KR20000044464A - Device for preventing loss of cellular phone - Google Patents

Device for preventing loss of cellular phone Download PDF

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Publication number
KR20000044464A
KR20000044464A KR1019980060962A KR19980060962A KR20000044464A KR 20000044464 A KR20000044464 A KR 20000044464A KR 1019980060962 A KR1019980060962 A KR 1019980060962A KR 19980060962 A KR19980060962 A KR 19980060962A KR 20000044464 A KR20000044464 A KR 20000044464A
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South Korea
Prior art keywords
mobile phone
signal
cellular phone
alarm sound
level
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KR1019980060962A
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Korean (ko)
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이용진
전기상
김한식
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윤종용
삼성전자 주식회사
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Priority to KR1019980060962A priority Critical patent/KR20000044464A/en
Publication of KR20000044464A publication Critical patent/KR20000044464A/en

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    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18Status alarms
    • G08B21/24Reminder alarms, e.g. anti-loss alarms
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/30Monitoring; Testing of propagation channels
    • H04B17/309Measuring or estimating channel quality parameters
    • H04B17/318Received signal strength

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Quality & Reliability (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • General Physics & Mathematics (AREA)
  • Telephone Function (AREA)

Abstract

PURPOSE: A device for preventing a loss of a cellular phone is provided to previously prevent a loss of a cellular phone by outputting an alarm tone when a user and the cellular phone are away over a predetermined distance. CONSTITUTION: A device for preventing a loss of a cellular phone comprises a receiving circuit(220), an amplifier(230), a receiving field intensity detection circuit(240), a level comparator(250), and an alarm tone generator(260). The receiving circuit(220) receives a high frequency signal wireless-transmitted in the cellular phone. The amplifier(230) amplifies a signal output from the receiving circuit. The receiving field intensity detection circuit(240) detects and outputs a field intensity of an amplified signal. The level comparator(250) generates an alarm tone output signal by comparing the receiving field intensity level with a standard voltage level. And the alarm tone generator(260) generates and outputs an alarm tone in an input of the alarm tone output signal.

Description

휴대폰 분실방지장치Mobile Phone Loss Prevention Device

본 발명은 휴대용 무선통신 단말기(이하 휴대폰이라함)에 관한 것으로, 특히 사용자와 휴대폰간의 이격거리가 일정 거리이상일때 경고음을 출력하여 휴대폰의 분실을 사전에 방지하는 휴대폰 분실방지장치에 관한 것이다.The present invention relates to a portable wireless communication terminal (hereinafter referred to as a mobile phone), and more particularly to a mobile phone loss prevention device for preventing the loss of the mobile phone in advance by outputting a warning sound when the separation distance between the user and the mobile phone more than a certain distance.

최근 휴대폰의 보급이 활성화되면서 다수의 이용자가 휴대폰을 이용하고 있으며, 보급속도와 병행하여 휴대폰 분실 사고 또한 증가하고 있는 추세이다. 휴대폰의 분실은 이용자가 휴대폰을 방치해 둔 상태로 현재의 장소를 이탈함으로써 발생하는 것이 일반적이다. 이와 같이 이용자가 휴대폰을 분실하였다면 제3자에 의한 무단사용으로 경제적 피해를 볼 수 있고, 또한 새로운 단말기를 구입해야 하는 등의 여러가지 피해를 입을 수 있기 때문에, 휴대폰의 분실을 사전에 예방할 수 있는 장치 내지는 기능이 필요하다.Recently, as the popularity of mobile phones has been activated, a large number of users are using mobile phones, and the loss of mobile phones is also increasing in parallel with the spreading speed. Loss of the mobile phone is generally caused by leaving the current place with the user leaving the mobile phone. In this way, if the user loses the mobile phone, it can be economically damaged by unauthorized use by a third party and various damages such as the need to purchase a new terminal can prevent the mobile phone from being lost. Or function is required.

따라서 본 발명의 목적은 휴대폰을 포함하는 휴대용 무선통신 단말기로부터 그 이용자가 일정 거리 이상 이격될때 경보음을 출력하여 휴대용 무선통신 단말기의 분실을 사전에 방지할 수 있는 장치를 제공함에 있다.Accordingly, an object of the present invention is to provide an apparatus capable of preventing the loss of a portable wireless communication terminal by outputting an alarm sound when the user is separated from the portable wireless communication terminal including a mobile phone by a predetermined distance or more.

