CN109474277B - Analog-to-digital converter in ship system - Google Patents
Analog-to-digital converter in ship system Download PDFInfo
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- CN109474277B CN109474277B CN201811087334.1A CN201811087334A CN109474277B CN 109474277 B CN109474277 B CN 109474277B CN 201811087334 A CN201811087334 A CN 201811087334A CN 109474277 B CN109474277 B CN 109474277B
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 23
- 230000003750 conditioning effect Effects 0.000 claims abstract description 9
- 239000003990 capacitor Substances 0.000 claims description 7
- 230000017525 heat dissipation Effects 0.000 claims description 3
- 230000007175 bidirectional communication Effects 0.000 claims description 2
- 230000006854 communication Effects 0.000 abstract description 2
- 238000004891 communication Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/12—Analogue/digital converters
- H03M1/124—Sampling or signal conditioning arrangements specially adapted for A/D converters
- H03M1/1245—Details of sampling arrangements or methods
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- Engineering & Computer Science (AREA)
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Abstract
The invention discloses an analog-to-digital converter in a ship system, which comprises a shell, wherein an analog-to-digital conversion circuit is arranged in a hollow part in the shell, a guide rail embedded in the surface of the ship is arranged at the bottom of the shell, an analog signal acquisition port for acquiring analog signals is arranged at one end of the surface of the shell, a digital signal output interface is arranged at the other end of the surface of the shell, the analog signal acquisition port transmits the acquired analog signals to a signal conditioning circuit, the analog-to-digital conversion circuit is connected with a microprocessor, two-way communication is adopted between the analog-to-digital conversion circuit and the microprocessor, and the microprocessor is connected with the digital signal output interface. Realizes that domestic equipment replaces original imported equipment, has small volume and is convenient to arrange and install. The equipment has the advantages of short production period, good compatibility, wide application range and high cost performance, and can solve the problems of upgrading, expanding, maintaining and replacing devices for the system in time for customers. Has certain economic value and practical value, is a good innovation scheme, and has great market popularization prospect.
Description
Technical Field
The invention relates to the technical field of signal processing, in particular to an analog-to-digital converter in a ship system.
Background
The analog signal acquisition unit is used for acquiring analog signals of the sensor, converting the analog signals into digital signals and providing the digital signals for the ship comprehensive display system, and the Sperry analog signal acquisition unit is large in size, single in specification, large in space waste and difficult to arrange and install in a narrow space on a ship. And the price of import equipment is higher, and the purchasing period is longer. The system has longer period in the aspects of upgrading, expanding, maintaining and replacing devices, can not solve the problems for customers in time, has poor practicality and can not meet the requirements of social development.
In view of the foregoing, in order to solve the drawbacks of the prior art, there is a particular need for an analog-to-digital converter in a marine system.
Disclosure of Invention
Aiming at the problems in the prior art and causing the limitation of examination and evaluation of crewman, the invention provides an analog-to-digital converter in a ship system, which is novel in design, and solves the problems that the original equipment is large in size and difficult to install, the purchasing period of imported equipment is long, and the device can not be timely updated, expanded, maintained and replaced for a customer. Has certain economic value and practical value and solves the defects of the prior art.
In order to achieve the above object, the technical scheme of the present invention is as follows:
the analog-to-digital converter comprises a shell, wherein an analog-to-digital conversion circuit is arranged in a hollow part in the shell, a guide rail embedded in the surface of the ship is arranged at the bottom of the shell, an analog signal acquisition port for acquiring analog signals is arranged at one end of the surface of the shell, a digital signal output interface is arranged at the other end of the surface of the shell, the analog signal acquisition port acquires the ship signals including power, rotating speed, screw pitch and power of a propeller, the analog signal acquisition port transmits the acquired analog signals to a signal conditioning circuit, the signal conditioning circuit comprises a capacitor, an output port of the capacitor is connected with a comparator through a first resistor, one port of the comparator is connected with a base electrode of a triode through a second resistor, the other port of the comparator is connected with a radioactive electrode of the triode through an adjustable resistor, a collector electrode of the triode is connected with the analog-to-digital conversion circuit through a fourth resistor, the analog-to-digital conversion circuit is connected with a microprocessor, and two-way communication is adopted between the analog-to-digital conversion circuit and the microprocessor.
Further, the shell is rectangular in shape, the length of the shell is 179mm, the width of the shell is 108mm, and the surface of the shell is uniformly provided with heat dissipation holes.
Further, the signals collected by the analog signal collection port are +/-10V or 4-20mA.
Furthermore, the digital signal output interface outputs digital signals conforming to the IEC 61162-1 standard, and the digital signal interface is an RS422 interface.
The microprocessor is externally connected with a display for displaying processing data.
Further, the microprocessor adopts a singlechip, and the microprocessor adopts an AT89S53 singlechip.
Furthermore, the microprocessor is internally provided with special software for converting and encoding by software.
