KR100934613B1 - Digital video recorder - Google Patents

Abstract

PURPOSE: A digital video recorder is provided to assign an intrinsic number to an input/output panel of serial communication mode, thereby identifying a kind of the input/output panel. CONSTITUTION: If an input/output panel is connected to a main board, the main board of a DVR(Digital Video Recorder) identifies a kind of the input/output panel through the intrinsic number of the input/output panel. A search unit(410) of the main board searches whether information corresponding to the intrinsic number of the input/output panel exists. An identifying unit(420) identifies a kind of the input/output panel through the searched information. A storage unit(430) stores the information about the input/output panel. A processing unit(440) processes data received from the identified input/output panel.

Description

ＤＶＲ {Digital video recorder}

The present invention relates to a DVR and an input / output panel to which a unique number is assigned, and enables the operation of input / output panels of various models by allowing the main board to recognize various types of input / output panels through an input / output panel having a unique number of a serial communication method. To an input / output panel to which a DVR and a unique number are assigned.

Digital Video Recorder (DVR) has been developed to solve the problems of Video Cassette Recorder (VCR), which had many problems such as video quality dropping and video tape replacement due to the method of repeating the recording several times. These DVRs use hard disks or digital video disks instead of video tapes, and thus are not only easy to play or search stored screens, but are also stored as digital video signals, which are convenient for editing and transmitting images. In addition, the DVR converts the video data input from the surveillance camera, that is, the analog video signal into a digital video signal, and compresses and restores the video using MPEG (Moving Picture Experts Group), the international video compression standard. It provides a high resolution recording system. On the other hand, the DVR includes various selection menu functions such as motion detection, connection recording, auto pan / tilt / zoom / control, image magnification and editing. In addition, the DVR can monitor remotely in real time, search, backup and camera control. In recent years, the use of DVRs in homes is increasing.

1 illustrates an input / output panel of a conventional DVR.

The DVR set main body may be composed of a front part, a main body, and a rear part. The main body includes a storage device (hard disk) and a substrate. In the front part, buttons, a remote control receiver, and an LED are located, and in the rear part, an image input, an image output, an RS-232, and a LAN port are located. In addition, the input / output panel located at the front of the DVR is connected to the main body through a connection cable (FFC cable, flat cable).

As shown in FIG. 1B, when the input / output panel 10a of FIG. 1A is connected to the input / output panel 10b connected to the main body 20, the main body 20 is connected. ) Cannot recognize it. Therefore, the input and output panel 10a of this model is inconvenient and additional cost is incurred that the main body and the DVR set compatible with it. In other words, even if the input and output panel to perform the same function is different (type) and the configuration of the main body connected to be changed accordingly, there is a variety of models and standards between manufacturers, it is difficult to compatible between models.

2 illustrates an arrangement structure of input / output ports configured in a conventional input / output panel.

Next, as shown in FIG. 2, the input / output ports (buttons) configured in the conventional input / output panel are configured in a matrix manner to perform parallel communication. For example, in FIG. 2, it is assumed that input / output ports are in an OFF state and a clock signal is periodically input to C0 to C3. The clock signal means that a periodic signal is input to C0 to C3 under the assumption that a power cord is connected.

At this time, when the SW0 switch is pressed in the state where the entire C0 line is High (1), the L0 side becomes High (1), and it can be known whether the SW0 switch is operated. That is, it is scanned from L0 to L3, and it can be seen that the switch No. 0 (SW37) is pressed. When the switch is pressed by the user, a corresponding signal is output to L0 to L3, and a predetermined processor that checks the changed signal with a microcomputer or a signal checks the corresponding values. As described above, when either switch is pressed, it is possible to know which matrix of switches is pressed.

This prior art has to redo the number, arrangement, and arrangement of input / output devices when adding ports or buttons of an input / output panel. That is, in the 4x4 matrix method shown in FIG. 1, when a switch is to be added in the middle, additional lines and rows must be added, which means that the input / output panel needs to be redesigned, not just the wiring. . In addition, the number of pins to be transmitted is added according to the number of input and output, thereby increasing the number of pins of the connection cable.

