CN109835452B - Deep sea temperature measurement equipment based on optical communication - Google Patents
Deep sea temperature measurement equipment based on optical communication Download PDFInfo
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- CN109835452B CN109835452B CN201910270482.5A CN201910270482A CN109835452B CN 109835452 B CN109835452 B CN 109835452B CN 201910270482 A CN201910270482 A CN 201910270482A CN 109835452 B CN109835452 B CN 109835452B
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Abstract
The invention relates to deep sea temperature measuring equipment based on optical communication, and belongs to the technical field of deep sea detection. The deep sea temperature measuring equipment comprises a mechanical arm, a temperature measuring device and a watertight cable, wherein the mechanical arm comprises a driving arm and a clamping jaw arranged at the moving end of the driving arm; the temperature measuring device comprises a temperature measuring unit and a communication transmission unit, wherein a gap is reserved between the temperature measuring unit and the communication transmission unit to form a separated structure; temperature measurement unit and communication transmission unit carry out communication connection based on two-way optical communication module group to with temperature detect signal output and pass back the latent ware through the watertight cable, and with the latent ware through the control signal transmission that the watertight cable sent for temperature measurement unit. Based on this structure setting, not only be convenient for deep sea detection control, and can release the temperature measurement unit and retrieve most equipment and avoid the watertight cable to break when surveying the front end and blocking, but wide application in deep sea detection technical field.
Description
Technical Field
The invention relates to the technical field of deep sea detection, in particular to deep sea temperature measuring equipment based on optical communication.
Background
The temperature of a liquid in the deep sea has been measured as early as 80 years in the 20 th century, and is usually measured directly by a thermistor, for example, a rapid temperature measurement thermistor in the deep sea disclosed in patent document No. CN1357896A, which is made of three metal oxides of cobalt, manganese and nickel through a certain process, and can measure the temperature rapidly and stably in the deep sea.
Generally, the measuring process is that the deep submersible vehicle carries the temperature measuring device to the deep sea, and inserts the sensing end of the temperature measuring device into the hydrothermal nozzle to collect the temperature, and the detection signal is transmitted out through the watertight cable directly and electrically connected with the temperature measuring device. In the temperature measurement process, the problem that the temperature measurement device cannot be pulled out due to the fact that the front temperature measurement sleeve is distorted and deformed and is clamped in the hot liquid nozzle or the problem that the hot liquid nozzle collapses and clamps the front end portion exists, the watertight cable can be broken due to the fact that the temperature measurement device is directly connected with the submersible through the watertight cable, the problem that the watertight cable is easily wound by other objects in the process of clamping the temperature measurement unit by a manipulator is solved, and the problem is very inconvenient.
Disclosure of Invention
The invention mainly aims to provide deep-sea temperature measuring equipment, which can recycle most of equipment when a temperature measuring device is clamped, avoids the problems caused by cable winding as much as possible and effectively ensures the safety of a submersible vehicle.
In order to achieve the main purpose, the deep sea temperature measuring equipment based on optical communication provided by the invention comprises a mechanical arm, a temperature measuring device and a watertight cable, wherein the mechanical arm comprises a driving arm and a clamping jaw arranged on the moving end of the driving arm; the temperature measuring device comprises a temperature measuring unit and a communication transmission unit, wherein a gap is reserved between the temperature measuring unit and the communication transmission unit to form a separation structure, the communication transmission unit is fixed on the moving end of the mechanical arm, and the temperature measuring unit is releasably clamped on the clamping jaw; the temperature measuring unit comprises a detection module for temperature detection, a signal processing module and a first optical communication module; the signal processing module is used for converting the analog voltage signal acquired by the detection module into a digital signal; the first optical communication module is used for converting the digital signal output by the signal processing module into a temperature detection optical signal and sending the temperature detection optical signal to the external environment, and converting a control optical signal received from the external environment into a control electrical signal and outputting the control electrical signal to the control unit of the temperature measuring unit; the communication transmission unit is used for receiving the control electrical signal sent in the submersible vehicle, converting the control electrical signal into a control optical signal, sending the control optical signal to the external environment to be received by the first optical communication module, receiving the temperature detection optical signal, reducing the optical signal into the temperature detection electrical signal, and sending the temperature detection electrical signal back to the interior of the submersible vehicle through the watertight cable.
The temperature measuring device is driven by the manipulator to move to a target detection position so as to facilitate the operation and control of deep sea detection, and is arranged into a temperature measuring unit and a communication transmission unit which are separated in structure, when the temperature measuring unit is clamped at the target detection position, the clamping jaw can be controlled to only release the temperature measuring unit so as to recover most of equipment, and simultaneously, the watertight cable can be prevented from being broken; in addition, the deep sea short-distance communication is carried out by using light as a carrier, so that the method is reliable and low in implementation cost.
The temperature measuring unit comprises a watertight first mounting shell, a detection module fixedly connected to the front end part of the first mounting shell, a signal processing module and a first optical communication module, wherein the signal processing module and the first optical communication module are arranged in the first mounting shell in a watertight manner; the communication transmission unit comprises a watertight second mounting shell, a signal modulation circuit and a second optical communication module, wherein the signal modulation circuit and the second optical communication module are mounted in the second mounting shell, and the second optical communication module is used for transmitting the control optical signal and receiving the temperature detection optical signal through a second light-transmitting shell on the second mounting shell.
