WO2019044300A1 - Appareil électronique, programme, dispositif de commande et procédé de commande - Google Patents

Appareil électronique, programme, dispositif de commande et procédé de commande Download PDF

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Publication number
WO2019044300A1
WO2019044300A1 PCT/JP2018/028116 JP2018028116W WO2019044300A1 WO 2019044300 A1 WO2019044300 A1 WO 2019044300A1 JP 2018028116 W JP2018028116 W JP 2018028116W WO 2019044300 A1 WO2019044300 A1 WO 2019044300A1
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WIPO (PCT)
Prior art keywords
antenna
signal
change
antennas
change amount
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PCT/JP2018/028116
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English (en)
Japanese (ja)
Inventor
史敬 中島
幸一 室田
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シャープ株式会社
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Publication date
Application filed by シャープ株式会社 filed Critical シャープ株式会社
Priority to JP2019539078A priority Critical patent/JP6975242B2/ja
Publication of WO2019044300A1 publication Critical patent/WO2019044300A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/10—Monitoring; Testing of transmitters
    • H04B17/15—Performance testing
    • H04B17/19—Self-testing arrangements

Definitions

  • the present invention relates to an electronic device, a program, a control device, and a control method.
  • Patent Document 1 discloses a power detector that detects the power of a signal transmitted from an antenna, a variable matching device that matches the impedance of the antenna, and a comparison result of a reference value and a detection value of the power detector.
  • An adjustment unit that adjusts the setting value of the variable matching unit, a detection unit that detects a change in transmission power based on a time change of the detection value, and a correction unit that corrects the reference value based on the detection result of the detection unit; And the like are disclosed.
  • the antenna device and the like disclosed in Patent Document 1 are obtained by detecting the power of the signal transmitted from the antenna or extracting the reflected wave that is not transmitted by the antenna and reflected from the antenna to the wireless unit. The detected value is compared with a reference value. Also, the power detector detects the power of the signal transmitted from the antenna by detecting the power of the signal received from the antenna by the probe.
  • the antenna is external even when the probe that receives the power of the signal is affected by the external environmental change.
  • the adjustment unit erroneously adjusts the setting value of the variable matching device, judging that it has been affected by the environmental change.
  • the probe when the transmission power of the antenna is reduced due to the influence of the external environmental change, for example, if the directivity also changes under the influence of the environmental change, the probe also receives the transmission power of the probe.
  • the amount of decrease and the amount of increase in received power may be offset. In this case, depending on the degree of cancellation, the adjustment unit does not adjust the set value even though the antenna is affected by external environmental changes.
  • the increase or decrease of the detected value is due to, for example, the increase or decrease of the power of the signal radiated from the antenna to the external space, or exists near the antenna It can not be judged whether it is due to the influence of the medium (effect of external environmental change). Therefore, there is a possibility that erroneous adjustment or non-adjustment of the set value may occur.
  • One aspect of the present invention is made in view of the above-mentioned problems, and its object is to detect an environmental change outside an electronic device with high accuracy in adjusting antenna performance.
  • an electronic device concerning one mode of the present invention is an electronic device provided with at least two antennas and at least one control device, and among the at least two antennas, One antenna transmits a first signal, and a second antenna receives the first signal to generate a second signal, and the controller changes the power of the first signal.
  • Calculation processing for calculating a first change amount representing the power change and a second change amount representing the power change of the second signal, and the first change amount and the first threshold value calculated by the calculation processing And a determination process of determining the presence or absence of an environmental change outside the electronic device by comparing the second change amount calculated by the calculation process with a second threshold value.
  • a control device is a control device that controls an electronic device provided with at least two antennas, and a first antenna of the at least two antennas transmits a first signal. And a second antenna receives the first signal to generate a second signal, and a first variation representing a change in power of the first signal, and a change in power of the second signal While comparing the first change amount calculated by the calculation unit with the first threshold value, and calculating the second change amount representing the second change amount calculated by the calculation unit And a determination unit that determines the presence or absence of an environmental change outside the electronic device by comparing the amount with a second threshold.
