only with the formatting of the filtered data should be 0, and if it is 0, it becomes an incorrect single wave data type. Notes. Additional additions to filtering data In the case of annotation, the order is added to the filter and wave data so that the order is determined in this way. With this structure, the JPEG file processor 120 detects the data in the annotation mark as the assumption that the filtered data was originally added. If the addition result of the meta data is 0, it is regarded as filtered data. Further, if there is data after that, the jPEG file processor 120 recognizes these data as annotations. If it is not 0, it is interpreted as only There is no filtering data for annotation data only. This is printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. JPEG eaves processing 120 When the necessary information is written into the annotation markers, the marker including the annotation marker is completed. And display JPEG files composed of compressed data rows of image data. The jpeg file processor 120 of the present invention does not make any changes to the compressed row data, so it can maintain and know how to handle JPEG codecs (and JPEG) Decompressor) interchangeability of JPEG files. The JPEG file processor 120 is capable of storing completed JPEG files to (eg, Home Standard (CNS) A 4 specifications (210X297 mm) ^

Hard disk drive 82 in control device 60 in the case of external memory device 130 or JPEG file processor 120 as control device 60, which is made of removable memory such as a magneto-optical (MO) disk. . The JPEG file processor 120 can transfer JPEG files to other computers and other devices through communication devices such as modems (not shown). The JPEG file is compressed by the JPEG codec 50. Therefore, the original image information can be transmitted at a higher speed than in the case of the original local transfer. 2-5 adaptive output digital file 40. As shown in Fig. 5, the adaptive output digital eaves case 40 includes a wave data analysis circuit 42, an adder, a peaking filter 46, and a switching circuit 48. Here, Fig. 5 is a schematic block diagram showing an exemplary configuration of an adaptive output digital file 40. The adaptive output digital file 40 receives the filtered data from the JPEG file processor 12 and the JPEG codec 50 receives the image data composed of the decompressed compressed data sequence, and the image information is output as a result. This image information is used to reproduce subsequent images. The adaptive output digital filter 40 has the wavelet processing based on the filtered data through the peaking filter 46 for the block that passes the low-pass filter 36, and for the area that does not pass the low-pass filter and the wave is 36 A block is a function that is originally output locally. The image compression / decompression system 11 of the present embodiment is preferably provided with an adaptive output digital filter 40. However, even if the adaptive output digital filter 40 is not provided, it is better than the conventional jpeg encoding and translation The circuit structure of the encoder 50 has the effect of reducing noise. The reason is that the low-pass filter 36 has reduced noise, and the peaking filter 46 is a device for restoring the blur of the image contour caused by the low-pass filter 36. This paper size is applicable to China National Standard (CNS) A4 (210X297 mm)

However, if the blurring of image outlines is compared with noise, it will be less uncomfortable for human eyes. Therefore, the image compression / decompression system 110 without the output filter 40 is also fully invented. This effect can be understood as, for example, a problem that arises when a JPEG file generated by the image compression / decompression system 110 of the present invention is transferred to a conventional system composed of a JPEG codec and reproduced. The filter data analysis circuit 42 recognizes the difference between the differential coefficient Di and the critical value ds of the block Bm, the critical value Ds, and Bi passing through the low-pass filter 36. The filtering data analysis circuit 42 transmits the information of Bi to the switching circuit 48, and transmits the difference signal to the adder 44. The adder 4 4 adds Ds to the difference sent from the filter data analysis circuit 4 2 to reproduce Di, and then transmits this information to the peaking filter 46. As will be detailed in the following paragraphs, the use of the adder 2Ds may not necessarily be the same as the Ds stored in the input filter 1§ 30. Printed on the peaking filter 46 by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. The image data decompressed by the jpeg codec 50 is input, and the operation is controlled by the output of the adder 44. The filter 46 performs a filtering process opposite to that of the low-pass chirp waver 36, and changes the filter coefficient in accordance with the output of the adder to restore the displayed image. Therefore, when Di is large, the peaking filter 46 changes its filter coefficient to become larger, and when Di is small, the peaking filter 46 changes its filter coefficient to become smaller. As described above, the peaking filter 46 can remove the blurring of the outline of the image caused by the low-pass filter 36, and can faithfully reproduce it based on the original image. The switching circuit 48 has a control section not shown in the figure. The control section obtains 1222627 V. Invention description (29) The result of the filtering data analysis circuit 42 is for a block Bi (I is a zone) having a differential coefficient Di larger than a critical value ㈣. (Block number), and the peak wave filter 46 does not match the Bi block BKJ # i) (j is the block number), and does not switch through the peaking filter 46. 2-6 image compression / decompression system j j 〇 The operation of the image compression / decompression system 11 〇 The operation of the image compression / decompression system 110 is related to the monitoring system 100 of the present invention described below and will be described later. In FIG. 1, the image compression / decompression system 110 is considered as a part of the monitoring system 100, and the implementation type, cost, and number of parts are reduced.

In summary, the adaptive output digital filter 40 is a DS20. The JpEG file processor 120 is configured by a control program stored in the second memory 74 of the control device 60. The control program also controls the components connected to other control devices. 3 Control device 60 The control device 60 includes an expansion substrate PCI bus 62, a first interface 64, a second interface 66, a third interface 68, a CPU 70, a first memory 72, a second memory 74, a switch circuit 75, and communication. Component 76 and timer 78. In addition, the actual circuit is a bridge circuit in which an interface is inserted between the CPU 70 and the PCI bus 62. The PCI bus 62 is connected to the first to third interfaces 64 to 68, the JPEG codec 50, the first memory 72, the second memory 74, the switch circuit 75, and the high-pass element 76. The PCI bus 62 is provided with or without excluding a USB bus, an ISA bus, and other buses. The first interface 64 communicates with the alarm 12. The second interface 66 communicates with the MO drive 80 and can be constituted by a SCSI interface, for example. The third interface 68 communicates with the hard disk drive 82, for example, the IDE interface can be used. The paper size is applicable to the Chinese National Standard (CNS) A4 specification (21 × 297 mm). Please read the notes on the back 1¾

Order Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economy 1222627 A7 B7 V. Description of Invention () v 30; The higher interfaces 64 to 68 are applicable to any structure known in the industry ′ and its description is omitted here. In addition, the M0 drive 80 may be replaced with any other type of removable memory drive (for example, a CD-RW drive or a super-disc drive). The CPU 70, the first and second memories 72 and 74, and the timer 78 will be described later. These are the same recording methods used for implementing the example of the present invention. The first and second memories 72 and 74 may be regarded as one main memory. The first memory 72 is constituted by a volatile memory such as DRAM or SRAM. A control program stored in the hard disk 83 and / or the second memory 74 is carried in the first memory 72. In addition, the first memory 72 can temporarily store the compressed data transmitted by the cat codec 50 and / or the server file converted by the CPU 70. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. The second memory 74 stores control programs (application programs) for controlling the various sections, and is composed of, for example, a flash ROM that stores necessary BIOS data. Alternatively, the second memory 74 may be a part of the hard disk 83 of the hard disk drive 82. More specifically, the control program is a hard logic controller that stores and controls the jPEG codec 50, etc., a user interface, and disk access. An application program for realizing the exemplary recording method of the present invention can be created by any well-known development tool such as Visual C ++, Borland C ++, and the like, and therefore its description is omitted here. As described in detail later, the CPU 70 controls each unit based on a system parameter or a control program. The CPU 70 is a simple example of a control unit including an MPU. The switch circuit 75 decides to supply the compressed data from the codec 50 to 1222627 A7 B7 V. Description of the invention (31) The M0 drive or the hard disk drive 82 is supplied. The timer ^ § 78 can detect the time and / or period and display it, and it will be used by the CPU to generate control as described later. The first figure shows that the timer 78 is a timer built into the control device 60 (for example, an internal electronic timer of a general-purpose personal computer, etc.), but the timer can also be set in a plug-in manner for the control device. The interfaces 66 and 68, the CPU 70, the first and second memories 72 and 74, the switching circuit 75, the MO drive 80, and the hard disk drive 82 in FIGS. 2 and 3 are continuous records constituting the same state as exemplified in the present invention. system. This continuous recording system is capable of reducing costs by setting a conventionally necessary two M0 drives into one. Further, as described above, the continuous recording system can be configured by a single personal computer, and therefore, system space can be saved. The operation of the continuous recording system is described as part of the monitoring system 100. Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs, Consumer Cooperative, and the hard disk drive 83 of the hard disk drive 82 is a system parameter such as the storage monitoring system 100. "System parameter" refers to the image compression rate used by the codec, the recording time set when the warning signal is received from the warning device 12, the switching sequence and switching interval of the monitoring camera 10 generated by the selector 14, and the 1 interval The operating environment such as the recording day interval and the image receiving interval in one zone. When the system parameters are necessary to change these operating environments, the operator can change them individually. The communication element 76 is composed of, for example, a modem, and uses a telephone circuit network, a communication circuit (such as the US On Line), a commercial On Line, and / or a dedicated circuit. The communication circuit is also connected to the standard device of the recording method of the present invention which will be described later. Therefore, the operator applies the Chinese standard (CNS) A4 standard (210X297 mm) to this paper standard through a network adapter, for example. 1222627 A7 B7 V. Description of the invention (32 / Real-time service that can connect to one example of the recording method of the present invention. Next, the operation of the monitoring system 100 will be described, and the control device 60 placed in the monitoring system 100 will be illustrated. When the power is not displayed, 0s automatically executes the component program stored in the second memory 74 and loads the necessary program to the i-th memory 72. When a suspect knows that he / she is in the surveillance target area, The sensor detects a suspicious person and sends a signal to the interface 64 of the PCI bus 62 connected to the control device 60. The control program in response to this and stored in the second memory 74 of the control device 60 is the control selector. 14 and select the surveillance camera 10 near the suspicious person to try to identify the suspicious person. In the selection, the selector 14 transmits information about the situation of the suspicious person to the surveillance camera 10, and its lens can be changed and adjusted. Orientation or focal length 4. The image captured by the surveillance camera 10 is represented by, for example, a rectangular shape composed of 2 straight lines (pixels) and 720 horizontal lines at intervals of plural continuous states on a time series. The bureau ’s consumer cooperative prints the surveillance camera 10 of this embodiment. The power is often set to ON, but the setting of the video recording is started by a warning signal. Of course, it has nothing to do with the warning k number 彳 § number Often continuous, or (not shown in the picture) the subject will start recording the event video when a certain appointment time is reached (for example, starting at 6 pm at the end of working hours). Alternatively, by pressing record The manual operation of drawing the button is also possible. In any case, it is necessary to exchange the MO disk 81 of the MO drive 80. Instead of the MO drive 80, a smaller size than the M0 drive 81 such as a super disk drive is used. If you use a recording medium with a memory capacity, you can understand that the continuous recording time is even shorter. The information from the surveillance camera is selected by the selector 14 while taking photos 1222627

