KR20110013557A - Family radio service communication module that serves walkie-talkie function for smart-phone - Google Patents

Family radio service communication module that serves walkie-talkie function for smart-phone Download PDF

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Publication number
KR20110013557A
KR20110013557A KR1020110005641A KR20110005641A KR20110013557A KR 20110013557 A KR20110013557 A KR 20110013557A KR 1020110005641 A KR1020110005641 A KR 1020110005641A KR 20110005641 A KR20110005641 A KR 20110005641A KR 20110013557 A KR20110013557 A KR 20110013557A
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KR
South Korea
Prior art keywords
smartphone
frs
unit
wireless communication
smart phone
Prior art date
Application number
KR1020110005641A
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Korean (ko)
Inventor
이영종
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이영종
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Application filed by 이영종 filed Critical 이영종
Priority to KR1020110005641A priority Critical patent/KR20110013557A/en
Publication of KR20110013557A publication Critical patent/KR20110013557A/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/02—Inter-networking arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H04W4/10—Push-to-Talk [PTT] or Push-On-Call services

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Telephone Function (AREA)
  • Telephone Set Structure (AREA)

Abstract

PURPOSE: A family radio service communication module that serves a walkie-talkie function for a smart-phone is provided to enable a user of a smart phone to use an FRS wireless communication at a minimum cost. CONSTITUTION: Connector units(210,211) are connected to a smart phone, and a control unit(421) controls an RF(Radio Frequency) modem unit(427) according to a control command and a wireless communication transmission and reception data received from a smart phone through the connection units. The control unit transfers the data transmitted and received to and from the RF modem unit to the smart phone. A power supply unit(429) supplies the power of the smart phone received through the connector units to the RF modem unit and the control unit.

Description

 External Radio Service Communication Module that serves Walkie-Talkie function for Smart-Phone}

 The present invention relates to a smartphone and a radio.

The present invention relates to an FRS communication module for use in the form of a module attached to a smartphone. More specifically, by using only a smartphone's power and hardware resources such as a microphone, speaker, display, and buttons, only the module including the RF modem unit 427 and the controller 421 necessary for FRS communication is attached to the outside of the smartphone. The present invention relates to a device for enabling a smartphone to be used as a FRS radio terminal by executing a driving app for the FRS module in the smartphone.

FRS (Family Radio Service) is a type registered name of American type radios and is commonly referred to as 'CB2' in Korea. The average call radius is 3Km, and unlike pagers and mobile phones, it does not require radio taxes and radio station permits. The output is limited to 0.5W and uses the 400MHz UHF frequency band. The frequency band allocated to FRS in Korea is allocated 25 channels at intervals of 12.5 kHz in the range of 448.75 MHz to 449.2625 MHz. FRS is a multi-party half-duplex method in a set channel and can be conveniently used without connecting a separate relay device or network network, and it is free to use if there is no need for a separate communication service subscription. However, due to lack of communication security, it is mainly used for industrial sites and leisure purposes. In order to use the FRS, a dedicated radio must be used, so a dedicated radio terminal must be purchased.

If you use a mobile phone to communicate between users who need communication at a short distance, you have to pay a service fee, and if you want to use a communication means such as FRS that does not require a separate communication cost, you must purchase a complete dedicated terminal. In order to solve this problem, the present invention provides FRS communication by providing a module integrating only the RF modem unit 427, the control unit 421, and only a few function blocks to the outside of the smartphone 102 to provide FRS communication. The cost of dedicated equipment for communication can be greatly reduced.

 The smartphone plays the role of the main functional blocks required in the FRS communication terminal, and connects only the minimum hardware resources such as the RF modem unit, voice signal processing unit, and control unit necessary for FRS communication to the outside in module form. By controlling the connected module with an application, it is possible to provide FRS communication to a smartphone user at a minimum cost.

According to the present invention, by providing the FRS module 101 of the type coupled to the smart phone 102 allows a smartphone user to use FRS wireless communication at a minimum cost, and separate from other nearby FRS communication users The cost savings can be achieved by having the necessary conversations with FRS communication, which does not cost communication costs.

1 is a view showing a state in which the FRS module attached to the smart phone according to an embodiment of the present invention using another FRS radio or a smart phone equipped with the FRS module and a radio function,
Figure 2 is a view showing a state in which the FRS module according to the preferred embodiment of the present invention hangs on the smartphone ring string
3 is a view showing a state in which the FRS module according to the preferred embodiment of the present invention connects the standard charger by acting as a common standard connector adapter,
4 is an internal functional block diagram of an FRS module according to a preferred embodiment of the present invention.
5 is a view showing a smartphone screen to attach the FRS module to the smartphone according to another preferred embodiment of the present invention and running the relevant driving app

According to the object of the present invention, usually hanging on the connection line of the smartphone 102 When you want to use FRS radio communication mounted on the external connector of the smartphone and running the app for FRS radio communication of the smartphone and other FRS terminals Provides a smartphone-mounted FRS module that enables radio communication.