  • a control method is a control method for controlling an electronic device including at least two antennas, wherein a first antenna of the at least two antennas transmits a first signal. And a second antenna receives the first signal to generate a second signal, and a first variation representing a change in power of the first signal, and a change in power of the second signal While comparing the first change amount calculated in the calculation step with the first threshold value, and calculating the second change amount representing the second change amount. And a determination step of determining the presence or absence of an environmental change outside the electronic device by comparing the amount of change with the second threshold value.
  • environmental changes outside the electronic device can be detected with high accuracy.
  • Embodiment 1 For convenience of explanation, the same reference numerals will be appended to components having the same functions as the components described for the specific items, and the description thereof will be omitted. The same applies to each of the following embodiments.
  • each device such as a wireless device, a control device, and a storage device included in the electronic device according to one aspect of the present invention may be singular or plural. It is also good.
  • the wireless communication terminal 100 (electronic device), a mobile phone, a smartphone, a tablet terminal or the like can be exemplified.
  • various electronic devices such as a router / access point of WLAN (Wireless Local Area Network) are also included in the scope of the present invention.
  • the wireless communication terminal 100 includes a first antenna 10, a second antenna 11, a bidirectional coupler 12, a wireless device 13, a control device 14, a storage device 15, and a matching device 16.
  • the first antenna 10 is an antenna having a transmission function, and transmits a signal generated by a transmission circuit 13a described later to the second antenna 11 as a transmission signal (first signal).
  • the second antenna 11 is an antenna having a receiving function, and is disposed in the vicinity of the first antenna 10.
  • the second antenna 11 receives the transmission signal transmitted from the first antenna 10, generates a reception signal (second signal), and transmits the reception signal to a detection circuit 13c described later.
  • the bidirectional coupler 12 is connected to the first antenna 10 and a transmission circuit 13a described later, and extracts an incident wave incident on the bidirectional coupler 12 out of the signals transmitted from the transmission circuit 13a. In addition, the bidirectional coupler 12 also takes out the reflected wave reflected by the bidirectional coupler 12 without being transmitted from the first antenna among the above signals.
  • the extracted incident wave is output by the bidirectional coupler 12 to a detection circuit 13b-1 described later.
  • the extracted reflected wave is output by the bidirectional coupler 12 to a detection circuit 13b-2 described later.
  • the wireless device 13 has a transmission circuit 13a, a detection circuit 13b-1, a detection circuit 13b-2, and a detection circuit 13c.
  • the transmission circuit 13 a generates a signal to be transmitted from the first antenna 10.
  • the detection circuit 13b-1 detects the power P1 of the incident wave output from the bidirectional coupler 12, and transmits the detection result to the calculation unit 14a described later.
  • the detection circuit 13b-2 detects the power P2 of the reflected wave output from the bidirectional coupler 12 and transmits the detection result to the calculation unit 14a.
  • the detection circuit 13c detects the power P3 of the reception signal transmitted from the second antenna 11, and transmits the detection result to the calculation unit 14a.
  • the control device 14 controls the respective devices and parts constituting the wireless communication terminal 100 in an integrated manner.
  • the control device 14 includes a calculation unit 14a, a determination unit 14b, and a specification unit 14c.
  • the calculation unit 14a is a reception side change amount ⁇ (first change amount) representing a power change of the transmission signal transmitted by the first antenna 10 and a reception change representing a power change of the reception signal received by the second antenna 11 A calculation process is performed to calculate the side change amount ⁇ (second change amount).
  • the determination unit 14b compares the transmission side variation ⁇ calculated by the calculation process of the calculation unit 14a with the first threshold ⁇ s, and the reception side variation ⁇ ⁇ calculated by the above calculation process and the second threshold ⁇ s. Compare with. And based on these comparison results, the determination processing which determines the presence or absence of the external environment change of the radio
  • the first and second threshold values ss and ss are unique values determined in accordance with the performance and characteristics of the first and second antennas 10 and 11, respectively, and may be stored in the storage device 15 in advance. And may be stored in the storage device 15 by user operation.
  • “external environmental change” refers to an external change of the wireless communication terminal 100 that changes each power value of the powers P1, P2, and P3 detected by the detection circuits 13b-1, 13b-2, and 13c.
