JP2006296564A - Optical biological sensor, base device, biological information collecting system, and sensor communication method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an optical biological sensor which transmits and receives information by a simple structure with fewer failures, a base device, a biological information collecting system, and a sensor communication method. <P>SOLUTION: In S100, whether or not the connection between a pulse wave sensor 1 and the base device 17 is established is determined. It means that an S side contact detecting terminal 19 makes contact with a B side contact detecting terminal 39, and whether or not contact detecting signals are inputted to the terminal 19 from the terminal 39 is determined by the contact. In S110, a control mode of a CPU61 is switched from a measurement mode to a transmission mode. In the next S120, data of the pulse wave or the like stored in the memory is transmitted to the base device 17 in the transmission mode, or downloading of the data is implemented. When the pulse sensor 1 is mounted on the base device 17, the information of the pulse wave or the like is automatically transmitted to the base device 17 from the pulse sensor 1. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an optical biological sensor, a base device, a biological information collection system, and a sensor communication method that can obtain various types of information such as pulse waves from a living body.

Conventionally, for example, an optical pulse wave sensor has been used in order to accurately grasp the state of a patient or the like, for example, in a medical field.
In this type of pulse wave sensor, when measuring a pulse wave, the measured data is stored in a memory. After the measurement, the pulse wave sensor and the charger with a communication function (base station) are connected to the cable, and the base station and the personal computer are connected with the cable. Techniques for downloading data are known.

In addition, there is also a technique for transmitting data by wireless communication from a sensor that detects biological information to a base station that collects the information (see cited documents 1 to 3).
Japanese Patent Laid-Open No. 2003-275183 Japanese Patent Laid-Open No. 2003-309485 Japanese Unexamined Patent Publication No. 2000-270486

However, as described above, in a system in which the pulse wave sensor and the base station are mechanically connected by a cable, there is a possibility that contact failure may occur due to breakage or deterioration.
In addition, in the case of a system that transmits data wirelessly, there is a problem that a dedicated wireless communication circuit is required in addition to a biological information detection circuit and the like.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an optical biosensor, a base device, and a biometric information collection system that can transmit and receive information with a simple configuration with few failures. And providing a sensor communication method.

(1) According to the first aspect of the present invention, the biological information detected by the biological state detection means is transmitted to the base device that is the transmission counterpart of the optical biological sensor, using the sensor-side light emitting means.
That is, the optical biological sensor (for example, pulse wave sensor) is provided with sensor side light emitting means such as an LED in order to detect biological information (for example, pulse wave). The biological information is transmitted to the base device.

As a result, it is not necessary to use a conventional wireless communication circuit or to connect with a communication cable, so that biological information can be easily transmitted with a simple configuration with few failures.
The living body information to be transmitted includes various information measured by the optical biological sensor and stored in the memory, that is, various signals obtained from the reflected light, for example, a pulse wave (pulse rate, pulse interval) A signal indicating body movement or information obtained by analyzing the signal can be considered. Further, the measured raw measurement data (data stored in the memory) may be transmitted.

  (2) In the invention of claim 2, since the optical biological sensor has a measurement mode in which the state of the living body is detected by the biological state detection means and a transmission mode in which the biological information is transmitted to the base device, the mode is switched. Thus, the operation corresponding to each mode is performed.

Until there is a command signal from the base device (a signal for commanding transmission), a standby mode may be provided to wait for transmission of biological information to the base device.
(3) In invention of Claim 3, it can detect that the optical biological sensor was mounted | worn with the base apparatus by the sensor side contact detection part.

  In addition, as this sensor side contact detection part, the terminal which contacts a base side terminal (base side contact detection part) is mentioned. Moreover, it is good also as a structure detected by an electromagnetic, without contacting with the terminal of a base side.

  (4) In the invention of claim 4, when it is detected that it is attached to the base device, the transmission mode is set. Thereby, when the optical biosensor is attached to the base device, the biometric information can be automatically transmitted.

  (5) In the invention of claim 5, a mode changeover switch for switching between the measurement mode and the transmission mode is provided. Therefore, since the mode can be switched by this mode change switch, the optical biosensor can be operated at a desired timing.

(6) In the invention of claim 6, since the charging unit is provided, it can be charged by the power supply configuration of the base device.
In order to perform charging, the optical biosensor and the base device may be provided with terminals that are in contact with each other, but may be configured to supply electric power electromagnetically.

(7) In the invention of claim 7, two or more light emitting means such as LEDs are provided as the sensor side light emitting means.
Therefore, it is possible to efficiently transmit the living body information by using a plurality of sensor side light emitting means. Further, the role of the light emitting means can be distinguished like means for transmitting biological information and means for transmitting information for checking information such as a checksum. Further, when different types of sensor-side light emitting means such as an infrared LED and a green LED are used, the usage method can be adapted to the characteristics of each means. For example, the role can be divided so that the infrared LED can detect body movement and transmit information, and the green LED can detect pulse waves.

(8) In invention of Claim 8, the lens is arrange | positioned at the surface side of the sensor side light emission means.
With this lens, for example, the light condensing property of the LED can be enhanced, and for example, the LED or PD can be protected.

(9) In the invention of claim 9, a translucent cover is disposed on the surface side of the sensor side light emitting means.
For example, the LED and the PD can be protected by this cover. A lens may be arranged inside the cover.

(10) In the invention of claim 10, since the cover has a visible light cutting function, noise due to visible light can be cut.
(11) The invention of claim 11 is a base device in which biological information is transmitted from an optical biological sensor. In this base device, biological information is received by the base-side light receiving means of the base-side optical device section. .