In addition, since the main body does not recognize the input and output panel of this model, it is necessary to rebuild the input and output panel compatible with the DVR set according to the model.

Therefore, there is a need to design an input / output panel so that the input / output panel can operate in conjunction with the main body regardless of various input / output panel models and expand more efficiently when the input / output port is expanded.

The present invention relates to a DVR and an input / output panel to which a unique number is assigned, and enables the operation of input / output panels of various models by allowing the main board to recognize various types of input / output panels through an input / output panel having a unique number of a serial communication method. It is an object of the present invention to provide a DVR and an input / output panel to which a unique number is assigned.

In addition, an object of the present invention is to provide an input / output panel having a connection cable composed of a certain number of pins regardless of the type of input / output panel, thereby facilitating cost reduction and inventory management due to the unification of the items of the connection cable. do.

In addition, an object of the present invention is to facilitate easy expansion of the input and output by adding a chip of the input and output panel when adding the number of input and output of the DVR.

In order to achieve the above object, the DVR according to an embodiment of the present invention comprises an input / output panel storing a unique number; And a digital video recorder (DVR) including a main board that recognizes the type of the input / output panel through a unique number of the input / output panel when the input / output panel is connected to the main board. The input / output panel includes a plurality of switches of the DVR connected to one chip. It is characterized in that the plurality of chips are connected to each other by a single line to perform serial communication.

Preferably, the input / output panel may include a connection cable configured with a predetermined number of pins regardless of the type of the input / output panel.

Preferably, the main board includes a search unit for searching whether information corresponding to a unique number of the input / output panel exists, a recognition unit for recognizing the type of the input / output panel based on the searched information, and the input / output unit. A storage unit for storing information about the panel; And a processor configured to perform data processing on the data received from the recognized input / output panel.

In addition, according to the present invention, when any one of the input and output ports connected to the chip is operated, signal values and other switch values for the corresponding input and output ports are sequentially output as serial signals, and any input and output by the Micom of the main board is performed. It is characterized by whether the port is activated.

An input / output panel according to an embodiment of the present invention includes a storage unit for storing a unique number and a communication unit for transmitting information on at least one of the unique number and a signal value according to a switch operation of the DVR to a main board of the DVR through a connection cable; And an input / output panel including a connection cable connected to the main body of the DVR, wherein the input / output panel is a type in which a plurality of input / output ports of the DVR are connected to one chip and a plurality of chips are connected to each other to perform serial communication. It features.

Preferably, the input / output panel may include a connection cable configured with a predetermined number of pins regardless of the type of the input / output panel.

In addition, the present invention is characterized in that the signal value and other switch values for the switch is sequentially output as a serial signal when any one of the switches connected to the chip is operated.

According to the DVR of the present invention and the input / output panel to which a unique number is assigned, the following advantages are provided.

First, by assigning a unique number to the I / O panel of the serial communication method through the main board recognizes the type of the I / O panel, there is an advantage to enable the operation of the I / O panels of various models.

Second, by providing an input and output panel having a connection cable consisting of a certain number of pins, regardless of the type of input and output panel, there is an advantage to facilitate cost reduction and inventory management due to the unification of the items of the connection cable.

Third, there is an advantage that can be easily expanded by adding a chip of the input / output panel when adding the number of switches and input / output of the DVR.

Advantages and features of the present invention, and methods for achieving them will be apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but can be implemented in various forms, and only the embodiments are to make the disclosure of the present invention complete, and the general knowledge in the technical field to which the present invention belongs. It is provided to fully convey the scope of the invention to those skilled in the art, and the present invention is defined only by the scope of the claims. Like reference numerals refer to like elements throughout.

3 illustrates an arrangement structure of chips configured in an input / output panel according to an embodiment of the present invention.