  • a medium (dielectric) for changing antenna characteristics such as human, animal, wood, metal, etc., is close to the wireless communication terminal 100 or the above-mentioned medium in the vicinity of the wireless communication terminal 100 is the wireless communication terminal The case of leaving 100 may be illustrated.
  • the identifying unit 14 c executes a identifying process of identifying the adjustment target antenna based on the comparison result of the determining unit 14 b. Specifically, the identification unit 14c identifies the adjustment target antenna by comparing the comparison result with a comparison table (see FIG. 3) described later.
  • the “adjustment target antenna” refers to an antenna that is affected by an environmental change outside the wireless communication terminal 100 among the first antenna 10 and the second antenna 11.
  • the storage unit 15 stores first and second threshold values ss ⁇ ⁇ s, a comparison table (see FIG. 3) to be described later, and various data.
  • the matching device 16 determines the first antenna 10. Perform matching processing to match the impedance of.
  • each of the detection circuits 13b-1, 13b-2, 13c of the wireless device 13 receives the signal transmitted from the transmission circuit 13a.
  • the power values of the powers P1, P2, and P3 are detected synchronously, and the process proceeds to S102 (detection step).
  • the calculation unit 14a of the control device 14 receives the detection results of the detection circuits 13b-1, 13b-2, 13c, and acquires the detection values of the powers P1, P2, P3. Next, the calculation unit 14a calculates the transmission side change amount ⁇ and the reception side change amount ⁇ using the acquired detection values, and proceeds to S103.
  • the transmission side change amount ⁇ is represented by a ratio (P2 / P1) of the power P2 of the reflected wave to the power P1 of the incident wave.
  • the receiving-side change amount ⁇ is expressed by the ratio of the power P3 of the received signal to the difference between the power P1 of the incident wave and the power P2 of the reflected wave ((P1 ⁇ P2) / P3).
  • the determination unit 14b of the control device 14 compares the transmission side change amount ⁇ received from the calculation unit 14a with the first threshold value ⁇ s called from the storage device 15. Similarly, the reception side variation amount ⁇ ⁇ received from the calculation unit 14a is compared with the second threshold value ⁇ s called from the storage device 15, and the process proceeds to S104.
  • the determination unit 14b determines the presence or absence of environmental change outside the wireless communication terminal 100 based on the comparison result. Specifically, the determination unit 14b calls the comparison table illustrated in FIG. 3 from the storage device 15, and specifies the state of the first and second antennas 10 and 11 corresponding to the comparison result, thereby changing the environment. Determine the presence or absence.
  • the transmission side variation amount ⁇ is larger than the first threshold value ss and the reception side variation amount ⁇ is larger than the second threshold value ss. “Is changed (the environment in the vicinity of the first antenna 10 is changed)”.
  • the second antenna 11 is considered as "may be changed (the environment in the vicinity of the second antenna 11 may be changed)”.
  • the determination unit 14b determines that the environment outside the wireless communication terminal 100 has changed. This determination result is the same as in the case where the transmission side variation amount ⁇ is larger than the first threshold value ss and the reception side variation amount ⁇ is smaller than the second threshold value ss.
  • the transmission side variation amount ⁇ is larger than the first threshold value ss and the reception side variation amount ⁇ is the same as the second threshold value ss, “variation is made” for the first antenna 10 There is.
  • the second antenna 11 is considered to be “may not change (the environment near the second antenna 11 may not change)".
  • the determination unit 14b determines that the environment outside the wireless communication terminal 100 has not changed.
  • the determination unit 14b determines that the environment outside the wireless communication terminal 100 has changed.
  • the determination result is the same as in the case where the transmission side variation amount ⁇ is the same as the first threshold value ⁇ s and the reception side variation amount ⁇ is smaller than the second threshold value ss.
  • the comparison table “changes” for the first antenna 10 when the transmission side change amount ⁇ is smaller than the first threshold value ss and the reception side change amount ⁇ is larger than the second threshold value ss.
  • the second antenna 11 is "may be changed”.
