JP6706555B2 - Data transceiver - Google Patents

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JP6706555B2
JP6706555B2 JP2016135303A JP2016135303A JP6706555B2 JP 6706555 B2 JP6706555 B2 JP 6706555B2 JP 2016135303 A JP2016135303 A JP 2016135303A JP 2016135303 A JP2016135303 A JP 2016135303A JP 6706555 B2 JP6706555 B2 JP 6706555B2
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JP2018005784A (en
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秀樹 赤羽
秀樹 赤羽
光男 坪木
光男 坪木
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Koa Corp
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本発明は、データ送受信装置に係り、電力供給源に接続した体外の装置（体外機）とセンサに接続した体内の装置（体内機）とが、電力の送受信とセンサ出力の送受信を行うデータ送受信装置に関する。 The present invention relates to a data transmission/reception device, in which a device (external unit) outside the body connected to a power supply source and a device (internal unit) inside the body connected to a sensor perform transmission/reception of electric power and transmission/reception of sensor output. Regarding the device.

従来から、電力供給源が人間の体外にあり、人間の体外の一次コイルに接続し、二次コイルが人間の体内にあり、二次コイルに一次コイルから電力を送信し、人間の体内にある医療装置に電力を供給するエネルギーの伝達システムが知られている（例えば特許文献１参照）。 Traditionally, the power supply source is outside the human body, connected to the primary coil outside the human body, the secondary coil is inside the human body, the secondary coil sends power from the primary coil, inside the human body An energy transmission system for supplying electric power to a medical device is known (see, for example, Patent Document 1).

上記伝達システムでは、電力が体外の一次コイルから体内の二次コイルに交流磁場の形態で伝送されることが記載されている。従って、係る装置では、体内に電池等の電力供給源を配置することなく、体外の電力供給源からの電力で体内の医療装置を動作させることができる。 The above-mentioned transmission system describes that power is transmitted from an external primary coil to an internal secondary coil in the form of an alternating magnetic field. Therefore, in such a device, the medical device inside the body can be operated by the electric power from the power supply source outside the body without disposing the power supply source such as the battery inside the body.

特開２００６−６９５０号公報JP, 2006-6950, A

ところで、人間の体内にセンサを配置し、そこから生体情報を取得したい場合がある。係る場合に、上記の電力の伝達システムによれば、体外の電力供給源からの電力の供給で生体センサに電源を供給し、生体センサを動作させることは可能である。 By the way, there are cases where a sensor is placed inside the human body and biometric information is to be acquired from the sensor. In such a case, according to the power transmission system described above, it is possible to operate the biosensor by supplying power to the biosensor with the power supplied from the power supply source outside the body.

しかしながら、センサが取得した生体情報を体外の表示装置に送るには、別途のデータ送受信装置が必要であるか、或いは上記の送受信装置を利用するとしても、電力の送受信とセンサ出力の送受信の２つの動作制御を行う必要があり、煩雑な制御システムが必要となる。 However, in order to send the biometric information acquired by the sensor to the display device outside the body, a separate data transmission/reception device is required, or even if the above transmission/reception device is used, there are two types of power transmission/reception and sensor output transmission/reception. It is necessary to perform one operation control and a complicated control system is required.

本発明は、上述の事情に基づいてなされたもので、小型コンパクト化した簡易なシステムで、体外から体内に電力を供給しつつ、体内から体外にセンサ出力を送信できるデータ送受信装置を提供することを目的とする。 The present invention has been made in view of the above circumstances, and provides a data transmission/reception device capable of transmitting a sensor output from the inside of the body to the outside of the body while supplying electric power from the outside to the inside of the body with a simple system that is small and compact. With the goal.

本発明のデータ送受信装置は、電力供給源と、電力供給源によって供給された電力を送信する電力送信回路と、電力送信回路から送信された電力を受信する電力受信回路と、電力受信回路で受信した電力で駆動されるセンサと、センサの出力を送信する信号送信回路と、信号送信回路から送信されたセンサの出力を受信する信号受信回路を備え、前記電力受信回路は、時定数の小さい第１の整流回路と、時定数の大きい第２の整流回路を含み、前記電力の送信と前記センサの出力の送信は同じ伝送路で行うことを特徴とする。 A data transmitter/receiver of the present invention includes a power supply source, a power transmission circuit that transmits the power supplied by the power supply source, a power reception circuit that receives the power transmitted from the power transmission circuit, and a power reception circuit that receives the power. A sensor driven by the electric power, a signal transmission circuit for transmitting the output of the sensor, and a signal reception circuit for receiving the output of the sensor transmitted from the signal transmission circuit, wherein the power reception circuit has a small time constant. The first rectifier circuit and the second rectifier circuit having a large time constant are included, and the power transmission and the sensor output transmission are performed in the same transmission path.