상기 목적을 달성하기 위한 본 발명은 휴대폰 분실방지장치에 있어서,The present invention for achieving the above object is a mobile phone loss prevention device,

상기 휴대폰에 내장되며 규정된 고주파신호를 발진하여 무선송신하는 송신기와,A transmitter which is embedded in the mobile phone and wirelessly transmits a prescribed high frequency signal;

상기 송신기로부터 무선송신되는 신호를 수신하고, 수신된 신호의 전계강도가 기준전압레벨 이하이면 경보음을 출력하는 수신기로 구성함을 특징으로 한다.And receiving a radio signal transmitted from the transmitter, and outputting an alarm sound when the electric field strength of the received signal is equal to or less than a reference voltage level.

도 1은 본 발명의 실시예에 따른 휴대폰 분실방지장치의 시스템 구성 예시도.1 is an exemplary system configuration of a mobile phone loss prevention apparatus according to an embodiment of the present invention.

도 2는 도 1중 휴대폰(100)에 내장되는 송신기(120)의 상세 구성도.FIG. 2 is a detailed configuration diagram of the transmitter 120 embedded in the mobile phone 100 of FIG. 1.

도 3은 도 1중 휴대폰(100)과 이격되는 수신기(200)의 상세 구성도.3 is a detailed configuration diagram of the receiver 200 spaced apart from the mobile phone 100 in FIG.

도 4는 본 발명의 또 다른 실시예에 따른 휴대폰 분실방지장치의 시스템 구성 및 수신기(300) 상세구성도.Figure 4 is a detailed configuration of the system and the receiver 300 of the mobile phone loss prevention device according to another embodiment of the present invention.

이하 첨부한 도면을 참조하여 본 발명의 바람직한 실시예에 따른 동작을 상세히 설명하기로 한다.Hereinafter, an operation according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명의 실시예에 따른 휴대폰 분실방지장치의 시스템 구성 예시도를 도시한 것이다. 도 1을 참조하면, 본 발명의 실시예에 따른 휴대폰 분실방지장치는 크게 송신기(120)와 수신기(200)로 이루어지는데, 상기 송신기(120)는 휴대폰(100)내에 장착되어 전원을 공급받으며, 수신기(200)는 휴대폰(100)과는 별도로 휴대폰 이용자가 휴대(예를 들면 목걸이 형태로 착용, 허리띠에 착용 등)한다. 이러한 경우 송신기(120)는 내부적으로 약속된 주파수를 발생하여 미약전파에 해당하는 파워(power)로 수신기(200)를 향해 무선송신하고, 수신기(200)는 상기 송신기(120)에서 송신하는 미약전파의 세기를 검출하여 일정 레벨 이하일때 경보기를 통해 사용자에게 분실상태를 알리는 경보음을 출력한다.Figure 1 shows an exemplary system configuration of a mobile phone loss prevention apparatus according to an embodiment of the present invention. Referring to Figure 1, the mobile phone loss prevention device according to an embodiment of the present invention consists of a transmitter 120 and a receiver 200, the transmitter 120 is mounted in the mobile phone 100 is supplied with power, The receiver 200 is carried by a mobile phone user separately from the mobile phone 100 (for example, worn in the form of a necklace, worn on a waistband, etc.). In this case, the transmitter 120 internally generates a promised frequency and wirelessly transmits the power to the receiver 200 at a power corresponding to the weak radio wave, and the receiver 200 transmits the weak radio wave transmitted from the transmitter 120. It detects the intensity of the alarm and outputs an alarm sound notifying the user of the loss status through the alarm when below a certain level.

이하 상술한 송신기(120)와 수신기(200)의 상세구성을 살펴보면, 도 2는 도 1중 휴대폰(100)에 내장되는 송신기(120)의 상세 구성도를 도시한 것이며, 도 3은 도 1중 휴대폰(100)과 이격되는 수신기(200)의 상세 구성도를 도시한 것이다.Looking at the detailed configuration of the transmitter 120 and the receiver 200 described above, Figure 2 shows a detailed configuration of the transmitter 120 embedded in the mobile phone 100 of Figure 1, Figure 3 The detailed configuration diagram of the receiver 200 spaced apart from the mobile phone 100 is shown.

