KR20110120497A - Loss prevention and loss finding device - Google Patents

Loss prevention and loss finding device Download PDF

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Publication number
KR20110120497A
KR20110120497A KR1020100039934A KR20100039934A KR20110120497A KR 20110120497 A KR20110120497 A KR 20110120497A KR 1020100039934 A KR1020100039934 A KR 1020100039934A KR 20100039934 A KR20100039934 A KR 20100039934A KR 20110120497 A KR20110120497 A KR 20110120497A
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KR
South Korea
Prior art keywords
sub
main
terminal
sdn
terminals
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KR1020100039934A
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Korean (ko)
Inventor
김태순
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김태순
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Priority to KR1020100039934A priority Critical patent/KR20110120497A/en
Publication of KR20110120497A publication Critical patent/KR20110120497A/en

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    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G08B21/24—Reminder alarms, e.g. anti-loss alarms
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/008—Alarm setting and unsetting, i.e. arming or disarming of the security system
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/014—Alarm signalling to a central station with two-way communication, e.g. with signalling back
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
    • G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources

Abstract

PURPOSE: Personal belongings loss preventing and finding apparatus and a control method thereof are provided to easily find a product which does not seen like a car key, a cellular phone, and a remote controller. CONSTITUTION: A main terminal(MD) is formed in order to be accepted in the purse of a user or worn in waist and transmits a radio frequency signal in which a main native code is included at every fixed cycle by wireless to a short distance. The main terminal determines whether a terminal is registered or not by deciphering a sub native code from the radio frequency signal which is transmitted from sub terminals(SD1-SDn). The main terminal outputs warning tone when the radio frequency signal in which the sub native code is included is not received from the sub terminal for designated time. A plurality of sub terminals is installed to personal belonging in which user carries. A plurality of sub terminals deciphers a main native code from the received radio frequency signal and determines whether the terminal is registered or not. The radio frequency signal in which a sub native code is included is wirelessly transmitted to the main terminal as an answer signal when the radio frequency signal in which the main native code was included receives.

Description

Loss prevention and finder device with bidirectional communication function and control method {Loss prevention and loss finding device}

The present invention relates to a device for preventing and finding a lost portable device having a bidirectional communication function and a control method thereof, and more particularly, to a main terminal (MD) or a sub terminal (SD) according to a setting mode. It consists of a plurality of sub-terminals that can be stored in a purse, carried around the waist or hanging around the neck and attached or attached to a portable item carried by the user such as a mobile phone or a key ring. Is a mixed loss prevention operation (S4) method described in the operation mode by the command of the main terminal while communicating with the RF signal of 1 ~ 2m or 5 ~ 8m short distance to each other. In operation (S1, S1a) and the detection loss prevention operation (S3) by the wireless link in operation mode for power consumption or other terminal In order to avoid the malfunction caused by the collision with the tile, it switches to the operation mode according to the situation and if it detects that it is separated, it alarms and informs the user of the risk of losing the portable device and prevents the loss of the portable device. If it is attached to a portable device or something you want to find, press the search button of any terminal (any terminal is not a main terminal or a sub terminal) if necessary to execute the search function. Low consumption) When the search mode is executed and the search mode is executed, the search RF signal is amplified and transmitted at a large amplification rate so as to transmit a long distance, so that it is possible to quickly find a long-distance or invisible hand-held that is located at a short distance. Also, to have a relay function in the sub terminal The search function signal is transmitted to other sub-terminals so that the search RF signal is relayed to the sub-terminals at a long distance so that the portable device can be easily found and the device terminal (MD, SDdest) that is being searched for When you receive a command to find), you can easily find it by displaying the alarm sound, vibration, or light with your buzzer or LED that you are looking for yourself, and respond to the calling terminal (MD, SDfinder). Since the response signal is bi-directional communication, it is transmitted to the terminal (MD, SDfinder) that has been sent through the previous process, and the terminal (MD, SDfinder) that has received the response is displayed on its LCD, LED or buzzer. (MD, SDdest) is adjacent to each other, so that it is easy to find things. (When applied to anti-lost, Mia with sub terminal can inform parents by using the above-mentioned actions when finding a parent. Not only can you find it, it's bidirectional, so Mia can easily find her parents and Mia can find her easily). If the home terminal (HD) installed in the house is further configured, the RF signal transmitted from the home terminal is automatically set to the home mode when the sub terminal (SD1 to SDn) is received at the main terminal (MD) to release the loss prevention function. It works in the search mode so that you can easily find invisible items such as car keys, mobile phones, and remote controls in the house.However, when the safe mode is set, users can attend important meetings such as the home, office, or church, The present invention relates to a device for preventing and finding a loss of a portable device having a two-way communication function such that a confirmation sign is output to a vibration or LED display device without an alarm sound even when spaced apart.

Modern people carry a variety of portable goods such as wallets, mobile phones, keys, bags, computers, etc., and as the industrialization progresses, the number of portable goods increases.

However, their loss or invisible problems are not only a nuisance and annoying problem, but also a loss causes a great deal of economic loss and economic activity. For example, if you lose your wallet, you will have to reissue various identification cards or cards stored in your wallet, and other people may use your card illegally to cause economic loss. Loss of handhelds can have a very bad effect on the user, since a large number of lost contact telephone numbers will be lost, which will disrupt economic activities.

In order to solve this problem, a portable loss prevention device for alarming the loss of a portable item is provided.

Conventional portable anti-lost device carries a main terminal that can be received by the user, and the portable terminal is attached to an auxiliary terminal for transmitting a radio wave every predetermined period, if the radio wave transmitted from the secondary terminal of the portable device is not received in the main terminal Is configured to output an alarm sound.

However, the conventional anti-lost device transmits radio waves in only one direction, so when the portable device is separated from the user by a certain distance, the alarm sound is output only from the main terminal, so it is not easy to find the portable device and the user has lost the main terminal. In this case, there was a problem that there is no way to find the main terminal.

In addition, when there are many users in the same place, there are many inconveniences due to radio interference with other terminals mixed with other malfunctions, and miniaturization and power consumption, which are problems of mobile devices, could not be solved.

Therefore, the present invention for solving the above problems

It consists of a main terminal which is stored in a purse essential to the user, carried on the waist or hangs around the neck, and a plurality of sub-terminals used to be attached to or mounted on a portable item such as a mobile phone or a key ring. The main terminal and the sub terminal communicate with each other by 1 ~ 2m or 5 ~ 8m short range RF signal by bi-directional communication, and the loss prevention operation of the sub led by the method of mixed loss prevention (S4) described in the operation mode by the command of the main terminal (S2) and the main prevention loss prevention operation (S1, S1a) and the detection loss prevention operation by the wireless link (S3)) in accordance with the occasional power consumption of the mobile device and when used in combination with other devices in the same place It prevents malfunctions caused by interference or collision with radio waves of the terminal and effectively informs the user of the risk of loss of portable items. If the search function is executed on any terminal that has an alarm operation or an invisible portable device in a short distance, the search function is usually executed in a low power mode, but then amplified and transmitted at a large amplification rate so that the search RF signal can be transmitted at a longer distance. The received terminal can amplify the response at a large amplification rate so that it can quickly find a portable device in a long distance or an invisible portable device in a short distance, and also have a relay function in the terminal to transmit a signal of the terminal to another terminal. It is an object of the present invention to provide a device for preventing and finding a lost portable device having a bidirectional communication function in which a search RF signal is connected and transmitted to a remote terminal remotely located so that the portable device can be easily found.

In addition, when the RF signal from the home terminal is received by the main terminal and the sub terminal, the home terminal is installed in the house, and the main terminal and the sub terminal are automatically set to the common mode of the house. It is easy to find items that are difficult to see, such as keys, mobile phones, and remote controls.When the safety mode is set when the user goes to the bathroom or attends church for a while, the two-way communication function prevents the alarm sound even when the main and sub terminals are separated. An object of the present invention is to provide a device for preventing and finding a lost item.

In addition, the present invention is not fixed to the main terminal and the sub terminal in relation to the main slave, but when using any terminal as the main terminal according to the terminal operation mode setting as a main terminal, when used as a sub terminal as a sub terminal as a home terminal. In the case of having the function of the home terminal or according to the needs of use, the shape and form of the sub terminal, the main terminal and the home terminal can be configured accordingly.

