JP4383134B2 - Wireless in-vivo information acquisition device - Google Patents

Description

  The present invention relates to an in-subject information acquisition device introduced into a subject, for example, a wireless in-subject information acquisition device that supplies power to each part of a swallowable capsule endoscope, and more particularly to a wireless device. The present invention relates to a wireless in-vivo information acquiring apparatus that regulates the timing of power supply.

  In recent years, in the field of endoscopes, capsule endoscopes equipped with an imaging function and a wireless function have appeared. This capsule endoscope is used for observation (examination) after being swallowed by the subject, and during the observation period until it is naturally discharged from the subject's living body, organs such as the stomach and small intestine The inside (inside the body cavity) moves with the peristaltic motion and sequentially captures images using an imaging function.

  Also, during this observation period due to movement in these organs, image data captured in the body cavity by the capsule endoscope is sequentially transmitted to an external device provided outside the subject by a wireless function such as wireless communication. Are stored in a memory provided in the external device. When the subject carries the external device having the wireless function and the memory function, the subject does not suffer any inconvenience during the observation period from swallowing the capsule endoscope until it is discharged. Action is possible. After observation, a doctor or nurse can make a diagnosis by displaying an image in the body cavity on a display means such as a display based on the image data stored in the memory of the external device.

  As this type of capsule endoscope, for example, there is a swallow type as shown in Patent Document 1. This capsule endoscope is housed in a package including a magnet before being swallowed, and this magnet suppresses power supply from a power supply device such as a battery to an electrical component such as an imaging device or a wireless device. This prevents battery drain. When the capsule endoscope is swallowed, the capsule endoscope is removed from the package, so that the capsule endoscope is not affected by the magnetic force away from the magnet, and the suppression of power supply is released. Thus, power is supplied from the battery to the above-described electrical components in the capsule endoscope, and an image is captured and transmitted.

International Publication No. 01-35813 Pamphlet

  However, in such a device, power is supplied to each electrical component before the capsule endoscope is introduced into the subject, and power is supplied to a wireless device that consumes a large amount of power, particularly at an early stage before the subject is introduced. If the supply is performed, the battery capacity may be reduced before the image is sufficiently collected in the organ that needs to be imaged, and the power supply may be stopped.

  The present invention has been made in view of the above problems, and reduces the wasteful power consumption by performing the timing of power supply to the wireless device after the capsule endoscope is introduced into the subject. It is an object of the present invention to provide a wireless in-vivo information acquiring apparatus that can accurately perform image collection and image transmission in a subject.

In order to solve the above-described problems and achieve the object, a wireless in-vivo information acquiring apparatus according to the present invention includes a capturing unit that captures an image, and a communication unit that performs communication of information between the extracorporeal device and A wireless in-vivo information acquiring apparatus that has power supply means for supplying power to each part of the wireless in-vivo information acquiring apparatus, acquires information on an image in the subject, and transmits the acquired information to the extracorporeal apparatus. A luminance detection unit that detects the luminance of the image captured by the capture unit; and a supply control unit that supplies power from the supply unit to the communication unit in accordance with a detection result of the luminance detection unit. It is characterized by that.

The wireless in-vivo information acquiring apparatus according to the present invention is the above-described invention, wherein the wireless in-vivo information acquiring apparatus further includes illuminating means for illuminating the outside, and the capturing means includes the illuminating means. Capturing the images outside and within the subject during either the lighting period or the non-lighting period, and the supply control means determines that the captured image is based on the detected luminance detection result. It is judged whether the image is outside the subject or inside the subject, and power is supplied to the communication means based on the judgment.

Further , the wireless in-vivo information acquiring apparatus according to the present invention is the above-described invention, wherein the capturing means for capturing an image, the communication means for communicating information with the extracorporeal device, and the wireless in-vivo information acquiring A wireless-type in-vivo information acquiring apparatus that acquires information on an image in a subject and transmits the information to the extracorporeal apparatus. A light amount detection unit that detects a light amount of an image, and a supply control unit that supplies power from the supply unit to the communication unit according to a detection result of the light amount detection unit.

