JP2017085384A - Radio communication system, radio communication apparatus, and control method for radio communication apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a radio communication apparatus capable of automatically switching a connection destination of a human interface apparatus using a short-range radio communication, in accordance with switching of a radio apparatus.SOLUTION: Radio apparatuses 11, 21 establish pairing with human interface apparatuses 16, 26, respectively. The radio apparatus 21 compares its own first communication quality with second communication quality of radio apparatuses 22, 23. When the second communication quality is higher than the first communication quality, the radio apparatus 21 transmits a connection request command for connecting with a radio apparatus 12 to a radio apparatus having highest communication quality (for example, the radio apparatus 22). The radio apparatus 22 transmits a connection request to the radio apparatus 12 to establish communication with the radio apparatus 12. The radio apparatus 22 transmits a paring disconnection command to the radio apparatus 21 and requests the human interface apparatus 26 to establish pairing. The radio apparatus 21 disconnects pairing with the human interface apparatus 26.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a wireless communication system that wirelessly communicates between a plurality of wireless communication devices including a plurality of wireless devices corresponding to a plurality of frequency bands or a plurality of communication methods, the wireless communication device, and a control method for the wireless communication device.

  There is a wireless communication apparatus including a plurality of wireless devices that perform wireless communication using a plurality of different frequency bands called dual band or multiband. The wireless communication apparatus may include a plurality of wireless devices that perform wireless communication using a plurality of communication methods. When a wireless communication system is configured by using two or more of these wireless communication devices, a plurality of wireless communication devices may communicate via repeaters.

  For example, a human interface device such as a speaker or a microphone may be connected to the wireless device.

  2. Description of the Related Art In recent years, two electronic devices that are used in close proximity are connected by short-range wireless communication instead of a wired cable, and the two electronic devices are operated in cooperation with each other. Even in a wireless device and a human interface device, there are cases where both are connected by short-range wireless communication and operated in cooperation.

JP 2014-82587 A

  When the wireless communication device includes a plurality of wireless devices, the human interface device may be connected to only one of the plurality of wireless devices by short-range wireless communication. That is, it is common that a plurality of wireless devices and human interface devices cannot be connected simultaneously.

  The communication quality of radio waves received by the first radio connected to the human interface device may deteriorate, and the radio quality of radio waves of the second radio in other frequency bands may be better. In such a case, it is preferable to automatically switch the wireless device with which the plurality of wireless communication devices communicate from the first wireless device to the second wireless device.

  If the wireless device to be communicated is switched from the first wireless device to the second wireless device, the connection destination of the human interface device by short-range wireless communication cannot be automatically switched to the second wireless device. Therefore, if the radio is switched while talking using a human interface device, the call is interrupted. In addition, the second wireless device and the human interface device must be manually reconnected by short-range wireless communication.

  A plurality of wireless communication apparatuses in a wireless communication system automatically selects and communicates with a wireless device having the best radio wave communication quality among a plurality of wireless devices, and supports short-range wireless communication in response to switching between wireless devices. It is required to automatically switch the connection destination of the human interface device.

  The present invention can automatically select and communicate with a wireless device having the best radio wave communication quality among a plurality of wireless devices. It is an object of the present invention to provide a wireless communication system, a wireless communication apparatus, and a wireless communication apparatus control method that can automatically switch connection destinations.

  The present invention is a wireless communication system including a pair of wireless communication devices that perform wireless communication with each other in order to solve the above-described problems of the related art, and each of the wireless communication devices includes a frequency band of a radio wave that transmits and receives signals. A plurality of wireless devices different in at least one of the communication methods, each of the plurality of wireless devices having a short-range wireless communication unit for pairing with a human interface device and performing short-range wireless communication; Wireless communication devices on the receiving side of the wireless communication devices of the wireless communication device are the own station, the wireless communication device of the transmission side is the other station, and among the plurality of wireless devices of the own station, the wireless device is communicating with the wireless device of the other station A first wireless device, a wireless device not communicating with the second wireless device, and a wireless device communicating with the first wireless device among the plurality of wireless devices of the other stations is a third wireless device. The frequency band and the communication method are When the wireless device corresponding to the wireless device is a fourth wireless device, the first wireless device is paired with a first human interface device, and the third wireless device is a second human interface device. The first wireless device is paired, and the first wireless device receives the first communication quality when the first wireless device receives a signal using the radio wave, and the second wireless device receives the signal using the radio wave. A communication quality determination unit for comparing the second communication quality with the second communication quality, and when the second communication quality is better than the first communication quality, A first command transmission control unit configured to control transmission of a connection request command for requesting connection with the wireless device, wherein the second wireless device communicates with each other in response to the connection request command. A set of machines, the first radio and the A connection request for controlling to transmit a connection request to the fourth radio unit in order to switch from the set of three radio units to the set of the second radio unit and the fourth radio unit A transmission control unit; a first pairing disconnection instruction that instructs the first wireless device to disconnect pairing between the first wireless device and the first human interface device; A second wireless device that instructs the fourth wireless device to disconnect the pairing of the third wireless device and the second human interface device to the third wireless device; A second command transmission control unit that controls to transmit a transmission command for instructing to transmit the pairing disconnection command of the second radio, and the fourth radio receives the connection request, In order to establish communication with the other radio, the second A message transmission control unit that controls transmission of a message for accepting a connection with the other radio, and the second pairing disconnection command is transmitted to the third radio in response to the transmission command. And a third command transmission control unit for controlling the first wireless communication device to receive the first pairing disconnect command and disconnect the pairing with the first human interface device. A first pairing disconnection control unit that controls the third wireless device to disconnect the pairing with the second human interface device in response to the second pairing disconnection command; A second pairing / cutting control unit for controlling the first pairing connection control for requesting pairing to the first human interface device. The wireless communication system is characterized in that the fourth wireless device further includes a second pairing connection control unit that requests pairing to the second human interface device. To do.

