JP6020299B2 - Wireless communication device - Google Patents

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JP6020299B2
JP6020299B2 JP2013071390A JP2013071390A JP6020299B2 JP 6020299 B2 JP6020299 B2 JP 6020299B2 JP 2013071390 A JP2013071390 A JP 2013071390A JP 2013071390 A JP2013071390 A JP 2013071390A JP 6020299 B2 JP6020299 B2 JP 6020299B2
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栄二 長竹
栄二 長竹
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Mitsubishi Electric Corp
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この発明は、周囲の環境に存在するエネルギーを利用して発電した電力を電源として動作し、無線回線を介して通信を行う無線通信装置に関するものである。   The present invention relates to a wireless communication apparatus that operates using power generated using energy existing in the surrounding environment as a power source and performs communication via a wireless line.

無線センサネットワークなど、多数の無線通信装置を設置するシステムでは、設置コスト削減、設置場所選択の自由度向上のため、無線通信装置へ電力を供給するための配線を不要にするという要求がある。この要求を実現する一つの方法として、無線通信装置に蓄電池を搭載し、その電力を用いて動作するという方法がある。更に、この蓄電池の充電方法として、周囲の環境に存在するエネルギーを利用して発電を行い、それによって得た電力を蓄電池へ蓄電して、無線通信装置の電源とする方法がある。なお、このような周囲の環境に存在するエネルギーを利用して行う発電は、環境発電と呼ばれている。   In a system in which a large number of wireless communication devices such as a wireless sensor network are installed, there is a demand for eliminating the need for wiring for supplying power to the wireless communication device in order to reduce the installation cost and improve the degree of freedom in selecting an installation location. As one method for realizing this requirement, there is a method in which a storage battery is mounted on a wireless communication device and operates using the power. Further, as a method for charging the storage battery, there is a method in which power is generated using energy existing in the surrounding environment, and electric power obtained thereby is stored in the storage battery to be used as a power source for the wireless communication device. Such power generation using energy existing in the surrounding environment is called energy harvesting.

このような無線通信装置では、蓄電池の残量を監視し、蓄電池の残量が十分ある時には制約を設けずに動作し、蓄電池の残量が少なくなると着信処理のみを行うよう制御して、蓄電池の消耗を軽減し通信可能時間を延長していた(例えば、特許文献1)。   In such a wireless communication device, the remaining amount of the storage battery is monitored, and when the remaining amount of the storage battery is sufficient, the operation is performed without restriction. The communication time is reduced and the communication time is extended (for example, Patent Document 1).

特開平10−209953号公報(第4頁、第2図)Japanese Patent Laid-Open No. 10-209953 (page 4, FIG. 2)

従来の無線通信装置は、蓄電池の出力電圧を監視し、予め固定的に設定した電圧閾値を用いた監視結果によって動作可否を判定しており、動作状態に応じた電圧監視を行っていないので、動作電流による出力電圧の降下によって検出される出力電圧値が変動してしまい、動作可否の判定精度が低下し、実際には動作可能な状態であっても動作不可と判定される場合があり、所望の動作が実行できないという問題があった。また、蓄電池が満充電の状態となった後、無線通信装置の動作が行われない、あるいは、電力消費量が電力供給量を下回るような動作のみが行われた場合には、発電により発生した電力が使用されることなく廃棄されることになり、発電した電力が効率的に利用できていないという問題もあった。   The conventional wireless communication device monitors the output voltage of the storage battery, determines whether the operation is possible based on a monitoring result using a voltage threshold fixedly set in advance, and does not perform voltage monitoring according to the operation state. The output voltage value detected by the drop in the output voltage due to the operating current fluctuates, and the accuracy of determining whether or not the operation is possible is reduced, and even in an actually operable state, it may be determined that the operation is impossible. There is a problem that a desired operation cannot be performed. In addition, after the storage battery is fully charged, the operation of the wireless communication device is not performed, or when only the operation in which the power consumption is less than the power supply amount is performed, it is generated by power generation There is also a problem that the generated power is not used efficiently because the power is discarded without being used.

この発明は、上記のような問題点を解決するためになされたもので、動作電流による電圧降下を考慮して蓄電池からの出力電圧を監視することにより、動作状態に応じて出力電圧が変動した場合でも、動作可否の判定精度が低下することを防止し、また、その時の電力供給状況が、最大の電力消費となる動作(例えば無線送信処理)には不十分な場合であっても、要求される動作が電力消費の小さなもの(例えば無線受信処理、装置内に閉じた制御処理など)である場合にはこれを実行することを選択可能とする無線通信装置を提供し、その時点で要求された動作を極力実行できるようにするとともに、発電した電力の有効利用を図ることを目的としている。   The present invention was made to solve the above-described problems, and the output voltage fluctuated in accordance with the operating state by monitoring the output voltage from the storage battery in consideration of the voltage drop due to the operating current. Even in this case, it is possible to prevent the accuracy of determining whether or not the operation can be prevented, and even if the power supply status at that time is insufficient for the operation that consumes the maximum power (for example, wireless transmission processing) If the operation to be performed is one that consumes little power (for example, wireless reception processing, control processing closed in the device, etc.), a wireless communication device that can be selected to execute this is provided and requested at that time The purpose of this is to make it possible to execute the operation as much as possible and to make effective use of the generated power.

この発明に係る無線通信装置は、発電した電力を電源として動作し、無線通信を行う無線通信装置であって、周囲の環境に存在するエネルギーを利用して発電を行い、発電出力を出力する発電部と、前記発電部が出力した前記発電出力を蓄積するとともに、給電出力を出力する蓄電部と、前記蓄電部が出力した前記給電出力から無線通信装置内で使用する電圧を生成し、作動電力を供給する電圧調整部と、前記蓄電部が出力した前記給電出力の電圧を監視し、電源監視結果を生成する電源監視部と、動作状態情報から電源監視基準の電圧範囲を決定し、前記電源監視基準の電圧範囲と前記電源監視部が生成した前記電源監視結果とに基づいて無線通信に対して許容する動作内容を判定し、許容動作情報を生成する電源管理部と、無線状態情報から生成した前記動作状態情報を前記電源管理部に送出し、前記電源管理部が生成した前記許容動作情報に従い無線通信の動作内容を、要求される優先度に応じて決定し動作内容指示として指示する動作制御部と、前記電圧調整部から供給される前記作動電力で動作し、前記動作制御部から指示された前記動作内容指示に従い無線信号の送受信を行うとともに、前記無線状態情報を前記動作制御部に送出する無線通信部とを備えた。   A wireless communication device according to the present invention is a wireless communication device that operates using generated power as a power source and performs wireless communication, generates power using energy existing in the surrounding environment, and generates power output And generating the voltage used in the wireless communication device from the power output output from the power storage unit and the power storage output from the power storage unit. A voltage adjustment unit that supplies power, monitors a voltage of the power supply output output by the power storage unit, generates a power monitoring result, determines a power monitoring reference voltage range from operating state information, and A power management unit that determines the operation content permitted for wireless communication based on the voltage range of the monitoring reference and the power monitoring result generated by the power monitoring unit, and generates wireless operation information; and wireless state information The generated operation state information is sent to the power management unit, and the operation content of wireless communication is determined according to the required priority in accordance with the allowable operation information generated by the power management unit and is indicated as an operation content instruction. An operation control unit that operates with the operating power supplied from the voltage adjustment unit, transmits and receives a radio signal according to the operation content instruction instructed by the operation control unit, and controls the radio state information to the operation control And a wireless communication unit for sending to the unit.

本発明によれば、動作電流による電圧降下を考慮して蓄電池からの出力電圧を監視することにより、動作状態に応じて出力電圧が変動した場合でも、動作可否の判定精度が低下することを防止し、また、その時の電力供給状況が、最大の電力消費となる動作には不十分な場合であっても、要求される動作が電力消費の小さなものである場合にはこれを実行することを選択可能としたので、その時点で要求された動作が極力実行できるようになるとともに、発電した電力の有効利用を図ることができる。   According to the present invention, by monitoring the output voltage from the storage battery in consideration of the voltage drop due to the operating current, even if the output voltage fluctuates according to the operating state, it is possible to prevent the determination accuracy of the operation availability from being lowered. In addition, even if the power supply status at that time is insufficient for the operation that achieves the maximum power consumption, if the required operation is a low power consumption operation, this is executed. Since the selection is made possible, the operation requested at that time can be performed as much as possible, and the generated power can be effectively used.

この発明の実施の形態1に係る無線通信装置の一構成例を示す図である。It is a figure which shows the example of 1 structure of the radio | wireless communication apparatus which concerns on Embodiment 1 of this invention. この発明の実施の形態1に係る蓄電部の蓄電デバイスから出力される電圧と電流の関係の一例を示した図である。It is the figure which showed an example of the relationship between the voltage output from the electrical storage device of the electrical storage part which concerns on Embodiment 1 of this invention, and an electric current. この発明の実施の形態1に係る電圧調整部の降圧レギュレータにおける入力電圧と出力電圧の関係の一例を示した図である。It is the figure which showed an example of the relationship between the input voltage and output voltage in the pressure | voltage fall regulator of the voltage regulator which concerns on Embodiment 1 of this invention. この発明の実施の形態1に係る電源管理部における電源監視基準の一例を示す図である。It is a figure which shows an example of the power supply monitoring reference | standard in the power supply management part which concerns on Embodiment 1 of this invention. この発明の実施の形態2に係る無線通信装置の一構成例を示す図である。It is a figure which shows one structural example of the radio | wireless communication apparatus which concerns on Embodiment 2 of this invention. この発明の実施の形態3に係る無線通信装置の一構成例を示す図である。It is a figure which shows one structural example of the radio | wireless communication apparatus which concerns on Embodiment 3 of this invention. この発明の実施の形態4に係る無線通信システムの動作シーケンスの一例を示す図である。It is a figure which shows an example of the operation | movement sequence of the radio | wireless communications system which concerns on Embodiment 4 of this invention.

