JPH0576501A - Surveillance system and portable electronic device used in the surveillance system - Google Patents

Abstract

(57) [Abstract] [Purpose] For a monitoring system and a monitoring system capable of measuring biological information such as cardiac radio waves, heart rate, and blood pressure during various exercises and simultaneously monitoring the biological information of multiple subjects during exercise. A portable electronic device used is provided. [Structure] A plurality of shirts 1 are worn by a plurality of examinees, respectively, and a subject's biological signal (electrocardiographic waveform) is detected by electrodes, and this biological signal is transmitted from a coil 2 by electromagnetic induction. The plurality of wristwatches 3 are attached respectively to the arm of the subject wearing the shirt 1, the biometric signal transmitted from the coil 2 is received by the coil 4, and pulse data and identification code based on the biometric signal are wirelessly transmitted from the antenna 5. To do. The receiver 6 receives the pulse data and the identification code transmitted from each wristwatch 3 by the antenna 7 and sends them to the monitoring device 8. The monitoring device 8 displays the sent pulse data for each identification code.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a monitoring system capable of monitoring biological information such as cardiac radio waves, heart rate, blood pressure of a subject such as a patient, and a portable electronic device used in the monitoring system.

[0002]

2. Description of the Related Art In rehabilitation and exercise therapy for patients, it is necessary to monitor the heartbeat (pulse) and blood pressure during exercise in order to effectively and safely perform exercise. The same applies to sports athletes, to promote health, and to exercise for the purpose of fitness. 2. Description of the Related Art Conventionally, an ergometer has been known that is capable of controlling the exercise load of a subject by optically monitoring the change in blood flow in the ear lobe and monitoring the pulse during “bicycle walking” exercise.

[0003]

However, the ergometer has a drawback that the type of exercise is limited to "bicycle riding". Further, in other various exercises that do not use an ergometer, there is a disadvantage that a third party such as a doctor or a trainer cannot confirm the heartbeat, blood pressure, etc. of the subject during the exercise.

The present invention has been made in order to solve the above problems, and it is possible to measure biological information such as cardiac radio waves, heart rate, and blood pressure by various exercises, and at the same time, obtain biological information during exercise of a plurality of subjects. An object of the present invention is to provide a monitoring system capable of monitoring and a portable electronic device used in the monitoring system.

[0005]

In order to solve the above-mentioned problems, a first invention is to provide a plurality of electromagnetic induction transmitters equipped with a human body and having a transmitting means for detecting a biological signal and transmitting it by electromagnetic induction. , A plurality of electromagnetic induction transmitters are provided corresponding to each of the electromagnetic induction transmitters to receive the biological signals by electromagnetic induction from the corresponding electromagnetic induction transmitters, and the data based on the received biological signals are different from those of other predetermined signals. A plurality of portable electronic devices that transmit the wireless signals in association with the code signals; and a monitoring device that receives the wireless signals from the plurality of portable electronic devices and monitors the data corresponding to each of the code signals. It is characterized by having.

A second aspect of the present invention relates to a monitoring system which receives a biological signal by electromagnetic induction from an electromagnetic induction transmitter which detects a biological signal and transmits it by electromagnetic induction, and wirelessly transmits the received biological signal to a monitoring device. A portable electronic device used, comprising: a receiving unit that receives a biological signal by electromagnetic induction from the electromagnetic induction transmitter; and a pulse data calculating unit that obtains pulse data based on the biological signal received by the receiving unit. An identification data storage unit that stores preset identification data, the pulse data obtained by the pulse data calculation unit, and the identification data stored in the identification data storage unit are associated with each other by a radio signal. And a transmitting unit for transmitting to the monitoring device.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a block diagram showing the configuration of a monitoring system to which the present invention is applied. This monitoring system is a system for simultaneously monitoring the pulse of a plurality of subjects (for example, patients in a hospital).

The plurality of shirts 1 are worn by a plurality of examinees, respectively, and are mounted on the body of the examinee, and an electronic circuit including a pair of electrodes for detecting a biological signal such as an electrocardiographic waveform (described later). In addition, each of the shirts 1 is provided with a coil 2 for transmitting the detected biomedical signal by an electromagnetic induction signal.

The plurality of wristwatches 3 are mounted on the arms of the subject who wears the shirt 1, respectively.
A coil 4 for receiving a biological signal by electromagnetic induction transmitted from the antenna 4 and an antenna 5 for transmitting a pulse signal obtained based on the biological signal as a radio signal are provided. Further, each of the plurality of wristwatches 3 is set in a memory in which a unique identification code different from the others for distinguishing the examinee is built. Then, the wristwatch 3 generates pulse data corresponding to each subject based on the biological signal transmitted from the shirt 1, converts the pulse data and the identification code into a wireless signal, and transmits the wireless signal from the antenna 5.