  In addition, the present invention includes a plurality of radios having at least one of a frequency band of a radio wave for transmitting and receiving a signal and a communication method in order to solve the problems of the above-described conventional technology, and the plurality of radios are respectively A short-range wireless communication unit for pairing with a human interface device for short-range wireless communication, and among the plurality of wireless devices, a wireless device in communication with a wireless device of another station is designated as a first wireless device A wireless device that is not communicating with a wireless device of another station is a second wireless device, and a wireless device that is communicating with the first wireless device among the plurality of wireless devices of the other station is a third wireless device, When a radio device having a frequency band and communication method corresponding to the second radio device is a fourth radio device, the first radio device is paired with a first human interface device, and The first radio is connected to the first radio by the radio wave. A communication quality determination unit that compares the first communication quality when receiving a signal with the second communication quality when the second radio receives a signal by the radio wave, and the second communication When the quality is better than the first communication quality, a first control is performed to transmit a first connection request command requesting the second wireless device to connect to the fourth wireless device. A connection request transmission control unit configured to control the second radio to transmit a connection request to the fourth radio in response to the first connection request command. And a first pairing disconnect command for instructing to disconnect the pairing between the first wireless device and the first human interface device to the first wireless device. A second command transmission control unit and the first human A pairing connection control unit that requests pairing to the interface device, and the first wireless device further receives the first pairing disconnection command and receives the first human interface device. There is provided a wireless communication apparatus characterized by having a pairing / cutting control unit for controlling to cut the pairing.

  Furthermore, the present invention is a method for controlling a wireless communication apparatus including a plurality of wireless devices in which at least one of a frequency band of a radio wave for transmitting and receiving a signal and a communication method is different in order to solve the above-described problems of the related art. Among the plurality of wireless devices, a wireless device in communication with a wireless device in another station is a first wireless device, a wireless device not in communication with a wireless device in another station is a second wireless device, and a plurality of wireless devices in the other station Among the wireless devices, the wireless device in communication with the first wireless device is the third wireless device, and the wireless device whose frequency band and communication method corresponds to the second wireless device is the fourth wireless device. The first wireless device is paired for short-range wireless communication with a first human interface device, and the first wireless device transmits a signal by the radio wave to the first wireless device. The first communication quality at the time of reception, and the second radio The second communication quality when receiving a signal is compared with the second radio quality when the second communication quality is better than the first communication quality. A first connection request command for requesting connection with a radio is transmitted, and the second radio receives the first connection request command and transmits a connection request to the fourth radio. When receiving a message for accepting the connection with the second wireless device from the fourth wireless device, the communication with the fourth wireless device is established, and the first wireless device is Transmitting a first pairing disconnection instruction for instructing to disconnect the pairing between the first wireless device and the first human interface device, and requesting the first human interface device to perform pairing; The first radio further includes the first radio. In response to the pairing disconnection command, to provide a control method for a radio communication apparatus characterized by cutting the pairing with the first human interface device.

  According to the wireless communication system, the wireless communication device, and the control method of the wireless communication device of the present invention, it is possible to automatically select and communicate with a wireless device having the best radio wave communication quality among a plurality of wireless devices. Corresponding to the switching of the machine, it is possible to automatically switch the connection destination of the human interface device by short-range wireless communication.

It is a block diagram which shows the schematic structural example of the radio | wireless communications system of one Embodiment. FIG. 2 is a block diagram illustrating a specific configuration example of the wireless communication apparatus 100 illustrated in FIG. 1, which is a wireless communication apparatus according to an embodiment. FIG. 2 is a block diagram illustrating a specific configuration example of the wireless communication apparatus 200 illustrated in FIG. 1, which is a wireless communication apparatus according to an embodiment. It is a block diagram which shows the functional internal structural example of the control parts 111 and 121 shown by FIG. It is a block diagram which shows the functional internal structural example of the control part 211,221 shown by FIG. It is a sequence diagram which shows an example of operation | movement of the radio | wireless communications system of one Embodiment. It is a sequence diagram which shows an example of operation | movement of the radio | wireless communications system of one Embodiment. It is a sequence diagram which shows an example of operation | movement of the radio | wireless communications system of one Embodiment. 7 is a flowchart showing an operation of the radio device 21 shown in FIGS. 6A to 6C. 7 is a flowchart showing an operation of the radio device 22 shown in FIGS. 6A to 6C. 7 is a flowchart showing an operation of the radio device 12 shown in FIGS. 6A to 6C.

  Hereinafter, a wireless communication system, a wireless communication apparatus, and a wireless communication apparatus control method according to an embodiment will be described with reference to the accompanying drawings.

  First, a schematic configuration example of a wireless communication system according to an embodiment will be described with reference to FIG. The wireless communication system includes a pair of wireless communication devices 100 and 200.