  (12) In the twelfth aspect of the invention, the base side light emitting means transmits various signals (for example, a command signal for requesting biological information transmission) to the sensor side optical device section (sensor side light receiving means). can do.

(13) In the invention of claim 13, the base side light emitting means is used to transmit a command signal for instructing the sensor side light receiving means to transmit biological information from the sensor side light receiving means.
(14) In the invention of claim 14, the base device includes a mounting structure that is mounted in a state where the optical biosensor is in contact. Therefore, the optical biosensor can be attached to the base device.

  (15) In the invention of claim 15, the optical biosensor is attached to the base device while being inclined (inclined with respect to the vertical direction). Accordingly, the sensor-side optical device unit and the base-side optical device unit can be disposed close to (or in contact with) due to gravity.

(16) In the invention of claim 16, the optical biosensor is mounted horizontally with respect to the base device.
(17) In the invention of claim 17, since the base device includes the base-side contact detection unit, when the optical biosensor is attached, the base-side contact detection unit of the optical biosensor A detection signal (for example, a contact detection signal) indicating that the device is attached can be transmitted.

In addition, as a base side contact detection part, the detection part which transmits the detection signal by the terminal which contacts directly or electromagnetically is employable.
(18) Since the power supply configuration is provided in the invention of claim 18, the charging unit of the optical biosensor can be charged by this power supply configuration.

In addition, as a power supply structure, the structure which charges by the terminal which contacts directly or electromagnetically is employable.
(19) According to the nineteenth aspect of the present invention, there are provided two or more base side light receiving means (corresponding to the sensor side light emitting means).

  Therefore, biological information can be efficiently received using a plurality of base-side light receiving means. Also, roles can be distinguished like means for receiving biological information and means for receiving information for checking information such as a checksum.

(20) In the invention of claim 20, since the base device includes a recess into which the optical biosensor is fitted, the optical biosensor can be easily attached.
(21) The invention of claim 21 illustrates a recess. The bottom of the optical biosensor (the tip side in the mounting direction) is fitted into the bottom-side recess, and the sensor-side optical device side of the optical biosensor is fitted into the side-side recess.

(22) The invention of claim 22 illustrates a groove-like recess.
(23) In the invention of claim 23, since the groove of the side surface side concave portion is further concave at the center, the sensor side optical device portion can be disposed in this concave portion.

  (24) In the invention of claim 24, the depth of the concave portion on the bottom side is set to such a depth that the band does not get in the way when the optical biosensor is fitted, so that the optical biosensor can be easily attached. This can be done reliably and reliably. Thereby, transmission can also be performed reliably.

(25) The invention of claim 25 exemplifies a base device provided with a base portion and a standing portion.
(26) Since the invention of claim 26 has a step between the base portion and the standing portion, it is easy to mount the optical biosensor with a band.

(27) In the invention of claim 27, the band of the optical biosensor can be externally fitted to the standing portion.
(28) In the invention of claim 28, since the side surface of the standing portion has a curved surface, a rounded band can be easily applied.

(29) In the invention of claim 29, a lens is provided on the surface side of the base side light emitting means.
With this lens, for example, the light condensing property of the LED can be enhanced, and for example, the LED or PD can be protected.

(30) In the invention of claim 30, a translucent cover is provided on the surface side of the base side light emitting means.
For example, the LED and the PD can be protected by this cover. A lens may be arranged inside the cover.

(31) In the invention of claim 31, the cover has a visible light cut function.
(32) In the invention of claim 32, the biological information collecting system includes an optical biological sensor and a base device.

(33) In the invention of claim 33, the biological information transmitted using the sensor side light emitting means can be received by the base side light receiving means.
(34) In the invention of claim 34, a predetermined command signal (for example, a signal for transmitting biological information from an optical biological sensor) transmitted using the base side light emitting means is received by the sensor side light receiving means. Can do.

  (35) In the invention of claim 35, when the command signal is transmitted by the base side light emitting means, the optical biological sensor is set to the transmission mode based on the command signal. This makes it possible to transmit biological information from the optical biological sensor to the base device.

  (36) In the invention of claim 36, when the optical biosensor is attached to the base device, the sensor side optical device portion and the base side optical device portion are disposed at positions facing each other. By such means, it is possible to suitably transmit and receive information.

  (37) In the invention of claim 37, when the optical biosensor is attached to the base device, the optical biosensor and the base device are arranged such that the distance and the position between the light emitting means side and the light receiving means side are constant. The structure is fitted.

  Thus, when the optical biosensor is fitted in the base device, the distance and position between the light emitting means side and the light receiving means side are always constant, so that information can be transmitted and received with high accuracy.

The light emitting means and the light receiving means include a sensor side light emitting means and a base side light receiving means, and a base side light emitting means and a sensor side light receiving means.
(38) In the invention of claim 38, when an infrared LED is used as the sensor side light emitting means, the visible light cut member is disposed on the surface side of the base side light receiving means, so that noise caused by visible light can be cut. it can.

  (39) In the invention of claim 39, when the lenses are arranged in the base side optical device unit and the sensor side optical device unit, the concave and convex portions of the lenses are fitted together, so that the positional deviation is In addition, information can be suitably transmitted and received by optical means.

  (40) According to the invention of claim 40, when the translucent covers are arranged in the base side optical device unit and the sensor side optical device unit, the concaves and convexes of the covers are fitted together. There is no positional deviation, and information can be suitably transmitted and received by optical means.

(41) In the invention of claim 41, the terminal of the base device and the terminal of the optical biosensor are in mechanical contact.
(42) In the invention of claim 42, since the direction in which the optical biosensor is mounted is defined by the shape of the terminals that are in contact with each other, the mounting direction is not mistaken.

