CN111174695A - Device and method for quickly measuring fish biological characteristic information and acquiring photo - Google Patents
Device and method for quickly measuring fish biological characteristic information and acquiring photo Download PDFInfo
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- CN111174695A CN111174695A CN201911181479.2A CN201911181479A CN111174695A CN 111174695 A CN111174695 A CN 111174695A CN 201911181479 A CN201911181479 A CN 201911181479A CN 111174695 A CN111174695 A CN 111174695A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G17/00—Apparatus for or methods of weighing material of special form or property
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/66—Remote control of cameras or camera parts, e.g. by remote control devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/90—Arrangement of cameras or camera modules, e.g. multiple cameras in TV studios or sports stadiums
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- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The invention discloses a device and a method for quickly measuring fish biological characteristic information and acquiring photos, wherein the device comprises a main body box; a guide bar; each clamping mechanism comprises a sliding block, a telescopic rod and a transparent clamp; the shooting mechanism comprises six cameras; the infrared scanning mechanism comprises six groups of infrared transmitting units and infrared receiving units, wherein each infrared transmitting unit comprises an infrared transmitting diode and an infrared control circuit, and each infrared receiving unit comprises an infrared receiving tube and a demodulation circuit; the control mechanism comprises a single chip microcomputer, a control panel and a main control circuit. The device can quickly and conveniently measure and obtain relevant fish biological characteristic parameters, can simultaneously obtain the full-range photos of the fish and display the information characteristics of basic biology of the fish, and has the advantages of simple operation, low manufacturing cost, good real-time performance, quick and convenient use and convenient carrying, namely carrying and walking.
Description
Technical Field
The invention relates to the field of biological monitoring and measurement, in particular to a device and a method for quickly measuring fish biological characteristic information and acquiring a photo.
Background
The fishes have diversity on morphological characteristics, most fishes are fusiform, scales are arranged on the body surfaces of the fishes, mucus can be secreted, and resistance in movement is reduced. The fish live in seawater or fresh water for the whole life, mostly have the shape and fins suitable for swimming, and the fish breathe by gills and prey on the upper jaw and the lower jaw. Due to the diversity of water areas, water layers, water quality, biological factors, non-biological factors and other water environments in water, the body state structure of fishes changes differently to adapt to different changes of the outside. Fish are the oldest vertebrates. They inhabit almost all aquatic environments on earth, from lakes and rivers in fresh water to seas and oceans in salt water. The fish is a temperature-variable vertebrate which lives in water throughout the year, breathes by gills, and assists body balance and movement by fins. The last approximately 20000 species have been identified as the most primitive lowest level of the vertebrate subgenus. The fish meat is rich in animal protein, phosphorus and the like, has rich nutrition and delicious taste, is easy to digest and absorb by human bodies, and has important effect on the development of human physical strength and intelligence. The other part of the fish body can be made into cod liver oil, fish gelatin, fish meal, etc. Some fishes such as goldfish, tropical fish, etc. have various physical states and bright colors, and have higher ornamental value. The conventional fish shape measuring device has the following defects: 1) the operation time is long, and the fish leaves water for a long time, so that the fish is easy to die; 2) data are required to be recorded on site, errors are easy to occur during mass measurement, and data are inconvenient to file and call; 3) the fish is three-dimensional, each face is different, the photo is difficult to obtain, the photo of a single face is distorted, and the real characteristics of the fish cannot be displayed. Based on the background, the invention relates to a device and a method for quickly measuring fish biological characteristic information and acquiring photos, which can quickly and conveniently measure and acquire related fish biological characteristic parameters, can simultaneously acquire fish full-range photos and display the information characteristics of basic biology of fish, and have important help and significance for basic research science.
Disclosure of Invention
The invention aims to provide a device and a method for quickly measuring fish biological characteristic information and acquiring photos, which utilize infrared scanning and measuring functions to monitor, detect and monitor fish behavior activities and living water quality and can obtain basic information related to the biological characteristics of the fish.
