KR20090097695A - Image Processing Method and Apparatus for Home Automation System - Google Patents

Abstract

The present invention detects an operation in a set sensing area, and if an operation is detected, captures image information according to a sensing sensitivity or a winding time, and requests a storage device of the home automation system to store the image information. When the storage of the video information is requested from the door phone, by starting a home automation system including a generation device for storing the video information, the door phone of the home automation system detects the operation of the sensing area in addition to the visitor's visit, It is possible to save the image captured by the camera module through the generation device to provide enhanced security functions.

Description

Apparatus and method of processing image in home automation system

The present invention relates to an image processing method and apparatus for a home automation system, and more particularly, a door phone of a home automation system detects not only a visitor's visit but also an operation of a sensing area, so as to capture an image captured by a camera module. The present invention relates to an image processing method and apparatus for a home automation system, which can store data through a generation device and provide enhanced security functions.

Today, home automation (HA) system refers to a technology that facilitates householder's daily life by utilizing electronic / communication technology to automatically control various electrical / electronic devices in a household.

In general, the convenience provided by home automation systems is the Video Door-Phone function, which allows visitors to talk while watching a video screen, and detects an intruder who intrudes for unauthorized and malicious purposes. Security function to prevent gas leakage, automatic gas leak detection / gas valve auto-locking function, fire occurrence detection and automatic fire extinguishing function to prevent fire occurrence in advance.

In addition, the home automation system provides various functions such as automatic adjustment of illuminance of the indoor lighting device and remote meter reading function of various meters, thereby providing convenience to the subscriber.

Such a home automation system can control various devices installed in a household even when the subscriber is not in the household, and also provides an effect of preventing gas leakage, fire, and illegal intrusion.

In addition, the home automation system allows the head of household to check the visitor through the wall pad of the image captured by the camera module provided in the door phone installed in the entrance, and the head of household can store the image of the visitor as needed. To help.

1 is a block diagram illustrating a general home automation system.

Referring to FIG. 1, a general home automation system 10 includes a door phone 20 and a generation device 30 installed at a front door.

The door phone 20 has a camera module 21 for providing images of a front surface of a lens (not shown) and a voice input / output for inputting a visitor's voice and outputting a householder's voice received from the generation device 30. A button unit 24 having an output unit 22 and a button for the visitor to notify the head of household, and when the visitor selects the button of the button unit 24, the visitor's video information provided from the camera module 22. And transmitting the voice information of the visitor input through the voice input / output unit 22 to the household device 30, and transmitting the householder's voice information received from the household device 30 through the voice input / output unit 22. It includes a door phone control unit 22.

The door phone control unit 22 transmits a call signal to the generation device 30 when the visitor selects the button of the button unit 24.

The generation device 30 includes a keypad 34 of a plurality of keys or a touch screen type, a display 33 for outputting display information, for example, an image of a visitor received from the door phone 20; When the call signal is received from the storage unit 31 storing the visitor's video information and the door phone 20, the voice information of the visitor received from the door phone 20 is output through a voice output means (not shown). While receiving the voice of the householder and includes a central processing unit 32 for transmitting to the door phone (20).

The central processing unit 32 outputs the visitor's video information received from the door phone 20 through the display unit 33 and the householder selects the recording through the keypad unit 34. Store it in 31).

That is, the general home automation system 10 not only stores the visitor's video information among the video information captured by the camera module 21 of the door phone 20, but also the visitor's video information selected by the head of household. Since it only stores, the utility of the built-in home automation system 10 is inferior.

In other words, if the home automation system 10 that is built at a high cost and is not limited to only the home automation function but provides other functions, the utility of the home automation system 10 will be improved.

For example, a closed-circuit television system ( CCTV ) that is installed in a crime zone through a home automation system (10) built in households and captures and stores images for arrest of criminals after crimes and crimes occur. By providing a function such as television, it is possible to provide enhanced security functions.

The present invention has been proposed to satisfy the above-described needs, and an object thereof is to provide a method and an apparatus for processing an image of a home automation system, which can provide an enhanced security function to a general security function provided by a home automation system. There is this.

Another object of the present invention is to provide an image processing method and apparatus for a home automation system that provide functions in addition to a home automation function provided through a home automation system to improve the utility of the home automation system.

According to an aspect of the present invention, a home automation system detects an operation in a set sensing area, and when an operation is detected, captures image information according to a sensing sensitivity or a winding time, and stores the image information in the home automation system. A door phone requesting a generation device, and a generation device for storing the video information when the storage of the video information is requested from the door phone.

