KR102566969B1 - Wireless tag apparatus - Google Patents

Abstract

A mobile terminal that can be charged in the short-range communication process receives a battery, a wireless communication unit supporting short-range wireless communication, and a wireless charging start signal to support wireless charging of the battery, and when the instantaneous charging amount of wireless charging falls below a certain standard, the wireless terminal A wireless charging unit that stops charging, a wireless communication pre-processing hardware unit that recognizes the wireless tag device through the short-range wireless communication and first generates the wireless charging start signal and then generates an activation signal, and operates in an active mode or an inactive mode, and a wireless communication processor converting an operation mode into the active mode based on the activation signal and exchanging tag data with the radio tag device.

Description

Mobile terminal that can be charged in the process of short-distance communication {WIRELESS TAG APPARATUS}

The present invention relates to a mobile terminal that can be charged in a short-distance communication process, and a short-distance communication process for performing wireless charging by first generating a wireless charging start signal and then generating an activation signal by recognizing a wireless tag device through short-range wireless communication. It relates to a mobile terminal that can be charged in.

Wireless power transfer technology began with Ampere's law and Faraday's law in 1820, and wireless power transfer technology using RF (Radio Frequency), first experimented by Nikola Tesla more than 100 years ago, was developed in 2007 by MIT Physics Professor Marin Solzacic. A research team led by M.D. announced the results of research on supplying power to a lamp wirelessly from a distance of 2m using a new wireless power transmission technology called magnetic resonance, drawing attention from industry and academia. Research and development are being conducted to wirelessly supply energy to various electrical and electronic devices using

Recently, thanks to the remarkable development of information and communication technology and semiconductor technology, the use of portable terminals is rapidly increasing. In particular, with the popularization of smartphones, the amount of power consumed by individuals has increased significantly, allowing users to freely use batteries anytime, anywhere without wired chargers. User demand for a technology that can charge the battery has increased, and interest in wireless power transmission technology that can meet this has also increased.

Korean Patent Registration No. 2013-0111581 is a magnet; and a charging terminal including a transmitting coil for transmitting a magnetic field to the charged terminal, and a receiving coil receiving a magnetic field from the transmitting coil and generating a current, wherein the wireless charging system includes: The charging terminal is characterized in that it uses an electromagnet that generates magnetic flux to recognize a wireless charging mode from when the charging terminal detects a state in which the charging terminal is disposed adjacent to the terminal to be charged until the start of the wireless charging.

Korean Registered Patent No. 2013-0111581 (2013.09.17)

An embodiment of the present invention is to provide a mobile terminal capable of charging in a short-range communication process in which a wireless charging start signal is first generated by recognizing a wireless tag device through short-range wireless communication and an activation signal is generated next to perform wireless charging. .

An embodiment of the present invention is a mobile terminal that can be charged in a short-distance communication process that displays tag data transmission/reception on the display or battery charging progress during extended battery wireless charging time even after transmission/reception of tag data. want to provide

According to an embodiment of the present invention, a mobile terminal capable of being charged in a short-distance communication process receives a battery, a wireless communication unit supporting short-range wireless communication, and a wireless charging start signal to support wireless charging of the battery and instantaneous charging amount of the wireless charging. A wireless charging unit that stops the wireless charging when the value falls below a specific standard, a wireless communication preprocessing hardware unit that recognizes a wireless tag device through the short-range wireless communication and first generates the wireless charging start signal and then generates an activation signal, and activates the wireless charging unit. and a wireless communication processor operating in a mode or inactive mode, converting an operating mode into the active mode based on the activation signal, and exchanging tag data with the radio tag device.

The wireless charging unit may display a progress of the wireless charging on a display before transmitting and receiving the tag data. Even after transmitting and receiving the tag data, the wireless charging unit may display on the display that the tag data is being transmitted and received or that the battery is being charged during the extended wireless charging time of the battery.

The wireless charging unit may calculate an extended wireless charging time based on a remaining amount of the battery after transmitting and receiving the tag data and display the extended wireless charging time on a display.