Correspondence between the camera and the information,-input video decoding while inputting. The following is for the convenience of explanation, focusing only on the information of the surveillance camera 10. The contrast-synthesized signal carried from the surveillance camera 10 is converted into a digital image by the video decoder 16 and transmitted to a suitable type of digital filter for digital input of DSP2G. Here, the operator manipulates the DSP2G redundant set and stores the critical value range into a suitable input digital filter 30. The adaptive input digital filter 30 determines whether the differential coefficient detection circuit 32 detects the differential coefficient of the input digital image and passes it through the low-pass filter 36. As for the information of Bi and Ds (Di-Ds) as filtering data, the signal is transmitted to the control device 60CPU70 through the PCI bus 62. Further, the switching circuit 38 passes the low-pass filter 36 for the Bi system, and outputs it as it is for β] ·, and transmits the data to the JpEG codec 50 as image data. However, the JPEG codec 50 cannot accept it internally unless the CPU 70 does not accept the acceptance instruction issued in accordance with the control program. Printed by the Consumers' Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs The exemplary monitoring system 100 of the present invention can be used in combination of a plurality of recording methods, each individually. The recording method includes an extended recording method in which the recording time is extended by deleting the repeated data after the recorded data, and a continuous recording method to avoid loss due to exchange. In addition, the present invention also proposes a detailed recording method in which the density of the recorded data is tightened from a certain time before the occurrence of the singal signal even in the case of using the extended recording method. 4 Extended recording method: The extended recording method of the present invention will be described below. This recording method is to record the time recorded on MO disk 81 (the capacity of disk 81 is not changed. The paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm)

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I 1222627 A7 --- ---_ B7 _ V. Invention (35) ^ '~~' '-The recording method of this embodiment. For example, video data-instantaneous capture of the prisoner's face may be very important in the camera. In this case, if the image data is discontinuous from the beginning, it is not good, and in the case of forgetting to exchange the M0 disk 81, all the image data cannot be obtained, which is not good. Therefore, in this case, in order to prevent missing the original data, continuous recording is performed in the normal recording mode, and the extended recording mode of this embodiment can be used 30 minutes from the beginning of recording or for example, before exchanging the M0 disk 81. . The recording method of this embodiment can be implemented by plural methods including the following four methods. The original limitation was to achieve the effect of reducing the recording interval per unit time and the effect of reducing the amount of recorded data per unit time, but the recording method of this embodiment is clearly not limited to these methods. It is also possible to set in advance which method should be adopted by the operator, and it is also possible to set cpu # by mistake. These methods can also be used in combination. 41 Records based on the control of the entry order: Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. The first method is to control the occurrence of the entry order and reduce the number of intervals per unit time. The following is a description with reference to FIG. 6. Here, FIG. 6 is a time chart illustrating the relationship between the receiving command and the image data of the same recording method as the example of the present invention. The acceptance command TC in the figure is represented by the ON and 0FF states. The ON state is the state of the access command TC, and the OFF state is the state of the party input command TC. As described above, the JPEG codec 50 can receive the video data ID (digital data) only by the input filter 30 when the input command TC is issued. As shown in Figure 6, the CPU 70 transmits 1222627 A7 ______ B7 to the JPEG codec 50 at time 0. V. Description of the invention (.) 36 / When sending and receiving the command TC, the JPEG codec 50 starts from time 0. The image data ID is received continuously (ie, without a time series break). All the received image data IDs are recorded on the κMO disk 81 continuously as described later. For example, with the command shown in Fig. 6, when the video data of the MO disk 81 with a memory capacity of ^ (bits) 1 interval Pn (bits) is recorded at 0 (intervals / second) The time T1 that can be continuously recorded is given a mathematical formula (unit is second). "Mathematical formula 1"

Cr T1 ----- Ρη · η This is the time to start recording at time 0 until the time? 1 Its ribbed disc 81 means that it can record video data. In other words, if the rib magnetic disc 81 is not exchanged, the image data after T1 will not be recorded. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. As shown in the lower part of Figure 6, when the order is returned and turned off, the JPEG encoder and encoder 50 will receive only the image data η, 13, etc. The image data 12, 14 and the like become interlacable. The first method is to pull data between units. The CPU 70 can freely set ON / OFF cycles of the received instructions such as tl, (t2-t1), (t3-t2), (t4-13) according to the initial setting or the setting of the operator. When the received command TC corresponds to the time when the image data η is recorded on the M0 disk 81, it will be recorded continuously (that is, the image data 13 will be started immediately after the end of the image data II) as described below. With the receiving instruction shown in FIG. 6, the image data is held on the M0 disk 81 with a memory capacity Cr (bit) of 1 uninterrupted remaining recording capacity Ca (bit). ) The image is recorded in n (interval / bit), and then the interval is reduced and recorded in m (bit / second). The magnetic paper 3a is not used. The Chinese paper standard (CNS) A4 is applied to this paper. (210X297 mm) 1222627

The record time of the continuity of the exchange of the disk 81 and the disk 81 is given by Math. "Mathematical formula 2"

Cr — Ca Ca T2 = ----- + —

Pn · N Pn · M This means that if the recording starts at time 〇, until time T22M 〇 Disk 81 can record video data. In addition, T1-T2 are given by Equation 3. "Mathematical formula 3"

Ca (n-m) T2 --ΤΙ ------ > 〇

Pn · Ν · m Therefore, according to the recording method of this embodiment, the MO disk 81 is capable of recording the image data of the time zone T2-T1 which is not known at all. In addition, the memory capacity Cr of the rib magnetic disk 81 does not change, so in other words, it means that the total time is equivalent to the time between image data. Furthermore, as described above, the control device 60 of the present invention can change the ON / OFF cycle of the received instruction. Therefore, for example, the image of the interval Pn (bit) is represented as 0 (interval / second) and m (interval / second). ), 1 (interval / second), k (interval / second), etc. (n Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs > m > l > k) to reduce the recording density and extend the recording time. can. 4-2 Recording of data under control of video decoder 16 and / or input filter 30: Next, the second method used in the first embodiment of the present invention will be described. The second method is to input the image data to the input filter 30 from the video decoder 16 and / or the JPEG codec 50 from the input filter 30 and apply the image data to this paper standard. China National Standard (CNS) A4 Specifications (-V. Description of the invention (38 are drawn in between. For example, the data composed of 丨 spaced by 240 vertical lines * 720 horizontal lines (for a 1-line unit of data that requires 2 bits, it is equivalent to 345, (600-bit) JPEG codec 50 When receiving from the input filter 30 with the receiving instruction shown in FIG. 6, the vertical and horizontal lines are drawn by 1 line each, and the vertical lines represent half of the vertical lines. * The image data (equivalent to 86,400 bits) of a rectangular image composed of 3⑼ horizontal lines is recorded. Since the number of necessary recording bits is reduced, it can be known that the recording time to the M0 disk 81 is extended The second method described above extracts data in units of lines (pixels). The JPEG codec 50 used in the present invention has instructions from the CPU 50 and only the image data from the input filter 30 The amount of hope is drawn Yes, and the amount of pull-out can be set based on the control program of the control device 6 0) 1] 70. The present invention has the advantage of having an unnecessary point of setting an independent pull-out device and simplifying the structure. However, the present invention It does not exclude the installation of an independent thinning device. If an independent thinning device is provided, especially when an image compression / decompressor other than a JPEG codec is used, the image compression / decompressor is not provided with It is effective in the case of the function of thinning out the image data. The employee cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs prints a record controlled by the code frame buffer 58: Next, the third method used in the first embodiment of the present invention will be described. In this method, the JPEG codec 50 selects the image data read from the frame buffer 58. First, the JPEG codec 50 transfers the image data transmitted by the input filter 30 as shown in FIG. 2 After receiving the instruction, the JPEG compression / decompression algorithm is not performed immediately, and the image data is temporarily stored in the code frame buffer 58. Thereafter, the jpeg codec 50 is based on the CPU 70 UL · The Zhang scale applies the Chinese National Standard (CNS) specification (210X297 mm) 1222627 A7 B7 V. The description of the invention (39) reads the image data from the code frame buffer 58. The instruction read from the CPU 70 is made If the shape is similar to the receiving instruction shown in Fig. 2, it can be seen that it has the same effect as that of the receiving instruction shown in Fig. 2. Here, the third method is to extract the data in intervals. The CPU 70 is based on the control. The point that the instruction can be controlled to read the instruction is the same as the first method. 4-1 The record of the entry control based on the data of the frame buffer 58: Next, the fourth method used in the first embodiment of the present invention will be described. In this method, the image data read from the JPEG codec 50 from the frame buffer 58 is thinned in the same manner as in the second method. Thus, it can be seen that the same effect as that of the second method can be achieved. Therefore, the fourth method is to extract data in line units. The point that the CPU 70 can control thinning based on the control instruction is the same as the second method. 4-5 Records based on compression rate control: The Intellectual Property Bureau of the Ministry of Economic Affairs ’Employee Consumer Cooperative printed a JPEG codec 50 to obtain the image data and perform DCT calculations. At the same time, it performed Huffman symbols and passed the compressed PCI bus 62 and transmitted to the CPU 70 of the control device. The general operation of the JPEG codec 50 is well-known by the aforementioned MD2310 and the like, and therefore its description is omitted here. The recording method instead of this embodiment is to set the compression rate used by the JPEG compression / decompression method to be higher than the compression rate performed in the conventional method (that is, the normal redundant recording mode), and reduce the recording in M. The amount of data on the magnetic disk 81 extends the recording time of the MO disk 81 by this. For example, it is known to change the compression ratio from 20 to 1/25. The compression ratio is set based on the system parameters stored in the hard disk 83 described above, so that the ^^ can be set freely. Whether the recording method of this embodiment is used or whether the recording method of this embodiment is combined with the recording method of A7 V. Invention Description (40 / the first embodiment) can be selected by the operator.