  In FIG. 1, a wireless communication device 100 includes wireless devices 11 to 13 corresponding to a plurality of different frequency bands. The wireless device 11 is a wireless device that transmits and receives an audio signal and the like using UHF band radio waves. The wireless device 12 is a wireless device that transmits and receives an audio signal or the like using VHF band radio waves. The wireless device 13 is a wireless device that transmits and receives audio signals and the like using radio waves in the 700 MHz or 800 MHz band.

  The wireless communication device 100 includes a human interface device 16 that is selectively wirelessly connected to any one of the wireless devices 11 to 13. Here, the wireless device 11 and the human interface device 16 are wirelessly connected, and both perform short-range wireless communication with each other.

  The wireless communication device 200 is configured in the same manner as the wireless communication device 100. The wireless communication apparatus 200 includes wireless devices 21 to 21 corresponding to a plurality of different frequency bands. The wireless device 21 is a wireless device that transmits and receives an audio signal and the like using UHF band radio waves. The wireless device 22 is a wireless device that transmits and receives audio signals and the like using VHF band radio waves. The wireless device 23 is a wireless device that transmits and receives audio signals and the like using radio waves in the 700 MHz or 800 MHz band.

  The wireless communication device 200 includes a human interface device 26 that is selectively wirelessly connected to any one of the wireless devices 21 to 23. Here, the wireless device 21 and the human interface device 26 are wirelessly connected, and both perform short-range wireless communication with each other.

  The wireless communication devices 100 and 200 may include a plurality of wireless devices corresponding to a plurality of different communication methods. When the communication method is different, for example, an analog method and a digital method, the frequency band to be used may be the same. The wireless communication devices 100 and 200 are configured to include at least two wireless devices in which at least one of a frequency band of a radio wave for transmitting and receiving a signal and a communication method are different and a set of the frequency band and the communication method is not the same. That's fine.

  The wireless device 11 and the wireless device 21 correspond to each other in frequency band and communication method and can communicate with each other. The wireless device 12 and the wireless device 22 correspond to each other in frequency band and communication method, and can communicate with each other. The wireless device 13 and the wireless device 23 correspond to each other in frequency band and communication method and can communicate with each other.

  The wireless communication device 100 and the wireless communication device 200 are located at a distance from each other. The wireless communication devices 100 and 200 may be mobile stations.

  The wireless device 11 and the wireless device 12 transmit and receive audio signals and the like through the repeater 301 by a half-duplex communication method. The wireless device 12 and the wireless device 22 transmit and receive audio signals and the like through the repeater 302 by a half-duplex communication method. The wireless device 13 and the wireless device 23 transmit and receive audio signals and the like through the repeater 303 by a half-duplex communication method.

  The radios 11 to 13 and the radios 21 to 23 may transmit and receive signals using a trunking method using a control channel and a communication channel, or use a conventional method using communication channels of a plurality of frequencies. Signals may be sent and received.

  The short-range wireless communication used by the wireless devices 11 to 13 and the human interface device 16 is communication in a narrow communication area as compared to the wide-area wireless communication used by the wireless devices 11 to 13 and the wireless devices 21 to 23. For example, the communication is in a communication area of about several meters to several tens of meters. The wireless devices 11 to 13 and the human interface device 16 may perform short-range wireless communication using an arbitrary communication standard such as Bluetooth (registered trademark).

  The same applies to the short-range wireless communication used by the wireless devices 21 to 23 and the human interface device 26.

  A specific configuration example of the wireless communication device 100 will be described with reference to FIG. The wireless device 11 includes a control unit 111 that controls the entire wireless device 11, a wireless transmission / reception unit 112 that transmits and receives audio signals and the like to and from other wireless devices such as the wireless device 21 using a half-duplex communication method, and a human interface device 16. A short-range wireless communication unit 113 for short-range wireless communication, and a memory 114. The memory 114 is connected to the control unit 111.

  The wireless device 12 includes a control unit 121 that controls the entire wireless device 12, a wireless transmission / reception unit 122 that transmits and receives audio signals and the like to and from other wireless devices such as the wireless device 22 using a half-duplex communication method, and a human interface device 16. A short-range wireless communication unit 123 for short-range wireless communication, and a memory 124. The memory 124 is connected to the control unit 121.

  The wireless device 13 includes a control unit 131 that controls the entire wireless device 13, a wireless transmission / reception unit 132 that transmits and receives audio signals and the like to and from other wireless devices such as the wireless device 23 by the half-duplex communication method, and the human interface device 16. A short-range wireless communication unit 133 for performing short-range wireless communication, and a memory 134. The memory 134 is connected to the control unit 131.

  The control units 111, 121, and 131 can be configured by a microprocessor (CPU). The wireless transmission / reception units 112, 122, 132 and the short-range wireless communication units 113, 123, 133 can be configured by wireless transmission / reception circuits. The memories 114, 124, and 134 are arbitrary storage devices such as a semiconductor memory, and may be ROM.

  Each set of the control units 111, 121, 131 and the memories 114, 124, 134 connected to each other may be constituted by a microcomputer. The radio devices 11 to 13 may be configured so that operations described later are executed by a computer program. In this case, the memories 114, 124, and 134 may be non-transitory storage media that can be read by a computer that stores computer programs.

  Here, the human interface device 16 is a speaker microphone and is hereinafter referred to as a speaker microphone 16. The speaker microphone 16 includes a speaker 161, a microphone 162, a short-range wireless communication unit 163, and a PTT (Push to Talk) switch 164.