本発明によれば、体外機と体内機のそれぞれの回路に決められた動作をさせることにより、体外機が体内機に電力を供給しつつ、体内機が取得したセンサ情報を体外機に送信することができる。すなわち、体外機と体内機における電力の送受信とセンサ出力の送受信を１つの伝送路で切り換えて使用することができる。 According to the present invention, by causing the external unit and the internal unit to perform predetermined operations, the external unit supplies power to the internal unit while transmitting the sensor information acquired by the internal unit to the external unit. be able to. That is, the transmission and reception of electric power and the transmission and reception of the sensor output between the extracorporeal unit and the internal unit can be switched and used in one transmission path.

従って、体内機の電源が常に充電されている状態を維持する必要がなくなり、体内機の小型化、生体情報を検出するセンサの長寿命化等が可能となる。そして、体外機は体内機の動作状態を検出する必要がなく、小型コンパクト化した簡易なシステムで、体内の生体情報の検出が可能となる。 Therefore, it is not necessary to keep the power source of the internal unit constantly charged, and it is possible to reduce the size of the internal unit and extend the life of the sensor for detecting biometric information. The extracorporeal unit does not need to detect the operating state of the internal unit, and can detect biometric information inside the body with a simple and compact system.

本発明の一実施例のデータ送受信装置のブロック図である。It is a block diagram of the data transmission/reception apparatus of one Example of this invention. 上記データ送受信装置の回路図である。It is a circuit diagram of the said data transmission/reception apparatus. 上記データ送受信装置における体外機と体内機の動作のフローチャートである。7 is a flowchart of the operation of the external unit and the internal unit in the data transmitting/receiving device. 上記体外機と体内機の動作のタイムチャートである。It is a time chart of operation of the above-mentioned external unit and internal unit.

以下、本発明の実施形態について、図１乃至図４を参照して説明する。なお、各図中、同一または相当する部材または要素には、同一の符号を付して説明する。 Embodiments of the present invention will be described below with reference to FIGS. 1 to 4. In the drawings, the same or corresponding members or elements will be designated by the same reference numerals.

図１は本発明の一実施例のデータ送受信装置の概念を示し、図２はその回路例を示す。電力供給源１１は例えば直流電源であり、制御装置２１，２４とセンサ１６を動作させる電力を供給する。電力送信回路１２は電力供給源１１によって供給された直流電力を無線伝送に適した周波数（例えば８５ｋＨｚ等)の交流電力に変換して送出する回路である。 FIG. 1 shows the concept of a data transmitting/receiving apparatus according to an embodiment of the present invention, and FIG. 2 shows an example of its circuit. The power supply source 11 is, for example, a DC power supply, and supplies power for operating the control devices 21 and 24 and the sensor 16. The power transmission circuit 12 is a circuit that converts the DC power supplied from the power supply source 11 into AC power having a frequency (for example, 85 kHz) suitable for wireless transmission and sends the AC power.

この変換はマイクロコンピューター等の制御装置２１によって行われる。そして、半導体スイッチ等のスイッチ２２を送信（Ｏｕｔ）側に制御装置２１により切換ることで、人間の体外に配置された送受波器１３から人間の体内に配置された送受波器１４に電力が無線伝送される。送受波器１３，１４としては、磁界結合では近接して配置された一対のコイル、電界結合では近接して配置された一対の金属板が用いられる。 This conversion is performed by the control device 21 such as a microcomputer. Then, by switching the switch 22 such as a semiconductor switch to the transmission (Out) side by the control device 21, electric power is transmitted from the transducer 13 arranged outside the human body to the transducer 14 arranged inside the human body. It is transmitted wirelessly. As the wave transmitters/receivers 13 and 14, a pair of coils arranged close to each other in magnetic field coupling and a pair of metal plates arranged close to each other in electric field coupling are used.