According to an aspect of the present invention,

It is formed to be stored in the user's wallet, hanged around the neck, or worn on the waist, and decides the operation mode according to the situation in order to prevent power consumption or malfunction while communicating with each other by 1 ~ 2m short range RF signal at predetermined intervals. Loss prevention operation (S1, S2) of sub-driven The portable device which manages one of the loss prevention operations (S3) of the wireless link method to the mixed mode loss prevention operation (S4) to switch the operation to the mode corresponding to the command to the sub terminal. A main terminal for outputting an alarm sound and a vibration in order to notify the user of the risk of loss of the portable device when it is determined that the user is separated from the user;

Mixed mode installed or attached to the portable item carried by the user, and transmitted from the main terminal to the commanded operation (loss prevention operation of main and sub-drives (S1, S2) and loss prevention operation of wireless link method (S3)) If it is determined that the portable device is separated from the user by performing the sub-function of the anti-lost operation (S4) of the device, an alarm sound is output so that the user can easily find the portable device at risk of losing the portable device, and at the same time, the LED2 is turned on or the vibration is output. A plurality of sub-terminals; Characterized in that configured.

According to the present invention, a main terminal configured to be stored in a purse carried by a user or carried on a waist, and a plurality of sub-terminals used to be attached to or mounted on a portable item carried by a user, such as a mobile phone or a key ring, The main terminal and the sub terminal perform an efficient operation loss prevention operation in the mixed mode loss prevention operation (S4) while alarming to notify the user of the risk of loss of the portable device when the loss of the portable device is determined, and the portable device is lost or invisible at a short distance. When the search function is executed to find a portable device, the search RF signal can be amplified and transmitted at a large amplification rate so that it can be transmitted over a long distance, so that the portable device can be found at a long distance or an invisible portable device at a short distance. The sub terminals of the main terminal It has the function of a repeater that transmits a call to another sub terminal, so that a search RF signal is also transmitted to sub terminals that are far away, so that it is easy to find a portable item. When the RF signal is received at the main terminal and sub terminal, it is automatically set to the house mode, and the loss prevention function is canceled and operates in the search mode so that it is easy to find invisible items such as car keys, mobile phones, and remote controls in the house. When the user goes to the bathroom for a while or attends church, the safety mode is set, it can be expected that the alarm sound is not output even if the main terminal and the sub terminal is separated.

1 is a perspective view showing a loss prevention and finding device of the present invention.
2 is a view showing another embodiment of the main terminal applied to the present invention.
Figure 3 is a block diagram showing the configuration of the anti-lost device of the present invention.
4 is a diagram illustrating a relay operation of the sub-terminal in the present invention.
5 is a flowchart showing the operation of the present invention.
6 is a flowchart showing the operation of the house mode in the present invention.
7 to 10 is a flow chart showing the operation mode of the main terminal and the sub terminal in the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, FIGS. 1 to 10.

Terms defined in the description of the present invention are defined in consideration of functions in the present invention, and should not be understood as a meaning of limiting the technical components of the present invention.

According to the above drawings,

It is formed to be stored in a user's wallet, hanged around the neck or worn on the waist, and transmits a short-range wireless signal based on an RF signal including a main unique code every predetermined period.

-> Loss prevention operation of the main led that periodically transmits a unique code to the sub-terminals to the sub-terminals and determines that the sub-terminals receiving the reset are cleared over a predetermined period by clearing the timer counter set at a predetermined period (S1). and

-> It reads the sub unique code from the received RF signal and transmits the sub unique code from the sub terminals SD1 to SDn every predetermined period. If the RF signal containing the code is not received, the sub-led loss prevention operation (S2) and determine that the portable device equipped with the sub-terminal (SD1 ~ SDn) is separated from the user and

-> Configure the wireless link with the set PANID to determine whether the wireless link is broken or not, to easily register and connect with the sub terminal, or to monitor the status of the formed wireless link. (Wireless link loss prevention operation (S3))

-> The operation mode is decided according to the situation in order to prevent power consumption or malfunction while communicating 1 ~ 2m short-range RF signal with a combination of advantages and disadvantages of the above three methods (loss prevention operation of main and sub-drives (S1, S2) Efficient mixing loss by preventing one of the wireless link type loss prevention operation (S3) from switching to the mode corresponding to the command of the sub terminal to prevent battery consumption or malfunction due to interference with other terminals in the same place. A main terminal (MD) which is responsible for the prevention operation (S4) and can be expressed when the separation is judged or determined;

It is installed or attached to the portable goods carried by the user, analyzes the various commanded operation modes from the received RF signal transmitted from the main terminal (MD), and performs the corresponding operation mode with the terminal of the main function and the loss prevention function. A plurality of sub-terminals SD1 to SDn outputting an alarm sound and outputting an alarm sound or outputting vibration so that the user can easily find the portable item when it is determined that the portable item is separated from the user; Characterized in that configured.

The main terminal (MD) and the sub-terminal (SD1 ~ SDn) can configure a key for operation or registration, or if necessary spare keys (these keys can be registered and set according to the change of the main program as necessary The function is simply changed to perform various operations. Here, the main search key (4) for the search function when the item is lost is the main mode key (3) for setting registration and operation functions for easy explanation. The main memory 5 for storing the program and various data for functioning, the main controller 10 for performing the stored program for the loss prevention operation, and the main transmitter 7 for wireless transmission and reception. The main receiving unit 8 and the main reading unit 9 are further configured, and the components 5, 10, 7, 8, and 9 are divided for convenience of description, but may be configured in the same package.

These (main terminal and sub-terminal), while performing the loss prevention operation by the mixed mode is determined that there is a risk of loss of portable goods when the separation is determined, and operates the main buzzer 13 to output an alarm sound, the main search When the key 4 is inputted, the search RF signal is transmitted through the main amplifier 6 so that the search RF signal is amplified at a large amplification rate, and the search response from the sub terminals SD1 to SDn is transmitted after the search RF signal is transmitted. When a signal is received, the main controller 10 outputs a message indicating that a portable article exists around the LCD 11 or lights up the LED 1 12, and a main alarm outputs an alarm sound according to the control of the main controller 10. The buzzer 13, the LED1 12 which is turned on under the control of the main controller 10, the LCD 11 which outputs a message indicating an operation state under the control of the main controller 10, and the main controller. Operate under the control of 10 The main body is composed of a main vibrating portion 14, and the components are formed in the form of a card, the main case having a locking portion 2a to be worn on a card body 1 or a waistband that can be stored in a wallet. It is characterized in that it is installed in (2) or can be hanged on the neck, and may have various forms as necessary.

The plurality of sub-terminals SD1 to SDn may have the same structure and form as a program such as a main terminal, but may be simply configured as necessary. Herein, it is referred to as a sub for convenience of description. The sub terminal may have several keys as necessary for registration or operation function setting. Here, for convenience, the sub mode key 23 and the sub search key 24 for the searching function when the other portable device or the main terminal MD are lost are provided. The sub-memory 32 stores the main program and various data of the sub-operating sub-function and the sub-controller 31 performing the stored program for the loss prevention operation. 26), the sub receiver 27 and the sub reader 28 may be configured, and the components 32, 31, 26, 27, and 28 are divided for convenience of description, but may be configured in the same package. .

The sub-memory 32 and the RF signal including the sub-unique code output from the sub-control unit 31 in the normal operation mode are amplified at a small amplification rate so that short-range transmission of 1 to 2 m is performed and output to the sub-transmitter 26. And a sub-amplifier 25 for amplifying the search RF signal output from the sub-control unit 31 at a large amplification rate and outputting it to the sub-transmitter 26 so that a long distance transmission of 70 to 100 m is performed in the search function mode. A sub transmitter 26 for transmitting an RF signal output from the sub amplifier 25 through an antenna, a sub receiver 27 for receiving an RF signal transmitted from the main terminal MD, and the sub receiver 27 Analyzes the command of the main terminal from the RF signal received from the main mode to perform the operation mode commanded from the main, if it is determined that there is a risk of loss of the portable device operates the sub-buzzer 30 to output an alarm sound, the main terminal ( MD) or other sub-terminal The sub-buzzer is operated in a search mode when a search RF signal transmitted from the sub-buzzer is output to output an alarm sound according to the control of the sub-control unit 31 so that the user can easily find a lost portable product. 30 and the LED2 29 which can be represented by light under the control of the sub-control unit 31, and the sub-vibration unit 33 which vibrates under the control of the sub-control unit 31. It is characterized in that it is attached to the surface of the object to be made small and installed in the sub-case 21 is provided with a ring 22 to be mounted on a mobile phone or key ring.