The first mounting shell comprises a first cylindrical body, a first end cover and a first light-transmitting end cover, wherein the first end cover is sleeved on the front open end of the first cylindrical body in a watertight manner, the first light-transmitting end cover is sleeved on the rear open end of the first cylindrical body in a watertight manner, and the first light-transmitting shell comprises a first light-transmitting end cover; the second installation shell comprises a second cylindrical body, a second light-transmitting end cover, a second end cover and a watertight seat, wherein the second light-transmitting end cover is sleeved on the front open end of the second cylindrical body in a watertight manner, the second end cover is sleeved on the rear open end of the second cylindrical body in a watertight manner, the watertight seat is fixed on the second end cover in a watertight manner, the second light-transmitting shell comprises a second light-transmitting end cover, and the end part of the watertight cable is fixedly connected with the second installation shell in a watertight manner through the watertight seat.
The further proposal is that the middle part of the inner cavity wall of the first cylindrical body is raised to form a first inner shoulder, the front end surface is concavely formed with a first screw hole, and the rear end surface is concavely formed with a second screw hole; a partition board for dividing the inner cavity into a battery compartment and a circuit compartment is sleeved in the middle of the inner cavity of the first cylindrical body, and a second communicating hole is formed in the middle of the partition board; a second sealing ring groove is formed in the inner cavity wall of the first cylindrical body and is recessed in the rear end part of the first inner shoulder; the battery compartment is arranged between the first end cover and the partition plate, and the circuit compartment is arranged between the first light-transmitting end cover and the partition plate; the first end cover is of a columnar structure, a first shaft shoulder is convexly formed at the front end part of the outer peripheral surface of the first end cover, a plurality of first mounting through holes which are uniformly distributed around the axis of the first shaft shoulder are arranged on the first shaft shoulder, a first sealing ring groove is concavely formed at the rear end part of the outer peripheral surface, an annular sleeve seat is convexly arranged in the middle area of the end surface of the front end part, an inner hole of the sleeve seat is a third screw hole, and the bottom end of the third screw hole extends along the axial direction to form a first connecting through hole which penetrates through the first end cover; the screw penetrates through the first mounting through hole and then is screwed with the first screw hole, so that the first end cover is fixed on the front end part of the first cylindrical body, and the first sealing ring groove is sleeved with an elastic sealing ring which is tightly pressed between the first sealing ring groove and the inner cavity wall of the first cylindrical body; the rear end part of the first cylindrical body is provided with a first pressing ring, the first pressing ring is provided with a plurality of second mounting through holes which are uniformly distributed around the axis of the first cylindrical body, a screw passes through the second mounting through holes and is screwed with the second screw hole, the first pressing ring is fixed on the rear end part of the first cylindrical body, the first light-transmitting end is covered and pressed between the first inner shoulder and the first pressing ring, and an elastic sealing ring which is tightly pressed between the second sealing ring groove and the inner cavity wall of the first cylindrical body is sleeved in the second sealing ring groove; the first light-transmitting end cover is organic glass.
The body of the first light-transmitting end cover is of a cylindrical structure; the signal processing module comprises a battery arranged in the battery cabin and a circuit board arranged in the circuit cabin; the first optical communication module comprises a light emitting device and a light receiving device which are fixed on the circuit board; the circuit board is arranged at the rear side of the partition board, and the first optical communication module is arranged at the rear side of the circuit board; and a signal wire of the detection module sequentially penetrates through the first communicating hole, the inner cavity of the battery compartment and the second communicating hole and is electrically connected with a wiring terminal arranged on the circuit board.
Preferably, the light emitting device includes a light emitting diode, and the light receiving device includes a photodiode.
The front end part of the inner cavity wall of the second cylindrical body is convexly provided with a second inner shoulder, the front end surface is concavely provided with a fourth screw hole, the rear end surface is concavely provided with a fifth screw hole, and the inner cavity wall of the front end part is concavely provided with a third sealing ring groove; the second end cover is of a columnar structure, a second shaft shoulder is convexly formed at the rear end part of the outer peripheral surface of the second end cover, and a fourth seal ring groove is concavely formed at the front end part of the outer peripheral surface of the second end cover; the second shaft shoulder is provided with a plurality of third mounting through holes which are uniformly distributed around the axis of the second shaft shoulder; a large-diameter hole is concavely formed in the central area of the front end face of the second end cover, a small-diameter screw hole is concavely formed in the central area of the rear end face, and the large-diameter hole is communicated with the small-diameter screw hole; the end part of the watertight seat is screwed with the small-diameter screw hole and fixed on the rear end face of the second end cover; a second pressing ring is arranged at the front end part of the second cylindrical body, and a plurality of fourth mounting through holes which are uniformly distributed around the axis of the second pressing ring are formed in the second pressing ring; the screw penetrates through the fourth mounting through hole and then is screwed with the fourth screw hole, so that the second pressing ring is fixed on the rear end part of the second cylindrical body, the second light-transmitting end cover is tightly pressed between the second inner shoulder and the second pressing ring, and the third sealing ring groove is sleeved with an elastic sealing ring tightly pressed between the third sealing ring groove and the inner wall of the second cylindrical body; the fourth seal ring groove is sleeved with an elastic seal ring which is tightly pressed between the fourth seal ring groove and the inner cavity wall of the second cylindrical body; the screw passes through the third mounting through hole and then is screwed with the fifth screw hole, so that the second end cover is fixed on the front end part of the second cylindrical body.