Among the various functional blocks of the radio for the FRS radio communication, the user interface, the microphone, the speaker, and the battery unit are utilized as those built in the smartphone 102 main body, so that the external FRS module has a dedicated RF modem unit 427, a controller 421, By adding only a circuit such as the smart phone interface unit 424, 425, 426, there is an advantage that the FRS radio communication can be used at a minimum cost by providing the FRS radio function to the smartphone.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used as much as possible even if displayed on different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

1 is a state in which the FRS module 101 according to the preferred embodiment of the present invention mounted on the smartphone 102 to communicate with the FRS-only radio 103 and the smartphone 102 equipped with the same FRS module 101. Is a conceptual diagram showing the FRS radio communication.

2 is a view showing an example of a specific shape of the FRS module 101 according to a preferred embodiment of the present invention, in the case of a commercial smartphone when receiving the external connection signal pin in the integrated connector collectively according to the manufacturer and product And a separate jack for connecting to an external audio input or a dedicated external connector such as USB. Accordingly, in the case of the FRS module according to the preferred embodiment of the present invention, when the commercial smartphone uses an integrated connector, the commercial smartphone has an integrated accommodating connection structure (211) and an external connection such as an audio input / output jack and a USB. In the case of having a connector separately, a smart phone connection connector unit 210 having a combination of an audio input / output jack and a USB connector may be provided to correspond thereto.

In addition, the FRS module 101 according to the preferred embodiment of the present invention includes a standard connector 202 for a standard charger or a standard connector attached device separately from the smart phone connecting connector part, thereby providing a standard connector connecting device and a smart phone. It can also act as a bridge to connect. The FRS module also has the advantage that it can be carried comfortably hanging on the connecting line 203 to the smartphone as usual.

3 is a view showing the FRS module 101 according to a preferred embodiment of the present invention connecting the standard charger 301 to the smartphone 102 by acting as a bridge between the dedicated external connector of the smartphone 102 and the standard connector. The figure shows. Thus, the FRS module 101 of the present invention can continue to utilize the standard charger widely distributed in the existing.

4 is a block diagram illustrating an internal functional block of the FRS module 101 according to an exemplary embodiment of the present invention. When the FRS module 101 is in the FRS transmission mode, the FRS module 101 may receive the audio output signals 412 and 413 of the smart phone 102 through the connector unit 210 or 211, so that the voice spoken by the user to the smart phone 102 is smart. The phone 102 is transmitted to the FRS module 101 through the audio output signal lines 412 and 413, and the signal is transmitted to the RF modem unit 427 via the conversion circuit 424 and the switch unit 426 to be suitable and the FRS. It is modulated by a modulation method such as FM used for communication and transmitted wirelessly. When the FRS module 101 is in the FRS reception mode, the signal received from the wireless communication channel is demodulated by the RF modem unit 427, and the connector unit 210 is connected to the smartphone via the switch unit 426 and the conversion circuit unit 425. The smartphone 102 of the smartphone 102 external microphone input signal 414 of the 211 is transmitted to the smartphone 102 and the signal of the smartphone 102 under the control of the FRS module driving app in the smartphone 102 The sound is output through.

The power of the FRS module 101 required in this process is also operated by being supplied from the internal battery of the smartphone 102 through the connector (210, 211). The control unit 421 of the FRS module 101 is smart to control the operation details, such as the FRS channel setting details, sub-channel setting details, transmission, reception mode switching, signal strength adjustment, etc. set by the user by operating the FRS communication driving app of the smartphone. It receives RF from the phone and controls the RF modem unit 427 and other internal function blocks in accordance with this operation command. The control unit 421 of the FRS module 101 is connected in the form of a USB standard or other general purpose I / O (GPIO) through the connector unit 210, 211 receives a control command from the smartphone 102, Send the necessary information.

In the case of commercial smartphones, external connector specifications vary depending on the manufacturer and the product, and in some cases, separate audio input / output (412, 413, 414) may be absent or partially absent. In this case, when the ADC 422 and the DAC 423 are built in the FRS module 101 and the FRS transmission mode is used, the voice of the user is transmitted from the smartphone 102 in the form of digital data to the USB of the connector 210 or 211. The digital voice data received by the control unit 421 through the GPIO or the like may be converted into an analog signal through the DAC 423 and wirelessly transmitted to the RF modem unit 427. In addition, the signal received by the RF modem unit 427 through the wireless channel is digitized through the ADC 422 and transferred to the smartphone 102 in the form of digital data via USB or GPIO of the connector unit 210,211 and the smart phone. In the 102, the FRS module 101 provides a FRS wireless communication function even in a smart phone without a separate audio dedicated input / output connector unit by converting the received digital signal information into a voice information by processing the FRS driving app. Can be.

In addition, the FRS module 101 is coupled to the smartphone 102, but there is no separate FRS dedicated smartphone driving app execution information from the user, or if there is no FRS transmission and reception mode setting, the control unit 421 recognizes this. By doing so, the FRS module 101 serves as a standard connector unit 202 connection bridge, so that the standard charger or other standard connector attached devices can be connected to the smartphone 102.

