KR20130088568A - Access alarm apparatus and method - Google Patents

Abstract

PURPOSE: An access alarm device and an access alarm method are provided to sound the alarm considering whether risk factors are in a safe or dangerous state, thereby notifying the guardian of risks only if necessary. CONSTITUTION: A position signal transmitter (10) is attached to the child to transmit wirelessly position signals. A position signal receiver (20) is attached to risk factors to receive the wireless signals of the position signal transmitter and to transmit a distance between the position signal transmitter and the position signal receiver. A risk sensor (30) detects whether the risk factors are in a safe or dangerous state and transmits a risk detection signal. A server (50) receives a distance value between the risk factors and the child from the position signal receiver and receives the risk detection signal from the risk sensor, and notifies the guardian of risks in case the distance value is getting closer to less than a set value and the risk factors are in the dangerous state. [Reference numerals] (10,20) Position signal transmitter; (30) Risk sensor; (40) Proximity sensor; (50) Server; (60) Protector terminal; (AA) Internet

Description

ACCESS ALARM APPARATUS AND METHOD

The present invention relates to a device for protecting a child by recognizing a child's location, and more specifically, to recognize the distance between the child and the dangerous elements such as a fan, a heater and whether or not the operation of the hazard can protect the child from the hazard. Relates to a device.

Electric appliances such as electric heaters, fans, and gas stoves used in homes are convenient devices, but it is dangerous for children to be close. In addition, the veranda is at risk of falling, so it is a dangerous place for children to approach.

In order to prevent children from accessing such dangerous devices or places, caregivers should always pay attention, and there is a problem that a small injury to the caregiver may cause a great injury to the infant.

In order to solve such a problem, Korean Patent Laid-Open Publication No. 2006-99991 includes a wireless information output device driven by a wireless detection signal generated within a predetermined distance from the wireless signal detection device; A switching unit switched by the driving power source generated as the wireless information output device is driven; An alarm generating unit operable in accordance with switching of the switching unit to generate an alarm signal; And a speaker for outputting an alarm sound by the signal generated by the alarm generation unit, and detecting an infant approaching a dangerous home appliance such as an electric heater or an electric appliance in the home, thereby generating an alarm signal and notifying the guardian of a dangerous situation. Approach alarm devices are disclosed that allow infants to be protected from dangerous devices.

In addition, Korean Patent No. 795110 discloses an indoor position recognition system for preventing a safety accident by notifying in advance that a child approaches a predetermined risk factor, the position recognition tag attached to the child and transmitting a signal; At least three position recognition receivers disposed at different places and respectively detecting a distance to the position recognition tag by receiving a transmission signal of the position recognition tag; And a server that receives a distance detection value from each of the location recognition receivers, calculates the location of the location recognition tag, and compares the location with the location of the risk factor to determine and inform of danger. .

Published Patent Publication No. 2006-99991 Patent Registration No. 795110

The above-described conventional approach alarm device has the following problems.

The conventional approach warning device detects only the distance between the hazard and the child to determine whether there is a danger. However, depending on the type of hazard, the hazard may be dangerous only when it operates, not always. For example, an electric heater or a gas cooker operated by a switch that is difficult for an infant to operate is not very dangerous even when the infant is approached in a non-operating state. In addition, if the porch is locked so that the infant can not open, even if the infant is not dangerous to approach. The conventional approach warning device does not consider this point, and when the infant approaches the hazard, an alarm unconditionally sounds, there is a problem that the guardian is notified unnecessarily even in a situation that is not really dangerous.

The present invention is to improve the above-mentioned problems, access alarms that can notify the danger only when the guardian is necessary by ringing an alarm considering the distance between the hazard and the hazard and whether the hazard is a safe or dangerous state together It is an object of the present invention to provide an apparatus and an approach alarm method.

