WO2002052818A1 - Poste radio portatif - Google Patents

Poste radio portatif Download PDF

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Publication number
WO2002052818A1
WO2002052818A1 PCT/JP2001/011373 JP0111373W WO02052818A1 WO 2002052818 A1 WO2002052818 A1 WO 2002052818A1 JP 0111373 W JP0111373 W JP 0111373W WO 02052818 A1 WO02052818 A1 WO 02052818A1
Authority
WO
WIPO (PCT)
Prior art keywords
power
portable wireless
wireless terminal
power supply
radio wave
Prior art date
Application number
PCT/JP2001/011373
Other languages
English (en)
Japanese (ja)
Inventor
Kuniaki Furukawa
Original Assignee
Kobayashi, Satoko
Nakayama, Yukio
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 Kobayashi, Satoko, Nakayama, Yukio filed Critical Kobayashi, Satoko
Publication of WO2002052818A1 publication Critical patent/WO2002052818A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/738—Interface circuits for coupling substations to external telephone lines
    • H04M1/74—Interface circuits for coupling substations to external telephone lines with means for reducing interference; with means for reducing effects due to line faults

Definitions

  • the present invention relates to a portable wireless terminal capable of transmitting and receiving data by wireless communication, and in particular, to automatically shut off power or the like when a predetermined power shut-off factor exists.
  • These portable wireless terminals are always carried and used outside, and are generally carried when using transportation such as trains, airplanes, and ships.
  • the portable wireless terminal may not be turned off due to the intentional or carelessness of the passenger, and it is difficult to completely prevent a serious accident.
  • the present invention has been proposed in view of the above circumstances, and has as its object to provide a portable wireless terminal capable of automatically shutting off power when a predetermined power shutoff factor exists. . Disclosure of the invention
  • a portable wireless terminal is a portable wireless terminal that transmits and receives data overnight by wireless communication.
  • the portable wireless terminal includes: a power supply control unit for controlling power supply; and a power supply control unit for detecting a factor to be shut down. Detecting means; power-off means for interrupting power supply by the power-supply control means when the detecting means detects a power-off factor; and power-off means when power is interrupted by the power-off means. And a return unit for instructing restart of power supply by the power supply control unit.
  • the power cutoff means when the detecting means detects the presence of a predetermined power cutoff factor, the power cutoff means is activated and the power supply by the power supply control means is automatically cut off.
  • a radio wave transmission control unit for controlling radio wave transmission for controlling radio wave transmission
  • a detection unit for detecting a factor that should interrupt radio wave transmission include: In order to cut off the radio wave transmission by the radio wave transmission control means when detecting the radio wave transmission cutoff factor ⁇ ′, and return means for instructing restart of radio wave transmission by the radio wave transmission control means when radio wave transmission is cut off by the radio wave transmission cut-off means. Is what you do.
  • the detection means includes a detection sensor for X-rays, electromagnetic waves, or the like
  • the power cutoff means or the radio wave transmission cutoff means has a detection sensor for X-rays or the like having a predetermined threshold or more. It can be configured to operate when X-rays or the like are detected.
  • the portable wireless terminal may further include a display unit for displaying that power is cut off by the power cutoff unit or that the radio wave transmission circuit is cut off by the radio wave transmission cutoff unit. It is. BRIEF DESCRIPTION OF THE FIGURES
  • FIG. 1 is a schematic block diagram showing a first embodiment of a portable wireless terminal according to the present invention.
  • FIG. 2 is a schematic block diagram showing a second embodiment of a portable wireless terminal according to the present invention.
  • FIG. 3 is a flowchart showing a procedure for shutting down the power in the portable wireless terminal according to the first embodiment of the present invention.
  • FIG. 4 is a flowchart showing the procedure for shutting down the power supply in the portable wireless terminal according to the second embodiment of the present invention.
  • 5 is a flow chart showing a procedure for shutting off.
  • FIG. 1 is a schematic block diagram showing one embodiment for shutting off a power supply of a portable wireless terminal according to the present invention.
  • the portable wireless terminal includes, for example, a PDA, and as shown in FIG. 1, a control circuit 1 for controlling the operation of the portable wireless terminal.
  • a transmitting / receiving unit 20 for transmitting / receiving data via the antenna 80
  • a display unit 30 for displaying data
  • an ONZOFF of the power supplied from the power supply 50 The power switch 40, a sensor 60 for detecting a power-off factor, and a return switch 70 for instructing restart of power supply when power is cut off.
  • the operation of the above-described return switch 70 is not shown, but it is preferable not to manually operate the push switch of the portable wireless terminal itself, but to use something other than the portable wireless terminal itself.
  • the device that operates the return switch 70 is installed separately in the arrival counter of an airplane or the like, or when charging a portable wireless terminal, a terminal different from the charging terminal of the charger is connected to the portable wireless terminal.
  • a signal for operating the switch via the terminal is provided to the terminal to operate the circuit of the return switch 70 of the portable wireless terminal.
  • the control circuit 10 is a so-called one-chip microcomputer in which circuits having functions such as CPU 11, ROM 12, and RAM 13 are formed on a single substrate.
  • the control circuit 10 has a power supply circuit 14 for controlling power supply.
  • the power supply circuit 14 has a power supply for shutting off the power supply based on a detection output from the sensor 60. Includes blocker 15.
  • the display unit 30 is composed of, for example, a liquid crystal display device, and can display data to be transmitted and received, and can also indicate that the power is cut off by the power cutoff unit 15.
