WO2011048914A1 - 携帯無線端末、無線端末、無線通信システムおよび無線通信方法 - Google Patents

携帯無線端末、無線端末、無線通信システムおよび無線通信方法 Download PDF

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Publication number
WO2011048914A1
WO2011048914A1 PCT/JP2010/066786 JP2010066786W WO2011048914A1 WO 2011048914 A1 WO2011048914 A1 WO 2011048914A1 JP 2010066786 W JP2010066786 W JP 2010066786W WO 2011048914 A1 WO2011048914 A1 WO 2011048914A1
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WO
WIPO (PCT)
Prior art keywords
channel
wireless terminal
unit
trigger
wireless communication
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2010/066786
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English (en)
French (fr)
Japanese (ja)
Inventor
康宏 長谷川
学 石関
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Olympus Corp
Olympus Medical Systems Corp
Original Assignee
Olympus Corp
Olympus Medical Systems Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Olympus Corp, Olympus Medical Systems Corp filed Critical Olympus Corp
Priority to EP10824763.6A priority Critical patent/EP2478823B1/en
Priority to CN201080046671.1A priority patent/CN102686144B/zh
Publication of WO2011048914A1 publication Critical patent/WO2011048914A1/ja
Priority to US13/448,972 priority patent/US9002285B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00002—Operational features of endoscopes
    • A61B1/00011—Operational features of endoscopes characterised by signal transmission
    • A61B1/00016—Operational features of endoscopes characterised by signal transmission using wireless means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00002—Operational features of endoscopes
    • A61B1/00059—Operational features of endoscopes provided with identification means for the endoscope
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/02—Selection of wireless resources by user or terminal