  The wireless devices 11 to 13 are connected to the head units 14 and 15 by an interface cable 17. The head units 14 and 15 are operation panels of the wireless devices 11 to 13 and can operate any of the selected wireless devices 11 to 13.

  Each of the head units 14 and 15 includes a speaker, an operation unit for changing a channel and adjusting a volume, and a display unit such as a liquid crystal panel. The audio signal received by any of the radio units 11 to 13 can be reproduced by the speaker of the head unit 14, and the audio signal received by any of the radio units 11 to 13 can be reproduced by the speaker of the head unit 15. it can.

  In FIG. 1 and FIG. 2, the wireless device 11 and the speaker microphone 16 are paired, and an audio signal received by the wireless device 11 can be reproduced by the speaker 161 of the speaker microphone 16.

  The radio units 11 to 13 can be operated by the operation unit of the head units 14 and 15, and information on the radio units 11 to 13 can be displayed on the display units of the head units 14 and 15. Note that the configuration in which the wireless communication apparatus 100 includes the two head portions 14 and 15 is not essential, and a configuration in which one head portion is provided may be used.

  As shown in FIG. 3, the specific configuration of wireless communication apparatus 200 is the same as the specific configuration of wireless communication apparatus 100 shown in FIG. Each of the radio devices 21 to 23 includes control units 211, 221, 231, wireless transmission / reception units 212, 222, 232, short-range wireless communication units 213, 223, 233, and memories 214, 224, 234, respectively.

  The radio devices 21 to 23 are connected to the head units 24 and 25 by an interface cable 27. Also in the wireless communication apparatus 200, the human interface device 26 is a speaker microphone, and is hereinafter referred to as a speaker microphone 26. Similarly to the speaker microphone 16, the speaker microphone 26 includes a speaker 261, a microphone 262, a short-range wireless communication unit 263, and a PTT switch 264.

  The circuits inside the wireless devices 11 to 13, the wireless devices 21 to 23, and the speaker microphones 16 and 26 may be configured by an integrated circuit. The internal configurations of the wireless devices 11 to 13, the wireless devices 21 to 23, and the speaker microphones 16 and 26 may be configured by hardware, software, or a mixture of both. Good. Use of hardware and software is optional.

  FIG. 4 shows a functional internal configuration of the control units 111 and 121. The control unit 111 includes a pairing connection control unit 1111, a pairing disconnection control unit 1112, a communication quality determination unit 1113, a command transmission control unit 1114, a command analysis unit 1115, a connection request transmission control unit 1116, a message transmission control unit 1117, a message An analysis unit 1118 is included.

  The control unit 121 includes a pairing connection control unit 1211, a pairing disconnection control unit 1212, a communication quality determination unit 1213, a command transmission control unit 1214, a command analysis unit 1215, a connection request transmission control unit 1216, a message transmission control unit 1217, a message An analysis unit 1218 is included. The functional internal configuration of the control unit 131 is the same as that of the control units 111 and 121.

  In FIG. 4, in an example of the operation of the wireless communication system shown in FIGS. 6A to 6C described later, a part that actually operates is indicated by a solid line, and a part that does not operate is indicated by a broken line. In the control unit 111, a pairing connection control unit 1211, a pairing disconnection control unit 1212, and a command analysis unit 1215 operate. In the control unit 121, a pairing connection control unit 1211, a command transmission control unit 1214, a command analysis unit 1215, and a message transmission control unit 1217 operate.

  FIG. 5 shows a functional internal configuration of the control units 211 and 221. The control unit 211 includes a pairing connection control unit 2111, a pairing disconnection control unit 2112, a communication quality determination unit 2113, a command transmission control unit 2114, a command analysis unit 2115, a connection request transmission control unit 2116, a message transmission control unit 2117, a message An analysis unit 2118 is included.

  The control unit 221 includes a pairing connection control unit 2211, a pairing disconnection control unit 2212, a communication quality determination unit 2213, a command transmission control unit 2214, a command analysis unit 2215, a connection request transmission control unit 2216, a message transmission control unit 2217, a message An analysis unit 2218 is included. The functional internal configuration of the control unit 231 is the same as that of the control units 211 and 221.

  Also in FIG. 5, in an example of the operation of the wireless communication system shown in FIGS. 6A to 6C described later, a part that actually operates is indicated by a solid line, and a part that does not operate is indicated by a broken line. In the control unit 211, a pairing connection control unit 2111, a pairing disconnection control unit 2112, a communication quality determination unit 2113, a command transmission control unit 2114, and a command analysis unit 2115 operate. In the control unit 221, a pairing connection control unit 2211, a communication quality determination unit 2113, a command transmission control unit 2214, a command analysis unit 2215, a connection request transmission control unit 2216, and a message analysis unit 2218 operate.

  Each component in the control units 111, 121, 211, and 221 illustrated in FIGS. 4 and 5 may be a process executed by a computer program. In this case, only necessary processing indicated by a solid line may be executed by the computer program.

  An example of the operation of the wireless communication system will be described with reference to the sequence diagrams shown in FIGS. 6A to 6C. Assume that the wireless device 11 of the wireless communication device 100 and the wireless device 21 of the wireless communication device 200 are communicating, and the wireless device 11 is operating as a transmitter and the wireless device 21 is operating as a receiver. The wireless communication device 200 on the reception side is the own station, and the wireless communication device 100 on the transmission side is another station.

