KR20180052241A - Smart connecting control method for wireless audio system - Google Patents

Abstract

The present invention relates to a method for controlling a connection of a smart wireless audio system, which allows a simpler connection by a stepwise procedure of approving a connection on the basis of a bilateral proximity distance, a movement of a wireless microphone, a persistence time within a communicable distance, and an identification code of a pre-registered wireless microphone, when the wireless microphone is wirelessly connected to a wireless station to allow an audio signal to be transmitted to the wireless station, precisely selects and allows connection of a wireless microphone requiring a connection, and allows a setting value of the wireless microphone to be automatically used as a setting value of the wireless station at the same time as the connection approval. The method for controlling a connection of a smart wireless audio system comprises: a process of allowing interconnection in a proximity distance and then performing a final confirmation using an identification code of a wireless microphone; and a process of setting an operation of a wireless station with a user setting value corresponding to the identification code.

Description

TECHNICAL FIELD [0001] The present invention relates to a smart wireless audio system,

In the present invention, when a wireless microphone is wirelessly connected to a wireless station to allow audio signals to be transmitted to the wireless station, the proximity distance between the wireless microphone and the wireless microphone, the duration of the wireless microphone, the duration of the wireless microphone, It is possible to more easily connect to the wireless microphones by a step-by-step procedure of approving the connection, to precisely select and connect the wireless microphones desired to be connected, to allow the setting value of the wireless microphone to be automatically used as the wireless station setting value And more particularly, to a smart wireless audio system access control method.

A wireless audio system is a system for receiving an audio signal wirelessly transmitted from a wireless microphone at a wireless station and outputting it as an acoustic signal through a speaker. The wireless audio system is not restricted by the movement of a microphone, (Or a classroom) of course, but also variously installed in a classroom or a meeting room.

In such a wireless audio system, wireless microphones need to be wirelessly connected (or paired or linked) to a wireless station to mutually recognize and transmit / receive audio signals.

Prior art related to wireless access technology of wireless audio systems is disclosed in Patent Publication No. 10-2010-0127400, which uses mutually promised IDs, a method of reducing the transmission power when attempting to connect for the first time, 10-1418929.

According to the related art, although wireless microphones of adjacent wireless audio systems are excluded, they can be automatically connected to each other. However, since only a single connection method is adopted, the present invention can be restricted by various environmental conditions of installation sites.

For example, a technology using an ID may connect an undesired wireless microphone, and a technique of lowering the transmission power and connecting the wireless microphone should be close to each other at a predetermined interval. However, In order to avoid mutual interference, it is necessary to consider the spacing from the adjacent wireless audio system.

Also, since the audio system must be set differently according to the user, there is a need to adjust the audio setting value for the wireless station even if the wireless connection is established

KR 10-2010-0127400 A 2010.12.06. KR 10-1418929 B1 2014.07.07.

Accordingly, the present invention provides wireless connection in accordance with a step-by-step procedure of a complex wireless access system, and is convenient to use without being restricted by the installation place and use environment of the wireless audio system. To a smart radio audio system access control method.

In order to achieve the above object, the present invention provides a wireless connection between a wireless microphone (10) and a wireless station (20), which is a wireless device having a maximum communication range (R) (R) set in advance to a value equal to or smaller than the maximum communication range (R) in a wireless device among the wireless microphone (10) and the wireless station (20) (S100) for searching for another radio device in proximity to the detected radio device and connecting to the other radio device to be searched; A connection limiting step (S300) for checking the identification code of the connected other wireless device in the wireless station (20) and maintaining the connection only when it exists in the pre-registered identification code; A user environment setting step (S400) of setting, in the wireless station (20), to operate with a user setting value corresponding to an identification code of the other wireless device to be connected, among the user setting values per pre-registered identification code; .

In an embodiment of the present invention, in the user configuration step (S400), the user setting value may include a volume, a tone or an audio equalizer setting.