The body of the second light-transmitting end cover is of a cylindrical structure; the second optical communication module comprises an optical receiving device and an optical emitting device, wherein the optical receiving device comprises a photodiode fixed on the signal processing circuit board; the light emitting device comprises a light emitting diode fixed on the signal modulation circuit board; the second optical communication module is arranged at the rear side of the second light-transmitting end cover, and the signal modulation circuit board is arranged at the rear side of the second optical communication module; the leading wire of the watertight cable passes through the small-diameter screw hole and the large-diameter hole after passing through the watertight seat and is electrically connected with the wiring terminal arranged on the signal modulation circuit board; the second light-transmitting end cover is organic glass.
The preferred scheme is that the detection module comprises a sleeve, a thermocouple wire sleeved in the sleeve, a pressing cap, an end cap and a protective sleeve fixedly connected (welded) on the end cap; the protective sleeve is sleeved outside the sleeve, the front end of the protective sleeve is an open end, the sleeve does not extend out of the protective sleeve, and a gap is reserved between the outer wall of the sleeve and the inner cavity wall of the protective sleeve; the pressing cap is used for fixing the rear end of the sleeve on the front end part of the first cylindrical body in a watertight manner, and the end cover cap is fixed on the front end part of the first cylindrical body in a buckling manner; the thermocouple wire passes behind the intercommunicating pore of locating on first section of thick bamboo body watertightly, is connected with the binding post electricity of locating on the circuit board to detect analog signal transmission for signal processing module with the temperature.
The other preferred scheme is that the detection unit comprises a sleeve, a thermocouple wire sleeved in the sleeve, a pressing cap, an end cap and a protective sleeve fixedly connected to the end cap; the protective sleeve is sleeved outside the sleeve, the front end of the protective sleeve is an open end, the sleeve does not extend out of the protective sleeve, and a gap is reserved between the outer wall of the sleeve and the inner cavity wall of the protective sleeve; the pressing cap is used for fixing the rear end of the sleeve on the front end part of the first cylindrical body in a watertight manner, and the end cover cap is fixed on the front end part of the first cylindrical body in a buckling manner; the thermocouple wire penetrates through the communication hole in the first cylindrical body in a watertight manner, is electrically connected with the wiring terminal on the circuit board, and transmits the temperature detection analog signal to the signal processing module; the protective sleeve is fixedly connected to the central area of the end cap, a third communication hole for communicating an inner hole of the protective sleeve with the inner cavity of the end cap is formed in the central area, and a plurality of fifth mounting through holes which are uniformly distributed around the axis of the end cap are formed in the end cap; the pressure cap is provided with a fourth communication hole which is sleeved outside the fixed end part of the sleeve, the thermocouple wire is sleeved in the sleeve and fixedly connected with the sleeve at the port part of the sleeve; the pressing cap is fixed in the third screw hole through a thread structure; the screw sequentially passes through the fifth mounting through hole and the first mounting through hole and is screwed with the first screw hole of the first cylindrical body so as to fix the detection module on the front end part of the first cylindrical body; the sleeve is a titanium tube with one end sealed.
Drawings
FIG. 1 is a perspective view of an embodiment of the deep sea thermometry apparatus of the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
FIG. 3 is an axial sectional view of a temperature measuring device in an embodiment of the deep sea temperature measuring apparatus of the present invention;
FIG. 4 is an enlarged view of a portion B of FIG. 3;
FIG. 5 is an enlarged view of a portion C of FIG. 3;
FIG. 6 is an exploded view of a temperature measuring unit in an embodiment of the deep sea temperature measuring apparatus of the present invention;
FIG. 7 is an enlarged view of portion D of FIG. 6;
FIG. 8 is an enlarged view of E in FIG. 6;
FIG. 9 is an axial sectional view of a communication transmission unit in an embodiment of the deep sea temperature measuring apparatus of the present invention;
FIG. 10 is an enlarged view of portion F of FIG. 9;
FIG. 11 is an enlarged view of a portion G of FIG. 10;
FIG. 12 is an exploded view of a communication transmission unit in an embodiment of the deep sea thermometry apparatus of the present invention;
fig. 13 is a partial enlarged view H of fig. 12.
Detailed Description
The invention is further illustrated by the following examples and figures.
Embodiments of deep sea thermometry apparatus
Referring to fig. 1 to 13, the deep sea temperature measuring apparatus 1 of the present invention includes a manipulator 14, a temperature measuring device 12, and a watertight cable 13.
As shown in fig. 1 and 2, the robot 14 includes a gripping jaw 140, a driving arm 1411, and a control unit, and the gripping jaw 140 is mounted on a moving end 1410 of the driving arm 141. The control unit controls the driving arm 141 to drive the moving end 1410 to move in three-dimensional space, so as to drive the clamping jaw 140 to move to different target positions, and controls the clamping jaw 140 to open to release the clamped object or close to clamp the target object and place the clamped object at the target position. Among them, the robot 14 may employ a multi-axis robot, for example, a multi-axis robot having three or more axes.
As shown in fig. 1 to 13, the temperature measuring device 11 includes a temperature measuring unit 2 and a communication transmission unit 3. The communication transmission unit 3 is fixed on the moving end 1410 through a bracket, the temperature measuring unit 2 is releasably clamped on the clamping jaw 140, and a gap exists between the temperature measuring unit 2 and the communication transmission unit 3 to form a separation structure, i.e. the clamping jaw 140 can be opened at any time to release the temperature measuring unit 2, and the temperature measuring unit 2 can be moved to a target detection position during clamping.