実施の形態1.
この発明の実施の形態1では、電源監視部が給電出力の電圧を監視し、電源管理部が動作状態情報に含まれる無線通信の設定情報を用いて電源監視基準を無線通信処理ごとに決定するとともに電源監視結果を用いて無線通信に対して許容する動作内容を判定する無線通信装置について説明する。
Embodiment 1 FIG.
In the first embodiment of the present invention, the power monitoring unit monitors the voltage of the power supply output, and the power management unit determines the power monitoring reference for each wireless communication process using the wireless communication setting information included in the operation state information. A wireless communication apparatus that determines the operation content permitted for wireless communication using the power monitoring result will be described.

図1は、この発明の実施の形態1に係る無線通信装置の一構成例を示す図である。図において、発電部1は、周囲の環境に存在するエネルギーを利用して発電を行い、発電出力21を出力する。蓄電部2は、発電部1が出力した発電出力21を蓄積するとともに、給電出力22を出力する。電圧調整部3は、蓄電部2が出力した給電出力22から無線通信装置内で使用する電圧を生成し、作動電力23を供給する。電源監視部4は、蓄電部2が出力した給電出力22の電圧を監視し、電源監視結果24を生成する。電源管理部5は、動作状態情報から電源監視基準の電圧範囲を決定し、電源監視基準の電圧範囲と電源監視部4が生成した電源監視結果24とに基づいて、動作状態情報25に示される無線通信動作に対して許容する動作内容を判定し、許容動作情報26を生成する。動作制御部6は、無線状態情報27から生成した動作状態情報25を電源管理部5に送出し、電源管理部5が生成した許容動作情報26に従い無線通信の動作指示情報をその要求される優先度に応じて決定する。無線通信部7は、電圧調整部3から供給される作動電力23で動作し、動作制御部6からの動作指示情報28に従い無線信号の送受信を行うとともに、無線状態情報27を動作制御部6に送出する。   FIG. 1 is a diagram showing a configuration example of a wireless communication apparatus according to Embodiment 1 of the present invention. In the figure, the power generation unit 1 generates power using energy existing in the surrounding environment, and outputs a power generation output 21. The power storage unit 2 accumulates the power generation output 21 output by the power generation unit 1 and outputs the power supply output 22. The voltage adjustment unit 3 generates a voltage to be used in the wireless communication device from the power supply output 22 output from the power storage unit 2 and supplies the operating power 23. The power supply monitoring unit 4 monitors the voltage of the power supply output 22 output from the power storage unit 2 and generates a power supply monitoring result 24. The power management unit 5 determines the power monitoring reference voltage range from the operation state information, and is indicated in the operation state information 25 based on the power monitoring reference voltage range and the power monitoring result 24 generated by the power monitoring unit 4. The operation content permitted for the wireless communication operation is determined, and the allowable operation information 26 is generated. The operation control unit 6 sends the operation state information 25 generated from the wireless state information 27 to the power management unit 5, and according to the allowable operation information 26 generated by the power management unit 5, the wireless communication operation instruction information is requested for priority. Decide according to the degree. The wireless communication unit 7 operates with the operating power 23 supplied from the voltage adjustment unit 3, transmits and receives a wireless signal according to the operation instruction information 28 from the operation control unit 6, and transmits the wireless state information 27 to the operation control unit 6. Send it out.

次に動作について説明する。   Next, the operation will be described.

まず、発電部1は、周囲の環境に存在するエネルギー、例えば光、熱、振動、圧力、電磁波、運動エネルギーなどを利用して電気エネルギーに変換することで発電を行い、発電出力21を出力する。   First, the power generation unit 1 generates power by converting into electric energy using energy existing in the surrounding environment, for example, light, heat, vibration, pressure, electromagnetic waves, kinetic energy, and outputs a power generation output 21. .

蓄電部2は、発電出力21を電力として蓄積すると同時に、この蓄積した電力から給電出力22を出力する。ここで、蓄電部2を二次電池やキャパシタなどの充放電が可能な蓄電デバイスで実現する場合には、蓄電デバイス自体が持っている内部抵抗によって生じる電圧降下により、給電出力22の出力電流値に応じて出力電圧が変化する。   The power storage unit 2 accumulates the power generation output 21 as electric power, and at the same time outputs a power supply output 22 from the accumulated electric power. Here, when the power storage unit 2 is realized by a power storage device that can be charged and discharged, such as a secondary battery or a capacitor, an output current value of the power supply output 22 is generated due to a voltage drop caused by an internal resistance of the power storage device itself. The output voltage changes according to

図2は、この発明の実施の形態1に係る蓄電部の蓄電デバイスから出力される電圧と電流の関係の一例を示す図である。図において、例えば蓄電デバイスの内部抵抗の値をRint、出力電流値をIout、蓄電デバイスにおける出力電流値が0のときの出力電圧をVoとしたとき、蓄電デバイスから出力される電圧Vは、V=Vo−Rint×Ioutとなることを示している。このように、蓄電デバイス自体が持っている内部抵抗によって生じる電圧降下により、出力電流値に応じて出力電圧が変化することになる。   FIG. 2 is a diagram showing an example of the relationship between the voltage and current output from the power storage device of the power storage unit according to Embodiment 1 of the present invention. In the figure, for example, when the value of the internal resistance of the electricity storage device is Rint, the output current value is Iout, and the output voltage when the output current value of the electricity storage device is 0 is Vo, the voltage V output from the electricity storage device is V = Vo-Rint × Iout. Thus, the output voltage changes according to the output current value due to the voltage drop caused by the internal resistance of the power storage device itself.

電圧調整部3は、蓄電部2が出力した給電出力22から無線通信装置内の各部が動作するために必要な電圧を生成し、作動電力23を供給する。ここで、電圧調整部3を電圧レギュレータなどの電子部品を用いて実現する場合には、所望の電圧より高い電圧の入力に対して所定の電圧降下が生じる降圧レギュレータと呼ばれるものを使用することで、安定した出力電圧を得ることができる。   The voltage adjustment unit 3 generates a voltage necessary for each unit in the wireless communication device to operate from the power supply output 22 output from the power storage unit 2 and supplies the operating power 23. Here, when the voltage adjusting unit 3 is realized using an electronic component such as a voltage regulator, by using a so-called step-down regulator that generates a predetermined voltage drop with respect to an input of a voltage higher than a desired voltage. A stable output voltage can be obtained.

ここで、図3は、この発明の実施の形態1に係る電圧調整部の降圧レギュレータにおける入力電圧と出力電圧の関係の一例を示した図である。図において、例えば予め設定した所望の出力電圧をVset、所定の電圧降下をVdropとしたとき、(Vset+Vdrop)未満の入力電圧に対する出力電圧VoutはVout=Vin−Vdropとなるが、(Vset+Vdrop)以上の入力電圧に対してはVout=Vsetとなって一定の出力電圧が得られることを示している。このように、降圧レギュレータによれば、所望の電圧より高い電圧の入力に対して安定した出力電圧を得ることができるようになる。   Here, FIG. 3 is a diagram showing an example of the relationship between the input voltage and the output voltage in the step-down regulator of the voltage adjusting unit according to the first embodiment of the present invention. In the figure, for example, when a desired output voltage set in advance is Vset and a predetermined voltage drop is Vdrop, the output voltage Vout for an input voltage less than (Vset + Vdrop) is Vout = Vin−Vdrop, but is equal to or greater than (Vset + Vdrop). For the input voltage, Vout = Vset, indicating that a constant output voltage can be obtained. Thus, according to the step-down regulator, a stable output voltage can be obtained with respect to an input having a voltage higher than a desired voltage.

電源監視部4は、蓄電部2が出力した給電出力22の電圧を監視し、電源監視結果24を生成する。ここで、電源監視部4は、給電出力22の電圧値を示す電源監視結果24を生成する。   The power supply monitoring unit 4 monitors the voltage of the power supply output 22 output from the power storage unit 2 and generates a power supply monitoring result 24. Here, the power monitoring unit 4 generates a power monitoring result 24 indicating the voltage value of the power supply output 22.

電源管理部5は、動作状態情報25に含まれる無線通信動作に関して設定されている情報から無線動作状態に対する電源監視基準を生成し、動作状態情報25に含まれる動作状態に対応する電源監視基準の電圧範囲と電源監視部4が生成した電源監視結果24に示される電圧値とに基づいて、許容する動作内容を判定し、許容動作情報26を生成する。ここで、動作状態情報25は、無線通信動作に関して設定されている情報として無線送信電力、送信フレーム長、送信間隔、無線回路種別など、無線通信処理による消費電力を決定付ける情報と、動作状態に関して設定されている情報として送信中、受信中、制御中、待機中などそれぞれ異なる消費電力となる無線通信動作のうち、いずれの動作状態であるかを示す情報とを含んでいる。   The power management unit 5 generates a power monitoring reference for the wireless operation state from information set for the wireless communication operation included in the operation state information 25, and sets the power monitoring reference corresponding to the operation state included in the operation state information 25. Based on the voltage range and the voltage value indicated in the power supply monitoring result 24 generated by the power supply monitoring unit 4, the allowable operation content is determined and the allowable operation information 26 is generated. Here, the operation state information 25 includes information for determining power consumption by wireless communication processing, such as wireless transmission power, transmission frame length, transmission interval, and wireless circuit type, as information set for wireless communication operation, and operation state. The set information includes information indicating which operation state is in the wireless communication operation with different power consumption such as transmission, reception, control, and standby.