The wireless in-vivo information acquiring apparatus according to the present invention is the above-described invention, wherein the wireless in-vivo information acquiring apparatus further includes illuminating means for illuminating the outside, and the capturing means includes the illuminating means. The images outside the subject and inside the subject in either the lighting period or the non-lighting period are captured, and the supply control means determines that the captured image is based on the detection result of the detected light amount. It is determined whether the image is outside or inside the subject, and power is supplied to the communication means based on the judgment.

Further , the wireless in-vivo information acquiring apparatus according to the present invention is the above-described invention, wherein the capturing means for capturing an image, the communication means for communicating information with the extracorporeal device, and the wireless in-vivo information acquiring A wireless-type in-vivo information acquiring apparatus that acquires information on an image in a subject and transmits the information to the extracorporeal apparatus. A light amount detection unit for detecting the light amount of the image, an adjustment unit for adjusting the detected light amount, and a supply control unit for supplying power from the supply unit to the communication unit according to an adjustment result of the adjustment unit; It is provided with.

The wireless in-vivo information acquiring apparatus according to the present invention is the above-described invention, wherein the wireless in-vivo information acquiring apparatus further includes illuminating means for illuminating the outside, and the capturing means includes the illuminating means. The images outside the subject and inside the subject in either the lighting period or the non-lighting period are captured, and the supply control means determines that the captured image is based on the adjustment result of the adjusted light amount. It is judged whether the image is outside the subject or inside the subject, and power is supplied to the communication means based on the judgment result.

Further , the wireless in-vivo information acquiring apparatus according to the present invention is the above invention, wherein the wireless in-vivo information acquiring apparatus measures time until the information acquiring apparatus reaches the examination target in the subject. The power supply control means further includes a clocking means for performing power supply from the supply means to the communication means after the clocking of the clocking means is completed.

In order to solve the above-described problems and achieve the object , the wireless in-vivo information acquiring apparatus according to the present invention includes a function execution means for executing a predetermined function set in advance, and an object in the subject. An information acquisition unit configured to be able to acquire in-subject information from a test site, a detection unit that detects light amount information relating to a light amount at the test site from an acquisition result by the information acquisition unit, and a detection result by the detection unit And a control means for controlling the drive of the function execution means.

In the wireless in-vivo information acquiring apparatus according to the present invention as set forth in the invention described above, the function executing means includes a wireless means for modulating and transmitting a signal related to in-vivo information generated by the information acquiring means. It is characterized by that.

The wireless in-vivo information acquiring apparatus according to the present invention is characterized in that, in the above invention, the information acquiring means includes a light receiving means for receiving incident light.

The wireless in-vivo information acquiring apparatus according to the present invention may further include an illuminating unit configured to emit illumination light for illuminating the test site in the above invention. Features.

Further, in the above-described invention, the wireless in-vivo information acquiring apparatus according to the present invention is configured such that the detection unit detects light amount information at the test site from a light reception result of the light receiving unit during a light emission period of the illumination unit, The control means determines whether or not the light quantity at the test site is greater than or equal to a predetermined value from the light quantity information detected by the detection means. The means is driven.

In the wireless in-vivo information acquiring apparatus according to the present invention as set forth in the invention described above, the detection means detects light quantity information at the test site from a light reception result by the light receiving means during a non-light emission period of the illumination means. The control means determines whether or not the light quantity at the test site is equal to or less than a predetermined value set in advance from the light quantity information detected by the detection means. The wireless means is driven.

The wireless in-vivo information acquiring apparatus according to the present invention further includes power supply means for storing driving power for driving the information acquiring means and the wireless means in the above invention , wherein the control means According to a detection result of the detection unit, the power supply unit includes a supply control unit that controls supply of driving power from the wireless unit to the wireless unit.

In the wireless in-vivo information acquiring apparatus according to the present invention as set forth in the invention described above, the light receiving means captures a light image reflected from the test site illuminated by the illuminating means and generates an image signal. It is an imaging means.

