JP6396933B2 - Information derivation system, optical transmission / reception system, and communication system - Google Patents

Description

  The present invention relates to optical axis adjustment.

  In an optical wireless communication network, it is necessary to adjust the optical axis so that light transmitted from a transmitter is appropriately incident on a receiver. Several documents disclose methods for adjusting the optical axis.

  For example, Patent Document 1 discloses a method of performing a predetermined optical axis adjustment according to the intensity received by a four-divided photodetector (photodetector).

  Patent Document 2 adjusts the direction of light emission based on the intensity of the reflected light of the light emitted from the device reflected by the corner cube in the opposite optical axis adjustment device, and uses a four-divided photodetector. A method of readjustment is disclosed.

  Patent Document 3 discloses a method of receiving reflected light with respect to light emitted from the device and adjusting the optical axis based on the wave number of the received reflected light.

  Further, the direction adjustment device disclosed in Patent Document 4 emits the first light based on the range of the second light (stimulated emission light) that can be received from the first device in response to the first light. Find one direction. And the direction adjustment apparatus which patent document 4 discloses calculates | requires the optical axis of 1st light based on the intensity | strength and 2nd light of 2nd light.

  Patent Document 5 discloses a method in which a slave unit adjusts its optical axis based on imaging data of a slave unit of guide light transmitted from the master unit.

Japanese Patent No. 3812817 JP 2000-286799 A Japanese Patent Laid-Open No. 01-302926 Japanese Patent Laying-Open No. 2015-122737 JP 2006-229734 A

  The quadrant photodetector used by the techniques disclosed in Patent Literature 1 and Patent Literature 2 includes four photodetectors. The four-divided photodetector cannot detect the direction in which the light enters when the sensitivity of detecting the light of the four photodetectors is different. Therefore, the sensitivity of detecting the light of the four photodetectors needs to be almost equal. Therefore, the quadrant detector is expensive. Furthermore, since the sensitivity of each of the four photodetectors is likely to be different from each other due to deterioration over time, the four-divided photodetector is likely to misrecognize the optical axis.

  Further, the method disclosed in Patent Document 3 requires a device for counting wave numbers. A device that counts the wave number is expensive.

  Since the method disclosed in Patent Document 4 uses stimulated emission light, there is a possibility of malfunction due to reflection from an unexpected device and the influence of stimulated emission light.

  In the method disclosed in Patent Document 5, the slave unit adjusts its own optical axis based on imaging data of the guide light transmitted by the master unit, but the master unit does not adjust the optical axis. Therefore, the method disclosed in Patent Document 6 cannot perform optical axis adjustment with high accuracy.

  An object of the present invention is to provide an information derivation system and the like that can stably and inexpensively derive optical axis adjustment information for performing optical axis adjustment with high accuracy.

  The information deriving system of the present invention is an information deriving system for deriving information for bringing the first optical axis that is the optical axis of the first light close to the second optical axis that is the optical axis of the second light. is there. Here, the first light is light emitted by the first light emitting device. The second light is light emitted from the second light emitting device.

  The information deriving system of the present invention is a first information deriving device for deriving first optical axis adjustment information, which is information for adjusting the first optical axis, and information for adjusting the second optical axis. A second information deriving device for deriving second optical axis adjustment information.

  The first information deriving device and the second information deriving device are connected by a communication line.

  The first information deriving device includes a first light emitting unit that emits third light, and a first imaging unit that images the fourth light emitted from the second information deriving device.

  The second light emitting device includes a second light emitting unit that emits the fourth light, and a second imaging unit that images the third light.

  The first information deriving device adjusts the first optical axis by adjusting an emission angle of the third light by the first light emitting unit depending on how the third light is imaged by the second imaging unit. Deriving information.

  The second information deriving device adjusts the second optical axis by adjusting an emission angle of the fourth light by the second light emitting unit according to how the fourth image is captured by the first imaging unit. Deriving information.

  The information deriving system of the present invention can stably and inexpensively derive optical axis adjustment information for performing high-precision optical axis adjustment.

It is a conceptual diagram showing the example of a structure of the information derivation system of 1st embodiment. It is a conceptual diagram showing the structural example of a direction detection part. It is an image figure showing the structural example of a direction adjustment part. It is a conceptual diagram showing the structural example of an AZ direction adjustment part. It is a conceptual diagram showing the structural example of an EL direction adjustment part. It is a conceptual diagram showing the example of a structure of an imaging part. It is a conceptual diagram showing the example of a processing flow of the process which the information derivation system of 1st embodiment performs. It is a conceptual diagram (the 1) showing the example of a processing flow of the process which derives | leads-out the adjustment angle of a 1st direction. It is a conceptual diagram (the 2) showing the example of a processing flow of the process which derives | leads-out the adjustment angle of a 1st direction. It is a conceptual diagram (the 3) showing the example of a processing flow of the process which derives | leads-out the adjustment angle of a 1st direction. It is a conceptual diagram (the 4) showing the example of a processing flow of the process which derives | leads-out the adjustment angle of a 1st direction. It is an image figure showing the specific example of operation | movement of the information derivation system of 1st embodiment (the 1). It is an image figure showing the specific example of operation | movement of the information derivation system of 1st embodiment (the 2). It is an image figure showing the specific example of operation | movement of the information derivation system of 1st embodiment (the 3). It is an image figure showing the specific example of operation | movement of the information derivation system of 1st embodiment (the 4). It is an image figure (the 5) showing the specific example of operation | movement of the information derivation system of 1st embodiment. It is an image figure showing the specific example of operation | movement of the information derivation system of 1st embodiment (the 6). It is an image figure showing the specific example of operation | movement of the information derivation system of 1st embodiment (the 7). It is an image figure (the 8) showing the specific example of operation | movement of the information derivation system of 1st embodiment. It is an image figure (the 9) showing the specific example of operation | movement of the information derivation system of 1st embodiment. It is an image figure (the 10) showing the specific example of operation | movement of the information derivation system of 1st embodiment. It is an image figure (the 11) showing the specific example of operation | movement of the information derivation system of 1st embodiment. It is an image figure showing the specific example of operation | movement of the information derivation system of 1st embodiment (the 12). It is an image figure (the 13) showing the specific example of operation | movement of the information derivation system of 1st embodiment. It is a conceptual diagram showing the example of a structure of the optical transmission / reception system of 2nd embodiment. It is a conceptual diagram showing the structural example of an optical transmission / reception part. It is a conceptual diagram showing the structural example of a fixing | fixed part. It is a conceptual diagram showing the example of a structure of a to-be-adjusted part. It is a conceptual diagram showing the example of a processing flow of the process which the transmission / reception system of 2nd embodiment performs. It is a conceptual diagram showing the example of a structure of the optical transmission / reception apparatus of 3rd embodiment. It is a conceptual diagram showing the structural example of the communication system of 4th embodiment. It is a conceptual diagram showing the example of a structure of the transmission / reception processing apparatus of 4th embodiment. It is a conceptual diagram showing the minimum structure of the information derivation system of this invention.

<First embodiment>
The first embodiment is an embodiment related to an information derivation system for deriving optical axis adjustment information, which is information that can be used for optical axis adjustment.
[Configuration and operation]
FIG. 1 is a conceptual diagram illustrating a configuration of an information derivation system 13a that is an example of the information derivation system according to the first embodiment.

  The information deriving system 13a includes an information deriving device 125a and an information deriving device 125b.

  The information deriving device 125a includes a direction detection unit 121a and a control calculation unit 131a.

  The information deriving device 125b includes a direction detection unit 121b and a control calculation unit 131b.

  The direction detection unit 121a includes a light emitting unit 150a and an imaging unit 140a.

  The direction detection unit 121b includes a light emitting unit 150b and an imaging unit 140b.

  The control calculation unit 131a and the control calculation unit 131b are in a state where communication is possible via the communication line 155a.

  The light emitting unit 150a emits light 175c in a certain direction.

  The light emitting unit 150b emits light 175b in a certain direction.

  The imaging unit 140a images the light 175b emitted from the light emitting unit 150b. Then, the imaging unit 140a sends the imaging information to the control calculation unit 131b of the information deriving device 125b through the control calculation unit 131a and the communication line 155a. The control calculation unit 131b adjusts the emission angle of the light 175b emitted from the light emitting unit 150b.

  The direction detection unit 121a and the direction detection unit 121b repeat the above operation, and the emission angle of the light 175b emitted by the light emitting unit 150b of the direction detection unit 121b so that the predetermined light reception of the light 175b emitted by the light emission unit 150b is performed. Adjust.

  The imaging unit 140b images the light 175c emitted from the light emitting unit 150a. Then, the imaging unit 140b sends imaging information to the control calculation unit 131a of the direction detection unit 121a through the communication line 155a. The control calculation unit 131a adjusts the emission angle of the light 175c emitted from the light emitting unit 150a.

  The direction detection unit 121a and the direction detection unit 121b repeat the above-described operation, and the emission angle of the light 175c emitted by the light emitting unit 150a of the direction detection unit 121a so that predetermined light reception of the light 175c emitted by the light emission unit 150a is performed. Adjust.

  The control calculation unit 131a uses the information on the emission angle of the light 175c emitted from the light emitting unit 150a adjusted by itself to derive the angle at which the light emitting device 326a should adjust the optical axis. The control calculation unit 131a outputs the derived information including the angle at which the light emitting device 326a should adjust the optical axis to the light emitting device 326a.

  The control calculation unit 131b uses the information on the emission angle of the light 175b emitted from the light emitting unit 150b adjusted by itself to derive the angle at which the light emitting device 326b should adjust the optical axis. The control calculation unit 131b outputs the derived information including the angle at which the light emitting device 326b should perform the optical axis adjustment to the light emitting device 326b.

  The light emitting device 326a emits light 175fa having the first optical axis. The direction of the first optical axis has a correlation with the direction in which the direction detection unit 121a outputs the light 175c. The light emitting device 326a adjusts the first optical axis based on the information sent from the control calculation unit 131a including the angle at which the optical axis of the light emitting device 326a should be adjusted.

  The light emitting device 326b emits light 175fb having the second optical axis. The direction of the second optical axis is correlated with the direction in which the direction detection unit 121b outputs the light 175b. The light emitting device 326b adjusts the second optical axis based on information including the angle at which the optical axis of the light emitting device 326b to be sent from the control calculation unit 131b is to be adjusted.

  By adjusting the first optical axis by the light emitting device 326a and adjusting the second optical axis by the light emitting device 326b, the first optical axis and the second optical axis are adjusted to approach each other.

  Each of the light emitting unit 150a and the light emitting unit 150b may include a plurality of sub light emitting units.

  In addition, the direction of light emitted from each of the light emitting unit 150a and the light emitting unit 150b may be a plurality of directions.

  FIG. 2 is a conceptual diagram illustrating the configuration of the direction detection unit 121, which is an example of the direction detection units 121a and 121b. FIG. 2A is a front view of the direction detection unit 121. FIG. 2B is a cross-sectional view assuming that the direction detection unit 121 is cut along a line 199a shown in FIG. FIG. 2C is a cross-sectional view assuming a case where the direction detection unit 121 is cut along a line 199b shown in FIG.