The wireless charging unit may calculate the minimum value of the extended wireless charging time by the following equation.

[mathematical expression]

Tmin = ( a(w) * e + b(w) ) / e / d(w)

The Tmin is the minimum value of the wireless charging extension time

a(w) is the amount of power consumed when the mobile terminal communicates once

b(w) is the daily amount of power consumed by the mobile terminal in an idle state

delete

d(w) is the amount of charging power according to the contact time (s) of the mobile terminal

e is the daily average number of contacts of the mobile terminal

When the activation signal is generated, the wireless communication pre-processing hardware unit stores the tag data received from the tag in a tag buffer and polls whether or not the wireless communication processing unit is converted to the active mode to determine the tag data in the tag buffer. can provide.

The wireless communication processor may convert the operation mode into the inactive mode when the tag data is not transmitted or received for a specific time during the wireless communication process. The wireless communication processing unit may determine the specific time by searching an active time reference table based on the type of tag data.

The disclosed technology may have the following effects. However, it does not mean that a specific embodiment must include all of the following effects or only the following effects, so it should not be understood that the scope of rights of the disclosed technology is limited thereby.

In a short-distance communication process according to an embodiment of the present invention, a mobile terminal capable of charging recognizes a wireless tag device through short-range wireless communication to generate a wireless charging start signal first and then generate an activation signal to perform wireless charging.

In the short-range communication process according to an embodiment of the present invention, even after transmitting and receiving tag data, the mobile terminal displays tag data transmission and reception in progress or displays battery charging in progress during the extended battery wireless charging time. do.

1 is a diagram showing a radio tag system according to an embodiment of the present invention.
FIG. 2 is a block diagram illustrating functions of a rechargeable mobile terminal in the short-distance communication process of FIG. 1 .
FIG. 3 is a flowchart illustrating an operation method of the radio tag system in FIG. 1. Referring to FIG.

Since the description of the present invention is only an embodiment for structural or functional description, the scope of the present invention should not be construed as being limited by the embodiments described in the text. That is, since the embodiment can be changed in various ways and can have various forms, it should be understood that the scope of the present invention includes equivalents capable of realizing the technical idea. In addition, since the object or effect presented in the present invention does not mean that a specific embodiment should include all of them or only such effects, the scope of the present invention should not be construed as being limited thereto.

Meanwhile, the meaning of terms described in this application should be understood as follows.

Terms such as "first" and "second" are used to distinguish one component from another, and the scope of rights should not be limited by these terms. For example, a first element may be termed a second element, and similarly, a second element may be termed a first element.

It should be understood that when an element is referred to as being “connected” to another element, it may be directly connected to the other element, but other elements may exist in the middle. On the other hand, when an element is referred to as being "directly connected" to another element, it should be understood that no intervening elements exist. Meanwhile, other expressions describing the relationship between components, such as “between” and “immediately between” or “adjacent to” and “directly adjacent to” should be interpreted similarly.

Expressions in the singular number should be understood to include plural expressions unless the context clearly dictates otherwise, and terms such as “comprise” or “having” refer to an embodied feature, number, step, operation, component, part, or these. It should be understood that it is intended to indicate that a combination exists, and does not preclude the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

In each step, the identification code (eg, a, b, c, etc.) is used for convenience of explanation, and the identification code does not describe the order of each step, and each step clearly follows a specific order in context. Unless otherwise specified, it may occur in a different order than specified. That is, each step may occur in the same order as specified, may be performed substantially simultaneously, or may be performed in the reverse order.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs, unless defined otherwise. Terms defined in commonly used dictionaries should be interpreted as consistent with meanings in the context of the related art, and cannot be interpreted as having ideal or excessively formal meanings unless explicitly defined in the present application.

1 is a diagram illustrating a wireless charging system for a mobile terminal capable of being charged in a short-distance communication process according to an embodiment of the present invention.

Referring to FIG. 1 , a wireless charging system 100 for a mobile terminal capable of being charged in a short-distance communication process may include a radio tag device 110 , a mobile terminal 130 and a server 150 .