電力受信回路１５は電力送信回路１２から送信された交流電力を受信して、整流して直流電力に変換して保持する回路である。送受波器１４で受信した交流電力はスイッチ２３が受信（Ｉｎ）側に制御装置２４で切換られている場合、時定数の小さい第１の整流回路２５と、時定数の大きい第２の整流回路２６に入る。 The power reception circuit 15 is a circuit that receives the AC power transmitted from the power transmission circuit 12, rectifies it, converts it to DC power, and holds the DC power. When the switch 23 is switched to the receiving (In) side by the control device 24, the AC power received by the transmitter/receiver 14 is a first rectifier circuit 25 having a small time constant and a second rectifier circuit having a large time constant. Enter 26.

整流回路２５は時定数が小さい（キャパシターの容量が小さい）ため、整流後の出力は受信交流波形の半波波形が得られる。これにより、制御装置２４の給電波形検出端子では、給電波形「有り」を検出できる。図４に示すように、体外の電力送信回路１２からは所定時間（Ｔａ）の交流電力送信と、その後の所定時間（Ｔｂ）の電力送信停止が繰りかえされる。「所定時間（Ｔｂ）の電力送信停止」では、給電波形検出端子において「給電波形無し」が検出される。後述するように、この時間（Ｔｂ）に、センサ出力信号の送信が行なわれる。 Since the rectifier circuit 25 has a small time constant (capacity of the capacitor is small), the rectified output is a half-wave waveform of the received AC waveform. As a result, the power supply waveform detection terminal of the control device 24 can detect the presence of the power supply waveform. As shown in FIG. 4, the power transmission circuit 12 outside the body repeats AC power transmission for a predetermined time (Ta) and then stops power transmission for a predetermined time (Tb). In the "power transmission stop for a predetermined time (Tb)", "no power supply waveform" is detected at the power supply waveform detection terminal. As will be described later, the sensor output signal is transmitted at this time (Tb).

整流回路２６は時定数が大きい（キャパシターの容量が大きい）ため、直流に近い整流波形が得られ、直流電力が蓄積される。整流後の直流電力はＤＣ／ＤＣコンバーター２７により、制御装置２４の電源電圧Ｖccおよび生体センサ１６の動作電圧に昇圧される。図示の例では、ＤＣ／ＤＣコンバーター２７は一段であるが、制御装置２４の電源電圧Ｖccと生体センサ１６の動作電圧が異なる場合には、ＤＣ／ＤＣコンバーターを複数段設けるようにしてもよい。 Since the rectifier circuit 26 has a large time constant (the capacitance of the capacitor is large), a rectified waveform close to DC is obtained and DC power is stored. The rectified DC power is boosted by the DC/DC converter 27 to the power supply voltage Vcc of the control device 24 and the operating voltage of the biosensor 16. In the illustrated example, the DC/DC converter 27 has one stage, but when the power supply voltage Vcc of the control device 24 and the operating voltage of the biosensor 16 are different, a plurality of DC/DC converters may be provided.

整流回路２６に、大容量のキャパシターを配置することで、大きな直流電力が保持され、電力送信回路１２からの「所定時間送信停止（給電波形無し）」区間でも、安定した直流電力の供給が制御装置２４と生体センサ１６に対して可能である。これにより、生体センサ１６が駆動され、生体情報を取得して出力する。そして、生体センサ１６の出力を送信する制御装置２４における信号送信回路１７の動作が可能となる。 By arranging a large-capacity capacitor in the rectifier circuit 26, a large amount of direct current power is held, and stable direct current power supply is controlled even in the "stop transmission for a predetermined time (no power supply waveform)" section from the power transmission circuit 12. This is possible for device 24 and biosensor 16. As a result, the biometric sensor 16 is driven to acquire and output biometric information. Then, the operation of the signal transmission circuit 17 in the control device 24 that transmits the output of the biometric sensor 16 becomes possible.