  The direction detection unit 121 includes a direction adjustment unit 161 and a direction adjusted unit 126.

  The direction-adjusted unit 126 includes an imaging unit 141, sub-light emitting units 151, 152, 153, and 154, and a support unit 171.

  The sub light emitting unit 151, the sub light emitting unit 152, the sub light emitting unit 153, the sub light emitting unit 154, and the imaging unit 141 are fixed to each other by a support unit 171. The direction adjusted portion 126 is fixed to the installation surface 145 of the direction adjusting portion 161.

  The direction adjusting unit 161 can incline its installation surface 145 in the direction of the arrow 194a shown in FIG. 2B and the direction of the arrow 194b shown in FIG. When the installation surface 145 is inclined, the direction adjusted portion 126 fixed to the installation surface 145 is inclined as the installation surface 145 is inclined.

  The sub light emitting unit 151 emits light. The light emitted from the sub-light emitting unit 151 is diffused light, and is mainly emitted between the arrows 193a and 193c. The center of the light emitted by the sub-light emitting unit 151 (represented by the arrow 193b) is the normal direction of the surface (represented by the line 198m) representing the front of the direction adjusted portion 126 represented by the line 198a and the line 198b. .) And a predetermined angle. However, the predetermined angle includes a case where the angle is zero.

  The sub light emitting unit 152 emits light. The light emitted from the sub light emitting unit 152 is diffused light, and is mainly emitted between the arrows 193d and 193f. The center of the light emitted by the sub-light emitting unit 152 (represented by the arrow 193e) is the normal direction of the surface (represented by the line 198n) representing the front of the direction adjusted portion 126 represented by the line 198a and the line 198b. .) And a predetermined angle. However, the predetermined angle includes a case where the angle is zero.

  The angle formed by the arrow 193b and the line 198m and the angle formed by the arrow 193e and the line 198n are equal in size and set in opposite directions.

  The sub light emitting unit 153 emits light. The light emitted from the sub light emitting unit 153 is diffused light, and is mainly emitted between the arrow 193g and the arrow 193i. The center of light emitted by the sub-light emitting unit 153 (represented by the arrow 193h) is the normal direction of the surface (represented by the line 198o) representing the front of the direction adjusted portion 126 represented by the line 198a and the line 198b. .) And a predetermined angle. However, the predetermined angle includes a case where the angle is zero.

  The sub light emitting unit 154 emits light. The light emitted from the sub light emitting unit 154 is diffused light, and is mainly emitted between the arrow 193j and the arrow 193l. The center of the light emitted by the sub-light emitting unit 154 (represented by the arrow 193k) is the normal direction of the surface (represented by the line 198p) representing the front of the direction adjusted portion 126 represented by the line 198a and the line 198b. .) And a predetermined angle. However, the predetermined angle includes a case where the angle is zero.

  As the sub light emitting units 151 to 154, typically, LEDs (light emitting diodes) can be used.

  The angle formed by the arrow 193h and the line 198o and the angle formed by the arrow 193k and the line 198p are equal in size and set in opposite directions.

  The imaging unit 141 can capture an image between the line 198q and the line 198r illustrated in FIG. 2B and between the line 198s and the line 198t illustrated in FIG. .

  The distances between the points 51a, 51b, 51c, and 51d shown in FIG. 2A and the point 51e are substantially equal to each other. Here, the points 51a, 51b, 51c, 51d, and 51e are the centers of the sub-light emitting units 151, 154, 152, and 153 and the imaging unit 141, assuming that the direction detection unit 121 is viewed from the front in this order. .

  A line connecting the points 51a and 51c and a line connecting the points 51b and 51d both pass through the point 51e.

  Furthermore, the angle formed by the line connecting the points 51a and 51c and the line connecting the points 51b and 51d is about 90 degrees.

  FIG. 3 is an image diagram illustrating an example of the direction adjustment unit 161 illustrated in FIG. 2.

  The direction adjustment unit 161 includes an AZ direction adjustment unit 181 and an EL direction adjustment unit 191. Here, AZ refers to azimuth, and EL refers to elevation.

  The lower surface 144a of the EL direction adjusting unit 191 (the surface opposite to the installation surface 145 of the EL direction adjusting unit 191) is fixed to the installation surface 145b of the AZ direction adjusting unit 181.

  And the AZ direction adjustment part 181 can rotate the installation surface 145b of the self in the direction shown by the arrow 193p with respect to the lower surface 144b of the self. When the installation surface 145b rotates, the EL direction adjustment unit 191 having the lower surface 144a fixed to the installation surface 145b rotates together with the installation surface 145b.

  The EL direction adjusting unit 191 can tilt the installation surface 145 in the direction of the arrow 193o with respect to the lower surface 144a.

  As described above, the direction adjusting unit 161 can tilt the installation surface 145 in the direction represented by the arrow 193o in a state where the EL direction adjusting unit 191 is rotated to the predetermined position represented by the arrow 193p.

  FIG. 4 is a conceptual diagram illustrating a configuration example of the AZ direction adjustment unit 181. 4A is a diagram assuming a case where the AZ direction adjusting unit 181 is viewed from the installation surface 145b side, and FIG. 4B is a diagram illustrating the AZ direction adjusting unit 181 with an arrow illustrated in FIG. It is the figure which assumed the case where the direction of 192a was seen.

  The AZ direction adjustment unit 181 includes a support unit 171c, a turntable receiver 205a, a turntable 204a, and a drive unit 201a.

  The lower surface 144c of the rotary base 205a and the drive unit 201a are fixed to the upper surface 143b of the support portion 171c.

  A turntable 204a is installed above the turntable receiver 205a.

  An insertion portion 206a having the shape shown in FIG. 4 is formed near the center of the lower surface 144d of the turntable 204a.

  Further, a receiving hole 208a having a shape as shown in FIG. 4 is formed on the upper surface 143c of the turntable receiver 205a.

  The insertion portion 206a of the turntable 204a is inserted into the receiving hole 208a of the turntable receiver 205a. In this state, the insertion portion 206a is unlikely to be detached from the receiving hole 208a, and the insertion portion 206a can rotate in the circumferential direction of the shaft of the insertion portion 206a within the receiving hole 208a. Therefore, the turntable 204a can rotate in the circumferential direction without detaching from the turntable receiver 205a.

  The drive unit 201a is connected to a device (not shown) that supplies power to the drive unit 201a. And the drive part 201a can rotate the gearwheel 202a connected to the axis | shaft 203a with which self is provided, and the axis | shaft 203a.

  The drive unit 201a is installed so that gear teeth connected to the drive unit 201a mesh with teeth (not shown) installed near the lower surface 144d of the side surface of the turntable 204a. And the drive part 201a can rotate the turntable 204a by rotating the gearwheel 202a. Further, the drive unit 201a can stop the rotation at a predetermined rotation position of the turntable 204a. Thereby, the drive part 201a can set the turntable 204a to a predetermined | prescribed rotation position.

  FIG. 5 is a conceptual diagram illustrating a configuration example of the EL direction adjustment unit 191. FIG. 5A is a top view of the EL direction adjustment unit 191. FIG. 5B is a diagram assuming a case where the EL direction adjustment unit 191 is viewed in the direction of the arrow 192c illustrated in FIG. FIG. 5C is a diagram assuming that the EL direction adjustment unit 191 is viewed in the direction of the arrow 192b illustrated in FIG.

  The EL direction adjustment unit 191 includes a support portion 171ba, an inclined portion receiver 218b, an inclined portion 217b, and a drive portion 201b.

  It is assumed that the lower surface 144a of the support portion 171b is fixed on the installation surface 145b of the turntable 204a shown in FIG.

  On the support portion 171b, an inclined portion receiver 218b and a drive portion 201b are installed.

  An inclined portion 217b is installed on the inclined portion receiver 218b.

  The bottom portion 213b of the inclined portion 217b has a shape corresponding to a part of the circumference in the shape shown in FIG. And the upper part 214b of the inclination part holder 218b shown in FIG.5 (b) is a shape corresponded to a part of periphery. The curvature of the shape corresponding to a part of the circumference shown in FIG. 5B of the bottom part 213b of the inclined part 217b and the part of the circumference shown in FIG. 5B of the upper part 214b of the inclined part receiver 218b. The curvature of the shape substantially matches.

  A receiving groove 212b is formed in the inclined portion receiver 218b. The receiving groove upper portion 216b of the receiving groove 212b has a shape corresponding to a part of the circumference having substantially the same curvature as the upper portion 214b of the inclined portion receiving portion 218b in the direction shown in FIG.

  On the other hand, an insertion portion 206b is formed in the inclined portion 217b. And the insertion part bottom part 219b of the insertion part 206b is a shape corresponded to a part of the circumference of the curvature substantially the same as the bottom part 213b of the inclination part 217b in the direction shown in FIG.5 (b).

  The insertion part 206b of the inclined part 217b is inserted into the receiving groove 212b of the inclined part receiver 218b.

  The inclined portion 217b has its own inclination when the bottom portion 213b of the inclined portion 217b slides on the upper portion 214b of the inclined portion receiver 218b in the circumferential direction of the upper portion 214 (the direction of the arrow 192d shown in FIG. 5B). Can be changed. The inclined portion 217b is not easily detached from the inclined portion receiver 218b by inserting its own insertion portion 206b into the receiving groove 212b of the inclined portion receiver 218b.

  The driving unit 201b is provided with a shaft 203 to which a gear 202b is connected. The drive unit 201b can rotationally drive the gear 202b by rotationally driving the shaft 203. The drive unit 201b is typically a motor, and is driven by power supplied from a power source (not shown).

  The inclined portion 217b is formed with a meshing portion 211b having teeth meshed with the teeth of the gear 202b. The position of the meshing portion 211b meshed with the teeth of the gear 202b is changed by the rotational drive of the gear 202b by the drive unit 201b. Since the position of the gear 202b does not change, the inclined portion 217b is inclined by sliding the inclined portion receiver 218b by changing the position of the engaging portion 211b engaged with the teeth of the gear 202b.

  As described above, the EL direction adjustment unit 191 can change the inclination of the installation surface 145 of the inclined part 217b in the direction of the arrow 192d with respect to the support part 171b.

  FIG. 6 is a conceptual diagram illustrating a configuration example of the imaging unit 141.

  The imaging unit 141 includes a filter unit 221, a lens unit 222a, a detection unit 223, and a processing unit 224.

  The filter unit 221 performs filter processing that mainly transmits light of a specific wavelength and attenuates light of other wavelengths with respect to light incident on itself in the direction indicated by the arrow 192e. The filter unit 221 may be a general material as long as it can transmit the center wavelength of the light 175b shown in FIG. 1 and may be omitted.

  The lens unit 222 a condenses the light incident on the detection unit 223 through the filter unit 221 at a predetermined incident angle.

  The detection unit 223 is a set of a large number of photosensors corresponding to pixels arranged in a planar shape. As the detection unit 223, typically, a CCD (charge-coupled device) sensor or a CMOS (complementary metal oxide semiconductor) sensor can be used. The detection unit 223 outputs information on the brightness of light input to each optical sensor included in the detection unit 223 to the processing unit 224.