The radio tag device 110 transmits tag data stored therein as a radio signal. In an embodiment, the radio tagging device 110 may receive a request for tag data from the mobile terminal 130 and transmit tag data. The radio tag device 110 may perform Near Field Communication (NFC) communication with the mobile terminal 130 .

The radio tag device 110 may be operated after being charged by wire or may be operated by battery charging. Meanwhile, the radio tag device 110 may include a battery even though it may be charged by wire.

The radio tag device 110 may be implemented as a separate and independent device, or may be implemented by being incorporated into a smartphone, laptop, or portable computer in another way, but is not limited thereto, and may be implemented in various devices such as wearable devices. can be implemented

The mobile terminal 130 is a device capable of transmitting and receiving tag data with the radio tag device 110 as a wireless signal, and may be implemented as, for example, a smart phone. In one embodiment, the mobile terminal 130 may transmit and receive radio signals through short-range communication.

The server 150 is a computing device connected to the mobile terminal 130 and may store unique identification information about the radio tag device 110 that can be connected to the mobile terminal 130 . For example, unique identification information about the radio tag device 110 may be implemented as a medium access control (MAC) address. In one embodiment, the server 150 may be connected to the mobile terminal 130 and the wireless Internet, and the wireless Internet may be implemented through Wi-Fi communication or cellular communication.

The server 150 may calculate a required charging time for one time of the radio tag device 110 in the wireless charging process of the mobile terminal 130 and transmit it to the mobile terminal 130 . In one embodiment, the required charging time for one time may be calculated based on unique identification information about the radio tag device 110.

FIG. 2 is a block diagram illustrating functions of a rechargeable mobile terminal in the short-distance communication process of FIG. 1 .

Referring to FIG. 2 , the radio tag device 110 includes a wireless communication unit 210, a memory 220, a wireless communication preprocessing hardware unit 230, a wireless communication processing unit 240, a battery management unit 250, and a charging unit 260. and a battery 270 .

The wireless communication unit 210 supports near field communication (NFC). In one embodiment, the wireless communication unit 210 may support short-range wireless communication with the mobile terminal 130 and generate a wake-up signal when the strength of the wireless signal is greater than or equal to a specific threshold.

The memory 220 may be used to temporarily store radio signals for signal processing, and in one embodiment, is used to process radio signals (ie, tag signals) between the radio tag 110 and the mobile terminal 130. It can be. More specifically, the memory 220 may include a tag buffer capable of storing a tag signal, and may provide a storage space required before or after being processed by the wireless communication processing unit 240 in the form of a tag buffer. there is.

The wireless communication preprocessing hardware unit 230 recognizes the wireless tag device 110 through short-range wireless communication and generates a wireless charging start signal first and an activation signal next. This is to first perform wireless charging before activation, since it takes a considerable amount of time to activate the radio tag device 110.

The wireless communication pre-processing hardware unit 230 pre-processes the radio signal according to reception of the wake-up signal in order to minimize power consumption of the wireless communication processing unit 240 that can be operated in the inactive mode. The wireless communication pre-processing hardware unit 230 may provide a medium access control (MAC) address to the mobile terminal 130 upon reception of the wakeup signal, and the mobile terminal 130 may provide the mobile terminal 130 with the server 150 as required once. You can receive the charging time.

The wireless communication preprocessing hardware unit 230 may wait for determining whether the mobile terminal 130 is a pre-registered tag based on the MAC address. In one embodiment, a pre-registered tag may be stored in the mobile terminal 130, and in another embodiment, a pre-registered tag may be stored in the server 150 connected to the mobile terminal 130. . That is, the wireless communication preprocessing hardware unit 230 may provide a MAC address to the mobile terminal 130, and the mobile terminal 130 may determine whether the tag is pre-registered based on the MAC address. When it is confirmed that the MAC address is registered, the wireless communication preprocessing hardware unit 230 may prepare wireless charging based on a required charging time for one time.