(43) In the invention of claim 43, transmission / reception of signals between the base device and the optical biosensor is performed using electromagnetics.
(44) According to the invention of claim 44, electric power is supplied from the base device to the optical biosensor using electromagnetism.

  (45) In the invention of claim 45, when two or more sensor side light emitting means are arranged in the sensor side optical device part, the base side optical device part corresponds to each sensor side light emitting means respectively. Base side light receiving means is arranged.

  Therefore, it is possible to efficiently transmit the living body information by using a plurality of sensor side light emitting means. Moreover, roles can be distinguished like means for transmitting biological information and means for transmitting information for checking information such as a checksum. Further, when different types of sensor-side light emitting means such as an infrared LED and a green LED are used, the usage method can be adapted to the characteristics of each means.

  (46) In the invention of claim 46, the sensor-side optical device section and the base-side optical device section are provided with a plurality of pairs of light emitting means and light receiving means, and a plurality of pairs of light emitting means and light receiving means are used to Send.

  In addition, as a plurality of pairs of light emitting means and light receiving means, for example, an optical biological sensor includes a first light emitting means, and correspondingly, the base device includes a first light receiving means, and the optical biological sensor includes a first light receiving means. A case where two light emitting means are provided and the second light receiving means is provided in the base device corresponding thereto is given.

  (47) In the invention of claim 47, the sensor side optical device unit and the base side optical device unit are provided with a plurality of pairs of light emitting means and light receiving means, and the plurality of pairs of light emitting means and light receiving means are distinguished and used. Check information for transmitting information and checking biological information to be transmitted is transmitted.

  In addition, as a plurality of pairs of light emitting means and light receiving means, for example, an optical biological sensor is provided with first light emitting means (for transmitting biological information), and correspondingly, the base device is provided with the first light receiving means. And a second light emitting means (for transmitting information such as a checksum) is provided in the optical biosensor, and a second light receiving means is provided in the base device corresponding to the second light emitting means.

  (48) The invention of claim 48 is a sensor communication method between an optical biological sensor and a base device, and transmits biological information to the base-side light receiving means using the sensor-side light emitting means. .

(49) In the invention of claim 49, when the optical biological sensor is mounted on the base device, biological information is transmitted from the optical biological sensor to the base device.
(50) In the invention of claim 50, when a predetermined command signal (signal requesting transmission of biological information) is transmitted from the base device to the optical biological sensor, the optical biological sensor transmits the base device. The living body information is transmitted.

  (51) In the invention of claim 51, when the optical biosensor is attached to the base device, the optical biosensor is set to the standby mode, and when the command signal is received from the base device, the optical biosensor Biological information is transmitted from the biological sensor to the base device.

  (52) In the invention of claim 52, when the optical biosensor is set to the standby mode by the mode change switch, the optical biosensor transmits a request signal for requesting a command signal to the base device, and the base device When the command signal is received from the optical device, biological information is transmitted from the optical biological sensor to the base device.

  (53) In the invention of claim 53, when the optical biosensor is set to the standby mode by the mode changeover switch, when the command signal is received from the base device, the optical biosensor is moved from the base device to the base device. Send biological information.

  BEST MODE FOR CARRYING OUT THE INVENTION The best mode (example) of the present invention will be described below with reference to the drawings.

  Here, an optical biological sensor, a base device, a biological information collection system, and a sensor communication method capable of detecting biological information such as a pulse wave of a subject and transmitting this information to the base device will be described.

a) First, the optical biosensor of this embodiment will be described.
As shown in FIG. 1, the optical biological sensor is a pulse wave sensor 1 that can be attached to, for example, a finger or wrist of a human body to detect a pulse wave or the like.

The pulse wave sensor 1 is a well-known optical reflective sensor, and includes a box-shaped sensor body 3 and an annular wristband 5 (connected to the sensor body 3) having elasticity.
The front surface of the sensor body 3 includes a display unit 7 and an operation switch 9, and the back surface includes a sensor side (S side) optical device unit 11 that optically detects a pulse wave and the like. In addition, a pair of S-side charging terminals 13 and 15 for charging the sensor body 3 and a sensor body 3 are provided on one side surface of the sensor body 3 in the left-right direction (a direction perpendicular to the wristband 5). And an S-side contact detection terminal 19 for detecting that the base device 17 (see FIG. 3) is mounted. The operation switch 9 is a switch that can be switched to three positions: power ON, power OFF, and pulse wave measurement start.

  As shown in FIG. 2, the pulse wave sensor 1 includes a pair of light emitting elements, that is, a green light emitting diode (S side green LED) 21, an infrared light emitting diode (S side infrared LED) 23, and a reflection thereof. One photodiode (S-side PD) 25 that receives light and an S-side lens 27 are provided.

  Among these, the S-side green LED 21 is for detecting a pulse wave from reflected light (that is, from a change in the amount of hemoglobin in the capillary artery) with respect to the human body as a basic performance. It is for detecting a body movement from the change of the reflected light.

b) Next, the base device 17 of the present embodiment will be described.
As schematically shown in FIG. 3, the base device 17 is a charger with a communication function that is used by mounting the pulse wave sensor 1, and includes a base portion 31 on which the pulse wave sensor 1 is placed, And a plate-like standing portion 33 standing obliquely from the base portion 31.

  On the upper surface side of the base portion 31 of the base device 17, as shown in FIG. 4, charging to the pulse wave sensor 1 corresponding to the charging terminals 13 and 15 and the S-side contact detection terminal 19 of the pulse wave sensor 1 is performed. Are provided with base side (B side) charging terminals 35 and 37 and a B side contact detection terminal 39 in contact with the S side contact detection terminal 19. The B-side charging terminals 35 and 37 and the B-side contact detection terminal 39 are urged upward by a spring (not shown) and can be moved up and down.