  • the power cutoff by the power cutoff unit 15 may be displayed by lighting a light emitting device such as a light emitting diode with low power consumption.
  • the senor 60 uses an X-ray detector widely used in airports.
  • a Schottky barrier diode is an example of an X-ray detector. Can be used.
  • a Schottky barrier diode with a reverse bias is irradiated with X-rays, electron-hole pairs are generated by the X-rays in the depletion layer at the interface (electrons in the valence band are excited by receiving the energy of the X-rays and conducted. The current flows because electrons flow to the semiconductor side and holes flow to the metal side due to the internal electric field created by the reverse bias.
  • the sensor 60 includes a detection sensor 60 including the above-described X-ray or gamma ray detection element.
  • the power supply to the power cutoff unit 15 is performed. Outputs the cutoff signal.
  • This threshold is set according to the X-ray output of baggage inspection equipment installed at airports, etc., but a volume adjuster for adjusting the threshold is provided in the portable wireless terminal so that the threshold can be changed appropriately. Is also good.
  • the senor 60 is not limited to the X-ray detection sensor 60, but may be a sensor capable of detecting other electromagnetic waves, for example, a low-frequency (VLF) electromagnetic wave used in a metal detector widely used in airports and the like. It goes without saying that these may be used, and that these may be used in combination.
  • VLF low-frequency
  • a magnetic impedance element can be used for detection.
  • the power supply of the portable wireless terminal can be cut off corresponding to the device that generates the electromagnetic wave.
  • the PDA can be provided with an input function such as a numeric keypad or a stylus for inputting data, a schedule management function, a dictionary function, a web display function, and the like.
  • FIG. 2 is a schematic block diagram showing one embodiment for blocking transmission of radio waves of the portable wireless terminal according to the second embodiment of the present invention.
  • the portable wireless terminal according to the embodiment of the present invention has substantially the same configuration as that described above, but differs in that the sensor 61 directly controls the transmission of radio waves from the transmitting / receiving unit 20.
  • control circuit 10 is a so-called one-chip microcomputer in which circuits having functions such as the CPU 11, the ROM 12, and the RAM 13 are formed on a single substrate in the same manner as described above. Further, the control circuit 10 has a radio wave transmitting section control circuit 16 for controlling the radio wave transmitting supply, and the radio wave transmitting section control circuit 16 cuts off the radio wave transmission based on the detection output from the sensor 61. And a radio wave transmission cut-off section 17 for communication.
  • the stop of the radio wave transmission may be any as long as it is stopped by the radio wave transmission from the antenna 80, and a known appropriate means may be used. That is, it goes without saying that the power supply of the transmission / reception unit 20 may be cut off, the transmission circuit may be cut off, or the circuit of the antenna 80 may be stopped.
  • FIG. 3 is a flowchart showing a procedure for shutting off power in the portable wireless terminal according to the first embodiment.
  • the portable wireless terminal when the power switch 40 is operated and the power is turned on (Sl), the portable wireless terminal starts driving, and data transmission / reception is performed. It becomes possible (S2).
  • the power switch 40 is operated to turn off the power. Then, the driving of the portable wireless terminal ends, and transmission and reception are disabled (S3, S8).
  • the sensor 60 detects a cutoff factor (for example, an X-ray having a threshold value or more) from the power-on state
  • the sensor 60 outputs a power cutoff signal to the power cutoff unit 15 to cut off the power supply by the power supply circuit 14.
  • the display unit 30 indicates that the power is turned off (S6).
  • the power-off display on the display unit 30 may be omitted.
  • the portable wireless terminal of the present invention is applicable to any device that transmits and receives data by wireless communication.
  • the present invention can be applied to, for example, a transceiver, a single-function mobile phone, and a mobile phone having a mail transmission / reception function, a WEB search function, and the like.
  • FIG. 4 is a flowchart showing a procedure for shutting off the power supply in the portable wireless terminal according to the second embodiment.
  • the radio-wave transmitting unit control circuit 16 When the sensor 61 detects a blocking factor (for example, an X-ray having a threshold value or more) from the power-on state, the radio-wave transmitting unit control circuit 16 outputs a radio-wave transmitting cut-off signal to the radio-wave transmitting blocking unit 17. In addition to blocking the transmission of radio waves from the antenna 80 via the transmitting / receiving unit 20 (S15), the display unit 30 Is displayed to indicate that the power has been shut off (S16).
  • a blocking factor for example, an X-ray having a threshold value or more
  • the power cutoff means when the detecting means detects the presence of a predetermined power cutoff factor, the power cutoff means operates, and the power supply by the power supply control means can be automatically cut off.
  • the detection means is constituted by an X-ray, electromagnetic wave, etc. detection sensor, so that the power cut-off means can be activated when X-rays, electromagnetic waves, etc., having a predetermined threshold or more are detected. it can.
  • the power of the portable wireless terminal can be automatically turned off, and malfunctions of instruments during take-off and landing of airplanes, etc. Can be prevented beforehand.
  • the display unit can display that the power is shut off in the portable wireless terminal.
  • the portable wireless terminal according to the present invention is useful as a PDA that is carried by an individual and used as a mobile phone that is additionally provided with an e-mail transmission / reception function and a WEB search function.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Function (AREA)