  In addition, at the time of starting of the wireless communication devices 100 and 200, which set is selected and communicated among the three sets of the wireless devices 11 to 13 and the wireless devices 21 to 23 is arbitrary. A preset group may start communication, or a group that starts communication may be manually selected. A group having the best communication quality among the three groups may be automatically selected.

  In FIG. 6A, the wireless device 11 transmits an audio signal to the wireless device 21 through a call channel in step S111. The radio devices 12 and 13 are waiting on the control channel in steps S121 and S131, respectively.

  The speaker microphone 16 is paired with the wireless device 11 under the control of the pairing connection control unit 1111 in step S161. The user presses the PTT switch 164 of the speaker microphone 16 to transmit sound to the wireless device 21.

  The wireless device 21 receives the audio signal from the wireless device 11 in step S211. The radio devices 22 and 23 are waiting on the control channel in steps S221 and S231, respectively. The speaker microphone 26 is paired with the wireless device 21 under the control of the pairing connection control unit 2111 in step S261. The user listens to the voice of the user at the other station through the speaker microphone 26.

  In step S212, the wireless device 21 detects that the RSSI (Received Signal Strength Indication) level of the communication channel that receives the audio signal from the wireless device 11 has decreased. The communication quality determination unit 2113 monitors the RSSI level when the wireless device 21 receives a signal, and detects that the RSSI level has dropped below the threshold.

  The RSSI level is an example of communication quality information indicating whether or not the communication quality is good. A bit error rate may be used as communication quality information instead of the RSSI level. The fact that the RSSI level has decreased below the threshold means that the communication quality between the wireless device 11 and the wireless device 21 has deteriorated.

  In response to detecting that the RSSI level has dropped below the threshold, the wireless device 21 receives another wireless device (in this case, wireless) via the interface cable 27 in steps S213 and S214. Request the machine 22, 23) to send the RSSI level. The wireless device 21 may transmit the RSSI level transmission request to the wireless devices 22 and 23 simultaneously.

  In step S222, the radio device 22 executes a process corresponding to the RSSI level transmission request. Specifically, the wireless device 22 requests the repeater 302 to allocate a call channel with the wireless device 12 via the control channel.

  In step S3021, the repeater 302 assigns a call channel between the wireless device 12 and the wireless device 22, and temporarily switches communication between the wireless device 12 and the wireless device 22 from the control channel to the call channel.

  In step S122, the wireless device 12 executes a process corresponding to the request for RSSI level transmission. Specifically, the wireless device 12 transmits test data for determining the RSSI level to the wireless device 22 via the repeater 302. The test data may be, for example, 1 kHz tone data or pseudo noise. Test data is stored in the memory 124 in advance, and the control unit 121 may control to transmit the test data read from the memory 124.

  Thereafter, communication between the wireless device 12 and the wireless device 22 is returned to the control channel.

  In step S223, the wireless device 22 determines the RSSI level based on the received test data, and transmits the determination result to the wireless device 21 via the interface cable 27. The communication quality determination unit 2213 determines the RSSI level based on the received test data.

  Similarly, in step S232, the wireless device 23 executes processing corresponding to the RSSI level transmission request. Specifically, the wireless device 23 requests the repeater 303 to allocate a communication channel with the wireless device 13 via the control channel.

  In step S3031, the repeater 303 assigns a call channel between the wireless device 13 and the wireless device 23, and temporarily switches communication between the wireless device 13 and the wireless device 23 from the control channel to the call channel.

  In step S132, the wireless device 13 executes processing corresponding to the RSSI level transmission request. Specifically, the wireless device 13 transmits similar test data to the wireless device 23 via the repeater 303. Test data is stored in the memory 134 in advance, and the control unit 131 may control to transmit the test data read from the memory 134.

  Thereafter, communication between the wireless device 13 and the wireless device 23 is returned to the control channel.

  In step S233, the wireless device 23 determines the RSSI level based on the received signal, and transmits the determination result to the wireless device 21 via the interface cable 27.

  6B, in step S215, the wireless device 21 receives the RSSI level when the wireless device 21 receives the signal, the RSSI level when the wireless device 22 receives the signal, and the wireless device 23 receives the signal. The RSSI level at the time of reception is compared to determine which is the highest value.

  The communication quality determination unit 2113 compares the RSSI levels of the radio devices 21 to 23 to determine which radio device has the highest RSSI level. Here, it is assumed that the RSSI level of the wireless device 22 is determined to be the highest. If there is no difference in the RSSI level, the radio device 21 may be selected.

  In step S216, the wireless device 21 transmits a command (connection request command) for requesting connection to the wireless device 12 to the wireless device 22 via the interface cable 27.

  When the communication quality in the wireless device 22 (or the wireless device 23) is better than the communication quality in the wireless device 21, the command transmission control unit 2114 sends the wireless device 12 (or the wireless device 23) to the wireless device 12 (or What is necessary is just to control so that the connection request command which requests | requires connecting with the radio | wireless machine 13) may be transmitted.

  When receiving the connection request command, the wireless device 22 transmits a connection request to the wireless device 12 via the repeater 302 in step S224. The command analysis unit 2215 analyzes the received command, and if the result of the analysis is a connection request command, the connection request transmission control unit 2216 may be controlled to transmit a connection request to the wireless device 12.