The sub-control unit 31 of the plurality of sub-terminals SD1 to SDn amplifies a search RF signal received from an arbitrary terminal (MDfinder, SDfinder) through the sub-amplifier 25 at a large amplification rate in a search function. Search from any terminal (MDfinder, SDfinder) by retransmitting It acts as a repeater so that the search RF signal can be transmitted to another terminal (MDdest, SDdest) that is located far enough to receive the RF signal. The method may further retransmit a search response signal transmitted from another terminal (MDdest, SDdest) receiving the signal to a terminal (MDfinder, SDfinder).

The sub-control unit 31 of the plurality of sub-terminals SD1 to SDn generates a search RF signal by itself when the sub-search key 24 is input, and amplifies the sub-terminal SD1 different from the main terminal MD. It is characterized in that the user to find the main terminal (MD) or the sub-terminal (SD1 ~ SDn) by transmitting to ~ SDn).

Referring to the operation of the present invention configured as described above is as follows.

According to the present invention, the function of the terminal may be operated as a main terminal or a sub terminal according to a function setting mode, and may be configured by changing the form in various ways as necessary or by limiting only the main terminal function or only the sub terminal function as necessary. have.

Herein, the description is made of the main terminal MD and a plurality of sub terminals SD1 to SDn. The terminal is installed in the card body (1) formed in the form of a card as shown in Figure 1 so that the user can carry in a purse to carry at all times or as shown in Figure 2 Each component is provided in a case 2 having a catching portion 2a formed on the back so that it can be worn, or it can be worn on a neck, or a small sized subcase 21 as shown in FIG. Each component is installed and configured, and the subcase 21 has a ring 22 which can be carried on a cell phone, a key ring or other portable item, or can be carried with the portable item. It is not limited to one type, but can be formed in various shapes depending on the purpose of adding or using a function such as console type or monitor type. All.

 However, the main terminal or home terminal consumes more power than the sub terminal in terms of function execution, so it can be easily operated when the battery is enlarged or necessary functions are added. You can make it different depending on your needs. That is, the terminals can be used to change the function to the main or sub according to the user's needs, but the shape can be modified as much as necessary depending on the situation and purpose.

For convenience, the user can always carry the main terminal (MD) in the body at all times, or the sub-terminals (SD1 ~ SDn) to be carried or attached to the portable to be carried with the portable.

◆ ◆ terminal function settings

The terminal function setting is to register whether the current terminal is to be operated as a main or a sub. The function setting mode is set by the mode key 3 and the main or sub function is selected. Then, the terminal performs the corresponding function.

◆ terminal registration ◆

The main terminal MD and the sub terminals SD1 to SDn are registered with each other, and a plurality of sub terminals SD1 to SDn can be registered to one main terminal MD.

 After setting the main mode key (3) of the terminal acting as the main terminal to the operation registration mode, the main unique code and the PANID are set and saved by the operation of the key by the execution program and the power is turned on. After checking whether there is a conflict with the same PANID, establish a wireless link with the PANID. If there is a radio link of another PANID, the terminal of the main function displays an error or changes to another PANID, finds a non-existent PANID, and informs the user, and configures the radio link with this PANID. Set the operation mode to operate the mode key 23 on the sub terminals. After inputting and storing the corresponding PANID and its own ID, the execution program of the sub function connects to the corresponding PANID to form a link, and then the main terminal and the sub terminal. They communicate with each other in their own memory to store the variables and data needed for the operation.

After the registration process is completed in the main and sub terminals, the main terminals and sub terminals each operate normally by the function set by the program stored in their own memory.

◆ Initial operation of the program ◆

When the main terminal is powered on, it first establishes a wireless link by establishing a wireless link with the set PANID and waits for the sub terminals to be connected. When the power is turned on, the sub-terminals check whether the established main terminal establishes a wireless link with the set PANID. When the establishment of the wireless link is confirmed, the sub-terminals notify the main that they are connected, and periodically receive a command from the main. Perform the corresponding operation.

The main terminal continuously checks its radio status every cycle to determine the most favorable operation mode in the current state and commands the sub terminals to operate in the determined mode. For example, if there is no interference with another terminal owned by another person in the same place, As a mode of reducing consumption, if there is interference, it checks another radio channel without interference and instructs the sub-terminal to transfer the channel number to the transmitting tooth, and then establishes a radio link on the new channel. The sub-terminals disconnect the current link and newly connect to the newly formed link to perform the loss prevention operation with the main terminal, thereby preventing a malfunction due to interference from another terminal owned by the terminal. The main terminal checks the state of the radio. If it is determined that the state of the radio is stabilized, the main terminal instructs the sub-terminals to move the current operation to the low-power mode, and the commanded sub-terminals operate in the low power consumption mode. Switch to reduce power consumption. In other words, if necessary, the main determines the operation mode of the sub-terminals and manages the loss prevention operation without any problem by a necessary command.

◆ ◆ anti-lost operation

Loss prevention operation of the portable device is the operation of the normal operation mode of the main terminal (MD) and the sub-terminal (SD1 ~ SDn).

When the user sets the normal operation mode by operating the main mode key 3 of the main terminal MD, the main controller 10 outputs a message informing the LCD 11 of the current operation state or LED1 12. Lights up so that the user can confirm the mode selection.

The main control unit 10 establishes a wireless link with the PANID set for the loss prevention function according to the execution of the main function program. At this time, the sub-terminals SD1 to SDn check whether the wireless link is established on the PANID set to the main terminal. When a radio link is established by the terminal MD, it is connected thereto. At this time, the main control unit 10 automatically recognizes the connected sub-terminals SD1 to SDn and checks the information of the connected sub-terminals SD1 to SDn, and stores the code or the connection state of the sub in its memory 5. Thereafter, the main controller 10 checks its established wireless state at predetermined intervals and commands a command to periodically execute operations corresponding to the current state to the connected sub-terminals. This state determines the loss prevention operation (S1) of the main-driven loss prevention operation (S1) to reduce power consumption, and the loss prevention operation (S3) which detects the disconnection operation of the radio link as necessary, and the sub Commands the next operation to the terminals SD1 to SDn. The sub-terminals receiving this command perform a corresponding operation at the request of the main terminal (MD) to reduce the malfunction caused by the terminal having multiple people in the same place as the power loss of the portable equipment. After each loss mode is detected by each of the modes, the main control unit 10 of the main terminal (MD) determines that the dangerous state of the portable device, the main buzzer 13 to operate the alarm sound to output While operating the main vibrator 14 to the main terminal (MD) to vibrate.

In addition, the sub-terminals (SD1 ~ SDn) installed in the portable device also determines that the portable device is separated from the user, while operating the sub-buzzer 30 so that the user can easily find the portable device while outputting an alarm sound The LED2 (29) is turned on and the sub-vibrator 33 is operated so that the user can visually and acoustically find the portable object.

The present invention can be expected to the effect that the user can more easily find the handheld because the alarm operation is made in the sub-terminal (SD1 ~ SDn) installed in the portable as well as the main terminal (MD) when the risk of lost portable.

On the other hand, the safety mode can be set by the user's operation of the main mode key (3).

Safe mode is used in places where the user may go to the bathroom for a while, or in places where there is no danger of losing their belongings, such as an office, or where there may be an interruption in meetings when the alarm sounds badly.

When the safety mode is set, even if the main terminal (MD) and the sub-terminal (SD1 ~ SDn) is a predetermined distance apart from the alarm sound is not output, it is possible to run a stable real life.

The present invention further includes a home terminal (HD) fixedly installed in a home and wirelessly transmitting an RF signal including a unique code to a main terminal (MD) or a sub terminal (SD1 to SDn).

When the main terminal (MD) receives the RF signal containing the unique code of the home terminal (HD), it switches to the home mode, suspends the loss prevention operation, and switches to the user's search function mode to wait for the search operation. To perform.

In other words, there is no risk of losing the portable items in the house, so the alarm mode is automatically released, and the search function to retreat makes it easy to find invisible objects such as car keys, remote controls, and mobile phones.