Page The recording method of this embodiment does not cause any data loss caused by the interlaced image data, but there is a loss of data caused by an increase in the dust shrinkage rate. The sequential DCT calculator is considered to be similar to the data of a point that is very similar to the image data and the other point that is very close to the point. The scalar quantity representing the point of the image is Fourier transformed to the power of the frequency axis. In the case of frequency spectrum, the power spectrum above a certain frequency can be regarded as almost zero. A person who cuts data by treating it as zero is equivalent to a crane. Therefore, at the time of decompression of the shaft_GT meter, the original image will not be reproduced at all and there will be no loss. When the compression ratio is increased, the losses are generally large. 4-6 Control of CPU70: Order the CPU70 printed by the Consumers' Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs to write the files: the information of the writers and annotations, and compress the data-generate JPEG files at the same time, and temporarily store this file in the Say memory 72. Thereafter, the CPU 70 transfers the JPEG slot file from the first memory 72 to the Mo drive 80, and records the JPEG file to the M0 disk 81. The control device selectively transmits this slot and the modem (not shown) connected to the PCI bus 62 to other systems through a communication circuit. These actions are controlled by the control program described above. At the same time, by using the application program stored in the memory 72, the CPU 70 can obtain the recording start time and the current time information from the timer 78 to know the recordable remaining time (and / or recordable time) of the M0 disk 81. Residual capacity). An example of the control method performed by the CPU will be described below with reference to FIG. 7. In advance, the CPU 70 can ask the operator whether to change the recording mode and whether the operator wishes to change the recording mode. If desired, the extended recording should apply the Chinese National Standard (CNS) A4 specification (210x297 mm) from this paper size. 1222627 V. Invention Information (41) explaining when to start is stored in the second memory 74 or the hard magnetic lion. Therefore, the CPU 70 makes a judgment (step reading) before writing «before the operator selects the change of the shirt selection recording mode or puts this information in the mth memory 72. The CPU70 selectively performs the above-mentioned questioning to the operator 30 minutes before the end of the memorable amount of the M0 disk 81. The operator can automatically do it before 3_4 as long as the operator does not accumulate objections. Mode of action. In addition, the control device 22 is displayed by a general-purpose computer having an input device such as a keyboard, a mouse, and a joystick. Therefore, the operator inputs selection or non-selection through the input device, as shown in the example of the present invention. Recording method. The structure of this input method is well known, so detailed descriptions are omitted here. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. If you do not select the extended 5 recording mode, the CPU 70 records the JPEG file to the MO disk 81 in the normal recording mode. In the normal recording mode, the JPEG codec 50 creates a JPEG file based on the receiving instruction (and a reading instruction similar to this instruction) shown in FIG. 2 using a known compression rate. Moreover, in the normal recording mode, the CPU 70 grasps the remaining amount of the memory capacity of the MO disk 81, so it is prepared for the operator 10 minutes before the end of the capacity s (or 10 minutes before, 5 minutes before, and so on for several times). MO disks are exchanged using warnings, indicators, sounds, or images cut into the screen 84, which are not shown in the figure. If the right control device 60 includes two MO drives 80, the operator must insert the MO disk 81 into another MO drive. When the CPU 70 determines in step 1002 that the change of the recording mode is selected, it shifts to the extended recording mode at the set time (steps 1006, 1008). In the extended recording mode, following the above-mentioned recording methods of the first and second embodiments, the paper size of this paper applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 1222627 5. Description of the invention (42) Any one or And other combinations to record a JPEG file on the Mo disk 81. Recording methods can also be combined for the extent of the extension. For example, in the first method of the first embodiment, the number of recording intervals per unit time is set to n, m, 丨, k, and the like. In addition, as described above, the setting time of the extended recording mode is for the operator or the CPU 70 to automatically set the time negatively (for example, 10 minutes before the end of the capacity of M0 magnetic thickness M). Does the current time of the CPU 70 match the set time? The timer 78 is used for judgment. Record to the set time in the normal recording mode (step 1004). Once the extended recording mode of step 1008 is ended, the processing from step 1002 is repeated for the new MO disk 81 exchanged. 5 Change of the recording density of the extended recording mode: In the aforementioned extended recording mode, in principle, the recording is performed in the normal recording mode, and the extended recording mode is used in the exchange to reduce the data loss during the exchange failure. On the contrary, in principle, the extended recording mode can be used to transfer to a higher recording density than the normal recording mode or the extended recording mode in specific cases. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs The present inventors and others are specialized in reviewing the discontinuous recording method described above. First, the present inventors reviewed a certain set time such as step 10 in FIG. 7 or an extended recording method from the beginning. The intermittent recording method is not limited to the alarm signal indicating the occurrence of an event transmitted from the alarm device 12, and the subject is recorded at a predetermined time interval or the number of code frames per unit time defined by the operator in advance. However, this recording method treats the information after the occurrence of the warning signal in the same way as the information before the occurrence of the warning signal. Therefore, there is a disadvantage that the information recorded after the event is insufficient. Secondly, the inventors reviewed the start of the National Standard (CNS) A specification (21 × 297 mm flying type) using the warning signal as a trigger. In the case, the warning signal goes from the warning to the control device 6 (Sopo 4 ' Transfer to normal recording mode (step let) (or transfer to = recording mode with higher density f material recording mode) until the alarm is transmitted 7⑶, which is _extended recording mode (step side). This recording mode Γ warns of money The occurrence of falsification is the occurrence of the event, and the alarm number is used as the f device to falsify the record. Therefore, it has the advantage of increasing the recording density after the occurrence of the warning signal. When it was discovered that the event P had occurred when the warning signal actually occurred, the heart alarm call signal triggered the material, and it was not possible to record the crime and the post-mortem image. Its friend lies in, for example, the detection that a suspicious person has invaded the surveillance In the case where a warning signal is generated from time to time in the target area, when the warning signal is generated, the so-called suspicious person has invaded the surveillance target area, and the suspicious person cannot be photographed to commit the crime. From the above reasons, it is known that the importance of data has increased at the time of the warning signal, and it is best to increase the recording density of the data (as much as possible to the maximum) from the point before the ship where the warning signal occurred. The method of increasing the recording density of the material slightly before and after the warning signal occurs with reference to Figures 8 to _ is described below. Figure 8 is a recording method of the present invention that implements the CPU 70 of the monitoring system 100 shown in Figure 丨According to the exemplary homogeneous recording method of the present invention, the data of the monitoring target is input from the monitoring camera 10 to the JPEG encoding / decoding device 50 through the video decoder 16. Then, the output of the JPEG encoding / decoding device 50, The supply to the first memory 72 is temporarily delayed, and it is converted to the JPEG filter by the CPU 70.

The memory 72 is supplied to one or both of the M0 drive 80 and the hard disk drive. In addition, the description of the secret branch on the system # is made to supply data to the M0 drive 80 from the memory 72. Number! When the memory 72 outputs data to the actuator, it only needs to change the fine drive 80 to a hard disk drive system. In this way, the first memory 72 stores the compressed data transmitted from the JPEG codec 50 with a delay and temporarily stores the compressed data. Also, as will be described later, the compressed data stored in the i-th memory 72 contains a larger amount of information than the amount of information recorded on the m0 disk. The result is by obeying! The delay time (time margin) of the transfer from the memory 72 to the M0 drive 80 is to select, edit, etc. the data temporarily stored in the first memory 72, and can transfer part or all of the data to the M0 drive 80. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs The following describes the recording method in the same way as the present invention. This recording method is shown in FIG. 8. After the power supply of the control device 60 of the monitoring system 100 is output, the warning signal is from the alarm 12 to the input of the control device 60, and the normal extended recording mode is applicable, The detailed recording mode started after the warning signal is input to the control device 22 (step 1102). In addition, the recording mode is one in which the control device 60 can be switched into the device through an operation panel, keyboard, mouse, etc., which are not shown in the figure (that is, the CPU 70 can also switch independently of the warning signal). As a result, the monitoring system 100 can be reset from the detailed recording mode to the extended recording mode after the end of the 100-series photography (criminal act, etc.) event. Hereinafter, the normal extended recording mode will be described with reference to FIG. 9. Here, Fig. 9 is a flow chart of a general recording mode for explaining a recording method exemplified by the present invention. In addition, the present invention is not limited to the one shown in FIG. 9. When the warning signal is supplied from the warning device 12 to the control device 60 as an insertion signal, the paper size is suitable for financial (CNS) A4 specifications (21Qx297 public attack) ^- 1222627 V. Description of the invention (45) CP _ '"D Beam scarf reading mode ㈣ material transfer fine recording mode controls the various parts. Insertion control can use any of the well-known in the industry, so its detailed description is omitted here The extended reading mode of communication 4 is the recording mode adopted by the monitoring system 100 until the warning signal is supplied from the alarm device 12 to the control device 60, and any method of the continuous recording mode described above can also be adopted. However, as shown in FIG. 9 The flowchart has to pay special attention to the problem of data delay in the first memory 72. More specifically, the "normal extended recording mode is, for example, in a state without an event, the surveillance camera 10 monitors the information of the subject, (Figure When the theme reaches a certain reserved time (for example, starting from 6 pm at the end of working time), when the scheduled recording starts, the response to the warning signal is stand as (wait ), It is used at the time of recording (as described below from memory 72 to ribbed magnetic disk 8m). In the usual extended recording mode printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs, the surveillance camera monitors the surveillance target ( (Photographed body image), and its surveillance information is incorporated into the U-memory body 72 through the JPEG codec 50. The image time interval or the number of code frames Fr per unit time is from the first memory 72 When the output data is recorded to the MO disk 81, it is used below the recording time interval set by the operator described below or set above the number of code frames Fu per unit time (step 2002). The relationship Fr ^ Fu is based on time The comparison is the opposite when compared at intervals. In this embodiment, the control program or system parameters are written into the second memory 74 or the hard disk 83 by means of the marker. However, the focus of the present invention is not on the operator. Changes or settings are excluded. In addition, in this embodiment, the JPEG codec 50 receives the image time interval of the digital image data from the video decoder 16 or ------ -4R-_ This paper size applies the Chinese National Standard (CNS ) A4 specification (210X297 mm) 'One'-1222627 A 7 B7 V. Description of the invention (46) The number of code frames per unit time, and the first memory 72 receives digital image data from the JPEG codec 50 ( The time interval of the image or the number of code frames per unit time is set to Fr in the same manner. However, the present invention does not exclude the difference between the two. In this case, Fr means that the first memory 72 is translated from the JPEG code. The encoder 50 receives the image time interval of the digital image data or the number of code frames per unit time.

Fr is preferably set to be equal to the shortest interval that can be recorded by the surveillance system 100 or the maximum number of code frames Fm per unit time. In this way, it is possible to avoid failure in receiving photographic image data. Fm is determined by the performance of the JPEG codec 50 or the first memory 72. For example, the state of Fm < Fr is supplied to the j-th memory 72 per unit time with less information than the maximum amount of information that can be recorded in the first memory 72, and the first memory 72 is used to the maximum. In addition, the state of Fm> Fr is that more information than the maximum amount of information that can be recorded by the first memory 72 is supplied to the first memory 72 per unit time, and the first memory 72 fails to receive the information. Therefore, for example, in the first memory 72, a digital image is preferably recorded at Fm = Fr = 30 yards / second (sec). CPU70—When the remaining recording capacity of the first memory 72 is completed, that is, until the first memory 72 is full, it is stored in the first memory 72 (step 2004). From the JPEG codec 21 Digital image data. CPU70—When it is judged that the first memory 72 is full (step 2004), the digital video data is transferred from the first memory 72 to the memory medium M0 disk 81 by Fu (for example, 10 yards / second) from the earlier one. Record in sequence (step 2006). Understandably, in the normal extended recording mode, the digital image data recorded from the first memory 72 to the MO disk 81 of the MO drive 80 is thinned at a frame of 20 yards per second. Those who are allowed to be drawn out in this way — β in 3 茁 士 茁 师 二 二 said, ----------- 4Q-_ (Please read the precautions on the back before filling this page)

Printed by 1T Consumer Cooperatives, Intellectual Property Bureau, Ministry of Economic Affairs

