KR20110030872A - Control system of cctv - Google Patents

Abstract

PURPOSE: A CCTV control system is provided to offer multiprotocol and compatibility with other products. CONSTITUTION: An address is inputted as a decimal data through an address input unit(210). A protocol setting unit(220) stores the protocol information by product in order to support multiprotocol. A specific protocol is selected through the protocol setting unit. A display unit(230) indicates the operation state of each part of the receiver. A microprocessor(240) process a control data transmitted from the transmitter.

Description

Surveillance Camera Control System {Control System Of CCTV}

The present invention relates to a surveillance camera control system, and more particularly, an image obtained by controlling a pan and tilt and a lens of a surveillance camera by receiving a signal transmitted from a transmitter from a receiver and transmitting the image through a coaxial cable. A surveillance camera control system for outputting to a monitor.

In particular, the present invention can be input as a decimal data when setting the address of the receiver, the administrator can easily set the address of the receiver, it is compatible with other products by supporting a multi-protocol.

In general, the surveillance camera control system includes a transmitter for transmitting a control signal of the surveillance camera and outputting an image transmitted from the surveillance camera to a monitor, and a plurality of receivers and surveillance cameras for controlling the surveillance camera by receiving the control signal of the transmitter. It is composed.

In the conventional surveillance camera control system, since a plurality of receivers are configured and the control signals of the transmitter are transmitted by multicasting, an address setting for specifying each receiver is required.

However, a conventional receiver must directly input binary data when setting an address as shown in FIG. 1.

For example, when a maximum number of 999 receivers is configured, a 10-digit binary data input unit is formed to input 999 addresses, and when a receiver address is "30", "0000011110" should be input.

Therefore, there is a very inconvenient problem when an administrator unfamiliar with binary data sets an address.

In addition, since the conventional receiver supports only a transmitter and a specific protocol, a product having a different transmitter and a protocol is not compatible, and thus the transmitter and the receiver must be configured with the same product, thereby inferior in compatibility.

In addition, the conventional receiver has a problem that it is difficult to determine which part has failed when not properly operated because it is impossible to check the operation state.

In order to solve the above problems, an object of the present invention is to easily set the address of the receiver, support multi-protocol, compatible with other products, and control the surveillance camera to check the operation state of each part of the receiver. To provide a system.

In order to achieve the above object, a surveillance camera control system according to the present invention transmits a pan / tilt control signal of a surveillance camera and outputs an image transmitted from the surveillance camera, and is inputted to its address from the transmitter. A surveillance camera control system including a receiver and a surveillance camera for receiving the control signal and controlling the surveillance camera, wherein the receiver includes an address input unit capable of inputting an address as decimal data and protocol information for each product to support multiprotocol. It characterized in that it comprises a display unit for storing the operating state of each part of the receiver and the protocol setting unit for selecting a specific protocol.

The address input unit may include a binary data input module to which decimal data is input and a binary data conversion module to convert the input decimal data into binary data that can communicate.

And the decimal data input module is characterized in that the contact is formed in a circular form from 0 to 9 for each digit and is configured in a rotary switch method that can be set to a fixed number to the corresponding number by rotation.

The decimal data input module may include a display window formed for each digit and a number button for inputting a number into the display window.

And the receiver is characterized in that the RS232C port is provided to download the protocol data not supported in the memory.

In addition, the display unit is characterized in that the LED display for the operation state, the data reception (RX) or transmission (TX) state, the power state of the surveillance camera, respectively.

The transmitter or receiver further includes a self-test interface for determining whether there is an error in the operation of the internal component-CPU or the relay.

As described above, the surveillance camera control system according to the present invention is easy to set the address of the receiver, it is compatible with other products by supporting multi-protocol, and has an excellent effect of checking the operation state of each part of the transmitter and the receiver. Occurs. In addition, the self-test feature provides an excellent effect that facilitates installation and maintenance.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a system configuration diagram of a surveillance camera control system according to a preferred embodiment of the present invention, Figure 3 is a detailed block diagram of FIG.

2 and 3, the surveillance camera control system according to the present invention may include a transmitter 10, a receiver 20, and a surveillance camera 30. Here, the receiver and the surveillance camera may be integrally formed.

Surveillance camera control system according to the present invention receives a signal from the transmitter 10 from the receiver 20 to control the pan / tilt driver 310 and the lens driver 30 of the surveillance camera 30, the control Is transmitted to the monitor 340 of the transmitter through the coaxial cable.

More specifically, the transmitter 30 has a key matrix 310 for setting state information such as an address and a protocol of a receiver through an operation button interface of the transmitter, and a joystick for controlling pan / tilt and a lens of the surveillance camera in three axes. 320, a microprocessor 330 for controlling control data transmission with a surveillance camera, a display unit 340 for displaying a control state / setting state of a transmitter, a display unit 350 for displaying state information of a transmitter, and a state of the receiver. And a memory 360 for storing information, setting information, and the like.

4 is a flowchart schematically showing data processing of a transmitter according to a preferred embodiment of the present invention.