As shown in fig. 3 to 8, the temperature measuring unit 2 includes a detection module 4, a signal processing module 5, a mounting case 6, a bracket 7, and a first optical communication module 8. The detection module 4 is fixedly connected to the left end part of the installation shell 6, the signal processing module 5 and the first optical communication module 8 are installed in the installation shell 6, and the installation shell 6 is sleeved on the bracket 7; bracket 7 is T type structure, includes along horizontal arrangement's mount pad 70 and along vertical arrangement's supporting rod 71, is equipped with arc mounting groove 700 on mount pad 70, and cylindric installation casing 6 suit is on this arc mounting groove 700 to adopt the screw to carry out detachably fixed, the draw-in groove structure is fixed, bonding structure fixes or the staple bolt structure carries out detachably fixed. The manipulator 14 clamps the bracket 7 by clamping the clamping rods 71 through the clamping jaws 140 of the manipulator, so that the manipulator 14 can control the position of the temperature measuring unit 2.
The installation housing 6 is a watertight installation housing structure, and includes a cylindrical body 60, a partition 61, a press ring 62, an end cover 63 watertightly fitted over the left open end of the cylindrical body 60, and a light-transmitting end cover 64 watertightly fitted over the right open end of the cylindrical body 60. The center of the inner cavity wall of the cylindrical body 60 is protruded to form an annular inner shoulder 600, the left end surface is concavely formed with a screw hole 601, and the right end surface is concavely formed with a screw hole 602. The end cover 63 has a cylindrical body, a shoulder 630 is convexly formed at the left end of the outer peripheral surface, a plurality of installation through holes 6300 are uniformly arranged around the axis of the shoulder 630, that is, the installation through holes 6300 are uniformly arranged around the axis of the shoulder, a sealing ring groove 631 is concavely formed at the right end of the outer peripheral surface of the end cover 63, an annular sleeve seat 632 is convexly formed at the middle region of the outer end surface, an inner hole of the sleeve seat 632 is a screw hole 6320, and a communication hole 633 penetrating through the end cover 63 is formed by extending the bottom end of the screw hole 6320 in the axial direction. The middle part of the cylindrical body 60 is provided with a partition plate 61, and the middle part of the partition plate 61 is provided with a communication hole 610. On the inner cavity wall of the cylindrical body 60, two sealing ring grooves 603 arranged side by side are formed at the right end part of the inner shoulder 600 in a concave manner, and a plurality of mounting through holes 620 uniformly arranged around the axis of the pressing ring 62 are arranged.
The detection module 4 includes a sleeve 40, a thermocouple wire 41, a press cap 42, an end cap 44, and a protective sheath 43. The thermocouple wires 41 are nested within the sleeve 40. The protective sleeve 43 is fixedly connected to the central area of the end cap 44, a communication hole for communicating the inner hole of the protective sleeve 43 with the inner cavity of the end cap 44 is formed in the central area, and a plurality of mounting through holes 440 are uniformly arranged around the axis of the end cap 44. The pressing cap 42 is provided with a communication hole fitted around the outside of the fixed end portion of the sleeve 40, and is screwed with the screw hole 6320 at the port portion of the sleeve 40 to fixedly connect the sleeve 40 and the end cap 63 in watertight manner. In this embodiment, the sleeve 40 is a titanium tube with one end sealed.
The signal processing module 5 includes a battery 500 mounted in the battery compartment 50 and two circuit boards 510 mounted in the circuit compartment 51 in a side-by-side arrangement.
In the installation process, the right end of the end cap 63 is sleeved in the left open end of the cylindrical body 60, the shoulder 630 of the end cap is pressed against the left end face of the cylindrical body 60, the elastic sealing ring 6305 is sleeved on the sealing ring groove 631, the screw 6301 penetrates through the installation through hole 6300 arranged on the shoulder 630 and then is screwed with the screw hole 601 arranged on the cylindrical body 60, so that the end cap 63 is fixed on the cylindrical body 60, and the elastic sealing ring 6305 is tightly pressed between the sealing ring groove 631 and the inner cavity wall of the cylindrical body 60, so that the end cap 63 is fixed on the left end of the cylindrical body 60 in a watertight manner.
An elastic sealing ring 6306 is sleeved in the sealing ring groove 603; the body of the light-transmitting end cap 64 is a cylindrical structure, which is sleeved in the right open end of the cylindrical body 60, and the left end face of the light-transmitting end cap is pressed against the inner shoulder 600; the pressing ring 62 is fixed on the right end face of the cylindrical body 60 by using a screw 6302 to press the light-transmitting end cap 64 tightly between the inner shoulder 600 and the pressing ring 62 to be fixed in the right end portion of the cylindrical body 60; specifically, after passing through the mounting through hole 620 provided in the pressing ring 62, the screw 6302 is screwed into the screw hole 602 provided in the cylindrical body 60 to fix the pressing ring 62 to the cylindrical body 60, and the elastic sealing ring 6306 is tightly pressed between the sealing ring groove 603 and the inner cavity wall of the cylindrical body 60, thereby fixing the light-transmitting end cap 64 to the right end portion of the cylindrical body 60 in a watertight manner. In this embodiment, the elastic sealing ring 6305 and the elastic sealing ring 6306 are both made of O-rings, and the transparent end cap 64 is made of organic glass.