▼ I Cover 1222627 A7 B7 V. Description of the invention (47) — '-As mentioned above, the usual extended recording mode is based on photography that does not occur, so the importance of shell material is low, and continuous image data In a short time, it contains about the same information, so it does not affect the quality of the Erbeixen obtained even if it is omitted, and the short-term image data of the monitoring system 100 fails to be entered as a whole to extend the recording time, etc. reason. It is also understood that the digital image data is delayed only by the memory capacity of the memory 72. Furthermore, it must be noted that the values of Fm, Fr, and Fu are only examples, and that Fu = Fr can also be set. Step 2006 also includes setting the number of recording code frames per unit time to zero. In this case, in the normal extended recording mode, no data is recorded on the M0 disk 81, and the digital image f is stored temporarily for a period of time in the redundant memory capacity of the memory. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs The detailed recording mode is described below with reference to Figure 10. Here, Fig. 10 is a flowchart illustrating a detailed recording mode of the recording method in the same manner as the exemplary recording method of the present invention. The detailed recording mode is the same as described above, which is the recording mode adopted by the monitoring system 100 after the alarm signal is supplied from the alarm 12 to the control device 60. The alerter 12 generates alert number 4 in response to a detection signal from a sensor not shown in the illustration of a suspicious person intruding into the monitoring target area. Then, the alarm device 12 transmits the alarm signal to the interface 64 of the PCI bus 62 connected to the control device 60. With this, the CPU 70 of the control device 60 recognizes the warning signal. In this way, the detailed record mode is the record mode used when an event such as a criminal act occurs. In response to the warning signal, the CPU 70 controls the selector 14 and selects one near the suspicious person, and tries to identify the suspected person depending on the camera 10. In the selection, choose to write 14 to change the location of the suspicious person to the surveillance camera 10, and the variable 1222627 A7 V. Description of the invention (48 The direction or focal length of the k-selector printed by the employee consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs The image captured by the surveillance camera appears in a rectangular shape composed of 240 vertical lines (pixels) and 720 horizontal lines of ice, for example, with a plurality of consecutive continuous monitors on the time series at intervals. The information from the surveillance camera 10 is obtained by The selector 14 is input to the video decoder 16 while corresponding to the camera information. The following description focuses on the information from a surveillance camera 10 for the convenience of explanation. The contrast and composite signal sent from the surveillance camera 10 is decoded by the video. The encoder 16 converts the digital image into a JPEG codec 50. The recipient of the image data generated by the JPEG codec 50 is not able to control the detailed recording mode based on a control program or pure parameters. The above steps 2002 and 2006, however, step 6 is replaced by step 2_. Step 2_ performs at least two actions. These actions are best performed weekly, and The present invention may alternatively perform any one of these actions. In addition, these actions are also applicable to the case where the number of recording code frames per unit time is set to 0 in a normal extended recording mode. First, Step 2008 The digital image recorded at the time when the warning signal occurred in the record body 72 is written into the magnetic disk 81 in one piece. In this example, the digital image data is bet from the JPEG codec 50 to the milk drive. The situation is replaced by, from; PEG encoding and decoding to the first memory 72 temporarily, and then output from the first! Memory 72 to the _ area actuator. Therefore, the first memory 72 can function as a buffer n Delayed digital image data is recorded on the MO disk 8. This allows the recorder to record materials that cannot be recorded before the warning signal, such as' detecting suspicious persons invading people to monitor the reading of the county area and generating a warning 1222627.

The signal department of the signal, when the warning money was generated, the suspicious person had already completed the so-called criminal act of invading the surveillance target area. Therefore, the warning signal was used as a trigger to start Kanji's ride. Like riding Matsuno, suspicious persons took criminal actions. However, according to the recording method according to this embodiment, it is also possible to record data of a certain time before the generation of the warning money, so it is possible to capture, for example, a suspicious person who breaks a window and commits an invasion crime. The time during which Lü Bu ^ bluffs is generated depends on the memory capacity of the memory 72. For example, if the 1st Dragon 72 stores digital image data of 6_frame components, the set time is the delay time (for example, 20 seconds) equivalent to the data of the _code frame. Therefore, at this time on the ship's magnetic disk 81, the digital image data of the maximum past 20 seconds before the time when the warning signal is generated can be written. Since the maximum 20 seconds has passed, the operator can select any period within 20 seconds to set. From this, it can be understood that the aforementioned certain time can be adjusted by increasing the capacity of the first memory 72. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. After the warning signal is generated, CPU_ # Fu is set to a value (Fu,) better than Fu in step 2006 shown in Figure 3, better Fr, no matter how good Which is Fu = Fr = Fm. As described above, by setting Fr to be close to Fm, the digital video data is stored in the first memory 72 with almost no loss. As described above, generally, in step 2006, from the first memory 72 to the MO disk 81, the digital image data is recorded as Fu, so the data is discontinuous. In contrast, step 2008 shown in FIG. 10 is based on the fact that the image data after the warning signal is more important than the time before the warning signal is generated, to prevent the loss of information due to the increase in data recording density. -52- This paper is again applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 1222627 M —____ 87 _ _ V. Invention Lake (5 ()) '~~- -Next, the effect of the recording method of the present invention will be described with reference to FIG. 11. Here, Fig. 11 is a pattern diagram related to the passage of time in the recording method of the present invention. FIG. 11 shows the effect of the recording method of the present invention in terms of the number of frames, but is expressed in terms of recording time. However, the operator in this field can easily replace the number of frames with this specification. In the figure, the shortest time interval corresponding to the above-mentioned Fm monitoring system 100 can be recorded. TG is the time when the control device receives the warning signal from the controller 12. The control device 60 can know the event occurrence time TG from the timer. Ta is equivalent to the above-mentioned Fu, the video recording time after the warning signal is set by the operator. Tb is the video recording time before the warning signal is set by the operator with Tm as the limit. The time (for example, equivalent to the above 20 seconds) is the longest video recording time that can be stored in the memory 72. In addition, Tc is the video recording time interval set by the operator, and the relationship with the method of the present invention is equivalent to the video recording time before the warning signal. The grid (B) indicates an extended recording method that is often or from a certain set time, and the subject image is intermittently and normally recorded with time ^ regardless of the presence or absence of a warning signal. According to the recording method of the grid (B), the images before and after the time T0 cannot be recorded, and since the recording density of the images after the time Tg is relatively sparse, it is understood that the acquisition of necessary information is likely to fail. The grid (C) is recorded in the extended recording mode before the warning signal is generated, and after the warning signal is generated, the operator changes the recording time TC to a settable time Ta (sec) and shifts to a denser recording mode or normal Recording mode. Therefore, the recording method of the grid (C) is that the monitoring system 100 can record images at the shortest time interval that can be recorded after the warning signal occurs. Compared with the grid (B), the paper size applies the Chinese National Standard (CNS) A4 specification. (210X297mm) (Please read the notes on the back before filling in this page}

1222627 A7 ----- B7_ V. Description of the invention (51) The time period can minimize the failure of information acquisition after time TG. However, the warning signal is recorded by a certain time interval Tc before the occurrence of the warning signal, so it is highly likely that a decisive moment cannot be recorded. The recording method of this embodiment is equivalent to the grid (A). The images captured by the surveillance camera 10 are often stored in the first memory 72 at the shortest time interval (ΔT / sec) that the surveillance camera 10 can record. The digital image data is recorded on the MO disk 81 (that is, the normal extended recording mode) at every certain time interval Tc (sec) set by the operator before the warning signal occurs. However, the control device does not use the alarm signal as a reference, and the operator sets the image recording interval from -Tb to + Ta (sec) in advance. It is automatically changed to the recording interval ΔTi (from c) and recorded on the MIMO disk 81 without any leakage (detailed recording mode). As a result, the decisive moment and its passing image can be stored on the MO disk 81 without loss, and the capacity consumption of the MO disk 81 can be increased to achieve long-term monitoring. Ta + Tb in Fig. 11 is equivalent to addition. In addition, although the recording density after TG + Ta is not shown in FIG. 5, it is better to increase the recording density to be higher than Tc, and it is better to continue to record the subject intermittently and continue at 6 recording intervals (sec ) It is preferable to record on the Mo disk 81 without leak. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs This example is to divide the recording mode into extended recording mode and detailed recording mode with or without warning signals. Alert information and further divide the detailed recording mode into multiple stages. In addition, regardless of the presence or absence of a warning signal, the control program can also be set by operation selection or ㈣〇 to negate the use of detailed memory. For example, the screen 84 to be described later during the work hours or the guards will monitor the actual time as the normal extended recording mode. In addition, the paper size applies the Chinese national standard (CNS> A4 specification (21GX297 mm. ; "-1222627

Exceptions are treated as detailed records. These are not limited to this embodiment, and are also applicable to any other examples of changes to be described later. Next, other embodiments of the present invention will be described. The recording method of this embodiment is in the detailed recording mode. The compression rate (that is, the normal extended recording mode) used by the JPEG compression / decompression algorithm is set to be lower than the compression rate performed in the conventional general case, and Increase the amount of information recorded on the M0 disk. For example, the conventional compression ratio is changed from 1/20 to the compression ratio of 1/15. This can prevent failure to obtain information after the event. As for the setting of the compression ratio, the ^^ redundancy can be freely set based on the control program. Whether the recording method of this embodiment is adopted, or whether the recording method of this embodiment is combined with the recording method of the foregoing embodiment, can be determined by the operator. In other words, in the recording method of this embodiment, the step of setting the compression ratio lower than that in the normal extended recording mode is configured as step 001 before step 2002 shown in FIG. 9, and will be changed from step 200. , 2002, 2004 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs and the process of 2006 constitutes a detailed record mode. Instead, step 2001 may be placed before step 002 shown in FIG. 10, and a process consisting of steps 2001, 2002, 2004, and 2008 may be used as the detailed recording mode. The recording method of this embodiment is to prevent the loss of data due to the reduction of the shrinkage ratio. Sequential DCT calculation is to consider the negative material of a point in the image data and other points that are very close to the point as the same or very similar. It means that the vector of a point in the image is transformed into the power spectrum of the frequency axis by Fourier transform. Power spectrum above a certain frequency is almost regarded as a method of Q. The cut-out data is regarded as compression by treating it as 0. Therefore, the Chinese paper standard (CNS) A4 specification (210 parent ^ 97 public ^ 1222627 A7) _______B7__ will be applied to the compressed paper size by sequential DCT calculation. Description of the invention (53) When the compressed data column is decompressed, the original image will not be reproduced at all and will only contain loss. If the compression rate is reduced, the loss will generally be reduced. This embodiment is based on the warning signal. Change the recording mode and / or compression rate. However, the digital recording method of the present invention can also be applied to other than the monitoring system. Therefore, the trigger signal is certainly not limited to the warning signal. Moreover, this embodiment is to delay the delay of digital image data to It can be performed by the memory, but of course, other components (code frame buffers and other buffer components) can perform the same delay function. 5 Continuous recording method: Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs, and then explain to avoid A continuous recording method that results in data loss during exchange. The CPU 70 obtains compressed data from the JPEG codec 50 and creates a JPEG file. After temporarily storing this file in the first memory 72, it is transferred to the MO drive 80 and recorded. However, the pEG file data exceeding the memory capacity of the M0 disk 8 is transferred, so the operator must exchange it M〇 Disk 81. In order to avoid the state that jpEG files cannot be recorded when the MO disk 81 is exchanged, the control program stored in the second memory 74 follows the control sequence of FIG. 12 or FIG. 13 The recording control is performed. Here, FIG. 12 shows another example of the control flow of the continuous recording by the CPU 70. In this embodiment, the JPEG file transfer is Ti (byte / sec), and each of the milk disks 81 The memory capacity is Cr (byte), and the transfer rate of the MO drive 24 is Tr (byte / sec). The memory capacity of the hard disk drive 83 is Ca (byte), and the transfer rate of the hard disk drive 82 is Ta (byte / sec). The "transfer rate" in this embodiment refers to the average transfer rate that includes operations such as issuing notes, positioning, and rotation wait time. In addition, the following formulas in this embodiment are valid. This paper standard applies the Chinese g standard ( CNS) A4 specification (210 χϋ 1 ----- 1222627 A7 ______ __________B7 V. Description of the Invention (54) [Mathematical formula 4]