The wireless in-vivo information acquiring apparatus according to the present invention is characterized in that, in the above invention, the detection means detects luminance information as the light amount information from an image signal generated by the imaging means.

  The wireless in-vivo information acquiring apparatus according to the present invention determines whether a capsule endoscope exists outside or within the subject according to the luminance of the captured image data, Since the timing of power supply to the wireless device of the in-subject information acquisition apparatus is performed after the capsule endoscope is introduced into the subject, the wasteful power consumption is reduced, and the image collection in the subject is performed. There is an effect that image transmission can be performed accurately.

  The wireless in-vivo information acquiring apparatus according to the present invention determines whether the capsule endoscope exists outside or within the subject according to the amount of light of the imaged image data. Since the timing of power supply to the wireless device of the in-subject information acquisition apparatus is performed after the capsule endoscope is introduced into the subject, the wasteful power consumption is reduced, and the image collection in the subject is performed. There is an effect that image transmission can be performed accurately.

  The wireless in-vivo information acquiring apparatus according to the present invention determines whether the capsule endoscope exists outside or within the subject according to the detected light amount adjustment result, Since the timing of power supply to the wireless device of the in-subject information acquisition apparatus is performed after the capsule endoscope is introduced into the subject, the wasteful power consumption is reduced, and the image collection in the subject is performed. There is an effect that image transmission can be performed accurately.

  Embodiments of a wireless in-vivo information acquiring apparatus according to the present invention will be described below in detail with reference to the drawings of FIGS. In the following drawings, the same components as those in FIG. 1 are denoted by the same reference numerals for convenience of explanation. The present invention is not limited to these embodiments, and various modifications can be made without departing from the gist of the present invention.

(Embodiment 1)
FIG. 1 is a system conceptual diagram showing a concept of a capsule endoscope system using a power supply device according to the present invention. 1, this capsule endoscope system is a swallowable capsule endoscope (hereinafter referred to as “pill”) as a wireless in-vivo information acquiring device introduced into a body cavity of a subject 10. ) 1 and an external device 2 which is an external device which is arranged outside the subject 10 and wirelessly communicates various information with the pill 1.

  The pill 1 irradiates, for example, a test site in the body cavity of the subject 10 with a light emitting element (LED) or the like as an illuminating means, and charges the image (in-subject information) in the body cavity as reflected light An imaging means (intra-subject information acquisition means) having an imaging function for imaging with a light receiving means such as an element (CCD) or a CMOS type imaging camera, and modulating the captured image signal into an RF signal and transmitting from the transmitting antenna Wireless means having a wireless function for wireless transmission. In addition, the pill 1 further includes a receiving antenna that receives a radio signal from the outside, so that it is possible to control the driving of the above-described LED, CCD, and the like based on various control signals from an external device, for example. .

  The external device 2 is disposed on clothing worn by the subject, and receives a receiving antenna that receives the above-described RF signal from the pill, and a transmitting antenna that transmits the various control signals to the pill with an RF signal, It is comprised from the extracorporeal unit for communicating with the pill 1 via this receiving and transmitting antenna (not shown).

  FIG. 2 is a configuration diagram showing the configuration of the first embodiment of the pill according to the present invention. By the way, the normal wireless in-vivo information acquiring device 1 is a wireless device that communicates RF signal radio waves with an imaging device 11 that includes a CCD or CMOS type imaging camera, and an illumination device 12 that includes an LED that emits illumination light. The power supply device 14 includes a device 13, a battery (or battery) that supplies power to these electrical components, and a reed switch 15 provided between the power supply device 14 and each electrical component. The reed switch 15 is turned on / off by suppression or release from a magnetic member (magnet) 16 provided in a package that holds the pill 1 before use.

  In this configuration, the reed switch 15 is configured to be turned on / off by, for example, separation or approach of the magnet 30, and the reed switch 15 is moved from the initial state held by the package to the vicinity of the reed switch 15. By separating the provided magnets 30, they are turned on, and once they are turned on, this state is maintained, so that power is continuously supplied from the battery 14 to each part of the electrical component. The reed switch 15 can also be configured to be turned on / off by the approach or separation of the magnet 30.