Definitions

  • the present invention relates to a mobile wireless terminal, a wireless terminal, a wireless communication system, and a wireless communication method.
  • a wireless endoscope system has also been devised in which the connection between the scope and the processor is made wireless.
  • the restriction of the operation by the signal cable is alleviated, and the operability is improved.
  • the electronic endoscope system connected by the signal cable it is necessary to insulate between the scope and the processor to ensure safety, but in the wireless endoscope system, electrical connection is achieved by wireless. Because it does not exist, the configuration necessary for the insulation is not necessary.
  • the wireless endoscope system in order to perform better data communication between the processor and a plurality of wireless endoscopes or between the processor and other wireless communication devices, interference due to wireless communication is considered. There is a need to.
  • a method is employed in which a radio wave condition in the surroundings is confirmed before starting communication, and a channel having a low influence of interference is selected to start communication.
  • a processor periodically receives a usage channel report from a scope operating in the surrounding area, stores usage channel information, and receives an unused channel when a channel assignment request signal is received from a target scope.
  • An electronic endoscope system that is automatically assigned and used as a channel for the scope is known (see, for example, Patent Document 1).
  • the present invention provides a portable wireless terminal, a wireless terminal, a wireless communication system, and a wireless communication method capable of changing a channel used for communication between wireless terminals after setting a channel used for communication between wireless terminals.
  • a wireless terminal for performing self-supporting distributed wireless communication with a mobile wireless terminal wherein the wireless terminal includes a channel setting unit for setting a channel for performing wireless communication with the mobile wireless terminal; a trigger receiving unit for receiving a trigger; A vacant channel is searched according to the accepted trigger, and a vacant channel search unit for sending a signal for changing the set channel to the channel setting unit according to the search result, and reporting the change to the portable wireless terminal And a transmitter for transmitting a signal to be transmitted.
  • the channel setting unit may set the channel prior to receiving a signal transmitted from the portable wireless terminal.
  • the free channel search unit may send a signal for changing the channel to the channel setting unit while performing wireless communication with the portable wireless terminal using the channel.
  • the trigger receiving unit may receive the trigger from the mobile wireless terminal.
  • the wireless terminal may be a processor unit of a wireless endoscope system.
  • a channel setting unit for setting a channel for performing radio communication with the mobile radio terminal, a trigger receiving unit for receiving a trigger, and a vacant channel according to the received trigger are searched, and the set channel is determined by the search result.
  • the sending unit may send the trigger when starting wireless communication with the wireless terminal.
  • the sending unit may send the trigger while performing wireless communication with the wireless terminal.
  • the portable wireless terminal may be an endoscope scope of a wireless endoscope system.
  • a wireless communication system in which a portable wireless terminal and a wireless terminal perform self-sustaining distributed wireless communication, and the portable wireless terminal sends a trigger for causing the wireless terminal to search for an available channel to the wireless terminal.
  • the wireless terminal includes a channel setting unit for setting a channel for performing wireless communication with the portable wireless terminal, a trigger receiving unit for receiving a trigger transmitted from the portable wireless terminal, and the received trigger Accordingly, the idle channel is searched according to the search result, and an idle channel search unit for sending out a signal for changing the set channel to the channel setting unit and a signal for reporting the change to the mobile wireless terminal are transmitted. And a transmitting unit.
  • the channel setting unit may set the channel prior to receiving a signal transmitted from the portable wireless terminal.
  • the free channel search unit may send a signal for changing the channel to the channel setting unit while performing wireless communication with the portable wireless terminal using the channel.
  • the receiving unit receives a trigger sent from the portable wireless terminal, and the free channel search unit of the wireless terminal searches for a free channel in response to the received trigger, and the search result is based on the search result.
  • the setting of the channel may be performed prior to receiving the signal transmitted from the portable wireless terminal.
  • the transmission of the signal for changing the channel may be performed while performing wireless communication with the portable wireless terminal using the channel.
  • the wireless terminal of the present invention sets a channel used for communication between wireless terminals and then receives a trigger, it searches for an available channel, changes the set channel based on the result of the search, and further the other wireless terminal Send a signal to report that the channel has been changed. Therefore, after setting the channel used for communication between wireless terminals, the channel used for communication between wireless terminals can be changed.
  • FIG. 2 is a block diagram showing the configuration of the endoscope in the first embodiment of the present invention.
  • FIG. 2 is a block diagram showing a configuration of a processor in the first embodiment of the present invention. It is the sequence diagram which showed the flow of processing with the endoscope scope and processor in a 1st embodiment of the present invention. It is the flow chart which showed the operation procedure of the endoscope scope in a 1st embodiment of the present invention. It is the flowchart which showed the operation