First, in the present invention, the input / output panel communicates with the main board when the connection cable and the connection cable composed of a certain number of pins are connected to the main board of the DVR, and at least one of a unique number and a signal value according to the operation of the switch of the DVR. It includes a communication unit (not shown) for transmitting information about one. The unique number of the input / output panel is stored in a storage unit (not shown) on the input / output panel, and when connected to the main body, is transmitted to the main body through the communication unit. In addition, the input / output panel is manufactured in a form in which a plurality of switches of the DVR are connected to one chip and a plurality of the chips are connected to each other by one line to perform serial communication. The input / output panel may be implemented as a front panel of the DVR front panel and a rear board of the rear panel. The storage unit and the communication unit are configured and operated in the input / output panel in the form of the chip. When the input / output panel is connected to the main body through a connection cable, the unique number of the input / output panel is transmitted to the main body.

In more detail, a unique number (ID) is stored in the input / output panel of the present invention connected to the DVR main body. The main body recognizes the type of the input / output panel through the unique number of the input / output panel connected to the main body. Information on the input / output panel corresponding to the unique number of the input / output panel is stored in a predetermined storage area of the main body. The unique number may include a bit value in which a model, a manufacturing date, and the like of the input / output panel are combined, and the present invention is not limited thereto.

Accordingly, the input / output panels of various models are recognized and operated in connection with the main body, without limitation of the connection with the main body according to the model of the input / output panel. In addition, in the present invention, the number of pins of the connection cable of the input / output panel is the same, and preferably, a FFC (Flexible Flat Cable) cable may be used. Therefore, the unification of the connecting cable items according to the number of pins facilitates cost reduction and inventory management. The connection cable of the input / output panel as described above is connected to the main body as shown in FIG. 1 (b) to perform data communication between the input / output panel and the main body.

Meanwhile, the chips of the input / output panel are arranged as shown in FIG. 3 (a), and a serial communication method is used. That is, since the data (signal) is transmitted in a serial communication method, it is possible to operate even when connected to various main bodies, to reduce the transmission line, and to reduce the possibility of communication error compared to the conventional parallel communication. It will be described in more detail below.

FIG. 3 (a) shows an arrangement structure of chips of the input / output panel of the present invention, and FIG. 3 (b) shows an enlarged arrangement of some of the chips 302 and 304 and one chip. A plurality of switches are connected each time.

First, in FIG. 3A, eight switches are preferably connected to each chip divided into four groups. And as you add more chips, you can add more switches. Therefore, when adding a switch, only a chip needs to be added. Therefore, when increasing the number of conventional switches, the problem of redesigning the input / output panel can be solved. Here, the chip and the chip are connected in one line, so that the switch (button) can be conveniently extended.

On the other hand, while the clock signal is periodically input from the left side, the value of the switch connected to the chip is sequentially transmitted to the right side, and the right side (microcom or predetermined processor) checks which button is operated through this.

Here, the input clock signal means that a periodic signal is input under the assumption that the power cord is connected. That is, when one of the switches connected to the plurality of chips operates while the clock signal is periodically input from the left 32, the signal value for the corresponding switch is output to the right 34 in a serial manner, and accordingly, which switch operates. It is recognized (detected) by the Micom of the main body or a predetermined processor. For example, when one switch of a predetermined chip 302 is pressed, the bit value according to the corresponding switch is changed to the value 1, and the switches of the other chips are at the value 0, so that the values are in a serial manner, that is, "10000. ... "Are sequentially transmitted to the right side 34, and to the main body via a connection cable. Then, the microcomputer of the main body reads the corresponding values to identify which switch is pressed.

As described above, since each chip converts and outputs a parallel signal into a serial signal and performs such an operation on eight switches, eight switches are connected to one chip. However, the number of switches connected to each one chip is not limited to any particular number and may be configured by connecting the chips with respect to the number of various numbers of switches. In addition, the above-described principle may be applied and configured in the rear part (rear board) in the same manner.

4 is a block diagram of an input / output panel recognition apparatus according to an embodiment of the present invention.