An access warning apparatus according to an embodiment of the present invention for achieving the above object is attached to a child, a location signal transmitter for transmitting a location signal wirelessly, and attached to the risk factors, wireless of the location signal transmitter A position signal receiver for receiving a signal and measuring a distance from the position signal transmitter, a danger detector for detecting whether the hazard is a dangerous state or a safe state, and transmitting a danger signal, and a distance value from the position signal receiver And receiving the danger signal from the danger sensor to detect the danger, and the distance between the risk factor and the child is less than a set value, and includes a server for notifying the danger if the danger is a dangerous state. Can be.

In addition, the proximity alarm device according to an embodiment of the present invention is attached to the body of the child, may further include a proximity sensor that can measure the distance between the child and the floor. Proximity sensors are a means of determining whether a child's body is upside down. Whether the body is upside down can affect safety in infants. For example, it is possible for a baby to lie down on a bed or if the infant's body is upside down, it may fall out of bed. In addition, infants who do not have a good throat may be at risk of suffocation.

The position signal transmitter and the position signal receiver may be ultrasonic transmitters and ultrasonic receivers, respectively.

In accordance with an aspect of the present invention, an access warning method includes transmitting a radio signal from a location signal transmitter attached to a child, and transmitting the location signal transmitter from a location signal receiver attached to the risk factors. Receiving a wireless signal of the device and measuring a distance from the location signal transmitter; detecting whether the danger sensor is in a dangerous state or a safe state; and transmitting a signal of danger; Receives the distance value transmitted from the signal receiver, receives the danger signal from the danger detector, the distance between the risk factor and the child is less than the set value, the danger if the danger is a dangerous state It may include the step of notifying.

In addition, the proximity sensor attached to the body of the child may further comprise the step of measuring the distance between the child and the floor surface, and transmitting to the server.

The position signal transmitter and the position signal receiver may be ultrasonic transmitters and ultrasonic receivers, respectively.

The approach alarm device and the approach alarm method according to the present invention have an advantage in that the alarm can be notified only when it is absolutely necessary to the guardian by sounding an alarm in consideration of whether the danger is a safe state or a dangerous state.

1 is a block diagram of an access warning apparatus according to an embodiment of the present invention.
FIG. 2 is a block diagram of a portion of the access alert device shown in FIG. 1.
3 is a block diagram of the server shown in FIG. 1.
4 is a flowchart of a method for approaching alarm according to an embodiment of the present invention.

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

Referring to FIG. 1, an access warning apparatus according to an embodiment of the present invention may include a position signal transmitter 10 attached to a child, a position signal receiver 20 attached to dangerous elements, and whether a dangerous element is in a dangerous state. A risk detector 30 to detect the danger, a proximity sensor 40 attached to the child, the server 50 to inform the user of danger if the child is dangerous, and a guardian who can connect to the server 50 through a wireless communication network The terminal 60 is provided.

Hazards are devices that can be dangerous if a child touches them in the home, or a dangerous place if a child approaches. Examples of the device include an iron, a fan, a microwave oven, a gas stove, an electric stove, an electric mixer, a washing machine, and the like.

The position signal transmitter 10 is attached to a child. The position signal transmitter 10 may be installed in a bracelet, a necklace, etc. worn by a child. In the present embodiment, the position signal transmitter 10 uses an ultrasonic transmitter, but is not limited thereto. Various methods, such as an infrared transmitter and an RFID tag, can be used.

The position signal receiver 20 is attached to the hazard. Referring to FIG. 2, in the present embodiment, the position signal receiver 20 includes an ultrasonic receiver 21, a controller 22, and a wireless transmitter 23. When the impulse transmitting circuit of the ultrasonic transmitter operates, the ultrasonic transmitter transmits a pulse, and the ultrasonic receiver 21 receives the signal and outputs a signal. The signal output from the ultrasonic receiver 21 is transmitted to the controller 22 connected to the ultrasonic receiver 21. The controller 22 measures the distance value between the child and the hazard. The wireless transmitter 23 transmits the distance value between the child and the risk factor measured by the controller 22 to the server 50. The wireless transmitter 23 may use a Bluetooth communicator, a Zigbee communicator, or the like.