7 to 9 are flowcharts for further explaining the control method of the loss prevention and finding apparatus of the present invention, and various embodiments of the method for controlling the loss preventing and finding apparatus using the flowchart are as follows. same.

◆ Anti-lost operation of the main terminal (S1) ◆

8 illustrates a loss prevention operation of the main terminal led;

Receiving, by the sub-terminals SD1 to SDn, a group transfer message including a unique code transmitted from the main terminal MD at each set period in the alarm mode setting;

The sub-terminals SD1 to SDn are configured to generate an interrupt of the timer counter and an interrupt upon radio reception, and wait to enter a sleep state;

The sub-terminals SD1 to SDn are wirelessly received when an interrupt is generated by a group transfer message sent from the main terminal MD;

The sub-terminals SD1 to SDn receive the received group transfer message when the analyzed group is confirmed and set the radio reception flag to '1';

Determining, by the sub-terminals SD1 to SDn, every predetermined period whether or not an interrupt has been generated by the timer counter;

If the sub-terminal (SD1 ~ SDn) is determined that the separation state is the step of outputting a loss danger alarm operation; Characterized in that configured.

When the user inputs the main mode key 3 configured in the main terminal MD and the alarm mode is set, the main control unit 10 of the main terminal MD transmits an RF signal (group transfer) including a unique code at predetermined intervals. Message) to the sub-terminals SD1 to SDn.

At this time, the sub-terminals SD1 to SDn operate only a timer count for a predetermined time reception detection in order to reduce power consumption, wait for entering into a sleep state, and then receive an RF signal transmitted from the main terminal MD (group transfer message). Is received, an interrupt is generated and the sub-terminals SD1 to SDn wake up from the sleep state and receive and analyze this RF signal (group transfer message). After setting, it goes back to sleep. At this time, the sub terminals SD1 to SDn do not transmit a response signal to the main terminal MD, and the main terminal MD continuously transmits an RF signal (group transfer message) to the sub terminals SD1 to SDn at predetermined intervals. do.

The sub-terminals SD1 to SDn determine whether the reception completion flag is '0' or '1' when the timer count wakes up after a predetermined period and determines whether an RF signal (group transfer message) is received. If the flag is set to '0' and it is determined that the RF signal is not received from the main terminal MD, the main terminal MD sends a signal confirming that it has not received a signal, and thus the response signal of the main terminal MD. If not, it is determined that there is a risk of loss of the portable goods and outputs an alarm sound or LED2 (29) to output the alarm operation or to operate the sub-vibrator 33 to the sub-terminal (SD1 ~ SDn) to vibrate.

When explaining the loss prevention operation (1) of the main terminal led in more detail,

When the user sets the normal operation mode by operating the main mode key 3 of the main terminal MD, the main controller 10 outputs a message informing the LCD 11 of the current operation state or LED1 12. Lights up so that the user can confirm the mode selection. When the alarm mode is set, the control unit 10 of the main terminal outputs a group transfer message including the main unique code at predetermined intervals, and the group identification command and the code are short-range (about 1 to 2 m based on the program setting). , Depending on the mode, the amplification is performed at a small amplification rate to be transmitted to the transmitter 7 so as to enable transmission, and the transmitter 7 transmits the output signal through the antenna at a short distance.

At this time, the sub-terminals SD1 to SDn use the timer counter set to a predetermined time for reception completion check so that an interrupt is generated when a radio signal is received. Wait as much as possible. If the radio call signal periodically transmitted from the main is normally received by the sub terminals SD1 to SDn, an interrupt is generated in the sub terminal, and the sub reader 28 receives the RF signal (group transfer message) received from the sub receiver 27. After reading the unique code and the command included in the) and comparing the group code and the command with the normal code registered in the memory 32, if it matches, the reception completion flag is set to 1 and then goes back to sleep. When the timer count of the sub receiving unit generates an interrupt after a predetermined time, the sub terminal determines whether its reception completion flag is '0' or '1' and is isolated from the main.

If the portable device is out of the RF signal short-range transmission / reception distance, the RF signal (group transfer message) transmitted from the main terminal MD is not received by the sub-terminals SD1 to SDn, and the sub-terminals SD1 to SDn of the sub-terminals SD1 to SDn. If the reception completion flag is set to '0' and it is confirmed that it is '0' when the reception flag is checked after the timer counter interrupt, whether it is isolated and not receiving a signal from the main, the sub-control unit of the sub terminals SD1 to SDn ( 31) sends a signal to the main terminal (MD) that the main terminal (MD) has not received a signal and waits for a response from the main terminal (MD). At this time, the main terminal (MD) sends a signal. However, the sub-controller 31 of the sub-terminals SD1 to SDn is spaced apart from the main terminal MD because the sub-terminal does not receive a response from the main terminal MD because the transmission and response signals do not arrive when they are separated from the main. In order to make it easy for the user to find the portable goods, the sub buzzer 30 is operated so that the alarm sound is output while the LED2 29 is turned on so that the user can find the portable goods visually and acoustically.

In other words, the main terminal-driven loss prevention operation (S1) reduces the power consumption because the control unit sleeps and checks only the reception state periodically by an interrupt, compared to other operation modes. Since it does not transmit, it is effective to reduce the power consumption of terminals that need to be carried in a way to reduce the power consumption consumed during transmission. However, the main terminal does not know the state of the sub-terminal, so it is not known that it is isolated.

◆ Anti-lost operation of the main terminal (S1a) ◆

When setting the alarm mode, the main terminal (MD) sequentially transmits a call signal to the sub terminals (SD1 to SDn) in sequence every set period;

The sub-terminals SD1 to SDn are configured to generate an interrupt of the timer counter and an interrupt upon radio reception, and wait to enter a sleep state;

The sub-terminals SD1 to SDn are wirelessly interrupted by an RF signal sent from the main terminal;

The sub-terminals SD1 to SDn analyze the received message and receive the same if it matches its own code;

Responding to the sub-terminals SD1 to SDn when the message received from the main terminal MD matches the unique code of the analysis;

The main terminal MD determines that the sub terminals SD1 to SDn are in a dangerous state when the response signals are not received from the sub terminals SD1 to SDn, and outputs an alarm operation.

Determining, by the sub-terminals SD1 to SDn, every predetermined period whether or not an interrupt has been generated by the timer counter;

The sub-terminals SD1 to SDn output a warning operation when there is a risk of loss because the main and isolation states are determined.

When the user inputs the main mode key 3 configured in the main terminal MD and the alarm mode is set, the main control unit 10 of the main terminal MD is registered with the sub terminal SD1 to SDn every predetermined period. One sub-terminal (SDs) of the selected sub-terminal transmits the call signal containing the unique code of the sub-terminal and wait for the response of the sub-terminal (SDs).

At this time, the sub-terminals SD1 to SDn wait to enter the sleep state after the timer count is set to generate an interrupt after a predetermined time so that an interrupt is generated during radio reception. When a call signal is transmitted from the main terminal MD and received, an interrupt is generated in the sub terminals, and the control unit of the sub terminal compares the received call signal (message) with its own unique code when the matching signal is matched. Is transmitted to the main terminal (MD). At this time, if the selected sub-terminals (SDs) are separated from the main terminal and do not communicate with each other, the main terminal cannot receive the response from the sub-terminals (SDs), so the sub-terminals (SDs) are separated and output an alarm sound or LED2. An alarm operation is output by turning on (29). The main terminal knows the separation state of the corresponding sub terminal.

On the other hand, when the sub-terminals SD1 to SDn receive the call signal of other sub-terminals including themselves, the sub-terminals receive the call signal of their main after analyzing the call signal of their main, even if it is not their own call signal (message). The sleep flag is set after the completion flag is set to '1'. If the sub-terminal generates an interrupt after a predetermined time, the sub-terminal may check whether the reception completion flag is '1' to determine whether it is received from the main or not to determine whether it is spaced apart from itself. At this time, if the reception completion flag is '0', it sends a message to the main terminal to report that it has not received a signal from the main terminal (MD) and waits for the main response. If there is no response signal from the main terminal (MD), it is separated from the main. It is determined that there is a risk of loss of the portable goods and outputs an alarm sound or lights the LED2 (29) to output the alarm operation.