In an embodiment of the present invention, the wireless linkable distance r can be controlled by an input by a user on one side of the wireless device

In an embodiment of the present invention, the one-side wireless device is a wireless station 20 and the other wireless device is a wireless microphone 10 having an acceleration sensor 15, Can be detected by the wireless station (20) when it is generated in the wireless microphone (10).

In the embodiment of the present invention, the one-side wireless device is a wireless station 20, the other wireless device is a wireless microphone 10, and the proximity link step S100 is a step of receiving signal strength Indication, received signal strength) signal is sensed in a pattern corresponding to a predetermined motion and is simultaneously searched in the wireless linkable distance r.

In the embodiment of the present invention, the proximity link step S100 is a state in which the transmission power of one of the wireless microphones 10 and the wireless station 20 is lowered to the transmission power corresponding to the wireless linkable distance r It is possible to make a connection when mutual communication becomes possible with the other radio apparatus and to restore the transmission power to the original transmission power corresponding to the maximum communication distance R after the connection approval.

In the embodiment of the present invention, the proximity link step S100 is a step in which the RSSI (Received Signal Strength Indication) of the other radio device in the radio device 10 and the radio device 20, It is possible to make a connection when the value is equal to or larger than the value corresponding to the possible distance r.

In an embodiment of the present invention, when the connection fails in the step S100, the one-side radio device searches for the other radio device existing within the maximum communication range R at a predetermined slave time or more, And a non-proximity link step (S200) of connecting to the other discovered radio device when the other radio device to be searched is one.

In the embodiment of the present invention, the non-proximity linking step (S200) can connect to the other radio apparatus having the largest RSSI (Received Signal Strength Indication) even when a plurality of other radio apparatuses have.

According to the present invention as described above, only the wireless microphones desired by the user can be selectively connected to the wireless station automatically by the access restriction according to the proximity link and the identification code.

In addition, according to the present invention, a final approval process using an identification code and an automatic user setting process after connection approval are performed, so that audio settings desired by the user can be performed simultaneously with wireless connection.

Further, the present invention allows the user to arbitrarily adjust the distance at which the connection can be approved, thereby enhancing the connection restriction condition.

Further, the present invention can selectively connect only the user's wireless microphone by adding the motion of the wireless microphone as a connection condition.

1 is a block diagram of a wireless audio system operated by a smart wireless audio system access control method according to an embodiment of the present invention;
2 is a flowchart of a smart radio audio system access control method according to an embodiment of the present invention.
3 is a use state diagram of a wireless audio system having the configuration of FIG.
4 is a connection procedure flowchart according to the first embodiment of the proximity link step S100;
5 is a connection procedure flow diagram according to a second embodiment of the proximity link step SlOO;
6 is a flowchart of a connection procedure according to a third embodiment of the proximity link step S100;
7 is a connection procedure flowchart according to a fourth embodiment of the proximity link step SlOO;

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a block diagram of a wireless audio system operated by a smart radio audio system access control method according to an embodiment of the present invention. FIG. 2 is a state diagram of the wireless audio system using the configuration of FIG. 1, 1 is a flowchart of a smart radio audio system access control method according to an embodiment of the present invention.

Figs. 4 to 7 are examples of the proximity link step SlOO included in the flowchart of Fig.

1, according to an embodiment of the present invention, in a wireless audio system composed of a wireless microphone 10 and a wireless station 20, which are wireless equipments, The wireless microphone 10 that has been converted into a digital signal by the signal processing unit 13 and transmitted through the transmitting and receiving unit 11 is wirelessly connected to the wireless station 20 by selecting the wireless microphone 10 (12, 22) for wireless connection to the wireless microphone (10) and the wireless station (20), respectively, so that the audio signal transmitted only from the wireless station (20) can be received by the transmitter / receiver .

Here, the wireless station 20 outputs the audio signal received through the transceiver 21 to a speaker through a signal processing unit 23 that performs signal processing such as suppression of howling, volume, tone, and audio equalizer Lt; / RTI >

In addition, the wireless microphone 10 and the wireless station 20 are configured to have an appropriate maximum communication distance R based on the usage environment or radio frequency use restriction requirements. At this time, the maximum communication range R is a limit of the distance that can guarantee the transmission / reception quality of the audio signal.