The wireless communication preprocessing hardware unit 230 stores the tag signal received through communication with the mobile terminal 130 in a tag buffer. In one embodiment, the wireless communication pre-processing hardware unit 230 polls whether or not the wireless communication processing unit 240 is converted to an active mode and provides a tag signal in the tag buffer. This is because the tag signal may be lost if the wireless communication preprocessing hardware unit 230 transmits the tag signal before the wireless communication processing unit 240 operates in an active mode.

The wireless communication processing unit 240 converts the operation mode into an inactive mode when wireless data is not transmitted or received for a specific time during the wireless communication process. In one embodiment, the wireless communication processing unit 240 may determine a specific time by searching an active time reference table based on the type of tag signal. This is because the reception time of the response signal from the other party may be different depending on the type of tag signal.

The battery management unit 250 manages the battery 270 providing power to the wireless communication unit 210 , the memory 220 , the preprocessing hardware unit 230 and the wireless communication processing unit 240 . More specifically, the battery management unit 250 may manage whether or not the battery 270 normally operates and the remaining amount of the battery 270 .

The battery management unit 250 provides a contact request signal to the mobile terminal 130 so that the mobile terminal 130 can be charged through contact with the mobile terminal 130 during the process of processing the tag signal when the total amount of the battery is less than a specific standard. The battery management unit 250 can operate through the battery 270 when the radio tag device 110 is not connected to power by wire, and when the remaining amount of the battery 270 falls below a standard, the mobile terminal ( 130), the battery 270 can be charged wired or wirelessly.

The wireless charging unit 260 charges the battery 270. In one embodiment, the charging unit 260 may wirelessly charge the battery 270 through a magnetic induction wire. The wireless charging unit 260 supports wireless charging of the battery 270 by receiving a wireless charging start signal, and stops wireless charging when the instantaneous charging amount of wireless charging falls below a specific standard. That is, the wireless charging unit 260 may receive a wireless charging start signal from the wireless communication preprocessing hardware unit 230 or the battery management unit 250, detect that the wireless tag device 110 is moving away, and stop wireless charging. can do.

The wireless charging unit 260 displays the progress of wireless charging on the display before transmitting and receiving tag data. For example, the process of wireless charging may be implemented as a linear or circular progress bar indicating that it is in progress.

Also, the wireless charging unit 260 may display on the display that tag data transmission/reception is in progress even after the tag data is transmitted/received during the extended wireless charging time of the battery 270. This is to maximize wireless charging for one required charging time without interruption by the user. Alternatively, the wireless charger 260 may indicate on the display that the battery 270 is being charged even after the tag data is transmitted/received during the extended wireless charging time of the battery.

The wireless charging unit 260 may calculate the extended wireless charging time based on the remaining amount of the battery 270 after transmitting and receiving the tag data and display the extended wireless charging time on the display. In one embodiment, the wireless charging unit 260 may calculate the wireless charging extension time when the amount of charge that can be charged during one essential charging time is relatively small.

In one embodiment, the wireless charging unit 260 may calculate the minimum value of the wireless charging extension time by the following equation.

[mathematical expression]

Tmin = ( a(w) * e + b(w) ) / e / d(w)

Tmin is the minimum value of wireless charging extension time

a(w) is the amount of power consumed when the mobile terminal 130 communicates once

b(w) is the daily amount of power consumed by the mobile terminal 130 in an idle state

delete

d(w) is the amount of charging power according to the contact time (s) of the mobile terminal 130

e is the daily average number of contacts of the mobile terminal 130

FIG. 3 is a flowchart illustrating an operation method of a wireless charging system for a mobile terminal capable of being charged in the short-distance communication process of FIG. 1 .

3, the radio tag device 110 detects that the mobile terminal 130 approaches the radio tag device 110 (step S310). When the radio tag device 110 activates short-range communication and the wireless communication processing unit 240 operates in the inactive mode, it converts to the active mode through a wake-up signal (step S315).

The radio tag device 110 and the mobile terminal 130 prepare to perform short-range communication (step S320), and the mobile terminal 130 detects the MAC address of the radio tag device 110 and transmits it to the server 150, , The one-time required charging time of the radio tag device 110 is transmitted through the server 150 (steps S325 and S330).

