KR20080073971A - Image recording apparatus having summer time function and method thereof - Google Patents

Abstract

An image recording apparatus having a summer time function and a record reproduction method thereof are provided to determine whether a summer time starts or ends and vary a time when image data is recorded and a display time when the image data is displayed to a user during the summer time, thereby recording the image data in a recording medium without a loss of data prestored in the recording medium when the summer time ends. An image recording apparatus(100) includes a first interface unit(110), a signal processing unit(120), a second interface unit(130), a codec(140), an operation unit(150), a storage unit(160), and a control unit(170). The first interface unit receives an electric signal corresponding to a subject photographed by a monitoring camera(10). The signal processing unit performs the signal processing of noise cancellation and detail improvement for the electric signal inputted through the first interface unit to generate viewable image data. The codec compresses and outputs the image data of a predetermined format outputted by the signal processing unit into an image format according to preset image standards. The operation unit provides an interface between the image recording apparatus and a user, and outputs the start day/time and end day/time of a summer time received from the user to the control unit. The storage unit stores various programs necessary for driving the image recording apparatus, stores a preset summer time reference start day/time and end day/time, and stores the image data outputted from the control unit. The control unit sets and outputs a display time to be faster than a system time as much as an hour if the summer time starts and sets a recording time to be the same as the system time, and records the image data in the storage unit later than the display time as much as an hour.

Description

Image recording apparatus having summer time function and method thereof

1 is a block diagram of an image recording apparatus according to an embodiment of the present invention;

2 is a flowchart provided to explain an operating method of an image recording apparatus according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

100: video recording device 110: first interface unit

120: signal processing unit 130: second interface unit

140: codec 150: control panel

160: storage unit 170: control unit

The present invention relates to an image recording apparatus having a daylight saving time function and a recording / reproducing method thereof. More particularly, the present invention relates to a video recording apparatus which supports a time when image data is recorded and a display time displayed by a user during a period in which summer time is applied. A recording apparatus and a recording / reproducing method thereof.

The video recording device records the captured video or the video signal received from the outside as a digital video signal on a storage medium such as a digital video disc or a hard disk (HDD). Play the video signal. Examples of such image recording apparatuses include a digital video recorder (DVR), a camcorder (Camcorder), a surveillance camera, a digital TV (DTV), a set-top box (STB), and the like.

When the VCR (Video Cassette Recorder) device used for recording surveillance cameras repeats the recording operation many times, there are many inconveniences such as the need to replace the video tape frequently due to poor image quality. To improve this point, a digital video recorder (DVR) device using a hard disk drive (HDD) or a digital video disk (DVD) instead of a video tape has been developed.

The DVR device is a kind of video recording device, and uses a digital storage medium such as an HDD and a DVD, so that it is easy to play back or retrieve the stored video signal. The DVR device is also convenient for editing stored video data and transmitting video signals.

The DVR apparatus converts the analog video signal input from the surveillance camera into a digital video signal, and compresses the digital video signal by a compression method such as MPEG (Moving Picture Experts Group) 2, MPEG4, H.264 / AVC method. It is possible to restore or record for a long time by restoring.

However, in the conventional DVR device, the time for recording the video signal on the storage medium and the display time for the user during the daylight saving time are adjusted by one hour. At this time, when the summer time starts, as the recording time is adjusted by one hour, the data recorded on the storage medium and the data recorded at the end of the summer time are overlapped with each other for one hour before the end of the summer time. The recorded data for one hour of was deleted.

Accordingly, an object of the present invention is to manage the recording time and the display time differently during the period in which the daylight saving time is applied so that data can be continuously recorded on the storage medium without erasing the data recorded one hour before the daylight saving time ends. An image recording apparatus and a method of recording and reproducing the same are provided.

The image recording apparatus according to the present invention for achieving the above object is to determine whether the daylight saving time start and end, and based on the determination result the recording time which is the time when the image data is recorded and the display time which is the current time displayed to the user A controller configured to provide different settings; And a storage unit in which the image data is recorded and stored at the recording time.

Preferably, if it is determined that summer time has started, the controller sets the recording time equal to the system time, sets the display time one hour earlier than the system time, and outputs it. The time and display time can be set to the same time as the system time.

Preferably, the apparatus may further include an operation unit for receiving an image reproduction command from the user for reproducing the image data. At this time, if the video playback command is received after the start of the summer time, the controller may play back the video data recorded at a recording time one hour later than the display time.