  Returning to FIG. 3, a substantially similar B-side optical device unit 41 is disposed facing the S-side optical device unit 11 of the pulse wave sensor 1. That is, the B-side optical device unit 41 includes a B-side infrared LED 43, a B-side PD 45, and a B-side lens 47. The B-side PD 45 is disposed to face the S-side infrared LED 23, and the B-side red LED is disposed. The outer LED 43 is disposed so as to face the S-side PD 25.

  Further, as shown in FIG. 5 (b), the base portion 31 of the base device 17 is fitted to the bottom side of the groove shape into which the pulse wave sensor 1 is fitted, corresponding to the bottom shape of the pulse wave sensor 1. Since the concave portion 51 is provided, the pulse wave sensor 1 can be moved in the mounting direction and fitted into the bottom side fitting concave portion 51 without any deviation.

  Further, as shown in FIG. 5A, a side-side fitting recess 53 is formed on the side of the standing portion 33 where the pulse wave sensor 1 is mounted (downward in the figure) in accordance with the outer shape of the pulse wave sensor 1. A central concave portion 55 is provided at a central portion of the side-side fitting concave portion 53, that is, at a position corresponding to the S-side optical device portion 11 and the B-side optical device portion 41.

  Further, as shown in FIG. 6, the wristband 5 of the pulse wave sensor 1 is disposed so as to be fitted on the standing portion 33 of the base device 17. Moreover, when providing the support | pillar 57 in the back side (above FIG.6 (b)) of the standing part 33, the wristband 5 is arrange | positioned so that the standing part 33 and the support | pillar 57 may be fitted. The depth of the bottom-side fitting recess 51 is set to such a depth that the wristband 5 does not hit the surface of the base portion 31 when the pulse wave sensor 1 is externally fitted to the standing portion 33 or the like. Yes.

c) Next, an electrical configuration of the biological information collecting system including the pulse wave sensor 1 and the base device 17 will be described.
The living body information collecting system of the present embodiment includes a base device 17 and a pulse wave sensor 1 that is mounted (sitting) on the base device 17.

And by mounting | wearing with the pulse wave sensor 1, the S side optical apparatus part 11 and the B side optical apparatus part 41 adjoin and oppose, thereby, while S side infrared LED23 and B side PD45 oppose, S Side PS25 and B side infrared LED43 oppose. Further, the S-side contact detection terminal 19 and the B-side contact detection terminal 39 are in contact with each other. The S-side charging terminals 13 and 15 and the B-side charging terminals 35 and 37 are also in contact with each other.

  In this biological information collection system, the pulse wave sensor 1 detects pulse waves and the like by the S-side optical device unit 11 and outputs information such as pulse waves to the base device 17, while the base device 17 The B-side optical device unit 41 receives information transmitted from the pulse wave sensor 1. The base device 17 is connected to the personal computer 59, and information transmitted from the pulse wave sensor 1 is downloaded to the personal computer 59 through the base device 17. This will be described in detail below.

  The pulse wave sensor 1 includes a CPU 61 that controls the pulse wave sensor 1, a memory 63 that stores information such as detected pulse waves, the S-side contact detection terminal 19, the S-side infrared LED 23, and the An S-side green LED 21; an S-side LED drive circuit 65 for driving the S-side infrared LED 23 and the S-side green LED 21; the S-side PD 25; and an S-side amplifier circuit 67 for amplifying a signal input from the S-side PD 25; An S-side comparison circuit 69 that generates a digital signal by comparing an analog signal input from the S-side amplified signal 67 with a reference voltage, and an S-side reference voltage circuit 71 that generates a reference voltage are provided.

  The CPU 61 performs control for detecting pulse waves and body movements in the measurement mode. That is, the S-side drive circuit 65 is driven, the S-side infrared LED 23 and the S-side green LED 21 are controlled, and processing for detecting pulse waves and body movements from the signal received by the S-side PD 25 is performed. The analysis data is temporarily stored in the memory 63. The digital signal converted by the S-side comparison circuit 69 is input to the CPU 61.

  Further, the CPU 61 performs control for transmitting information such as a pulse wave to the base device 17 in the transmission mode. That is, the S-side drive circuit 65 is driven, the S-side infrared LED 23 is controlled, and the information stored in the memory 63 is transmitted as an optical signal to the base device 17 side.

  The base device 17 contacts the S-side contact detection terminal 19 and transmits a signal (a contact detection signal notifying that contact has been made) and a contact transmitted to the B-side contact detection terminal 39. A contact detection signal circuit 73 for generating a detection signal, the B side PD 45, a B side amplification circuit 75 for amplifying a signal input from the B side PD 45, and an analog signal input from the B side amplification signal 75 are compared with a reference voltage. A B-side comparison circuit 77 for generating a digital signal, a B-side reference voltage circuit 79 for generating a reference voltage, the B-side infrared LED 43, and a B-side LED drive circuit 81 for driving the B-side infrared LED 43, And a serial interface 83 for outputting a control signal for the B-side LED drive circuit 81 and for inputting a signal from the B-side comparison circuit 77.

d) Next, the contents of control in this embodiment will be described.
Here, the control content performed on the pulse wave sensor 1 side will be described based on the flowchart of FIG.