According to the present invention, a wireless microphone 10 that allows connection with a wireless station 20 among wireless microphones 10 that perform a wireless connection operation after turning on a power or separately provided link button (not shown) According to the distance to the station 20, the predetermined movement of the wireless microphone 10, the duration of time in the communication range R of the wireless station 20, and the identification code of the pre-registered wireless microphone 10, The wireless microphone 10 and the wireless station 20 are configured to have the link units 12 and 22 for operating the wireless station 20 according to the set values in the transmitting and receiving units 11 and 21.

The wireless microphone 10 also includes an acceleration sensor 15 for sensing the movement of the wireless microphone 10.

The link unit 12 of the wireless microphone 10 transmits a connection request signal to the wireless microphone 10 after a motion detected by the acceleration sensor 15 occurs in a predetermined motion or during a predetermined motion, And attempts to establish a connection with the wireless station 20.

Here, the predetermined movement is exemplified by a predetermined number of times of upward and downward movement of the wireless microphone 10, a predetermined number of rotations, and a predetermined number of times of side-to-side shaking.

The link unit 12 of the wireless microphone 10 may be configured to have a wireless linkable distance r set in advance to be shorter than the maximum communication distance R A function of adjusting transmission power or a function of detecting RSSI (Received Signal Strength Indication) is used to access the wireless station 20, and after the transmission of the reply signal, The mobile station 20 can transmit the audio signal to the wireless station 20, and if the mobile station 20 is wirelessly connected to the mobile station 20 through the transmission power control function, the mobile station 20 restores the communication range to the maximum communication range R, And allows the transmission power of the possible distance R to transmit the audio signal.

The wireless linkable distance r allows a user holding a wireless microphone to control the wireless linkable distance r through a user interface 16 such as an up / down button. That is, the wireless microphones can limit the wireless stations to be wirelessly linked even if there are a plurality of wireless stations 20 in the vicinity by setting the wireless linkable distance according to the distance from the wireless station 20.

The identification code is assigned to each wireless microphone 10 and stored in the link unit 12 or assigned to each wireless microphone user so that the wireless microphone 10 is provided with an input key (not shown) Lt; / RTI >

The link unit 12 of the wireless microphone 10 may be an embodiment for adjusting the transmission power and controlling connection in the wireless station 20 as described below, Indication, received signal strength), the transmission power control function or the RSSI detection function may not be provided.

The link unit 22 of the wireless station 20 stores an identification code assigned to the wireless microphone 10 or a user or a user setting value for each identification code in advance and stores the received signal, A proximity link for searching for a wireless microphone 10 close to the wireless linkable distance r, a search range expanding search for a failure of a nearby link, And a connection maintaining operation for finally determining connection maintenance in accordance with the identification code received from the wireless microphone 10 searched in the non-proximity link, the primary or the non-proximity link.

Here, the proximity link operation may search by adding a condition that the change of the RSSI signal is detected in a pattern corresponding to the predetermined motion.

In addition, the wireless linkable distance r in the wireless station 20 allows the user to adjust it to a certain value through the user interface 24 such as a vertical adjustment button. That is, even if there are a plurality of wireless microphones in the vicinity, the wireless microphones to be wirelessly linked can be restricted.

The user setting value corresponding to the identification code of the wireless microphone to be connected is used as the setting value for the operation of the wireless station 20 so that the wireless microphone Signal processing.

Here, the user setting value for each identification code may include a volume control, a tone control or an audio equalizer, and may be registered in advance for each wireless microphone or user.

On the other hand, the link unit 20 of the wireless station 20 may not have the function in the embodiment which does not use the transmission power control function in the embodiments described later.

Referring to the use state diagram illustrated in FIG. 2, the connection procedure will be described as follows.

2 shows a state in which audio systems are installed in adjacent classrooms 1 and 2, respectively. The wireless station 20-1 in the classroom 1 not only communicates with the wireless microphone 10-1 in the classroom 1 but also the wireless microphone 10 -2 are connected to each other by a power supply and both of the wireless microphones 10-1 and 10-2 are within the maximum communication range R, it is possible to determine which wireless microphones are connected to receive audio signals Can not.

