KR100383664B1 - Security System by Using Low Power Simple Wireless Network and Mobile Phone Network - Google Patents

Abstract

The present invention relates to a security system using a low-power simple wireless network and a mobile phone network, and transmits and receives various data in a time division manner in a home security system composed of a set-top box, various sensor-equipped terminals, and a mobile phone. The security system is installed without any external appearance while maintaining security through the interference prevention device. Such a security system can immediately and automatically report the situation inside the home from the outside, and can monitor the inside of the home or office from a remote location using a digital camera equipped terminal mounted in the home. This system is inexpensive and reliable to perform the function of theft prevention.

Description

Security system and its operation method using simple wireless network and mobile phone network {Security System by Using Low Power Simple Wireless Network and Mobile Phone Network}

The present invention relates to an anti-theft security system, and more particularly, to a security system using a low-power simple wireless network and a mobile telephone network and its operation method.

1 is a block diagram of an anti-theft security system using a conventional infrared sensor. This is inconvenient to use because the infrared sensor 11 and the alarm device 12 is connected by a wire, there is a disadvantage that the burglar alarm is exposed, there is a disadvantage that the user can not receive an alarm when remote.

2 is a block diagram of an anti-theft security system using a conventional ultrasonic sensor. In addition, since the ultrasonic sensor 21 and the alarm device 22 is connected by wire, it is inconvenient to use, there is a disadvantage that the burglar alarm is exposed, there is a disadvantage that the user can not receive an alarm when remote.

An object of the present invention for solving the problems of the prior art as described above, and transmits and receives a variety of data in a time-division manner in the home security system consisting of a set-top box, a terminal equipped with various sensors and a mobile phone, and unique terminal and terminal number and interference prevention The present invention provides a security system using a simple wireless network and a mobile telephone network that can be installed invisibly while maintaining security through a device, and a method of operating the same.

In addition, the present invention can immediately and automatically report the situation inside the home from the outside, and a security system using a simple wireless network and a mobile phone network that can monitor the home or office inside at a remote location using a digital camera equipped terminal mounted in the home And to provide a method of operation thereof.

In addition, the present invention is to provide a security system using a simple wireless network and a mobile telephone network that can perform the function of the disaster prevention cheaply and reliably and its operation method.

1 is a block diagram of an anti-theft security system using a conventional infrared sensor,

2 is a block diagram of an anti-theft security system using a conventional ultrasonic sensor,

3 is an overall system diagram of a security system using a low power simple wireless network and a mobile telephone network;

4 is a timing diagram of a terminal and a set-top box,

5 is a timing diagram when a terminal with a digital camera is turned on.

※ Explanation of code about main part of drawing ※

310: home security system 311: set-top box

312: low power wireless transceiver 313: security system mobile phone

314: terminal with the ultrasonic sensor 315: terminal with the infrared sensor

316: terminal with a temperature sensor 317: terminal with a digital camera

320: mobile phone network 330: subscriber mobile phone of the security system

Security system using a simple wireless network and a mobile telephone network according to the present invention for achieving the above object comprises a plurality of sensing means for monitoring the abnormal state of the home;

A control means for one-to-one data communication with each of the sensing means through a simple wireless link, and when an abnormal state of the premises is detected by the at least one sensing means, transmitting an error message to the subscriber mobile telephone of the security system through the mobile telephone network. It is characterized by including.

In addition, a method of operating a security system using a simple wireless network and a mobile telephone network according to the present invention includes: a first step of the control means transmitting a synchronization signal to the plurality of sensing means;

A second step of the control means allocating a time slot for data transmission and reception to the plurality of sensing means and wirelessly transmitting and receiving movement information and operation information with the plurality of sensing means in a time division duplexing manner;

A third step of transmitting, by the control means, an error occurrence message to the subscriber mobile phone of the security system when an abnormal detection signal is input from any sensing means to the control means during the operation of the second step; And

And a fourth step of transmitting, by the control means, the image data photographed through the digital camera to the specific Internet IP address when the image data transmission command is received from the subscriber mobile phone of the security system to the specific Internet IP address. It features.