The device for rapidly measuring fish biological characteristic information and acquiring photos comprises:
the main body box is cuboid or cubic;
the guide rod is horizontally arranged on the main body box along the middle line of the main body box;
each clamping mechanism comprises a sliding block, a telescopic rod and a transparent clamp, the two sliding blocks are slidably matched on the guide rod, the upper end of the telescopic rod is connected with the sliding block, and the transparent clamp is connected to the lower end of the telescopic rod;
the shooting mechanism comprises six cameras, and the six cameras are mounted in the central areas of six surfaces of the main body box;
the infrared scanning mechanism comprises six groups of infrared transmitting units and infrared receiving units, wherein each infrared transmitting unit comprises an infrared transmitting diode and an infrared control circuit, and each infrared receiving unit comprises an infrared receiving tube and a demodulation circuit; the infrared emitting diodes and the infrared receiving tubes are arranged on six surfaces of the main body box in an array mode (the area where the cameras are installed can be not arranged), and each group of the infrared emitting diodes and the infrared receiving tubes are oppositely arranged on opposite surfaces;
the control mechanism comprises a singlechip, a control panel and a main control circuit; the single chip microcomputer is connected with and controls the control panel, the shooting mechanism and the infrared scanning mechanism through a master control circuit.
The method for rapidly measuring the biological characteristic information of the fish and acquiring the photo comprises the following steps:
a) the fish to be detected is placed into the device for quickly measuring the biological characteristic information of the fish and obtaining the photos, the two transparent clamps are used for clamping the near head part and the near tail part of the fish to be detected respectively, and the position of the fish to be detected is adjusted through the sliding block and the telescopic rod, so that the fish to be detected is positioned in the middle of the main box;
b) sending a shooting command to the single chip microcomputer through the control panel, and further controlling the camera to shoot or pick up the picture through the main control circuit by the single chip microcomputer and storing the picture data by the single chip microcomputer;
c) the infrared scanning device comprises a control panel, a singlechip, an infrared control circuit, a demodulation circuit, infrared receiving tubes, infrared scanning tubes, infrared emitting diodes, infrared receiving tubes and infrared scanning tubes, wherein the control panel sends an infrared scanning command to the singlechip, the singlechip controls and lights the infrared emitting diodes through the infrared control circuit, the infrared receiving tubes in the middle areas of six surfaces cannot receive infrared rays sent by the infrared emitting diodes due to shielding of fish to be detected to generate normal electric signals different from other infrared receiving tubes, and the;
d) the data power line is connected with a computer, the tested photo data and the infrared scanning data are uploaded to the computer, and the photo and the size data of the fish to be tested are analyzed and displayed by the computer.
In some preferred embodiments of the present invention, a weighing mechanism is further disposed at the bottom of the main body box. The weighing mechanism can adopt the conventional weight sensor or an electronic scale for proper transformation; for example, the whole main body box is supported by arranging a support plate, and the structure below the support plate refers to an electronic scale or a weighing scale. The weighing mechanism is connected with the single chip microcomputer, and can send a weighing result to the single chip microcomputer so as to be processed by the single chip microcomputer. The weight difference of the front main box and the rear main box for putting the fishes is sensed through the weighing mechanism, so that the weight of the put fishes can be measured.
The power of the device can be realized by a built-in battery or an external power supply.
In some preferred embodiments of the present invention, the weighing device further comprises a battery for supplying power to the control mechanism, the shooting mechanism, the infrared scanning mechanism and the weighing mechanism. The battery can be arranged on the bottom or the side wall of the main body box.
In some preferred embodiments of the present invention, the present invention further comprises a data power line connected to the single chip, and the external end of the data power line is connected to a USB interface for connecting a power adapter or a computer. On one hand, the device can be powered by connecting the data power line with a power adapter, and when a battery is arranged in the device, the battery can be charged; on the other hand, the data power line is connected with a computer or other display equipment, and test data can be uploaded to the computer or other display equipment.