However, according to the present invention, when the wireless microphone 10-1 of the classroom 1 approaches the wireless station 20-1 of the classroom 1 within the wireless linkable distance r, Further, it is possible to restrict the wireless microphones to be connected by adding a condition for searching only the wireless microphones 10-1 that have been wobbled with the predetermined motion, and then, the identification code of the wireless microphone 10-1 in the classroom 1 is transmitted to the wireless station It is possible to maintain the connection and transmit the audio signal even when the wireless linkable distance r is out of order and transmit the audio signal to the wireless station 20-1 of the classroom 1.

If the wireless microphone 10-1 of the classroom 1 is not close to the wireless station 20-1 of the classroom 1 within the wireless linkable distance r but instead is in a state The wireless microphone 10-2 of the classroom 2 is searched for by the secondary search when the wireless microphone 10-2 of the classroom 2 is in the power-on state only within the duration time, Thus, the secondary search fails when the power-on state is maintained.

When the secondary search is failed and the primary search is resumed, the wireless station 20-1 can guide it to within the wireless linkable distance (r) through lamp lighting or voice guidance to search in the primary search It is good to have.

The operation of the wireless station 20 including the link unit 22 will be described in detail with reference to a flow chart of a smart radio audio system access control method according to an embodiment of the present invention shown in FIG.

The smart wireless audio system access control method according to an embodiment of the present invention includes a proximity link step S100, a non-proximity link step S200, a link limitation step S300, and a user configuration step S400, A transmission and reception step S500 of performing signal processing according to a user setting value set by the user environment setting step S400 is performed in connection with the wireless microphone 10 that has passed the step S300.

The proximity link step S100 is a step in which the wireless microphone 10 in the wireless station 20 is within a predetermined wireless linkable distance r relatively shorter than the maximum communication distance R at the time of receiving the audio signal, And identifies the wireless microphone 10 according to the proximity distance between the wireless microphone 10 and the wireless station 20. [

Then, when the wireless station 20 searches for a wireless microphone 100 close to the wireless linkable distance r (S101), the wireless station 20 permits the connection of the detected wireless microphone 100, and then performs a link limiting step S300 .

An embodiment of the proximity link step S100 according to the limitation of the wireless linkable distance r will be described with reference to Figs.

According to the flow chart of the connection procedure shown in FIG. 4, in the state where the transmission power of the wireless microphone 10 is lowered to the transmission power corresponding to the wireless linkable distance r, 20 when a response of the wireless microphone 10 to the connection request signal is received by the wireless station 20 and then the wireless microphone 10 restores the transmission power to the transmission power corresponding to the communication distance .

Specifically, when the power is turned on, the wireless station 20 periodically transmits an access request signal (S111). If the predetermined movement occurs after the power of the wireless microphone 10 is turned on (S112), the transmission power of the transmission / Is lowered to the transmission power corresponding to the wireless linkable distance r and this state is maintained (S113). That is, the wireless microphone 10 enters a state in which it can connect to the wireless station 20 only in a predetermined motion. Here, the wireless linkable distance r may be controlled by a user interface within a range of a maximum communication distance R or less.

At this time, if the wireless microphone 10 is not in proximity to the wireless station 20 within the wireless linkable distance r, even if the wireless station 20 reports a signal periodically received (S115, S116) The reply is not received (S117).

When the wireless microphone 10 is brought close to the wireless station 20 within the wireless linkable distance r for both connections (S118), the response to the received connection request signal reaches the wireless station 20 (S119, S120, S121), the connection is approved (S122).

Here, the wireless station 20 detects a change pattern of the RSSI signal of the wireless microphone 10 at the time of receiving a reply, adds a condition to be detected as a paddle corresponding to the predetermined motion, (r), and when there is a reply from the wireless microphone (10) with the predetermined motion, the connection is approved.