  The processing unit 224 performs image processing on the signal input to the detection unit 223 and outputs the signal to the outside of the control calculation unit 131a illustrated in FIG.

  FIG. 7 is a conceptual diagram illustrating an example of a processing flow of processing performed by the information derivation system 13a illustrated in FIG. In each process shown in FIG. 7, the description to the left of the colon symbol (:) represents the subject of the process, and the description to the right of the colon symbol (:) represents the content of the process.

  First, as the processing of S101, the information deriving device 125a as the first information deriving device derives the adjustment angle in the first direction. Here, the first direction is a direction represented by an arrow 194a illustrated in FIG. 2B when the direction detection unit 121 illustrated in FIG. 2 is the direction detection unit 121a illustrated in FIG. The adjustment angle in the first direction is an angle at which a first optical axis (not shown) should be inclined in a certain direction in the first direction. A method for deriving the adjustment angle in the first direction will be described later.

  Next, as the processing of S102, the information deriving device 125b as the second information deriving device derives the adjustment angle in the second direction. Here, the second direction is a direction represented by an arrow 194a illustrated in FIG. 2B when the direction detection unit 121 illustrated in FIG. 2 is the direction detection unit 121b illustrated in FIG. The adjustment angle in the second direction is an angle at which a second optical axis (not shown) should be inclined in a certain direction in the second direction. A method for deriving the adjustment angle in the second direction will be described later.

  Next, as processing of S103, the information deriving device 125a, which is the first information deriving device, derives the adjustment angle in the third direction. Here, the third direction is a direction represented by an arrow 194b illustrated in FIG. 2B when the direction detection unit 121 illustrated in FIG. 2 is the direction detection unit 121a illustrated in FIG. The adjustment angle in the third direction is an angle at which the above-described first optical axis (not shown) should be inclined in a certain direction in the third direction. A method for deriving the adjustment angle in the third direction will be described later.

  Next, as the process of S104, the information deriving device 125b as the second information deriving device derives the adjustment angle in the fourth direction. Here, the fourth direction is a direction represented by an arrow 194b illustrated in FIG. 2B when the direction detection unit 121 illustrated in FIG. 2 is the direction detection unit 121b illustrated in FIG. The adjustment angle in the fourth direction is an angle at which the above-described second optical axis (not shown) should be inclined in a certain direction in the fourth direction. A method for deriving the adjustment angle in the fourth direction will be described later.

  8 to 11 are conceptual diagrams illustrating an example of a processing flow of processing for deriving the adjustment angle in the first direction represented in S101 of FIG. 8 to FIG. 11, the description to the left of the colon symbol (:) represents the subject of the processing, and the description to the right of the colon symbol (:) represents the content of the processing. Further, the subject of the processing is a configuration provided in the information deriving device 125a shown in FIG. 1 unless otherwise specified.

  First, the control calculation unit 131b of the information deriving device 125b sets the reference angle of the angle representing the first direction as the angle zero as the process of S201. The control calculation unit 131a records information representing the angle zero set by itself in a recording unit (not shown).

  Next, the control calculation unit 131b of the information deriving device 125b sets a threshold λ1 used in the subsequent process as the process of S202. The threshold λ1 is a value near zero. The control calculation unit 131a records information representing the threshold value λ1 set by the control calculation unit 131a in a recording unit (not shown).

  And the control calculating part 131a sets angle (DELTA) (theta) 1 used by a subsequent process as a process of S203. The control calculation unit 131a records information representing the angle Δθ1 set by itself in a recording unit (not shown).

  And the control calculating part 131a makes the imaging part 141 shown in FIG. 2 start imaging as a process of S204. The imaging unit 141 starts imaging. The imaging unit 141 sends the imaging information captured by the imaging unit 141 to the control calculation unit 131a at a certain interval after the imaging of the imaging unit 141 starts.

  And the control calculating part 131a sends a 1st notification signal via the communication line 155a with respect to the information derivation | leading-out apparatus 125b shown in FIG. 1 as a process of S204-2.

  Then, the control calculation unit 131b of the information deriving device 125b illustrated in FIG. 1 causes the sub light emitting unit 151 (hereinafter referred to as “first sub light emitting unit”) illustrated in FIG. 2 of the information deriving device 125b to start light emission. The first sub light emitting unit starts light emission.

  Next, in step S206, the control calculation unit 131a causes the imaging unit 141 to perform a high-intensity portion (hereinafter referred to as “first high”) of light emitted from the first sub-light emitting portion (hereinafter referred to as “first light”). The direction adjustment unit 161 adjusts the direction adjusted unit 126 in the first direction so that an image of the “strength portion” can be captured. The first high intensity portion is a portion of the first light that is received by the imaging unit 141 and whose intensity is higher than a preset threshold value in the detection unit 223 illustrated in FIG. 6. Here, it is assumed that the imaging unit 141 is set so that the image capturing unit 141 can image the first light by the adjustment of the first direction by the direction adjusting unit 161. If the imaging unit 141 is not set so that the first high-intensity part can be imaged by the adjustment in the first direction by the direction adjustment unit 161, the imaging unit 141 selects the first high-intensity part. The entire direction detection unit 121a is set manually or the like so that an image can be captured.

  And the direction adjustment part 161 adjusts the 1st direction of the direction to-be-adjusted part 126 so that a 1st high intensity | strength part can be imaged as a process of S207.

  Then, the control calculation unit 131a derives the center position of the first high-intensity part imaged by the imaging unit 141 (hereinafter referred to as “first center position”) as the process of S208. The image of the first center position is introduced in FIGS. The control calculation unit 131a records information representing the captured first center position in a recording unit (not shown).

  And the control calculating part 131a calculates | requires a 1st center distance as a process of S209. Here, the first center distance passes through the imaged first center position derived by the process of S208 and the position on the detection unit 223 shown in FIG. 6 representing the zero angle recorded by the process of S201. This is the distance from the line on the detection unit 223 shown in FIG. 6 perpendicular to the first direction. The image of the first center distance is introduced in FIGS. The control calculation unit 131a records the first center distance obtained by itself in a recording unit (not shown).

  Then, as the process of S209-2, the control calculation unit 131a sends information including the first center distance obtained by the process of S209 to the control calculation unit 131b of the information deriving device 125b through the communication line 155a. The control calculation unit 131b records the first center distance sent to itself by the control calculation unit 131a in a recording unit (not shown).

  Next, the control calculation unit 131b of the information deriving device 125b performs control of inclining the direction adjusted unit 126 to the direction adjusting unit 161 by one angle Δθ1 in one direction in the first direction as the process of S210 illustrated in FIG. . As a result, the direction adjusting unit 161 tilts the direction adjusted unit 126 by an angle Δθ1 in one direction of the first direction.

  And the control calculating part 131a derives | leads-out the 1st center position which the imaging part 141 imaged as a process of S211. The control calculation unit 131a records information representing the first center position imaged by the imaging unit 141 in a recording unit (not shown).

  And the control calculating part 131a calculates | requires a 1st center distance as a process of S212. The control calculation unit 131a records the first center distance obtained by itself in a recording unit (not shown).

  Then, as the process of S212-2, the control calculation unit 131a sends information including the first center distance obtained by the process of S212 to the control calculation unit 131b of the information deriving device 125b through the communication line 155a. The control calculation unit 131b records the first center distance sent to itself by the control calculation unit 131a in a recording unit (not shown).

  Next, the control calculation unit 131b of the information deriving device 125b determines whether the first center distance immediately before the latest S210 process is smaller than the first center distance immediately after the S210 process as the process of S213.

  When the control calculation unit 131b of the information deriving device 125b determines that the first center distance immediately before the latest S210 process is smaller than the first center distance immediately after the S210 process by the process of S213, the process of S216 is performed. Do.

  If the control calculation unit 131b of the information deriving device 125b does not determine that the first center distance immediately before the latest S210 process is smaller than the first center distance immediately after the S210 process by the process of S213, the process of S214 Process.

  When performing the process of S214, the control calculation unit 131b of the information deriving device 125b sets the direction of the first direction in which the direction adjusting unit 161 tilts the direction adjusted unit 126 as the reverse direction as the process of S214. The controller 161 is instructed. Here, the direction adjustment unit 161 is the direction adjustment unit 161 when the direction detection unit 121 illustrated in FIG. 2 is the direction detection unit 121b of the information deriving device 125b.

  Then, the direction adjustment unit 161 when the direction detection unit 121 shown in FIG. 2 is the direction detection unit 121b of the information deriving device 125b determines the direction of the first direction in which the direction adjustment unit 126 tilts itself as the process of S215. Set in reverse.

  And the control calculating part 131b performs the process of above-mentioned S210.

  On the other hand, when performing the process of S216, the control calculation unit 131b determines whether the latest first center distance is smaller than the threshold λ1 recorded in S202 as the process of S216.

  If the control calculation unit 131b determines that the latest first center distance is smaller than the threshold λ1 by the process of S216, the process of S217 is performed.

  If the control calculation unit 131b does not determine that the latest first center distance is smaller than the threshold λ1 by the process of S216, the process of S210 described above is performed.

  When performing the process of S217, the control calculation unit 131b derives the inclination angle θ1 from the state before the process illustrated in FIG. 8 of the direction adjusted unit 126 at the time of performing the process of S217 as the process of S217. To do. Then, the control calculation unit 131b records the inclination angle θ1 derived by itself in a recording unit (not shown).

  And the control calculating part 131b sends a notification signal to the control calculating part 131a as a process of S218.

  The control calculation unit 131b of the information deriving device 125b illustrated in FIG. 1 stops the light emission of the first sub-light emitting unit as the process of S219. The first sub light emitting unit stops light emission.

  Then, the control calculation unit 131b of the information deriving device 125b illustrated in FIG. 1 performs the sub-light emission illustrated in FIG. 2 when the information deriving device 125b is the information deriving device 125 illustrated in FIG. 2 as the process of S221 illustrated in FIG. The unit 152 (hereinafter referred to as “second sub-light emitting unit”) starts to emit light. The second sub light emitting unit starts light emission.

  Next, in step S221-2, the control calculation unit 131 a causes the imaging unit 141 to perform a high-intensity portion (hereinafter referred to as “second light”) of light emitted from the second sub-light-emitting portion (hereinafter referred to as “second light”). The direction adjusting unit 161 adjusts the direction adjusted unit 126 in the first direction so that the image of “two high-strength parts” can be captured. The second high-intensity part is a part of the second light that is received by the imaging unit 141 and whose light intensity is higher than a preset threshold value in the detection unit 223 illustrated in FIG. Here, it is assumed that the imaging unit 141 is set so that the image capturing unit 141 can image the second high-intensity unit by the adjustment of the first direction by the direction adjusting unit 161. If the image capturing unit 141 is not set so that the image capturing unit 141 can image the second high-intensity unit by adjusting the first direction by the direction adjusting unit 161, the image capturing unit 141 selects the second high-intensity unit. The entire direction detection unit 121a is set manually or the like so that an image can be captured.

  And the direction adjustment part 161 adjusts the 1st direction of the direction to-be-adjusted part 126 so that the imaging part 141 can image a 2nd high intensity | strength part as a process of S221-3.