  • the determination unit 14b determines that the environment outside the wireless communication terminal 100 has changed. This determination result is the same as in the case where the transmission side change amount ⁇ is smaller than the first threshold value ss and the reception side change amount ⁇ is smaller than the second threshold value ss.
  • the comparison result of the determination unit 14b is transmitted to the identification unit 14c.
  • the identifying unit 14c that has received the comparison result identifies the antenna to be adjusted by calling up the comparison table from the storage device 15 in S105 (specifying step) and comparing it with the comparison result, and proceeds to S106.
  • the antenna that has become “changed” is specified as the adjustment target antenna. For example, when the transmission side change amount ⁇ ⁇ ⁇ is larger than the first threshold value ⁇ s and the reception side change amount ⁇ is larger than the second threshold value ss, the first antenna 10 is specified as the antenna to be adjusted.
  • the wireless communication terminal 100 may include a plurality of first antennas 10 and a plurality of second antennas 11. In other words, the wireless communication terminal may be provided with at least two antennas.
  • the wireless device 13 is provided with the same number of transmission circuits 13a, detection circuits 13b-1, and detection circuits 13b-2 as the number of first antennas 10.
  • the transmission circuit 13a, the detection circuit 13b-1, and the detection circuit 13b-2 are connected to each of the plurality of first antennas 10.
  • the wireless device 13 is provided with the same number of detection circuits 13 c as the number of second antennas 11, and the detection circuits 13 c are connected to each of the plurality of second antennas 11.
  • the wireless communication terminal 100 may include the same number of matching devices 16 as the number of first antennas 10 as shown in FIG. 4.
  • the matching device 16 is connected to each of the plurality of first antennas 10.
  • the wireless communication terminal 200 is different from the wireless communication terminal 100 according to the first embodiment in that the wireless communication terminal 200 includes three first and second antennas 10 and 11.
  • the number of first and second antennas 10 and 11 shown in FIG. 5 is merely an example, and the wireless communication terminal 200 may be provided with a greater number of first and second antennas 10 and 11, for example. Good.
  • the wireless device 13 has three detection circuits 13 c corresponding to the number of second antennas 11.
  • the wireless communication terminal 200 is provided with three matching devices 16 corresponding to the number of first antennas 10, and the matching devices 16 are connected to each of the three first antennas 10 as well. , Different from the wireless communication terminal 100.
  • the wireless communication terminal 200 applies each of the three first antennas 10 to the transmitting circuit 13a, the detecting circuit 13b-1 (first detecting circuit), and the detecting circuit 13b-2 (first detecting circuit). It differs from the wireless communication terminal 100 also in that it includes the switching device 17 that connects in the state capable of switching between the on state and the off state.
  • the switching device 17 switches the first antenna 10 identified as the adjustment target antenna from the on state to the off state by receiving the result of the identification process from the control device 14 (specifically, the identification unit 14 c). Further, the other first antenna 10 not specified as the adjustment target antenna is switched from the off state to the on state (execution of a first switching process).
  • the wireless communication terminal 200 is connected to each of the transmission circuit 13a, the detection circuit 13b-1, and the detection circuit 13b-2 only through the bidirectional coupler 12, and is turned on and off.
  • the first antenna 10 which can not be switched may be separately provided.
  • the configuration of the wireless communication terminal 100 may be incorporated into the configuration of the wireless communication terminal 200.
  • the first antenna 10 which can not switch between the on state and the off state that is, the first antenna 10 not connected to the switching device 17 is a part of the three first antennas 10 shown in FIG. (See FIG. 6), or may be another first antenna 10 (not shown) different from the three first antennas 10.
  • the switching device 17 may switch the plurality of second antennas 11 between the on state and the off state. Specifically, the switching device 17 connects each of the plurality of second antennas 11 to the detection circuit 13c (second detection circuit) so as to be able to switch between the on state and the off state. Then, for example, the second antenna 11 specified as the adjustment target antenna is switched from the on state to the off state, and the other second antennas 11 not specified as the adjustment target antenna are switched from the off state to the on state Is good (execution of the second switching process).
  • the detection circuit 13c second detection circuit
  • the wireless communication terminal 300 includes n transmittable / receivable antennas 30 (first antenna, second antenna) which can transmit and receive (n: arbitrary numerical value). This differs from the wireless communication terminals 100 and 200 according to 1 and 2.