The danger detector 30 is a device for determining whether a hazard is a dangerous state or a safe state. For example, electric stoves, electric irons, stoves, etc., when turned on is very dangerous because children may be burned when approaching. But if it's off, it's not very dangerous. In the case of electronic products, the danger detector 30 may be a device that detects whether power is turned on. When the electronic product is turned on, a signal indicating that the electronic product is turned on may be transmitted to the server 50 through a wireless transmitter such as a Bluetooth device installed in the electronic product. In this case, the risk controller 30 may be a controller of the electronic product that determines whether the Bluetooth device of the electronic product and the power of the electronic product are turned on.

In the case of the veranda, it is safe if the window between the veranda and the living room is closed, and it is very dangerous if it is open. In the case of the veranda, a sensor installed in the window and a wireless transmitter for transmitting a signal detected by the sensor may be a danger detector 30 to determine whether the window is closed.

The risk factor that determines whether the risk is determined according to the operation or the like is provided with both the danger detector 30 and the position signal receiver 20, and always installs only the position signal receiver 20 for the danger that is dangerous to children. Can detect whether or not.

Proximity sensor 40 is installed in front of or behind the top worn by the child. Proximity sensor 40 is installed to the infant in the step of starting to turn over. The proximity sensor 40 is for determining a change in posture of the infant. For example, after the proximity sensor 40 is installed at the back of the infant's upper body and the infant is laid on the back of the infant, the proximity sensor 40 changes the posture of the infant when the infant inverts the body. You can check. Checking the infant's posture can be used to detect the risk of choking of the infant and the risk of the infant falling off the bed. The proximity sensor 40 transmits this attitude information data to the server 50 via a wireless communication means.

The server 50 accepts and accumulates distance values between the child and the hazard from the radio transmitter. In addition, a danger signal is received from the danger sensor 30, and the posture information signal is received and accumulated through a wireless communication means connected to the proximity sensor 40. When there is a request from the guardian terminal 60, the server 50 provides the guardian terminal 60 with a stored distance value, a danger signal, and posture information data.

Referring to FIG. 3, the server 50 includes a database 51, a communication interface 52, a decoder 53, a controller 54, and an alarm unit 55.

In the database 51, the distance value data table stores distance value data between the child and the hazard received from the radio transmitter 23. The hazard data table stores hazard signal data received from the hazard detector 30. The posture information data table stores posture information data.

The communication interface 52 allows the server 50 to access the Internet, thereby allowing the server 50 to send and receive data to and from the guardian terminal 60.

The decoder 53 decodes the data received through the communication interface 52 and provides it to the controller 54.

The controller 54 stores the decoded data in the database 51. If the decoded data is distance value data, the decoded data is stored in the distance value data table. If the decoded data is danger signal data, the decoded data is stored in the danger data table.

In addition, the controller 54 continuously determines whether the child is in a dangerous state, based on the distance value data and the danger signal data stored in the database 51.

When the controller 54 determines that the child is in a dangerous state, the controller 54 operates the alarm unit 55. The alarm unit 55 repeatedly plays a sound informing of danger through the speaker and makes a rescue request to the guardian. At the same time, an alarm message is sent to the telephone number of the parental terminal 60 stored in the database 51.

The guardian terminal 60 may be a smartphone as a terminal used by a guardian of a child. The guardian can check the distance value and the danger signal data stored in the server 50 through the guardian terminal 60. The guardian can listen to the rescue request through the alarm message of the smartphone at the same time listen to the rescue request through the alarm unit 55 of the server 50 in a dangerous situation. The alarm message may be in the form of playing a sound notifying the danger through the speaker of the smartphone and the character indicating a dangerous situation on the display unit of the smartphone flashes.

Hereinafter, the approach warning method will be described in detail with reference to FIG. 4.