  First, in step (S) 100, it is determined whether or not the pulse wave sensor 1 and the base device 17 are connected. That is, it is determined whether or not a contact detection signal is input from the B side contact detection terminal 39 to the S side contact detection terminal 19 due to contact between the S side contact detection terminal 19 and the B side contact detection terminal 39. If a positive determination is made here, the process proceeds to S110, and if a negative determination is made, the determination is repeated.

In S110, since the pulse wave sensor 1 is connected to the base device 17, the control mode of the CPU 61 is switched from the measurement mode to the transmission mode.
In subsequent S120, data such as a pulse wave stored in the memory 63 is transmitted to the base device 17 side in the transmission mode. That is, data download is executed, and this process is temporarily terminated.

That is, in this control, when the pulse wave sensor 1 is attached to the base device 17, information such as a pulse wave is automatically transmitted from the pulse wave sensor 1 to the base device 17.
On the other hand, the base device 17 that has received the information transmitted from the pulse wave sensor 1 transmits the information to the personal computer 59.

  e) As described above, in this embodiment, the pulse wave sensor 1 detects that the pulse wave sensor 1 is attached to the base device 17 by the contact between the B side contact detection terminal 39 and the S side contact detection terminal 19. In this case, biological information stored in the memory 63 such as a pulse wave and body movement is transmitted to the base device 17 using the S-side infrared LED 23 of the pulse wave sensor 1 and the B-side PD 45 of the base device 17. .

  Thereby, since it is not necessary to use a conventional special wireless communication circuit or to connect with a communication cable, the biological information can be reliably and easily transmitted to the base device 17 with few failures. Therefore, the personal computer 59 can obtain the biometric information by downloading it via the base device 17.

Next, the second embodiment will be described, but the description of the same contents as the first embodiment will be omitted.
In the present embodiment, since the control content is different from that of the first embodiment, the control content will be described. Note that the same numbers are assigned to similar hardware configurations.

  As shown in the flowchart of FIG. 9, in this embodiment, first, in S200, it is determined whether or not the pulse wave sensor 1 and the base device 17 are connected. If a positive determination is made here, the process proceeds to S210, and if a negative determination is made, the determination is repeated.

  In S210, the control mode of the CPU 61 is switched to the download standby mode. The download standby mode is a mode for waiting for download until a signal for starting download (download start command) is input.

In subsequent S220, it is determined whether or not a download start command is received from the base device 17. If an affirmative determination is made here, the process proceeds to S230, whereas if a negative determination is made, the determination is repeated.
In S230, since a download start command has been received, the control mode of the CPU 61 is switched to the transmission mode.

In S240, data download is executed, and this process is temporarily terminated.
That is, in this control, when the pulse wave sensor 1 is attached to the base device 17, the mode is switched to the download standby mode, and when a download start command is input from the base device 17, the pulse wave is transmitted from the pulse wave sensor 1 to the base device 17. Etc. are transmitted.

  Also according to this embodiment, the same effects as those of the first embodiment can be obtained.

Next, the third embodiment will be described, but the description of the same contents as the first embodiment will be omitted.
In the present embodiment, since the configuration and control content of the pulse wave sensor are different from those of the first embodiment, different configurations and control content will be described.

  As shown in FIG. 10, the pulse wave sensor 91 of this embodiment includes a power switch 93 that turns the power on and off, and a mode switch 95 that switches the control mode between the measurement mode and the download standby mode. .

  As shown in the flowchart of FIG. 11, first, in S300, it is determined whether or not the mode changeover switch 95 is in the download standby mode. If a positive determination is made here, the process proceeds to S310, whereas if a negative determination is made, the process proceeds to S320.

In S310, since the mode changeover switch 95 is set to the download standby mode, the control mode of the CPU 61 is set to the download standby mode.
On the other hand, in S320, the control mode is set to the measurement mode.

  In the download standby mode, as shown in the flowchart of FIG. 12, a download start request signal for requesting a download start command is transmitted from the pulse wave sensor 1 to the base device 17 in S400.

In continuing S410, it is determined whether the pulse wave sensor 1 received the download start command. If a positive determination is made here, the process proceeds to S420, whereas if a negative determination is made, the process returns to S400.
In S420, since the download start command is received, the control mode of the CPU 61 is switched to the transmission mode.

In S430, data download is executed, and this process is temporarily terminated.
That is, in this control, when the mode changeover switch 95 of the pulse wave sensor 91 is operated and the mode is switched to the download standby mode, the base device 17 is requested to input a download start command and downloaded from the base device 17. When a start command is input, information such as a pulse wave is transmitted from the pulse wave sensor 91 to the base device 17.

  Also according to this embodiment, the same effects as those of the first embodiment can be obtained.

Next, the fourth embodiment will be described, but the description of the same contents as the first embodiment will be omitted.
In the present embodiment, since the control content is different from that of the third embodiment, the control content will be described.

  As shown in the flowchart of FIG. 13, first, in S500, it is determined whether or not the mode changeover switch 95 is in the download standby mode. If a positive determination is made here, the process proceeds to S510, and if a negative determination is made, the process proceeds to S520.

In S510, since the mode switch 95 is set to the download standby mode, the control mode of the CPU 61 is switched to the download standby mode.
On the other hand, in S520, the control mode is switched to the measurement mode.

  In the download standby mode, as shown in the flowchart of FIG. 14, it is determined in S600 whether a download start command has been received from the base device 17. If an affirmative determination is made here, the process proceeds to S610, while if a negative determination is made, the same determination is repeated.

In S610, since the download start command is received, the control mode of the CPU 61 is switched to the transmission mode.
In S620, data download is executed, and this process is temporarily terminated.

  That is, in this control, when the mode changeover switch 95 of the pulse wave sensor 91 is operated and the mode is switched to the download standby mode, when a download start command is input from the base device 17, the pulse wave sensor 91 transmits the base device 17. Information such as a pulse wave is transmitted.