Referring to FIG. 4, first, it is checked whether there is data input to the key matrix 310 or the joystick 320, and if there is input data, it is checked whether it is a key input or a joystick input.

Subsequently, the inputted data is analyzed and the surveillance camera control data is transmitted to the receiver, and in the case of internal data related to the operation and setting of the transmitter, not the control data, the transmitter itself performs operations on the input data.

On the other hand, the receiver 20 according to the present invention is a protocol setting that can select the protocol of a specific product by storing the protocol information for each product in order to support the multi-protocol and the address input unit 210, the decimal data is input address is set The display unit 230, which displays the operation state of each part of the receiver 220, the microprocessor 240 that processes the control data transmitted from the transmitter, and an internal component-CPU, relay, etc. The self-test interface 250 for determining, the surveillance camera interface unit 260 for zooming / focusing the pan / tilt and lens of the surveillance camera, the memory 270 for storing PRESET information, and the alarm unit 280 for alarm input. ), AUX 290 for the AUX output of the floodlight can be configured.

Here, the transmitter 10 and the receiver 20 are for transmitting and receiving data through the RS-422 communication interface, but all serial communication interfaces such as RS-485 may be applied.

Since the transmitter 10 transmits control data to the plurality of receivers 20 by multicasting, each receiver must have an address that can be identified by the transmitter.

5 is an exemplary diagram illustrating that control data is transmitted according to a preferred embodiment of the present invention.

Referring to FIG. 5, when the transmitter transmits "TLIT UP" control data to a receiver having an address "486", the transmitter transmits the address and the control data through multicasting through a LAN or an internet network.

On the receiver side, a receiver that does not match its address does not receive data, and only a receiver that matches the address receives data.

Therefore, it is necessary to set the address of the receiver through the address setting unit 210.

The address setting unit 210 may be configured to include a binary data input module for inputting the decimal data and a binary data conversion module for converting the input decimal data into binary data capable of communication.

The decimal data input module may have any structure capable of inputting decimal data such as a rotary switching method or a button input method.

Although FIG. 5 is an embodiment of transmitting to RS422, it is obvious that it may be transmitted by other methods such as RS232 / RS485.

6 is an exemplary diagram of a decimal data input module according to a preferred embodiment of the present invention. 6A illustrates a rotary switching method, and FIG. 6B illustrates a button input method.

Referring to FIG. 6, first, in the rotary switching method, a rotary switch capable of inputting an address for each digit is formed, and the rotary switch is formed in a circular shape and is disposed on the circumference at equal intervals from 0 to 9, and each number The contact is formed.

Therefore, when the administrator rotates the rotary switch to the desired number, the contact is connected to the number for the corresponding position and the number input is completed.

FIG. 7A illustrates that an address is input by a rotary switching method when the address is 486. Referring to FIG.

The button input method may include a button for inputting a number as shown in FIG. 4B and a display window for displaying the number when the button is input.

The display window may be composed of seven segment LEDs displaying numbers by seven segments, and the button and the display window may be configured as an integrated touch screen.

FIG. 7B illustrates an address input by a button input method when the address is 486. Referring to FIG.

When the address is input to the decimal data through the decimal data input module as described above, the binary data conversion module converts the binary data to enable digital signal communication.

For example, when the address is "486", the address is set by converting it to "0111100110" which is a binary data value.

If an administrator directly inputs an address, an operation must be performed to convert the decimal data "486" into binary data, which is very inconvenient for an unfamiliar administrator. This problem can be solved by automatically converting to binary data.

The protocol setting unit 220 stores protocol information distinguished for each product and plays a role of enabling compatibility between other products by selecting a protocol that matches the protocol of the transmitter when the set protocol is different from the protocol of the transmitter. .

In addition, the present invention may further include an RS232C port in the receiver 20, and if the protocol information corresponding to the protocol of the transmitter is not stored in the protocol setting unit, the protocol setting from the outside through the RS232C port You can download the protocol information.

The protocol setting unit 220 analyzes the data transmitted from the transmitter and extracts and sets a matching protocol from previously stored protocol information. The protocol setting unit may have a built-in memory.

The display unit 230 is responsible for displaying the operating state of the receiver.

8 illustrates the exterior of a receiver according to a preferred embodiment of the present invention.

Referring to FIG. 8, whether the receiver 20 is transmitting (TX) or receiving (RX) data, and what operations the surveillance camera such as pan / tilt and lens control (PAN RIGHT, PAN LEFT, TILT UP, TILT DOWN, AUX1) , AUX2, ZOOM IN, ZOOM OUT, FOCUS NEAR, FOCUS FAR) or whether the power is applied (POWER) can be known through the display unit 230.

The display unit 230 may be configured as an LED. The display unit 230 may be turned on while the corresponding operation is being performed, and when the operation is terminated, the display unit 230 may be turned off to easily check the state of the receiver.

In addition, the self test interface 250 is responsible for checking whether there is an error in operation due to an internal component-CPU, a relay or the like.