  Then, the control calculation unit 131a derives the center position of the second high-intensity part imaged by the imaging unit 141 (hereinafter referred to as “second center position”) as the process of S222. The control calculation unit 131a records information representing the captured second center position in a recording unit (not shown).

  And the control calculating part 131a calculates | requires a 2nd center distance as a process of S223. Here, the second center distance passes through the imaged second center position derived by the process of S222 and the position on the detection unit 223 shown in FIG. 6 representing the zero angle recorded by the process of S201. This is the distance from the line on the detection unit 223 shown in FIG. 6 perpendicular to the first direction. The control calculation unit 131a records the second center distance obtained by itself in a recording unit (not shown).

  Then, as the process of S223-2, the control calculation unit 131a sends information including the first center distance obtained by the process of S223 to the control calculation unit 131b of the information deriving device 125b through the communication line 155a. The control calculation unit 131b records the first center distance sent to itself by the control calculation unit 131a in a recording unit (not shown).

  Next, as a process of S224 illustrated in FIG. 11, the control calculation unit 131b performs a control for inclining the direction adjusted unit 126 to the direction adjusting unit 161 by one angle Δθ1 in the first direction. As a result, the direction adjusting unit 161 tilts the direction adjusted unit 126 by an angle Δθ1 in one direction of the first direction.

  And the control calculating part 131a derives | leads-out the 2nd center position which the imaging part 141 imaged as a process of S225. The control calculation unit 131a records information representing the second center position in a recording unit (not shown).

  And the control calculating part 131a calculates | requires a 2nd center distance as a process of S226. The control calculation unit 131a records the second center distance obtained by itself in a recording unit (not shown).

  And the control calculating part 131a sends the information containing the 1st center distance which self calculated | required by the process of S226 to the control calculating part 131b of the information derivation | leading-out apparatus 125b through the communication line 155a as a process of S226-2. The control calculation unit 131b records the first center distance sent to itself by the control calculation unit 131a in a recording unit (not shown).

  Next, as the process of S227, the control calculation unit 131b determines whether the second center distance immediately after the latest S224 process is smaller than the second center distance immediately before the latest S224 process.

  If the control calculation unit 131b determines that the second center distance immediately after the process of S224 is smaller than the second center distance immediately before the process of S224 by the process of S227, the process of S231 is performed.

  If the control calculation unit 131b does not determine that the second center distance immediately after the process of S224 is smaller than the second center distance immediately before the process of S224 by the process of S227, the control calculation unit 131b performs the process of S228.

  When performing the process of S228, the control calculation unit 131b instructs the direction adjustment unit 161 to set the direction of the first direction in which the direction adjustment unit 161 tilts the direction-adjusted unit 126 as the reverse direction as the process of S228. To do. Here, the direction adjustment unit 161 is the direction detection unit 121 when the direction detection unit 121 illustrated in FIG. 2 is the direction detection unit 121b of the information deriving device 125b.

  When the direction detection unit 121 shown in FIG. 2 is the direction detection unit 121b of the information deriving device 125b, the direction adjustment unit 161 reverses the direction of the first direction in which the direction adjustment unit 126 tilts itself as the process of S229. Set to.

  And the control calculating part 131b performs the process of above-mentioned S224.

  On the other hand, when performing the process of S231, the control calculation unit 131b determines whether the latest second center distance is smaller than the threshold λ1 recorded in S202 as the process of S231.

  When it is determined by the process of S231 that the latest second center distance is smaller than the threshold λ1, the control calculation unit 131b performs the process of S232.

  If the control calculation unit 131b does not determine that the latest second center distance is smaller than the threshold λ1 by the process of S231, the control calculation unit 131b performs the process of S224 described above.

  When performing the process of S232, the control calculation unit 131b derives the inclination angle θ2 from the state before the process illustrated in FIG. 8 of the direction adjusted unit 126 at the time of performing the process of S232 as the process of S232. To do. Then, the control calculation unit 131b records the tilt angle θ2 derived by itself in a recording unit (not shown).

  And the control calculating part 131b sends a 2nd notification signal to the control calculating part 131a of the information derivation | leading-out apparatus 125a shown in FIG. 1 as a process of S233.

  The control calculation unit 131a stops the light emission of the second sub light emitting unit as the process of S234. The second sub light emitting unit stops light emission.

  Next, as the process of S241, the control calculation unit 131b calculates the inclination angle θ1 recorded in the recording unit (not shown) by the process of S217 and the inclination angle θ2 recorded by the self in the recording unit (not shown) by the process of S232. An average inclination angle θa12 is calculated.

  And the control calculating part 131b outputs the average inclination | tilt angle (theta) a12 calculated by the process of S241 outside as a process of S242.

  Finally, the control calculation unit 131b instructs the direction adjustment unit 161 to adjust the direction adjusted unit 126 according to the average inclination angle θa12 as the process of S243. Here, the direction adjustment unit 161 is the direction adjustment unit 161 when the direction detection unit 121 illustrated in FIG. 2 is the direction detection unit 121b of the information deriving device 125b. Further, the direction adjusted unit 126 is the direction adjusted unit 126 in the case where the direction detecting unit 121 illustrated in FIG. 2 is the direction detecting unit 121b of the information deriving device 125b. The direction adjusting unit 161 adjusts the direction of the direction adjusted unit 126 according to the average inclination angle θa12.

  Then, the information derivation system 13a ends the processes shown in FIGS.

  The processing of S102 shown in FIG. 7 and the description thereof are the contents obtained by replacing the following in the processing flow shown in FIGS. 8 to 11 and the description thereof. That is, the control operation unit 131a is replaced with the control operation unit 131b, the control operation unit 131a is replaced with the control operation unit 131b, and the information deriving device 125b is replaced with the information deriving device 125a. Further, the control calculation unit 131b is read as the control calculation unit 131a, and the direction detection unit 121a is read as the direction detection unit 121b. Further, the first direction is read as the third direction, the threshold value λ1 is read as the threshold value λ2, the angle Δθ1 is read as the angle Δθ2, and the first sub-light-emitting portion is read as the third sub-light-emitting portion. Also, the first light is read as the third light, the first high-intensity part is read as the third high-intensity part, and the first center position is read as the third center position. And the first center distance is the third center distance, the second sub-light emitting part is the fourth sub-light emitting part, the second light is the fourth light, the second high-intensity part is the fourth high-intensity part, and the second The center position is read as the fourth center position. Further, the inclination angle θ1 is read as the inclination angle θ3, the inclination angle θ2 as the inclination angle θ4, and the average inclination angle θa12 as the average inclination angle θa34.

  The processing of S103 shown in FIG. 7 and the description thereof are the contents obtained by replacing the following in the processing flows and the description thereof shown in FIGS. That is, the first direction is the fifth direction, the threshold λ1 is the threshold λ3, the angle Δθ1 is the angle Δθ3, the first sub-light emitting unit is the fifth sub-light emitting unit, the first light is the fifth light, and the first high The strength part is read as the fifth high-strength part, and the first center position is read as the fifth center position. The first center distance is the fifth center distance, the second sub-light emitting part is the sixth sub-light emitting part, the second light is the sixth light, the second high-intensity part is the sixth high-intensity part, and the second Replace the center position with the sixth center position. Further, the inclination angle θ1 is read as the inclination angle θ5, the inclination angle θ2 as the inclination angle θ6, and the average inclination angle θa12 as the average inclination angle θa56.

  The processing of S104 shown in FIG. 7 and the description thereof are the contents obtained by replacing the following in the processing flows shown in FIGS. 8 to 11 and the description thereof. That is, the control calculation unit 131a is read as the control calculation unit 131b, and the control calculation unit 131a is read as the control calculation unit 131b. Further, the information deriving device 125b is replaced with the information deriving device 125a, the control calculating unit 131b is replaced with the control calculating unit 131a, and the direction detecting unit 121a is replaced with the direction detecting unit 121b. The first direction is the seventh direction, the threshold λ1 is the threshold λ4, the angle Δθ1 is the angle Δθ4, the first sub-light emitting unit is the seventh sub-light emitting unit, the first light is the seventh light, and the first high The strength part is read as the seventh high strength part, and the first center position is read as the seventh center position. The first center distance is the seventh center distance, the second sub-light emitting part is the eighth sub-light emitting part, the second light is the eighth light, the second high-intensity part is the eighth high-intensity part, and the second Replace the center position with the eighth center position. Further, the inclination angle θ1 is read as the inclination angle θ7, the inclination angle θ2 as the inclination angle θ8, and the average inclination angle θa12 as the average inclination angle θa78.

As described above, the average inclination angles θa12, θa34, θa56, and θa78 are obtained by the processes of FIGS. 7 to 11 (including rereading). Here, the average inclination angle θa12 is an angle at which the optical axis adjustment in the direction of the arrow 194a shown in FIG. 2 to be sent to the light emitting device 326a by the control calculation unit 131a of the information deriving device 125a shown in FIG. Further, the average inclination angle θa34 is an angle at which the optical axis adjustment in the direction of the arrow 194a shown in FIG. 2 is sent to the light emitting device 326b by the control calculation unit 131b of the information deriving device 125b shown in FIG. Further, the average inclination angle θa56 is an angle at which the optical axis adjustment in the direction of the arrow 194b shown in FIG. 2 to be sent to the light emitting device 326a by the control calculation unit 131a of the information deriving device 125a shown in FIG. Further, the average inclination angle θa78 is an angle at which the optical axis adjustment in the direction of the arrow 194b shown in FIG. 2 is sent to the light emitting device 326b by the control calculation unit 131b of the information deriving device 125b shown in FIG.
[Concrete example]
Hereinafter, a specific example of the operation of the information derivation system 13a illustrated in FIG. 1 will be described with reference to an image diagram.

  12 to 24 are image diagrams showing specific examples of the operation of the information deriving system 13a shown in FIG.

  12A to 24A show a state where the information deriving device 125a and the information deriving device 125b shown in FIG. 1 are installed so as to face each other. 12 to 24A, the configuration of the information deriving device represents only the control unit and the direction adjusted unit, and the direction adjusting unit is omitted. 12A to 24A, the direction-adjusted unit 126, the sub-light-emitting unit 151, the sub-light-emitting unit 152, and the imaging unit 141 shown in FIG. 2 in the information deriving device 125a are arranged in this order. The adjustment unit 126a, the sub light emission unit 151a, the sub light emission unit 152a, and the imaging unit 141a are represented. 12 to 24A, the direction adjustment unit 126, the sub light emission unit 151, the sub light emission unit 152, and the imaging unit 141 illustrated in FIG. 2 in the information deriving device 125b are arranged in this order. A portion 126b, a sub light emitting portion 151b, a sub light emitting portion 152b, and an imaging portion 141b are represented.

  On the other hand, (b) in FIG. 12 to FIG. 16 represents a captured image assuming a case where an image captured by the imaging unit 141a of the information deriving device 125a is displayed. Further, (b) in FIG. 18 to FIG. 22 represents a captured image assuming a case where an image captured by the imaging unit 141b of the information deriving device 125b is displayed.