  Also according to this embodiment, the same effects as those of the first embodiment can be obtained.

Next, although Example 5 is demonstrated, description of the content similar to the said Example 1 is abbreviate | omitted.
In the present embodiment, the S-side and B-side optical device sections are different from the first embodiment.
As shown in FIG. 15, in the present embodiment, the lens 101 of the B side optical device portion of the base device is concave, and the lens 103 of the S side optical device portion of the pulse wave sensor facing it is convex.

That is, the concavo-convex shape of the lens 101 of the B-side optical device unit and the lens 103 of the S-side optical device unit is a shape that fits snugly.
Therefore, when the pulse wave sensor is mounted on the base device, it can be mounted without positional displacement. In particular, the lens 101 of the B-side optical device unit and the lens 103 of the S-side optical device unit can be arranged close to appropriate positions, so that the influence of noise can be eliminated and data transmission / reception can be suitably performed. .

Next, the sixth embodiment will be described, but the description of the same contents as the first embodiment will be omitted.
In this embodiment, the B-side optical device section is different from the first embodiment.
As shown in FIG. 16, in this embodiment, a visible light cut film 115 is disposed between the lens 113 and the B-side PD 115 in the B-side optical device unit 111 of the base device.

  Therefore, when data is transmitted / received using infrared light, noise due to visible light can be prevented.

Next, although Example 7 is demonstrated, description of the content similar to the said Example 1 is abbreviate | omitted.
In the present embodiment, the S-side and B-side optical device sections are different from the first embodiment.
As shown in FIG. 17, in this embodiment, a flat transparent cover 123 is disposed on the surface (right side of the figure) of the S-side optical device 121 of the pulse wave sensor. A lens 127 is disposed between the side infrared LEDs 125.

  A flat transparent cover 131 is disposed on the surface (left side of the figure) of the B side optical device section 129 of the base device, and a lens is disposed between the cover 131 and the B side infrared LED 133. 135 is arranged.

  Here, a visible light cut film 139 is disposed between the cover 131 and the B-side PD 137, but a visible light cut film is disposed on the covers 123 and 131, or the covers 123 and 131 themselves cut visible light. You may use what has the performance to do.

  Therefore, when data is transmitted / received using infrared light, noise due to visible light can be prevented. Further, since the surfaces of the covers 123 and 131 are flat, there is an advantage that the surfaces are not easily damaged as compared with the case where the lens is exposed.

Next, the eighth embodiment will be described, but the description of the same contents as the first embodiment will be omitted.
In the present embodiment, the S-side and B-side optical device sections are different from the first embodiment.
As shown in FIG. 18, in the present embodiment, the cover 141 of the B side optical device portion of the base device is concave, and the cover 143 of the S side optical device portion of the pulse wave sensor facing it is convex.

That is, the concave and convex shapes of the cover 141 of the B-side optical device unit and the cover 143 of the S-side optical device unit are shapes that fit snugly.
Therefore, when the pulse wave sensor is mounted on the base device, it can be mounted without positional displacement. In particular, since the cover 141 of the B-side optical device unit and the cover 143 of the S-side optical device unit can be disposed close to appropriate positions, the influence of noise can be eliminated and data can be transmitted and received suitably. .

Next, the ninth embodiment will be described, but the description of the same contents as the first embodiment will be omitted.
In the present embodiment, the S-side and B-side optical device sections are different from the first embodiment.
As shown in FIG. 19, in this embodiment, a pair of B-side PDs 155 and 157 are arranged in the B-side optical device unit 153 of the base device 151.

  That is, one B-side PD 155 is disposed facing the S-side infrared LED 163 of the S-side optical device 161 of the pulse wave sensor 159, and the other B-side PD 157 is disposed facing the S-side green LED 165. ing.

Therefore, in this embodiment, information can be efficiently transmitted by two sets of light emitting and light receiving elements.
For example, by using the S-side green LED 165 and the other B-side PD 157 to transmit and receive a checksum signal, it is possible to improve data accuracy.

Next, Example 10 will be described, but description of the same contents as Example 1 will be omitted.
The present embodiment is different from the first embodiment in that the pulse wave sensor is mounted on the base device.
As shown in FIG. 20, in this embodiment, a concave portion 173 is provided on the upper part of the flat base device 171, and the pulse wave sensor 175 is horizontally mounted in the concave portion 173.

  Information is transmitted and received by the B-side optical device unit 177 disposed in the recess 173 and the S-side optical device unit 179 on the lower surface side of the pulse wave sensor 175.

Next, although Example 11 is demonstrated, description of the content similar to the said Example 1 is abbreviate | omitted.
The present embodiment is different from the first embodiment in that the pulse wave sensor is mounted on the base device.
As shown in FIG. 21, in this embodiment, the base device 181 includes a disk-shaped base portion 183 whose upper surface is inclined, and a columnar standing portion 185 that is erected on the upper portion of the base portion 183. It consists of and.

On the upper surface of the base portion 183, a bottom side fitting recess 189 into which the pulse wave sensor main body 187 is fitted is provided at the base of the standing portion 185.
Further, the bottom-side fitting recess 189 is slightly inclined toward the upright portion 185 side, so that the wristband 191 is not distorted in the vertical direction when the wristband 191 is externally fitted to the upright portion 185. The depth is set.

  Therefore, when the wristband 191 is externally fitted to the standing portion 185 and the pulse wave sensor main body 187 is fitted to the bottom side fitting recess 189, the optical devices (not shown) on the S side and B side are always A preferable distance is maintained.