The receiver 6 receives the pulse data and the identification code corresponding to each subject transmitted from each of the plurality of wristwatches 3 by the antenna 7 and sends them to the monitoring device 8. The monitoring device 8 collectively displays a plurality of pulse data sent from the receiver 6 for each identification code on a CRT display device (not shown).

FIG. 2 is a diagram showing the configuration of the shirt 1. The shirt body 9 is formed, for example, in the shape of a running shirt, and the pair of electrodes 10a and 10b are provided at positions on the left and right armpits. The electrodes 10a and 10b contact the skin of the human body wearing the shirt 1 and detect a biological signal (electrocardiographic waveform) emitted from the heart of the subject and send it to the electronic circuit 11. The electronic circuit 11 is provided on the armpit of the shirt body 9 or on the waist, and transmits the detected biological signal from the coil 2 by electromagnetic induction.

FIG. 3 shows an electronic circuit 11 provided on the shirt 1.
3 is a block diagram showing the circuit configuration of FIG. The pair of electrodes 10a and 10b for detecting cardiac radio waves are connected to the detection circuit 12 and send out a biological signal (cardiac radio wave signal) to the detection circuit 12. The detection circuit 12 amplifies the biological signal output from the electrodes 10a and 10b and sends a cardiac radio wave waveform signal to the transmission circuit 13. The biological signal (cardiac radio wave waveform signal) output from the detection circuit 12 is, for example, a signal as shown in FIG. The transmission circuit 13 converts the biological signal input from the detection circuit 12 into an electromagnetic induction signal and transmits it from the coil 2. The transmission output from the transmission circuit 13 is a signal as shown in FIG. 9B, for example. In addition, the biological signal by electromagnetic induction transmitted from the coil 2 can be sufficiently detected at a distance up to about 2 m. The power supply circuit 14 includes, for example, a battery, and supplies a drive voltage to the detection circuit 12 and the transmission circuit 13 via the power supply switch 15.

FIG. 4 is a block diagram showing the circuit configuration of the wristwatch 3. The coil 4 is a detection coil that detects a biological signal based on the electromagnetic induction signal transmitted from the coil 2, and is connected to the receiving circuit 16. The receiving circuit 16 receives the biological signal by electromagnetic induction detected by the coil 4 and outputs the received biological signal to the waveform shaping circuit 17. The waveform shaping circuit 17 waveform-shapes the biological signal output from the reception circuit 16, converts it into a rectangular wave signal as shown in FIG. 9C, and outputs it to the control unit 18. The receiving circuit 16 and the waveform shaping circuit 17 start operating according to the operation signal supplied from the control unit 18.

The control unit 18 is a central processing unit that controls each unit based on a microprogram stored in advance in the ROM 19 to perform various processes. The RAM 20 is a memory that stores various data, and details will be described later with reference to FIG.
The serial conversion circuit 21 converts pulse data and identification code data, which will be described later, output from the control unit 18 into a serial signal and inputs the serial signal to the transmission circuit 22. The transmission circuit 22 converts the input serial signal into a radio signal and converts it to the antenna 5
Send from The display drive unit 23 outputs a display drive signal based on the display data output from the control unit 18 to the display unit 24 to drive the display unit 24 for display. The display unit 24 is composed of, for example, a liquid crystal display element, and displays the current time and the like.

The key input unit 25 is a K1 key, K (not shown).
Two keys and other keys are provided, and a key input signal corresponding to a key operation is output to the control unit 18. here,
The K1 key is a key for inverting a flag register F0 described later to start pulse measurement. The K2 key is a key for inverting a flag register F1 described later to set an identification code.

The alarm unit 26 produces an alarm sound based on the alarm signal output from the control unit 18. Oscillation circuit 27
Oscillates a clock signal of a predetermined frequency and inputs it to the frequency dividing / timing circuit 28. The frequency division / timing circuit 28 divides the clock signal input from the oscillation circuit 27, generates various timing signals such as a clock signal, and supplies them to the control unit 18.

FIG. 5 is a block diagram showing the circuit configuration of the receiver 6 and the monitoring device 8. The antenna 7 receives pulse data and identification data by a radio signal transmitted from the antenna 5 of the wristwatch 3, and is connected to the receiving circuit 29. The receiving circuit 29 receives the wireless signal detected by the antenna 7 and inputs the received wireless signal to the parallel conversion circuit 30. The parallel conversion circuit 30 is the receiving circuit 2
The radio signal input from 9 is converted into parallel pulse data and identification code data and input to the control unit 31. The receiving circuit 29 operates according to the operation signal supplied from the control unit 31. The control unit 31 has a built-in R (not shown).
It is a central processing unit that controls each unit based on a microprogram stored in advance in the OM to perform various processes. The control unit 31 outputs the pulse data and the identification data output from the parallel conversion circuit 30 to the monitoring device 8. Monitoring device 8
Is provided with a CRT display device (not shown), and the control unit 3
A plurality of pulse data and identification data output from 1 are collectively displayed. Further, the monitoring device 8 generates an alarm sound when the pulse data is out of a predetermined range.