  Specifically, as in step S3021, the repeater 302 assigns a call channel between the wireless device 12 and the wireless device 22 and controls communication between the wireless device 12 and the wireless device 22 in step S3022. Switch from channel to call channel.

  In step S123, the wireless device 12 receives the connection request from the wireless device 22, and transmits a message indicating acceptance of the connection to the wireless device 22 via the repeater 302. The message transmission control unit 1217 controls the wireless device 22 to transmit a message indicating that the connection is accepted.

  The message analysis unit 2218 analyzes the received message, and if the result of the analysis is a message indicating acceptance, the wireless device 22 establishes communication with the wireless device 12. As a result, the wireless device 12 and the wireless device 22 establish communication with each other in steps S124 and S225, and enter a communication state.

  As described above, the state in which the set of the wireless device 11 and the wireless device 21 is communicating is switched to the state in which the set of the wireless device 12 and the wireless device 22 is communicating. As will be described later, the pairing between the wireless device 11 and the speaker microphone 16 is cut, and the sound collected by the speaker microphone 16 cannot be transmitted by the wireless device 11. Therefore, it is not necessary to control to end the transmission of the audio signal by the wireless device 11.

  In step S226, the wireless device 22 transmits a command instructing to switch the pairing with the speaker microphone 16 from the wireless device 11 to the wireless device 12. Specifically, the command transmission control unit 2214 instructs the wireless device 12 to instruct the wireless device 12 to disconnect the wireless device 11 from the pairing of the wireless device 11 and the speaker microphone 16 (pairing). A transmission command instructing to transmit a disconnection command is transmitted.

  At the same time, the wireless device 22 transmits a command (pairing disconnection command) instructing the wireless device 21 to disconnect the pairing with the speaker microphone 26 via the interface cable 27 in step S227.

  When the wireless device 12 receives the transmission command from the wireless device 22, in step S 125, the wireless device 12 issues a pairing disconnect command that instructs the wireless device 11 to disconnect the pairing with the speaker microphone 16 via the interface cable 17. Send.

  The command analysis unit 1215 analyzes the received command, and if the result of the analysis is a transmission command, the command transmission control unit 1214 may transmit a pairing disconnect command to the wireless device 11.

  Subsequently, in FIG. 6C, when the wireless device 21 receives a pairing disconnect command instructing to disconnect the pairing with the speaker microphone 26, the wireless device 21 disconnects the pairing with the speaker microphone 26 in step S <b> 217.

  The command analysis unit 2115 analyzes the received command, and if the result of the analysis is a pairing disconnection command, the pairing disconnection control unit 2112 may be controlled to disconnect the pairing with the speaker microphone 26. The speaker microphone 26 cancels the pairing with the wireless device 21 in step S262.

  When the wireless device 11 receives a pairing disconnection instruction that instructs to disconnect the pairing with the speaker microphone 16, the wireless device 11 disconnects the pairing with the speaker microphone 16 in step S112.

  The command analysis unit 1115 analyzes the received command, and if the result of the analysis is a pairing disconnection command, the pairing disconnection control unit 1112 may be controlled to disconnect the pairing with the speaker microphone 16. The speaker microphone 16 cancels the pairing with the wireless device 11 in step S162.

  After step S227, the radio device 22 requests pairing to the speaker microphone 26 in step S228. The pairing connection control unit 2211 controls the speaker microphone 26 to request pairing. The wireless device 22 continues to request pairing until it is paired with the speaker microphone 26 in step S228.

  After step S125, the wireless device 12 requests the speaker microphone 16 for pairing in step S126. The pairing connection control unit 1211 controls the speaker microphone 16 to request pairing. The wireless device 12 continues to request pairing until it is paired with the speaker microphone 16 in step S126.

  Then, the speaker microphone 26 establishes pairing with the wireless device 22 in step S263, and the speaker microphone 16 establishes pairing with the wireless device 12 in step S163.

  It is assumed that the user of the other station continues pressing the PTT switch 164 of the speaker microphone 16 and transmitting the voice to the user of the own station. The communication between the user of the other station and the user of the own station is automatically switched from the communication of the set of wireless devices 11 and 21 to the communication of the set of wireless devices 12 and 22 by the above processing.

  When the transmission / reception of the voices by the users is switched to the communication by the set of the radio units 12 and 22, the radio unit 12 transmits an audio signal to the radio unit 22 in step S127, and the radio unit 22 transmits the audio signal in step S229. Receive a signal.

  The voice is interrupted for a moment by switching from the communication of the wireless devices 11 and 21 to the communication of the wireless devices 12 and 22, but since it is very short time, it hardly interferes with the conversation between users. Absent.

  Furthermore, using FIG. 7 to FIG. 9, the operations of the radio device 21 that is receiving the audio signal, the radio device 22 with the highest RSSI level, and the radio device 12 that newly operates as a transmitter will be described again. To do.

  In FIG. 7, the wireless device 21 receives the audio signal from the wireless device 11 in step S2101. Step S2101 corresponds to step S211 in FIG. 6A. In step S2102, the radio device 21 determines whether or not the RSSI level is equal to or higher than a preset threshold value. If the RSSI level is equal to or higher than the threshold (YES), the radio device 21 repeats the process of step S2102.

  If the RSSI level is not equal to or higher than the threshold (NO), the radio device 21 requests the radio devices 22 and 23 to notify the RSSI level in step S2103. Step S2102 corresponds to step S212 in FIG. 6A, and step S2103 corresponds to steps S213 and S214 in FIG. 6A.