Needless to say, the present invention is not limited to the above-described embodiments, and can be implemented in various modes without departing from the scope of the present invention.
(1) For example, the pulse wave sensor may store the signal obtained by the measurement as it is and transmit the data to the base device side. Note that a function performed by a personal computer may be mounted on the base device without connecting the personal computer to the base device.

  (2) Data may be transmitted using other LEDs instead of infrared LEDs.

It is a perspective view which shows the pulse wave sensor of Example 1. FIG. It is explanatory drawing which shows the state which measures a pulse wave with the pulse wave sensor of Example 1. FIG. It is explanatory drawing which shows the structure of the biometric information collection system of Example 1. FIG. It is explanatory drawing which shows the contact state of the terminal in the biometric information collection system of Example 1. FIG. It is explanatory drawing which shows the state with which the pulse wave sensor of Example 1 is mounted | worn with a base apparatus. It is explanatory drawing which shows the state with which the pulse wave sensor with a band of Example 1 is mounted | worn with a base apparatus. It is a block diagram which shows the electrical structure of the biometric information collection system of Example 1. FIG. 3 is a flowchart illustrating processing in the pulse wave sensor according to the first embodiment. 6 is a flowchart illustrating processing in a pulse wave sensor according to a second embodiment. It is explanatory drawing which shows the structure of the pulse wave sensor of Example 3. FIG. 12 is a flowchart illustrating main processing in the pulse wave sensor according to the third embodiment. 12 is a flowchart illustrating processing in a standby mode in the pulse wave sensor according to the third embodiment. 10 is a flowchart illustrating main processing in the pulse wave sensor according to the fourth embodiment. 10 is a flowchart illustrating processing in a standby mode in the pulse wave sensor according to the fourth embodiment. It is explanatory drawing which shows the optical device part of the pulse wave sensor of Example 5, and a base apparatus. It is explanatory drawing which shows the optical device part of the pulse wave sensor of Example 6, and a base apparatus. It is explanatory drawing which shows the optical device part of the pulse wave sensor of Example 7, and a base apparatus. It is explanatory drawing which shows the optical device part of the pulse wave sensor of Example 8, and a base apparatus. It is explanatory drawing which shows the structure of the biometric information collection system of Example 9. FIG. It is explanatory drawing which shows the structure of the biometric information collection system of Example 10. FIG. It is explanatory drawing which shows the structure of the biometric information collection system of Example 11. FIG.

Explanation of symbols

1, 91, 159, 175 ... Pulse wave sensor 17, 151, 171, 181 ... Base device 21, 165 ... S side green LED
23, 125, 163 ... S-side infrared LED
25 ... S side PD
43, 133 ... B side infrared LED
45, 115, 137, 155, 157 ... B side PD
11, 121, 161, 179... S-side optical device section 41, 111, 129, 153, 177... B-side optical device section 31, 183 ... base section 33, 185. ... B side contact detection terminal

Claims (53)