The door phone may include a camera module for capturing and providing image information of the front surface of the lens, a motion in the sensing area, comparing the detected sensitivity or detection time with a reference sensitivity or a reference time, and detecting the sensitivity or If the detection time is large, and transmits a storage request signal to the generation device, and driving the camera module to receive the image information and includes a motion detection unit for transmitting to the generation device.

The motion detection unit may detect a motion in the sensing area, and when the motion is detected, a sensor unit that provides a detection signal having a magnitude corresponding to the detection sensitivity, the detection sensitivity of the detection signal provided from the sensor unit, or And a storage determination unit configured to transmit the storage request signal and the image information to the generation device when the detection time at which the detection signal is received is greater than the reference sensitivity or the reference time.

The sensor unit is implemented by at least one infrared sensor, and transmits a sensing signal having a size corresponding to the sensitivity of the detected operation to the storage determining unit.

The storage determining unit compares at least one or more of the sensing sensitivity or the sensing time with the reference sensitivity or the reference time.

The motion detection unit further includes a sensitivity adjustment unit that enables adjustment of the reference sensitivity, and a time adjustment unit that enables adjustment of the reference time.

According to another aspect of the present invention, a door phone of a home automation system includes a camera module that provides an image of a front surface of a lens, and detects an operation in a sensing area, and when the operation is detected, a size corresponding to the detection sensitivity. When the visitor selects a visit button and a sensor unit that provides a detection signal, image information and audio information of the visitor provided from the camera module are transmitted to the generation device of the home automation system, and the householder's voice received from the generation device. Outputs information, compares a detection sensitivity or a detection time corresponding to the detection signal provided from the sensor unit with a reference sensitivity or a reference time, and when the detection sensitivity or the detection time is large, the generation device is provided from the camera module. It includes a door phone controller for transmitting and requesting image information.

The door phone control unit stores a request for storing when the detection sensitivity or the detection time of the detection signal provided from the sensor unit is greater than the reference sensitivity or the reference time, at least one or more of the detection sensitivity or the detection time. And a storage determining unit which transmits a signal to the generation device and transmits the image information to the generation device.

According to another aspect of the present invention, there is provided a method of processing an image of a home automation system. Comparing the time with a preset reference sensitivity or reference time, and if the detection sensitivity or the detection time is greater than the reference sensitivity or the reference time, transmitting the image information captured by the camera module to a generation device for storage. And storing, by the generation device, the image information according to a storage request of the door phone.

Comparing the detection sensitivity or the detection time of the detected motion with a predetermined reference sensitivity or reference time, the step of confirming that the door phone is set a reference sensitivity or reference time, and if only the reference sensitivity is set, the detection Comparing whether the sensitivity is greater than the reference sensitivity; comparing only the reference time if the reference time is set; and comparing the sensitivity with the reference time; and if the reference sensitivity and the reference time are set, the detection sensitivity is the reference sensitivity. Greater than and comparing whether the sensing time is greater than the reference time.

The image processing method of the home automation system may include: checking whether the motion is detected in the sensing area after the door phone makes the storage request; and if the motion in the sensing area is not detected, transferring the image to the generation device. The method may further include requesting termination of the storage.

The reference sensitivity or reference time can be variably adjusted by the head of household or manager.

As described above, according to the present invention, the door phone of the home automation system detects not only the visitor's visit but also the operation of the sensing area, so that the image captured by the camera module can be stored through the generation device. Can provide functionality.

In addition, according to the present invention, it is possible to provide other functions (out-of-house security function) in addition to the basic home automation function with a simple addition to the existing built home automation system.

Hereinafter, an image processing method and a device of a home automation system according to the present invention will be described in detail with reference to the accompanying drawings, and the detailed description of the main technical matters of the present invention or the well-known technical details will be omitted.

2 is a block diagram illustrating a home automation system according to a first embodiment of the present invention.

Referring to FIG. 2, the door phone 200 of the home automation system 100 according to the present invention may include a motion detector 250, a camera module 210, a door phone controller 230, and voice input / output. A unit 220, a button unit 240, and the motion detector 250 includes a sensor unit 251, a storage determining unit 254, a sensitivity adjusting unit 252, and a time adjusting unit 253. do.

The generation device 300 of the home automation system 100 includes a storage unit 310, a display unit 330, a keypad unit 340, and a central processing unit 320. An image processor 321 is included.

The camera module 210 of the door phone 200 soaks and provides an image of the front surface of the lens (not shown), and the voice input / output unit 220 receives a visitor's voice and receives the voice from the household device 300. Output the voice of the householder.