The pressing cap 42 is fixed in the screw hole 6320 of the socket 632 by a screw structure to fix the fixed end of the sleeve 40 to the end cap 63; the end cap 44 and the end cap 63 are fixed to the left end of the cylindrical body 60 by screws 6301 that pass through the mounting through holes 440 and 6300 in this order and then are screwed into the screw holes 601. The signal processing module 5 is arranged in the inner cavity of the mounting shell 6, and the inner cavity of the cylindrical body is divided into a battery compartment 50 and a circuit compartment 51 by a partition plate 61; the battery compartment 50 is arranged between the end cover 63 and the partition plate 61 and fixed by the end cover 63 and the partition plate 61, and the circuit compartment 51 is arranged between the light-transmitting end cover 64 and the partition plate 61; a battery, mounted in the battery compartment 50, supplies the relevant units with the electrical energy required for operation. The first optical communication module 8 is arranged on the right side of the circuit board 510. The thermocouple wire 41 is electrically connected to a connection terminal 5100 provided on the circuit board 510 after passing through a communication hole 633 provided in the end cover 63, the inner cavity of the battery compartment 50, and a communication hole 610 provided in the partition plate 61 in this order, so as to transmit a detection signal to a signal processing unit mounted on the circuit board 510.
Referring to fig. 9 to 13, the communication transmission unit 3 includes a mounting case 9, and a second optical communication module 10 and a signal modulation circuit 11 mounted in an inner cavity of the mounting case 9.
The mounting case 9 is a watertight mounting case structure, and includes a cylindrical body 90, a press ring 91, a light-transmitting end cap 92, an end cap 93, and a watertight seat 94. The light-transmitting end cap 92 is water-tightly fitted into the left open end of the cylindrical body 90, and the end cap 93 is water-tightly fitted into the right open end of the cylindrical body 90. An annular inner shoulder 900 is convexly formed at the left end part of the inner cavity wall of the cylindrical body 90, a screw hole 901 is concavely formed in the left end surface, a screw hole 902 is concavely formed in the right end surface, and two sealing ring grooves 903 arranged side by side are concavely formed in the inner cavity wall of the left end part. The pressing ring 91 is provided with a plurality of mounting through holes 910 uniformly arranged around the axis thereof. Wherein, the watertight seat 94 adopts an Impulse four-core watertight seat.
The end cap 93 is a columnar structure, a shaft shoulder 930 is convexly formed at the right end part of the outer peripheral surface of the columnar structure, a sealing ring groove 931 is concavely formed at the left end part, and a plurality of mounting through holes 9300 uniformly arranged along the circumferential direction are formed on the shaft shoulder 930; a large-diameter hole 933 is concavely formed in the central area of the left end face, a small-diameter screw hole 932 is concavely formed in the central area of the right end face, and the large-diameter hole 933 is communicated with the small-diameter screw hole 932 to form a stepped hole structure.
In the installation process, the body of the light-transmitting end cover 92 is a cylindrical structure, which is sleeved in the left open end of the cylindrical body 90, and the right end face is pressed against the inner shoulder 900; the pressing ring 91 is fixed to the cylindrical body 90 by screws 9301 to press the light-transmissive end cap 92 tightly between the pressing ring 91 and the inner shoulder 900, thereby fixing the light-transmissive end cap 92 to the left end of the cylindrical body 90. specifically, the screws 9301 pass through the mounting through holes 910 provided in the pressing ring 91 and are screwed into the screw holes 901 provided in the cylindrical body 90 to fix the light-transmissive end cap 92 to the left end of the cylindrical body 90. The elastic seal 9305 is fitted into the seal groove 903 and is pressed tightly between the seal groove 903 and the inner wall of the cylindrical body 90, thereby fixing the light-transmitting end cap 92 on the left end portion of the cylindrical body 90 in a watertight manner.
The end cap 93 is sleeved in the right opening of the cylindrical body 90, and the shaft shoulder 930 of the end cap is pressed against the right end face of the cylindrical body 90; the elastic sealing ring 9306 is sleeved on the sealing ring groove 931; the screw 9302 passes through the mounting through hole 9300 provided in the shoulder 930 and is screwed into the screw hole 902 provided in the cylindrical body 90, and the elastic seal 9306 is pressed tightly between the seal groove 931 and the inner wall of the cylindrical body 90, thereby fixing the end cap 93 to the right end portion of the cylindrical body 90 in a watertight manner. The watertight seat 94 is screwed to the small-diameter screw hole 932 and is fixed to the end cover 93 in a watertight manner. In this embodiment, the elastic sealing rings 9305 and 9306 are both O-rings, and the transparent end cap 92 is made of organic glass.
The second optical communication module 10 is disposed on the right side of the transparent end cap 92, and the signal modulation circuit 11 is disposed on the right side of the second optical communication module 10. The lead wire of the watertight cable 13 passes through the watertight socket 94, passes through the screw hole 932 and the large-diameter hole 933, and is electrically connected to the connection terminal 110 provided in the signal modulation circuit 11.