  • n-1 transmission / reception antennas 30 from the third transmission / reception antenna 30 from the top toward the paper surface are omitted.
  • the transmitting circuit 13a, the detecting circuit 13b-1, and the detecting circuit 13b-2 are connected to each of the plurality of transmitting and receiving antennas 30 via the bidirectional coupler 12, and the wireless device 13 also differs from the wireless communication terminals 100 and 200 in that the detection circuit 13 does not have the detection circuit 13c.
  • the wireless communication terminal 300 differs from the wireless communication terminals 100 and 200 also in that the control device 14 executes the determination process twice. Specifically, when the determination unit 14 b determines that the environment outside the wireless communication terminal 300 has changed, the identification unit 14 c identifies the adjustment target antenna as the antenna for transmission and reception 30 that has functioned for transmission until then. The (first antenna) is switched for reception. Further, the specifying unit 14 c switches the transmitting and receiving antenna 30 (second antenna) that has been functioning for reception to that for transmission.
  • the calculation unit 14a calculates a transmission side change amount ⁇ ⁇ corresponding to the transmission signal transmitted by the transmission / reception antenna 30 (second antenna) which has been switched from reception to transmission. Then, the determination unit 14b that has received the calculation result compares the transmission side change amount ⁇ with the first threshold value ⁇ s, and the determination unit 14b executes the determination process again.
  • the specification unit 14c switches the predetermined transmission / reception antenna 30 specified as the adjustment target antenna from transmission to reception.
  • the specifying unit 14 c switches the predetermined transmission / reception antenna 30 that has been functioning for reception until then for transmission, and proceeds to step S ⁇ b> 307.
  • each of the detection circuits 13b-1 and 13b-2 connected to the transmission / reception antenna 30 switched from reception to transmission is synchronized with the signal transmitted from the transmission circuit 13a. Then, the power values of the powers P1 and P2 are detected. Also, among the detection circuits 13b-1 and 13b-2 connected to the transmission / reception antenna 30 switched from transmission to reception, a detection circuit connected to a port for extracting power from the antenna side Detects the power value of the power P3 in synchronization with the signal transmitted from the transmission circuit 13a, and the process proceeds to S308.
  • the calculation unit 14a calculates the transmission side change amount ⁇ ⁇ again based on the transmission signal transmitted from the transmission / reception antenna 30 switched from reception to transmission.
  • the calculation unit 14a does not calculate the receiving-side change amount ⁇ in the second calculation step.
  • the calculation result is transmitted to the determination unit 14b, and the process proceeds to S309.
  • the determination unit 14b compares the transmission side change amount ⁇ received from the calculation unit 14a with the first threshold value ⁇ s called from the storage device 15, and the process proceeds to S310. move on. Note that the comparison between the receiving side change amount ⁇ and the second threshold value ss is not made.
  • the determination unit 14b calls the second comparison table shown in FIG. 9 from the storage device 15, and the transmission / reception antenna 30 (switched for transmission) corresponding to the comparison result
  • the presence or absence of environmental change outside the wireless communication terminal 300 is determined by specifying the state of.
  • the transmission / reception antenna 30 switched for transmission is “changed”.
  • the environment in the vicinity of them has changed It shows that.
  • the determination unit 14 b determines that the environment has changed in the vicinity of each of the two transmitting and receiving antennas 30. This determination result is the same as in the case where the transmission side change amount ⁇ is smaller than the first threshold value ss.
  • the transmission side change amount ⁇ is equal to the first threshold value ⁇ s
  • “no change” is set for the transmission / reception antenna 30 switched for transmission.
  • This state indicates that only the predetermined transmission / reception antenna 30 identified as the adjustment target antenna in the first identification step (S305) has changed the environment in the vicinity thereof. Therefore, in the case of the above comparison result, the determination unit 14b determines that the environment has changed only in the vicinity of the predetermined transmission / reception antenna 30 specified as the adjustment target antenna.