信号送信回路１７は供給された直流電力を無線伝送に適した周波数（例えば８５ｋＨｚ等)の交流電力に変換して送出する回路である。そして、生体センサ１６の出力はこの交流電力に例えば振幅変調を施すことで重畳される。信号送信回路１７の信号送信期間は電力送信回路１２の交流電力送信停止期間である。この期間は制御装置２１がスイッチ２２を受信（Ｉｎ）側に切換え、制御装置２１は信号受信回路１８として動作する。 The signal transmission circuit 17 is a circuit that converts the supplied DC power into AC power having a frequency (for example, 85 kHz) suitable for wireless transmission and sends the AC power. Then, the output of the biometric sensor 16 is superimposed on this AC power by, for example, performing amplitude modulation. The signal transmission period of the signal transmission circuit 17 is an AC power transmission stop period of the power transmission circuit 12. During this period, the control device 21 switches the switch 22 to the receiving (In) side, and the control device 21 operates as the signal receiving circuit 18.

センサ１６はその電源が供給されている限り、検出した生体情報を出力する。しかし、信号送信回路１７の信号送信期間は上述したように、電力送信回路１２の交流電力送信停止期間（スイッチ２２が受信（Ｉｎ）側）である。このため、制御装置２４には、電力送信回路１２の交流電力送信期間（図４における時間（Ｔａ））と送信停止期間（図４における時間（Ｔｂ））の合計期間のセンサ出力を蓄積する記憶回路を備え、その合計期間のセンサ出力を信号送信回路１７の信号送信回路出力期間（図４における時間（Ｔｂ））に圧縮して送信する。 The sensor 16 outputs the detected biometric information as long as the power is supplied. However, as described above, the signal transmission period of the signal transmission circuit 17 is the AC power transmission suspension period of the power transmission circuit 12 (the switch 22 is on the reception (In) side). Therefore, the control device 24 stores the sensor output of the power transmission circuit 12 during the total period of the AC power transmission period (time (Ta) in FIG. 4) and the transmission stop period (time (Tb) in FIG. 4). A circuit is provided, and the sensor output of the total period is compressed during the signal transmission circuit output period of the signal transmission circuit 17 (time (Tb) in FIG. 4) and transmitted.

実際のところ、人の体形（太っている、痩せている）によって同じ時間Ｔａであっても、給電できるエネルギー量が変わってくるため、体内機は整流回路２６の電圧値をみて、時間Ｔｂを決めてセンサ出力の信号を送信することになる。例えば、時間Ｔｂが短い時には、給電量が少ないと判断して体外機は、時間Ｔａを長くするなど、人の体形に合わせて、時間ＴａおよびＴｂの時間を制御することができる。信号送信にあたっては、時間Ｔａ＋Ｔｂ間のセンサ出力を次の時間Ｔｂに全て送信する必要は必ずしもなく、体内機に蓄積されたデータを順次時間Ｔｂ間にて送信しても良い。 As a matter of fact, the amount of energy that can be supplied changes depending on the body shape of the person (thick or thin) even if the time Ta is the same. Therefore, the internal unit checks the voltage value of the rectifier circuit 26 to determine the time Tb. The sensor output signal is decided and transmitted. For example, when the time Tb is short, it is determined that the power supply amount is small, and the extracorporeal unit can control the times Ta and Tb according to the body shape of the person such as lengthening the time Ta. In transmitting the signal, it is not always necessary to transmit all sensor outputs during the time Ta+Tb at the next time Tb, and the data accumulated in the internal unit may be sequentially transmitted during the time Tb.

センサ出力の信号送信期間（電力送信回路１２の電力送信停止期間）には、制御装置２４によりスイッチ２３が送信（Ｏｕｔ）側に切換られる。この期間は電力送信回路１２の電力送信停止期間であるので、制御装置２４は前述したように、時定数の小さい整流回路２５の「給電波形無し」が検出されることから、センサ出力の信号送出へのスイッチ２３のＯｕｔ側への切換が可能である。 During the signal output period of the sensor output (power transmission stop period of the power transmission circuit 12), the controller 24 switches the switch 23 to the transmission (Out) side. Since this period is the power transmission stop period of the power transmission circuit 12, the control device 24 detects the “no power supply waveform” of the rectifier circuit 25 having a small time constant, as described above, and thus the signal output of the sensor output is transmitted. It is possible to switch the switch 23 to the Out side.