FIG. 6 is a diagram showing a memory configuration of the RAM 20 shown in FIG. In the figure, the display register is a register for storing the display data displayed on the display unit 24, and the time counting register is a register for storing the current time data sequentially updated by the time counting process. The flag register F0 stores a flag indicating a pulse signal detection state, and the flag register F1 stores a flag indicating an identification code setting state. The identification code register is a register that stores identification code data. The identification code is set for each subject and is, for example, an 8-digit numerical code. For example,
The identification code of the subject A is “00000001” and the identification code of the subject B is “00000010”. The register T is a register for measuring the cycle T of the rectangular wave signal of the heart wave as shown in FIG. 9 (C). The identification data is not limited to RAM, but may be ROM or rewritable E
It may be stored in the EPROM.

Next, the operation of the above embodiment will be described with reference to FIGS. 7 and 8. FIG. 7 is a flowchart showing the overall operation of the wristwatch 3.

At step A1, it is judged whether "F0 = 1", that is, whether the content of the flag register F0 is "1". If YES is determined in step A1, the process proceeds to step A2, and if NO is determined, the process proceeds to step A3. Here, "F0 = 1" is set when the pulse measurement is set by operating the K1 key, but "F0 = 0" otherwise.

If "F0 = 1", the process proceeds to step A2. In step A2, pulse measurement processing is executed. Details of this pulse measurement processing will be described later with reference to FIG.

In the next step A3, it is determined whether or not there is a key, that is, whether or not the K1 key or the K2 key is operated in the key input section 25. If YES in step A3, the process proceeds to step A7, and if NO in step A3, the process proceeds to step A4.

If the key has not been operated yet, NO is determined in step A3 and the process proceeds to step A4. At step A4, it is judged whether or not the timing is the timing, that is, whether or not the timing signal is output. If YES is determined in step A4, the process proceeds to step A5, and if NO is determined, the process proceeds to step A6.

In case of the timing, the process proceeds to step A5 and the timing process is executed. That is, the current time data stored in the clock register of the RAM 20 is updated. In the subsequent display process of step A6, the display data stored in the display register is displayed on the display unit 24, and the process returns to step A1.

When the K1 key, the K2 key, and other keys are operated in the key input section 25, the process proceeds from step A3 to step A7. In step A7, it is determined whether or not the K1 key has been operated. If YES is determined in step A7, the process proceeds to step A8, and if NO is determined in step A8.
Proceed to 9.

When the K1 key is operated, step A8
, The contents of the flag register F0 are inverted, and "0 →
1 ”or“ 1 → 0 ”. After the execution of step A8, the process proceeds to the display process of step A6.

When any key other than the K1 key is operated, the process proceeds from step A7 to step A9. In step A9, it is determined whether the K2 key has been operated. If YES in step A9, the process proceeds to step A10, and if NO in step A9, the process proceeds to step A11.

When the K2 key is operated, step A1
0, the contents of the flag register F1 are inverted, and "0
→ 1 "or" 1 → 0 ". After execution of step A10, the process proceeds to step A6.

In step A9, if the other keys such as numerical keys are operated to input numerical data, the process proceeds to step A11. At step A11, "F1 =
It is determined whether or not "1", that is, whether or not the content of the flag register F1 is "1". If YES in step A11, the process proceeds to step A12, and if NO in step A11, the process proceeds to step A13.

When "F1 = 1", the identification code is set, and the process proceeds to step A12. In step A12, the input numerical value is used as the identification code in the RAM2.
It is stored in the identification code register of 0. Step A12
Then, the process proceeds to step A6. If "F1 = 1" is not satisfied, the process proceeds to step A13, other processing (for example, time setting, etc.) is executed, and the process proceeds to step A6.

Next, details of the pulse measuring process will be described with reference to FIG. First, in step B1, it is determined whether or not there is a biological signal. That is, it is determined whether or not the bio-signal of the cardiac radio wave transmitted from the shirt 1 by electromagnetic induction is detected by the coil 4. If YES is determined in step B1, the process proceeds to step B2, and if NO is determined in step B
Go to 4.