 The I / O panel (for example, the front panel or the rear board) connected to the main body (main board) of the DVR has a unique number stored in the device (eg, assigned), and the input / output panel recognition device 400 included in the main body includes the corresponding input / output panel. Through the unique number of the I / O panel type is recognized. The input / output panel recognition device 400 includes a search unit 410, a recognition unit 420, a storage unit 430, and a processing unit 440, and includes a central processing unit (CPU) or a predetermined chip. It can be implemented in the body in the form.

First, when the input / output panel is connected to the main body, the search unit 410 receives the unique number (ID) of the input / output panel and searches the storage unit 430 for information corresponding to the unique number.

The recognition unit 420 recognizes (identifies) the type of the input / output panel through the retrieved information.

The storage unit 430 stores information on the input / output panel. The input / output panel can be manufactured in various models, and a unique number is stored. The information includes information on this unique number, which may be stored in the form of a list in a database. In addition, the information on the unique number can be continuously updated through a predetermined software program. In addition, information such as a model name, a manufacturing date, a manufacturing number, and a manufacturer according to the type of the input / output panel as well as the unique number may be stored. The unique number may be in the form of a bit in which the information of the input / output panel is combined, and may be the unique information given when the input / output panel is manufactured. The storage unit 430 may be a nonvolatile memory device such as a cache, a read only memory (ROM), a programmable ROM (PROM), an erasable programmable ROM (EPROM), an electrically erasable programmable ROM (EEPROM), and a flash memory. At least one of a volatile memory device such as a random access memory (RAM) or a storage medium such as a hard disk drive (HDD) may be implemented, but is not limited thereto.

The processor 440 performs data processing on data received from the input / output panel when the unique number corresponding to the input / output panel is found through the searcher 410. If not found, it is recognized as an incompatible input / output panel and data processing is not performed. In this case, the user may update the information on the input / output panel in the storage unit 430 so that the input / output panel recognition device 400 may perform recognition and data processing on the input / output panel again.

Each component illustrated in FIG. 4 may be configured as a kind of 'module'. The term 'module' refers to a hardware component such as software or a field programmable gate array (FPGA) or an application specific integrated circuit (ASIC), and a module plays a role. However, modules are not meant to be limited to software or hardware. The module may be configured to be in an addressable storage medium and may be configured to execute one or more processors. The functionality provided by the components and modules may be combined into a smaller number of components and modules or further separated into additional components and modules.

Although embodiments of the present invention have been described above with reference to the accompanying drawings, those skilled in the art to which the present invention pertains may implement the present invention in other specific forms without changing the technical spirit or essential features thereof. I can understand that. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive.

1 is an input / output panel of a conventional DVR.

2 is a layout structure of input / output ports configured in a conventional input / output panel.

3 is a layout structure of chips configured in an input / output panel according to an embodiment of the present invention.

4 is a block diagram of an input / output panel recognition apparatus according to an embodiment of the present invention.

<Explanation of symbols on main parts of the drawings>

410: search unit 420: recognition unit

430: storage unit 440: processing unit

Claims (7)

delete delete An input / output panel storing a unique number; And When the input / output panel is connected to the main board, a DVR (Digital Video Recorder) including the main board that recognizes the type of the input / output panel through a unique number of the input / output panel, wherein the input / output panel includes a plurality of input / output ports of the DVR. The plurality of chips are connected to one chip and connected in a single line to perform serial communication. The input / output panel includes a connection cable having a predetermined number of pins, regardless of the type of the input / output panel. The main board stores a search unit for searching whether information corresponding to a unique number of the input / output panel exists, a recognition unit for recognizing the type of the input / output panel through the searched information, and stores information on the input / output panel. A storage unit; And a processing unit which performs data processing on the data received from the recognized input / output panel. The method of claim 3, wherein When any one of the input and output ports connected to the chip is operated, signal values and other input and output port values for the corresponding input and output ports are sequentially output as serial signals, and which input and output ports are operated by the micom of the main board. DVR is detected. The method of claim 3, wherein the input and output panel And a communication unit for transmitting information on at least one of the signal number according to the unique number and the input / output port operation to the main board through a connection cable. delete delete

Images