The button unit 240 is provided with a button for the visitor to inform the head of the household, the door phone control unit 230 transmits a call signal to the household device 300 when the visitor selects the button of the button unit 240 In addition, the visitor's image information provided from the camera module 210 and the visitor's voice information input through the audio input / output unit 220 are transmitted to the generation device 300, and the householder received from the generation device 300. The voice information is output through the voice input / output unit 220.

The motion detector 250 detects motion in the front direction of the front door in which the door phone 200 is installed, that is, the lens direction of the camera module 210, and detects a detection sensitivity or a detection time and a preset reference sensitivity or reference time of the detected motion. In comparison, when the detection sensitivity or the detection time is greater than the reference sensitivity or the reference time, the camera module 210 is driven to transmit the image information to the generation device 300 so that the generation device 300 stores the image information. do.

That is, the sensor unit 251 of the motion detection unit 250 may be implemented with one or more infrared sensors, and operations generated in the sensing area, for example, operations of an intruder roaming the sensing area for malicious purposes. Detects and transmits the detection signal to the storage determination unit 254.

In this case, the sensor unit 251 transmits a detection signal having a magnitude corresponding to the sensitivity of the detected motion to the storage determination unit 254, and transmits the detection signal to the storage determination unit 254 for the time when the motion is detected. send.

The sensitivity adjusting unit 252, the time adjusting unit 253, and the storage determining unit 254 may be designed and implemented as a plurality of circuit elements. The sensitivity adjusting unit 252 and the time adjusting unit 253 may be designed and implemented by including a variable resistor. For example, it is desirable to allow the head of household or manager to adjust the reference sensitivity and reference time.

For example, the reference sensitivity value determined according to the variable resistance value of the sensitivity adjusting unit 252 is input to the reference value of the comparator designed and implemented in the storage determining unit 254, and the sensitivity signal received from the sensor unit 251. By inputting as a comparison value, if the magnitude of the sensitivity signal is greater than the reference sensitivity value, it is possible to transmit and store the image information to the generation device 300.

At this time, the storage determination unit 254 transmits the image information to the generation device 300 when the sensitivity time for which the magnitude of the sensitivity signal is greater than the reference sensitivity value is greater than the reference time.

That is, the sensitivity adjustment unit 252 provides the reference sensitivity to the storage determination unit 254, the time adjuster 253 provides the reference time to the storage determination unit 254, and the reference sensitivity and the reference time are the head of household or manager. Can be adjusted.

The reason for adjusting the reference sensitivity and the reference time as described above is that it is inefficient to store the image information according to the operation whenever a motion of a person passing through the front door of a generation without malicious purpose is detected. It is for storing image information only when a certain sensitivity and a predetermined time or more are detected.

If the magnitude of the detection signal (the sensitivity of the motion detection) received from the sensor unit 251 is greater than the reference sensitivity or the detection time at which the detection signal is received is greater than the reference time, the storage determination unit 254 stores the camera module 210. Drive to obtain the image information.

The storage determination unit 254 transmits a storage request signal to the generation device 300, and transmits the image information provided from the camera module 210 to the generation device 300.

On the other hand, if the detection signal is not received after transmitting the storage request signal to the generation device 300, the storage determination unit 254 stops driving of the camera module 210, the storage end signal to the generation device 300 To send.

In addition, the keypad unit 340 of the generation device 300 is implemented by a plurality of keys or a touch screen method, so that the head of household may select a function, and the display unit 330 may display information, for example, a door phone ( The image of the visitor received from 200 is output.

When the call signal is received from the door phone 200, the central processing unit 320 receives the householder's voice while outputting the voice information of the visitor received from the door phone 200 through a voice output means (not shown). And transmits the visitor's image information through the display unit 330.

The central processing unit 320 stores the video information of the visitor received from the door phone 200 in the storage unit 310 when the householder selects recording through the keypad unit 340.

Meanwhile, when the storage request signal is received from the door phone 200, the image processor 321 of the central processing unit 320 stores the image information received from the door phone 200 in the storage 310.

When the storage end signal is received from the door phone 200, the image processor 321 ends the storing of the image information.

When the householder or the manager requests the stored image information (recorded image information) through the keypad unit 340, the generation device 300 provides the stored image information in the storage unit 310.

Meanwhile, the generation device 300 supplies a driving voltage to the door phone 200, and the door phone 200 is not a visitor's visit, that is, in a state in which the visitor does not select a button of the button unit 240. Only the motion detector 250 is driven.