  • an autonomous distributed wireless communication system for example, wireless LAN (Local Area Network, local communication network)) , ZigBee (registered trademark) (ZigBee), Bluetooth (registered trademark) (Bluetooth), millimeter wave radio, wireless communication system using body area wireless, etc.).
  • a self-supporting distributed wireless communication system for example, wireless LAN (Local Area Network, local communication network)
  • ZigBee registered trademark
  • Bluetooth registered trademark
  • millimeter wave radio millimeter wave radio
  • FIG. 1 is a schematic view showing the configuration of a wireless endoscope system (wireless communication system) in the present embodiment.
  • the wireless endoscope system includes an endoscope scope 1 (portable wireless terminal) and a processor 2 (wireless terminal, processor device).
  • the endoscope scope 1 and the processor 2 are connected in a mutually communicable state by self-supporting distributed wireless communication in which communication is performed without using a base station, an access point or the like.
  • the endoscope 1 is inserted into a body cavity of a patient, takes an image in the body cavity, and wirelessly transmits the taken image to the processor 2.
  • the processor 2 receives an image wirelessly transmitted from the endoscope scope 1 and displays the received image on a monitor.
  • FIG. 2 is a block diagram showing the configuration of the endoscope scope 1 in the present embodiment.
  • the endoscope scope 1 includes an imaging unit 11, a transmission unit 12, an antenna 13, a reception unit 14, an available channel search request transmission unit 15, a network search unit 16, and a channel report detection unit. 17 and a channel setting unit 18.
  • the imaging unit 11 performs imaging inside a body cavity, acquires an image, and performs A / D conversion (analog-digital conversion) or the like of acquired image data.
  • the transmission unit 12 modulates and transmits a radio signal.
  • the antenna 13 transmits and receives radio waves.
  • the receiver 14 receives and demodulates a radio signal.
  • the free channel search request transmission unit 15 notifies a free channel search request (trigger).
  • the network search unit 16 searches for the processor 2 that is the connection destination.
  • the channel report detection unit 17 acquires a free channel search result included in the channel report received from the processor 2.
  • the channel setting unit 18 sets channels used for transmission and reception of radio signals in the transmission unit 12 and the reception unit 14.
  • the available channel search request transmission unit 15 notifies the transmission unit 12 and the network search unit 16 of an available channel search request.
  • the network search unit 16 searches for the processor 2 as the connection destination. Specifically, the network search unit 16 searches for a channel in which the processor 2 is open based on a beacon message periodically transmitted after the processor 2 is opened, and indicates a channel in which the processor 2 is open. The information is notified to the channel setting unit 18.
  • the channel setting unit 18 transmits the channel used for transmitting and receiving radio signals based on the notified information. Set in section 14.
  • the transmission unit 12 modulates the idle channel search request notified from the idle channel search request transmission unit 15, and the idle channel search request to the processor 2 via the antenna 13 in the channel set by the channel setting unit 18. Send Thereafter, the endoscope scope 1 stands by until receiving a channel report transmitted from the processor 2.
  • the receiving unit 14 passes the channel report received via the antenna 13 to the channel report detecting unit 17.
  • the channel report detection unit 17 obtains a free channel search result included in the channel report, and passes the free channel search result to the channel setting unit 18.
  • the channel setting unit 18 sets the channel instructed by the empty channel search result in the transmission unit 12 and the reception unit 14. The free channel will be described later.
  • the transmission unit 12 and the reception unit 15 of the endoscope scope 1 use the set channel. Communication with the processor 2 is performed, and the imaging unit 11 transmits the image data captured and modulated to the processor 2.
  • FIG. 3 is a block diagram showing the configuration of the processor 2 in the present embodiment.
  • the processor 2 includes the antenna 21, the receiving unit 22, the display unit 23, the free channel search request detecting unit 24 (trigger receiving unit), the free channel searching unit 25, and the channel report sending unit 26. , A transmission unit 27, and a channel setting unit 28.
  • the antenna 21 transmits and receives radio waves.
  • the receiver 22 receives and demodulates a radio signal.
  • the display unit 23 performs signal processing on the image data transmitted from the endoscope scope 1 and outputs the image data to the monitor.
  • the free channel search request detection unit 24 acquires a free channel search request (trigger) transmitted from the endoscope scope 2.
  • the free channel search unit 25 searches for free channels, which are channels not used by other devices.
  • the channel report transmission unit 26 modulates a channel report including the search result of the free channel and transmits it to the scope.
  • the transmission unit 27 modulates and transmits a radio signal.
  • the channel setting unit 28 sets a channel used for transmitting and receiving a radio signal in the receiving unit 22 and the transmitting unit 27.
  • the idle channel search unit 25 searches for an idle channel, which is a channel not used by another device, via the antenna 21 and the reception unit 22 after the power supply of the processor is activated.
  • the idle channel search unit 25 detects a plurality of idle channels, it selects a channel with the best communication quality from the detected channels.
  • the free channel search unit 25 notifies the channel setting unit 28 of free channel information which is a search result of the free channel.
  • the channel setting unit 28 sets a channel used by the transmission unit 27 and the reception unit 22 of the processor to transmit and receive a radio signal based on the notified free channel information.