Also, preferably, the storage unit may store a preset summer time reference start date and time. The controller compares the summer time reference start date and system time with each other. If the summer time reference start date and the system time coincide with each other, the controller determines that summer time has started, and compares the summer time reference end date and system time with the summer time value. When the time reference end date and the system time coincide with each other, it may be determined that the summer time has ended.

On the other hand, the recording and reproducing method of the present invention comprises the steps of determining whether or not to start and end the summer time, and differently set and provide a recording time of the recording time and the current time is displayed to the user based on the determination result; And recording the image data at the recording time.

Hereinafter, with reference to the drawings will be described the present invention in more detail.

1 is a block diagram of an image recording apparatus according to an embodiment of the present invention. Referring to FIG. 1, the video recording apparatus includes a first interface unit 110, a signal processor 120, a second interface unit 130, a codec 140, an operation unit 150, a storage unit 160, And a controller 170.

The first interface 110 receives an electrical signal corresponding to a photographed subject from the surveillance camera 10 connected to the image recording apparatus 100 by wire or wirelessly. That is, the surveillance camera 10 converts the optical signal received from the external subject into an electrical signal and transmits the electrical signal to the first interface 110.

The signal processor 120 generates image data that can be viewed by performing signal processing such as noise reduction and detail improvement on the electrical signal input through the first interface unit 110. The signal processor 120 outputs the generated image data to the monitor 20 through the second interface 130. Here, the monitor 20 is an external device connected to the video recording device 100 by wire or wirelessly.

The codec 140 compresses and outputs image data of a predetermined format output from the signal processor 120 into an image format according to a preset image standard. In this case, the codec 140 may expand the compressed video data again if necessary.

The operation unit 150 provides an interface between the image recording apparatus 100 and the user, and outputs the summer time start date and end date and time received from the user to the controller 170 to be described later. In addition, the operation unit 150 receives a command for reproducing image data recorded in the storage unit 160 to be described later.

The storage unit 160 stores various programs necessary for driving the image recording apparatus 100, and stores a predetermined summer time reference start date and a reference end date and time. In addition, the storage 160 stores image data output from the controller 170 to be described later.

When the summer time start date and the end date and time are input from the operation unit 150, the control unit 170 changes the preset summer time reference start date and the end date and time to the input summer time start date and the end date and time. Store in

In addition, the controller 170 monitors the system time every predetermined time, compares the system time with the summer time reference start date and the reference end date with reference to the storage 160, and compares the system time with the summer time reference start date. Judgment is made between the hour and the end date.

Specifically, if it is determined by the controller 170 that the system time and the summer time reference start date coincide, the controller 170 sets the display time one hour earlier than the system time and sets the set display time to the second interface unit 130. Output to the monitor 20 through). At this time, the recording time which is the time for recording the image data output from the codec 140 to the storage unit 160 is the same as the system time without modification.

That is, when summer time starts, the controller 170 outputs the display time by one hour earlier than the system time and outputs the recording time by one hour slower than the display time by setting the recording time equal to the system time. Record at 160. Here, the system time is the time information of the image recording apparatus 100 provided by using a Real Time Controller (RTC) or a crystal (X-tal) provided in the image recording apparatus 100. Will be omitted.

At this time, when the controller 170 receives an image playback command from the operation unit 150, that is, when the video playback command is input during the summer time application period in which the system time and the summer time reference start date coincide with each other, the controller 170 displays. The image data recorded at the recording time one hour later than the time is read from the storage unit 160 and reproduced by the monitor 20.

In addition, if it is determined that the system time and the summer time reference end date coincide with each other, the controller 170 delays the display time by one hour and sets the same as the system time, and sets the set display time as the second interface unit. Output to the monitor 20 through (130). Here, the display time is the current time provided to the user through the monitor 20 when daylight saving time is applied or summer time is released.

On the other hand, if it is determined that the system time and the summer time reference start date and time do not match, that is, during the period in which daylight saving time is not applied, the control unit 170 sets the system time and the display time equally. The set display time is output to the monitor 20. If it is determined that the system time and the summer time reference end date do not match, that is, during the summer time application period, the controller 170 sets the display time one hour earlier than the system time, and monitors the set display time. ) At this time, the recording time is set equal to the system time.