Tr > Ti [Mathematical formula 5]

Ta > Ti 5-1 is the time when the data is completely increased. Refer to Figure 12 at the beginning. In order to record the JPEG slot on M0 disk 81, the second memory 74 is stored. The control program controls the switching circuit 75, the second interface 66, and the M0 driver 80 (step 1220). In addition, as described above, generally, when the recording is started by a warning signal, the judgment step of whether or not to receive a warning signal is arranged at the beginning of FIG. 8. Furthermore, this state is now called "Phase 1". In phase 1, the data stream of the JPEG file is transmitted wTi (byte / sec) continuously and input to the MO drive 80 through the second interface 66. When the residual capacity of the rib magnetic disk 81 is lost to Crr (byte), the M0 disk can only record JPEG files at time t1 (sec) until saturation. Here, u is defined by the following formula: [Mathematical formula 6] Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs

Crr T1 = ----

Ti Second, before the M0 magnetic 81 is full, the switch circuit 75 switches the file input position from disk drive 1§80 to hard disk drive 82 and controls its control program (step 1204). Since then it has been called "phase". Also 'simultaneously' the CPU 70 glory 84 other display devices (not shown) and / or (not shown) a loudspeaker prompts the operator to exchange the M0 disk 81 (step 57) China National Standard (CNS) A4 specification (210X297 mm) Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs, Consumer Consumption Cooperative, 1222627 V. Invention Description (55) 1206). Here, the control program is regarded as the operator in order to exchange the ship's disk The time tc (sec) of 81 (step 1208). After the time tc for the disk exchange (step 1208), the control program again switches the input position of the JPEG file from the hard disk drive 82 to the magnetic drive 80 'and ensures that The data bus from the hard disk drive 82 to the magnetic disk drive 80 (step 1210). At the handle, the MO disk 81 records the jpEG broadcasts transferred from the 苐 1 memory 72 'and it has been exchanged when the disk is exchanged. Both the data stored on the hard disk 83, etc. The data transmission will alternate the data from the JPEG codec 2 and the data from the hard magnetic drive 2 driver 26 with 1 bit or each desired bit. Enter MO disk 81. It is to interact Is the input bit determined by the control program in advance and when the hard disk exchange healthy disk drives stored capacity Q Fo) is the expression by the following equation. [Mathematical formula 7]

Ct = Ti · Tc In order to implement Mathematical Formula 7, the memory capacity Ca of the hard disk 83 must be sufficient for Mathematical Formula 8. [Mathematical formula 8]

Ca ^ Ti · Tc The transfer rate hole from the hard disk drive 82 to the MO drive 80 is given by the following formula. [Mathematical formula 9]

Jcniax ^ Jr— Τι [Mathematical formula 10]

The paper size of the table is applicable to Chinese national standards (CNS (2) 〇 × 297 mm

^^ 627 A7 ___B7 V. Description of the invention (56) —— '~

Ti2 tc

Tcmin = -------

Crr — Ti · tc

The maximum value of Tc Tcmax (byte / sec) is determined by the transfer rate of the MO driver 80. The minimum value Tcmin (byte / sec) is limited by the condition that the data stored on the hard disk 83 during disk exchange must be terminated before the MO disk 81 is full. When the transfer rate Tcmin starts to be copied on the hard disk 83 and the MO disk 81 is full, the conditions for the completion of copying from the hard disk 83 to the MO disk 81 are listed below. [Mathematical formula 11] (Ti · Tc) Ti

Crr = TiTc + -------

Tcmin When Tc is obtained from the mathematical formula II, the mathematical formula i0 can be derived. If the performance of the drive 80 is to be maximized, the transfer rate 1 of the hard disk drive 82 must satisfy the formula 12 shown below. [Mathematical formula 12]

Ta ^ Tr-Ti Mathematical Formula 12 does not indicate that the limit value of the control method can be realized. However, the hard disk drive 82 must satisfy the mathematical formula η listed below. [Mathematical formula 13]

Tcmin (Ti2 · Tc)

Tag -------

Crr-Ti · tc When copying from hard disk 83 to MO disk 81 is finished (step 1212) 'The data bus 80 from hard disk drive 82 to MO drive 80 is blocked (step 1214)' The result The process returns to the phase (step 1202), -59- This paper size applies the Chinese National Standard (CNS) A4 specification (2) 0X297 mm. (Please read the precautions on the back before filling this page)

Line I ^ 2621 H: A _ _ Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs A7-^ ____ B7 Description of Invention (57) The following is achieved by repeating this status to achieve continuous records. In addition, when the process returns from step 1212 to step 1202, the information from the hard disk 83 has been recorded on the M0 disk 81. However, the CPU 70 uses the timer 75 and the like to calculate the capacity of the stored information. The M0 disk 81 is monitored for time t1 until it is full. The input data line of the JPEG file recorded on the MO disk 81 is recorded at the address not in time series. Therefore, it must be adjusted by software when it is read out. For example, if the JPEG file uses software that is read sequentially from the earlier of the recorded time, the JPEG file can be read in time series, so the sequence number of the image data is correct. As for how to build the software, it is easy for the practitioners, and the detailed description is omitted here. Although the flowchart shown in FIG. 12 is not particularly shown, in principle, when the input of the compressed data row from the JpEG codec 50 ends, or when the transfer from the ^ th memory 72 ends, in principle It's over. For example, during the processing in step 1202, the input of the data from the JPEG codec 50 is terminated, and the operator is notified of the message through the screen 84 or a display device not shown in the figure to terminate the recording. When the input of the data from the JPEG codec 50 is completed in the processing of step 1204 or step 1210, the CPU 70 passes the screen 84 or the display not shown in the icon at the time of step ^? ,,,; The device, etc. notifies its message and terminates the recording. 5-1 Records that completely correspond to the time series of the data and the increase in the address. Next, a description will be given of a method of controlling another continuous recording of the present invention with reference to FIG. This control method is different from the control method shown in Figure 12. The time series of the input data corresponds to the recorded address. At this point, it is better for the software used for reproduction to read information in order of address. Therefore, this paper ruler (please read the precautions on the back before filling this page), tr 1222627 A7 ---_____ B7 '~- ------------ V. Description of the Invention (58) It is simpler than the software used in Figure 12. In addition, according to this control method, the order of the recording time of the recorded information can be continuously recorded at the address, so even if the software used is used in the method shown in FIG. 12, it can be read correctly. The control method shown in FIG. 13 is the same as that shown in FIG. 12 of step 1202 and even 1208, so detailed descriptions thereof are omitted. The control method shown in Fig. 12 uses the mathematical formulas 1 to 5 shown in Fig. 13 for the same control method. However, in the method shown in FIG. 13, step 1202 is called "phase 1", steps 1204 and 1208 are called "phase 2", and after step 1122, it is called "phase 3". Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, and according to the control method shown in Figure 9, the characteristic time for disk exchange is tc (step 1208). The data bus of the disk drive 82 ensures the data bus from the hard disk drive 82 to the MO drive 80 (step 1222). This point is different from the step 1210 where the MO drive 80 receives data from both the first memory 72 and the hard disk drive 82. The result is that the hard disk drive 82 continues to receive JPEG files from the first memory 72, and then outputs the data stored in the hard disk 83 and the data input thereafter to the M0 drive when the M0 disk is exchanged. Descent 80. Before the MO disk 81 is full, the entire contents of the hard disk volume are copied to the M0 disk 81. The transfer rate Tc at this time must satisfy the following formula. [Mathematical formula 14]

Tc ^ min (Tr, Ta) Here, 'min (Tr, Ta) means the smaller of Tr and Ta. And the paper size of this paper applies the Chinese National Standard (CNS) A4 specification (2lGx297 mm)-"1 ----- 1222627 A7 __B7 V. Description of the invention (59) Time t after the transfer of the disk 81 has started When the recorded capacity of the hard disk 83 after sec) is set to C (t), (please read the precautions on the back before filling this page) [Mathematical formula 15] C (t) = (Ti-Tc) · T + Ti · Tc- (Ti-Tc) · Tc = (Ti-Tc) · T + Ti · Tc Here, Tc is limited by the following formula. [Mathematical formula 16]

TiCTc ^ Ta-Ti When the time required to copy all the data of the hard disk 83 to the MO disk 81 is set to tcc (sec), it corresponds to t when C (t) = 0 in Math. 15, so tcc Has the following formula. [Mathematical formula 17]

Tc tc

Tcc = -----

Tc a Ti

Since MO disk 81 cannot be saturated between Tcc, the following formula must be satisfied. [Mathematical formula 18]

Tc · tc (----— tc) · Tc ^ Crr Printed by the Intellectual Property Agency of the Ministry of Economic Affairs

In Tc-Ti Mathematical Formula 18, the reason for subtracting tc is because disk 81 is exchanged during tc, so no data is transferred to M0 disk 81. Tc is limited by a mathematical formula with the following formula. [Mathematical formula 19]

CrrTi

Tc ^

Crr—Ti · tc This paper size applies to Chinese National Standard (CNS) A4 specification (210X297 mm) 1222627 A7 B7 ------- ____ V. Description of the invention (60) According to the above description, if this control method is to be implemented, It is necessary to satisfy Mathematical Formula 16 and Mathematical Formula 19. In this way, all the data recorded by the hard disks can be copied to the M0 disk 81, and at the same time when the copying ends, the data bus from the hard disk drive 82 to the M0 drive 80 is blocked, and at the same time, the data input The destination is switched from the hard disk drive 82 to the MO drive 8 (main step 1226). This result is returned to step 1102 of phase 丨 and the following process is repeated so that a continuous recording can be achieved. In addition, the flowchart shown in FIG. 13 is not particularly shown, but in principle, when the input of the compressed data sequence from the jpEG code #coder 50 is completed, or when the transfer from the first memory 72 is ended, in principle It's over. For example, at the processing of step 1202 or 1226, the data input from the JPEG codec 50 is finished, and the CPU 70 notifies the operator of the message through the screen 84 or a display device not shown in the figure, and the recording ends. When the data input from the JPEG codec 50 is completed during the processing of step 1204 or 1222, the CPU 70 notifies the operator of the message through the screen 84 or a display device whose icon is not shown at the end of step 1224. And end the record. Parallel to the recording, the information of the video camera 10 can also be displayed on the screen. For example, the screen 28 may be divided by the number of video cameras 10 and the entire camera information may be displayed on one screen, and a screen 28 corresponding to the number of cameras may be provided. The screen 84 may also be provided in the immediate vicinity of the control device 60 itself, or in another room away from it. In the case where a plurality of cameras are displayed on the screen 84 as divided screens, the relative display positions of the divided divided daylight planes can be set using the code frame buffer 58. For example, in the case of 4 divisions, field characters are juxtaposed, horizontally or vertically 4 juxtaposed, and so on. Said in mm)-^ —- (Please read the notes on the back before filling out this page) Order printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 1222627 V. Description of the invention (6ι) Decompress the memory of M0 disk 81 In the case of a jpeg file, the M0 disk 81 that records the JPEG file desired by the operator is first inserted into the M0 drive 80. Then, the CPU 70 extracts the information recorded in the annotation marker according to the control program 'and transmits the extracted JPEG file to the jpEG codec 50. The JpEG codec 50 decompresses and transmits it to the video encoder 18 as a digital image signal according to the decompression rate recorded in the quantization table definition (DQT) marker of the transmitted jPEG file. In addition, cpu70 generates file data based on the information of the extracted annotation marker from the control program and transmits it to the adaptive output digital file 40 of Dsp20. The JPEG codec 50 decompresses the sent file and transmits it to the adaptive output digital file of the DSP 20. The adaptive output digital file is cut in the file data analysis circuit 42 and obtained with the information of "and", and passed the peak eaves case 46 or not. The switching circuit 48 transmits the peak value for the Bi system and outputs the signal locally to the BJ, and transmits these to the video encoder 18 as an image. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs The video encoder 18 converts the digital image data output from the output file 40 into a contrast composite signal and transmits it to the screen 84 and displays the signal. In addition, in the present system 100, in order to prevent continuous display of camera information, it is preferable to provide a screen 84 exclusively for reproduction. In addition, the control circuit has a software function for editing (reproducing, fast-forwarding, reversing, zooming in, zooming out, rotating, etc.) the day and time of the screen 84. Therefore, the operator of the control device 60 can confirm and edit desired image information .