When the wireless microphone 10 moves, the distance between the transmitting / receiving unit 11 of the wireless microphone 10 and the transmitting / receiving unit 21 of the wireless station 20 varies and the size of the RSSI also varies. It is possible to estimate the movement pattern of the wireless microphone 10 so that only the wireless microphone 10 having the predetermined movement can be identified.

Particularly, the closer the distance between the wireless microphone 10 and the wireless station 20 is, the more the RSSI fluctuation due to the movement of the wireless microphone 10 becomes stronger, so that the movement pattern can be detected accurately from the RSSI of the wireless microphone 10 have.

Thus, only the wireless microphones 10 satisfying all the distance differences and the movement patterns are selected and connected and approved, so that even if other wireless microphones 10 are in the vicinity, only the desired wireless microphones 10 can be selected for connection approval.

When the connection is approved, the wireless microphone 10 can restore the transmission power to the original transmission power corresponding to the maximum communication range R, and transmit the audio signal with the restored transmission power.

According to the proximity link step S100 (S111 to S123), when the wireless microphone 10 is moved toward the wireless station 20, the connection is approved, and thereafter, the wireless microphone 10 is freely located within the maximum communication distance R There is convenience to move and use.

According to the flowchart of the connection procedure shown in FIG. 5, the near link step S100 is a step of transmitting a connection request signal at a transmission power corresponding to the wireless linkable distance r at the wireless station 20, Connects with the microphone 10, and then restores the transmission power to the power corresponding to the communication possible distance.

More specifically, when the wireless station 20 performs an operation for connection with the wireless microphone 10 after turning on the power, the wireless station 20 preferentially transmits the transmission power of the connection request signal to the wireless linkable distance r (S131), and periodically transmits a connection request signal at a reduced transmission power (S132). Here, the wireless linkable distance r may be controlled by the user interface 24 within a range equal to or smaller than the maximum communication range R.

When the connection request signal is transmitted, if the wireless microphone 10 is powered on and the wireless station 20 is not located within the wireless linkable distance r even if there is a predetermined movement (S133) S134), the connection request signal transmitted from the wireless station 20 can not be received (S135, 136), and consequently the reply to the connection request signal can not be received in the wireless station 20 (S137) .

Thus, if the wireless microphone 10 is brought close to the wireless station 20 within the wireless linkable distance r for the two-way connection (S138), the connection request signal can be received and the connection request signal is returned (S139, S140), the wireless station 20 is enabled to receive a reply (S141).

Also in this case, the wireless station 20 may add a condition that the RSSI signal pattern of the wireless microphone 10 should be detected in a pattern corresponding to the predetermined motion, to the access approval condition.

Thereafter, the wireless station 20 restores the transmission power to the original transmission power corresponding to the maximum communication distance R (S142), approves the connection (S143), and the wireless microphone 10 sets the wireless linkable distance r, it is possible to transmit and receive data to and from the wireless station 20.

6 and 7, the neighbor linking step S100 is performed in the wireless microphone 10 or the wireless station 20 so that the received signal strength indicator (RSSI) And is connected when the value is equal to or larger than the value corresponding to the wireless linkable distance r.

Referring to FIG. 6, in the proximity link step S100, the wireless station 20 periodically transmits an access request signal in step S151, and the wireless microphone 10 (step S152) Is not close to the wireless station 20 within the wireless linkable distance r (S153), the wireless microphone 20 detected by the wireless station 20 (S154, S155) The RSSI for the wireless link 10 becomes less than the reference value corresponding to the wireless linkable distance r in step S156 and the wireless microphone 10 does not respond to the connection in step S157 so that the wireless microphone 10 can communicate with the wireless station 20 within the wireless linkable distance r If it is close (S158), the RSSI obtained from the reply to the connection request signal becomes equal to or greater than the reference value corresponding to the radio linkable distance r (S159, S160, S161) and the connection is approved (S162).

Also in this case, the wireless station 20 may add a condition that the RSSI signal pattern of the wireless microphone 10 should be detected in a pattern corresponding to the predetermined motion, to the access approval condition.