Hereinafter, an indoor security system using a simple wireless network and a mobile telephone network and an operation method thereof will be described in detail with reference to the accompanying drawings.

3 is an overall system block diagram of an indoor security system using a low power simple wireless network and a mobile telephone network according to an embodiment of the present invention.

Referring to FIG. 3, the home security system 310 includes a set top box 311, a low power wireless transceiver 312, a security system mobile phone 313, an ultrasonic sensor terminal 314, and an infrared sensor. And a terminal 315 with a temperature sensor and a terminal 317 with a digital camera.

The set-top box 311 is a low-power wireless transmission and reception device 312 to output a low-power wireless signal output from the terminal 314 with the ultrasonic sensor, the terminal 315 with the infrared sensor, the terminal 316 with the temperature sensor and the terminal 317 with the digital camera. Receive and process through, and transmits a text message to the subscriber mobile phone 330 of the security system through the security system mobile phone 313 attached to the set-top box 311 according to the processing result. The text message is then transmitted through the mobile telephone network 320, and the subscriber mobile phone 330 of the security system receives the text message.

The subscriber of the security system can transmit a specific message to the home security system 310 by using the mobile phone 330, and can instruct to transmit a signal from the digital camera attachment terminal 7 to a PC of a specific IP. The subscriber of the security system can then look at the situation in the home from a PC connected to a mobile phone with Internet access at a remote location, or from a PC connected to the Internet.

The set top box 311 and the low power wireless transceiver 312 are connected to each other by a coaxial cable. The low power wireless transceiver 312 merely transmits the baseband signal from the set-top box 311 to each terminal by performing the high-frequency conversion (up-converting) of the 2.4 GHz band, and the 2.4 GHz band transmitted from the terminals. The signal is transmitted to the set top box 311 through a coaxial cable by down-converting the signal to the baseband. The transmit power of the low power radio transceiver is limited to 10mW (10dBm), thereby reducing confusion with other nearby home security systems.

The set-top box and various terminals use a unique simple wireless link limited by this patent. The set-top box periodically checks the operations of the terminal 314 with the ultrasonic sensor, the terminal 315 with the infrared sensor, the terminal 316 with the temperature sensor, and the terminal 7 with the digital camera. If it checks about three times and if it is determined that the abnormality after that, immediately sends a text message prepared in advance to the subscriber mobile phone 330 of the security system (for example, more than three times the terminal).

When a message indicating an abnormal state appears on the subscriber mobile phone 330, the subscriber of the security system can check the situation of the home by sending a desired command. That is, it is possible to check the operation of all the terminals, it is possible to check the indoor situation using the terminal 317 with a digital camera mounted in the home.

The digital camera-attached terminal 317 may transmit a video (320 * 180), and often informs the set-top box 311 that it is operating normally, and turns on / off the camera according to the request of the set-top box. The set-top box 311 allocates timeslots to specific terminals in a specific time division duplex (TDD) scheme in order to prevent crosstalk of signals from multiple terminals, and the digital camera-equipped terminal 317 is assigned a time slot. Image data and an operation abnormal signal are sent to the set top box 311 during the slot.

When four terminals are connected to the set-top box 311 of the home security system 310, as shown in Figure 3, the interval of the time slot is 1/8 seconds, one quarter is allocated to one terminal. In the first 1/8 second of the 1/4 seconds allocated to one terminal, the set-top box transmits data to the corresponding terminal, and the set-top box allocates to receive data from the corresponding terminal during the next 1/8 second. After that, 1/4 second is allocated to the next terminal. Data is transmitted for 1/8 second and data is received for the remaining 1/8 second.