  In step S2104, the wireless device 21 determines whether its own RSSI level is the highest. Step S2104 corresponds to part of the processing of step S215 in FIG. 6B. If its own RSSI level is the highest (YES), the radio device 21 continues pairing with the speaker microphone 26 in step S2105. If the RSSI level is not the highest (NO), the radio device 21 shifts the processing to step S2109.

  In step S2106, the radio device 21 determines whether or not a predetermined time has elapsed. If the predetermined time has not elapsed (NO), the radio device 21 repeats the process of step S2106. When the predetermined time has elapsed (YES), the radio device 21 requests the radio devices 22 and 23 to notify the RSSI level again in step S2107, and in step S2108, determines whether or not its own RSSI level is the highest. judge. Step S2108 corresponds to part of the processing of step S215 in FIG. 6B.

  If the own RSSI level is the highest (YES), the radio device 21 returns the process to step S2105. If the own RSSI level is not the highest (NO), the radio device 21 moves the process to step S2109.

  That is, the radio device 21 starts a timer, checks the RSSI levels of the radio devices 21 to 23 every predetermined time, and continues pairing with the speaker microphone 26 as long as the RSSI level of the radio device 21 continues to be the highest. Let

  If the RSSI level is not the highest, the wireless device 21 transmits a connection request command instructing the wireless device 22 having the highest RSSI level to transmit a connection request in step S2109. The process of determining the radio with the highest RSSI level in step S2109 corresponds to a part of the process of step S215 in FIG. 6B. Further, the process of transmitting the command in step S2109 corresponds to the process of step S216 in FIG. 6B.

  In step S2110, the wireless device 21 waits for a pairing disconnection command with the speaker microphone 26.

  In FIG. 8, the wireless device 22 receives a connection request command instructing the wireless device 12 to transmit a connection request in step S2201. The wireless device 22 transmits a connection request to the wireless device 12 in step S2202. Step S2202 corresponds to step S224 in FIG. 6B.

  In step S2203, the wireless device 22 transmits to the wireless device 12 a transmission command that instructs the wireless device 12 to transmit a command to disconnect the pairing with the speaker microphone 16 to the wireless device 11. Step S2203 corresponds to step S226 in FIG. 6B.

  In step S2204, the wireless device 22 transmits a pairing disconnection command for disconnecting pairing with the speaker microphone 26 to the wireless device 21. Step S2204 corresponds to step S227 in FIG. 6B.

  In step S2205, the wireless device 22 requests the speaker microphone 26 for pairing. Step S2205 corresponds to step S228 in FIG. 6C. The radio device 22 establishes pairing with the speaker microphone 26 in step S2206.

  In FIG. 9, the wireless device 12 receives a connection request from the wireless device 22 in step S1201, and transmits a message indicating that the connection is accepted to the wireless device 22 in step S1202. Steps S1201 and S1202 correspond to step S123 in FIG. 6B.

  In step S1203, the wireless device 12 receives from the wireless device 22 a transmission command that instructs the wireless device 11 to transmit an instruction to disconnect the pairing with the speaker microphone 16. In step S1204, the wireless device 12 transmits a pairing disconnection instruction that instructs the wireless device 11 to disconnect the pairing with the speaker microphone 16. Step S1204 corresponds to step S125 in FIG. 6B or 6C.

  The wireless device 12 requests pairing to the speaker microphone 16 in step S1205, and establishes pairing to the speaker microphone 16 in step S1206. Step S1205 corresponds to step S126 in FIG. 6C.

  In step S1207, the wireless device 12 determines whether or not the speaker microphone 16 maintains the transmission state. If the PTT switch 164 is pressed, the transmission state is maintained.

  If the speaker microphone 16 maintains the transmission state (YES), the wireless device 12 continues the voice transmission in step S1208, and if the speaker microphone 16 does not maintain the transmission state (NO), step S1209. In the standby state. Step S1208 corresponds to step S127 in FIG. 6C.

  In the example of the operation of the wireless communication system illustrated in FIGS. 6A to 6C, a case where the set of the wireless device 11 and the wireless device 21 is communicating is taken as an example. Even when a pair of the wireless device 12 and the wireless device 22 or a pair of the wireless device 13 and the wireless device 23 is in communication, the control for switching the wireless device pair to be communicated according to the communication quality is executed. Is done.

  The present invention is not limited to the embodiment described above, and various modifications can be made without departing from the scope of the present invention.

11-13, 21-23 Radio 16, 26 Speaker microphone (human interface device)
111, 121, 131, 211, 212, 231 Control unit 113, 123, 133, 213, 223, 233 Short-range wireless communication unit
1111, 1211, 2111, 2211 Pairing connection controller
1112, 1212, 2112, 2212 Pairing cutting control unit
1113, 1213, 2113, 2213 Communication quality judgment unit
1114, 1214, 2114, 2214 Command transmission controller
1116, 1216, 2116, 2216 Connection request transmission controller
1117, 1217, 2117, 2217 Message transmission controller

Claims (4)