The mobile terminal 130 first initiates wireless charging through the radio tag device 110 (step S335), and then completes short-range communication (step S340). The mobile terminal 130 calculates the wireless charging extension time based on the remaining amount of the battery 270 after transmitting and receiving the tag data (step S345). The mobile terminal 130 comes out of contact with the radio tag device 110 and finally completes wireless charging (steps S350 and S355).

Although the above has been described with reference to preferred embodiments of the present invention, those skilled in the art will variously modify and change the present invention within the scope not departing from the spirit and scope of the present invention described in the claims below. You will understand that it can be done.

110: a mobile terminal that can be charged in a short-distance communication process
130: mobile terminal
210: wireless communication unit
220: memory
230: wireless communication preprocessing hardware unit
240: wireless communication processing unit
250: battery management unit
260: wireless charging unit
270: battery

Claims (6)

battery;
a wireless communication unit supporting short-distance wireless communication;
a wireless charging unit that supports wireless charging of the battery by receiving a wireless charging start signal and stops the wireless charging when the instantaneous charging amount of the wireless charging falls below a specific standard;
a wireless communication pre-processing hardware unit recognizing the wireless tag device through the short-range wireless communication to first generate the wireless charging start signal and then generate an activation signal; and
A wireless communication processor operating in an active mode or an inactive mode, converting an operating mode into the active mode based on the activation signal, and exchanging tag data with the radio tag device;
The wireless charging unit
Displaying the progress of the wireless charging on a display before transmitting and receiving the tag data;
Even after the transmission and reception of the tag data, during the extended wireless charging time of the battery, the tag data is displayed on the display as transmission/reception is in progress or the battery is being charged on the display;
A mobile terminal capable of charging in a short-distance communication process, characterized in that the minimum value of the wireless charging extension time is calculated by the following equation.
[mathematical expression]
Tmin = ( a(w) * e + b(w) ) / e / d(w)
The Tmin is the minimum value of the wireless charging extension time
a(w) is the amount of power consumed when the mobile terminal communicates once
b(w) is the daily amount of power consumed by the mobile terminal in an idle state
d(w) is the amount of charging power according to the contact time (s) of the mobile terminal
e is the daily average number of contacts of the mobile terminal
delete delete battery;
a wireless communication unit supporting short-distance wireless communication;
a wireless charging unit that supports wireless charging of the battery by receiving a wireless charging start signal and stops the wireless charging when the instantaneous charging amount of the wireless charging falls below a specific standard;
a wireless communication pre-processing hardware unit recognizing the wireless tag device through the short-range wireless communication to first generate the wireless charging start signal and then generate an activation signal; and
A wireless communication processor operating in an active mode or an inactive mode, converting an operating mode into the active mode based on the activation signal, and exchanging tag data with the radio tag device;
The wireless charging unit
Displaying the progress of the wireless charging on a display before transmitting and receiving the tag data;
After transmitting and receiving the tag data, an extended wireless charging time is calculated based on the remaining amount of the battery and the wireless charging extended time is displayed on a display;
A mobile terminal capable of charging in a short-distance communication process, characterized in that the minimum value of the wireless charging extension time is calculated by the following equation.
[mathematical expression]
Tmin = ( a(w) * e + b(w) ) / e / d(w)
The Tmin is the minimum value of the wireless charging extension time
a(w) is the amount of power consumed when the mobile terminal communicates once
b(w) is the daily amount of power consumed by the mobile terminal in an idle state
d(w) is the amount of charging power according to the contact time (s) of the mobile terminal
e is the daily average number of contacts of the mobile terminal
delete The method of claim 1 or 4, wherein the wireless communication pre-processing hardware unit
When the activation signal is generated, the tag data received from the tag is stored in a tag buffer, and the wireless communication processing unit polls whether or not the activation mode has been converted to provide the tag data in the tag buffer. A mobile terminal that can be charged in the process of short-distance communication.