In addition, the control program of the present invention uses a JPEG file generated by Ds different from the above Ds or the knowledge that the annotation marker does not contain Bi and other information. JpEG Printed by the Intellectual Property Bureau Staff Consumer Cooperative of the Ministry of Economy 1222627 A7 ___ * ____ B7__ 5. Description of the invention (62) The files can also be recognized at the same place. Therefore, the Ds used for output file 4 should not be the Ds set by input file 1 as originally used locally, but the Ds transmitted from JPEG file processor 120 (control program). In the case that the annotation marker does not even contain Bi and other information, the peak file 46 does not operate and the output of the JPEG codec 50 is originally turned into the output of the output file 40 of the DSP 20 to activate the switching circuit. In addition, the JPEG codec 50 such as MD2310 described in the embodiment also has the control function of the code frame buffer 58. Therefore, all data transmission about the JPEG codec 50 is performed through the code frame buffer 58 . Therefore, not only the necessary Lasda / block conversion for compression / decompression, but also the functions of controlling, enlarging, and reducing the display position of the image are also performed by the JPEG codec 50. In this embodiment, the input image is divided based on a block having a size of 8 * 8 pixels, but of course, it is not limited to this size. Also, it is possible to set a plurality of low-pass filters having different thresholds. Furthermore, the application of the present invention is not limited to a surveillance system, and it can be understood by those who are engaged in this business if they cover many branches, such as editing high-resolution photos or cartoon images using a computer. Furthermore, in this embodiment, the image is formed in JPEG format. However, the same monitoring system 100 as exemplified in the present invention is obviously applicable to any other format (for example, GIF format). Therefore, the monitoring system 10 () can be applied to any image compression / decompression device other than a JPEG codec. " In addition, according to the continuous recording method illustrated in the present invention, the ^ " Zhang scale suitable for financial relations (CNS) χ 297 public attack fly-^ ------ (Please read the note on the back first (Fill in this page again)

A removable memory drive is used for recording. When the removable memory is exchanged, the data is temporarily recorded on the fixed disk of the fixed fixed disk device. Then, by recording on the fixed disk, The data is transferred to the new removable memory for continuous recording. Therefore, as long as the effect can be achieved, methods other than those shown in Figs. 12 and 13 may be used, and this should be understood by those in the business. It is needless to say that the recording system of the present invention is not limited to the recording of video data. 6 Method for automatically setting and updating system parameters and control programs: The method for automatically setting and updating the system parameters and control programs of the present invention will be described below with reference to FIGS. 1 and 2 and even FIG. 16. Here, FIG. 14 is a schematic block diagram illustrating a method for automatically setting and updating a system parameter and a control program of an exemplary monitoring system of the present invention. Fig. 15 is a flowchart of the main execution control program 142 according to the execution of the CPU 70. FIG. 14 is a program based on the current program 152 that is mainly executed in the execution shown in FIG. 1 by the CPU 70. Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs, f. Further, the hard disk 83 (or the second memory 74 instead) stores the current program 152. And in selection, the hard disk 83 has 1]} detection program 164 shown in Fig. 1. The ID detection program 164 corresponds to, for example, the ID data 172 contained in the MO disk 81. If the ID data 172 is not a thing, the communication with the data of the MO disk 81 should be stopped or its information should not be displayed through the figure The display and other devices. In FIG. 14, the control program 142 is substantially the same as the control program file 154, but the CPU 70 assigns parameters in order to clarify the program being executed.

1222627 A7 B7 V. Description of the invention (M) According to the number. The current program 152 is a program for setting and updating the control program 154. The current program 152 is set based on that the control program 154 cannot be set and updated by itself. The system parameters 144 are the same as the above, which are the image compression rate used by the JPEG codec 50, the recording time set when the warning signal is received from the warning device 12, and the switching of the monitoring camera 10 formed by the selector 14. Sequence and switching interval, 1 interval 1 interval recording interval and image receiving interval, etc. The system parameter 144 has a flag 144a. The flag 53 identifies whether the system parameter is to be updated in its entirety or in various operating environment conditions. The system parameters 144 are set or updated collectively by the operator individually or as will be described later in the automatic setting and updating procedure when necessary for setting or changing these operating environments. The Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs prints, for example, three surveillance cameras (first to third surveillance cameras 10) not shown in the figure, from the first camera 10 to the second camera 10, and from the second camera 10. Consider the case where the order is switched to the third camera 10 and the third camera 10 to the second camera 10. That is, if the marker of the surveillance system 100 is configured to switch the surveillance camera 10 every 3 seconds, the system parameters are constructed, and if the operator considers that the subject image of the third camera is particularly important, it is only switched from the third camera to the third. 1 The shooting time can be set to 6 seconds, for example. This individual change (setting customer specifications) may cause a return of 3 seconds due to the subsequent automatic update of the system number of 144. Therefore, the operator maintains the 6 seconds by setting the non-updatable flag of 14 seconds. Settings. Such a setting is, for example, a monitoring system including a high-grade product level at a gem store in a department store, and a relatively low-cost, low-price product level monitoring system composed only of food products, which is extremely convenient in distinguishing. 1222627 A7