In some preferred embodiments of the present invention, the wireless transceiver module is used for wireless signal interaction between the single chip microcomputer and the computer. The wireless transceiver module can be a wireless communication module with conventional medium-short distance transmission, such as a Bluetooth module, a radio frequency module and the like.
Preferably, the infrared control circuit is a triode drive circuit, and the infrared emitting diodes are grouped by using the triode drive circuit; the infrared receiving tube is the infrared receiving tube of TOSP1756 model, and demodulation circuit integration is inside TOSP 1756.
Preferably, the singlechip is an AT89S52 singlechip of ATMEL.
Preferably, the control panel is provided with a display screen and control buttons.
Preferably, the bottom surface of the main body box is provided with scale marks; furthermore, the scale of the middle point of the scale mark is zero, and the scale is gradually increased from the middle to the two ends. The setting of scale mark can be observed the approximate length and the width of the fish that awaits measuring on the one hand, and on the other hand can adjust the fish that awaits measuring to intermediate position comparatively accurately through the scale of observing the fish head that awaits measuring and afterbody.
Preferably, the upper surface of the main box is of a double-door structure and is provided with two handles. The double-door structure is convenient for putting in the fish to be detected; the handle is convenient for carrying the device.
Preferably, the central regions of the six surfaces of the main body box are respectively provided with a cross-shaped track, the camera is connected with a pulley, and the pulley is slidably matched on the cross-shaped track. The camera has certain home range because of the arrangement of the cross-shaped track and the pulley, and the physical sign information of the fish to be measured can be collected by properly adjusting the shooting position and the shooting angle.
Furthermore, each camera still is furnished with servo motor, the pulley by servo motor drives, servo motor's setting makes the activity of camera is more automatic, and it is more intelligent and accurate to adjust.
Preferably, the telescopic rod is an external locking type telescopic rod or a screw connection type telescopic rod and has two or more than two sections.
Furthermore, the telescopic rod is a transparent plastic telescopic rod.
The invention has the advantages that:
the invention provides a device and a method for rapidly measuring fish biological characteristic information and obtaining photos, which utilize a plurality of cameras and an infrared scanning mechanism arranged in the device to take photos and scan the fishes to be measured, can solve the defects that the traditional fish shape measuring device has long operation time, is easy to have errors during mass measurement, is inconvenient to file and fetch data, has fish photographing distortion and the like, simultaneously utilizes a display screen to carry out integrated control and display, is provided with related button keys to carry out switching and display functions, is provided with a battery box to carry out power supply and storage functions, and is provided with a USB interface to connect the obtained information and the omnibearing photos with a computer output function and the like.
The invention can quickly and conveniently measure and obtain related fish biological characteristic parameters, can simultaneously obtain fish full-range photos, displays the information characteristics of basic biology of the fish, and has important help and significance for basic research science. In addition, the device is simple to operate, low in manufacturing cost, good in real-time performance, fast and convenient to use, and convenient to carry and carry away.
Drawings
FIG. 1 is a perspective view of the apparatus for rapidly measuring fish biological characteristic information and obtaining a photograph of the present invention;
fig. 2 is a scanning schematic diagram of the infrared scanning mechanism of the present invention.
Reference numerals
Main part case 1, battery 2, guide arm 3, camera 4, slider 5, telescopic link 6, transparent 7 that press from both sides, handle 8, control panel 9, data power cord 10, USB interface 11, infrared emitting diode 12, infrared receiving tube 13.
Detailed Description
The present invention will be further described with reference to the following examples. It should be understood that the following examples are illustrative only and are not intended to limit the scope of the present invention.
Example 1
Fig. 1 shows an apparatus for rapidly measuring fish biological characteristic information and obtaining a photograph according to a preferred embodiment of the present invention, which comprises:
main part case 1 of cuboid, main part case 1 bottom have evenly distributed's battery 2, have accumulate and the power supply effect, have the scale mark on the 1 bottom surface of main part case. The upper surface of the main body box 1 is of a double-door structure, and two handles are arranged on the upper surface of the main body box and are convenient to open and carry.