Next, referring to FIG. 7, in the proximity link step S100, the wireless station 20 periodically transmits an access request signal in step S171, and the wireless microphone 20, which has the predetermined movement (S172) If the RSSI of the received connection request signal is less than the reference value corresponding to the wireless linkable distance r in step S173 if the mobile station 10 is not close to the wireless station 20 within the wireless linkable distance r, If the RSSI of the connection request signal received in step S176 is within the wireless linkable distance r within the range of the wireless linkable distance r, (S177, S178), and receives a connection approval from the wireless station 20 (S180)

Here, the wireless microphone 10 may return the connection approval when the condition that the RSSI of the wireless station is equal to or higher than the reference value and the motion sensed by the acceleration sensor 15 satisfies the conditions that should be the predetermined motion.

In this way, the transmission power may not be adjusted by searching within the wireless linkable distance r by the intensity of the RSSI of the other side, and thus it is possible to search while maintaining the transmission / reception quality between the two.

Meanwhile, at least two or more embodiments may be concurrently performed among the embodiments described with reference to FIGS. For example, if the result of searching by lowering the transmission power is consistent with the result of searching by RSSI, only the wireless microphones are searched.

On the other hand, it is also possible that the wireless microphone 10 transmits the connection request signal and the wireless station 20 takes charge of the reply. That is, a wireless device for transmitting a connection request signal among the wireless microphone 10 and the wireless station 20 as a wireless device can be used as the wireless microphone 10 and the wireless station 20 can be searched. In this case, the connection request is handled by the transmitting side of the contact request signal, but it may be modified at the wireless station 20.

The non-proximity link step S200 is a step of searching for the wireless microphone 20 when the wireless station 20 fails to search for the wireless microphone 10 in the proximity link step S100 (S101).

As mentioned above, when the connection fails in the close link step (S200), the voice guidance is outputted so that the wireless microphone (10) is close to the wireless station (20) to make the connection, and the non-proximity link step However, even if the search area is extended, there may be an audio system use environment that can be effectively used while avoiding connection of other wireless microphones. Therefore, In the example, the non-proximity link step S200 is further described.

In the non-proximity link step S200, it is determined whether or not there is a wireless microphone 10 existing in a region between the wireless linkable distance r and the maximum communication range R, do. That is, it extends the search area to its original maximum communicable distance R capable of transmitting and receiving audio signals between the wireless microphone 10 and the wireless station 20.

Here, if there is a wireless microphone 10 that satisfies both the conditions existing singly and the conditions existing over the duration time, the connection with the wireless microphone 10 is approved, and then the link limiting step S300 is performed, If there is no wireless microphone 10 satisfying the condition, the process returns to the close link step S100 (S201).

Also in this case, the wireless station 20 may add a condition that the RSSI signal pattern of the wireless microphone 10 should be detected in a pattern corresponding to the predetermined motion, to the access approval condition.

By extending the search area in this way, by attaching a single condition and a duration time condition, even if a wireless microphone that appears and disappears in the search area for a while as a result of attempting a two-way interconnection in another audio system occurs, It can be excluded. It is possible to further increase the probability of connection with the desired wireless microphone 10 when the connection is approved under the condition that the RSSI signal pattern according to the movement of the wireless microphone 10 is added.

On the other hand, the search method may be a method of identifying the wireless microphone 10 that reports a connection request signal periodically transmitted during the duration time without missing (or disconnected), and the wireless microphone 10 may transmit a connection request signal The wireless microphone 10 may be configured to identify a wireless microphone 10 that maintains a signal for connection for the duration of time.

On the other hand, only the duration time may be set as a condition, and the single condition may not be used. In this case, if there are a plurality of wireless microphones 10 to be simultaneously searched, the wireless signal having the highest received signal strength (RSSI) And connects to the microphone 10.

The link limiting step S300 is a step executed when the wireless microphone 10 is connected in the proximity link step S100 or in the non-proximity link step S200, Is registered in the identification code stored in advance, and if it is a registered identification code, the connection is maintained, so that the audio signal can be received at the transmission power of the maximum communication range (R). If the identification code is not registered, the connection is canceled and the process returns to the close link step S100 (S301).