After 1 second, the set-top box finishes communication with all terminals and prepares the next command. The terminal 316 with a temperature sensor is a terminal in preparation for a fire and waits for a time slot that can transmit itself when the surrounding temperature is above a predetermined temperature and transmits a temperature and an alarm signal to the set-top box 311. In the set-top box 311, upon receiving the abnormal signal of the terminal 316 with the temperature sensor, the terminal immediately enters the confirmation mode, requests the terminal 316 with the temperature sensor to retransmit temperature information, and receives the command with the temperature sensor ( 316 transmits the current temperature. The set top box 311 compares the temperature with the stored reference temperature again and enters the alarm initiation mode and transmits a fire occurrence text message to the subscriber mobile phone 330 through the mobile phone 313 of the security system. The transmitted text message is received by the subscriber mobile phone 330 of the security system via the mobile telephone network 320, and the subscriber of the security system transmits a pre-stored command code to his mobile phone. By turning on the digital camera of the terminal 317 with the digital camera through the set-top box 311, it is possible to check the situation of the home in real time via the Internet.

The infrared ray sensor attached terminal 315 detects and reports an external intrusion of the home security system 310. When the infrared sensor detects the movement of the object, it waits for its timeslot and transmits the information, and the set-top box 311 immediately enters the alert mode and sends a text message indicating that the intruder is a subscriber. The ultrasonic sensor attached terminal 314 performs a motion detection role similarly to the infrared sensor attached terminal 315. All terminals move in synchronization with the clock of the set-top box 311.

In the indoor security system 310, wireless data between the set-top box 311 and each terminal is transmitted and received using a low power simple wireless link.

Low-power simple wireless networks use the 2.4 GHz ISM band or the 800-MHz cordless phone band. The symbol rate is 1 Mbps, the modulation uses a binary FSK, and the output is 1 mW. Since a 5-bit terminal address is assigned to various terminals, one set-top box can control up to 32 terminals, but one of them can control up to 31 terminals because it is used for broadcasting. The set-top box outputs a synchronization signal to all terminals as soon as power is turned on to achieve synchronization, and then assigns a unique timeslot to each terminal. All terminals can transmit data only at their assigned time. All terminals must transmit 5 bit terminal address and 32 bit terminal unique number at the same time when transmitting data, and also transmit 5 bit terminal address and 32 bit terminal unique number at the same time when set-top box calls the terminal. do.

Each terminal and set-top box prevents interference with neighboring identical security systems through this verification process during communication. When a frequency crosstalk occurs with an adjacent system, it immediately finds an empty frequency channel and switches to the empty channel.

4 is a timing diagram of a terminal and a set-top box. When the home security system shown in FIG. 3 is turned on, the set-top box delivers a synchronization command to all terminals to synchronize and then one-to-one communication with each terminal as shown in FIG. 4, after transmitting data to the corresponding terminal from the terminal. Receive data. This transmission and reception operation is repeated for all the terminals, and if an abnormality is found, the loop is stopped and the warning operation mode is entered to perform a predetermined operation. The same time slot is assigned to all terminals except when the terminal equipped with the digital video camera is turned on.

4 is a timing diagram when the terminal with the digital camera is turned on. When the subscriber of the security system turns on the digital camera of the terminal with the digital camera through the set-top box, the set-top box collects all the time slots allocated to all terminals and uses them to deliver the digital video stream. However, since synchronization of data streams is sometimes necessary, one synchronization slot is allocated per communication time with 10 terminals to transmit synchronization signals. When the subscriber of the security system turns off the operation of the terminal with the digital camera, the set-top box immediately enters the standby mode in which all terminals are synchronized to check for abnormalities. All timeslots allocated for digital video transmission are assigned the same size to all terminals managed by the set-top box.

While the invention has been described above based on the preferred embodiments thereof, these embodiments are intended to illustrate rather than limit the invention. It will be apparent to those skilled in the art that various changes, modifications, or adjustments to the above embodiments can be made without departing from the spirit of the invention. Therefore, the protection scope of the present invention will be limited only by the appended claims, and should be construed as including all such changes, modifications or adjustments.