  FIG. 12 illustrates a state in which the process of S209-2 illustrated in FIG. 8 is performed in the process of S101 illustrated in FIG.

  In this state, the imaging unit 141a of the information deriving device 125a performs imaging of the imaging range represented by the line 198q and the line 198r by the process of S204 illustrated in FIG.

  In addition, by the process of S205, the sub light emitting unit 151b of the information deriving device 125b has the first light whose direction of the arrow 192f that is shifted by the angle 251ba with respect to the front direction of the direction adjustment unit 126b represented by the arrow 192g is the first light. The first light is emitted so as to be in the central direction of the emission.

  Since the emission direction of the first light is in the imaging range of the imaging unit 141a of the information deriving device 125a, the captured image of the imaging unit 141a is, for example, a captured image 401a illustrated in FIG. become. That is, the first high-intensity part 405a by the first light emission emitted from the sub-light emitting part 151b is imaged in the captured image 401a. Note that the captured image 401a is displayed partially on the captured image in the imaging range, not in the captured image of the entire imaging range captured by the imaging unit 141a.

  The center of the captured image 401 a is the zero angle position 404. The zero angle position 404 is a position that represents the center of the imaging direction of the imaging unit 141a.

  In the case illustrated in FIG. 12, since the imaging unit 141a has captured the first high-intensity portion 405a of the first light from the beginning, the processing of S206 and S207 illustrated in FIG. 8 can be omitted.

  The control calculation unit 131a identifies the coordinates of the first center position 406a, which is the center of the first high-strength portion 405a, by the process of S208 shown in FIG.

  And the control calculating part 131a derives | leads-out the 1st center distance 407a which is the distance of the line 199i which is a line which passes along the 1st center position 406a, and a zero angle position by the process of S209 shown in FIG.

  Next, the control calculation unit 131a sends information including the first center distance 407a derived by itself to the control unit 131b of the information deriving device 125b through the transmission line 231 as the processing of S209-2 illustrated in FIG.

  FIG. 13 illustrates a state in which the information deriving devices 125a and 101b perform the processes of S210, S211, S212, S212-2, S213, and S216 illustrated in FIG. 9 a plurality of times from the state illustrated in FIG. In the state shown in FIG. 13, the first center distance 407a is smaller than that in the state shown in FIG. However, in the state shown in FIG. 13, the first center distance 407a is not smaller than the threshold value λ1 set in S202 of FIG. This is because the threshold value λ1 is a value near zero as described above. The information deriving devices 125a and 101b further repeat the processing of S210, S211, S212, S212-2, S213, and S216 shown in FIG. 9 after the state shown in FIG.

  In FIG. 14, as a result of the processing of S210 to S216 shown in FIG. 9 being repeated by the information deriving devices 125a and 101b, the control calculation unit 131b determines that the first center distance 407a is smaller than the threshold λ1 by the processing of S216. Represents a state. Although the first center distance 407a is not shown in FIG. 14, it is difficult to express the first center distance 407a because the first center distance 407a is very small. Since the control calculation unit 131b determines that the first center distance 407a is smaller than the threshold λ1, the control calculation unit 131b subsequently performs the processes of S217, S218, and S219 shown in FIG.

  FIG. 15 illustrates a state where the control calculation unit 131b performs the process of S223-2 illustrated in FIG.

  The sub light emitting unit 152 (second sub light emitting unit) emits light by the process of S221 shown in FIG.

  The control calculation unit 131a identifies the coordinates of the second center position 406b by the process of S222 shown in FIG. Further, the control calculation unit 131a derives the second center distance 407b by the process of S223 illustrated in FIG. Furthermore, the control calculation part 131a is sending the information containing the 2nd center distance which self calculated | required by the process of S223 to the control calculation part 131b of the information derivation | leading-out apparatus 125b by the process of S223-2. The control calculation unit 131b records the second center distance sent to itself by the control calculation unit 131a in a recording unit (not shown).

  FIG. 16 illustrates a state in which the control calculation unit 131a performs the process of S232 illustrated in FIG.

  Up to the state shown in FIG. 16, the information deriving devices 125a and 125b repeatedly perform the processing from S224 to S231 shown in FIG. Then, until the state shown in FIG. 16, the control calculation unit 131b determines that the latest second center distance is smaller than the threshold λ1 by the process of S231 shown in FIG. Until the state illustrated in FIG. 16, the control calculation unit 131b further performs the processes of S232 and S233.

  FIG. 17 shows a state at the end of the processing of FIGS.

  In the state shown in FIG. 17, the control calculation unit 131a stops the light emission of the sub light emitting unit 152 by the process of S234 shown in FIG. Then, in the state shown in FIG. 17, the control calculation unit 131b performs the tilt angle θ1 recorded by itself by the processing of S217 in FIG. 9 by the processing of S241 and the tilt angle θ2 recorded by itself by the processing of S232 of FIG. The average inclination angle θa12, which is the average of the above, is derived. Further, in the state shown in FIG. 17, the control calculation unit 131b outputs the average inclination angle θa12 to the outside by the process of S242 shown in FIG. Further, in the state shown in FIG. 17, the control calculation unit 131b directs the direction-adjusted unit 126 to the direction of the average inclination angle θa12 by the process of S243 shown in FIG.

  With the above operation, the processing of S101 shown in FIG. 7 is completed.

  Therefore, next, the process of S102 shown in FIG. 7 is performed. Since the process of S102 is similar to the process of S101, it will be briefly described below.

  FIG. 18 illustrates a state in which the process of S209-2 illustrated in FIG. 8 is performed in the process of S102.

  From the state shown in FIG. 18, the direction of the direction-adjusted portion 126a is adjusted to the direction of the arrow 192h shown in FIG. 19 by repeating the processing of S210 to S216 shown in FIG.

  FIG. 20 shows a state in which the process of S217 shown in FIG. 9 has been performed.

  FIG. 21 illustrates a state where the process of S221 illustrated in FIG. 10 is performed.

  FIG. 22 shows a state in which the process of S232 shown in FIG. 11 has been performed.

  FIG. 23 illustrates a state where the process of S243 illustrated in FIG. 12 is performed. In the state shown in FIG. 23, the angle adjustment in the first direction of the direction adjusted unit 126 of the information deriving device 125a and the angle adjustment in the second direction of the direction adjusted unit 126 of the information deriving device 125a are finished.

  In the state shown in FIG. 23, the directions of the direction adjusted portion 126a and the direction adjusted portion 126b are substantially the same with respect to the direction shown in FIG. However, in the state shown in FIG. 23, the direction in which the direction adjusted portion 126a faces and the direction in which the direction adjusted portion 126b faces substantially coincide with each other in the direction perpendicular to the direction shown in FIG. Not necessarily. Here, the direction perpendicular to the direction shown in FIG. 23 is the back direction toward FIG.

  Therefore, after the state shown in FIG. 23, the processes of S103 and S104 shown in FIG. 7 are performed.

  FIG. 24 illustrates a state where the process of S104 illustrated in FIG. As shown in FIG. 24, in the state in which the process of S104 is finished, the direction of the direction adjusted portion 126a and the direction adjusted portion 126b is perpendicular to the direction shown in FIG. The depth direction is substantially the same.

  Accordingly, as shown in FIGS. 23 and 24, the two optical axes can be substantially matched by performing the optical axis alignment with the adjustment angles in the first to fourth directions in which the direction adjusted portions 126a and 126b can be adjusted. .

  The operation of the information derivation system of the first embodiment described above is summarized below. The information deriving system of the first embodiment obtains an adjustment angle necessary for adjusting the optical axis between the two light emitting devices by performing the following operation between the two information deriving devices included in the information deriving system. . That is, the first information deriving system images the light emitted from the second information deriving device, and sends the imaging data to the second information deriving device through the communication line, so that the second information deriving device has its direction. Adjust the angle of the part to be adjusted. An imaging unit and a light emitting unit are fixed to the direction adjustment unit of the second information deriving device. Therefore, by adjusting the angle of the direction adjustment unit of the second information deriving device, the imaging direction of the imaging unit is adjusted to be closer to the direction of the direction adjusted unit of the first information deriving device. Next, the second information deriving system after adjusting the angle images the light emitted from the first information deriving device, and sends the imaging data to the first information deriving device through the communication line. The information deriving device adjusts the angle of the direction adjusted portion. As described above, the imaging direction of the second information deriving device is adjusted to be close to the direction of the direction-adjusted portion of the first information deriving device. Therefore, the angle of the direction adjusted portion can be correctly directed to the first information deriving device in the direction of the direction adjusted portion of the second direction adjusting portion. Therefore, the information deriving system of the first embodiment can improve the accuracy of the adjustment angle used for adjusting the optical axes of the two light emitting devices in the direction in which the optical axes are aligned.

  That is, the information deriving system of the first embodiment can improve the accuracy of the adjustment angle, which is the optical axis adjustment information used for adjusting the optical axes of the two light emitting devices in the direction in which the optical axes are aligned.

Further, the information deriving system of the first embodiment does not need to use a particularly expensive configuration or a configuration that is susceptible to performance degradation or disturbance. Therefore, the information deriving system of the first embodiment can stably and inexpensively derive optical axis adjustment information for performing high-precision optical axis adjustment.
[effect]
The information deriving system of the first embodiment obtains an adjustment angle necessary for adjusting the optical axis between the two light emitting devices by performing the following operation between the two information deriving devices included in the information deriving system. . That is, the first information deriving system images the light emitted from the second information deriving device, and sends the imaging data to the second information deriving device through the communication line, so that the second information deriving device has its direction. Adjust the angle of the part to be adjusted. An imaging unit and a light emitting unit are fixed to the direction adjustment unit of the second information deriving device. Therefore, by adjusting the angle of the direction adjustment unit of the second information deriving device, the imaging direction of the imaging unit is adjusted to be closer to the direction of the direction adjusted unit of the first information deriving device. Next, the second information deriving system after adjusting the angle images the light emitted from the first information deriving device, and sends the imaging data to the first information deriving device through the communication line. The information deriving device adjusts the angle of the direction adjusted portion. As described above, the imaging direction of the second information deriving device is adjusted to be close to the direction of the direction-adjusted portion of the first information deriving device. Therefore, the angle of the direction adjusted portion can be correctly directed to the first information deriving device in the direction of the direction adjusted portion of the second direction adjusting portion. Therefore, the information deriving system of the first embodiment can improve the accuracy of the adjustment angle used for adjusting the optical axes of the two light emitting devices in the direction in which the optical axes are aligned.

  In addition, the information deriving system of the first embodiment does not need to use an expensive configuration or a configuration that is susceptible to performance deterioration or disturbance.

Therefore, the information deriving system of the first embodiment can stably and inexpensively derive optical axis adjustment information for performing high-precision optical axis adjustment.
<Second embodiment>
The second embodiment is an embodiment relating to an optical transmission / reception system including the information deriving system of the first embodiment.
[Configuration and operation]
FIG. 25 is a conceptual diagram illustrating a configuration of an optical transmission / reception system 11a that is an example of the optical transmission / reception system according to the second embodiment.

  The optical transmission / reception system 11a includes an optical transmission / reception device 101a and an optical transmission / reception device 101b.