図4は、この発明の実施の形態1に係る電源管理部における電源監視基準の一例を示す図である。ここでは、電源監視基準として、例えば無線通信動作のうち無線送信処理が可能であると判定する電圧範囲を示すものについて説明する。送信中、受信中、制御中、待機中の各動作状態において、それぞれの消費電流の値に応じて現在の動作状態が送信中であればV1以上V2以下、受信中であればV3以上V4以下、制御中であればV5以上V6以下、待機中であればV7以上V8以下の電圧範囲を満たしているとき、次の動作として送信処理が可能と判定する。また、ここで説明した無線送信処理の判定だけでなく、無線受信処理、内部制御処理についても同様に、各動作状態に対して、それぞれの消費電流値に応じて無線受信処理、内部制御処理が可能であると判定する電圧範囲を示す電源監視基準を設定することができる。   FIG. 4 is a diagram showing an example of the power monitoring standard in the power management unit according to Embodiment 1 of the present invention. Here, as a power supply monitoring reference, for example, a wireless communication operation that indicates a voltage range that is determined to allow wireless transmission processing will be described. In each operating state during transmission, reception, control, and standby, depending on the current consumption value, if the current operation state is transmitting, V1 or more and V2 or less, and if receiving, V3 or more and V4 or less If the voltage range between V5 and V6 is satisfied during control and the voltage range between V7 and V8 is satisfied during standby, it is determined that transmission processing is possible as the next operation. In addition to the determination of the wireless transmission process described here, the wireless reception process and the internal control process are similarly performed for each operation state according to the respective current consumption values. It is possible to set a power supply monitoring reference indicating a voltage range that is determined to be possible.

例えば、まず、無線通信動作に関して設定されている情報に基づいて、該設定での無線信号送信、無線信号受信、内部制御処理、待機の各々の無線通信動作中に消費される電流値を予め設定された情報からそれぞれ選択して、図2を用いて説明したように、この電流値に基づいて給電出力22からの電圧降下量を算出する。あるいは、無線通信装置の保守機能としてキャリブレーションを行うための動作モードを設け、このモードにおいて送信中、受信中、制御中、待機中の各動作状態における実際の給電出力22からの電圧降下量を測定する。次に、図3を用いて説明したように、給電出力22に対する作動電力23の変化を考慮した上で、測定した電圧降下量を用いて、無線信号送信、無線信号受信、内部制御処理、待機など無線通信処理の動作状態のそれぞれに対して無線通信動作を行うために必要な給電出力22の電圧が維持できる電圧範囲を示す電圧閾値を算出し、これを電源監視基準として生成する。   For example, first, based on the information set for the wireless communication operation, the current value consumed during each wireless communication operation of the wireless signal transmission, wireless signal reception, internal control processing, and standby in the setting is set in advance. Each of the selected information is selected, and the voltage drop amount from the power supply output 22 is calculated based on this current value as described with reference to FIG. Alternatively, an operation mode for performing calibration as a maintenance function of the wireless communication apparatus is provided, and in this mode, an actual voltage drop amount from the power supply output 22 in each operation state during transmission, reception, control, and standby is calculated. taking measurement. Next, as described with reference to FIG. 3, taking into account the change in the operating power 23 relative to the power supply output 22, the measured voltage drop amount is used to transmit a radio signal, receive a radio signal, perform internal control processing, and wait. A voltage threshold value indicating a voltage range in which the voltage of the power supply output 22 necessary for performing the wireless communication operation with respect to each of the operation states of the wireless communication processing can be maintained and generated as a power monitoring reference.

このように設定した無線送信処理、無線受信処理、内部制御処理に対応した電源監視基準のうち、動作状態情報25が示す動作状態の処理に対応するものを用いて、電源監視結果24が示す給電出力22の電圧値が属している電圧範囲に該当する動作をその時点で許容される無線通信の動作内容として判定することで、許容動作情報26が生成される。ここで判定される動作内容は、1つとは限らず、複数許容できることもある。   Of the power supply monitoring standards corresponding to the wireless transmission process, the wireless reception process, and the internal control process set as described above, the power supply indicated by the power supply monitoring result 24 using the one corresponding to the operation state process indicated by the operation state information 25. The permissible operation information 26 is generated by determining the operation corresponding to the voltage range to which the voltage value of the output 22 belongs as the operation content of the wireless communication permitted at that time. The operation content determined here is not limited to one, and a plurality of operation contents may be allowed.

動作制御部6は、無線状態情報27から生成した動作状態情報25を電源管理部5に送出し、電源管理部5が生成した許容動作情報26に従い無線通信の動作内容をその要求される優先度に応じて決定する。ここで、動作状態情報25は、無線通信動作に関して設定されている情報と無線通信部7から受け取った無線通信処理の動作状態を示す無線状態情報27とを用いて生成され、電源管理部5へ送られる。また、動作指示情報28は、無線通信部7から要求された無線通信動作が許容動作情報26に示された次の動作内容として許容されている場合にはその無線通信動作を実行するように指示する情報として生成される。このとき、要求されている無線通信動作として複数の処理があった場合には、それらの処理に対する優先度に応じて許容される順に実行するよう制御する。例えば、要求されている動作として無線送信処理と無線受信処理があり、その時点で許容動作情報26が示す動作内容が無線受信処理のみであったとき、無線受信処理の優先度が高い場合にはこれを実行し、無線送信処理の優先度が高い場合には無線送信処理が許容される状態となるまで無線受信処理を実行せずに待つように動作する。即ち、この場合には、発電部1が発電することによって蓄電部2の蓄電残量が増加し給電出力22の電圧が無線送信処理が許容される値となるまで無線受信処理を実行せずに待つことになる。ここで使用する優先度は、予め固定値として設定してもよいし、送信データの有無、タイマによる実行予約時間、処理待ち許容時間、優先データ(優先サービス、緊急データなど)の該否などの情報に応じて重み付けを行って算出した重み値の合計によって決定してもよい。   The operation control unit 6 sends the operation state information 25 generated from the wireless state information 27 to the power management unit 5, and the operation content of the wireless communication is requested according to the allowable operation information 26 generated by the power management unit 5. To be decided. Here, the operation state information 25 is generated using information set for the wireless communication operation and the wireless state information 27 indicating the operation state of the wireless communication process received from the wireless communication unit 7, and is sent to the power management unit 5. Sent. The operation instruction information 28 is an instruction to execute the wireless communication operation when the wireless communication operation requested from the wireless communication unit 7 is permitted as the next operation content indicated in the allowable operation information 26. Is generated as information. At this time, when there are a plurality of processes as the requested wireless communication operation, control is performed so that the processes are executed in an allowed order according to the priority for the processes. For example, there are wireless transmission processing and wireless reception processing as requested operations, and when the operation content indicated by the allowable operation information 26 is only wireless reception processing at that time, and when the priority of the wireless reception processing is high This is executed, and when the priority of the wireless transmission processing is high, the wireless transmission processing is performed without waiting until the wireless transmission processing is permitted. That is, in this case, the power reception unit 1 does not execute the wireless reception process until the remaining amount of power stored in the power storage unit 2 increases and the voltage of the power supply output 22 reaches a value that allows the wireless transmission process. I will wait. The priority used here may be set in advance as a fixed value, such as the presence / absence of transmission data, execution reservation time by a timer, allowable processing waiting time, whether or not priority data (priority service, emergency data, etc.) You may determine by the sum total of the weight value calculated by performing weighting according to information.

無線通信部7は、電圧調整部3から供給される作動電力23で動作し、動作制御部6からの動作指示情報28に従い無線信号の送受信を行うとともに、無線状態情報27を動作制御部6に送出する。   The wireless communication unit 7 operates with the operating power 23 supplied from the voltage adjustment unit 3, transmits and receives a wireless signal according to the operation instruction information 28 from the operation control unit 6, and transmits the wireless state information 27 to the operation control unit 6. Send it out.

なお、この発明の実施の形態1では、蓄電部2が出力した給電出力22の電圧値の情報を電源監視部4から電源管理部5へ電圧値のまま電源監視結果24として通知するものを説明したが、電源監視部4と電源管理部5の間で、電源監視のために予め設定された複数の電圧閾値を共有し、電源監視部4から電源管理部5へ給電出力22の電圧値が該当した電圧閾値で定まる電圧範囲を示す電源監視結果24を生成して通知してもよい。このとき、複数の電圧閾値は、無線信号送信、無線信号受信、内部制御処理、待機中など無線通信処理の動作状態に応じて変化する給電出力22の電圧範囲の中でいずれの動作状態に対応する電圧であるかを判別するのに十分な粒度を持つよう設定しておく。   In the first embodiment of the present invention, information on the voltage value of the power supply output 22 output by the power storage unit 2 is notified from the power monitoring unit 4 to the power management unit 5 as the power monitoring result 24 with the voltage value maintained. However, the power monitoring unit 4 and the power management unit 5 share a plurality of voltage thresholds set in advance for power monitoring, and the voltage value of the power supply output 22 is transferred from the power monitoring unit 4 to the power management unit 5. The power supply monitoring result 24 indicating the voltage range determined by the corresponding voltage threshold may be generated and notified. At this time, the plurality of voltage threshold values correspond to any operation state in the voltage range of the power supply output 22 that changes according to the operation state of the wireless communication process such as wireless signal transmission, wireless signal reception, internal control processing, and standby. It is set so as to have a granularity sufficient to determine whether the voltage is to be applied.