According to the present invention as described above, by using a low-power simple wireless network that can be implemented at low cost with low possibility of interference with the existing mobile telephone network, it is possible to implement security and disaster prevention of a general home or office in an inexpensive and reliable manner. That is, according to the present invention, the user can observe the inside of his or her home or office from a remote location, and can receive a text alert issued by the security system in any area where the mobile telephone network is installed. In addition, since the low-power simple wireless network can be installed without exposing the terminal and the set-top box to which various sensors are attached, security can be maintained, and the low-power system can be configured at low cost.

Claims (10)

A plurality of sensing means for monitoring a state of a home and outputting a state monitoring signal through a simple wireless link; A low power wireless transceiver for transmitting and receiving data with the plurality of sensing means via the simple wireless link; If a state monitoring signal is received from the sensing means in a time slot allocated to the sensing means by communicating with the plurality of sensing means through the low power wireless transceiver in a time division duplexing (TDD) manner, and an abnormal state in the home is detected. A set-top box which transmits a pre-stored warning message to a subscriber telephone and analyzes a command received from the subscriber telephone to control the plurality of sensing means; Security using a simple wireless network and a mobile phone network, characterized in that it comprises a security system mobile phone for transmitting the warning message to the subscriber phone under the control of the set-top box or a command received from the subscriber phone to the set-top box system. delete The method of claim 1, wherein the plurality of sensing means, A digital camera attached terminal and a digital camera attached terminal configured to transmit and receive low power wireless data to and from the set-top box through the simple wireless link; A temperature sensor attached to the terminal having a temperature sensor to transmit and receive low power wireless data to and from the set-top box through the simple wireless link; An infrared sensor is attached to the terminal having an infrared sensor for transmitting and receiving low-power wireless data with the set-top box through the simple wireless link; Ultrasonic sensor is attached to the security system using a simple wireless network and a mobile telephone network, characterized in that it comprises a terminal with an ultrasonic sensor for transmitting and receiving low-power wireless data to and from the set-top box via the simple wireless link. delete 4. The security system using a simple wireless network and a mobile telephone network according to claim 3, wherein each terminal transmits a terminal unique number and terminal address information to the set top box together with the status monitoring signal. The method of claim 3, wherein the set-top box controls the terminal with the digital camera when the image data transmission command from the subscriber phone is input to the specific Internet IP address, and displays the image data captured by the digital camera. Security system using a simple wireless network and a mobile phone network characterized in that the transmission to the address. Data communication terminal with digital camera, ultrasonic sensor terminal, infrared sensor terminal, temperature sensor terminal, and temperature sensor terminal to monitor the status of the premises, and each terminal with a simple wireless link, if the abnormal condition is detected in the pre-stored warning message In the operating method of a security system comprising a set-top box for transmitting the to the subscriber phone and analyzing the commands received from the subscriber phone to control the terminals, The set-top box is a first step of transmitting a synchronization signal to each of the terminals; The set-top box allocates time slots for data transmission / reception to each of the terminals by time division duplexing (TDD) and performs data transmission / reception wirelessly with the corresponding terminals in the time slots assigned to any terminal. Wow; The set-top box is a third step of transmitting the fact that the abnormal occurrence to the subscriber, if the abnormal condition is detected in the home during the second step; And The set-top box includes a fourth step of transmitting image data captured by the digital camera to the specific internet IP address when a command for transmitting image data from the subscriber to the specific internet IP address is input. Operation method of security system using wireless network and mobile phone network. delete 8. The method of claim 7, wherein each of the terminals transmits a terminal unique number and terminal address information together with data transmitted to the set-top box. The method of claim 7, wherein the fourth step, The set-top box stops data transmission and reception with the other sensing means while transmitting image data captured by the digital camera to the specific Internet IP address, and outputs only a synchronization signal for synchronization every predetermined time. Operation method of security system using wireless network and mobile phone network.