  • control device 14 of the wireless communication terminal 300 can determine the presence or absence of an environmental change in the vicinity of each of the first and second antennas 10 and 11. Therefore, it is possible to detect changes in the environment outside the wireless communication terminal 300 more specifically and accurately.
  • the identifying unit 14c that receives the determination result receives the transmitting / receiving antenna in S311 (formal switching step). Formally switch 30 for transmission. A series of processes are completed by execution of the process of S311, and each process after S301 is performed again.
  • the calculation unit 14a changes the transmission side change amount of the two transmission / reception antennas 30 whose transmission / reception is switched respectively.
  • ⁇ is sent to the identification unit 14c.
  • the specifying unit 14c that has received the two transmission side change amounts ⁇ compares the two transmission side change amounts ⁇ in S312 (second specification step), and the transmitting / receiving antenna 30 with the larger change amount value. Is specified as the antenna to be adjusted, and the process proceeds to S313.
  • the matching device 16 that has received the specified result from the specifying unit 14c matches the impedance of the transmitting / receiving antenna 30 specified as the adjustment target antenna. After execution of the process of S313, each process after S301 is performed again.
  • the second antenna 11 of the wireless communication terminal 100 or 200 may be replaced with another device functioning as an antenna for reception.
  • the second antenna 11 of the wireless communication terminals 100 and 200 may be replaced with a vibrator 40.
  • the vibrator 40 is connected to the detection circuit 13 c via the coupler 12 a for extracting power from the signal received by the vibrator 40.
  • the signal line of the vibrator 40 itself is connected to a control circuit (not shown) provided in the wireless communication terminals 100 and 200. This signal line may be connected to the controller 14.
  • a touch panel, an input key, an earphone jack, etc. can be illustrated as apparatuses other than vibrator 40 which functions as an antenna for reception.
  • apparatuses other than vibrator 40 which functions as an antenna for reception.
  • the calculation unit 14a of the control device 14 may calculate a value other than the ratio (P2 / P1) of the power P2 of the reflected wave to the power P1 of the incident wave as the transmission side change amount ⁇ .
  • the reflection coefficient ⁇ or the standing wave ratio SWR may be calculated.
  • the standing wave ratio SWR can be obtained by the equation (1 + ⁇ (P1 / P2)) / (1 ⁇ (P1 / P2)).
  • a value other than the ratio ((P1-P2) / P3) of the power P3 of the received signal to the difference between the power P1 of the incident wave and the power P2 of the reflected wave may be calculated.
  • the ratio (P1 / P3) of the power P3 of the reception signal to the power P1 of the incident wave of the transmission signal may be calculated as the reception side variation ⁇ .
  • the power P1 of the incident wave of the transmission signal is calculated when calculating the transmission side change amount ⁇ and the reception side change amount ⁇ . It is not necessary to use it.
  • the calculation unit 14a of the control device 14 calculates the transmission side change amount ⁇ and the reception side change amount ⁇ ⁇ using only the power P2 of the reflected wave of the transmission signal and the power P3 of the reception signal.
  • any parameter (first change amount) representing a change in power of the transmitting antenna and some parameter (second method) indicating the change in the receiving antenna It is sufficient to monitor both of the change amounts) and compare the respective parameters with a predetermined threshold.
  • control apparatus 14 which concerns on each embodiment does not necessarily need to be equipped with the identification part 14c.
  • the user can display the determination result of the determination unit 14b on the display screen (not shown) of the display unit of the wireless communication terminal 100/200/300. It can recognize the presence or absence of environmental change.
  • the matching apparatus 16 which concerns on each embodiment may be further provided in the 2nd antenna 11 side.
  • the impedance of the second antenna 11 can be matched, so that the antenna performance of the wireless communication terminals 100, 200, 300 can be more accurately and easily It can be adjusted.
  • the wireless communication terminals 100, 200, and 300 do not necessarily have to include the alignment device 16.
  • the user may perform the matching operation of the impedance of the specified antenna. .
  • control block in particular, the calculation unit 14a and the determination unit 14b of the control device 14 may be realized by a logic circuit (hardware) formed in an integrated circuit (IC chip) or the like, or may be realized by software .
  • the control device 14 includes a computer that executes instructions of a program that is software that implements each function.