V. Invention Description (65) In addition, by notifying the conditioner of this condition, the operator can update the system parameters while maintaining the desired settings. Of course, the operator can frequently update the system parameters by automatically updating the program, and thus can set the flag 144a. The flag 144a also checks the operator ID information that can contain the ID data 172, and cannot be used by other surveillance systems to update the system program or other malicious update programs such as viruses to update the system parameters 144. The ID data 172 is associated with certain information. If they do not agree, you can abandon the update. In addition, if ID comparison is necessary, it is of course possible to combine fingerprints, voiceprints, and passwords. It is also possible for the operator to confirm when accessing the control device. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. Control program 154 is an application program that controls various ministries. More specifically, the control program stores hard logic control for controlling the JPEG codec 50, an operator interface, disk access, and the like. The application program for constructing the control program can be made by any well-known tool such as Visual C ++, Borland C ++, and so, its detailed description is omitted here. The control program 154 is set or updated when the software is initially set or after the software is modified, such as a program error. Generally speaking, the control program 154 should not be set freely by the operator, and if it is freely changed, the monitoring system 100 may not be able to operate. Therefore, the control program 154 of this embodiment does not include a similar flag 144a. Flag. However, the present invention does not prevent the control program 154 from including flags. The system parameter 144 and the control program 154 are different from the present embodiment stored on the hard disk 83. The second memory 74 can store system parameters. 144 and / or control program 154. The scale and scale are applicable to the Chinese National Standard (CNS) A4 specification (21 × 297 mm) 1222627 A7 B7 V. Description of the invention (α) 66 Communication component 7 6 Connection system parameter 14 4 or control program 15 2 Therefore, for example, the operator can receive the existing message through the network supplier. Then, the setting and update sequence of the system parameter 144 will be described with reference to FIG. 1, FIG. 14, and FIG. 15. First, the operator will The M0 disk 81 storing the latest system parameter file 174 is inserted into the M0 drive 80. In this embodiment, for the sake of simplicity, the MO disk 81 stores ID data 172, the latest system parameter file 174, and the latest control program 176. However, in place of this, one or more of the MO disks are inserted into other MO disks. Dishes are also available. The MO drive 80 is for reproducing the information of the MO disk, or transmitting the data stored in the milk magnetic disk 81 through the PCI bus 62 to the CPU 70 through an external line. The CPU 70 temporarily stores the received data in the first memory 72 and performs extraction (verification) with the ID data 172 in accordance with the ID checking program 164 (step 1302). If the CPU 38 does not check the ID ', it intends to notify the operator via a display that is not shown in the drawing, and terminate the processing. Accordingly, it is possible to prevent a malicious program that invalidates the operation of the monitoring system 100 from the system parameter files of other monitoring systems and the current system parameters. In addition, the ID comparison can also be printed within the MO driver 80 by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. When the CPU 70 recognizes the ID, if it is judged in step 1302, the CPU 70 will then follow the control program 142. The CPU 70 judges whether the system parameter 144 can be updated, and judges whether the flag 144 & which allows at least one action environment to be updated is set, and judges by this (step 1304). When the operator sets the flag 144a and refuses to update all operating environments, since there are no parameters that can be updated, the CPU 70 uses the Chinese National Standard (CNS) A4 & 210X297 mm) ^ " 1222627 A7 B7 V. Inventor (67) indicator to inform the operator of its meaning and terminate the process. If the CPU 70 determines in step 1304 when the system parameter 53 can be updated, then the CPU 70 determines whether the system parameter 174 is included in the MO disk 81 (step 1306). Different from the present embodiment, if the system parameter 174 is not included in the rib disk 81, the CPU 70 notifies the operator of the meaning through a display (not shown) and terminates the processing. When the CPU 70 determines in step 1306 that the system parameter 174 exists, then, the CPU 70 determines whether the system parameter 174 is present in the hard disk 83 or the system parameter 174 is newer than the system parameter 144 (step 1308). The latter judgment is made by comparing the date when the system parameter 144 and the system parameter 174 were made. If the system parameter 144 exists, the system parameter 144 is made the same as or newer than the date when the system parameter 174 was made. It is not necessary to update the current system parameter 144. Therefore, the CPU 70 does not show the diagram The display notifies the operator of the meaning and terminates the processing. When the CPU 70 does not have the system parameter 144 on the hard disk 83, if judged in step 1308, the CPU 70 sets the system parameters by copying the system parameter 174 to the hard disk 83 (step 1310). When the CPU 70 determines that the system parameter 174 is updated than the system parameter 144 is updated, the CPU 70 updates the system parameter 144 by the system parameter 174 (step 1310). When the setting or updating is completed, the CPU 70 terminates the processing by notifying the operator of the meaning through a display or the like which is not shown in the drawing. Next, the setting and updating procedures of the control program 154 will be described with reference to FIGS. 1, 14, and 16. First, the operator inserts the MO disk 81 storing the latest control program 174 into the MO drive 80. MO drive 80 regenerative MO disk-70- This paper size applies Chinese National Standard (CNS) A4 specification (210X297 mm) (Please read the precautions on the back before filling out this page) Orders for consumption by the Intellectual Property Bureau of the Ministry of Economic Affairs Cooperative printed 1222627 A7 V. Description of the invention (u / 0〇 / news, or, by going online, the data stored in the MO disk 81 is transferred to the CPU 70 through the PCI bus. Finally, the CPU 70 performs the above Step 1302 Please read the note on the back of the page first and then page ii. CPU7 (If the judgment of the ID tolerance is performed in step 1302, the CPU 70 determines whether the MO disk 81 contains the control program ι76 or not (step 142). Unlike the present embodiment, if the MO disk 81 does not include the control program 176, the CPU 70 terminates the processing by notifying the operator of the meaning through a display or the like that is not shown in the drawing. The CPU can also control by controlling If the control program 154 is not included in the hard disk, the control program 142 does not exist. Therefore, step 1402 can also be used as the current program 152. Order the employee property bureau of the Ministry of Economic Affairs If the CPU 70 prints the CPU 70 in step 1402 when the control program 176 exists, it terminates the control program 142 and activates the current non-form 152 (step 1404). In place of this, the processing after step 1402 is performed in accordance with the current program 152 Step 1404 is omitted. Next, it is determined whether the control program 152 does not exist on the hard disk 83 or the control program 176 is newer than the control program 152 (step 1406). The latter judgment is made by comparing the control program 176 and the control program 152. In the case where the control program 152 exists and the manufacturing date of the control program 152 is the same as or newer than the manufacturing date of the control program 176, since it is not necessary to update the current control program 152, the CPU 70 updates it. The intention is to terminate the process by notifying the operator of a display or the like that is not shown in the drawing. If the CPU 70 determines in step 1406 whether the control program 152 exists in the hard disk 83, the CPU 70 sets the control by copying the control program 176 to the hard disk 83. Program (step 1408). When the CPU 70 determines that the control program 176 is newer than the control program 152, it is judged in step 1406 that C PU70 This paper size applies the Chinese National Standard (CNS) A4 specification (21〇 > < 297mm) -71-_ 1222627 A7 B7 V. Description of the invention (69) Update the control program 152 by the control program 176 (step (14〇8). When the setting or hard update is completed, the CPU 70 notifies the operator of the meaning by notifying the display or the like, and terminates the processing. In this way, the method according to the present invention enables the operator to set and update system parameters and control programs in a comprehensive and automatic manner. Therefore, fewer artificial error setting and updating processes can be performed in a shorter time than the conventional technology. Moreover, the operator does not need to actually obtain the M0 disk 81 storing the system parameters 174 and / or the control program 176. This information can be downloaded from communication circuits such as the Internet, commercial lines, and dedicated lines. Therefore, the present invention also includes a method for setting and updating system parameters and control programs using a general-purpose circuit. In this case, it can be understood that before the steps shown in FIG. 15 and FIG. 16, a step of accessing a certain address such as an identifier capable of downloading system parameters and a control program exists. In the case of using a communication circuit to set and update system parameters, step 1302 shown in FIG. 15 is performed by, for example, the operator inputting the operator 1]} and a pass ward, and step 1306 should be omitted. . In addition, it should be understood that steps 1308 and 1310 can also be implemented as a host computer connected to the marker side of the communication circuit. In addition, when a communication circuit is used to set and update system parameters, step 1404 shown in FIG. 16 is omitted, and it should be understood that steps 1406 and 1408 can also be implemented as a host computer connected to the marker side of the communication circuit. The preferred embodiments of the present invention have been described above. However, the present invention is not limited to these embodiments, and various modifications and changes can be made without departing from the gist of the invention. --------: ---- -7L- This paper size is applicable to China National Standard (CNS) A4 specification (210X297mm) (Please read the precautions on the back before filling this page) Order the wisdom of the Ministry of Economic Affairs Printed by the Consumer Affairs Cooperative of the Property Bureau 1222627 V. Description of the invention (70 [Effects of the invention] The above-exemplified continuous recording method and system and continuous recording system of the present invention can be constituted by a personal computer. Therefore, space saving can also be realized. According to the exemplary continuous recording method and system of the present invention, a buffer is used to store and record digital data to the storage medium while delaying the recording of the digital data to the storage medium period. The information is the same or more detailed than this. Therefore, it has a time margin due to the delay of the recording period. During this period, the information recorded on the storage medium can be selected and edited. Therefore, it can be recorded if necessary. Information not recorded in conventional memory media. If this system is suitable for use in a surveillance system, the reliability of the surveillance system can be improved. According to the example of the present invention, With the digital recording method and system, the amount of data recorded by the record carrier can be changed most appropriately and freely, so it has the effect of extending the recording time. Moreover, when the present invention is suitably used in a monitoring system, it is possible to record the knowledge The information in the time zone that can not be recorded in the memory medium can realize a more reliable monitoring system. The Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs has printed the same image compression / decompression system as illustrated in the present invention and The monitoring system can reproduce high-quality images with less information than conventional technologies. Also, the present invention can use the commercially available JPEG encoding #coder originally used locally, so it can prevent the development of new algorithms. The accompanying cost is the same. If the important part of the present invention is not operated and the same operation as the conventional device can be ensured, only the critical value needs to be set to a large value. Moreover, the present invention | Geo-regeneration produced by different threshold values is applicable to the Chinese National Su ^ 7 ^ grid (210X29 ^^ 1222627 V. Description of the invention (71 JPEG file or conventional noise high) The case of pEG slot.: Good is α set] PEG;! # Case processing n and the file data is written to the Λ solution mark m of the case, and the charm processing does not change the compressed data of the JPEG case at all. And it ’s known whether the decompressor does n’t recognize the information of the annotations in the recommended case, or does not use the reference of the decompression of the Wei contracted data series even if it knows it. Therefore, the JPEG audit case generated by the present invention Compared with the conventional jpEG codec, it can be decompressed without problems. In this case, the known codec is the information recorded in the annotation tool. Even if it is known, it will not be used for decompression. Compress its compressed data. Therefore, because the JpEG slot transferred to the conventional JPEG codec is decompressed without using the file data, it is returned. Although it has less noise than the conventional one, it contains low-pass Filters that blur the outline of an image. However, the situation that the contour of the image is blurred causes less discomfort to human eyes than noise. Therefore, the JPEG file generated according to the present invention is decompressed even with a conventional JPEG codec. Can provide high-quality images. In addition, since the information passing through the field of the low-pass filter is recorded in the annotation "remote device," using the annotation marking information can provide the high-fidelity and high-quality image by removing the blurring of the image contours described above. The image can be processed by an adaptive output digital filter including a filtering data analysis circuit and a peak filter. The detection circuit, low-pass filter, filtering data analysis circuit, and peak filter can be processed in a single digital order. Device to achieve, so, rather than the individual paper size applicable Chinese National Standards (CNS) μ specifications (210X 297 mm) (Please read the precautions on the back before filling this page) -Order _ 1222627 A7 —--- ---------- B7 1. Description of the invention (^ ϊ ~ — ^ ~ '-The conventional device constituted by the device' The invention can achieve the effect of reducing costs and saving space. According to this In the example of the invention, when the automatic setting and updating method of the system parameters and control programs in the same state are illustrated, the system parameters and control programs of the monitoring system are connected to the communication circuit by inserting the media stored in the monitoring system into the monitoring system. It can be set and updated automatically. Therefore, the operator does not need to repeat the same setting and update operations, and because it can avoid human errors, it can prevent the error. The control part of the monitoring system of the present invention can also automatically set and update system parameters and control systems, so it has the same effect. [Simplified description of the drawings] Figure 1 is an overview block diagram of the monitoring system of the present invention. Fig. 2 is a block diagram showing the essential parts of an exemplary image compression / decompression system that can be applied to the surveillance system shown in Fig. 1. Fig. 3 is a diagram showing the present invention shown in Fig. 2. The block diagram of the example of the adaptive input digital filter and wave filter of the image compression / decompression system is shown in Fig. 4. Fig. 4 shows a JPEG file processor of the image compression / decompression system of the present invention shown in Fig. 2. Figure 5 is a block diagram showing the structure of the example. Figure 5 is a block diagram showing the structure of an example of an adaptive input digital filter of the image compression / decompression system shown in Figure 2. Figure 6 is a model of Say The timetable of the relationship between the receiving order of the recording method of the present invention and the image data. Fig. 7 shows one of the control methods performed by the CPU shown in Fig. 1. The paper size is applicable to the Household Standard (CNS) A4 specification ( 21〇χ297mm) '-(Please read the precautions on the back before filling out this page) I Order · Printed by the Intellectual Property Bureau's Consumer Cooperatives

Example flow chart. Fig. 8 is a flowchart illustrating a recording method which can be implemented by the monitoring system shown in Fig. 1; FIG. 9 is a flowchart of the normal extended recording mode shown in FIG. 8. Fig. 10 is a flowchart of the detailed recording mode shown in Fig. 8. Fig. 11 is a time chart illustrating an example of the effect of the monitoring system shown in Fig. 1 as an effective recording method. Fig. 12 is an example of a control flow chart in which the monitoring system shown in Fig. 1 is feasible for continuous recording. Fig. 13 is another example of a control flow chart in which the monitoring system shown in Fig. 1 is feasible for continuous recording. FIG. 14 is a schematic block diagram illustrating a method for automatically setting and updating a system parameter and a control program of the monitoring system shown in FIG. 1. FIG. Fig. 15 is a flowchart showing an example of a method of setting and updating system parameters performed by a CPU of the monitoring system shown in Fig. 1; Fig. 16 is a flowchart showing an example of a method of setting and updating a control program performed by a CPU of the monitoring system shown in Fig. 1; [Comparison of the main symbols] 10 ...... Surveillance camera 12 ...... Warning device 14 ...... Selector 16 ...... Video decoder 18 ...... Video encoder 20 ······ Output Input filter This paper size applies the Chinese National Standard (CNS) M specification (210X297 mm) 1222627 A7 B7 V. Description of invention (74) Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economy 30 _ ·... Input filter 32 · ··· Derivative coefficient detection circuit 34 ·································· of low-pass filter 38 ····· input filter switch 40 ···· output 输入Filter 42 ... Filtering data analysis 44 ... Adding section 46 ... Peak filter 48 ... Output filter switch 50 " JPEG Codec 58 ..... Code frame buffer 60 " .... Control device 62 .. .... PCI bus 64 " .... Warning input interface 70 ·· ... CPU 72 .. .. · 1st memory 74... .. 2nd memory 75 ..... Switch circuit 76 ..... Communication element 78 · .... timing 80 ... MO drive 81 ... MO disk 82 .... hard drive Disk drive ____- 77- This paper size is applicable to Chinese National Standard (CNS) A4 specification (2IOX297 mm) (Please read the precautions on the back before filling this page) 1222627 A7 B7 V. Description of Invention (75) 83 …… Hard disk 84 ... screen 100 ... monitoring system 110 ... image compression / decompression system 120 ... JPEG file processor 122 ... marker analysis 130 …… External memory device 142 …… Central control program 152 …… Existing program 144… System parameter file 144a… Flag 154 …… Control program file 164 …… ID Check file 172 ...... ID data 174 ...... System parameters 176 ...... Control program (please read the precautions on the back before filling out this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs -78 This paper size applies to China National Standard (CNS) A4 (210X mm)