これにより、信号送信回路１７から送出されたセンサ出力信号は、送受波器１４，１３間で無線伝送され、スイッチ２２が受信（Ｉｎ）側に設定されているため、信号受信回路１８で受信される。すなわち、制御装置２１の記憶回路に、電力送信回路１２の交流電力送信期間と送信停止期間の合計期間のセンサ出力が、電力送信停止期間に圧縮された振幅変調信号として受信される。 As a result, the sensor output signal transmitted from the signal transmission circuit 17 is wirelessly transmitted between the wave transmitters/receivers 14 and 13, and the switch 22 is set to the reception (In) side, and thus is received by the signal reception circuit 18. It That is, the storage circuit of the control device 21 receives the sensor output of the power transmission circuit 12 in the total period of the AC power transmission period and the transmission stop period as an amplitude modulation signal compressed in the power transmission stop period.

この信号を制御装置２１に設けた復調回路により復調すると、電力送信回路１２の交流電力送信期間と送信停止期間の合計期間（Ｔａ＋Ｔｂ）のセンサ出力が得られる。そして、信号表示装置２８に過去の信号に加えて表示することで、連続したセンサ出力情報が表示される。 When this signal is demodulated by the demodulation circuit provided in the control device 21, the sensor output of the total period (Ta+Tb) of the AC power transmission period and the transmission stop period of the power transmission circuit 12 is obtained. Then, by displaying in addition to past signals on the signal display device 28, continuous sensor output information is displayed.

従って、このデータ送受信装置によれば、体外に電力供給源１１および電力送信回路１２と信号受信回路１８を備えた制御装置２１と、体内に時定数が小大２つの整流回路を有する電力受信回路１５と信号送信回路１７を備えた制御装置２４と生体センサ１６を配置し、電力の送信とセンサ１６の出力の送信は同じ伝送路（スイッチ２２，２３および送受波器１３，１４）を使用することで、ハードウェアの構成を簡素なものとすることができる。 Therefore, according to this data transmission/reception device, the control device 21 having the power supply source 11 and the power transmission circuit 12 and the signal reception circuit 18 outside the body, and the power reception circuit having two rectification circuits with small and large time constants inside the body. 15 and a control device 24 having a signal transmission circuit 17 and a biosensor 16 are arranged, and the same transmission path (switches 22 and 23 and transducers 13 and 14) is used for transmission of electric power and transmission of output of the sensor 16. As a result, the hardware configuration can be simplified.

図３はこのデータ送受信装置の動作のフローチャートを示し、図４はそのタイムチャートを示す。体外機は、スイッチ２２を送信（Ｏｕｔ）側に切換、電力送信回路１２より所定時間（Ｔａ）電力を送信する。そして、所定時間（Ｔａ）が経過すると、スイッチ２２を受信（Ｉｎ）側に切換、所定時間（Ｔｂ）電力の送信を停止する。 FIG. 3 shows a flowchart of the operation of this data transmitting/receiving apparatus, and FIG. 4 shows its time chart. The extracorporeal unit switches the switch 22 to the transmission (Out) side, and transmits power from the power transmission circuit 12 for a predetermined time (Ta). Then, when the predetermined time (Ta) elapses, the switch 22 is switched to the receiving (In) side, and the transmission of the power for the predetermined time (Tb) is stopped.

この期間は、スイッチ２２を受信（Ｉｎ）側に切換るので、この時間にセンサ出力信号が来れば、信号受信回路１８で受信する。そして、所定時間（Ｔｂ）が経過すると、スイッチ２２を送信（Ｏｕｔ）側に切換える。体外機はこの動作を繰り返す。ここで、所定時間（Ｔａ）および所定時間（Ｔｂ）は一例として数秒である。 During this period, the switch 22 is switched to the receiving (In) side, so that if the sensor output signal comes at this time, the signal receiving circuit 18 receives it. Then, when the predetermined time (Tb) has elapsed, the switch 22 is switched to the transmission (Out) side. The extracorporeal unit repeats this operation. Here, the predetermined time (Ta) and the predetermined time (Tb) are, for example, several seconds.

体内機は電池等の電源を有さず、使用する電力はすべて体外機から送信された電力に依存する。このため、このデータ送受信装置を暫く使用していない場合は、整流回路２６のキャパシターの充電電圧はゼロであり、体内機Ｖcc（電源電圧）はゼロである。 The internal unit does not have a power source such as a battery, and all the electric power used depends on the electric power transmitted from the external unit. Therefore, when the data transmitting/receiving device is not used for a while, the charging voltage of the capacitor of the rectifying circuit 26 is zero and the internal unit Vcc (power supply voltage) is zero.