Abstract

L'invention porte sur un moyen de détection comportant un capteur sensible aux rayons X ou au rayonnement électromagnétique détectant un facteur prédéterminé de coupure d'alimentation (des rayons X dépassant un seuil prédéterminé ou plus) et sur un moyen de coupure de courant (15) agissant pour interrompre automatiquement l'alimentation fournie par un circuit d'alimentation (14). Le moyen de coupure et le moyen d'alimentation sont chacun constitués d'un micro-ordinateur monopuce ou analogue. L'invention porte également sur un poste radio portatif dont l'alimentation se coupe automatiquement en présence d'un facteur prédéterminé de coupure de l'alimentation.
PCT/JP2001/011373 2000-12-22 2001-12-25 Poste radio portatif WO2002052818A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000390563 2000-12-22
JP2000-390563 2000-12-22

Publications (1)

Publication Number Publication Date
WO2002052818A1 true WO2002052818A1 (fr) 2002-07-04

Family

ID=18856898

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2001/011373 WO2002052818A1 (fr) 2000-12-22 2001-12-25 Poste radio portatif

Country Status (1)

Country Link
WO (1) WO2002052818A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3070785A1 (fr) * 2017-09-06 2019-03-08 Safran Electronics & Defense Systeme de surveillance d'un aeronef

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0951576A (ja) * 1995-08-07 1997-02-18 Fujitsu Ltd 移動通信システムの移動局使用制限方法、基地局装置および移動局装置
US6052577A (en) * 1996-06-07 2000-04-18 Nec Corporation Portable telephone use limiting system and portable telephone

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0951576A (ja) * 1995-08-07 1997-02-18 Fujitsu Ltd 移動通信システムの移動局使用制限方法、基地局装置および移動局装置
US6052577A (en) * 1996-06-07 2000-04-18 Nec Corporation Portable telephone use limiting system and portable telephone

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3070785A1 (fr) * 2017-09-06 2019-03-08 Safran Electronics & Defense Systeme de surveillance d'un aeronef
WO2019048203A1 (fr) * 2017-09-06 2019-03-14 Safran Electronics & Defense Systeme de surveillance d'un aeronef
CN111052190A (zh) * 2017-09-06 2020-04-21 赛峰电子与防务公司 飞行器监控系统
US11354950B2 (en) 2017-09-06 2022-06-07 Safran Electronics & Defense Aircraft monitoring system

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