Accordingly, the wire arrangement between the generation device 300 and the door phone 200 may further include an auxiliary power line for providing an auxiliary voltage to the motion detector 250 and a signal line for transmitting a storage request signal and image information.

3 is a view for explaining the wire arrangement between the door phone and the generation device.

As shown in FIG. 3, the wire arrangement between the generation device 300 and the door phone 200 includes a plurality of power lines (+,-) (d) for supplying a main voltage and a call signal from the door phone control unit 230. The first signal line (e) to be transmitted is arranged, and the plurality of power lines (+,-) (a) for supplying an auxiliary voltage to the motion detection unit 250 by the generation device 300 and the door phone 200 A second signal line b for transmitting the storage request signal and a storage end signal and a third signal line c for transmitting the image information are additionally arranged.

Therefore, the door phone 200 not only minimizes power consumption by driving the door phone control unit 230 when the visitor visits and selects the button of the button unit 240, but also not only the image information of the visitor. For the purpose of crime prevention, the front door can be detected and image information can be saved.

4 is a block diagram illustrating a home automation system according to a second embodiment of the present invention.

The same reference numerals are given to the same components as those shown in FIG. 2 among the components shown in FIG. 4, and detailed descriptions thereof will be omitted.

Referring to FIG. 4, the magnitude of the detection signal received from the sensor unit 251 and the reference sensitivity are compared, and the detection time is compared with the reference time to determine the storage of the image information provided from the camera module 210. It can be seen that the storage determination unit 254 ′ may be implemented in software in the door phone controller 230 ′ instead of being implemented as a separate hardware (circuit element).

Therefore, the storage determining unit 254 'does not need an additional wiring arrangement as described in FIG. 3 by implementing the software, as well as the door phone of the existing built home automation system 100'. 200 '), the sensor unit 251, the sensitivity adjusting unit 252, and the time adjusting unit 253 can be simply implemented, and the storage determining unit 254' can be implemented in the door phone controller 230 '. According to the present invention, additional costs for providing additional functions through the home automation system 100 may be reduced.

5 is a flowchart for describing an image processing method of a home automation system according to an exemplary embodiment of the present invention.

Referring to FIG. 5, the door phone 200 of the home automation system 100 detects an operation in a sensing area through a sensor unit 251 provided at step S 100.

When the door phone 200 detects an operation, the door phone 200 checks whether the reference sensitivity and the reference time are set (S 110).

When only the reference sensitivity is set, the door phone 200 compares the detection sensitivity and the reference sensitivity of the motion detected in the sensing area to determine whether the detection sensitivity is greater than the reference sensitivity (S 120).

The detection sensitivity may be the magnitude of a detection signal detected by the sensor unit 251 and output.

When the detection sensitivity is greater than the reference sensitivity, the door phone 200 transmits a storage request signal to the generation device 300 and transmits image information captured by the camera module 210 in operation S 160.

On the other hand, when only the reference time is set, the door phone 200 compares the detection time and the reference time when the motion is detected in the sensing area, and determines whether the detection time is greater than the reference time (S 130).

When the detection time is greater than the reference time, the door phone 200 transmits a storage request signal to the generation device 300 and transmits image information captured by the camera module 210 (S 160).

In addition, when the reference sensitivity and the reference time are set, the door phone 200 checks whether the detection sensitivity is greater than the reference sensitivity (S 140), and if the detection sensitivity is greater than the reference sensitivity, the door phone 200 determines whether the motion detection time is greater than the reference time. When the detection time is greater than the reference time (S 150), the storage request signal is transmitted to the generation device 300, and image information captured by the camera module 210 is transmitted (S 160).

When the generation device 300 receives the storage request signal from the door phone 200, the generation device 300 stores the image information (S 170).

Meanwhile, the door phone 200 checks whether an operation is detected in the sensing area after transmitting the storage request signal to the generation device 300 (S 180), and if the operation is not detected, generates the storage end signal. Transmitted to 300 (S 190).

When the generation end signal is received from the door phone 200, the generation device 300 ends the storage of the image information (S 200).

Therefore, even if the visitor does not select the button of the door phone 200, the home automation system 100 may detect image information when the motion is detected in the sensing area (for example, the front of the front door) by more than the reference sensitivity or the sensitivity time. It can be stored to provide enhanced security.

Although the present invention has been described in detail through the representative embodiments, those skilled in the art to which the present invention pertains can make various modifications without departing from the scope of the present invention. I will understand. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined by the claims below and equivalents thereof.

1 is a block diagram illustrating a general home automation system.

2 is a block diagram for explaining a home automation system according to a first embodiment of the present invention;

3 is a view for explaining the wire arrangement between the door phone and the generation device.