When explaining the loss prevention operation (S1a) of the main terminal led in more detail,

When the user sets the normal operation mode by operating the main mode key 3 of the main terminal MD, the main controller 10 outputs a message informing the LCD 11 of the current operation state or LED1 12. Lights up so that the user can confirm the mode selection.

When the alarm mode is set, the control unit 10 of the main terminal sequentially selects the sub-terminals every predetermined period, and amplifies the call signal including its unique code about 1 to 2 m and 5 to 8 m depending on the mode. After amplifying at a rate and outputting the signal to the transmitter 7, the transmitter 7 transmits the output signal through the antenna in a short distance and waits for a response from the selected sub terminal.

When the user carries the portable device or the portable device is located within 1 ~ 2m, which is the transmission distance of the RF signal, if the call signal transmitted from the main transmitter 7 is normally received by the optional sub terminal (SDs), the optional sub terminal ( SDs), after a wireless reception interrupt occurs and wakes up from the sleep state, the sub reader 28 reads the unique code and the command included in the RF signal received from the sub receiver 27 and compares it with its own code. If there is a match, a response is transmitted to the main terminal MD.

If the portable device is out of the RF signal short-range transmission / reception distance, such a normal communication is impossible, so the main terminal does not receive a response from the selection sub terminal, and thus the main terminal determines that the selection sub terminal is spaced and outputs an alarm sound. LED2 (29) is turned on to output the alarm operation.

On the other hand, when the sub-terminals SD1 to SDn receive the call signal of other sub-terminals including their own from the main terminal, they receive the main signal after analyzing whether it is the main call signal even if it is not its own call signal. After setting the flag to '1', it enters the sleep state. When the timer generates an interrupt after a predetermined time, the sub-terminals SD1 to SDn may check whether the reception completion flag is '1' to determine whether they are received from the main or not to determine whether they are separated from each other. At this time, if the reception completion flag is '0', it sends a message to the main terminal to report that it has not received a signal from the main terminal (MD) and waits for the main response. If there is no response signal from the main terminal (MD), it is separated from the main. In order to determine that there is a risk of losing the portable goods and to operate the sub-buzzer 30 so that the user can easily find the portable goods, the alarm sound is output while the LED 2 (29) is turned on so that the user can visually and acoustically carry the portable goods. Find it.

The method of preventing the loss of the main terminal led by the main terminal (2) can know the separation state of the sub-terminals and the separation state of the main terminal from the sub, and the power consumption is small, but the number of sub-terminals because the sub-terminals are operated sequentially. If there is a lot of time, it is not easy and there is a risk of the same malfunction when mixed with the terminal of another person in the same place.

◆ Anti-lost operation led by sub terminal (S2) ◆

Fig. 7 is a flowchart showing the loss prevention operation led by the sub terminal.

Transmitting a short-range RF signal including each unique code from the sub-terminals SD1 to SDn to the main terminal MD every predetermined period when setting the alarm mode;

Determining, by the sub-terminals SD1 to SDn, whether a response signal is received from the main terminal MD;

If the sub terminal SD1 to SDn does not receive a response signal from the main terminal MD, a loss danger alarm operation is output, and the main terminal MD does not receive an RF signal from the sub terminals SD1 to SDn. Outputting a loss danger alarm operation if not;

Characterized in that configured.

When the user inputs the main mode key 3 configured in the main terminal MD and the alarm mode is set, the main control unit 10 of the main terminal MD displays the setting state of the alarm mode in the plurality of sub terminals SD1 to SDn. The sub-terminals SD1 to SDn transmit the RF signal containing the unique code to the main terminal MD at short intervals after checking the setting state of the alarm mode.

The main terminal MD receiving the RF signal from the sub terminals SD1 to SDn transmits a corresponding response signal to each of the sub terminals SD1 to SDn, and the sub terminals SD1 to SDn are connected to the main terminal. It is determined whether a response signal is received from MD).

The sub-terminals SD1 to SDn determine that there is a risk of loss of the portable device if a response signal is not received from the main terminal MD, and output an alarm sound or turn on LED2 29 to output an alarm operation. The MD determines that there is a risk of loss of the portable device when the RF signal has not been received from the sub-terminals SD1 to SDn for a predetermined time, and outputs an alarm sound or lights an LED1 (12) to output an alarm operation. It will prevent the risk of loss.

When explaining the loss prevention operation in more detail,

The control unit 31 of the sub terminal outputs an RF signal including a unique code to the main terminal MD at predetermined intervals. The RF signal is output at a short distance (about 1 to 2 m according to the mode, depending on the mode). ~ 8m) amplification at a small amplification rate so as to enable transmission and output to the transmitter 26, and the transmitter 26 transmits the output RF signal in a short distance through an antenna.

When the user carries the portable device or the portable device is located within the transmission distance of the RF signal, the RF signal transmitted from the sub transmitter 26 is normally received by the main terminal MD, and the main reader 9 receives the main signal. The receiver 8 reads the unique code included in the RF signal received, compares whether the sub unique code is a normal unique code registered in the main memory 5, and if there is a match, a corresponding response signal, that is, the main The RF signal including the unique code is transmitted to the sub-terminals SD1 to SDn by short-range wireless transmission through the main amplifier 6 and the main transmitter 7.

Since the sub-terminals SD1 to SDn respond to the RF signal transmitted by the main terminal MD, the sub-terminals SD1 to SDn determine that there is no risk of loss of the portable device. Run

If the portable device is out of the RF signal short range transmission / reception distance, since the RF signal transmitted from the sub terminals SD1 to SDn is not received by the main terminal MD, and the response signal is not transmitted from the main terminal MD. The response signals are not received by the sub terminals SD1 to SDn.

As such, if the RF signal is not received at the main terminal MD for a predetermined time and the response signal is not received at the sub terminals SD1 to SDn, the main controller 10 of the main terminal MD is in danger of losing the portable device. Judging that, by operating the main buzzer 13 to output the alarm sound to operate the main vibrator 14 to vibrate.

In addition, the sub-terminals (SD1 ~ SDn) installed in the portable device also determines that the portable device is separated from the user, while operating the sub-buzzer 30 so that the user can easily find the portable device while outputting an alarm sound The LED2 (29) is turned on so that the user can visually and visually find the portable object.

In this method, the main terminal and the sub-terminal can know the state of each other, so that the alarm can be lost to each other, but there is a disadvantage of power consumption when the sub-terminal is small because the sub-terminal must continuously transmit periodically.

◆ Loss Prevention Operation of Wireless Link Method (S3) ◆

9 is a flowchart showing a radio link type loss detection operation;

Establishing a radio link between the main terminal MD and the sub terminals SD1 to SDn by opening a radio link channel to which the main terminal MD is promised or at an alarm mode setting;

Checking, by the sub-terminals SD1 to SDn every predetermined period, the connection state of the radio link;

When the distance between the main terminal (MD) and the sub terminal (SD1 to SDn) is separated by more than the set distance, and the connection of the wireless link is lost, the alarm operation to notify the risk of loss of the main terminal (MD) and the sub terminal (SD1 to SDn) Outputting;

The main terminal MD always monitors whether the terminal is mixed with a terminal owned by a person other than its own group, or whether the main terminal is being wirelessly interrupted by the terminal, and reconfigures the channel corresponding to the sub terminals in the case of a problem; Characterized in that configured.

In the wireless link method, when the alarm mode is set, the main controller 10 of the main terminal MD opens the wireless link channel through the main transmitter 7 with the PANID registered by the execution program, and the sub terminals SD1 to SDn. The sub-control unit 31 of the subcarrier 31 has a PANID registered therein, and if the main transmitter 7 checks the radio link channel and establishes the radio link between the main terminal MD and the sub terminals SD1 to SDn.

When the wireless link is established, the main terminal (MD) and the sub terminals (SD1 to SDn) check each other through the open radio link channel, and the sub terminals (SD1 to SDn) are in a sleep state to minimize power consumption. If the connection status is checked by periodically checking the connection status between the wireless channels, the main terminal (MD) and the sub terminal (SD1 ~ SDn) are located at a short distance from each other, and it is determined that there is no risk of loss of the portable device. If the wireless link established between the main terminal (MD) and the sub terminal (SD1 to SDn) is disconnected, the main terminal (MD) and the sub terminal (SD1 to SDn) are separated from the set distance by more than a set distance. And the main terminal (MD) and the sub terminal (SD1 ~ SDn) both alarm operation so that the user can prevent the loss of the portable goods formed by interference from other devices If the link is interrupted, it will reconfigure the current radio link with another link.