The guide rod 3 is horizontally arranged on the main body box 1 along the middle line of the main body box 1;
each clamping mechanism comprises a sliding block 5, a telescopic rod 6 and a transparent clamp 7, the two sliding blocks 5 are slidably matched on the guide rod 3, the upper end of the telescopic rod 6 is connected with the sliding block 5, and the transparent clamp 7 is connected to the lower end of the telescopic rod and used for clamping fish;
the shooting mechanism comprises six cameras 4, and the six cameras 4 are arranged in the central areas of six surfaces of the main body box 1;
the infrared scanning mechanism comprises six groups of infrared transmitting units and infrared receiving units (not shown in figure 1), wherein each infrared transmitting unit comprises an infrared transmitting diode and an infrared control circuit, and each infrared receiving unit comprises an infrared receiving tube and a demodulation circuit; the infrared emitting diodes and the infrared receiving tubes are arranged on six surfaces of the main body box in an array mode (the area where the camera 4 is installed can be not arranged), and each group of infrared emitting diodes and each group of infrared receiving tubes are oppositely arranged on opposite surfaces;
the control mechanism comprises a singlechip, a control panel and a main control circuit; the singlechip is connected with the control panel, the shooting mechanism and the infrared scanning mechanism through the master control circuit. Wherein the singlechip is located main part bottom of the case portion, and control panel 9 is located in front of the main part case, and control panel 9 is equipped with display screen and control button, and control button includes switch button, shoots button, infrared scanning button etc..
Preferably, the infrared control circuit is a triode drive circuit, and the infrared emitting diodes are grouped by using the triode drive circuit; the infrared receiving tube is an infrared receiving tube of a TOSP1756 model, and the demodulation circuit is integrated in the TOSP 1756; the singlechip is AT89S52 singlechip of ATMEL. The components are all commercially available products.
And the data power line 10 is connected with the singlechip, and the outer end of the data power line 10 is connected with a USB interface 11 for connecting a power adapter or a computer. On one hand, the device can be powered by connecting a power adapter through a data power line, and a battery can also be charged; on the other hand, the test data can be uploaded to the display equipment such as a computer by connecting the computer or other display equipment through a data power line.
Preferably, the scale at the middle point of the scale mark is zero, and gradually increases from the middle to the two ends. The setting of scale mark can be observed the fish that awaits measuring roughly length and width on the one hand, and on the other hand can adjust the fish that awaits measuring to intermediate position comparatively accurately through the scale of observing the fish head that awaits measuring and afterbody.
Preferably, the central areas of the six surfaces of the main body box are respectively provided with a cross-shaped rail, the camera is connected with a pulley, and the pulley is in sliding fit on the cross-shaped rail. The camera has certain home range because of the arrangement of the cross-shaped track and the pulley, and the physical sign information of the fish to be measured can be collected by properly adjusting the shooting position and the shooting angle. Furthermore, each camera is still furnished with servo motor, and the pulley is driven by servo motor, and servo motor's setting makes the activity of camera more automatic, and it is more intelligent and accurate to adjust.
Preferably, the telescopic rod is an external locking type telescopic rod or a screw connection type telescopic rod and has two or more than two sections. Furthermore, the telescopic rod is a transparent plastic telescopic rod.
Preferably, the bottom of the main box is also provided with a weighing mechanism. The weighing mechanism can adopt the prior conventional weight sensor and can also adopt an electronic scale to be properly modified; for example, the whole main body box is supported by arranging a support plate, and the structure below the support plate refers to an electronic scale or a weighing scale. The weighing mechanism is connected with the single chip microcomputer, and can send a weighing result to the single chip microcomputer so as to be processed by the single chip microcomputer. The weight difference of the front main box and the rear main box for putting the fishes is sensed through the weighing mechanism, so that the weight of the put fishes can be measured.