  On the other hand, the pill according to the first embodiment shown in FIG. 2 connects the lighting device 12 and the wireless device 13 to the battery 14 via the reed switch 15 and the sub switch 16, and turns the sub switch 16 on / off. The determination unit 17 and the latch circuit 18 that are turned off are provided. That is, in this embodiment, even if the reed switch 15 is turned on, the LED 12 is configured to set the imaging device 11 to capture an image in a standby state where the LED 12 is not lit. In this embodiment, it is assumed that the pill 1 is swallowed under illumination such as a fluorescent lamp. In this state, a bright image is obtained, and when the pill is swallowed into the subject thereafter, the pill 1 is dark indicating the inside of the body cavity. An image will be obtained.

  The determination unit 17 is connected so that power is supplied from the power supply device 14 when the reed switch 15 is turned on. When an image is picked up by the image pickup device 11, the determination unit 17 relates to the amount of light at the site to be examined. As the information, the brightness (luminance) of the image data is obtained. Here, as the obtained luminance, for example, either an average value or a peak value of the luminance of the entire image is detected. Then, the determination unit 17 determines that the pill has been swallowed into the subject when the detected luminance is equal to or less than a predetermined value (information that the image is dark), and outputs a control signal to control the operation of the latch circuit 18. Then, the sub switch 16 is turned on. In other words, the determination unit 17 drives a detection unit that detects light amount information regarding the light amount at the region to be examined from the image data, and a function execution unit that executes a predetermined function such as the LED 12 or the wireless device 13 according to the detection result. Or a function as a control means for controlling power supply.

  The latch circuit 18 is composed of, for example, a D-type flip-flop. Once the control signal is input from the determination unit 17, the latch circuit 18 turns on the sub switch 16, and thereafter keeps the on state so that the LED 12 and the LED 12 are wirelessly connected. The power supply of the apparatus 13 is maintained.

  Next, the power supply operation of this wireless in-vivo information acquiring apparatus will be described using the flowchart of FIG. In FIG. 3, when the pill 1 is removed from the package, the pill 1 is not affected by the magnetic force from the magnet 30 and the reed switch 15 is turned on (step 101). When the reed switch 15 is turned on, power is supplied to each electrical component (the imaging device 11 and the determination unit 17 in this embodiment) except for the LED 12 and the wireless device 13 (step 102), and the imaging device 11 performs an imaging operation. And the captured image data is output to the determination unit 17 (step 103).

  The determination unit 17 detects the luminance (for example, average luminance) of the input image data, and determines whether the detected luminance is equal to or less than a predetermined value (step 104). Here, when image data having a luminance equal to or lower than a predetermined value is input, the determination unit 17 determines that the pill 1 has entered the body cavity, and controls the sub switch 16 to be turned on (step 105). As a result, power is supplied from the battery 14 to the LED 12 and the wireless device 13 (step 106), and imaging within the body cavity by illumination of the LED 12 and transmission of the captured image data to the outside become possible.

  Thus, in this embodiment, it is assumed that the pill is used in a bright room, and whether or not the pill is present in the body cavity is detected according to the brightness of the image data captured when the LED is turned off, and then transmitted to the wireless device. The power supply timing to the wireless device can be determined after the capsule endoscope is reliably introduced into the subject, thereby reducing power consumption within the subject. Image acquisition and image transmission can be performed accurately.

  By the way, in the wireless in-vivo information acquiring apparatus of the first embodiment described above, it is conceivable that the sub switch is turned on at the moment when it is introduced into the mouth of the subject. Instead, there is a case where it is desired to supply power to the wireless device 13 in a state where the wireless device 13 is reliably introduced into the organ to be examined.

  FIG. 4 is a block diagram showing another configuration of the first embodiment devised in response to such a request. 4 is different from FIG. 2 in that a timer 19 is connected to the determination unit 17 and power is supplied to the wireless device 13 after a certain period of time after the brightness of the image data falls below a predetermined value. Is to be transmitted.