A wireless communication system comprising a pair of wireless communication devices that wirelessly communicate with each other,
Each of the wireless communication devices includes a plurality of wireless devices in which at least one of a frequency band of a radio wave for transmitting / receiving a signal and a communication method is different,
Each of the plurality of wireless devices has a short-range wireless communication unit for pairing with a human interface device to perform short-range wireless communication,
Of the pair of wireless communication devices, the receiving-side wireless communication device is the own station, the transmitting-side wireless communication device is the other station, and among the plurality of wireless devices of the own station, communicating with the wireless device of the other station The first wireless device, the second wireless device not in communication with the second wireless device, and the third wireless device in communication with the first wireless device among the plurality of wireless devices in the other stations. When a wireless device, a frequency band and a communication method corresponding to the second wireless device is a fourth wireless device, the first wireless device is paired with a first human interface device, and 3 radio is paired with the second human interface device,
The first radio is
Communication quality for comparing the first communication quality when the first wireless device receives a signal with the radio wave and the second communication quality when the second wireless device receives a signal with the radio wave. A determination unit;
When the second communication quality is better than the first communication quality, the second wireless device is controlled to transmit a connection request command for requesting connection to the fourth wireless device. A first command transmission control unit;
Have
The second radio is
In response to the connection request command, a set of radios that communicate with each other is changed from the set of the first radio set and the third radio set to the second radio set and the fourth radio set. A connection request transmission control unit that controls to transmit a connection request to the fourth wireless device in order to switch to a set;
A first pairing disconnection instruction for instructing the first wireless device to disconnect the pairing between the first wireless device and the first human interface device; and On the other hand, a second pairing disconnection instruction instructing the fourth radio to disconnect the pairing of the third radio and the second human interface device to the third radio A second command transmission control unit for controlling to transmit a transmission command for instructing to transmit,
Have
The fourth radio is
A message transmission control unit that controls to transmit a message for accepting a connection with the second wireless device in order to establish communication with the second wireless device in response to the connection request;
A third command transmission control unit that receives the transmission command and controls the third wireless device to transmit the second pairing disconnection command;
Have
The first wireless device further includes a first pairing / cutting control unit that receives the first pairing / cutting command and controls to cut the pairing with the first human interface device. ,
The third wireless device has a second pairing disconnection control unit that receives the second pairing disconnection command and controls to disconnect the pairing with the second human interface device,
The second wireless device further includes a first pairing connection control unit that requests pairing to the first human interface device,
The wireless communication system, wherein the fourth wireless device further includes a second pairing connection control unit that requests pairing to the second human interface device. Provided with a plurality of radios that differ in at least one of the frequency band and communication method of radio waves for transmitting and receiving signals,
Each of the plurality of wireless devices has a short-range wireless communication unit for pairing with a human interface device to perform short-range wireless communication,
Among the plurality of wireless devices, a wireless device in communication with a wireless device in another station is a first wireless device, a wireless device not in communication with a wireless device in another station is a second wireless device, and a plurality of wireless devices in the other station Among the wireless devices, the wireless device in communication with the first wireless device is the third wireless device, and the wireless device whose frequency band and communication method corresponds to the second wireless device is the fourth wireless device. The first radio is paired with a first human interface device;
The first radio is
Communication quality comparing the first communication quality when the first wireless device receives a signal with the radio wave and the second communication quality when the second wireless device receives a signal with the radio wave. A determination unit;
When the second communication quality is better than the first communication quality, a first connection request command for requesting connection to the fourth wireless device is transmitted to the second wireless device. A first command transmission control unit for controlling
Have
The second radio is
A connection request transmission control unit that receives the first connection request command and controls to transmit a connection request to the fourth wireless device;
Controlling to transmit a first pairing disconnection instruction to instruct the first wireless device to disconnect the pairing between the first wireless device and the first human interface device; A command transmission control unit;
A pairing connection control unit for requesting pairing to the first human interface device;
Have
The first wireless device further includes a pairing disconnection control unit that receives the first pairing disconnection command and controls to disconnect the pairing with the first human interface device. Wireless communication device. The third radio is paired with a second human interface device,
The second command transmission control unit is further configured to send the fourth radio to the third radio and the second human to the third radio. The wireless communication apparatus according to claim 2, wherein the wireless communication device is controlled to transmit a transmission command instructing to transmit a second pairing disconnection command instructing to disconnect the pairing with the interface device. A method for controlling a wireless communication device including a plurality of wireless devices in which at least one of a frequency band of a radio wave for transmitting and receiving a signal and a communication method is different,
Among the plurality of wireless devices, a wireless device in communication with a wireless device in another station is a first wireless device, a wireless device not in communication with a wireless device in another station is a second wireless device, and a plurality of wireless devices in the other station Among the wireless devices, the wireless device in communication with the first wireless device is the third wireless device, and the wireless device whose frequency band and communication method corresponds to the second wireless device is the fourth wireless device. The first radio is paired for near field communication with a first human interface device;
The first radio is
Comparing the first communication quality when the first radio receives a signal with the radio wave and the second communication quality when the second radio receives a signal with the radio wave;
When the second communication quality is better than the first communication quality, a first connection request command for requesting the second wireless device to connect to the fourth wireless device is transmitted. ,
The second radio is
In response to the first connection request command, a connection request is transmitted to the fourth wireless device,
When receiving a message for accepting a connection with the second wireless device from the fourth wireless device, establishing communication with the fourth wireless device;
Transmitting a first pairing disconnection instruction to instruct the first wireless device to disconnect the pairing of the first wireless device and the first human interface device;
Request pairing to the first human interface device;
The wireless communication apparatus control method, wherein the first wireless device further receives the first pairing disconnection command and disconnects the pairing with the first human interface device.

Images