Further, a control switch for realizing gain switching is arranged in the analog-to-digital conversion circuit.
Further, the resistance value of the adjustable resistor is 0-100KΩ.
The beneficial effects of the invention are as follows: the design is novel, and domestic equipment can replace original import equipment. The volume is small, and the arrangement and the installation are convenient. The equipment has the advantages of short production period, good compatibility, wide application range and high cost performance, and can solve the problems of upgrading, expanding, maintaining and replacing devices for the system in time for customers. Has certain economic value and practical value and excellent practical performance, is a good innovation scheme, and has great market popularization prospect.
Drawings
The invention is described in detail below with reference to the attached drawing figures and the detailed description:
FIG. 1 is a schematic block diagram of the present invention;
FIG. 2 is a functional diagram of an analog-to-digital converter according to the present invention;
FIG. 3 is a diagram of the external configuration of the present invention;
fig. 4 is a circuit diagram of the signal conditioning of the present invention.
In the figure, the device comprises a 100-analog-digital conversion circuit, a 110-signal conditioning circuit, a 120-analog signal acquisition port, a 130-microprocessor, a 140-special software, a 150-digital signal output interface, a 160-shell, a 170-guide rail, a 180-heat dissipation hole, a 111-capacitor, a 112-first resistor, a 113-comparator, a 114-second resistor, a 115-adjustable resistor, a 116-triode and a 117-fourth resistor.
Detailed Description
The invention is further described with reference to the following detailed drawings in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the implementation of the invention easy to understand.
Referring to fig. 1, fig. 2, fig. 3, and fig. 4, an analog-digital converter in a ship system includes a housing 160, a hollow portion inside the housing 160 is provided with an analog-digital conversion circuit 100, a bottom of the housing 160 is provided with a guide rail 170 embedded in a surface of the ship, one end of a surface of the housing 100 is provided with an analog signal acquisition port 120 for acquiring analog signals, another end of the surface of the housing 100 is provided with a digital signal output interface 150, the analog signal acquisition port 120 acquires the ship signals including power, rotation speed, pitch and power of a propeller, the analog signal acquisition port 120 transmits the acquired analog signals to a signal conditioning circuit 110, the signal conditioning circuit 110 includes a capacitor 111, an output port of the capacitor 111 is connected with a comparator 113 through a first resistor 112, one port of the comparator 113 is connected with a base electrode of a triode 116 through a second resistor 114, another port of the comparator 113 is connected with a radial electrode of the triode 116 through a fourth resistor 117, the collector electrode of the triode 116 is connected with the analog-digital conversion circuit 100, the analog-digital conversion circuit 100 is connected with a microprocessor 130, bidirectional communication is adopted between the analog-digital conversion circuit 100 and the microprocessor 130, and the microprocessor 130 is connected with the digital signal output interface 150.
The casing 160 is rectangular in shape, the length of the casing 160 is 179mm, the width of the casing 160 is 108mm, and the surface of the casing 160 is uniformly distributed with heat dissipation holes 180. The analog signal acquisition port 120 acquires a signal of +/-10V or 4-20mA. The digital signal output interface 150 outputs a digital signal conforming to the IEC 61162-1 standard, and the interface of the digital signal is an RS422 interface. The microprocessor 130 is externally connected with a display for displaying the processing data. The microprocessor 130 adopts a singlechip, and the microprocessor 130 adopts an AT89S53 singlechip. The microprocessor 130 has installed therein dedicated software 140 encoded with software transformations. The analog-to-digital conversion circuit 100 is internally provided with a control switch for realizing gain switching. The resistance of the adjustable resistor 117 is 0-100K omega.
The analog-to-digital converter is mainly used for converting the acquired analog signals of the external sensor into digital signals and outputting the digital signals. Analog signals of +/-10V or 4-20mA can be collected, and digital signals conforming to IEC 61162-1 standard and RS422 interface can be output through linear conversion. The digital signals are converted and encoded by special software which is customized and developed, and the digital signals which are analyzed can be identified by the ship comprehensive display system, so that information such as sensor graphics or numerical values and the like can be displayed on a display.
The device can collect the power, rotation speed and pitch analog signals of the bow-pushing propeller/the stern-pushing propeller of the ship, and the power and rotation speed analog signals of 2 main propellers. The integrated display system of output ship can recognize the digital signal resolved by circuit conversion and special software coding, so as to display the information such as sensor graph or numerical value on the display.
The analog-to-digital converter selects +/-10V or 4-20mA analog signals through software setting, sets upper and lower limit range values of the analog signals, adjusts zero positions, selects a conversion model and the like, and is convenient for engineers to debug equipment on site. The output digital signal can be played back, interpreted, checked in a computer.
Besides the analog signals of the upper sensor, the invention can also collect analog signals of +/-10V or 4-20mA such as rudder angle, temperature, pressure and the like, has upper and lower limit range values, can perform linear conversion on the analog signals, and can output digital signals which can be identified and analyzed by a ship comprehensive display system through circuit conversion and special software coding.