  For example, when transmission of image data is started after the pill is introduced into the stomach, a predetermined time from when the luminance reaches a predetermined value or less until the pill reaches the stomach is set in the timer 19, When the luminance of the image data becomes equal to or lower than a predetermined value, the determination unit 17 activates the timer 19 and controls the latch circuit 18 to turn on the sub switch 16 after a predetermined time has elapsed. As a result, when the pill 1 is reliably introduced into the stomach to be examined, power is supplied from the battery 14 to the LED 12 and the wireless device 13, and imaging of the stomach interior by the illumination of the LED 12 and the outside of the captured image data Will be sent to.

  In this embodiment, the description has been made assuming that the pill is used in a bright room. However, the present invention is not limited to this, and the present invention can be applied even when the pill is used in a dim room.

  Moreover, in this invention, it is also possible to detect the brightness | luminance of an image in the state which lighted LED.

(Embodiment 2)
FIG. 5 is a block diagram showing the configuration of the second embodiment of the pill according to the present invention. In this embodiment, it is assumed that the room in which the pill 1 is swallowed is dark, and the actual endoscope room is often dark. In such a case, depending on the degree of darkness in the room, it may be difficult to determine whether the subject is inside or outside the subject 10 even if imaging is performed with the LED turned off. Therefore, in this embodiment, as shown in FIG. 5, the LED is connected via the reed switch 15 so that the pill 1 is lit when swallowed to enable imaging outside the subject.

  The actual imaging device 11 is provided with an aperture mechanism for automatic exposure that adjusts the amount of light input to the equipped camera. When the pill is outside the subject, the illumination light of the LED 12 is difficult to reach the subject. Since the image is dark, imaging is performed with the received light amount increased with the aperture widened. In addition, when the pill is in the subject, the body cavity as the subject is in close contact with each other, resulting in a bright image. Therefore, imaging is performed with the aperture reduced to reduce the amount of received light.

  Therefore, in this embodiment, when the diaphragm of the imaging device 11 is continuously narrowed for a certain period of time compared to the previous widened state, the determination unit 17 determines that a pill has been introduced into the subject. Then, the latch circuit 18 is controlled to turn on the sub switch 16.

  In this embodiment, since the normal imaging operation is performed at the detection stage described above, image data is obtained. However, even if this image is discarded as necessary, it is stored in a memory provided in the imaging device 11. It may be set so that the power is stored and transmitted to the external device after the power is supplied to the wireless device. For example, if the subject to be examined is an organ such as the stomach or small intestine, the image from the time the pill is swallowed to the stomach is discarded, and if the esophagus is also to be examined, the image after the pill has been swallowed is discarded. In this embodiment, it is also possible to transmit the image pressing data after the wireless device is activated by storing in the memory.

  As described above, in this embodiment, it is assumed that the pill is used in a dark room, and according to the open / closed state of the diaphragm of the imaging device when the LED is lit, it is detected whether the pill is present in the body cavity. The power supply timing to the wireless device can be determined after the capsule endoscope is reliably introduced into the subject, thereby reducing wasteful power consumption and reducing the power supply. Image collection and image transmission within the specimen can be performed accurately.

  By the way, in the wireless in-vivo information acquiring apparatus of the first embodiment described above, it is also possible to detect the open / close state of the diaphragm instead of the luminance of the image data. In this case, when the LED is turned off, the inside of the body cavity is completely dark, so the open state of the diaphragm becomes the limit. Therefore, contrary to the second embodiment, when the diaphragm of the imaging device 11 is opened for a certain period of time compared to the previous diaphragm, the judgment unit 17 introduces a pill into the subject. Thus, the sub-switch 16 can be turned on by controlling the latch circuit 18 based on the determination.

(Embodiment 3)
FIG. 6 is a block diagram showing a configuration of Embodiment 3 of the wireless in-vivo information acquiring apparatus shown in FIG. In this embodiment, the light quantity sensor 20 is used as a light receiving means (in-subject information acquisition means) to detect the light quantity of reflected light from the subject illuminated by the LED 12. In this case, assuming that the pill is used in a dark room, for example, as in the second embodiment, when the pill is outside the subject, the illumination light of the LED 12 is difficult to reach the subject and the detected light amount is small. Thus, when the pill is in the subject, the body cavity as the subject is in close contact, and the amount of light detected is increased.