4 is a block diagram for explaining a home automation system according to a second embodiment of the present invention;

5 is a flowchart for explaining an image processing method of a home automation system according to a preferred embodiment of the present invention.

<Description of Signs for Main Parts of Drawings>

100: home automation system 200: door phone

210: camera module 220: voice input / output unit

230: door phone control unit 240: button unit

250: motion detection unit 251: sensor unit

252: sensitivity adjustment unit 253: time adjustment unit

254: storage judgment unit 300: household equipment

310: storage unit 320: central processing unit

321: Image processor 330: Display unit

340: keypad portion

Claims (13)

In a home automation system, A door phone configured to sense an operation in a set sensing area, and, if an operation is detected, image information according to a detection sensitivity or a winding time, and request the generation device of the home automation system to store the image information; And a generation device for storing the image information when the image information is requested to be stored from the door phone. According to claim 1, The door phone, A camera module for capturing and providing image information of the front surface of the lens; Detect an operation in the sensing area, compare the detected sensitivity or detection time with a reference sensitivity or reference time, and if the detection sensitivity or detection time is large, transmit a storage request signal to the generation device, and send the camera module And a motion detector to receive the image information and transmit the image information to the generation device. The method of claim 2, wherein the motion detection unit, A sensor unit for detecting an operation in the sensing area and providing a detection signal having a magnitude corresponding to the detection sensitivity when the operation is detected; A storage determination unit configured to transmit the storage request signal and the image information to the generation device when the sensing sensitivity of the sensing signal provided from the sensor unit or a sensing time at which the sensing signal is received is greater than the reference sensitivity or the reference time. Home automation system included. The method of claim 3, wherein the sensor unit, A home automation system comprising at least one infrared sensor and transmitting a detection signal having a magnitude corresponding to a sensitivity of a detected operation to the storage determination unit. The method of claim 3, wherein the storage determination unit, At least one of the sensing sensitivity or the sensing time is compared with the reference sensitivity or the reference time. The method of claim 3, wherein the motion detection unit, A sensitivity adjusting unit for adjusting the reference sensitivity; And a time adjustment unit for adjusting the reference time. In the door phone of the home automation system, A camera module that provides an image of the front surface of the lens, A sensor unit for detecting a motion in a sensing area and providing a detection signal having a magnitude corresponding to the detection sensitivity when the motion is detected; When the visitor selects the visit button, the visitor's image information and audio information provided from the camera module are transmitted to the generation device of the home automation system, the householder's voice information received from the generation device is output, and the sensor unit A door that compares a sensing sensitivity or a sensing time corresponding to the sensing signal with a reference sensitivity or a reference time, and if the sensing sensitivity or the sensing time is large, transmits the image information provided from the camera module to the generation device to request storage. A home automation system comprising a phone control unit. The method of claim 7, wherein the door phone control unit, When the detection sensitivity or the detection time of the detection signal provided from the sensor unit is greater than the reference sensitivity or the reference time, at least one or more of the detection sensitivity or the detection time is greater, the storage request signal is sent to the generation device. And a storage determining unit which transmits the image information to the generation device. The method of claim 7, wherein the door phone, A sensitivity adjusting unit for adjusting the reference sensitivity; And a time adjustment unit for adjusting the reference time. In the image processing method of the home automation system, Detecting an operation of a sensing area in which the door phone is set; When the motion of the sensing area is detected, comparing the detection sensitivity or detection time of the detected motion with a preset reference sensitivity or reference time; If the detection sensitivity or the detection time is greater than the reference sensitivity or the reference time, transmitting the image information captured by the camera module to a generation device for storage; And storing, by the generation device, the image information according to a storage request of the door phone. The method of claim 10, wherein comparing the sensing sensitivity or the sensing time of the detected operation with a preset reference sensitivity or the reference time comprises: Checking whether the door phone has a reference sensitivity or a reference time set; If only the reference sensitivity is set, comparing whether the detection sensitivity is greater than the reference sensitivity; If only the reference time is set, comparing whether the detection time is greater than the reference time; And comparing the detection sensitivity with the reference sensitivity when the reference sensitivity and the reference time are set, and wherein the detection time is greater than the reference time. The method of claim 10, Checking whether a motion is detected in the sensing area after the door phone makes the storage request; If the motion in the sensing area is not detected, requesting the generation end of the storage of the generation device. The method of claim 10, wherein the reference sensitivity or reference time, An image processing method of a home automation system, characterized by variable adjustment by a head of household or a manager.

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