以上のように、この発明の実施の形態1に係る無線通信装置によれば、電源管理部が無線通信部の設定情報に対応する電源監視基準を無線通信処理ごとに決定するとともに、その時点での電源監視結果と無線通信部の動作状態に応じて次に無線通信部に対して許容する動作内容を判定するようにしているので、動作電流による電圧降下を考慮して出力電圧監視で用いる電圧閾値を動的に設定するため、動作状態に応じて出力電圧が変動した場合でも、動作可否の判定精度が低下することを防止できる。また、その時の電力供給状況が、最大の電力消費となる動作には不十分な場合でも、要求される動作がその時点の供給電力で賄うことのできるものであればこれを実行することが可能となり、発電した電力の有効利用を図ることができる。   As described above, according to the wireless communication device according to the first embodiment of the present invention, the power management unit determines the power monitoring reference corresponding to the setting information of the wireless communication unit for each wireless communication process, and at that time Since the operation content allowed for the wireless communication unit is determined next according to the power monitoring result of the wireless communication unit and the operation state of the wireless communication unit, the voltage used for output voltage monitoring in consideration of the voltage drop due to the operating current Since the threshold value is dynamically set, it is possible to prevent the determination accuracy of the operation availability from being lowered even when the output voltage varies depending on the operation state. In addition, even if the power supply status at that time is insufficient for the operation that maximizes the power consumption, it can be executed if the required operation can be covered by the power supply at that time. Thus, the generated power can be effectively used.

また、この発明の実施の形態1に係る無線通信装置によれば、動作制御部がその時点での優先度に応じて次に実行する処理を決定しているので、その時の電力供給状況が優先度の高い処理を実行するには不十分な場合には、蓄電残量が優先度の高い処理を実行可能な状況となるまで優先度の低い他の処理を実行せずに待ち、優先度の高い処理を優先的に実行することが可能となる。   Further, according to the wireless communication apparatus according to Embodiment 1 of the present invention, the operation control unit determines the next process to be executed according to the priority at that time, so the power supply status at that time has priority. If it is insufficient to execute the high-level processing, wait until the remaining power level becomes a state where high-priority processing can be executed, without executing other low-priority processing. High processing can be executed preferentially.

また、この発明の実施の形態1に係る無線通信装置によれば、電源管理部が無線通信部の設定内容や回路種別に応じて電源監視基準を決定しているので、無線通信部に対する設定変更や、モジュール交換などの方法によって無線通信部を異なる回路へ変更した場合にも対応が可能となる。   In addition, according to the wireless communication apparatus according to the first embodiment of the present invention, the power management unit determines the power monitoring reference according to the setting content and circuit type of the wireless communication unit, so the setting change for the wireless communication unit It is also possible to cope with a case where the wireless communication unit is changed to a different circuit by a method such as module replacement.

実施の形態2.
先に示した実施の形態1では、電源監視部が給電出力の電圧を監視し、電源管理部が動作状態情報に含まれる無線通信の設定情報を用いて電源監視基準を無線通信処理ごとに決定するとともに電源監視結果を用いて無線通信に対して許容する動作内容を判定するよう構成したものについて説明した。次に、この実施の形態2では、電源管理部が無線通信の設定情報を用いて決定した電源監視基準に従い電源監視部が電源監視を行うものについて説明する。
Embodiment 2. FIG.
In the first embodiment described above, the power supply monitoring unit monitors the voltage of the power supply output, and the power supply management unit determines the power supply monitoring reference for each wireless communication process using the wireless communication setting information included in the operation state information. In addition, a description has been given of the configuration configured to determine the operation content permitted for wireless communication using the power monitoring result. Next, in the second embodiment, a description will be given of the case where the power supply monitoring unit performs power supply monitoring according to the power supply monitoring standard determined by the power supply management unit using the wireless communication setting information.

図5は、この発明の実施の形態2に係る無線通信装置の一構成例を示す図である。ここで、実施の形態1の説明と同一符号を付したものは同様に動作する。   FIG. 5 is a diagram showing a configuration example of a wireless communication apparatus according to Embodiment 2 of the present invention. Here, the same reference numerals as those in the first embodiment operate in the same manner.

電源監視部4aは、電源管理部5aから指示された電源監視基準29に従い蓄電部2の給電出力22の電圧を監視する。電源管理部5aは、無線通信に関する設定情報や動作状態と関係付けて電源を管理するための電源監視基準29を決定して電源監視部4aに指示するとともに、電源監視部4aから得た電源監視結果24aおよび動作状態情報25から無線通信に対して許容する動作内容を判定する。   The power supply monitoring unit 4a monitors the voltage of the power supply output 22 of the power storage unit 2 in accordance with the power supply monitoring reference 29 instructed from the power supply management unit 5a. The power management unit 5a determines the power monitoring reference 29 for managing the power in association with the setting information and the operation state related to the wireless communication, instructs the power monitoring unit 4a, and obtains the power monitoring obtained from the power monitoring unit 4a. The operation content permitted for the wireless communication is determined from the result 24a and the operation state information 25.

次に動作について説明する。   Next, the operation will be described.

電源監視部4aは、指示された電源監視基準29に従い蓄電部2の給電出力22の電圧を監視し、電源監視結果24aを出力する。ここで、電源監視部4aにおける電圧監視は、電源監視基準29で指示された複数の電圧閾値を用いて、これら電圧閾値を境界としていずれの範囲にあるかを検出するよう動作し、給電出力22の電圧値が該当した電圧閾値で定まる電圧範囲を示す電源監視結果24を生成する。この複数の電圧閾値は、電源管理部5にて説明する無線信号送信、無線信号受信、内部制御処理、待機中など無線通信処理の動作状態に応じて変化する給電出力22の電圧範囲の中でいずれの動作状態に対応する電圧であるかを判別するのに十分な粒度を持つよう設定しておく。   The power supply monitoring unit 4a monitors the voltage of the power supply output 22 of the power storage unit 2 according to the instructed power supply monitoring reference 29, and outputs a power supply monitoring result 24a. Here, the voltage monitoring in the power supply monitoring unit 4a operates using a plurality of voltage threshold values specified by the power supply monitoring reference 29 to detect in which range the voltage threshold values are used as boundaries, and the power supply output 22 A power monitoring result 24 indicating a voltage range determined by the corresponding voltage threshold is generated. The plurality of voltage thresholds are within the voltage range of the power supply output 22 that changes in accordance with the operation state of the wireless communication process such as wireless signal transmission, wireless signal reception, internal control processing, and standby described in the power management unit 5. It is set so as to have a granularity sufficient to determine which operating state the voltage corresponds to.

電源管理部5aは、動作状態情報25に含まれる無線通信動作に関して設定されている情報を用いて電源監視基準29を決定するとともに、電源監視結果24aに示される電圧範囲の情報と動作状態情報25に含まれる無線通信の動作状態(送信中、受信中、待機中など)を示す情報とを用いて無線通信に対して許容する動作内容を判定し許容動作情報26を送出する。ここで、動作状態情報25は、実施の形態1と同様に構成される。また、電源監視基準29は、実施の形態1でも説明したように決定すればよい。   The power management unit 5a determines the power monitoring reference 29 using information set for the wireless communication operation included in the operation state information 25, and information on the voltage range and the operation state information 25 indicated in the power monitoring result 24a. The operation content permitted for the wireless communication is determined using the information indicating the operation state of the wireless communication (transmitting, receiving, waiting, etc.) included in the information, and the allowable operation information 26 is transmitted. Here, the operation state information 25 is configured in the same manner as in the first embodiment. Further, the power monitoring reference 29 may be determined as described in the first embodiment.

このように、電源管理部5aから電源監視部4aに電源監視基準29が送られ、電圧閾値が給電出力22の監視に用いられた結果、電源監視部4aから給電出力22が電源監視基準29に示されたどの無線通信処理の電圧範囲にあるかを示した電圧範囲の情報を含む電源監視結果24aが電源管理部5aに返される。   As described above, the power monitoring reference 29 is sent from the power management unit 5 a to the power monitoring unit 4 a and the voltage threshold is used to monitor the power feeding output 22. As a result, the power feeding output 22 from the power monitoring unit 4 a becomes the power monitoring reference 29. A power monitoring result 24a including information on the voltage range indicating which wireless communication processing voltage range is indicated is returned to the power management unit 5a.