  The optical transmission / reception device 101a includes an optical transmission / reception unit 111a and an information deriving device 125a.

  The optical transmission / reception device 101b includes an optical transmission / reception unit 111b and an information deriving device 125b.

  The information deriving device 125a and the information deriving device 125b constitute an information deriving system 13a.

  The information deriving system 13a is the same as the information deriving system 13a shown in FIG. Therefore, the description of the information derivation system 13a is as described in the description of the first embodiment except for the following.

  The information deriving device 125a outputs information necessary for adjusting the optical axis of the light transmitting / receiving unit 111a to the light transmitting / receiving unit 111a which is the light emitting device 326a shown in FIG.

  The information deriving device 125b outputs information necessary for adjusting the optical axis of the light transmitting / receiving unit 111b to the light transmitting / receiving unit 111b which is the light emitting device 326b illustrated in FIG.

  The light transmission / reception unit 111a converts the light input from the outside to the parallel light 175aa through the optical fiber 116baaa, and outputs the parallel light 175aa toward the light transmission / reception unit 111b through the space. The parallel light 175aa has a first optical axis. When the parallel light 175ab output from the light transmission / reception unit 111b is incident on the optical transmission / reception unit 111a at an appropriate position and angle, the optical transmission / reception unit 111a converts the parallel light 175ab into convergent light (not shown). Output to the outside through 116baba.

  The light transmitting / receiving unit 111b converts the light input to the outside through the optical fiber 116baab into parallel light 175ab, and outputs the parallel light 175ab toward the light transmitting / receiving unit 111a through the space. The parallel light 175ab has a second optical axis. When the parallel light 175aa output from the light transmission / reception unit 111a is incident on the optical transmission / reception unit 111b at an appropriate position and angle, the optical transmission / reception unit 111b converts the parallel light 175aa into convergent light (not shown). Output to the outside through 116babb.

  It is assumed that the light transmitting / receiving unit 111a and the light transmitting / receiving unit 111b substantially match the first optical axis and the second optical axis. The light transmitting / receiving unit 111a and the light transmitting / receiving unit 111b are assumed to receive parallel light emitted from one side by the optical axis substantially matched.

  FIG. 26 is a conceptual diagram illustrating a configuration example of the optical transmission / reception unit 111b.

  The light transmission / reception unit 111b includes a fixed unit 112b, an adjusted unit 114b, an adjusting unit 115b, and a control unit 113b.

  The fixing unit 112b outputs light input to the outside through the optical fiber 116baa to the adjusted unit 114b through the optical fiber 116bb. In addition, the fixing unit 112b outputs light output from the adjusted unit 114b to the outside through the optical fiber 116bb to the outside through the optical fiber 116bb. The fixing unit 112b also measures the intensity of the parallel light 175ab input to the adjusted unit 114b that the adjusted unit 114b sends to the self through the optical fiber 116bb, and sends the measurement result to the control unit 113b.

  The adjusted portion 114b is fixed to the adjustment surface 145e of the adjustment portion 115b. The adjusted unit 114b can output the parallel light 175ab obtained by converting the light input to the fixing unit 112b through the optical fiber 116bb toward the light transmitting / receiving unit 111a via the space. The parallel light 175ab has a second optical axis (not shown).

  The light transmitting / receiving unit 111a can output the parallel light 175aa toward the adjusted unit 114b. The parallel light 175aa has a first optical axis (not shown).

  When the first optical axis and the second optical axis substantially coincide with each other, the adjusted portion 114b can receive the parallel light 175aa transmitted by the light transmitting / receiving unit 111a with high efficiency with little loss. Further, when the first optical axis and the second optical axis substantially coincide with each other, the light transmitting / receiving unit 111a can receive the parallel light 175ab transmitted by the adjusted unit 114b with high efficiency with little loss.

  The control unit 113b sends a signal to the adjustment unit 115b based on signal information including information necessary for adjusting the optical axis sent from the information deriving device 125b, and causes the adjustment unit 115b to change the angle of the adjustment surface. The control unit 113b also determines in advance the intensity of the parallel light 175aa input to the adjusted unit 114b based on the information indicating the intensity of the parallel light 175aa input to the adjusted unit 114b that the fixing unit 112b sends to the control unit 113b. It is determined whether it is larger than the threshold value. The control unit 113b outputs a determination result as to whether the intensity of the parallel light 175aa input to the adjusted unit 114b is greater than a predetermined threshold value to a display unit (not shown).

  The fixed surface 144e of the adjustment unit 115b is fixed. And the adjustment part 115b can adjust the angle of the adjustment surface 145e with the signal which the control part 113b sends. By changing the angle of the adjustment surface 145e, the angle of the adjusted portion 114b changes. By changing the angle of the adjusted portion 114b, the angle of the optical axis (not shown) provided in the adjusted portion 114b changes. The adjustment unit 115b substantially matches the first optical axis and the second optical axis with a signal including information necessary for adjustment of the optical axis sent by the control unit 113b.

  FIG. 27 is a conceptual diagram illustrating a configuration example of the fixing unit 112b illustrated in FIG.

  The fixing unit 112b includes a circulator 117b, an optical fiber 116bac, an optical fiber 116bad, an optical splitter 129b, and an optical detector 127b.

  The circulator 117b outputs the light input to the adjusted portion 114b through the optical fiber 116bb to the optical splitter 129b through the optical fiber 116bac. In addition, the circulator 117b outputs light input to the external transmission unit through the optical fiber 116baa to the adjusted unit 114b through the optical fiber 116bb.

  The optical splitter 129b outputs part of the light input to the circulator 117b to the optical detector 127b via the optical fiber 116bad. The optical splitter 129b outputs another part of the light input to the circulator 117b to the external receiving unit through the optical fiber 116bab.

  The optical detector 127b measures the intensity of light input to the optical splitter 129b through the optical fiber 116bad. Then, the optical detector 127b sends information indicating the intensity of light input to itself to the control unit 113b through the wiring 128b.

  FIG. 28 is a conceptual diagram illustrating a configuration example of the adjusted unit 114b. The adjusted portion 114b includes at least a part of the optical fiber 116bb, a support portion 171d, and a lens portion 222b.

  The vicinity of the end portion 118d of the optical fiber 116bb is fixed to the support portion 171d. The lens portion 222b is fixed to the support portion 171d.

  The adjusted surface 146d of the support portion 171d is fixed to the adjusting surface 145e of the adjusting portion 115b shown in FIG.

  The light sent from the fixing portion 112b to the adjusted portion 114b through the optical fiber 116bb is output from the end portion 118d to the lens portion 222b as diffused light 175aba.

  The lens part 222b converts the diffused light 175aba output from the end part 118d into parallel light 175ab. The parallel light 175ab is output toward the light transmitting / receiving unit 111a. Line 198u represents the second optical axis which is the optical axis of the parallel light 175ab.

On the other hand, when the first optical axis coincides with the second optical axis described above, the parallel light 175aa output from the light transmitting / receiving unit 111a toward the adjusted unit 114b is incident on the lens unit 222b. The lens unit 222b converts the parallel light 175aa into convergent light 175aaa. Then, the convergent light 175aaa enters the optical fiber 116bb from the end 118d. The convergent light 175aaa is output to the fixed portion 112b through the optical fiber 116bb.
[Processing flow]
FIG. 29 is a conceptual diagram illustrating a processing flow example of processing performed by the transmission / reception system 11a illustrated in FIG. 29, the left of the comma “:” symbol represents the subject of the process, and the right of the comma “:” symbol represents the content of the process.

  First, as the processing of S301, rough adjustment is performed so that the first optical axis and the second optical axis coincide as much as possible. This adjustment is performed by an operator, for example. When the operator performs this adjustment, the operator adjusts the relative position and the relative angle between the light transmitting / receiving unit 111a and the light transmitting / receiving unit 111b shown in FIG. The optical axis and the second optical axis are matched as much as possible. Alternatively, instead of the operator, a device such as a robot that performs rough adjustment so that the first optical axis and the second optical axis coincide as much as possible may perform the adjustment.

  Next, the information deriving device 125a and the information deriving device 125b obtain information necessary for adjusting the first and second optical axes as the processing of S302. As the process of S301, the process shown in FIG. 7 can be used. When the processing shown in FIG. 7 is used, the adjustment angle in the first direction and the adjustment angle in the third direction shown in FIG. 7 are information necessary for adjustment of the first optical axis. When the process shown in FIG. 7 is used, the adjustment angle in the second direction and the adjustment angle in the fourth direction shown in FIG. 7 are information necessary for adjustment of the second optical axis. The information deriving device 125a sends information necessary for adjusting the first optical axis to the light transmitting / receiving unit 111a. The information deriving device 125b sends information necessary for adjusting the second optical axis to the light transmitting / receiving unit 111b.

  Then, the light transmission / reception unit 111a adjusts the first optical axis based on the information necessary for adjustment of the first optical axis sent to itself by the information deriving device 125a as the process of S303.

  Moreover, the light transmission / reception part 111b adjusts a 2nd optical axis with the information required for adjustment of the 2nd optical axis which the information derivation | leading-out apparatus 125b sent to self as a process of S304.

  Next, in the process of S304, the light transmitting / receiving unit 111a has the intensity measured in advance by the fixing unit (the fixing unit corresponding to the fixing unit 112b shown in FIG. 26) included in the parallel light 175ab transmitted by the light transmitting / receiving unit 111b. It is judged whether it is larger than the set threshold value.

  When the light transmitting / receiving unit 111a determines that the intensity measured by the fixed unit is greater than the preset threshold value, the light transmitting / receiving unit 111b performs the process of S306.

  If the light transmitting / receiving unit 111a does not determine that the intensity measured by the fixed unit is greater than a preset threshold value, the outside performs the above-described processing of S301 again.

  When performing the process of S306, the light transmission / reception unit 111b determines whether the intensity measured by the fixing unit 112b included in the parallel light 175aa transmitted by the light transmission / reception unit 111a is greater than a preset threshold as the process of S306. judge.

  When the light transmission / reception unit 111b determines that the intensity measured by the fixed unit 112b is greater than a preset threshold value, the transmission / reception system 11a ends the processing illustrated in FIG.

  If the light transmitting / receiving unit 111b does not determine that the intensity measured by the fixed unit 112b is greater than a preset threshold value, the outside performs the process of S301 described above again.

  When the transmission / reception system 11a finishes the process shown in FIG. 29, the first optical axis and the second optical axis substantially coincide with each other.

  Since the transmission / reception system 11a includes the information deriving system 13a shown in FIG. 1, the same effect as that obtained by the information deriving system 13a is achieved.

In addition, the transmission / reception system 11a adjusts the first and second optical axes according to the information necessary for adjusting the first and second optical axes derived by the information deriving system 13a provided therein. be able to.
[effect]
Since the transmission / reception system according to the second embodiment includes the information deriving system according to the first embodiment, first, the same effect as that obtained by the information deriving system according to the first embodiment is obtained.