The beneficial effects of the invention are as follows: the design is novel, and domestic equipment can replace original import equipment. The volume is small, and the arrangement and the installation are convenient. The equipment has the advantages of short production period, good compatibility, wide application range and high cost performance, and can solve the problems of upgrading, expanding, maintaining and replacing devices for the system in time for customers. Has certain economic value and practical value and excellent practical performance, is a good innovation scheme, and has great market popularization prospect.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. An analog-to-digital converter in a marine system, comprising a housing, characterized in that: the device comprises a shell, wherein a hollow part in the shell is provided with an analog-to-digital conversion circuit, a guide rail embedded in the surface of a ship is arranged at the bottom of the shell, an analog signal acquisition port for acquiring analog signals is arranged at one end of the surface of the shell, a digital signal output interface is arranged at the other end of the surface of the shell, the analog signal acquisition port acquires the ship signals including power, rotating speed, screw pitch and power of a propeller, the analog signal acquisition port transmits the acquired analog signals to a signal conditioning circuit, the signal conditioning circuit comprises a capacitor, an output port of the capacitor is connected with a comparator through a first resistor, one port of the comparator is connected with a base electrode of a triode through a second resistor, the other port of the comparator is connected with a radiating electrode of the triode through an adjustable resistor, a collector electrode of the triode is connected with the analog-to-digital conversion circuit through a fourth resistor, the analog-to-digital conversion circuit is connected with a microprocessor, and the microprocessor is in bidirectional communication with the digital signal output interface; the microprocessor is internally provided with special software for converting and encoding by software, and converts the acquired analog signals of the external sensor into digital signals for output; the digital signals are converted and encoded by special software, the digital signals which can be identified and analyzed by the ship comprehensive display system are output, and sensor graphics or numerical information is displayed on a display.
2. An analog-to-digital converter in a marine system according to claim 1, characterized in that: the shell is rectangular in shape, the length of the shell is 179mm, the width of the shell is 108mm, and heat dissipation holes are uniformly distributed on the surface of the shell.
3. An analog-to-digital converter in a marine system according to claim 1, characterized in that: the signals collected by the analog signal collection port are +/-10V or 4-20mA.
4. An analog-to-digital converter in a marine system according to claim 1, characterized in that: the digital signal output interface outputs a digital signal conforming to the IEC 61162-1 standard, and the interface of the digital signal is an RS422 interface.
5. An analog-to-digital converter in a marine system according to claim 1, characterized in that: the microprocessor is externally connected with a display for displaying the processed data.
6. An analog-to-digital converter in a marine system according to claim 1, characterized in that: the microprocessor adopts a singlechip, and the microprocessor adopts an AT89S53 singlechip.
7. An analog-to-digital converter in a marine system according to claim 1, characterized in that: and a control switch for realizing gain switching is arranged in the analog-digital conversion circuit.
8. An analog-to-digital converter in a marine system according to claim 1, characterized in that: the resistance value of the adjustable resistor is 0-100KΩ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811087334.1A CN109474277B (en) | 2018-09-18 | 2018-09-18 | Analog-to-digital converter in ship system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811087334.1A CN109474277B (en) | 2018-09-18 | 2018-09-18 | Analog-to-digital converter in ship system |
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| Publication Number | Publication Date |
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| CN109474277A CN109474277A (en) | 2019-03-15 |
| CN109474277B true CN109474277B (en) | 2024-01-16 |
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| CN201811087334.1A Active CN109474277B (en) | 2018-09-18 | 2018-09-18 | Analog-to-digital converter in ship system |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005109599A (en) * | 2003-09-29 | 2005-04-21 | Hitachi Ltd | Analog / digital conversion apparatus |
| CN1774689A (en) * | 2003-04-16 | 2006-05-17 | 索尼爱立信移动通讯股份有限公司 | Direct digital frequency synthesizer for cellular wireless communication systems based on fast frequency-hopped spread spectrum technology |
| CN106546322A (en) * | 2015-09-22 | 2017-03-29 | 上海交通大学 | Electronic formula car rear-view mirror surface vibration automatic detection device |
-
2018
- 2018-09-18 CN CN201811087334.1A patent/CN109474277B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1774689A (en) * | 2003-04-16 | 2006-05-17 | 索尼爱立信移动通讯股份有限公司 | Direct digital frequency synthesizer for cellular wireless communication systems based on fast frequency-hopped spread spectrum technology |
| JP2005109599A (en) * | 2003-09-29 | 2005-04-21 | Hitachi Ltd | Analog / digital conversion apparatus |
| CN106546322A (en) * | 2015-09-22 | 2017-03-29 | 上海交通大学 | Electronic formula car rear-view mirror surface vibration automatic detection device |
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| CN109474277A (en) | 2019-03-15 |
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