また、電源管理部5aは、無線送信処理、無線受信処理、内部制御処理の無線通信処理のうち、動作状態情報25が示す動作状態に対応する電源監視基準29を用いて、電源監視結果24aから得た給電出力22の電圧値が属している電圧範囲に該当する動作をその時点で許容される無線通信の動作内容を判定することで許容動作情報26を生成する。   In addition, the power management unit 5a uses the power monitoring reference 29 corresponding to the operation state indicated by the operation state information 25 among the wireless communication processes of the wireless transmission process, the wireless reception process, and the internal control process, from the power monitoring result 24a. The permissible operation information 26 is generated by determining the operation content of the wireless communication that allows the operation corresponding to the voltage range to which the voltage value of the obtained power supply output 22 belongs.

動作制御部6は、この発明の実施の形態1でも説明したように、電源管理部5が生成した許容動作情報26に従い無線通信の動作内容をその要求される優先度に応じて決定する。無線通信部7は、この発明の実施の形態1でも説明したように、電圧調整部3から供給される作動電力23で動作し、動作制御部6からの動作指示情報28に従い無線信号の送受信を行うとともに、無線状態情報27を動作制御部6に送出する。   As described in the first embodiment of the present invention, the operation control unit 6 determines the operation content of the wireless communication according to the required priority according to the allowable operation information 26 generated by the power management unit 5. As described in the first embodiment of the present invention, the wireless communication unit 7 operates with the operating power 23 supplied from the voltage adjustment unit 3, and transmits and receives wireless signals according to the operation instruction information 28 from the operation control unit 6. At the same time, the wireless state information 27 is sent to the operation control unit 6.

なお、電源管理部5aから電源監視部4aに送られる電源監視基準29は、例えば動作状態情報25が示す動作状態が更新されるごとに、該動作状態に対応する電源監視基準29のみ送ることで判定すべき電圧閾値の数を削減してもよく、電源監視基準29も適宜設計し直してもよい。あるいは、動作状態の更新ごとではなく、最初または定期的にすべての動作状態に対応する電源監視基準29を送ることでデータ量を削減して運用するようにしてもよい。   Note that the power monitoring reference 29 sent from the power management unit 5a to the power monitoring unit 4a is sent by sending only the power monitoring reference 29 corresponding to the operation state, for example, every time the operation state indicated by the operation state information 25 is updated. The number of voltage thresholds to be determined may be reduced, and the power monitoring reference 29 may be redesigned as appropriate. Alternatively, it may be operated by reducing the amount of data by sending the power monitoring reference 29 corresponding to all the operation states first or periodically instead of every update of the operation state.

また、この発明の実施の形態2では、電源監視部4aから給電出力22が電源監視基準29に示されたどの無線通信処理の電圧範囲にあるかを示した電圧範囲の情報を含む電源監視結果24aが電源管理部5aに返され、電源管理部5aが動作状態情報25に示される動作状態に対応する電源監視基準29を用いて、電源監視結果24aから得た給電出力22の電圧値が属している電圧範囲に該当する動作をその時点で許容される無線通信の動作内容を判定するものとして説明したが、電源管理部5aは動作状態情報25に示される動作状態を電源監視部4aに通知することで、許容される無線通信の動作内容の判定まで電源監視部4aに行わせ、判定結果を電源監視結果24aとして電源監視部4aから得て、この判定結果から許容動作情報26を生成するようにしてもよい。   Further, in the second embodiment of the present invention, the power supply monitoring result including the information on the voltage range indicating the wireless communication processing voltage range indicated by the power supply monitoring reference 29 from the power supply monitoring unit 4a. 24a is returned to the power management unit 5a, and the power management unit 5a uses the power monitoring reference 29 corresponding to the operation state indicated in the operation state information 25 to which the voltage value of the power supply output 22 obtained from the power monitoring result 24a belongs. Although the operation corresponding to the voltage range is described as determining the operation content of the wireless communication allowed at that time, the power management unit 5a notifies the power monitoring unit 4a of the operation state indicated by the operation state information 25 By doing so, the power supply monitoring unit 4a performs the determination of the operation content of the allowable wireless communication, the determination result is obtained from the power supply monitoring unit 4a as the power supply monitoring result 24a, and the allowable operation information is obtained from the determination result. 26 may be generated to.

以上のように、この発明の実施の形態2に係る無線通信装置によれば、電源管理部が無線通信処理ごとに決定した電源監視基準に従い電源監視部が電源監視を行うようにしているので、電源監視部が必要最小限の数の電圧閾値によって電圧監視を行えば良く、電圧監視のための回路構成を簡易なものとすることができる。   As described above, according to the wireless communication device according to the second embodiment of the present invention, the power monitoring unit performs power monitoring according to the power monitoring standard determined for each wireless communication process by the power management unit. The power supply monitoring unit may perform voltage monitoring with the minimum necessary number of voltage thresholds, and the circuit configuration for voltage monitoring can be simplified.

また、この発明の実施の形態2に係る無線通信装置によれば、この発明の実施の形態1に係る無線通信装置と同様に、電源管理部が電源監視部から受けた電源監視結果と無線通信部の動作状態に応じて次に無線通信部に対して許容する動作内容を判定するようにしているので、動作電流による電圧降下を考慮して出力電圧監視で用いる電圧閾値を動的に設定するため、動作状態に応じて出力電圧が変動した場合でも、動作可否の判定精度が低下することを防止できる。また、その時の電力供給状況が、最大の電力消費となる動作には不十分な場合でも、要求される動作がその時点の供給電力で賄うことのできるものであればこれを実行することが可能となり、発電した電力の有効利用を図ることができる。   Further, according to the wireless communication apparatus according to the second embodiment of the present invention, the power monitoring result received from the power monitoring section by the power management section and the wireless communication, as in the wireless communication apparatus according to the first embodiment of the present invention. Since the operation content allowed for the wireless communication unit next is determined according to the operation state of the unit, the voltage threshold used for output voltage monitoring is dynamically set in consideration of the voltage drop due to the operating current. Therefore, even when the output voltage fluctuates according to the operation state, it is possible to prevent the determination accuracy of the operation availability from being lowered. In addition, even if the power supply status at that time is insufficient for the operation that maximizes the power consumption, it can be executed if the required operation can be covered by the power supply at that time. Thus, the generated power can be effectively used.

また、この発明の実施の形態2に係る無線通信装置によれば、この発明の実施の形態1に係る無線通信装置と同様に、動作制御部がその時点での優先度に応じて次に実行する処理を決定しているので、その時の電力供給状況が優先度の高い処理を実行するには不十分な場合には、蓄電残量が優先度の高い処理を実行可能な状況となるまで優先度の低い他の処理を実行せずに待ち、優先度の高い処理を優先的に実行することが可能となる。   Further, according to the wireless communication apparatus according to the second embodiment of the present invention, the operation control unit executes next according to the priority at that time, similarly to the wireless communication apparatus according to the first embodiment of the present invention. If the power supply status at that time is insufficient to execute a process with a high priority, priority is given until the remaining amount of power storage becomes a situation where a process with a high priority can be executed. It is possible to wait without executing other low-level processes and to execute a high-priority process preferentially.

実施の形態3.
先に示した実施の形態1では、電源監視部が給電出力の電圧を監視し、電源管理部が動作状態情報に含まれる無線通信の設定情報を用いて電源監視基準を無線通信処理ごとに決定するとともに電源監視結果を用いて無線通信に対して許容する動作内容を判定するよう構成したものについて説明した。次に、この実施の形態3では、給電出力だけでなく発電出力も電源監視部の監視対象とし、これらの情報を基に蓄電部への電力蓄積状況を予測し、これを加味して電源管理部が無線通信に対して許容する動作内容を判定するものについて説明する。
Embodiment 3 FIG.
In the first embodiment described above, the power supply monitoring unit monitors the voltage of the power supply output, and the power supply management unit determines the power supply monitoring reference for each wireless communication process using the wireless communication setting information included in the operation state information. In addition, a description has been given of the configuration configured to determine the operation content permitted for wireless communication using the power monitoring result. Next, in this third embodiment, not only the power supply output but also the power generation output is monitored by the power supply monitoring unit, the power storage status in the power storage unit is predicted based on these information, and this is taken into account to manage the power supply A description will be given of what determines the operation content that the unit allows for wireless communication.

図6は、この発明の実施の形態3に係る無線通信装置の一構成例を示す図である。実施の形態1の説明と同一符号を付したものは同様に動作する。   FIG. 6 is a diagram showing a configuration example of a wireless communication apparatus according to Embodiment 3 of the present invention. Those denoted by the same reference numerals as those in the first embodiment operate in the same manner.

電源監視部4bは、給電出力22の電圧を監視するとともに、発電出力21の電圧を監視する。電源管理部5bは、無線通信に関する設定情報や動作状態と関係付けて電源を管理するための電源監視基準を決定するとともに、電源監視部4bからの電源監視結果24bを用いて無線通信に対して許容する動作内容を判定する。   The power monitoring unit 4b monitors the voltage of the power supply output 22 and the voltage of the power generation output 21. The power management unit 5b determines a power monitoring standard for managing power in association with setting information and operation state related to wireless communication and uses the power monitoring result 24b from the power monitoring unit 4b to perform wireless communication. The allowable operation content is determined.

次に動作について説明する。   Next, the operation will be described.

電源監視部4bは、蓄電部2からの給電出力22の電圧と発電部1からの発電出力21の電圧を監視し、電源監視結果24bを出力する。ここで、電源監視部4bは、発電出力21と給電出力22の電圧値を示す電源監視結果24bを生成する。   The power supply monitoring unit 4b monitors the voltage of the power supply output 22 from the power storage unit 2 and the voltage of the power generation output 21 from the power generation unit 1, and outputs a power supply monitoring result 24b. Here, the power supply monitoring unit 4 b generates a power supply monitoring result 24 b indicating the voltage values of the power generation output 21 and the power supply output 22.