The user environment setting step S400 is a step in which the user setting value corresponding to the identification code of the wireless microphones 10 to be connected and passed through the link limiting step S300 is obtained from the pre- It is used as the setting value that affects the operation.

Here, the user setting value may be a setting value related to the processing of the audio signal received from the connected wireless microphone 10, and may be, for example, a volume adjustment value, a tone adjustment value, or an audio equalizer setting value Or the like.

 Of course, if the wireless station 20 is a wireless receiver and the audio device receiving and processing the audio signal is separate from the wireless receiver, it is natural that the user setting value is transmitted to the audio device to be used for audio setting, .

Thus, in processing the audio signal of the finally connected wireless microphone, the audio system can be set at the same time as the connection to operate according to the user set value of the wireless microphone.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, . ≪ / RTI > Accordingly, such modifications are deemed to be within the scope of the present invention, and the scope of the present invention should be determined by the following claims.

10: wireless microphone 11: transmitting / receiving unit 12: link unit
13: Signal processing section 14: Microphone 15: Acceleration sensor
16: User interface
20: wireless station 21: transmitting / receiving unit 22: link unit
23: Signal processing section 24: User interface
R: Maximum communication distance
r: Wireless link distance

Claims (9)

A smart radio audio system access control method for a wireless connection between a wireless microphone (10) and a wireless station (20), which is a wireless device having a maximum communication distance (R) for assuring transmission / reception quality of a signal,
The other radio device in the vicinity of the radio linkable distance r preset to a value equal to or smaller than the maximum communication allowable distance R is searched in one radio device among the radio microphone 10 and the radio station 20, A near link step (S100) for connecting with the other radio apparatus;
A connection limiting step (S300) for checking the identification code of the connected other wireless device in the wireless station (20) and maintaining the connection only when the identification code exists in the pre-registered identification code;
A user environment setting step (S400) of setting, in the wireless station (20), to operate with a user setting value corresponding to an identification code of the other wireless device to be connected, among the user setting values per pre-registered identification code;
Wherein the smart wireless audio system access control method comprises: The method according to claim 1,
Wherein the user preference value comprises a volume, a tone or an audio equalizer setting in the user preference setting step (S400). The method according to claim 1,
Wherein the wireless linkable distance (r) is adjustable to an input by a user on one side of the wireless device. The method according to claim 1,
The one side wireless device is a wireless station 20,
The other wireless device is a wireless microphone (10) having an acceleration sensor (15)
Wherein the proximity link step (S100) causes the wireless station (20) to search for a predetermined motion when the wireless microphone (10) is generated. The method according to claim 1,
The one side wireless device is a wireless station 20,
The other wireless device is a wireless microphone 10,
The proximity link step S100 is a step in which the change in the RSSI signal is detected in a pattern corresponding to a predetermined movement in the wireless station 20 and a search in the wireless linkable distance r To the wireless microphone (10). The method according to any one of claims 1 to 5,
In the proximity link step S100, the transmission power of one radio device among the radio microphones 10 and the radio station 20 is lowered to the transmission power corresponding to the radio linkable distance r, And permits the access when the communication becomes possible and restores the transmission power to the original transmission power corresponding to the maximum communication range R after connection approval. The method according to any one of claims 1 to 5,
In the proximity link step S100, the RSSI (Received Signal Strength Indication, received signal strength) of the other wireless device in the wireless device among the wireless microphones 10 and the wireless station 20 corresponds to the wireless linkable distance r The smart wireless audio system access control method comprising: The method according to any one of claims 1 to 5,
When the connection fails in the step S100, the other radio device existing within the maximum communication range R is searched for at least one slave time preset by the one radio device, And a non-proximity link step (S200) of connecting to the other one of the searched radio equipments. The method according to any one of claims 1 to 5,
The non-proximity link step (S200) accesses the other wireless device having the largest RSSI (Received Signal Strength Indication) even when a plurality of other wireless devices are searched simultaneously.

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