Before the deep submergence vehicle submerges, the communication transmission unit 3 is fixed on the driving arm 141 of the mechanical arm 14, then the deep submergence vehicle submerges with the communication transmission unit 3, and after the communication transmission unit 3 reaches a hot liquid area, a submergence vehicle operates the mechanical arm 14, controls the driving arm 141, and drives the clamping jaw 140 to grab the bracket 7 on the temperature measuring unit 2. The sleeve 40 with the thermocouple wires on the detection module 4 is inserted into the hot liquid spout together with the protective sleeve 43 to measure its temperature. The analog voltage signal generated by the thermocouple wire is processed by the circuit board 510, and then converted into a digital signal corresponding to the temperature after amplification processing, the digital signal is converted into a corresponding temperature detection optical signal through the first optical communication module 8, the temperature detection optical signal is emitted to the external environment through the light-transmitting end cover 64, and then is received by the photodiode on the second optical communication module 10 through the light-transmitting end cover 92, the received optical signal is converted into an electrical signal again by the second optical communication module 10, and the electrical signal is processed by the signal modulation circuit 11 and then is transmitted back to the interior of the deep diving vehicle through the watertight cable 13. The process of sending a control command to the temperature measuring device in the submersible is opposite to the process, namely a control electric signal is output to the second optical communication module 10 through a watertight cable, the control electric signal is converted into a control optical signal by the second optical communication module, the control optical signal is sent to the external environment through the second light-transmitting end cover, is received by the first optical communication module through the first light-transmitting end cover, is converted into a control electric signal and is output to the control module of the temperature measuring unit to control the temperature measuring device to start and carry out temperature measuring treatment, namely in the working process, after the control mechanical arm inserts the front end of the temperature measuring unit into the hot liquid port, the submersible sends a command for starting temperature measuring through the watertight cable. In this embodiment, the signal processing module uses an MSP430f149 single chip microcomputer produced by the american TI company as a main control chip, and then uses its own integrated 12-bit ADC as an analog-to-digital converter.
When the protective cover 43 and the sleeve 40 are clamped in the hot liquid nozzle due to bending deformation or other reasons during use, the clamping jaws 140 are controlled to release the temperature measuring unit 2, so as to ensure the safety of the submersible vehicle.
In the above-described embodiment, "left end" constitutes "front end" in the present invention, "right end" constitutes "rear end" and "right side" in the present invention constitutes "rear side" in the present invention, "left open end" constitutes "front open end" in the present invention, and "right open end" constitutes "rear open end" in the present invention; the screw holes 601 correspondingly constitute "first screw holes" in the present invention, and the screw holes 602 correspondingly constitute "second screw holes" in the present invention; the screw holes 6320 correspond to "third screw holes" in the present invention, the screw holes 901 correspond to "fourth screw holes" in the present invention, and the screw holes 902 correspond to "fifth screw holes" in the present invention; the mounting through-hole 6300 corresponds to a "first mounting through-hole" in the present invention, the mounting through-hole 620 corresponds to a "second mounting through-hole" in the present invention, the mounting through-hole 9300 corresponds to a "third mounting through-hole" in the present invention, the mounting through-hole 910 corresponds to a "fourth mounting through-hole" in the present invention, and the mounting through-hole 440 corresponds to a "fifth mounting through-hole" in the present invention; the communication hole 633 corresponds to a "first communication hole" in the present invention, and the communication hole 610 corresponds to a "second communication hole" in the present invention.
The mounting case 6 correspondingly constitutes a "first mounting case" in the present invention, and the mounting case 9 correspondingly constitutes a "second mounting case" in the present invention; the cylindrical body 60 correspondingly constitutes a "first cylindrical body" in the present invention, and the cylindrical body 90 correspondingly constitutes a "second cylindrical body" in the present invention; the pressing ring 62 corresponds to a "first pressing ring" in the present invention, and the pressing ring 91 corresponds to a "second pressing ring" in the present invention; the end cap 63 correspondingly constitutes a "first end cap" in the present invention, and the end cap 93 correspondingly constitutes a "second end cap" in the present invention; the light-transmitting end cap 64 correspondingly constitutes a "first light-transmitting end cap" in the present invention, and the light-transmitting end cap 92 correspondingly constitutes a "second light-transmitting end cap" in the present invention; the inner shoulder 600 correspondingly constitutes a "first inner shoulder" in the present invention, and the inner shoulder 900 correspondingly constitutes a "second inner shoulder" in the present invention; the shoulder 630 correspondingly constitutes a "first shoulder" in the present invention, and the shoulder 930 correspondingly constitutes a "second shoulder" in the present invention; the seal ring groove 631 corresponds to a "first seal ring groove" in the present invention, the seal ring groove 603 corresponds to a "second seal ring groove" in the present invention, the seal ring groove 903 corresponds to a "third seal ring groove" in the present invention, and the seal ring groove 931 corresponds to a "fourth seal ring groove" in the present invention.