In addition, the transmission / reception system according to the second embodiment uses the information necessary for adjusting the first and second optical axes derived by the information deriving system according to the first embodiment. The axis can be adjusted.
<Third embodiment>
The third embodiment is an embodiment relating to an optical transmission / reception system in which the adjusted portion of the transmitting / receiving device is fixed to the direction adjusted portion of the information deriving device.
[Configuration and operation]
As the optical transmission / reception system of the third embodiment, the optical transmission / reception system 11a shown in FIG. 25 described in the second embodiment can be used. The description of the optical transmission / reception system 11a is as described in the second embodiment.

  However, the configuration of the optical transmission / reception unit 111b illustrated in FIG. 26 is not used as the optical transmission / reception unit included in the optical transmission / reception devices 101a and 101b of the third embodiment 11a illustrated in FIG. And as a light transmission / reception apparatus 101a and 101b with which 11a of 3rd embodiment shown in FIG. 25 is provided, the structure of the light transmission / reception apparatus of 3rd embodiment demonstrated below is used.

  FIG. 30 is a conceptual diagram illustrating a configuration of an optical transmission / reception device 101d which is an example of the optical transmission / reception device of the third embodiment.

  The optical transmission / reception device 101d includes an information deriving device 125d and an optical transmission / reception unit 111d.

  The information deriving device 125d includes a direction detection unit 121a, a sub light emission unit 151, a sub light emission unit 152, an imaging unit 141, and a direction adjustment unit 161.

  The optical transmission / reception unit 111d includes a control unit 113b, a fixed unit 112b, an optical fiber 116bb, an adjusted unit 114d, and a direction adjusting unit 161.

  The direction adjusting unit 161 has a common configuration between the information deriving device 125d and the light transmitting / receiving unit 111d.

  The adjusted portion 114b, the sub light emitting portion 151, the sub light emitting portion 152, and the imaging portion 141 are fixed to each other by the support portion 171. The direction adjusted surface 146e of the support portion 171 is fixed to the adjustment surface 145e of the direction adjustment portion 161.

  The direction adjustment unit 161 can adjust the angle of the adjustment surface 145e. By changing the angle of the adjustment surface 145e, the imaging unit 141, the sub light emitting unit 151, the sub light emitting unit 152, and the adjusted unit 114b are integrally changed.

  That is, the direction adjustment unit 161 can perform the operation of the direction adjustment unit 161 illustrated in FIG. 2 and can also perform the operation of the adjustment unit 115b illustrated in FIG. When the direction adjustment unit 161 performs an operation corresponding to the operation of the adjustment unit 115b illustrated in FIG. 26, the direction detection unit 121a drives the direction adjustment unit 161, whereby the direction adjustment unit 161 includes the adjustment unit illustrated in FIG. An operation corresponding to the operation 115b is performed. In that case, the direction detection part 121a drives the direction adjustment part 161 with the signal which the control part 113b shown in FIG. 30 sends to the direction detection part 121a.

  Other than the above description of the third embodiment for each component of the next first component group is the same as the description of the component represented by the same number in FIGS. Here, each configuration of the first configuration group includes a direction detection unit 121a, a direction adjustment unit 161, a sub light emission unit 151, a sub light emission unit 152, an imaging unit 141, a support unit 171 and a direction adjusted unit 126. However, when the description in FIGS. 1 to 6 and the above description contradict each other, the above description has priority.

  In addition, the descriptions of the third embodiment other than those described above for the respective components of the next second configuration group are the same as the descriptions of the configurations represented by the same numbers in FIGS. 25 to 28. Here, each configuration of the second configuration group includes a control unit 113b, a fixing unit 112b, optical fibers 116bb, 116baa, 116bab, and an adjusted unit 114b.

The optical transmission / reception device 101d does not include an adjustment unit for exclusively adjusting the angle of the adjusted unit 114b, and causes the direction adjusting unit 161 that adjusts the direction of the imaging unit and the sub-light emitting unit to adjust the angle of the adjusted unit 114b. . Accordingly, the optical transmission / reception system 11a of the third embodiment in which the optical transmission / reception device 101d is applied as the optical transmission / reception devices 101a and 101b shown in FIG. The same effect as the optical transmission / reception system 11a can be obtained.
[Processing flow]
As the processing flow of the optical transmission / reception system 11a shown in FIG. 25 to which the optical transmission / reception device 101d shown in FIG. 30 is applied, for example, the processing flow of the second embodiment shown in FIG. 29 can be applied. The description of the processing flow shown in FIG. 29 is as described in the second embodiment.
[effect]
First, the optical transmission / reception system of the third embodiment has the same effects as the optical transmission / reception system of the second embodiment.

And the optical transmission / reception system of 3rd embodiment can acquire the same effect as the optical transmission / reception system of 2nd embodiment with a fewer number of parts than the optical transmission / reception system of 2nd embodiment.
<Fourth embodiment>
The fourth embodiment is an embodiment relating to a communication system capable of performing spatial communication after the first optical axis and the second optical axis are substantially coincided with each other.
[Configuration and operation]
FIG. 31 is a conceptual diagram illustrating a configuration of a communication system 12a that is an example of the communication system according to the fourth embodiment.

  The communication system 12a includes a communication device 105a and a communication device 105b.

  The communication device 105a includes an optical transmission / reception device 101a and a transmission / reception processing device 135a.

  The communication device 105b includes an optical transmission / reception device 101b and a transmission / reception processing device 135b.

  The optical transmission / reception device 101a includes an optical transmission / reception unit 111a and an information deriving device 125a.

  The optical transmission / reception device 101b includes an optical transmission / reception unit 111b and an information deriving device 125b.

  The light transmitting / receiving unit 111a converts light input to the transmission / reception processing device 135a through the optical fiber 116baaa and outputs parallel light 175aa toward the light transmitting / receiving unit 111b through the space. The parallel light 175aa has a first optical axis. When the parallel light 175ab output from the light transmission / reception unit 111b is incident on the optical transmission / reception unit 111a at an appropriate position and angle, the light transmission / reception unit 111a transmits light converted from the parallel light 175ab through the optical fiber 116baba. Output to.

  The light transmission / reception unit 111b converts light input to the transmission / reception processing device 135b through the optical fiber 116baab and outputs parallel light 175ab toward the light transmission / reception unit 111a through space. The parallel light 175ab has a second optical axis. When the parallel light 175aa output from the light transmission / reception unit 111a is incident on the optical transmission / reception unit 111b at an appropriate position and angle, the light transmission / reception unit 111b transmits the light converted from the parallel light 175aa through the optical fiber 116babb. Output to.

  Except for the above, the explanation of the optical transmission / reception devices 101a and 101b is the same as the explanation of the optical transmission / reception devices 101a and 101b shown in FIG.

  As the transmission / reception processing devices 135a and 135b, the configuration of the transmission / reception processing device described below can be used.

  FIG. 32 is a conceptual diagram illustrating a configuration of a transmission / reception processing device 135 that is an example of the transmission / reception processing device 135a or 135b illustrated in FIG.

  The transmission / reception processing device 135 includes a transmission / reception processing unit 136, a transmission unit 137, and a reception unit 138.

  The transmission / reception processing unit 136 performs transmission processing on the information determined to be transmitted by itself, and converts the information into an electric signal that can be transmitted. The transmission / reception processing unit 136 sends the converted electrical signal to the transmission unit 137. The transmission / reception processing unit 136 also performs reception processing on the electrical signal sent to the reception unit 138 and converts the electrical signal into information of another format.

  The transmission unit 137 converts the electrical signal sent to the transmission / reception processing unit 136 to an optical signal. Then, the transmission unit 137 sends the converted optical signal to the optical transmission / reception unit (optical transmission / reception unit 111a or 111b) illustrated in FIG. 31 through the optical fiber 116baa. When the transmission / reception processing device shown in FIG. 31 is the transmission / reception processing device 135a shown in FIG. 31, the optical transmission / reception unit and the optical fiber 116baa are the optical transmission / reception unit 111a and the optical fiber 116baaa. In addition, when the transmission / reception processing device illustrated in FIG. 31 is the transmission / reception processing device 135b illustrated in FIG. 31, the optical transmission / reception unit and the optical fiber 116baa are the optical transmission / reception unit 111b and the optical fiber 116baab.

  The receiving unit 138 converts the optical signal sent from the light transmitting / receiving unit to itself through the optical fiber 116 bab into an electric signal. Here, when the transmission / reception processing device shown in FIG. 31 is the transmission / reception processing device 135a shown in FIG. 31, the optical transmission / reception unit and the optical fiber 116bab are the optical transmission / reception unit 111a and the optical fiber 116baba. In addition, when the transmission / reception processing device illustrated in FIG. 31 is the transmission / reception processing device 135b illustrated in FIG. 31, the optical transmission / reception unit and the optical fiber 116baa are the light transmission / reception unit 111b and the optical fiber 116babb. The receiving unit 138 sends the converted electrical signal to the transmission / reception processing unit 136.

The communication devices 105a and 105b constituting the communication system 12a can communicate with the other communication device when the first optical axis and the second optical axis are substantially coincident with the other communication device. Thus, transmission / reception processing of information through the space can be performed.
[effect]
Since the communication system of the fourth embodiment has the configuration of the communication system of the second embodiment, first, the same effects as the communication system of the second embodiment are exhibited.

  In addition, the communication device constituting the communication system of the fourth embodiment has a space between the communication device of the other party and the communication device of the other party when the optical axes for optical communication are substantially matched. The transmission / reception process of information can be performed.

  FIG. 33 is a conceptual diagram showing an information derivation system 13x which is the minimum configuration of the information derivation system of the present invention.

  The information deriving system 13x derives information for bringing a first optical axis (not shown) that is an optical axis of first light (not shown) close to a second optical axis (not shown) that is an optical axis of second light (not shown). It is an information derivation system. Here, the first light is light emitted by the first light emitting device 326ya. The second light is light emitted from the second light emitting device 326yb.

  The information deriving system 13x includes an information deriving device 125xa that derives first optical axis adjustment information that is information for adjusting the first optical axis, and second light that is information for adjusting the second optical axis. And an information deriving device 125xb for deriving the axis adjustment information.

  The information deriving device 125xa and the information deriving device 125xb are connected by a communication line (not shown).

  The information deriving device 125xa includes a light emitting unit 150xa that emits third light (not shown) and an imaging unit 140xa for imaging the fourth light (not shown) emitted by the information deriving device 125xb.

  The information deriving device 125xb includes a light emitting unit 150xb that emits the fourth light and an imaging unit 140xb for imaging the third light.

  The information deriving device 125xa derives the first optical axis adjustment information by adjusting the emission angle of the third light emitting unit 150xa depending on how the third light imaging unit 140xb is imaged.

  The information deriving device 125xb derives the second optical axis adjustment information by adjusting the emission angle of the fourth light emitting unit 150xb depending on how the fourth light imaging unit 140xa is imaged.

  The information deriving system 13x has the effects described in the section [Effects of the Invention] by the above configuration.

  The present invention has been described above with reference to preferred embodiments. However, the present invention is not necessarily limited to the above embodiments, and various modifications can be made within the scope of the technical idea.

  Moreover, although a part or all of said embodiment can be described also as the following additional remarks, it is not restricted to the following.