  Thus, in this embodiment, when the amount of reflected light from the subject inside (inside the body cavity) and outside (inside the subject) of the subject 10 exceeds a predetermined value, the determination unit 17 introduces a pill into the subject. Judgment is made and the latch circuit 18 is controlled to turn on the sub switch 16.

  As described above, in this embodiment, it is assumed that the pill is used in a dark room, and whether or not the pill is present in the body cavity is detected wirelessly according to the amount of reflected light from the subject illuminated by the LED. Since the power supply to the device is determined, the power supply timing to the wireless device can be performed after the capsule endoscope is reliably introduced into the subject, thereby reducing the power consumption and the subject. Image collection and transmission can be performed accurately. Further, after the detection, control may be performed so as to perform a normal imaging operation.

  In this embodiment, it is also possible to use an imaging camera equipped in the imaging apparatus as a light quantity sensor. In this case, the amount of reflected light from the subject illuminated by the LED is detected without adjusting the aperture and processing the captured image. In this case as well, the same effects as in the third embodiment can be obtained, and since existing equipment is used, an increase in the number of parts and production cost can be suppressed.

  In this embodiment, it is also possible to detect the amount of reflected light with the LED turned off. Furthermore, the LED is turned on during a lighting period and a non-lighting period of a predetermined length, and during one of the periods, information on the amount of light both outside and within the subject is acquired, so that the inside of the subject is obtained. It may be detected that a pill has been introduced.

  In the second and third embodiments, the timer shown in FIG. 4 may be provided so that power is supplied to the wireless device after the pill has been reliably introduced into the organ to be examined. is there.

It is a system conceptual diagram which shows the concept of the capsule endoscope system using the electric power supply apparatus concerning this invention. FIG. 2 is a block diagram showing a configuration of a wireless type in-vivo information acquiring apparatus shown in FIG. 1 according to Embodiment 1; 3 is a flowchart for explaining a power supply operation of the wireless in-vivo information acquiring apparatus shown in FIG. FIG. 7 is a block diagram showing another configuration of the wireless in-vivo information acquiring apparatus shown in FIG. 1 according to the first embodiment. FIG. 6 is a block diagram showing a configuration of a second embodiment of the wireless in-vivo information acquiring apparatus shown in FIG. 1. FIG. 6 is a block diagram showing a configuration of a third embodiment of the wireless in-vivo information acquiring apparatus shown in FIG. 1.

Explanation of symbols

1 Wireless in-vivo information acquisition device (pill)
2 External device 10 Subject 11 Imaging device 12 Illumination device (LED)
13 Wireless device 14 Power supply (battery)
15 Reed Switch 16 Sub Switch 17 Sub Switch 18 Latch Circuit 19 Timer 20 Light Sensor 30 Magnet

Claims (15)