우선 도 2에서 수정 발진기(X)는 고정된 고주파신호를 발생하여 출력하고, 파워 앰프(Power Amp:PAMP)(124)는 상기 수정 발진기(X)에서 발생된 고주파신호의 파워를 증폭출력한다. 이와 같이 파워 앰프(PAMP)(124)에서 증폭된 고주파신호는 송신 안테나(130)와의 정합을 위한 정합부(126)와 송신안테나(130)를 통해 공간으로 전파된다. 이와 같이 공간으로 전파된 무선 고주파신호는 수신기(200)의 수신 안테나(210)와 정합부(220)를 통해 앰프(AMP)(230)에서 파워 증폭되어 RSSI(Received Signal Strength Indication:전계강도)검출부(240)에 인가된다. RSSI검출부(240)는 수신 안테나(210)로부터 수신되는 무선신호의 세기 즉, 수신전계강도레벨을 검출하여 비교기(250)로 출력하면, 비교기(250)에서는 수신전계강도레벨과 미리 설정된 기준전압레벨을 비교하여 그에 따른 경보음 출력신호를 출력한다. 경보기(260)는 상기 비교기(250)로부터 입력되는 경보음 출력신호가 액티브상태일때 일정 레벨의 경보음을 출력하여 사용자에게 휴대폰의 분실상태를 예고한다.First, in FIG. 2, the crystal oscillator X generates and outputs a fixed high frequency signal, and the power amplifier 124 amplifies and outputs the power of the high frequency signal generated by the crystal oscillator X. The high frequency signal amplified by the power amplifier 124 is propagated to the space through the matching unit 126 and the transmitting antenna 130 for matching with the transmitting antenna 130. The radio frequency signal propagated in the space is power amplified by the AMP 230 through the receiving antenna 210 and the matching unit 220 of the receiver 200 to receive the RSSI (Received Signal Strength Indication) field Is applied to 240. When the RSSI detector 240 detects the strength of the wireless signal received from the receiving antenna 210, that is, the received electric field strength level, and outputs the received signal to the comparator 250, the comparator 250 receives the received electric field strength level and the preset reference voltage level. Compare and output the alarm sound output signal accordingly. The alarm 260 outputs a predetermined level of alarm sound when the alarm sound output signal input from the comparator 250 is active, thereby notifying the user of the lost state of the mobile phone.

이하 상술한 구성을 갖는 휴대폰 분실방지장치의 동작을 간략히 설명하면, 휴대폰(100)내에 내장되는 송신기(100)에서는 전원공급부(110)로부터 공급되는 전원에 의해 일정 세기의 고주파신호가 지속적으로 발생되어 송신된다. 이러한 고주파신호는 근접해 있는 수신기(200)의 안테나(210)와 정합부(220) 및 앰프(Amp)를 통해 RSSI검출부(240)에 인가된다. 따라서 RSSI검출부(240)에서는 이용자와 휴대폰(100)간의 이격거리에 따른 수신전계강도레벨이 출력되고, 이러한 수신전계강도레벨과 기준전압레벨간의 비교에 의해서 경보음 출력신호가 발생된다.Hereinafter, a brief description of the operation of the mobile phone loss prevention device having the above-described configuration, the high-frequency signal of a certain intensity is continuously generated by the power supplied from the power supply unit 110 in the transmitter 100 embedded in the mobile phone 100 Is sent. The high frequency signal is applied to the RSSI detector 240 through the antenna 210, the matching unit 220, and the amplifier Amp of the receiver 200 in close proximity. Accordingly, the RSSI detection unit 240 outputs a received electric field strength level according to the separation distance between the user and the mobile phone 100, and generates an alarm sound signal by comparing the received electric field strength level with the reference voltage level.

따라서 휴대폰 이용자가 휴대폰을 방치해 둔 장소에서 휴대폰(100)과의 이격 거리가 점점 멀어져 간다면, RSSI검출부(240)에서 출력되는 수신전계강도레벨은 상대적으로 감소하게 되고, 수신전계강도레벨이 기준전압레벨 보다 작게 된다면 경보음 출력신호가 액티브상태가 되어 경보기(260)에서는 일정 레벨의 경보음이 단속적 혹은 지속적으로 출력된다. 이에 이용자는 휴대폰의 방치상태를 인지한 후 방치장소로 되돌아가 휴대폰(100)을 회수할 수 있게 되는 것이다.Therefore, if the distance between the mobile phone user and the mobile phone 100 is far away from the place where the mobile phone is left, the received electric field strength level output from the RSSI detector 240 is relatively reduced, the received electric field strength level is the reference voltage If it is smaller than the level, the alarm sound output signal becomes active, and the alarm 260 outputs a certain level of alarm sound intermittently or continuously. Accordingly, after the user recognizes the neglected state of the cellular phone, the user can return to the neglected place and recover the cellular phone 100.