電源管理部5bは、動作状態情報25に含まれる無線通信動作に関して設定されている情報を用いて電源監視基準を決定するとともに、電源監視結果24bで通知された発電出力21の電圧値から蓄電部2への電力蓄積状況を予測し、また、電源監視結果24bで通知された給電出力22の電圧値と動作状態情報25に含まれる無線通信の動作状態(送信中、受信中、待機中など)を示す情報を用いて無線通信に対して許容する動作内容を判定し許容動作情報26を送出する。ここで、無線通信に対して許容する動作内容の判定では、電源監視基準のうち動作状態情報25が示す動作状態に対応するものを用いて、蓄電部2への電力蓄積状況の予測結果を加味した場合に電源監視結果24bが示す給電出力22の電圧値が属することになる電圧範囲に該当する動作をその時点で許容される無線通信の動作内容として判定し許容動作情報26として出力する。   The power management unit 5b determines the power monitoring reference using information set for the wireless communication operation included in the operation state information 25, and also stores the power storage unit from the voltage value of the power generation output 21 notified by the power monitoring result 24b. 2 is predicted, and the power value of the power supply output 22 notified by the power supply monitoring result 24b and the operation state of wireless communication included in the operation state information 25 (transmitting, receiving, waiting, etc.) The operation content permitted for the wireless communication is determined using the information indicating the information, and the allowable operation information 26 is transmitted. Here, in the determination of the operation content permitted for wireless communication, the power supply monitoring standard corresponding to the operation state indicated by the operation state information 25 is used and the prediction result of the power storage state in the power storage unit 2 is taken into consideration. In this case, the operation corresponding to the voltage range to which the voltage value of the power supply output 22 indicated by the power supply monitoring result 24b belongs is determined as the operation content of the wireless communication permitted at that time, and is output as the allowable operation information 26.

なお、この発明の実施の形態3では、発電部1が出力した発電出力21と蓄電部2が出力した給電出力22の電圧値の情報を電源監視部4bから電源管理部5bへ電圧値のまま電源監視結果24bとして通知するものを説明したが、電源監視部4bと電源管理部5bの間で、発電出力21と給電出力22の電源監視のために予め設定された複数の電圧閾値を共有し、電源監視部4bから電源管理部5bへ発電出力21と給電出力22の電圧値がそれぞれ該当した電圧範囲を示す電源監視結果24bを生成して通知してもよい。このとき、発電出力21に対する複数の電圧閾値は、発電方法に応じて予め設定された発電電圧の変動範囲を複数の段階に分けるよう設定しておく。また、給電出力22に対する複数の電圧閾値は、無線信号送信、無線信号受信、内部制御処理、待機中など無線通信処理の動作状態に応じて変化する給電出力22の電圧範囲の中でいずれの動作状態に対応する電圧であるかを判別するのに十分な粒度を持つよう設定しておく。   In the third embodiment of the present invention, the voltage value information of the power generation output 21 output from the power generation unit 1 and the power supply output 22 output from the power storage unit 2 is kept from the power monitoring unit 4b to the power management unit 5b. Although what has been notified as the power monitoring result 24b has been described, a plurality of voltage thresholds set in advance for power monitoring of the power generation output 21 and the power feeding output 22 are shared between the power monitoring unit 4b and the power management unit 5b. The power monitoring unit 4b may generate and notify the power management unit 5b by generating the power monitoring result 24b indicating the voltage ranges corresponding to the voltage values of the power generation output 21 and the power feeding output 22, respectively. At this time, the plurality of voltage thresholds for the power generation output 21 are set so as to divide the fluctuation range of the power generation voltage set in advance according to the power generation method into a plurality of stages. In addition, the plurality of voltage thresholds for the power supply output 22 may be any operation within the voltage range of the power supply output 22 that varies depending on the operation state of the wireless communication process such as wireless signal transmission, wireless signal reception, internal control processing, and standby. It is set to have a granularity sufficient to determine whether the voltage corresponds to the state.

以上のように、この発明の実施の形態3に係る無線通信装置によれば、電源監視部4bが給電出力22に加えて発電出力21を監視し、電源管理部5bが以降の蓄電部2への電力蓄積状況を予測し許容される無線通信の動作内容を判定するようにしているので、その時の発電状況を踏まえて実行すべき処理内容の選択を行うことにより、次に要求される無線通信動作をより確実に実行できるようにすることができる。   As described above, according to the wireless communication apparatus according to the third embodiment of the present invention, the power supply monitoring unit 4b monitors the power generation output 21 in addition to the power supply output 22, and the power management unit 5b transfers to the subsequent power storage unit 2. Since the power storage status is predicted and the operation content of the allowable wireless communication is determined, the next required wireless communication is selected by selecting the processing content to be executed based on the power generation status at that time. The operation can be performed more reliably.

また、この発明の実施の形態3に係る無線通信装置によれば、この発明の実施の形態1に係る無線通信装置と同様に、電源管理部が電源監視部から受けた電源監視結果と無線通信部の動作状態に応じて次に無線通信部に対して許容する動作内容を判定するようにしているので、動作電流による電圧降下を考慮して出力電圧監視で用いる電圧閾値を動的に設定するため、動作状態に応じて出力電圧が変動した場合でも、動作可否の判定精度が低下することを防止できる。また、その時の電力供給状況が、最大の電力消費となる動作には不十分な場合でも、要求される動作がその時点の供給電力で賄うことのできるものであればこれを実行することが可能となり、発電した電力の有効利用を図ることができる。   In addition, according to the wireless communication apparatus according to the third embodiment of the present invention, as in the wireless communication apparatus according to the first embodiment of the present invention, the power monitoring result received from the power monitoring section by the power management section and the wireless communication Since the operation content allowed for the wireless communication unit next is determined according to the operation state of the unit, the voltage threshold used for output voltage monitoring is dynamically set in consideration of the voltage drop due to the operating current. Therefore, even when the output voltage fluctuates according to the operation state, it is possible to prevent the determination accuracy of the operation availability from being lowered. In addition, even if the power supply status at that time is insufficient for the operation that maximizes the power consumption, it can be executed if the required operation can be covered by the power supply at that time. Thus, the generated power can be effectively used.

また、この発明の実施の形態3に係る無線通信装置によれば、この発明の実施の形態1に係る無線通信装置と同様に、動作制御部がその時点での優先度に応じて次に実行する処理を決定しているので、その時の電力供給状況が優先度の高い処理を実行するには不十分な場合には、蓄電残量が優先度の高い処理を実行可能な状況となるまで優先度の低い他の処理を実行せずに待ち、優先度の高い処理を優先的に実行することが可能となる。   Further, according to the wireless communication apparatus according to the third embodiment of the present invention, as in the wireless communication apparatus according to the first embodiment of the present invention, the operation control unit executes next according to the priority at that time. If the power supply status at that time is insufficient to execute a process with a high priority, priority is given until the remaining amount of power storage becomes a situation where a process with a high priority can be executed. It is possible to wait without executing other low-level processes and to execute a high-priority process preferentially.

実施の形態4.
これまで示した実施の形態1ないし実施の形態3では、無線通信装置の動作制御部6が許容動作情報26に従い、次の動作として要求されている無線通信動作のうち予め設定された優先度に応じて許容される順に実行するよう制御する場合について説明した。この実施の形態4では、無線通信装置が実行する動作を選択する際に蓄電部2での蓄電残量を考慮し、この蓄電残量から算出される処理継続時間の許容範囲で完了する動作を選択するものについて説明する。
Embodiment 4 FIG.
In the first to third embodiments shown so far, the operation control unit 6 of the wireless communication apparatus follows the allowable operation information 26 and sets a predetermined priority among the wireless communication operations requested as the next operation. A case has been described in which the control is performed in the allowable order. In the fourth embodiment, when selecting an operation to be performed by the wireless communication device, an operation that is completed within an allowable range of processing duration calculated from the remaining amount of electricity stored in consideration of the remaining amount of electricity stored in the electricity storage unit 2 is performed. What will be selected will be described.

少なくとも一対の無線通信装置から構成される無線通信システムについて、各無線通信装置の無線通信動作は、無線信号送信、無線信号受信、内部制御処理、待機中など個々の動作として分類されるが、その無線通信システムの種別によってこれら個々の動作で完結するものと、これらの動作の組合せを一連の処理シーケンスとして完結するものがある。例えば、ある無線通信装置Aから別の無線通信装置Bへ定期的に情報を送信し、その送達確認を必要としない無線通信システムの場合には、無線通信装置Aは無線信号送信のみで動作が完結し、無線通信装置Bは無線信号受信のみで動作が完結する。しかし、ある無線通信装置Aから別の無線通信装置Bへ情報を送信する際に、予め互いが無線通信可能な状態であることを確認した上で情報の送信処理を開始し、送達確認を完了した時点で動作が完結するようなシステムの場合には、処理シーケンスを完結するために複数の動作が必要となる。   Regarding a wireless communication system composed of at least a pair of wireless communication devices, the wireless communication operation of each wireless communication device is classified as an individual operation such as wireless signal transmission, wireless signal reception, internal control processing, standby, etc. Depending on the type of wireless communication system, there are ones that are completed by these individual operations, and ones that complete a combination of these operations as a series of processing sequences. For example, in the case of a wireless communication system that periodically transmits information from one wireless communication device A to another wireless communication device B and does not require confirmation of delivery, the wireless communication device A operates only by wireless signal transmission. As a result, the wireless communication apparatus B completes its operation only by receiving a wireless signal. However, when transmitting information from one wireless communication device A to another wireless communication device B, the information transmission process is started after confirming that each other is ready for wireless communication, and the delivery confirmation is completed. In the case of a system in which the operation is completed at that time, a plurality of operations are required to complete the processing sequence.