Claims (9)
1. A deep sea temperature measuring device based on optical communication comprises a manipulator, a temperature measuring device and a watertight cable, wherein the manipulator comprises a driving arm and a clamping jaw arranged on the moving end of the driving arm; the method is characterized in that:
the temperature measuring device comprises a temperature measuring unit and a communication transmission unit which are separated by a gap, the communication transmission unit is fixed on the moving end, and the temperature measuring unit is releasably clamped on the clamping jaw;
the temperature measuring unit comprises a detection module for detecting temperature, a signal processing module for converting an analog voltage signal acquired by the detection module into a digital signal, and a first optical communication module; the first optical communication module is used for converting the digital signal into a temperature detection optical signal and sending the temperature detection optical signal to an external environment, converting a control optical signal received from the external environment into a control electrical signal and outputting the control electrical signal to the control unit of the temperature measurement unit; the communication transmission unit is used for receiving the temperature detection optical signal, reducing the optical signal into a temperature detection electrical signal, transmitting the temperature detection electrical signal into the submersible vehicle through the watertight cable, converting a control electrical signal received through the watertight cable into the control optical signal and transmitting the control optical signal to the external environment;
the temperature measuring unit comprises a watertight first mounting shell, the detection module fixedly connected to the front end part of the first mounting shell, and the signal processing module and the first optical communication module which are arranged in the first mounting shell in a watertight manner;
the first mounting shell comprises a first cylindrical body, a first end cover and a first light-transmitting end cover, wherein the first end cover is sleeved on the front open end of the first cylindrical body in a watertight manner, and the first light-transmitting end cover is sleeved on the rear open end of the first cylindrical body in a watertight manner;
the middle part of the inner cavity wall of the first cylindrical body is raised to form a first inner shoulder, the front end surface is concavely formed with a first screw hole, and the rear end surface is concavely formed with a second screw hole; a partition board for dividing the inner cavity into a battery compartment and a circuit compartment is sleeved in the middle of the inner cavity of the first cylindrical body, and a second communicating hole is formed in the middle of the partition board; a second sealing ring groove is formed in the inner cavity wall of the first cylindrical body and is positioned at the rear end part of the first inner shoulder in a concave mode; the battery compartment is arranged between the first end cover and the partition plate, and the circuit compartment is arranged between the first light-transmitting end cover and the partition plate;
the first end cover is of a columnar structure, a first shaft shoulder is convexly formed at the front end part of the outer peripheral surface of the first end cover, a plurality of first mounting through holes which are uniformly distributed around the axis of the first shaft shoulder are arranged on the first shaft shoulder, a first sealing ring groove is concavely formed at the rear end part of the outer peripheral surface, an annular sleeve seat is convexly arranged in the middle area of the end surface of the front end part, an inner hole of the sleeve seat is a third screw hole, and the bottom end of the third screw hole extends along the axial direction to form a first connecting through hole which penetrates through the first end cover;
a screw penetrates through the first mounting through hole and is screwed with the first screw hole, so that the first end cover is fixed on the front end part of the first cylindrical body, and an elastic sealing ring tightly pressed between the first sealing ring groove and the inner cavity wall of the first cylindrical body is sleeved on the first sealing ring groove;
lay first clamping ring on the rear end portion of first cylindric body, be equipped with a plurality of second installation through-holes that evenly arrange around its axis on the first clamping ring, the screw passes behind the second installation through-hole, with the second screw closes soon, and will first clamping ring is fixed on the rear end portion of first cylindric body, and will first printing opacity end cover sticis in first interior shoulder with between the first clamping ring, and second sealing ring inslot cover is equipped with and sticiss in second sealing ring groove with elastic seal circle between the inner chamber wall of first cylindric body.
2. The deep-sea thermometry apparatus of claim 1, wherein:
the first optical communication module receives the control optical signal and emits the temperature detection optical signal through a first light-transmitting shell part on the first mounting shell;
the communication transmission unit comprises a watertight second mounting shell, a signal modulation circuit board and a second optical communication module, wherein the signal modulation circuit board and the second optical communication module are mounted in the second mounting shell, and the second optical communication module is used for sending the control optical signal and receiving the temperature detection optical signal through a second light-transmitting shell on the second mounting shell.
3. The deep-sea thermometry apparatus of claim 2, wherein:
the first light transmissive casing portion includes the first light transmissive end cap;
the second mounting shell comprises a second cylindrical body, a second light-transmitting end cover, a second end cover and a watertight seat, wherein the second light-transmitting end cover is sleeved on the front open end of the second cylindrical body in a watertight manner; the second light transmissive casing portion includes the second light transmissive end cap; the end part of the watertight cable is fixedly connected with the second mounting shell in a watertight manner through the watertight seat.
4. The deep-sea thermometry apparatus of claim 3, wherein:
the first light-transmitting end cover is organic glass.
5. The deep-sea thermometry apparatus of claim 4, wherein:
the body of the first light-transmitting end cover is of a cylindrical structure;
the signal processing module comprises a battery arranged in the battery cabin and a circuit board arranged in the circuit cabin; the first optical communication module comprises a light emitting device and a light receiving device which are fixed on the circuit board;
the circuit board is arranged on the rear side of the clapboard; the first optical communication module is arranged at the rear side of the circuit board; and a signal wire of the detection module sequentially penetrates through the first communication hole, the inner cavity of the battery compartment and the second communication hole of the partition plate and then is electrically connected with a wiring terminal arranged on the circuit board.