A sensor side light emitting means for irradiating light to a living body;
Sensor-side light receiving means for receiving reflected light that is irradiated from the sensor-side light emitting means and reflected by the living body;
Biological state detection means for detecting the state of the biological body based on reflected light received by the sensor-side light receiving means;
In an optical biosensor provided with a sensor-side optical device having
An optical biological sensor, wherein the biological information detected by the biological state detecting means is transmitted to a base device of a transmission partner of the optical biological sensor using the sensor side light emitting means.   The optical optical sensor has a measurement mode in which a state of a living body is detected by the biological state detection unit, and a transmission mode in which information on the living body is transmitted to the base device. Optical biosensor.   The optical biosensor according to claim 1, further comprising a sensor-side contact detection unit that detects that the base device is attached.   The optical biosensor according to claim 3, wherein when it is detected that the base device is attached, the transmission mode is set.   The optical biosensor according to any one of claims 2 to 4, further comprising a mode changeover switch for switching between the measurement mode and the transmission mode.   The optical biosensor according to claim 1, further comprising a charging unit that is charged by a power supply configuration of the base device.   The optical biosensor according to claim 1, comprising two or more sensor-side light emitting means.   The light emitting biosensor according to claim 1, wherein a lens is disposed on a surface side of the sensor side light emitting means.   The light-emitting biosensor according to claim 1, wherein a translucent cover is disposed on the surface side of the sensor-side light emitting means.   The light emitting biosensor according to claim 9, wherein the cover has a visible light cut function. A base apparatus for transmitting information on the living body from the optical biological sensor according to any one of claims 1 to 10,
A base device comprising a base-side optical device section having base-side light receiving means for receiving information on the living body transmitted by the sensor-side light emitting means.   The base device according to claim 11, further comprising a base-side light emitting unit that transmits a signal to the sensor-side optical device unit.   13. The command signal for instructing transmission of the biological information from the sensor side light receiving means is transmitted to the sensor side light receiving means using the base side light emitting means. Base device.   The base device according to claim 11, further comprising a mounting structure that is mounted in a state where the optical biosensor is in contact with the base device.   The base device according to claim 14, wherein the optical biosensor is inclined when the optical biosensor is attached to the base device.   The base apparatus according to claim 14, wherein the optical biosensor is mounted horizontally with respect to the base apparatus.   The base device according to any one of claims 11 to 16, further comprising a base-side contact detection unit that transmits a detection signal to the optical biosensor when the optical biosensor is attached.   The base device according to any one of claims 11 to 17, further comprising a power supply configuration for charging a charging unit of the optical biosensor.   The base device according to claim 11, comprising two or more base side light receiving means.   The base device according to any one of claims 11 to 19, wherein the base device includes a recess into which the optical biosensor is fitted.   The base device according to claim 20, wherein the concave portion is a bottom-side concave portion corresponding to the bottom portion of the optical biosensor and / or a side-side concave portion corresponding to the sensor-side optical device portion side.   The base device according to claim 20 or 21, wherein the concave portion is a groove along a mounting direction of the optical biosensor.   The biological information collecting system according to claim 21 or 22, wherein the groove of the side surface side concave portion is further concave at the center.   The depth of the bottom side concave portion is set to a depth at which the band does not get in the way when the optical biosensor provided with the band is fitted. Base device.   The said base apparatus is provided with the base part which mounts the said optical biosensor, and the standing part set up from this base part, The one in any one of Claims 11-24 characterized by the above-mentioned. Base device.   26. The base device according to claim 25, wherein there is a step between the base portion and the standing portion.   27. The base device according to claim 25 or 26, wherein the optical biosensor having a band is configured such that the band can be fitted onto the standing portion.   The base device according to any one of claims 25 to 27, wherein a curved surface is provided on a side surface of the standing portion.   The base device according to any one of claims 11 to 28, wherein a lens is disposed on a surface side of the base side light emitting means.   The base device according to any one of claims 11 to 28, wherein a translucent cover is disposed on a surface side of the base side light emitting means.   The base device according to claim 30, wherein the cover has a visible light cutting function.   A biological information collecting system comprising: the optical biological sensor according to any one of claims 1 to 10; and the base device according to any one of claims 11 to 31.   The living body information collecting system according to claim 32, wherein the living body information transmitted by using the sensor side light emitting means is received by the base side light receiving means.   34. The biological information collection system according to claim 32 or 33, wherein a predetermined command signal transmitted using the base side light emitting means is received by the sensor side light receiving means.   35. The biological information collection according to claim 34, wherein when the command signal is transmitted by the base side light emitting means, the optical biological sensor is set to the transmission mode based on the command signal. system.   33. When the optical biosensor is mounted on the base device, the sensor-side optical device unit and the base-side optical device unit are arranged at positions facing each other. 35. The biological information collection system according to any one of -35.   When the optical biosensor is attached to the base device, the optical biosensor and the base device are fitted so that the distance and position between the light emitting means side and the light receiving means side are constant. 37. The biological information collection system according to any one of claims 32 to 36.   The biological information collection according to any one of claims 32 to 37, wherein when an infrared LED is used as the sensor side light emitting means, a visible light cut member is disposed on the surface side of the base side light receiving means. system.   The lens according to any one of claims 32 to 38, wherein when the lenses are arranged on the base side optical device unit and the sensor side optical device unit, the concave and convex portions of the lenses are fitted to each other. The biological information collection system described.   The structure which the unevenness | corrugation of a mutual cover fits when the translucent cover is arrange | positioned at the said base side optical apparatus part and the said sensor side optical apparatus part is characterized by the above-mentioned. The biological information collection system according to any one of the above.   41. The biological information collecting system according to claim 32, wherein a terminal of the base device and a terminal of the optical biological sensor are in mechanical contact with each other.   42. The biological information collection system according to claim 41, wherein a configuration in which a direction in which the optical biological sensor is mounted is defined by a shape of the terminals that are in contact with each other.   43. The biological information collection system according to any one of claims 32 to 42, comprising a configuration in which electromagnetic waves are used to transmit and receive signals between the base device and the optical biological sensor.   44. The biological information collection system according to any one of claims 32 to 43, comprising a configuration in which electric power is supplied from the base device to the optical biological sensor using electromagnetism.   When two or more sensor side light emitting means are arranged in the sensor side optical device section, the base side optical device section is provided with a base side light receiving means corresponding to each sensor side light emitting means. The biological information collection system according to any one of claims 32 to 44, wherein   The sensor side optical device unit and the base side optical device unit are provided with a plurality of pairs of the light emitting means and light receiving means, and the biological information is transmitted using the plurality of pairs of light emitting means and light receiving means. The biological information collection system according to claim 45, characterized in that it is characterized in that:   The sensor side optical device unit and the base side optical device unit are provided with a plurality of pairs of the light emitting means and light receiving means, and using a pair of the light emitting means and light receiving means, the biological information is transmitted, 46. The biological information collection system according to claim 45, wherein check information for checking the transmitted biological information is transmitted using another pair of the light emitting means and the light receiving means. A sensor communication method between the optical biosensor according to any one of claims 1 to 10 and the base device according to any one of claims 11 to 31,
A sensor communication method, wherein the biological information is transmitted to the base side light receiving means using the sensor side light emitting means.   49. The sensor communication method according to claim 48, wherein when the optical biosensor is attached to the base device, information on the living body is transmitted from the optical biosensor to the base device.   49. The biological information is transmitted from the optical biological sensor to the base device when a predetermined command signal is transmitted from the base device to the optical biological sensor. Or 49. The sensor communication method according to 49.   When the optical biosensor is attached to the base device, the optical biosensor is set to a standby mode. When a command signal is received from the base device, the optical biosensor is 51. The sensor communication method according to claim 50, wherein the biological information is transmitted to an apparatus.   When the optical biosensor is set to the standby mode by the mode change switch, the optical biosensor transmits a request signal for requesting the command signal to the base device, and receives the command signal from the base device. 52. The sensor communication method according to claim 51, wherein, in the case, the information on the living body is transmitted from the optical biological sensor to the base device.   When the optical biosensor is set to the standby mode by the mode change switch and the command signal is received from the base device, the biometric information is transmitted from the optical biosensor to the base device. 51. The sensor communication method according to claim 50, wherein:

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