The method for rapidly measuring the biological characteristic information of the fish and acquiring the photo comprises the following steps:
a) the fish to be detected is placed into the device for quickly measuring the biological characteristic information of the fish and acquiring the photos, the near head part and the near tail part of the fish to be detected are respectively clamped by two transparent clamps, and the position of the fish to be detected is adjusted through a sliding block and a telescopic rod so that the fish to be detected is positioned in the middle of the main box;
b) the weighing mechanism measures the weight of the fish to be measured and sends the weight to the single chip microcomputer;
c) sending a shooting command to the single chip microcomputer through the control panel, and then controlling a camera to shoot or pick up a picture and store picture data through the main control circuit by the single chip microcomputer;
d) the infrared scanning command is sent to the single chip microcomputer through the control panel, the single chip microcomputer controls and lights the infrared emitting diodes through the infrared control circuit, as shown in figure 2, the infrared emitting diodes 12 emit infrared rays to the infrared receiving tubes 13 corresponding to the opposite surfaces, the single chip microcomputer monitors the infrared receiving tubes through the demodulation circuit at the same time, the infrared receiving tubes in the middle areas of the six surfaces cannot receive the infrared rays emitted by the infrared emitting diodes due to the shielding of the fish to be detected to generate electric signals which are different from normal electric signals of other infrared receiving tubes, and the outlines of the fish to be detected can be reflected according to the position data of the infrared receiving tubes with different electric signals, so that the fish to be detected is subjected to six-sided three; preferably, the six surface scans can be scanned one by one, so that mutual interference is avoided;
e) the computer is connected through a data power line, the tested weight data, the photo data and the infrared scanning data are uploaded to the computer, and the photo and the size data of the fish to be tested are analyzed and displayed through the computer.
The invention provides a method for rapidly measuring fish biological characteristic information and obtaining photos, which utilizes a plurality of cameras and an infrared scanning mechanism arranged in a device to take photos and scan the fishes to be measured, can overcome the defects that the traditional fish form measuring device has long operation time, is easy to generate errors during large-batch measurement, is inconvenient to file and fetch data, is distorted in fish photographing and the like, simultaneously utilizes a display screen to carry out integrated control and display, is provided with related button keys for switching and displaying, is provided with a battery box for carrying out power supply and storage functions, and is provided with a USB interface for connecting the obtained information and the omnibearing photos with a computer output function and the like.
The invention can quickly and conveniently measure and obtain the biological characteristic parameters of related fishes, can simultaneously obtain the full-range photos of the fishes, displays the information characteristics of basic biology of the fishes, and has important help and significance for basic research science. In addition, the portable handle is arranged, so that the device can be carried and moved, the whole device is simple to operate, the cost is reduced, the real-time performance is good, and the device is practical, rapid and convenient.
While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (11)
1. An apparatus for rapidly measuring fish biological characteristic information and obtaining a photograph, comprising:
the main body box is cuboid or cubic;
the guide rod is horizontally arranged on the main body box along the middle line of the main body box;
each clamping mechanism comprises a sliding block, a telescopic rod and a transparent clamp, the two sliding blocks are slidably matched on the guide rod, the upper end of the telescopic rod is connected with the sliding block, and the transparent clamp is connected to the lower end of the telescopic rod;
the shooting mechanism comprises six cameras, and the six cameras are mounted in the central areas of six surfaces of the main body box;
the infrared scanning mechanism comprises six groups of infrared transmitting units and infrared receiving units, wherein each infrared transmitting unit comprises an infrared transmitting diode and an infrared control circuit, and each infrared receiving unit comprises an infrared receiving tube and a demodulation circuit; the infrared emitting diodes and the infrared receiving tubes are arranged on six surfaces of the main box in an array mode, and each group of the infrared emitting diodes and the infrared receiving tubes are arranged on opposite surfaces in a relative mode;
the control mechanism comprises a singlechip, a control panel and a main control circuit; the single chip microcomputer is connected with and controls the control panel, the shooting mechanism and the infrared scanning mechanism through a master control circuit.
2. The apparatus for rapidly measuring fish biological characteristic information and obtaining a picture according to claim 1, wherein a weighing mechanism is further provided at the bottom of the main body case.