  • the computer includes, for example, at least one processor (control device) and at least one computer readable storage medium storing the program.
  • the processor reads the program from the recording medium and executes the program to achieve the object of the present invention.
  • a CPU Central Processing Unit
  • the above-mentioned recording medium a tape, a disk, a card, a semiconductor memory, a programmable logic circuit or the like can be used besides “a non-temporary tangible medium”, for example, a ROM (Read Only Memory).
  • a RAM Random Access Memory
  • the program may be supplied to the computer via any transmission medium (communication network, broadcast wave, etc.) capable of transmitting the program.
  • any transmission medium communication network, broadcast wave, etc.
  • one aspect of the present invention can also be realized in the form of a data signal embedded in a carrier wave in which the program is embodied by electronic transmission.
  • An electronic device (wireless communication terminals 100, 200, 300) according to aspect 1 of the present invention is an electronic device provided with at least two antennas and at least one control device (14), and the at least two antennas Of which the first antenna (10) transmits a first signal and the second antenna (11, vibrator 40) receives the first signal and generates a second signal
  • the control device is configured to: a first change amount (transmission-side change amount ⁇ ⁇ ) representing a power change of the first signal; and a second change amount (reception-side change amount ⁇ ) representing a power change of the second signal While comparing the first change amount calculated by the calculation process with the first threshold (.rho.s) and calculating the second change amount calculated by the calculation process and the second change amount calculated by the calculation process. Compare with a threshold of 2 ( ⁇ s) It allows to execute a determination processing for determining whether the external environment change of the electronic device.
  • the electronic device monitors both the change in power of the first antenna (transmitting side) and the change in power of the second antenna (receiving side) by the control device.
  • the presence or absence of environmental change outside the electronic device can be determined by comparing with the threshold value of. Therefore, environmental changes outside the electronic device can be detected with high accuracy as compared to the case of monitoring the power change of only one of the first antenna and the second antenna.
  • the second antenna can be substituted as a receiving probe, it is not necessary to separately provide a receiving probe for each transmitting antenna in the electronic device. Therefore, the number of parts can be reduced, and an electronic device with a simple configuration at low cost can be realized.
  • the electronic device according to aspect 2 of the present invention is the electronic device according to aspect 1, wherein at least one matching device (16) performs matching processing to match the impedance of at least one of the first antenna and the second antenna. ) May be provided.
  • the antenna performance of the electronic device can be accurately and easily adjusted.
  • the electronic device (wireless communication terminal 200) includes a plurality of the first antennas in aspect 1 or 2, and each of the plurality of first antennas is the first signal. And at least one switching device (17) connected to the first detection circuit (detection circuits 13b-1 and 13b-2) for detecting the power of And the switching device executes a first switching process of switching the first antenna from the on state to the off state and switching another one of the first antennas from the off state to the on state. May be
  • the switching device switches, for example, the first antenna affected by the environmental change from the on state to the off state, and the other first antenna not affected by the veterinary environmental change Can be switched from the off state to the on state. Therefore, the antenna performance of the electronic device can be accurately and easily adjusted.
  • the number of parts can be reduced as compared to the case where a detection circuit is connected to each antenna. It is possible to realize a low-cost and simple configuration electronic device.
  • the electronic device is provided with a plurality of the second antennas in the above aspect 3, and the switching device transmits the power of the second signal to each of the plurality of second antennas.
  • the second detection circuit (detection circuit 13c) to be detected is connected in a state in which the on state and the off state can be switched, and the second antenna is switched from the on state to the off state.
  • a second switching process of switching the second antenna from the off state to the on state may be executed.
  • the antenna performance of the electronic device can be adjusted more accurately and easily.
  • the number of parts can be further reduced, and an electronic device with a simple configuration with lower cost can be realized.
  • the at least two antennas can transmit and receive, and the control device can When it is determined in the determination process that the external environment of the electronic device has changed, the first antenna is switched for reception, the second antenna is switched for transmission, and the second antenna transmits
  • the determination processing may be performed again by comparing the first change amount representing the power change of the first signal with the first threshold.