2 is a flowchart provided to explain an operating method of an image recording apparatus according to an embodiment of the present invention.

Referring to FIG. 2, first, the controller 170 determines whether summer time starts (S210).

In detail, the controller 170 monitors the system time at a predetermined predetermined time period, and when the system time coincides with the preset summer time reference start date and time, the controller 170 determines that the summer time is started. Here, the system time is the time information of the image recording apparatus 100 provided by using a Real Time Controller (RTC) or a crystal (X-tal) provided in the image recording apparatus 100. Will be omitted.

Subsequently, when it is determined that summer time has started (S210: Y), the controller 170 changes and sets the display time to an hour earlier than the system time (S220). That is, for example, when the summer time starts at 7:00 March 1, when the system time reaches 7:00 March 1, the controller 170 determines that the summer time has started, and displays the display time in the system. Set the time to one hour earlier than March 1 at 8:00 and print out the set time.

At this time, when the summer time is started, the controller 170 records the image data by setting the recording time, which is the time at which the image data is recorded, to the same time as the system time without changing. Here, the recording time does not indicate that recording time starts one hour later than the time when the recording data is inputted, but that the time data for distinguishing recorded image data is one hour later than the display time. will be.

When the video data playback command is input from the user (S240: Y), the controller 170 plays back the video data recorded at the recording time one hour later than the display time (S250).

That is, when a playback command for reproducing the recorded video data is input from the user when the display time is 9:00, the controller 170 records at 08:00 one hour later than the display time, that is, the recording time is 08. The video data of: 00 is read from the storage unit 160 and reproduced by the monitor 20.

Next, the controller 170 determines whether the summer time ends (S260).

Specifically, the controller 170 monitors the system time at a predetermined predetermined time period, and when the system time and the preset summer time reference end date coincide with each other, the controller 170 determines that the summer time is over.

When it is determined that the summer time has ended (S260: Y), the control unit 170 delays the display time by one hour and outputs the same time as the system time.

Specifically, for example, when the daylight saving time ends at 18:00 on August 31, the controller 170 determines that the summer time is over when the system time reaches 18:00 on August 31, and displays the display time. Is set to 18:00 on August 31, the same time as the system time, and the set time is output. That is, the controller 170 outputs the display time 18:00 before the summer time ends, and outputs 18:00 again as the display time after the summer time ends. At this time, the control unit 170 only changes the display time, and the recording time is the same as the system time without changing at the end of the summer time.

On the other hand, in the video recording apparatus and the recording and reproducing method according to the present invention, the embodiment has been described by limiting the external device connected to the video recording device to a monitor, but the present invention is not limited thereto. And devices capable of reproducing image data recorded in the recording apparatus.

As described above, according to the present invention, it is determined whether the summer time starts and ends, and at the end of the summer time by supporting different times when image data is recorded and display time displayed to the user during the period in which summer time is applied. Image data may be recorded on the storage medium without losing data previously stored in the storage medium.

In addition, although the preferred embodiment of the present invention has been shown and described above, the present invention is not limited to the specific embodiments described above, but the technical field to which the invention belongs without departing from the spirit of the invention claimed in the claims. Of course, various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or the prospect of the present invention.

Claims (5)

A controller configured to determine whether the summer time starts and ends, and differently set a recording time, which is a time at which image data is recorded, and a display time, which is a current time displayed to a user, based on the determination result; And And a storage unit recording and storing the image data at the recording time. The method of claim 1, The control unit, If it is determined that the summer time has started, the recording time is set equal to the system time, and the display time is set one hour earlier than the system time and outputted. And recording the time and the display time to the same time as the system time. The method of claim 1, An operation unit which receives an image reproduction command for reproducing the image data from a user; The control unit, And when the video playback command is received after the daylight saving time starts, playing back the video data recorded at a recording time one hour later than the display time. The storage unit, The preset summer time standard start date and standard end date and time are stored in advance. The control unit, By comparing the summer time reference start date and system time, and when the summer time reference start date and the system time coincide, it is determined that the summer time is started, and the summer time reference end date and the system time are compared. And when the summer time reference end date and time coincide with each other, determining that the summer time has ended. Determining whether the summer time starts and ends, and differently setting a recording time at which image data is recorded and a display time which is a current time displayed to the user based on the determination result; And And recording the video data in the recording time.

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