The wireless link method consumes a lot of power of the main terminal, but when the main terminal (MD) and the sub terminals (SD1 to SDn) are mixed with other people's main terminals and sub terminals, they propagate with other devices. It can be used safely to avoid interference or malfunction of

◆ Mixed Method Loss Prevention Action (S4) ◆

10 is a mixed mode loss prevention operation (S4), the mixing method is the loss prevention operation (S1) (S1a) of the main terminal of the main terminal of Figures 7 to 9 described above, the loss prevention operation (S2) of the sub-terminal ), According to the status and environment of the wireless terminal, the main terminal reduces power consumption when it performs the loss prevention operation and reduces malfunctions when mixed with other devices in the same place. The operation mode is determined so as to be efficient, and selects one of the operation modes S1 to S3 to the sub terminal to be operated by instructing the sub terminals.

This method is to reduce power consumption and to ensure reliable operation from interference of radio waves by mixing with other terminals. Even though the main terminal performs a certain operation mode or a scheduled operation mode, a new operation mode is required depending on the surrounding environment. If it is determined that the new terminal is operated in the new operation mode, the sub terminal commands the sub terminal to change to the operation mode according to the new command of the main terminal to perform the loss prevention operation.

That is, after the alarm mode is set, the main terminal and the sub-terminal are connected to each other, and if the normal operation is performed, the main terminal periodically monitors the state of the radio link and checks the state of the radio. Manage the mode of operation so that it can be operated.

The main terminal periodically checks its own wireless link. For example, if the main terminal is mixed with another terminal in the same place and it detects interference or malfunction, the main terminal is configured by itself. If it is determined that there is a problem by operating the radio link by examining the radio link and the state of the channel, if a new channel is searched and a new clean channel is found, the currently operating channel is changed to the selected channel. And establish a radio link again with a new channel. At this time, the sub-terminals reconnect to the wireless link established with a new wireless channel and perform connection loss prevention with the main terminal. In addition, the main terminal manages the operation mode to achieve the minimum power consumption and efficient operation.

That is, the main terminal-oriented loss prevention operation (S1) or the sub-led loss prevention operation mode (S2) or the wireless link type operation even when the power consumption is performed while the main terminal-oriented loss prevention operation (S1) is performed to reduce the power consumption as much as possible. It acts as a scheduler to change to mode (S3), and if necessary, changes these modes to suit the environment and performs loss prevention operation.

This mixing method reduces the power consumption of the main terminal and the sub terminal as well as prevents interference or malfunctions when they are mixed with other terminals, thereby effectively eliminating the risk of loss caused by the separation of portable equipment. It is to be able to prevent exactly.

◆ find function ◆

Finding function implemented by the present invention,

Setting a search mode by inputting a specific key provided in the main terminal MD or the sub terminals SD1 to SDn;

Transmitting a search signal amplified to allow a long distance transmission from a main terminal (MD) or a sub terminal (SD1 to SDn) to another terminal when setting a search mode;

Receiving a search response signal from another terminal receiving the search signal transmitted from the main terminal MD or the sub terminals SD1 to SDn;

Outputting, by the other terminal receiving the search signal and the main terminal MD or the sub-terminals SD1 to SDn receiving the search response signal, a portable goods search alarm operation; Characterized in that composed of,

In the search mode state, by inputting a specific key provided in the main terminal (MD) or the sub-terminal (SD1 ~ SDn), it is characterized in that the search target terminal can be selected as a whole or individually (the sub-terminal in the main terminal (MD), The sub terminals SD1 to SDn in the sub terminals SD1 to SDn, and the main terminal MD in the sub terminals SD1 to SDn can be found individually or entirely.)

As described above, the search mode is set by the user inputting the search keys 4 and 24 provided in the main terminal MD or the sub terminals SD1 to SDn.

When the search mode is set, the search signal amplified for long distance transmission from the main terminal MD or the sub terminals SD1 to SDn is transmitted to another terminal (where other terminals are other terminals without a specific key input). As the other terminal transmits a search response signal corresponding to the search signal, the search response signal is transmitted to the main terminal MD or the sub terminals SD1 to SDn, and thus the main terminal MD or the sub terminal SD1 to SDn. Using it will be able to find a portable device that is equipped with other terminals.

In the present invention, when performing a search function using any one of the main terminal (MD) or the sub-terminal (SD1 ~ SDn) it can be found by individually selecting any one of the target terminal of the other terminal.

For example, when looking for any one sub terminal SD1 by using the main terminal MD, the main search key 4 is input and then the main mode key 3 is inputted. Since SD1 to SDn) are selected one by one, the user can individually find one desired sub-terminal.

Conversely, when searching for a main terminal or another sub terminal using an arbitrary sub terminal, the main terminal or another sub terminal is selected by inputting the sub search key 24 and then the sub mode key 23. You can do a search.

LCDs can also be installed for individual searching in sub-terminals.

The find operation is used when the user does not recognize the danger of losing the portable item and the portable item is located far from the user, or when the portable item exists in a short distance in the home mode but is not visible.

When a user enters a search key of an arbitrary main terminal (MD) or a sub terminal in order to find a portable item, that is, 1) from main to any sub, 2) from any sub to main, 3) from any sub Sub, 4) has the function to find the whole at the same time from any terminal.

In the following description, it will be described as a search terminal and a search target terminal.

The control unit of the search terminal outputs a group search command RF signal including a group unique code to the amplification unit, and by setting the amplification unit, the amplification unit has a large (high) amplification rate to transmit a long range (about 70-100 m) the search RF signal. Amplify by a long distance transmission through the transmitter.

The search RF signal transmitted from the search terminals MD and SD1 to SDn is received by a receiver of the search target terminals MD and SD1 to SDn that are located at a long distance, and the reading unit is included in the search RF signal received from the receiver. The unique code is read and supplied to the controller.

Since the control unit receives a search RF signal including a unique code registered in the memory, the control unit operates a buzzer so that a user can easily find the portable device so that an alarm sound is output while the LED is turned on and corresponding to the search RF signal. Output the response signal to the amplifier.

The amplifying unit amplifies the response signal output from the control unit at a large amplification rate so as to enable long-distance transmission, and wirelessly transmits it through the transmitting unit. It is received by the receiving unit and supplied to the control unit, and the control unit receives a response signal from the search target terminals (MD, SD1 to SDn) installed in the portable unit, and determines that the portable unit exists near the user. The user can recognize the message by outputting the message. At this time, each sub to be searched can be searched individually or can be configured in mode so that the whole can be searched at the same time.

Accordingly, the user can confirm that the portable item to be found in the vicinity exists so that the user can concentrate on finding the lost portable item and quickly find the portable item.

And, finally, communication between the main terminal, the sub terminal, and the home terminal can be implemented using any one of RF communication, Zigbee communication, and Bluetooth communication method, and any communication method can be used to deviate from the scope of the present invention. Will not be.

MD: Main terminal, SD1 ~ SDn: Sub terminal,
HD: Home Terminal
1: card body, 2; Main Case,
3: main mode key, 4: main search key,
5: main memory, 6: main amplifier,
7: main transmitter, 8: main receiver,
9: main reader, 10: main controller,
21; Subcase, 23: registration key,
24: sub search key, 31: sub control unit,

Claims (17)

It is formed so that it can be stored in a user's wallet or worn on the waist, and wirelessly transmits an RF signal containing a main unique code at predetermined intervals, and is transmitted and received from sub-terminals SD1 to SDn at predetermined intervals. It is determined whether the terminal is registered by reading the sub unique code from the signal, and if the RF signal including the sub unique code is not received from the sub terminals SD1 to SDn for a predetermined time, the sub terminals SD1 to SDn are mounted. A main terminal (MD) for determining that the portable device is separated from the user and outputting an alarm sound;
It is installed or attached to the portable goods carried by the user, and is read from the RF signal received from the main terminal (MD) to determine whether it is a registered terminal and determines whether it is a registered terminal. When received, the RF signal containing the sub unique code is transmitted to the main terminal MD in a short range wirelessly. If the RF signal including the main unique code is not received from the main terminal MD for a predetermined time, A plurality of sub-terminals SD1 to SDn for outputting an alarm sound and turning on LED2 so that the user can easily find the portable item after determining that the portable devices equipped with the sub-terminals SD1 to SDn are separated from the user; Loss prevention and finder of a portable device having a bidirectional communication function, characterized in that consisting of.