  • the determination process can be performed twice by switching between transmission and reception of the first antenna and the second antenna. Therefore, as compared with the case where the first antenna is fixed for transmission and the second antenna is fixed for reception to determine the presence or absence of an environmental change outside the electronic device, the presence or absence of the environmental change is determined with higher accuracy. be able to.
  • the control device (14) is a control device that controls an electronic device (wireless communication terminals 100, 200, 300) provided with at least two antennas, and among the at least two antennas, A first antenna (10) transmits a first signal, and a second antenna (11) receives the first signal and generates a second signal, the first signal of A calculation unit (14a) that calculates a first change amount (transmission-side change amount ⁇ ⁇ ) representing a power change and a second change amount (reception-side change amount ⁇ ) representing a power change of the second signal; The first change amount calculated by the calculation unit is compared with the first threshold ( ⁇ s), and the second change amount calculated by the calculation unit and the second threshold ( ⁇ s) are calculated.
  • the environmental change outside the electronic device can be It comprises determining unit and (14b) determines the presence or absence of.
  • a control method is a control method for controlling an electronic device (wireless communication terminals 100, 200, 300) provided with at least two antennas, the first of the at least two antennas.
  • An antenna (10) transmits a first signal
  • a second antenna (12) receives the first signal to generate a second signal, and changes in power of the first signal.
  • Calculating (S102, S302) a first change amount (transmission side change amount ⁇ ⁇ ) representing the first change amount and a second change amount (reception side change amount ⁇ ) representing the power change of the second signal;
  • the first change amount calculated in the calculation step is compared with the first threshold value ( ⁇ s), and the second change amount calculated in the calculation step and the second threshold value ( ⁇ s)
  • the electronic device by comparing External determining step determines the presence or absence of environmental changes (S103, S104, S303, S304, S309, S310) and includes a.
  • control device may be realized by a computer.
  • control device is realized by the computer by operating the computer as each unit (software element) included in the control device.
  • the program of the control device and the computer readable recording medium recording the same also fall within the scope of the present invention.
  • First antenna at least 2 antennas
  • Second antenna at least 2 antennas
  • control device 14a calculation unit 14b determination unit
  • alignment device 17 switching device 30 transmitting and receiving antennas (at least two antennas)
  • vibrator second antenna 100, 200, 300 wireless communication terminals (electronic devices)

Abstract

La présente invention détecte avec une grande précision un changement environnemental à l'extérieur d'un appareil électronique. Un appareil électronique (100) est pourvu d'au moins deux antennes (10, 11) et d'au moins un dispositif de commande (14). Le dispositif de commande (14) effectue : un calcul pour calculer une première quantité de changement et une seconde quantité de changement ; et une détermination pour déterminer s'il existe un changement environnemental à l'extérieur de l'appareil électronique en comparant la première quantité de changement et une première valeur seuil l'une avec l'autre, et la seconde quantité de changement et une seconde valeur seuil l'une avec l'autre.
PCT/JP2018/028116 2017-09-01 2018-07-26 Appareil électronique, programme, dispositif de commande et procédé de commande WO2019044300A1 (fr)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1131980A (ja) * 1997-07-10 1999-02-02 Yaesu Musen Co Ltd 無線送信機のｓｗｒ表示装置
JP2010206357A (ja) * 2009-03-02 2010-09-16 Fujitsu Ltd 無線送受信装置
JP2016005137A (ja) * 2014-06-17 2016-01-12 株式会社東芝 アンテナ装置、アンテナの自動整合方法、無線装置、及び制御装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005027265A1 (fr) * 2003-09-15 2005-03-24 Lg Telecom, Ltd Systeme d'antenne a commutation de faisceaux, procede et appareil de commande de ce systeme

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1131980A (ja) * 1997-07-10 1999-02-02 Yaesu Musen Co Ltd 無線送信機のｓｗｒ表示装置
JP2010206357A (ja) * 2009-03-02 2010-09-16 Fujitsu Ltd 無線送受信装置
JP2016005137A (ja) * 2014-06-17 2016-01-12 株式会社東芝 アンテナ装置、アンテナの自動整合方法、無線装置、及び制御装置

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