The position signal transmitter 10 transmits an ultrasonic signal (S10). The position signal receiver 20 receiving the transmitted ultrasound signal calculates a distance value between the child and the risk factor in the controller 22 (S20). The position signal receiver 20 transmits the calculated distance value through the wireless transmitter 23 to the server 50 (S21).

The danger detector 30 determines whether the hazard is a dangerous state, and transmits a danger signal to the server 50 (S30).

The server 50 receives the distance value between the child and the hazard from the radio transmitter 23 and stores it in the database 51. In addition, a danger signal is received from the danger detector 30 and stored. In the case of an infant, the posture information signal is received and accumulated through a wireless communication means connected to the proximity sensor 40.

The server 50 compares the distance value data stored in the database 51 with a predetermined value and determines whether the distance is close to the predetermined value (S40). If it is determined in step S40 that the distance is greater than the predetermined value, the child is determined to be safe and continue to receive the distance value and the danger signal.

If it is determined in step S40 that the distance value is less than the predetermined value, it is determined whether the dangerous factor close to the distance is a dangerous state (S41). If it is determined in step S41 that the hazard close to the distance is safe, the child determines that it is safe and continues to receive the distance value and the danger signal.

If it is determined in step S41 that the dangerous element is a dangerous state, it is determined that the child is dangerous, and operates the alarm unit 55 of the server 50. The alarm unit 55 repeatedly plays a sound informing of danger through the speaker and makes a rescue request to the guardian. At the same time, the alarm message is transmitted to the telephone number of the parental terminal 60 stored in the database 51 through the communication interface 52 of the server 50 (S42).

If the user does not press the 'cancel' button of the server 50 or the guardian terminal 60 in the rescue request situation, the alarm continues to operate. When the child is rescued from the dangerous state and the 'cancel' button is pressed, the alarm stops working, and the server 50 receives the distance value and the danger signal again and stores it.

Therefore, it should be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

10: position signal transmitter 20: position signal receiver
21: ultrasonic receiver 22: controller
23: wireless transmitter 30: danger detector
40: proximity sensor 50: server
51: database 52: communication interface
53: decoder 54: control unit
55: alarm unit 60: parental terminal

Claims (6)

In order to prevent a safety accident, an access warning device for notifying children of approaching hazards,
A location signal transmitter attached to the child and wirelessly transmitting a location signal;
A location signal receiver attached to the hazards, the location signal receiver receiving a radio signal of the location signal transmitter and measuring a distance from the location signal transmitter;
A danger detector for detecting whether the hazard is a dangerous state or a safe state and transmitting a danger signal;
When the distance value is received from the position signal receiver and the danger signal is received from the danger detector, the distance value between the risk factor and the child is closer to the set value, and the danger factor is in a dangerous state. Access warning device comprising a server for notifying of the danger. The method of claim 1,
And a proximity sensor attached to the body of the child, the proximity sensor capable of measuring a distance between the child and the bottom surface. The method of claim 1,
And said position signal transmitter and said position signal receiver comprise an ultrasonic transmitter and an ultrasonic receiver, respectively. In order to prevent a safety accident, the approach alarm method for notifying children of approaching hazards,
Transmitting a radio signal at a position signal transmitter attached to the child;
Receiving a radio signal of the position signal transmitter at a position signal receiver attached to the risk factors and measuring a distance to the position signal transmitter;
A risk detector detecting whether the hazard is a dangerous state or a safe state, and transmitting a danger signal;
The server receives the distance value transmitted from the position signal receiver and receives the danger signal from the danger detector so that the distance value between the risk factor and the child is closer to the set value, and the risk factor is reduced. Access warning method comprising the step of informing if there is a dangerous state of danger. 5. The method of claim 4,
And a proximity sensor attached to the body of the child measures the distance between the child and the floor surface and transmits the measured distance to the server. 5. The method of claim 4,
And said position signal transmitter and said position signal receiver comprise an ultrasonic transmitter and an ultrasonic receiver, respectively.

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