A capturing unit that captures an image; a communication unit that communicates information with an extracorporeal device; and a supplying unit that supplies power to each part of the wireless in-vivo information acquiring device. In a wireless in-vivo information acquiring device that acquires image information and transmits it to the extracorporeal device,
Luminance detecting means for detecting the luminance of the image captured by the capturing means;
A wireless in-vivo information acquiring apparatus comprising: a supply control unit configured to supply power from the supply unit to the communication unit according to a detection result of the luminance detection unit. The wireless in-vivo information acquiring apparatus further includes illumination means for illuminating the outside,
The capturing means captures images outside and within the subject during either the lighting period or non-lighting period of the illumination means,
The supply control means determines from the detection result of the detected luminance whether the captured image is outside the subject or inside the subject, and supplies power to the communication means based on the determination. The wireless in-vivo information acquiring apparatus according to claim 1, wherein: A capturing unit that captures an image; a communication unit that communicates information with an extracorporeal device; and a supplying unit that supplies power to each part of the wireless in-vivo information acquiring device. In a wireless in-vivo information acquiring device that acquires image information and transmits it to the extracorporeal device,
A light amount detecting means for detecting the light amount of the image captured by the capturing means;
A wireless in-vivo information acquiring apparatus comprising: a supply control unit configured to supply power from the supply unit to the communication unit according to a detection result of the light amount detection unit. The wireless in-vivo information acquiring apparatus further includes illumination means for illuminating the outside,
The capturing means captures images outside and within the subject during either the lighting period or non-lighting period of the illumination means,
The supply control means determines from the detection result of the detected light amount whether the captured image is outside the subject or inside the subject, and supplies power to the communication means based on the determination. The wireless in-vivo information acquiring apparatus according to claim 3, wherein: A capturing unit that captures an image; a communication unit that communicates information with an extracorporeal device; and a supplying unit that supplies power to each part of the wireless in-vivo information acquiring device. In a wireless in-vivo information acquiring device that acquires image information and transmits it to the extracorporeal device,
A light amount detecting means for detecting the light amount of the image captured by the capturing means;
Adjusting means for adjusting the detected light amount;
A wireless in-vivo information acquiring apparatus comprising: a supply control unit configured to supply power from the supply unit to the communication unit in accordance with an adjustment result of the adjustment unit. The wireless in-vivo information acquiring apparatus further includes illumination means for illuminating the outside,
The capturing means captures images outside and within the subject during either the lighting period or non-lighting period of the illumination means,
The supply control unit determines whether the captured image is an image outside or within the subject from the adjustment result of the light amount adjusted by the adjustment unit, and based on the determination result, the communication unit The wireless in-vivo information acquiring apparatus according to claim 5, wherein power is supplied to the device. The wireless in-vivo information acquiring device further includes a time measuring unit that measures time until the information acquiring device reaches an examination target in the subject,
The wireless control subject according to any one of claims 1 to 6, wherein the supply control unit supplies power from the supply unit to the communication unit after the timing of the timing unit is finished. Information acquisition device. Information acquisition means configured to be able to acquire in-subject information from a test site in the subject;
A wireless means for modulating and wirelessly transmitting a signal related to in-vivo information generated by the information acquisition means;
Detection means for detecting light quantity information relating to the light quantity in the test site from the acquisition result by the information acquisition means;
Control means for controlling the driving of the wireless means according to the detection result of the detecting means;
A wireless in-vivo information acquiring apparatus comprising: 9. The wireless in-vivo information acquiring apparatus according to claim 8 , wherein the information acquiring unit includes a light receiving unit that receives incident light. The wireless in-vivo information acquiring apparatus according to claim 9 , further comprising illumination means configured to emit illumination light for illuminating the site to be examined. The detection means detects light amount information at the test site from a light reception result by the light receiving means during a light emission period of the illumination means,
The control means determines whether or not the light quantity at the test site is greater than or equal to a predetermined value from the light quantity information detected by the detection means. 11. The wireless in-vivo information acquiring apparatus according to claim 10 , wherein the means is driven. The detection means detects light amount information in the test site from a light reception result by the light receiving means in a non-light emission period of the illumination means,
The control means determines from the light quantity information detected by the detection means whether or not the light quantity at the test site is less than or equal to a predetermined value set in advance. 11. The wireless in-vivo information acquiring apparatus according to claim 10 , wherein the means is driven. Further comprising power supply means for storing drive power for driving the information acquisition means and the wireless means,
It said control means in response to said detection result by the detecting means, any one of claims 8 to 12, characterized in that it comprises a supply control means for controlling the supply of driving power from said power supply means to the radio means A wireless in-vivo information acquiring apparatus according to claim 1. The said light-receiving means is an imaging means which images the light image reflected from the said test site | part illuminated by the said illumination means, and produces | generates an image signal, It is any one of Claims 11-13 characterized by the above-mentioned. The wireless in-vivo information acquiring apparatus described. 15. The wireless in-vivo information acquiring apparatus according to claim 14 , wherein the detection unit detects luminance information as the light amount information from an image signal generated by the imaging unit.