(Appendix A1)
For bringing the first optical axis that is the optical axis of the first light emitted by the first light emitting device closer to the second optical axis that is the optical axis of the second light emitted by the second light emitting device. An information derivation system for deriving information,
First information deriving device for deriving first optical axis adjustment information that is information for adjusting the first optical axis, and second optical axis adjustment information that is information for adjusting the second optical axis And a second information deriving device connected to the first information deriving device via a communication line,
The first information deriving device includes a first light emitting unit that emits third light, and a first imaging unit for imaging the fourth light emitted by the second information deriving device,
The second light emitting device includes a second light emitting unit that emits the fourth light, and a second imaging unit for imaging the third light,
The first information deriving device adjusts the first optical axis adjustment information by adjusting an emission angle of the third light by the first light emitting unit according to how the third light is imaged by the second imaging unit. Derived,
The second information deriving device adjusts an emission angle of the fourth light by the second light emitting unit according to how the fourth image is captured by the first imaging unit, thereby adjusting the second optical axis adjustment information. Deriving,
Information derivation system.

(Appendix A1.1)
The information derivation system according to appendix A1, wherein the first light and the second light are parallel light.

(Appendix A2)
The angle formed by the third light emission direction and the imaging direction of the first imaging unit, and the angle formed by the fourth light emission direction and the imaging direction of the second imaging unit are fixed. The information derivation system described in Appendix A1 or Appendix A1.1.

(Appendix A3)
The information derivation system according to appendix A1 or appendix A2, in which the first light emitting unit and the first imaging unit are fixed, and the second light emitting unit and the second imaging unit are fixed.

(Appendix A4)
The information derivation system according to any one of supplementary notes A1 to A3, wherein each of the first light emitting unit and the second light emitting unit includes a plurality of sub light emitting units.

(Appendix A5)
The information deriving system according to attachment A4, wherein the plurality is four.

(Appendix A6)
The information deriving system according to appendix A5, wherein the light emission direction of the first pair of sub light emitting units among the four sub light emitting units included in the first light emitting unit is symmetric with respect to the image capturing direction of the first image capturing unit. .

(Appendix A7)
The information derivation described in appendix A6, in which the light emission direction of the second pair of sub light emitting units among the four sub light emitting units included in the first light emitting unit is symmetric with respect to the image capturing direction of the first image capturing unit. system.

(Appendix A8)
Appendices A5 to A7, in which the light emission center direction of the first pair of sub-light-emitting portions of the four sub-light-emitting portions included in the first light-emitting portion is symmetric with respect to the image pickup central direction of the first image pickup portion. An information derivation system described in any one of the above.

(Appendix A9)
Appendices A5 to A8, in which the center direction of light emission of the second pair of sub-light-emitting portions of the four sub-light-emitting portions included in the first light-emitting portion is symmetric with respect to the center direction of imaging of the first imaging portion. An information derivation system described in any one of the above.

(Appendix A10)
The line connecting the respective light emission centers of the first pair of sub light emitting sections and the line connecting the respective light emission centers of the second pair of sub light emitting sections are substantially perpendicular, A7 or The information derivation system described in Appendix A9.

(Appendix A11)
First information for deriving the first optical axis adjustment information obtained by the second imaging unit imaging one of the first pair of sub light emitting units, and the pair of sub light emitting units Supplementary notes A6 to A6 for deriving the first optical axis adjustment information based on second information for deriving the first optical axis adjustment information obtained by imaging the other by the second imaging unit. The information derivation system described in any one of A10.

(Appendix A12)
The information derivation system according to any one of supplementary notes A6 to A10 that derives the first optical axis adjustment information by calculating an average of the first information and the second information.

(Appendix A13)
Third information for deriving the first optical axis adjustment information obtained by the second imaging unit imaging one of the second pair of secondary light emitting units, and the second pair of secondary light emitting units. The first optical axis adjustment information is derived from the fourth information for deriving the first optical axis adjustment information obtained by the second imaging unit imaging the other of the light emitting units. The information derivation system described in any one of A7, Supplementary Note A9, Supplementary Note A11, and Supplementary Note A12 (Note that Supplementary Note A11 or Supplementary Note A12 is limited to the quoted portion of Supplementary Note A7 or Supplementary Note 9.).

(Appendix B1)
A light emitting system comprising: the information deriving system according to any one of supplementary notes A1 to A13; the first light emitting device; and the second light emitting device.

(Appendix C1)
An information derivation system according to any one of appendices A1 to A13, the first light emitting device, and the second light emitting device,
The first light emitting device is a first light transmitting and receiving device that may receive light incident on the first light emitting device.
Optical transmission / reception system.

(Appendix C2)
The optical transmission / reception system according to appendix C1, wherein the first optical transmission / reception device receives the second light when the first optical axis and the second optical axis substantially coincide with each other.

(Appendix C3)
The optical transmission / reception system according to Supplementary Note C1 or Supplementary C2, wherein the first optical transmission / reception device emits the first light obtained by converting light transmitted from the first outside to the first optical transmission / reception device.

(Appendix C4)
The optical transmission / reception system according to attachment C3, wherein the first outside is a transmission processing device.

(Appendix C5)
When the first light transmitting / receiving device receives light incident on the first light emitting device, the light converted from the light incident on the first light emitting device is sent to the second outside. The optical transmission / reception system described in any one of C1 to appendix C4.

(Appendix C6)
The optical transmission / reception system according to attachment C5, wherein the first outside is a reception processing device that performs reception processing.

(Appendix D1)
A communication system comprising the optical transmission / reception system described in Appendix C6 (limited to the quoted portion of Appendix C4), the transmission processing device, and the reception processing device.

11a Optical transmission / reception system 12a Communication system 13a, 13x Information derivation system 51a, 51b, 51c, 51d, 51e Point 101a, 101b, 101d Optical transmission / reception device 105a, 105b Communication device 111a, 111b, 111d Optical transmission / reception unit 112b Fixed unit 113b Control unit 114b Adjusted part 115b Adjusting part 116baa, 116baa, 116baab, 116bab, 116baba, 116bab, 116babb, 116bb Optical fiber 117b Circulator 118d End part 121a, 121b Direction detecting part 125a, 125b, 125d, 125xa, 125xb 126 Information device , 126b Direction adjusted portion 127b Optical detector 128b Wiring 129b Optical splitter 131a, 131b Control operation unit 1 5, 135a, 135b Transmission / reception processing device 136 Transmission / reception processing unit 137 Transmission unit 138 Reception unit 140xa, 140xb, 141, 141a, 141b Imaging unit 143b, 143c Upper surface 144a, 144b, 144c Lower surface 144e Fixed surface 145, 145b Installation surface 145e Adjustment surface 145e 146d, 146e Surface to be adjusted 150a, 150b, 150xa, 150xb Light emitting part 151, 151a, 151b, 152, 152a, 152b, 153, 154 Sub light emitting part 155a Communication line 161 Direction adjusting part 166 Output line 171, 171c, 171d Support part 175aa, 175ab parallel light 175b, 175c, 175fa, 175fb light 175aa diffused light 175aba convergent light 181 AZ direction adjustment unit 191 EL direction adjustment unit 192a, 192e, 92f, 192g, 192j, 192m, 192n, 192o, 192p, 192q, 192r, 192s, 192t, 193a, 193b, 193c, 193d, 193e, 193f, 193g, 193h, 193i, 193j, 193k, 193p, 193p, 193p, 193p 194a, 194b Arrows 198a, 198b, 198m, 198n, 198o, 198p, 198q, 198r, 198u, 198s, 198t, 199, 199c, 199h, 199i, 199q, 199r Wire 201a, 201b 205a Turntable holder 206a Insertion part 208a Receiving hole 211b Engagement part 221 Filter part 222a, 222b Lens part 223 Detection part 224 Processing part 251a251b, 251c Angle 326a, 326b, 326ya, 326yb Light emitting device 401a, 401b, 401c, 401d, 401e, 401f, 401g, 401h, 401i Captured image 404 Zero angle position 405a First high intensity part 405b Second high intensity part 405c Third high Strength part 405d Fourth high strength part 406a First center position 406b Second center position 406c Third center position 406d Fourth center position 407a First center distance 407b Second center distance 407c Third center distance 407d Fourth center distance

Claims (10)

The first optical axis adjustment information used for the first adjustment, which is the adjustment of the direction of the first optical axis performed by the first light emitting device, relating to the first light emitted by the first light emitting device. A first information deriving device for sending to the first light emitting device;
The second optical axis adjustment information used for the second adjustment, which is the adjustment of the second optical axis performed by the second light emitting device, related to the second light emitted by the second light emitting device, A second information deriving device for sending to the second light emitting device;
An information derivation system comprising:
The first information deriving device includes:
A first light emitting unit that emits third light, a first imaging unit for imaging the fourth light emitted by the second information deriving device,
A first adjustment unit that performs a first adjustment that is an adjustment of a first direction that is a direction of emission of the third light;
With the first control operation unit
With
The second information deriving device is:
A second light emitting unit that emits the fourth light, a second imaging unit for imaging the third light,
A second adjustment unit for performing a second adjustment that is an adjustment of a second direction that is the direction of emission of the fourth light;
A second control operation unit;
With
The first control calculation unit captures the third light in the captured image related to the first imaging information received from the second information deriving device, which is adjusted by the first adjustment and the second adjustment. The first optical axis adjustment information is derived by the position,
The second control calculation unit captures the fourth light in the captured image related to the second imaging information received from the first information deriving device adjusted by the first adjustment and the second adjustment. Deriving the second optical axis adjustment information according to the position,
Information derivation system.
  The information derivation system according to claim 1, wherein the first light and the second light are parallel light.   The information derivation system according to claim 1 or 2, wherein the first light emitting unit and the first imaging unit are fixed, and the second light emitting unit and the second imaging unit are fixed. .   The information derivation system according to any one of claims 1 to 3, wherein each of the first light emitting unit and the second light emitting unit includes a plurality of sub light emitting units.   The information derivation system according to claim 4, wherein the plurality is four.   6. The information derivation according to claim 5, wherein a light emission direction of a first pair of sub light emitting units among the four sub light emitting units provided in the first light emitting unit is symmetric with respect to an image capturing direction of the first image capturing unit. system.   7. The information according to claim 6, wherein a light emission direction of a second pair of sub light emitting units among the four sub light emitting units included in the first light emitting unit is symmetric with respect to an image capturing direction of the first image capturing unit. Derivation system.   A light emission system comprising: the information deriving system according to claim 1; the first light emission device; and the second light emission device. An information deriving system according to any one of claims 1 to 7, the first light emitting device, and the second light emitting device,
The first light emitting device is a first light transmitting and receiving device that may receive light incident on the first light emitting device.
Optical transmission / reception system. An optical transmission / reception system according to claim 9, a transmission processing device and a reception processing device provided in the first optical transmission / reception device,
The first optical transceiver is
The transmission processing device emits the first light obtained by converting the light sent to the first light transmitting / receiving device,
When the first optical axis and the second optical axis substantially coincide with each other, the second light is received,
When receiving the light incident on the self, the light converted into the light incident on the self is sent to the reception processing device,
Communications system.

Images