3. The apparatus for rapidly measuring fish biological characteristic information and obtaining a picture according to claim 1, further comprising a battery for supplying power to the control mechanism, the photographing mechanism and the infrared scanning mechanism.
4. The device for rapidly measuring fish biological characteristic information and obtaining a photo according to claim 1, further comprising a data power line connected to the single chip, wherein a USB interface is connected to an outer end of the data power line for connecting a power adapter or a computer.
5. The apparatus for rapidly measuring fish biological characteristic information and obtaining a photo according to claim 1, wherein a scale mark is arranged on the bottom surface of the main body case, and the scale mark at the middle point of the scale mark is zero and gradually increases from the middle to the two ends.
6. The apparatus for rapidly measuring fish biological characteristic information and obtaining a photograph as claimed in claim 1, wherein the central regions of the six faces of the main body case are respectively provided with a cross-shaped rail, and the camera is connected with a pulley which is slidably fitted on the cross-shaped rail.
7. The apparatus for rapidly measuring fish biological characteristic information and obtaining a photo according to claim 1, wherein the retractable rod is an external locking retractable rod or a screw-connection retractable rod, and has two or more than two segments.
8. The apparatus for rapidly measuring fish biological characteristic information and obtaining photos as claimed in claim 1, wherein said infrared control circuit is a triode driving circuit, said infrared emitting diodes are grouped using triode driving circuit; the infrared receiving tube is the infrared receiving tube of TOSP1756 model, and demodulation circuit integration is inside TOSP 1756.
9. The apparatus for rapidly measuring fish biological characteristic information and obtaining a picture according to claim 1, wherein the control panel is provided with a display screen and control buttons.
10. The apparatus for rapidly measuring fish biological characteristic information and obtaining photos as claimed in claim 1, further comprising a wireless transceiver module for wireless signal interaction between said single chip and a computer.
11. A method for rapidly measuring fish biological characteristic information and obtaining a photo is characterized by comprising the following steps:
a) putting the fish to be measured into the device for rapidly measuring the biological characteristic information of the fish and obtaining the photo according to any one of claims 1 to 10, using two transparent clamps to respectively clamp the near head part and the near tail part of the fish to be measured, and adjusting the position of the fish to be measured through the sliding block and the telescopic rod to enable the fish to be measured to be positioned at the middle position of the main box;
b) sending a shooting command to the single chip microcomputer through the control panel, and further controlling the camera to shoot or pick up the picture through the main control circuit by the single chip microcomputer and storing the picture data by the single chip microcomputer;
c) the infrared scanning device comprises a control panel, a singlechip, an infrared control circuit, a demodulation circuit, infrared receiving tubes, infrared scanning tubes, infrared emitting diodes, infrared receiving tubes and infrared scanning tubes, wherein the control panel sends an infrared scanning command to the singlechip, the singlechip controls and lights the infrared emitting diodes through the infrared control circuit, the infrared receiving tubes in the middle areas of six surfaces cannot receive infrared rays sent by the infrared emitting diodes due to shielding of fish to be detected to generate normal electric signals different from other infrared receiving tubes, and the;
d) the data power line is connected with a computer, the tested photo data and the infrared scanning data are uploaded to the computer, and the photo and the size data of the fish to be tested are analyzed and displayed by the computer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911181479.2A CN111174695A (en) | 2019-11-27 | 2019-11-27 | Device and method for quickly measuring fish biological characteristic information and acquiring photo |
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| CN201911181479.2A CN111174695A (en) | 2019-11-27 | 2019-11-27 | Device and method for quickly measuring fish biological characteristic information and acquiring photo |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112763487A (en) * | 2020-12-09 | 2021-05-07 | 天津市水产研究所 | Aquatic livestock high-throughput scale type acquisition device |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112763487A (en) * | 2020-12-09 | 2021-05-07 | 天津市水产研究所 | Aquatic livestock high-throughput scale type acquisition device |
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