If there is an error in the control data, an error data is transmitted to the transmitter through RS422.

More specifically, the self test interface (Option / self test) may be composed of two dip switches and a start switch, as shown in Figure 8, through this protocol, baudrate, duplex / simplex (Duplex / Simplex) You can perform alarm settings, pan / tilt, and lens tests. Here, the two dip switches may be composed of 2P and 8P, respectively.

Table 1 below shows setting information of the 2P dip switch.

<Table 2> shows setting information of the 8P dip switch when the 2P dip switch is in the pan / tilt test mode, and <Table 3> shows setting information of the 8P dip switch when the lens test mode is used.

TABLE 2

TABLE 3

For example, in order to perform the pan / tilt test, set the 2p dip switch to 10 referring to <Table 1>, and refer to <Table 2> to Pan Right, Left, Tilt Up, Down, Auto Pan, AUX1. , Set one part of AUX2 for test to 1 (ON) and press START button.

   Example 1) 2p Dip-> 10 8p Dip-> 10000000 Press START to start Pan Right, START 1 more time to pan right

   Example 2) 2p Dip-> 10 8p Dip-> 00000010 Press START to activate AUX1, START once to activate AUX1

  To test the lens, set the 2p dip switch to 01 by referring to <Table 1>, and refer to <Table 3> for only one part of the test for Zoom In, Out, Focus Near, and Far 1 (ON). And press the START button.

   Example 1) 2p Dip-> 01 8p Dip-> 01000000 Press START to zoom out, or press START once more to zoom out

   Through the above process, the self-test operation determines whether the operation appears in the status display unit or not.

9 is a flowchart schematically showing data processing of a receiver according to a preferred embodiment of the present invention.

Referring to FIG. 9, first, when there is a data input through the receiver 20, an error check is performed among the input data values to determine whether there is an error in the data. Here, a check sum method may be used as the error check method.

Subsequently, if there is no error in the data, the data is analyzed to determine whether the control data for controlling the surveillance camera or the internal data for the receiver itself.

In the case of control data, whether the pan / tilt control data or the lens control data is distinguished and the pan / tilt control data is controlled, the pan / tilt driver of the surveillance camera is controlled, and in the case of the lens control data, the lens driver is controlled. .

In the case of internal data, the receiver processes the internal data according to the input contents.

The scope of the present invention is not limited to the above-described embodiment, but may be embodied in various forms of embodiments within the scope of the appended claims. Without departing from the gist of the invention claimed in the claims, it is intended that any person skilled in the art to which the present invention pertains falls within the scope of the claims described in the present invention to various extents which can be modified.

1 illustrates a conventional address input module.

2 is a system configuration diagram of a surveillance camera control system according to a preferred embodiment of the present invention, Figure 3 is a detailed block diagram of FIG.

4 is a flowchart schematically showing data processing of a transmitter according to a preferred embodiment of the present invention.

5 is an exemplary diagram illustrating that control data is transmitted according to a preferred embodiment of the present invention.

6 is an exemplary diagram of a decimal data input module according to a preferred embodiment of the present invention. 6A illustrates a rotary switching method, and FIG. 6B illustrates a button input method.

FIG. 7A illustrates that an address is input by a rotary switching method when the address is 486. Referring to FIG.

FIG. 7B illustrates an address input by a button input method when the address is 486. Referring to FIG.

8 illustrates the exterior of a receiver in accordance with a preferred embodiment of the present invention.

9 is a flowchart schematically showing data processing of a receiver according to a preferred embodiment of the present invention.

Claims (7)

It includes a transmitter for transmitting a pan / tilt control signal of the surveillance camera, and outputting an image transmitted from the surveillance camera, and a receiver and surveillance camera for receiving the control signal input to its address from the transmitter to control the surveillance camera. Surveillance camera control system, The receiver is An address input unit capable of inputting an address in decimal data; A protocol setting unit configured to select a specific protocol by storing product-specific protocol information to support a multiprotocol; Surveillance camera control system comprising a display unit for displaying the operation status of each part of the receiver. The method of claim 1, The address input unit A decimal data input module to which decimal data is input; Surveillance camera control system comprising a binary data conversion module for converting the inputted decimal data into binary data capable of communication. 3. The method of claim 2, The decimal data input module Surveillance camera control system, characterized in that the contact is formed in a circular form from 0 to 9 for each digit and the rotary switch type that can set the number by fixing to the corresponding number by rotation. 3. The method of claim 2, The decimal data input module Display window formed by each digit Surveillance camera control system, characterized in that it comprises a number button that can enter a number on the display window. The method of claim 1, The receiver is Surveillance camera control system, characterized in that the RS232C port is provided to download the protocol data not supported in the memory. The method of claim 1, The display unit Surveillance camera control system, characterized in that consisting of LED to display the operation status, data reception (RX) or transmission (TX) status, power status of the surveillance camera, respectively. The method of claim 1, The transmitter and receiver Surveillance camera control system, characterized in that it further comprises a self-test interface for determining whether there is an error in the operation of the internal component-CPU or relay.

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