図7は、この発明の実施の形態4に係る無線通信システムの動作シーケンスの一例を示す図である。ここでは、複数の動作で処理シーケンスを完了するような無線通信システムの動作例を説明する。図において、無線通信装置31から無線通信装置32へ情報を送信する際には、送信要求送信41、許可応答受信42、データ送信43、送達確認受信44からなる一連の動作で処理シーケンスが完結する。この場合、データ送信43に相当する処理だけで完結する場合と比べて動作に必要な電力消費量は大きくなる。これに対応するため、給電出力22の電圧値、あるいは発電出力21と給電出力22の電圧値の組合せによって蓄電部2での蓄電残量を推定し、この蓄電残量から許容される処理継続時間を算出して、要求されている動作のうち一連の処理シーケンスの全てを完結することが可能でかつ優先度の高い順に実行する動作を選択する。   FIG. 7 is a diagram showing an example of an operation sequence of the wireless communication system according to the fourth embodiment of the present invention. Here, an operation example of the wireless communication system in which the processing sequence is completed with a plurality of operations will be described. In the figure, when information is transmitted from the wireless communication device 31 to the wireless communication device 32, the processing sequence is completed by a series of operations including a transmission request transmission 41, a permission response reception 42, a data transmission 43, and a delivery confirmation reception 44. . In this case, the power consumption required for the operation is larger than the case where the process is completed only by the processing corresponding to the data transmission 43. In order to cope with this, the remaining amount of electricity stored in the power storage unit 2 is estimated from the voltage value of the power supply output 22 or the combination of the voltage values of the power generation output 21 and the power supply output 22, and the processing continuation time allowed from this power storage amount Is calculated, and an operation that can be completed in a series of processing sequences among requested operations and that is executed in descending order of priority is selected.

ここでは、蓄電残量から算出される処理継続時間の許容範囲で一連の処理シーケンスとして完結できる動作を選択する場合について述べたが、許容する動作として処理シーケンスにおける無線通信の連続動作回数を制限するように動作を選択してもよいし、同じ動作の繰り返し回数を制限するように動作を選択するようにしてもよい。   Here, a case has been described in which an operation that can be completed as a series of processing sequences within the allowable range of the processing duration calculated from the remaining amount of power storage has been described, but the number of continuous wireless communication operations in the processing sequence is limited as an allowable operation. The operation may be selected as described above, or the operation may be selected so as to limit the number of repetitions of the same operation.

以上のように、この発明の実施の形態4に係る無線通信システムによれば、無線通信装置の蓄電部2での蓄電残量から許容される処理継続時間に対応して完結することが可能な動作を選択、あるいは、連続する動作の回数を制限するようにしているので、一連の処理シーケンスや連続動作の途中で蓄電量不足によって動作が停止してしまうことを防止できる。   As described above, according to the wireless communication system according to the fourth embodiment of the present invention, it can be completed corresponding to the processing continuation time allowed from the remaining amount of power stored in power storage unit 2 of the wireless communication device. Since the operation is selected or the number of continuous operations is limited, it is possible to prevent the operation from being stopped due to a shortage of the storage amount during a series of processing sequences or continuous operations.

これまで説明してきたように、この発明の無線通信装置は、周囲の環境に存在するエネルギーを利用して発電を行い、発電出力を出力する発電部と、発電部が出力した発電出力を蓄積するとともに、給電出力を出力する蓄電部と、蓄電部が出力した給電出力から無線通信装置内で使用する電圧を生成し、作動電力を供給する電圧調整部と、蓄電部が出力した給電出力の電圧を監視し、電源監視結果を生成する電源監視部と、動作状態情報から電源監視基準の電圧範囲を決定し、電源監視基準の電圧範囲と電源監視部が生成した電源監視結果とに基づいて無線通信に対して許容する動作内容を判定し、許容動作情報を生成する電源管理部と、無線状態情報から生成した動作状態情報を電源管理部に送出し、電源管理部が生成した許容動作情報に従い無線通信の動作内容を、要求される優先度に応じて決定し動作内容指示として指示する動作制御部と、電圧調整部から供給される作動電力で動作し、動作制御部から指示された動作内容指示に従い無線信号の送受信を行うとともに、無線状態情報を動作制御部に送出する無線通信部とを備えたので、電源管理部が無線通信部の設定情報に対応する電源監視基準を無線通信処理ごとに決定するとともに、その時点での電源監視結果と無線通信部の動作状態に応じて次に無線通信部に対して許容する動作内容を判定するようにしているので、動作電流による電圧降下を考慮して出力電圧監視で用いる電圧閾値を動的に設定するため、動作状態に応じて出力電圧が変動した場合でも、動作可否の判定精度が低下することを防止できる。また、その時の電力供給状況が、最大の電力消費となる動作には不十分な場合でも、要求される動作がその時点の供給電力で賄うことのできるものであればこれを実行することが可能となり、発電した電力の有効利用を図ることができる。   As described so far, the wireless communication device of the present invention generates power using the energy existing in the surrounding environment, and stores the power generation output output by the power generation unit and the power generation unit that outputs the power generation output In addition, a power storage unit that outputs a power supply output, a voltage adjustment unit that generates a voltage used in the wireless communication device from the power supply output output by the power storage unit, and supplies operating power, and a voltage of the power supply output output by the power storage unit A power monitoring unit that generates a power monitoring result, and determines a power monitoring reference voltage range from the operation state information, and wirelessly based on the power monitoring reference voltage range and the power monitoring result generated by the power monitoring unit. The power management unit that determines the operation content permitted for communication and generates the permissible operation information and the operation state information generated from the wireless state information are sent to the power management unit, and the permissible operation information generated by the power management unit The operation control unit that determines the operation content of the wireless communication according to the required priority and instructs it as the operation content instruction, and the operation that is operated by the operating power supplied from the voltage adjustment unit, and the operation that is instructed by the operation control unit A wireless communication unit that transmits and receives wireless signals according to the content instructions and transmits wireless state information to the operation control unit, so that the power management unit performs wireless communication processing on the power monitoring standard corresponding to the setting information of the wireless communication unit Since the operation content allowed for the wireless communication unit is determined next according to the power monitoring result and the operation state of the wireless communication unit at that time, the voltage drop due to the operating current is reduced. Since the voltage threshold value used in the output voltage monitoring is dynamically set in consideration, even when the output voltage fluctuates according to the operation state, it is possible to prevent the determination accuracy of the operation availability from being lowered. In addition, even if the power supply status at that time is insufficient for the operation that maximizes the power consumption, it can be executed if the required operation can be covered by the power supply at that time. Thus, the generated power can be effectively used.

また、この発明の無線通信装置によれば、電源管理部が無線送信処理、無線受信処理、内部制御処理のそれぞれに対して、次の動作として許容できる電圧範囲を規定するとともに、無線送信中、無線受信中、内部制御中のそれぞれの動作状態に対応する電圧範囲を規定する電源監視基準を決定するので、無線通信部の設定内容や回路種別に応じて無線通信部に対する設定変更や、モジュール交換などの方法によって無線通信部を異なる回路へ変更した場合にも対応が可能となる。   Further, according to the wireless communication device of the present invention, the power management unit defines the allowable voltage range as the next operation for each of the wireless transmission processing, the wireless reception processing, and the internal control processing, and during wireless transmission, Since the power supply monitoring standard that defines the voltage range corresponding to each operating state during wireless reception and internal control is determined, setting change for the wireless communication unit and module replacement according to the setting contents and circuit type of the wireless communication unit It is possible to cope with the case where the wireless communication unit is changed to a different circuit by such a method.

また、この発明の無線通信装置によれば、電源管理部が決定した電源監視基準に規定された電圧範囲に基づいて、蓄電部が出力した給電出力の電圧の電圧を監視して電源監視結果を電源監視部が生成するので、動作電流による電圧降下を考慮して出力電圧監視で用いる電圧閾値を動的に設定するため、動作状態に応じて出力電圧が変動した場合でも、動作可否の判定精度が低下することを防止できる。また、その時の電力供給状況が、最大の電力消費となる動作には不十分な場合でも、要求される動作がその時点の供給電力で賄うことのできるものであればこれを実行することが可能となり、発電した電力の有効利用を図ることができる。   Further, according to the wireless communication device of the present invention, based on the voltage range defined in the power monitoring standard determined by the power management unit, the voltage of the power supply output voltage output by the power storage unit is monitored and the power monitoring result is obtained. Generated by the power supply monitoring unit, the voltage threshold used for output voltage monitoring is dynamically set in consideration of the voltage drop due to the operating current, so even if the output voltage fluctuates depending on the operating state, the accuracy of determining whether to operate Can be prevented from decreasing. In addition, even if the power supply status at that time is insufficient for the operation that maximizes the power consumption, it can be executed if the required operation can be covered by the power supply at that time. Thus, the generated power can be effectively used.