  • the processor 2 opens. After opening the station, the processor 2 periodically transmits a beacon including information on a channel used for communication, and stands by until receiving a free channel search request transmitted from the endoscope 1.
  • the free channel may be selected on the basis of the interference power measured for each channel, or the number of wireless communication devices and the number of packets communicating in each channel.
  • the vacant channel may be selected on the basis of the measured one.
  • the idle channel search request detection unit 24 receives the idle channel search request transmitted from the endoscope 1 via the antenna 21 and the reception unit, the idle channel search request detection unit 24 instructs the idle channel search unit 25 to search for an idle channel.
  • the free channel search unit 25 searches for a free channel which is a channel not used by another device.
  • the idle channel search unit 25 detects a plurality of idle channels, it selects a channel with the best communication quality from the detected channels. Subsequently, the idle channel search unit 25 passes a channel report including information on idle channels to the channel report transmission unit 26, and the channels used by the receiver 22 and the transmitter 27 are idle channels (or idle channels).
  • the channel setting unit 28 is instructed to change the channel so as to change the channel to the best communication quality.
  • the channel report transmission unit 26 transmits the channel report to the endoscope scope 1 via the transmission unit 27 and the antenna 21. At this time, the transmission unit 27 performs modulation processing and transmission processing.
  • the channel setting unit 28 determines that the communication quality is the best among the available channels (or among the available channels) based on the channel change instruction issued from the available channel searching unit 25. Channel) are set in the transmission unit 27 and the reception unit 22.
  • the transmitting unit 27 and the receiving unit 22 of the processor 2 Communication is performed, and the image data transmitted from the endoscope 1 is received.
  • the display unit 23 of the processor 2 performs signal processing on the received image data, and outputs the processed image data to the monitor.
  • FIG. 4 is a sequence diagram showing a process flow of the endoscope scope 1 and the processor 2 in the present embodiment.
  • the processor 2 performs free channel search (step S102) after activation (step S101), sets a channel to communicate with the endoscope 1 based on the search result, and opens the station ( Step S103). After that, the processor 2 stands by until it receives an idle channel search request transmitted from the endoscope scope 1.
  • the endoscope scope 1 performs network search (step S105) after activation (step S104), and based on a beacon message periodically transmitted from the processor 2, The processor 2 to be connected and the channel used for communication with the processor 2 are specified. Subsequently, the endoscope scope 1 sets a channel to be used in communication with the processor 2 as the connection destination (step S106), and sends an idle channel search request to the processor 2 as the connection destination (step S107). Do. Thereafter, the endoscope scope 1 stands by until receiving a channel report transmitted from the processor 2.
  • the processor 2 When the processor 2 receives the free channel search request, the processor 2 performs free channel search (step S108) again to specify a free channel. That is, the processor 2 carries out a review of channel selection. Subsequently, the processor 2 transmits a channel report including information indicating an idle channel to the endoscope 1 (step S109), and then a channel for communicating with the endoscope 1 is an idle channel (or an idle channel). Of the channels) (step S110). On the other hand, when the endoscope report 1 also receives the channel report, the channel for communicating with the processor 2 is made a vacant channel (or a channel with the best communication quality among the vacant channels) based on the received channel report. It changes (Step S110).
  • step S111 since the channel used between the endoscope scope 1 and the processor 2 is set, the endoscope scope 1 and the processor 2 start communication (step S111).
  • FIG. 5 is a flow chart showing the operation procedure of the endoscope scope 1 in the present embodiment.
  • Step S201 The endoscope scope 1 is activated. Then, it progresses to the process of step S202.
  • the network search unit 16 performs a network search, and, based on a beacon message periodically transmitted from the processor 2, identifies the processor 2 as the connection destination and a channel used for communication with the processor 2. Then, it progresses to the process of step S203.
  • Step S203 The channel setting unit 18 sets a channel to be used in the communication with the processor 2 as the connection destination specified in step S202. Then, it progresses to the process of step S204.
  • Step S204 The free channel search request sending unit 15 sends a free channel search request to the processor 2 of the connection destination determined in step S202, using the channel set in the process of step S203. Then, it progresses to the process of step S205.
  • Step S205 If the channel report detection unit 17 receives a channel report from the processor 2, the process proceeds to step S206. Otherwise, the channel report detection unit 17 executes the process of step S205 again. That is, it waits until the channel report detection unit 17 receives a channel report.
  • Step S206 The channel setting unit 18 sets, in the transmission unit 12 and the reception unit 14, an idle channel (or a channel with the best communication quality among the idle channels) included in the channel report. Thereafter, the process proceeds to step S207.
  • Step S207 The endoscope scope 1 starts communication with the processor 2.
  • FIG. 6 is a flowchart showing an operation procedure of the processor 2 in the present embodiment.
  • Step S301 The processor 2 starts up. Thereafter, the process proceeds to step S302.
  • Step S302 The free channel search unit 25 searches for free channels, and identifies free channels (or channels with the best communication quality among the free channels). Thereafter, the process proceeds to step S303.