The main terminal (MD) and the sub-terminal (SD1 ~ SDn) is characterized in that the main or slave relationship is not fixed, and has a terminal or sub-terminal (SD1 ~ SDn) of the main function according to the function setting. Loss prevention and finding device with a two-way communication function.
The method of claim 1,
The main terminal (MD) is registered with the main mode key (3) for the registration and operation function setting of the sub-terminal (SD1 ~ SDn), the main search key (4) for the search function when the portable item is not visible or lost, The main memory 5 storing the unique codes of the sub-terminals SD1 to SDn, and the RF signal including the main unique code output from the main controller 10 in the normal operation mode are set to 1 ~ 2MD. Even if the amplification at a small amplification rate to the short-range transmission is output to the main transmitter (7) to operate, even if the search function mode is executed, the long-range transmission of the search RF signal output from the main controller 10 to 70 ~ 100MD A main amplifier 6 for amplifying at a large amplification rate and outputting the main amplifier 7 to the main transmitter 7, a main transmitter 7 for transmitting an RF signal output from the main amplifier 6 through an antenna, and a sub-terminal ( Receive RF signal transmitted from SD1 ~ SDn) On the input of the receiving unit 8, the main reading unit 9 which reads the unique code from the RF signal received by the main receiving unit 8 and supplies it to the main control unit 10, and the main mode key 3; When the registration mode is set, the RF signal containing the main unique code is output to the main amplifier 6 to register the main unique code to the sub terminals SD1 to SDn so as to be transmitted to the sub terminals SD1 to SDn. Subsequently, in response thereto, the sub-unique codes included in the RF signals received from the sub-terminals SD1 to SDn are stored and registered in the main memory 5, and the RF terminal registers the RF signal every predetermined period in the normal operation mode. SD1 ~ SDn), and when the RF signal is not received from the sub-terminal (SD1 ~ SDn) for a predetermined time, it is determined that there is a risk of loss of the carry-on and operate the main buzzer 13 to output an alarm sound If the main search key (4) is entered, In order to find the product, the search RF signal is transmitted through the main amplifier 6 so as to be amplified at a large amplification rate. After the search RF signal is transmitted, the search response signal is received from the sub terminals SD1 to SDn. Main control unit 10 for outputting a message that the portable goods exist in the surroundings or lighting the LED1 (12), the main buzzer 13 for outputting an alarm sound according to the control of the main control unit 10, and the main control unit LED1 12 which is turned on under the control of (10), the LCD 11 which outputs a message indicating an operation state under the control of the main controller 10, and operates under the control of the main controller 10 The main case is composed of a vibrating main vibrating portion 14, the components are formed in the form of a card, the main case having a locking portion (2a) to be worn on the card body (1) or waistband that can be stored in a purse (2) two-way communication function characterized in that the installation It prevents personal effects lost or search device.
The method of claim 1, wherein the plurality of sub-terminals (SD1 ~ SDn) is
The sub mode key 23 for registering the sub terminals SD1 to SDn to the main terminal MD or setting the operation function, and the sub search key 24 for searching function when another portable device or the main terminal MD is lost. ), A sub memory 32 for storing unique codes of the registered main terminal MD and other sub terminals SD1 to SDn, and a sub unique code output from the sub controller 31 in the normal operation mode. The RF signal is amplified at a small amplification rate so as to perform short-range transmission of 1 to 2MD and output to the sub transmitter 26, and the long distance transmission of 70 to 100 MD is performed on the search RF signal output from the sub controller 31 in the search function mode. A sub-amplifier 25 for amplifying at a large amplification rate and outputting the amplified signal to the sub-transmitter 26, a sub-transmitter 26 for transmitting an RF signal output from the sub-amplifier 25 through an antenna, and Sub receiving unit 27 for receiving the RF signal transmitted from the terminal (MD) The registration mode is set by inputting the sub reader unit 28, which reads the unique code from the RF signal received by the sub receiver 27, and supplies it to the sub controller 31. Sub-unique codes are included in order to register the sub-unique codes to the main terminal MD after storing and registering the main unique codes included in the RF signal received from the main terminal MD after receiving them in the sub-memory 32. The RF signal is output to the sub amplifier 25 to be transmitted to the main terminal MD. In the normal operation mode, the RF signal is communicated with the main terminal MD every predetermined period, and the main terminal MD for a predetermined time. When no RF signal is received from the device, it is determined that there is a risk of loss of the portable device, and the sub-buzzer 30 is operated to output an alarm sound. When a search RF signal transmitted from the main terminal MD is received, Lost cloak In order to make it easy for the user to operate, the sub buzzer 30 is operated so that an alarm sound is output or the LED2 29 is turned on, and the search response signal for the search RF signal is amplified at a large amplification rate so that the main terminal (MD) Control by the sub-amplifier 25, the sub-buzzer 31 which outputs an alarm sound under the control of the sub-control unit 31, and the control of the sub-control unit 31. LED 2 29 and the sub-vibrator 33 vibrates according to the control of the sub-control unit 31, the components are provided with a ring 22 to be mounted on the mobile phone or key ring Loss prevention and finder device having a two-way communication function, characterized in that the sub-case 21 is installed.
The method of claim 4, wherein the sub-control unit 31 of the plurality of sub-terminals SD1 to SDn uses the sub-amplifier 25 or program setting to receive a search RF signal received from the main terminal MD during the search function. Amplifies at a large amplification rate and retransmits to serve as a repeater so that the search RF signal can be transmitted to another sub-terminal far enough to receive the search RF signal from the main terminal (MD). Loss prevention and finder of a portable device having a bidirectional communication function, characterized by retransmitting a search response signal transmitted from one other sub terminal to a main terminal (MD).
5. The method of claim 4, wherein the sub-control unit 31 of the plurality of sub-terminals SD1 to SDn generates a search RF signal on its own when the sub-search key 24 is input, and amplifies it at a large amplification rate. And other sub-terminals (SD1 to SDn) so that when the user loses the wallet storing the main terminal (MD) or the main terminal (MD) worn on the waist, the main terminal (MD) can be reversed. Loss prevention and finder of a portable device having a two-way communication function, characterized in that.
The method of claim 1,
And a home terminal (HD) fixedly installed in the home and wirelessly transmitting an RF signal including a unique code to a main terminal (MD) or a sub terminal (SD1 to SDn),
When the main terminal (MD) receives the RF signal containing the unique code of the home terminal (HD), it switches to the home mode to suspend the loss prevention operation, and performs the search for the user by selecting the search function Loss prevention and finder device having a bidirectional communication function.
The main control unit 10 of the main terminal MD is set to the safety mode and the alarm mode by operating the main mode key 3,
Safe mode is foreseeable when the user goes to the toilet for a while and is forced to move away from the portable equipment or to attend church where there is no risk of losing the portable equipment, even if the sub terminals SD1 to SDn are separated from the main terminal MD by a predetermined distance. It operates so that the alarm action is not output.
Alarm mode is a loss prevention and finder device having a two-way communication function, characterized in that the operation of the alarm output is normal because the high risk of loss, not the office or home.
Transmitting a short-range RF signal including each unique code from the sub-terminals SD1 to SDn to the main terminal MD every predetermined period when setting the alarm mode;
Determining, by the sub-terminals SD1 to SDn, whether a response signal is received from the main terminal MD;
If the sub terminal SD1 to SDn does not receive a response signal from the main terminal MD, a loss danger alarm operation is output, and the main terminal MD does not receive an RF signal from the sub terminals SD1 to SDn. Outputting a loss danger alarm operation if not;
Control method of the lost and find the portable device having a bidirectional communication function, characterized in that configured to.
Receiving, by the sub-terminals SD1 to SDn, a group transfer message including a unique code transmitted from the main terminal MD at each set period in the alarm mode setting;
The sub-terminals SD1 to SDn are configured to generate an interrupt of the timer counter and an interrupt upon radio reception, and wait to enter a sleep state;
The sub-terminals SD1 to SDn are wirelessly received when an interrupt is generated by a group transfer message sent from the main terminal MD;
The sub-terminals SD1 to SDn receive the received group transfer message when the analyzed group is confirmed and set the radio reception flag to '1';
Determining, by the sub-terminals SD1 to SDn, every predetermined period whether or not an interrupt has been generated by the timer counter;
If the sub-terminal (SD1 ~ SDn) is determined that the separation state is the step of outputting a loss danger alarm operation; Control method of the lost and find the portable device having a bidirectional communication function, characterized in that configured to. When setting the alarm mode, the main terminal (MD) sequentially transmits a call signal to the sub terminals (SD1 to SDn) in sequence every set period;
The sub-terminals SD1 to SDn are configured to generate an interrupt of the timer counter and an interrupt upon radio reception, and wait to enter a sleep state;
The sub-terminals SD1 to SDn are wirelessly interrupted by an RF signal sent from the main terminal;
The sub-terminals SD1 to SDn analyze the received message and receive the same if it matches its own code;
Responding to the sub-terminals SD1 to SDn when the message received from the main terminal MD matches the unique code of the analysis;
The main terminal MD determines that the sub terminals SD1 to SDn are in a dangerous state when the response signals are not received from the sub terminals SD1 to SDn, and outputs an alarm operation.
Determining, by the sub-terminals SD1 to SDn, every predetermined period whether or not an interrupt has been generated by the timer counter;
The sub-terminal (SD1 ~ SDn) is the main and the isolation state is determined, and outputting an alarm operation when there is a risk of loss; control method of the lost and find a portable device having a two-way communication function, characterized in that the configuration.
Receiving, by the sub-terminals SD1 to SDn, an RF signal including a unique code transmitted from the main terminal MD at each set period in the alarm mode setting;
Determining whether an RF signal is received from the main terminal MD at predetermined intervals in the sub terminals SD1 to SDn;
If the RF signal is not received from the main terminal MD every predetermined period, outputting a risk of alarm loss by the sub terminals SD1 to SDn; Control method of the lost and find the portable device having a bidirectional communication function, characterized in that configured to.
Establishing a radio link between the main terminal MD and the sub terminals SD1 to SDn by opening a radio link channel to which the main terminal MD is promised or at an alarm mode setting;
Checking the connection state of the radio link by the main terminal MD and the sub terminals SD1 to SDn every predetermined period;
When the distance between the main terminal (MD) and the sub terminal (SD1 to SDn) is separated by more than the set distance, and the connection of the wireless link is lost, the alarm operation to notify the risk of loss of the main terminal (MD) and the sub terminal (SD1 to SDn) Outputting; Control method of the lost and find the portable device having a bidirectional communication function, characterized in that configured to.
By applying all the techniques of claims 9 to 13, the main terminal (MD) determines the state of the operation mode currently in operation, and if necessary, the sub terminal (SD1 to SDn) sets a new setting movement mode suitable for the current situation. The sub-terminals SD1 to SDn of the sub-terminals can switch their own operation mode from the main to the commanded operation mode, thereby efficiently reducing the power consumption of the main terminal MD and the sub-terminals SD1 to SDn as well as various other methods. In order to prevent interference or malfunctions when they are mixed with human terminals, the main mode is the operation mode of the commands commanded by the terminals according to the commands or according to the commands of the main terminals MD and the sub terminals SD1 to SDn. Portable with bidirectional communication function, characterized in that configured to be operated by switching to the loss prevention operation of the LED (1), the loss prevention operation (2) of the sub-driven, the loss prevention operation (3) of the wireless link method. A control method of preventing loss and finding device.
Setting a search mode by inputting a specific key provided in the main terminal MD or the sub terminals SD1 to SDn;
Transmitting a search signal amplified to allow a long distance transmission from a main terminal (MD) or a sub terminal (SD1 to SDn) to another terminal when setting a search mode;
Receiving a search response signal from another terminal receiving the search signal transmitted from the main terminal MD or the sub terminals SD1 to SDn;
Outputting, by the other terminal receiving the search signal and the main terminal MD or the sub-terminals SD1 to SDn receiving the search response signal, a portable goods search alarm operation; Control method of the lost and find the portable device having a bidirectional communication function, characterized in that configured to. 16. The portable device of claim 15, wherein the terminal to be searched can be individually selected by inputting a specific key provided in the main terminal MD or the sub terminals SD1 to SDn in the search mode state. How to control the prevention and finding device.
The communication method according to any one of claims 1 to 9, wherein the communication between the main terminal, the sub terminal, and the home terminal is implemented by any one of RF communication, Zigbee communication, and Bluetooth communication. Control method of the lost and find the portable device having a bidirectional communication function.