6. The deep-sea thermometry apparatus of claim 3, wherein:
a second inner shoulder is convexly formed at the front end part of the inner cavity wall of the second cylindrical body, a fourth screw hole is concavely formed in the front end surface, a fifth screw hole is concavely formed in the rear end surface, and a third sealing ring groove is concavely formed in the inner cavity wall of the front end part;
the second end cover is of a columnar structure, a second shaft shoulder is convexly formed at the rear end part of the outer peripheral surface of the second end cover, and a fourth sealing ring groove is concavely formed at the front end part of the outer peripheral surface of the second end cover; the second shaft shoulder is provided with a plurality of third mounting through holes which are uniformly distributed around the axis of the second shaft shoulder; a large-diameter hole is concavely formed in the central area of the front end face of the second end cover, a small-diameter screw hole is concavely formed in the central area of the rear end face of the second end cover, and the large-diameter hole is communicated with the small-diameter screw hole; the end part of the watertight seat and the small-diameter screw hole are fixed on the rear end surface of the second end cover in a screwing manner;
a second pressing ring is arranged at the front end part of the second cylindrical body, and a plurality of fourth mounting through holes which are uniformly distributed around the axis of the second pressing ring are formed in the second pressing ring; a screw penetrates through the fourth mounting through hole and then is screwed with the fourth screw hole, so that the second compression ring is fixed on the rear end part of the second cylindrical body, the second light-transmitting end cover is tightly pressed between the second inner shoulder and the second compression ring, and an elastic sealing ring tightly pressed between the third sealing ring groove and the inner wall of the second cylindrical body is sleeved on the third sealing ring groove;
the fourth seal ring groove is sleeved with an elastic seal ring which is tightly pressed between the fourth seal ring groove and the inner cavity wall of the second cylindrical body; and after passing through the third mounting through hole, a screw is screwed with the fifth screw hole, so that the second end cover is fixed on the front end part of the second cylindrical body.
7. The deep-sea thermometry apparatus of claim 6, wherein:
the body of the second light-transmitting end cover is of a cylindrical structure;
the second optical communication module comprises an optical receiving device and an optical emitting device, the optical receiving device comprises a photodiode fixed on the signal modulation circuit board, and the optical emitting device comprises a light emitting diode fixed on the signal modulation circuit board;
the second optical communication module is arranged at the rear side of the second light-transmitting end cover, and the signal modulation circuit board is arranged at the rear side of the optical communication module; the leading wire of the watertight cable passes through the small-diameter screw hole and the large-diameter hole after passing through the watertight seat, and is electrically connected with a wiring terminal arranged on the signal modulation circuit board;
the second light-transmitting end cover is organic glass.
8. The deep sea thermometry apparatus of any one of claims 3 through 7, wherein:
the detection module comprises a sleeve, a thermocouple wire sleeved in the sleeve, a pressing cap, an end cap and a protective sleeve fixedly connected to the end cap;
the protective sleeve is sleeved outside the sleeve, the front end of the protective sleeve is an open end, the sleeve does not extend out of the protective sleeve, and a gap is reserved between the outer pipe wall of the sleeve and the inner cavity wall of the protective sleeve;
the pressing cap is used for fixing the rear end of the sleeve on the front end part of the first cylindrical body in a watertight manner, and the end cap is fixed on the front end part of the first cylindrical body in a buckled manner;
the thermocouple wire penetrates through the communicating hole in the first cylindrical body in a watertight manner and is electrically connected with the wiring terminal on the circuit board, so that the temperature detection analog signal is transmitted to the signal processing module.
9. The deep-sea temperature measuring apparatus according to claim 4 or 5, wherein:
the detection module comprises a sleeve, a thermocouple wire sleeved in the sleeve, a pressing cap, an end cap and a protective sleeve fixedly connected to the end cap;
the protective sleeve is sleeved outside the sleeve, the front end of the protective sleeve is an open end, the sleeve does not extend out of the protective sleeve, and a gap is reserved between the outer pipe wall of the sleeve and the inner cavity wall of the protective sleeve;
the pressing cap is used for fixing the rear end of the sleeve on the front end part of the first cylindrical body in a watertight manner, and the end cap is fixed on the front end part of the first cylindrical body in a buckled manner;
the thermocouple wire penetrates through the communication hole in the first cylindrical body in a watertight manner and is electrically connected with a wiring terminal on a circuit board so as to transmit a temperature detection analog signal to the signal processing module;
the protective sleeve is fixedly connected to the central area of the end cap, a third communication hole for communicating the inner hole of the protective sleeve with the inner cavity of the end cap is formed in the central area, and a plurality of fifth mounting through holes which are uniformly distributed around the axis of the end cap are formed in the end cap; the pressure cap is provided with a fourth communication hole which is sleeved outside the fixed end part of the sleeve, and the thermocouple wire is sleeved in the sleeve; the pressing cap is fixed in the third screw hole through a thread structure; a screw penetrates through the fifth mounting through hole and the first mounting through hole in sequence and is screwed with the first screw hole in the first cylindrical body, so that the detection module is fixed on the front end part of the first cylindrical body;
the sleeve is a titanium tube with one end sealed.
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| CN110836958B (en) * | 2019-10-28 | 2021-02-02 | 浙江大学 | Integrated multifunctional deep sea water body sampling probe |
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| CN100346366C (en) * | 2005-11-14 | 2007-10-31 | 浙江大学 | Deep-sea non-contact type signal transmitting device based on LED optical communication |
| CN207923312U (en) * | 2018-03-21 | 2018-09-28 | 中国科学院海洋研究所 | Hydrothermal vent fluid in-situ temperature sensing system for ROV platforms |
| CN109186796A (en) * | 2018-10-15 | 2019-01-11 | 江苏久创电气科技有限公司 | A kind of CT formula passive wireless temperature measuring device applied to switchgear |
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