  • Step S303 The channel setting unit 28 sets the idle channel (or the channel with the best communication quality among the idle channels) identified in step S302 in the transmission unit 27 and the reception unit 22. Thus, the processor 2 opens. Then, it progresses to the process of step S304.
  • Step S304 When the free channel search request detection unit 24 receives a free channel search request from the endoscope scope 1, the process proceeds to step S305, and otherwise executes the process of step S304 again. That is, the idle channel search request detection unit 24 waits until the idle channel search request is received.
  • Step S305 The free channel search unit 25 searches for free channels and specifies free channels. When a plurality of idle channels are detected, the idle channel search unit 25 selects the channel with the best communication state. Also, the free channel search unit 25 passes a channel report including information on free channels to the channel report transmission unit 26. Thereafter, the process proceeds to step S306. (Step S306) The channel report transmission unit 26 transmits a channel report to the endoscope 1. Thereafter, the process proceeds to the process of step S307.
  • Step S307 The channel setting unit 18 sets, in the transmitting unit 12 and the receiving unit 14, the idle channel (or the channel with the best communication quality among the idle channels) detected by the idle channel search unit 25 in step S305. Thereafter, the process proceeds to step S308. (Step S308) The processor 2 initiates communication with the endoscope scope 1.
  • the processor 2 of the present embodiment sets a channel to be used when performing communication with the endoscope scope 1 after activation. Also, the endoscope scope 1 transmits a free channel search request to the processor 2 after being activated. In addition, when the processor 2 receives an idle channel search request, the processor 2 searches for an idle channel, and based on the search result, sets a channel to be used when communicating with the endoscope 1 again, and further, the endoscope Send a channel report including the changed channel information to scope 1. In addition, the endoscope scope 1 sets a channel to be used when communicating with the processor 2 based on the channel report.
  • FIG. 7 is a block diagram showing the configuration of the endoscope scope 1 in the present embodiment.
  • the difference with the configuration of the endoscope scope 1 in the first embodiment is that the endoscope scope 1 in the present embodiment includes an event detection unit 19.
  • the endoscope scope 1 includes an imaging unit 11, a transmission unit 12, an antenna 13, a reception unit 14, an available channel search request transmission unit 15, a network search unit 16, and a channel report detection unit.
  • a channel setting unit 18 and an event detection unit 19 are provided.
  • the imaging unit 11, the transmission unit 12, the antenna 13, the reception unit 14, the free channel search request transmission unit 15, the network search unit 16, the channel report detection unit 17, and the channel setting unit The reference numeral 18 is the same as each part in the first embodiment.
  • the event detection unit 19 detects an event for medical examination start that has occurred in the endoscope 1 and notifies the free channel search request transmission unit 15 of information indicating that an event for medical examination start has been detected.
  • the free channel search request transmission unit 15 is notified of the information indicating that the event for starting the medical examination is detected from the event detection unit 19, the free channel search request is transmitted to the processor via the transmission unit 12 and the antenna 13. Send to 2
  • the event for starting the medical examination is a process executed before starting the medical examination. For example, as detection of an event for the start of a medical examination, a switch depression of the white balance adjustment of an image which is always performed before medical examination may be detected, or a dedicated switch is provided for the operator to reset the channel. The depression may be detected, a result of detection of the operator holding the scope by a switch or a sensor may be detected, or detection of an input of patient information for starting a medical examination may be performed. Moreover, GPS etc. may be provided to acquire position information, and entrance to the examination room may be detected, or the distance between the processor 2 and the endoscope scope 1 may be detected using a laser or a communication device having a short communication distance. It may be detected that it has become a fixed value or less, or it may be detected that a fixed time has elapsed since the power of the endoscope scope 1 is turned on.
  • FIG. 8 is a sequence diagram showing a process flow of the endoscope scope 1 and the processor 2 in the present embodiment.
  • steps S401 to S411 in the present embodiment is the same processing as the processing of steps S101 to S111 in the first embodiment. In the following description, description of processing similar to that of the first embodiment is omitted.
  • step S412 the process after the endoscope scope 1 and the processor 2 start communication, that is, the process after step S412 is added, and therefore, the process from step S412 will be described in order.
  • the event detection unit 19 detects an event for starting a medical examination (step S412) after starting communication with the processor 2, the endoscope scope 1 sends a free channel search request to the processor 2 (step S413). ).
  • the processor 2 When the processor 2 receives the free channel search request, the processor 2 again performs free channel search (step S414) to specify a free channel.
  • the idle channel search unit 25 selects the channel with the best communication state. That is, the processor 2 carries out a review of channel selection.
  • the processor 2 transmits a channel report including information indicating an idle channel to the endoscope 1 (step S 415), and then a channel for communicating with the endoscope 1 is an idle channel (or an idle channel). Of the channels) (step S416).
  • the channel for communicating with the processor 2 is made a vacant channel (or a channel with the best communication quality among the vacant channels) based on the received channel report. It changes (step S416).