한편 본 발명의 실시예에서는 휴대폰(100)내에 무선신호를 발진하는 송신기(120)를 별도로 구비하였으나, 도 4에 도시한 바와 같이 휴대폰(100)에서 기지국과의 통화권 설정/이탈에 대한 스위칭동작을 수행하기 위해서 발생하는 고주파신호를 이용하여 휴대폰의 방치상태를 이용자에게 통지할 수도 있다. 즉, 휴대폰(100)에서 발생되는 고주파신호는 수신기(200)의 안테나(210)와 정합부(220) 및 앰프(Amp)를 통해 RSSI검출부(240)에 인가되고, RSSI검출부(240)에서는 이용자와 휴대폰(100)간의 이격거리에 따른 수신전계강도레벨이 출력됨으로써, 휴대폰(100)과의 이격 거리가 멀어질 경우에는 수신전계강도레벨이 기준전압레벨 보다 작게 되어 경보음이 출력된다. 따라서 이용자는 휴대폰의 방치상태를 수신기(200)로부터 통지받을 수 있게 되는 것이다.Meanwhile, in the exemplary embodiment of the present invention, a transmitter 120 for oscillating a radio signal is separately provided in the mobile phone 100. However, as shown in FIG. 4, the mobile phone 100 performs a switching operation for setting / deleting a call right with the base station. The user may be notified of the neglect state of the cellular phone by using a high frequency signal generated to perform. That is, the high frequency signal generated by the mobile phone 100 is applied to the RSSI detector 240 through the antenna 210, the matching unit 220, and the amplifier Amp of the receiver 200, and the user of the RSSI detector 240 is a user. By receiving the received electric field strength level according to the separation distance between the mobile phone 100, when the distance from the mobile phone 100 is far away, the received electric field strength level is smaller than the reference voltage level, the alarm sound is output. Therefore, the user can be notified from the receiver 200 of the neglected state of the mobile phone.

상술한 바와 같이 본 발명은 휴대폰과 그 이용자와의 거리가 일정 거리 이상이면 이용자에게 휴대폰의 방치상태를 통보하여 줌으로써, 휴대폰의 분실확률을 최소화할 수 있는 장점이 있다.As described above, the present invention has an advantage of minimizing the probability of loss of the mobile phone by notifying the user of the state of the mobile phone when the distance between the mobile phone and the user is a predetermined distance or more.

Claims (2)

휴대폰 분실방지장치에 있어서,In the mobile phone loss prevention device, 상기 휴대폰에 내장되며 규정된 고주파신호를 발진하여 무선송신하는 송신기와,A transmitter which is embedded in the mobile phone and wirelessly transmits a prescribed high frequency signal; 상기 송신기로부터 무선송신되는 신호를 수신하고, 수신된 신호의 전계강도가 기준전압레벨 이하이면 경보음을 출력하는 수신기로 구성함을 특징으로 하는 휴대폰 분실방지장치.And a receiver for receiving a radio signal transmitted from the transmitter and outputting an alarm sound when the electric field strength of the received signal is equal to or less than a reference voltage level. 휴대폰 분실방지장치에 있어서,In the mobile phone loss prevention device, 상기 휴대폰에서 무선송신되는 고주파신호를 수신하기 위한 수신부와,A receiver for receiving a high frequency signal wirelessly transmitted from the mobile phone; 상기 수신부에서 출력되는 신호를 증폭하기 위한 증폭부와,An amplifier for amplifying the signal output from the receiver; 증폭된 신호의 전계강도를 검출하여 출력하기 위한 수신전계강도 검출부와,A received field strength detector for detecting and outputting an electric field strength of the amplified signal; 상기 수신전계강도레벨을 기준전압레벨과 비교하여 경보음 출력신호를 발생하기 위한 레벨비교기와,A level comparator for generating an alarm sound output signal by comparing the received electric field strength level with a reference voltage level; 상기 경보음 출력신호 입력시 경보음을 발생하여 출력하는 경보음 발생부로 구성함을 특징으로 하는 휴대폰 분실방지장치.Cell phone loss prevention device, characterized in that configured as an alarm sound generating unit for generating an alarm sound when the alarm sound output signal input.
KR1019980060962A 1998-12-30 1998-12-30 Device for preventing loss of cellular phone KR20000044464A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010074106A (en) * 2001-02-19 2001-08-04 유석준 C.O.P(Conquest Of Phone)
KR20030021656A (en) * 2001-09-07 2003-03-15 주식회사 씨피인터내셔널 Alarming and Surveillance System for Products
CN105957306A (en) * 2016-07-15 2016-09-21 广东小天才科技有限公司 Method and device for using electronic fence function

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010074106A (en) * 2001-02-19 2001-08-04 유석준 C.O.P(Conquest Of Phone)
KR20030021656A (en) * 2001-09-07 2003-03-15 주식회사 씨피인터내셔널 Alarming and Surveillance System for Products
CN105957306A (en) * 2016-07-15 2016-09-21 广东小天才科技有限公司 Method and device for using electronic fence function

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