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Cited By (13)

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KR101334271B1 (en) * 2012-03-28 2013-12-02 주식회사 이에스피 Mobile communication terminal for preventing loss of personal belongings and loss prevention apparatus for the mobile communication terminal
KR101404717B1 (en) * 2013-03-05 2014-06-10 주식회사 타이드 the method and system safety management of preschooler
KR101453717B1 (en) * 2014-05-01 2014-10-23 원종만 tracking Device and its setting method
KR200475311Y1 (en) * 2014-04-15 2014-11-27 원종만 tracking device
CN104217535A (en) * 2013-05-30 2014-12-17 英业达科技有限公司 Location aid, anti-loss electronic system and operation method thereof
KR101521905B1 (en) * 2013-08-26 2015-05-28 이진영 System, apparatus and method for notifying location of object
KR101533538B1 (en) * 2014-11-28 2015-07-02 김경원 terminal equipment having function of loss-prevention
KR20190000243A (en) 2017-06-22 2019-01-02 전광규 Smart keeper with real-time bidirectional communication function with smart phone and its operation method
US10278023B2 (en) 2016-09-20 2019-04-30 Qualcomm Incorporated Wireless device locating
KR101988032B1 (en) * 2018-11-09 2019-06-20 주식회사 솔트 The safety support system for worker at railroad
KR101990909B1 (en) * 2018-11-15 2019-06-20 에이티온 주식회사 System for asset management with low power consumption
CN111489535A (en) * 2020-03-30 2020-08-04 Oppo广东移动通信有限公司 Alarm control method and related product
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Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101334271B1 (en) * 2012-03-28 2013-12-02 주식회사 이에스피 Mobile communication terminal for preventing loss of personal belongings and loss prevention apparatus for the mobile communication terminal
KR101404717B1 (en) * 2013-03-05 2014-06-10 주식회사 타이드 the method and system safety management of preschooler
CN104217535B (en) * 2013-05-30 2016-08-10 英业达科技有限公司 Device, anti-wander away electronic system and its operational approach are sought by association
CN104217535A (en) * 2013-05-30 2014-12-17 英业达科技有限公司 Location aid, anti-loss electronic system and operation method thereof
KR101521905B1 (en) * 2013-08-26 2015-05-28 이진영 System, apparatus and method for notifying location of object
WO2015159999A1 (en) * 2014-04-15 2015-10-22 원종만 Apparatus for preventing loss of article
KR200475311Y1 (en) * 2014-04-15 2014-11-27 원종만 tracking device
WO2015167268A1 (en) * 2014-05-01 2015-11-05 원종만 Article loss prevention device and method for configuring article loss prevention device
KR101453717B1 (en) * 2014-05-01 2014-10-23 원종만 tracking Device and its setting method
KR101533538B1 (en) * 2014-11-28 2015-07-02 김경원 terminal equipment having function of loss-prevention
US10278023B2 (en) 2016-09-20 2019-04-30 Qualcomm Incorporated Wireless device locating
KR20190000243A (en) 2017-06-22 2019-01-02 전광규 Smart keeper with real-time bidirectional communication function with smart phone and its operation method
KR101988032B1 (en) * 2018-11-09 2019-06-20 주식회사 솔트 The safety support system for worker at railroad
KR101990909B1 (en) * 2018-11-15 2019-06-20 에이티온 주식회사 System for asset management with low power consumption
CN111489535A (en) * 2020-03-30 2020-08-04 Oppo广东移动通信有限公司 Alarm control method and related product
CN111489535B (en) * 2020-03-30 2022-02-15 Oppo广东移动通信有限公司 Alarm control method and related product
WO2022114911A1 (en) * 2020-11-30 2022-06-02 주식회사 아모센스 Smart tracker

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