  • FIG. 9 is a flow chart showing the operation procedure of the endoscope scope 1 in the present embodiment.
  • steps S501 to S507 in the present embodiment is the same processing as the processing of steps S201 to S207 in the first embodiment. In the following description, description of processing similar to that of the first embodiment is omitted.
  • step S508 the process after the endoscope scope 1 starts communication with the processor 2, that is, the process after step S508 is added, and therefore, the process from step S508 will be described in order.
  • Step S508 If the event detection unit 19 detects an event for starting a medical examination while the endoscope scope 1 and the processor 2 are in communication, the process proceeds to step S509. Otherwise, the process of step S508 is performed. Run again. That is, the process waits until the event detection unit 19 detects an event for starting a medical examination.
  • Step S509 The free channel search request sending unit 15 sends a free channel search request to the processor 2. Thereafter, the process proceeds to step S510.
  • Step S510 When the channel report detection unit 17 receives a channel report from the processor 2, the process proceeds to the process of step S511, and otherwise executes the process of step S510 again. That is, it waits until the channel report detection unit 17 receives a channel report.
  • Step S511 The channel setting unit 18 sets, in the transmission unit 12 and the reception unit 14, an idle channel (or a channel with the best communication quality among the idle channels) included in the channel report.
  • FIG. 10 is a flowchart showing the operation procedure of the processor 2 in the present embodiment.
  • steps S601 to S608 in the present embodiment are the same as the processes of steps S301 to S308 in the first embodiment. In the following description, description of processing similar to that of the first embodiment is omitted.
  • Step S609 When the free channel search request detection unit 24 receives a free channel search request from the endoscope scope 1, the process proceeds to step S610, and otherwise executes the process of step S609 again. That is, the idle channel search request detection unit 24 waits until the idle channel search request is received.
  • Step S610 The free channel search unit 25 searches for free channels and specifies free channels. When a plurality of idle channels are detected, the idle channel search unit 25 selects the channel with the best communication state. Also, the free channel search unit 25 passes a channel report including information on free channels to the channel report transmission unit 26. Then, it progresses to the process of step S611. (Step S611) The channel report transmission unit 26 transmits a channel report to the endoscope 1. Thereafter, the process proceeds to step S612.
  • Step S612 The channel setting unit 18 sets, in the transmitting unit 12 and the receiving unit 14, the idle channel (or the channel with the best communication quality among the idle channels) detected by the idle channel search unit 25 in step S610.
  • the endoscope scope 1 of the present embodiment transmits the free channel search request to the processor 2 again before actually starting the medical examination.
  • the processor 2 receives an idle channel search request
  • the processor 2 searches for an idle channel, and based on the search result, sets a channel to be used when communicating with the endoscope 1 again, and further, the endoscope Send a channel report including the changed channel information to scope 1.
  • the endoscope scope 1 sets a channel to be used when communicating with the processor 2 based on the channel report.
  • the endoscope 1 when the endoscope 1 is activated in the storage area and then moved to the medical examination room with the endoscope 1 held, the free channel is re-searched at the time and place where the medical examination is actually started. Since the optimum channel can be assigned, the endoscope scope 1 and the processor 2 can communicate on the more optimum channel.
  • the present invention is not limited to this and a plurality of endoscopes may be used. It may be a wireless endoscope system provided with the scope 1.
  • the endoscope scope 1 and the processor 2 in the first embodiment and the second embodiment are different from the wireless communication means for transferring image data (for example, an RFID tag reader and the like) Interference can be avoided without providing the RFID and the like.
  • image data for example, an RFID tag reader and the like
  • crosstalk can be avoided without increasing the cost of the device. That is, as an additional effect, it is possible to avoid the cost increase of the device.
  • the wireless terminal of the present invention can change the channel used for communication between wireless terminals after setting the channel used for communication between wireless terminals, better data communication can be performed using a plurality of wireless terminals. It can be carried out.

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PCT/JP2010/066786 2009-10-23 2010-09-28 携帯無線端末、無線端末、無線通信システムおよび無線通信方法 Ceased WO2011048914A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP10824763.6A EP2478823B1 (en) 2009-10-23 2010-09-28 Portable wireless terminal, wireless terminal, wireless communication system and wireless communication method
CN201080046671.1A CN102686144B (zh) 2009-10-23 2010-09-28 便携无线终端、无线终端、无线通信系统和无线通信方法
US13/448,972 US9002285B2 (en) 2009-10-23 2012-04-17 Portable wireless terminal, wireless terminal, wireless communication system, and wireless communication method

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JP2009-244353 2009-10-23
JP2009244353A JP5642373B2 (ja) 2009-10-23 2009-10-23 携帯無線端末、無線通信システムおよび携帯無線端末の無線通信方法

Related Child Applications (1)

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US13/448,972 Continuation US9002285B2 (en) 2009-10-23 2012-04-17 Portable wireless terminal, wireless terminal, wireless communication system, and wireless communication method

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WO2011048914A1 true WO2011048914A1 (ja) 2011-04-28

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EP2478823A1 (en) 2012-07-25
EP2478823A4 (en) 2012-10-24
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US9002285B2 (en) 2015-04-07

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