また、この発明の無線通信装置によれば、発電部が出力した発電出力の電圧および蓄電部が出力した給電出力の電圧を監視して電源監視結果を電源監視部が生成し、電源管理部が動作状態情報から発電出力に対する電源監視基準の電圧範囲を決定し、電源監視部が生成した電源監視結果に対し、蓄電部への電力蓄積状況を予測し無線通信に対して許容する動作内容を決定するので、その時の発電状況を踏まえて実行すべき処理内容の選択を行うことにより、次に要求される無線通信動作をより確実に実行できるようにすることができる。   Further, according to the wireless communication device of the present invention, the power monitoring unit generates the power monitoring result by monitoring the voltage of the power generation output output by the power generation unit and the voltage of the power feeding output output by the power storage unit, and the power management unit Determine the power monitoring reference voltage range for the power generation output from the operating status information, and predict the power storage status in the power storage unit for the power monitoring result generated by the power monitoring unit and determine the operation content allowed for wireless communication Therefore, by selecting the processing content to be executed based on the power generation status at that time, it is possible to more reliably execute the next required wireless communication operation.

また、この発明の無線通信装置によれば、動作制御部が送信データの有無、タイマによる実行予約時間、処理待ち許容時間、優先データの該否等に応じて重み付けを行って算出した重み値の合計によって優先度を決定するので、その時の電力供給状況が優先度の高い処理を実行するには不十分な場合には、蓄電残量が優先度の高い処理を実行可能な状況となるまで優先度の低い他の処理を実行せずに待ち、優先度の高い処理を優先的に実行することが可能となる。   Further, according to the wireless communication device of the present invention, the operation control unit sets the weight value calculated by weighting according to the presence / absence of transmission data, the execution reservation time by the timer, the waiting time for processing, the priority data, etc. Since the priority is determined by the total, if the power supply status at that time is insufficient to execute a process with a high priority, priority is given until the remaining amount of stored electricity becomes a condition where a process with a high priority can be executed. It is possible to wait without executing other low-level processes and to execute a high-priority process preferentially.

また、この発明の無線通信装置によれば、動作制御部が実行する動作を選択する際に蓄電部における蓄電残量から算出される処理継続時間の許容範囲で完了する複数の動作を組み合わせた一連の処理シーケンスを優先度の高い順に選択するので、一連の処理シーケンスや連続動作の途中で蓄電量不足によって動作が停止してしまうことを防止できる。   Further, according to the wireless communication device of the present invention, when selecting an operation to be executed by the operation control unit, a series of combinations of a plurality of operations that are completed within the allowable range of the processing duration calculated from the remaining power storage amount in the power storage unit. Since the processing sequences are selected in descending order of priority, it is possible to prevent the operation from being stopped due to a shortage of the storage amount during a series of processing sequences or continuous operations.

1 発電部、2 蓄電部、3 電圧調整部、4、4a、4b 電源監視部、5、5a、5b 電源管理部、6 動作制御部、7 無線通信部、21 発電出力、22 給電出力、23 作動電力、24、24a、24b 電源監視結果、25 動作状態情報、26 許容動作情報、27 無線状態情報、28 動作内容指示、29 電源監視基準。   DESCRIPTION OF SYMBOLS 1 Power generation part, 2 Power storage part, 3 Voltage adjustment part, 4, 4a, 4b Power supply monitoring part, 5, 5a, 5b Power supply management part, 6 Operation control part, 7 Wireless communication part, 21 Power generation output, 22 Feeding output, 23 Operating power, 24, 24a, 24b Power monitoring results, 25 operating status information, 26 allowable operating information, 27 radio status information, 28 operating content instructions, 29 power monitoring criteria.

Claims (7)

発電した電力を電源として動作し、無線通信を行う無線通信装置であって、
周囲の環境に存在するエネルギーを利用して発電を行い、発電出力を出力する発電部と、
前記発電部が出力した前記発電出力を蓄積するとともに、給電出力を出力する蓄電部と、
前記蓄電部が出力した前記給電出力から無線通信装置内で使用する電圧を生成し、作動電力を供給する電圧調整部と、
前記蓄電部が出力した前記給電出力の電圧を監視し、電源監視結果を生成する電源監視部と、
動作状態情報から電源監視基準の電圧範囲を決定し、前記電源監視基準の電圧範囲と前記電源監視部が生成した前記電源監視結果とに基づいて無線通信に対して許容する動作内容を判定し、許容動作情報を生成する電源管理部と、
無線状態情報から生成した前記動作状態情報を前記電源管理部に送出し、前記電源管理部が生成した前記許容動作情報に従い無線通信の動作内容を、要求される優先度に応じて決定し動作内容指示として指示する動作制御部と、
前記電圧調整部から供給される前記作動電力で動作し、前記動作制御部から指示された前記動作内容指示に従い無線信号の送受信を行うとともに、前記無線状態情報を前記動作制御部に送出する無線通信部と
を備えた無線通信装置。
A wireless communication device that operates using generated power as a power source and performs wireless communication,
A power generation unit that generates power using energy existing in the surrounding environment and outputs power generation output,
A power storage unit that accumulates the power generation output output by the power generation unit and outputs a power supply output; and
A voltage adjustment unit that generates a voltage to be used in the wireless communication device from the power supply output output by the power storage unit, and supplies operating power;
A power monitoring unit that monitors a voltage of the power supply output output by the power storage unit and generates a power monitoring result;
Determining the power monitoring reference voltage range from the operation state information, determining the operation content allowed for wireless communication based on the power monitoring reference voltage range and the power monitoring result generated by the power monitoring unit; A power management unit that generates allowable operation information;
The operation state information generated from the wireless state information is sent to the power management unit, and the operation content of the wireless communication is determined according to the requested priority according to the allowable operation information generated by the power management unit. An operation control unit for instructing as an instruction;
Wireless communication that operates with the operating power supplied from the voltage adjustment unit, transmits and receives a radio signal according to the operation content instruction instructed by the operation control unit, and transmits the radio state information to the operation control unit And a wireless communication device.
前記電源管理部は、
無線送信処理、無線受信処理、内部制御処理のそれぞれに対して、次の動作として許容できる電圧範囲を規定する前記電源監視基準を決定する
請求項1に記載の無線通信装置。
The power management unit
The wireless communication apparatus according to claim 1, wherein the power supply monitoring reference that defines an allowable voltage range as a next operation is determined for each of wireless transmission processing, wireless reception processing, and internal control processing.
前記電源管理部は、
無線送信中、無線受信中、内部制御中のそれぞれの動作状態に対応する電圧範囲を規定する前記電源監視基準を決定する
請求項1または請求項2に記載の無線通信装置。
The power management unit
The wireless communication apparatus according to claim 1, wherein the power supply monitoring reference that defines a voltage range corresponding to each operation state during wireless transmission, wireless reception, and internal control is determined.
前記電源監視部は、
前記電源管理部が決定した前記電源監視基準に規定された電圧範囲に基づいて、前記蓄電部が出力した前記給電出力の電圧の電圧を監視して前記電源監視結果を生成する
請求項1ないし請求項3のいずれか1項に記載の無線通信装置。
The power monitoring unit
The power supply monitoring result is generated by monitoring the voltage of the power supply output voltage output by the power storage unit based on a voltage range defined by the power supply monitoring standard determined by the power supply management unit. Item 4. The wireless communication device according to any one of item 3 above.
前記電源監視部は、
前記発電部が出力した前記発電出力の電圧および前記蓄電部が出力した前記給電出力の電圧を監視して前記電源監視結果を生成し、
前記電源管理部は、
前記動作状態情報から前記発電出力に対する電源監視基準の電圧範囲を決定し、前記電源監視部が生成した前記電源監視結果に対し、前記蓄電部への電力蓄積状況を予測し無線通信に対して許容する動作内容を決定する
請求項1ないし請求項4のいずれか1項に記載の無線通信装置。
The power monitoring unit
Monitor the voltage of the power generation output output by the power generation unit and the voltage of the power supply output output by the power storage unit to generate the power monitoring result,
The power management unit
The power monitoring reference voltage range for the power generation output is determined from the operation state information, and the power monitoring result generated by the power monitoring unit is used to predict the power storage status in the power storage unit and allow wireless communication The wireless communication apparatus according to any one of claims 1 to 4, wherein an operation content to be determined is determined.
前記動作制御部は、
送信データの有無、タイマによる実行予約時間、処理待ち許容時間、優先データの該否に応じて重み付けを行って算出した重み値の合計によって前記優先度を決定する
請求項1ないし請求項5のいずれか1項に記載の無線通信装置。
The operation controller is
6. The priority is determined by the sum of weight values calculated by weighting according to presence / absence of transmission data, execution reservation time by a timer, allowable waiting time for processing, and priority data. The wireless communication device according to claim 1.
前記動作制御部は、
実行する動作を選択する際に前記蓄電部における蓄電残量から算出される処理継続時間の許容範囲で完了する複数の動作を組み合わせた一連の処理シーケンスを優先度の高い順に選択する
請求項1ないし請求項6のいずれか1項に記載の無線通信装置。
The operation controller is
When selecting an operation to be performed, a series of processing sequences combining a plurality of operations completed within an allowable range of processing continuation time calculated from the remaining amount of power stored in the power storage unit is selected in descending order of priority. The wireless communication apparatus according to claim 6.
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