5 is a view showing a state in which the FRS module 101 in accordance with a preferred embodiment of the present invention connected to the smartphone 102 and running the FRS wireless smartphone app on the smartphone. The smart phone FRS app should have a channel setting interface 501 and a subchannel setting interface 502 essential for FRS wireless communication, and push to talk button PTT (PTT) interface 504 necessary for the half duplex constraint of FRS communication. ) Must exist. There may also be an interface 503 for setting optional functions such as an additional Voice Operated Switch (VOX). Such an interface may be implemented through a touch screen of the smartphone 102, or may be implemented by a dedicated hardware type input device such as a general general-purpose switch 505 mounted on the smartphone 102.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

101: FRS module according to a preferred embodiment of the present invention
102: smartphone 103: FRS dedicated wireless terminal
210: USB connector and audio of the FRS module according to an embodiment of the present invention
Smartphone connection connector consisting of input and output jacks
211: dedicated integrated unit of the FRS module according to another preferred embodiment of the present invention
Smartphone connection connector using connector
202: FRS having a common connector adapter function according to a preferred embodiment of the present invention
Common connector connection on module
203: Smartphone Accessory Strap
301: Standard Pin Specification Charger
410: smartphone external connection connector
411: Data communication line such as USB among the smartphone external connection connector
412, 413: speaker output line or audio output line
414: microphone input line or audio input line
415: connection lines via smartphone external connection connector
416: smartphone external supply power line
417: smartphone ground line
421: FRS module control unit
422: ADC (Analog to Digital Converter)
423: DAC (Digital to Analog Converter)
424: audio output signal to RF modem TX signal conversion unit
425: RF modem RX signal to audio input signal converter
426: switch unit
427: RF modem unit
428: antenna
429: FRS module power supply
430: wiring conversion unit
431 connecting lines between the standard connector and the wiring conversion unit
501: FRS communication channel setting menu
502: FRS communication subchannel CTCSS tone setting menu
503: VOX function setting menu
504: PUSH-TO-TALK button menu
505: smartphone hardware key input resources

Claims (6)

Built-in RF modem unit 427 and antenna unit 428 for FRS wireless communication and received from the smartphone via the connector unit 210,211 connected to the smartphone, the smart phone 102 connection connector unit 210,211 A control unit 421 for controlling the RF modem unit 427 according to a control command and wireless communication transmission / reception data, and transmitting and receiving data to and from the RF modem unit to a smart phone, the RF modem unit 427 and the control unit ( 421 is equipped with a power supply unit 429 for transmitting the power of the smartphone received through the smartphone connection connector (210,211) and plugs into an external connection connector of the smartphone to run a dedicated app on the smartphone FRS smartphone Smartphone-mounted FRS wireless communication module, which provides a function that can be used like a radio The method of claim 1,
ADC (422) for converting the analog signal received from the FRS RF modem unit 427 to digital, and has a DAC (423) for converting the transmission voice digital data received from the smartphone 102 to an analog signal Smartphone external mounting type FRS wireless communication module The method of claim 1,
It is characterized in that it has a current-voltage signal converter 424 for receiving the audio output signal of the smartphone from the smart phone 102 connection connector (210, 211) and converts this signal into a form that can be input to the FRS modem unit (427) Smartphone externally mounted FRS wireless communication module The method of claim 1,
The FRS RF modem unit 427 has a signal level conversion circuit unit 425 for transmitting the signal received in the wireless channel to the smartphone microphone input signal line of the smartphone 102 connection connector unit 210,211. Smartphone External Mount FRS Wireless Communication Module The method of claim 1,
Smartphone external mounting type FRS wireless communication module having a standard connector unit 202 having a wire conversion unit 430 to serve as a bridge between the standard connector and different smartphone external connectors for each manufacturer The method of claim 1,
Smart phone externally mounted FRS wireless communication module, characterized in that the operation setting such as channel setting and sub-channel setting necessary for FRS communication is set in a dedicated app of the smartphone and the set data is transmitted from the smartphone to perform the FRS communication function.
KR1020110005641A 2011-01-19 2011-01-19 Family radio service communication module that serves walkie-talkie function for smart-phone KR20110013557A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020110005641A KR20110013557A (en) 2011-01-19 2011-01-19 Family radio service communication module that serves walkie-talkie function for smart-phone

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Application Number Priority Date Filing Date Title
KR1020110005641A KR20110013557A (en) 2011-01-19 2011-01-19 Family radio service communication module that serves walkie-talkie function for smart-phone

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101390352B1 (en) * 2012-12-28 2014-04-30 주식회사 엔알피시스템 Walkytalky comprising smart phone and docking cradle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101390352B1 (en) * 2012-12-28 2014-04-30 주식회사 엔알피시스템 Walkytalky comprising smart phone and docking cradle

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