If the biological signal is not detected yet, the process proceeds to step B4. In step B4, the contents of register T are +
1 That is, the cycle T from the previous biological signal to the current biological signal is measured by the register T. Step B4
After execution of, the pulse measurement process of FIG. 8 ends.

When the biomedical signal is detected, YES is obtained in step B1 and step B2 is executed. Step B2
Then, the pulse calculation processing is executed. That is, since the cycle T from the previous biological signal to the current biological signal is measured by the register T, the pulse data is calculated based on this measurement time.

In the subsequent step B3, the calculated pulse data and the identification code stored in the RAM 20 are transmitted from the transmission circuit 22. That is, the control unit 18 outputs the pulse data and the identification code to the serial conversion circuit 21. The serial conversion circuit 21 converts the pulse data and the identification code output from the control unit 18 into a serial signal and inputs the serial signal to the transmission circuit 22. The transmission circuit 22 converts the input serial signal into a radio signal and transmits it from the antenna 5. After the transmission, the register T is cleared.

The receiver 6 receives the pulse signal and the radio signal of the identification code by the antenna 7 and sends them to the monitoring device 8. Since the receiver 6 distinguishes the pulse data based on the identification code, the pulse data can be discriminated for each subject even if the pulse data is transmitted from the plurality of wrist watches 3. And
The monitoring device 8 CRs the received pulse data for each identification code.
It is displayed on the T display device. At this time, if the pulse data of the subject exceeds a preset range, for example, an alarm sound is generated to notify.

Although the pulse data is constantly monitored in the above embodiment, it may be measured and monitored at predetermined time intervals, for example, every 30 seconds or 1 minute. The biological data to be monitored is not limited to pulse data, but may be cardiac radio wave data itself, blood pressure data, body temperature data, or the like. Although the monitoring device generates the alarm sound when the data exceeds the set range, the alarm part 26 of the wristwatch 3 may also generate the alarm sound. Furthermore, the portable electronic device is not limited to a wrist watch, and may be an electronic device that fits in a pocket,
A personal computer or the like may be used as the monitoring device.

[0037]

According to the present invention, a monitoring system and a monitoring system capable of measuring biological information such as cardiac radio waves, heart rate, blood pressure and the like in various exercises and simultaneously monitoring biological information during exercise of a plurality of subjects. It is possible to provide a portable electronic device used for.

[Brief description of drawings]

FIG. 1 is a diagram showing a monitoring system to which the present invention is applied.

FIG. 2 is a diagram showing a configuration of a shirt.

FIG. 3 is a diagram showing a circuit configuration of an electronic circuit 11.

FIG. 4 is a diagram showing a circuit configuration of a wristwatch 3.

5 is a diagram showing a circuit configuration of a receiver 6 and a monitoring device 8. FIG.

FIG. 6 is a diagram showing a memory configuration of a RAM 20.

FIG. 7 is a flowchart showing an operation.

FIG. 8 is a flowchart showing an operation.

FIG. 9 is a diagram showing a signal waveform.

[Explanation of symbols]

 1 ... shirt 2,4 ... coil 3 ... wristwatch 5,7 ... antenna 6 ... receiver 8 ... monitoring device 9 ... shirt body 10a, 10b ... electrode 11 ... electronic circuit

Claims (4)

[Claims] 1. A plurality of electromagnetic induction transmitters, which are mounted on a human body and have a transmission means for detecting a biological signal and transmitting it by electromagnetic induction, and a plurality of electromagnetic induction transmitters provided corresponding to the plurality of electromagnetic induction transmitters, respectively. A plurality of portable electronic devices that receive a biological signal by electromagnetic induction from an electromagnetic induction transmitter, and transmit data based on the received biological signal by a radio signal in association with a predetermined code signal different from the others. And a monitoring device that receives the wireless signals from the plurality of portable electronic devices and monitors the data corresponding to each code signal. 2. The monitoring system according to claim 1, wherein the monitoring device comprises display means for displaying the data for each code signal. 3. A portable device used in a monitoring system for receiving a biological signal by electromagnetic induction from an electromagnetic induction transmitter that detects the biological signal and transmits it by electromagnetic induction, and wirelessly transmits the received biological signal to a monitoring device. An electronic device, receiving means for receiving a biological signal by electromagnetic induction from the electromagnetic induction transmitter, pulse data calculation means for obtaining pulse data based on the biological signal received by the receiving means, and preset Identification data storage means for storing the identification data, the pulse data obtained by the pulse data calculation means, and the identification data stored in the identification data storage means are associated with each other and transmitted to the monitoring device by a radio signal. A portable electronic device for use in a surveillance system, comprising: 4. The portable electronic device used in the monitoring system according to claim 3, wherein the identification data storage means is composed of a nonvolatile semiconductor memory in which identification data can be rewritten.