Claims (1)

1222627 Printed by the Consumers' Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs in February A8, I am revised / compared with; The recording method has the following steps: first step is to input data into the removable memory drive and record the data in the removable memory of the aforementioned removable memory drive; and the second step is based on the aforementioned removable memory Before the end of the body's memorable capacity, the input of the aforementioned data is switched from the aforementioned removable memory drive to the fixed disk device, and the aforementioned data is recorded on the fixed disk of the fixed disk device; the third step is to exchange After the aforementioned removable memory, the input of the aforementioned data to the aforementioned fixed disk device was originally maintained locally, and the data bus from the aforementioned fixed disk device to the aforementioned removable memory drive was ensured and recorded in the aforementioned The aforementioned data of the fixed magnetic disk is copied to the aforementioned removable memory in a time series; and step 4 is based on the aforementioned recording on the aforementioned fixed magnetic disk After the foregoing data is all copied to the removable memory, the input of the foregoing data is switched from the fixed disk device to the removable memory drive, and the input from the fixed disk device to the removable disk is blocked. The data transmission path of the memory drive is returned to the aforementioned first step and the processing is repeated. 2. —A kind of digital recording method, including: in the first recording mode, the operator stores the digital data in the buffer at the image receiving interval set below the first image recording interval to temporarily delay the digital data; the paper The standard is applicable to China Standard (CNS) A4 specification (210 ^ 297 male: g) 亀., 1 I— n * I-n ding r. N I— nn. 丨:-. · = 口. (Please first (Notes on the back of Mti, please fill out this page) 79 1222627 A8 B8 C8 D8 Six steps to store the second compressed data in the patent application of the Intellectual Property Bureau of the Ministry of Economic Affairs and the Consumer Consumption Cooperatives-M and store it in the buffer; and, (Please read the precautions on the back of 15 before filling in (This page) In the aforementioned second recording mode, the step of recording the aforementioned second compressed data stored in the aforementioned buffer on the aforementioned memory medium by the aforementioned buffer delay. 6. For the digital recording method described in item 5 of the scope of patent application, wherein the step of recording the second compressed data is a step of storing the digital data stored in the buffer after the switching time, with a shorter interval than the first image recording interval. The second video recording interval is recorded on the storage medium. 7. The digital recording method described in item 5 of the scope of the patent application, wherein the second recording mode further includes recording the digital data stored in the buffer before the switching time to the memory medium. 8. —A kind of digital recording system, which includes: a control device capable of switching between the first recording mode and the second recording mode; while being able to control by connecting the aforementioned control device, in the aforementioned first recording mode, the first A buffer for temporarily delaying the storage of digital data in the image recording interval below the image receiving interval; and, while being controllable by being connected to the aforementioned control device, in the aforementioned first recording mode 'will be stored in the aforementioned buffer and be The delayed digital data is recorded to the storage medium at the first video recording interval, and is stored in the buffer before the switching time from the first recording mode to the second recording mode in the second recording mode. The aforementioned digital data is recorded to a recording device of the aforementioned storage medium. 9. A digital recording system with: a control device capable of switching between the 1st recording mode and the 2nd recording mode; 81 This paper standard applies to a national standard (CNSM4 specification (210 X 297)) 1222627 The scope of patent applications includes == : =: Γ—Data progress data'_ Recording mode is the compression setting of the second compressed data that can be made with a larger amount of material; the data of the n body is controlled by the aforementioned control device, and the image below the recording interval is entered into the% The first image set by the author, and the first buffer is stored at intervals, and the buffer is temporarily delayed. &Amp; 苐 2 Compressed data is connected to the control device and can be controlled ~ The buffer and The delayed i-th and second compression ^ will be stored in the recording device of the carrier. The shell material is recorded in the record 10. == The digital record described in item 8 or 9 refers to the digital system as a monitoring system, It also has, Chagu-Zhongbei, to indicate the area to be monitored. The control device described above uses the "alert number of the companion" to switch to the second recording mode and the first recording mode. 11 A number Bit recording method, with 5 steps of the first and second recording mode; for digital data, including _ of the-fixed processing of the Ministry of Economic Affairs Intellectual Property Bureau employee consumer co-operative. Print the first compressed data, In the aforementioned second recording mode = the step of compressing data with a smaller amount of data in the first compressed data; and, «type records the aforementioned compressed data in the record =: Γ The second recording mode records the aforementioned compressed data in the Steps of record carrier 12. A digital recording system having:, 8888 ABCD The Intellectual Property Bureau of the Ministry of Economic Affairs, the Consumers' Cooperatives, and the scope of patent application for patent application can set the first and second recording mode control. At the same time it can be controlled by connecting the control device: the digital data is included in compression-㈣ Processing, it is possible to create the first compressed data in the aforementioned first recording mode and to create the second compressed data in a smaller amount of data than the first compressed data in the aforementioned # 2 々 牟 播 斗, ^, ° Compression device; and… can be controlled by connecting the L-type device just described, and can record the first-mentioned Ifg data on the record carrier in the aforementioned recording mode, and can record the aforementioned second in the aforementioned second recording mode. The compressed data is recorded in a recording device of a record carrier. 13. The digital recording system according to item 12 of the scope of patent application, wherein the aforementioned digits. The recorded system further has a detection circuit for detecting a residual amount of recordable capacity of the aforementioned record carrier. The control device is connected to the aforementioned detection unit and accepts the detection result of the aforementioned detection unit, in accordance with the aforementioned residual amount of the aforementioned record carrier. The first recording mode is switched to the second recording mode. The T-shirt image compression I® / decompression system has: a detection circuit for dividing the first image information into fields of a certain size and detecting the maximum value of the rate of change of the image per unit distance in each field; low-pass filtering 'It performs a certain filtering process on the aforementioned first image information in the aforementioned field having a maximum value that is greater than a certain threshold value; and, a JPEG codec has a maximum value that is smaller than the aforementioned threshold value. The first image information in the aforementioned field and the second image information composed of the aforementioned first image information through the low-pass filter are compressed by DCt calculation; and further have: -install -------- Order i (please read the phonetic notes on the back before filling this page) Flat 0 ^ Public 97 X ο ⑵ Gage 2 1222627 Printed by A6, B8, C8, D8, Intellectual Property Bureau, Ministry of Economic Affairs, Consumer Consumption Cooperatives, and file analysis circuit , Is used to receive the identification information of the aforementioned field with the aforementioned maximum value above the threshold value, the difference information between the aforementioned maximum value and the aforementioned threshold value, and the aforementioned threshold value information. Filter data to analyze it; and, a peak filter is used to accept the aforementioned image information generated by the aforementioned JPEG codec, and according to the analysis result of the file data analysis circuit, the maximum Prior to the above-mentioned fields, certain slot cases are processed. 15. The image compression / decompression system described in item 14 of the scope of the patent application, wherein the aforementioned detection circuit, the aforementioned low-pass wave filter, the aforementioned slot data analysis circuit, and the aforementioned peak filter are treated as a single digital processor It has a unified structure. 16. A surveillance system comprising: a surveillance camera; a video decoder connected to the surveillance system; an image compression / decompression system connected to the video decoder; a video encoder connected to the image compression / decompression system; and, a connection A monitoring system composed of a display device of the video encoder, wherein the image compression / decompression system includes: an input filter connected to the video decoder; a JPEG codec connected to the input filter; and, connected to the foregoing The input filter and the JPEG filter processor of the aforementioned JPEG codec, the aforementioned input filters and wave filters have: (Please read the precautions on the back of t5 before filling this page) ----- Γ I. This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 gong) Μ 1222627 Sixth, the Intellectual Property Bureau of the Ministry of Economic Affairs, the employee consumer cooperative printed M A8 B8 C8 D8 1 a detection circuit that detects the maximum value of the rate of change of the image at a unit distance of each area in a certain size arm area; and The above-mentioned first image information in the above-mentioned area with the maximum value or greater than the threshold value, and a low-pass filter that performs a certain filtering process. The JPEG codec is the aforementioned area with the aforementioned maximum value smaller than the threshold value. The aforementioned first image information and the aforementioned second image information formed by the aforementioned first image information through a low-pass filter are compressed by DCT calculation, and the aforementioned JPEG filter processor will include the aforementioned maximum having a threshold value or more The identification information of the aforementioned field of the value; the difference information between the aforementioned maximum value and the aforementioned threshold value; and, the filter data of the aforementioned threshold value information is input into an annotation marker to generate a JPEG filter together with the compressed data output by the aforementioned JPEG codec . 17. —A method for automatically setting and updating system parameters of a monitoring system, including: determining whether the first system parameter currently used by the monitoring system exists, and whether the second system parameter to be introduced into the monitoring system is higher than the first one Steps for updating system parameters; once it is determined that the first system parameter does not exist in the aforementioned monitoring system, a step of automatically setting the second system parameter in the aforementioned monitoring system by copying the aforementioned second system parameter; judged in the aforementioned monitoring system A step of automatically updating the first system parameter to the second system parameter when the first system parameter is present and the second system parameter is updated than the first system parameter; and CNS) A4 specification (210 χ 297 cm) (please fill in the notes on the back of Mts before filling in this page) r · nnn —si In I ϋ M ^ t —1 t— «nn If HI n. Mountain 2627 A8 B8 C8 1222627, Shenyan Patent Scope Before the judgment step described above, in order to download the aforementioned second system parameter through communication data, a fixed address access step is performed. 22 · A method for automatically setting and updating a control program of a monitoring system, including: · Is the ith control program currently used in the monitoring system, and determining whether it will lead to the second control program of the monitoring system Steps to update the parameters of the first system; ~ If the first control program does not exist in the monitoring system, the borrower will copy the second control system and automatically set the 2 control program in the monitoring system; It is determined that the aforementioned monitoring system exists the aforementioned! When the control program is updated and the second control program is newer than the first control program, the first control program is automatically updated! A step of updating the second control program by the control private type; and (i) determining that the i-th control program exists in the monitoring system and is the same as the second control program or has a new creation, and maintains the first control Procedure steps. The method of automatically setting and updating the control program of the monitoring system described in item 22 of the 23 patent application range includes a step of confirming the m data of the second control program that has been entered before the aforementioned determination step. Printed by the Employees ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 24. The automatic setting and updating method of the control program of the monitoring system as described in item 22 of the scope of application for patents, which further includes: Then, the second control system is downloaded and an address access step of 1 is performed. 25 · —A surveillance system with a surveillance camera, which is used to photograph the body image and output electrical contrast (2) 〇χ 297 public issue) This paper standard is applicable to Chinese standards (CNSM 彳 1222627 A8 B8 C8 D8 Signals for patent application; and the conversion department, which is used to convert the numerical comparison letter number into a digital signal, printed by the employee ’s consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, and a control device, which is used to record and edit the aforementioned digital Signal, the aforementioned control device has a system parameter, which is used to set the aforementioned pure operating environment; Lu Jiyi Department, which is used to store the control programs that control the various sections of the aforementioned surveillance system; and It is used to control the automatic setting and update of the aforementioned system parameters and the aforementioned control program. 88 This paper size is applicable to the China Standard ® Family Standard (CNS) A4 Regulation (210 X 297 cm)