図４に示すように、体外機からの電力送信が時刻Ｔ１で始まると、体内機Ｖcc（電源電圧）は徐々に上昇する。体内機Ｖcc（電源電圧）が制御装置２４およびセンサ１６の動作電圧に満たないと、これらは動作しない。時刻Ｔ２において、制御装置２４およびセンサ１６の動作電圧に到達すると、これらは動作を開始する。 As shown in FIG. 4, when power transmission from the external unit starts at time T1, the internal unit Vcc (power supply voltage) gradually rises. If the internal unit Vcc (power supply voltage) does not reach the operating voltage of the control device 24 and the sensor 16, these do not operate. When the operating voltages of the controller 24 and the sensor 16 are reached at time T2, they start operating.

従って、時刻Ｔ２から始まる所定時間（Ｔｂ）において、スイッチ２２が受信（Ｉｎ）側に切換られ、電力送信回路１２よりの電力送信が停止する。すると、小さな時定数の整流回路２５において、「給電波形無し」が検出される。この検出により、スイッチ２３が受信（Ｉｎ）側から送信（Ｏｕｔ）側に所定時間（Ｔｂ）切換られる。そして、所定時間（Ｔｂ）が経過するとスイッチ２３が受信（Ｉｎ）側に切換られる。 Therefore, at a predetermined time (Tb) starting from time T2, the switch 22 is switched to the receiving (In) side, and power transmission from the power transmission circuit 12 is stopped. Then, "no power supply waveform" is detected in the rectifier circuit 25 having a small time constant. By this detection, the switch 23 is switched from the receiving (In) side to the transmitting (Out) side for a predetermined time (Tb). Then, when the predetermined time (Tb) has elapsed, the switch 23 is switched to the receiving (In) side.

これにより、センサ１６の出力は、制御装置２４の信号送信回路１７により無線伝送に好適な周波数の交流波形に振幅変調で重畳して、スイッチ２３、送受波器１４，１３、スイッチ２２を経由して、制御装置２１の信号受信回路１８に入力される。そして、そこで信号復調され、センサ１６の出力波形が信号表示装置２８で表示される。 As a result, the output of the sensor 16 is superimposed on the AC waveform of the frequency suitable for wireless transmission by amplitude modulation by the signal transmission circuit 17 of the control device 24, and passes through the switch 23, the transducers 13 and 13, and the switch 22. And is input to the signal receiving circuit 18 of the control device 21. Then, the signal is demodulated there, and the output waveform of the sensor 16 is displayed on the signal display device 28.

所定時間（Ｔｂ）が経過すると、スイッチ２２は送信（Ｏｕｔ）側に切換られ、スイッチ２３は受信（Ｉｎ）側に切換られるので、電力送信回路１２から交流電力が送信され、信号送信回路１７からのセンサ出力の送信は停止される。センサ１６の出力は制御装置２４の記憶回路に蓄積され、圧縮されて、次の所定時間（Ｔａ）にまとめて送信される。 When the predetermined time (Tb) has elapsed, the switch 22 is switched to the transmission (Out) side and the switch 23 is switched to the reception (In) side, so that the AC power is transmitted from the power transmission circuit 12 and the signal transmission circuit 17 is transmitted. The transmission of the sensor output of is stopped. The output of the sensor 16 is accumulated in the memory circuit of the control device 24, compressed, and transmitted collectively in the next predetermined time (Ta).

図示しないが、このデータ送受信装置の動作終了は、電力送信回路１２からの電力の送信を停止することにより行える。電力の送信停止により制御装置２４およびセンサ１６は動作不能となり、データ送受信装置の動作が終了する。次回の使用にあたり、スイッチ２２は送信（Ｏｕｔ）側に、スイッチ２３は受信（Ｉｎ）側に初期設定する。 Although not shown, the operation of the data transmission/reception device can be terminated by stopping the transmission of power from the power transmission circuit 12. The control device 24 and the sensor 16 become inoperable due to the stop of power transmission, and the operation of the data transmitting/receiving device ends. For the next use, the switch 22 is initialized to the transmission (Out) side, and the switch 23 is initialized to the reception (In) side.

なお、図４に示す実施例では、所定時間（Ｔａ）と所定時間（Ｔｂ）を同一に記載しているが、センサおよび伝送路の状態等に基づき、適宜変更が可能である。 In addition, in the embodiment shown in FIG. 4, the predetermined time (Ta) and the predetermined time (Tb) are described as the same, but they can be appropriately changed based on the state of the sensor and the transmission path.

これまで本発明の一実施形態について説明したが、本発明は上述の実施形態に限定されず、その技術的思想の範囲内において種々異なる形態にて実施されてよいことは言うまでもない。 Although one embodiment of the present invention has been described so far, it is needless to say that the present invention is not limited to the above embodiment and may be implemented in various different forms within the scope of the technical idea thereof.

本発明は、体外の装置（体外機）と体内の装置（体内機）とで、データ送受信を行う装置に好適に利用可能である。 INDUSTRIAL APPLICABILITY The present invention can be suitably used for a device that transmits and receives data between an external device (external device) and an internal device (internal device).

Claims (5)

電力供給源と、
前記電力供給源によって供給された電力を送信する電力送信回路と、
前記電力送信回路から送信された電力を受信する電力受信回路と、
前記電力受信回路で受信した電力で駆動されるセンサと、
前記センサの出力を送信する信号送信回路と、
前記信号送信回路から送信された前記センサの出力を受信する信号受信回路を備え、
前記電力受信回路は、時定数の小さい第１の整流回路と、時定数の大きい第２の整流回路を含み、前記電力の送信と前記センサの出力の送信は同じ伝送路で行うことを特徴とするデータ送受信装置。 A power source,
A power transmission circuit for transmitting the power supplied by the power supply source;
A power receiving circuit for receiving the power transmitted from the power transmitting circuit,
A sensor driven by the power received by the power receiving circuit,
A signal transmission circuit for transmitting the output of the sensor,
A signal receiving circuit for receiving the output of the sensor transmitted from the signal transmitting circuit,
The power receiving circuit includes a first rectifying circuit having a small time constant and a second rectifying circuit having a large time constant, and the power transmission and the sensor output transmission are performed through the same transmission path. Data transmitter and receiver. 前記電力供給源と前記電力送信回路と前記信号受信回路を含む体外機と、前記電力受信回路と前記センサと前記信号送信回路を含む体内機が、それぞれ制御装置とスイッチを備え、前記電力の送信と前記センサの出力の送信を切換ることを特徴とする請求項１に記載のデータ送受信装置。 An external unit including the power supply source, the power transmitting circuit, and the signal receiving circuit, and an internal unit including the power receiving circuit, the sensor, and the signal transmitting circuit each include a control device and a switch, and transmit the power. 2. The data transmission/reception device according to claim 1, wherein transmission of the output of the sensor is switched. 前記センサの出力は、前記電力を送信していない時間に、送信されることを特徴とする請求項１に記載のデータ送受信装置。 The data transmitter/receiver according to claim 1, wherein the output of the sensor is transmitted during a time when the power is not transmitted. 前記センサは、体内の生体情報を取得することを特徴とする請求項１に記載のデータ送受信装置。 The data transmission/reception device according to claim 1, wherein the sensor acquires biological information in the body. 前記体外機はそのスイッチを、所定時間電力の送信側に切換、引き続き所定時間信号の受信側に切換、そのサイクルを繰り返し、
前記体内機は、前記第１の整流回路で給電波形の有無を検出し、前記第２の整流回路で前記センサと前記制御装置を駆動可能な直流電力を充電し、
前記給電波形無しが検出された時に、前記体内機のスイッチを前記センサの出力の送信側に切換、所定時間経過後に戻すことを特徴とする請求項２に記載のデータ送受信装置。 The external unit switches its switch to a power transmitting side for a predetermined time, then switches to a signal receiving side for a predetermined time, and repeats the cycle,
The internal unit detects the presence or absence of a power supply waveform in the first rectifier circuit, and charges the sensor and the control device with direct current power that can drive the sensor in the second rectifier circuit,
The data transmitting/receiving apparatus according to claim 2, wherein when the absence of the power supply waveform is detected, the switch of the internal unit is switched to the output side of the output of the sensor and is returned after a predetermined time has elapsed.
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