CN108200414A - Boat-carrying monitoring system and power circuit - Google Patents
Boat-carrying monitoring system and power circuit Download PDFInfo
- Publication number
- CN108200414A CN108200414A CN201810196709.1A CN201810196709A CN108200414A CN 108200414 A CN108200414 A CN 108200414A CN 201810196709 A CN201810196709 A CN 201810196709A CN 108200414 A CN108200414 A CN 108200414A
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- Prior art keywords
- capacitance
- boat
- monitoring system
- voltagre regulator
- resistance
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims abstract description 5
- 238000006243 chemical reaction Methods 0.000 claims description 14
- 238000012806 monitoring device Methods 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 5
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 238000012545 processing Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
-
- H02J13/0062—
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/08—Protocols for interworking; Protocol conversion
Abstract
This application discloses a kind of boat-carrying monitoring system and power circuits, the power circuit, 24V voltages are converted into 3.3V, including Voltagre regulator, the input terminal of the Voltagre regulator is provided with 0.1 the first capacitances of μ F, one end ground connection of first capacitance, the output terminal of the Voltagre regulator is respectively arranged with the second capacitance and third capacitance, one end of second capacitance and third capacitance is grounded, first resistor is connected between the output terminal of the Voltagre regulator and ADJ interfaces, the ADJ interfaces of the Voltagre regulator are also associated with second resistance, one end ground connection of the second resistance, first capacitance and the second capacitance are 0.1 μ F, the third capacitance is 10 μ F, the first resistor is 200 Ω, the second resistance is 330 Ω.Present system is small, at low cost, processing speed is fast, transmission rate is high.
Description
Technical field
This application involves technical field of ship transportation, more particularly to a kind of boat-carrying monitoring system and power circuit.
Background technology
By setting camera on ship, the image information during ship's navigation can be acquired in real time, it can be with bank
Side console communication, to obtain the real-time status of ship.
Existing control and monitoring system for ships there are a variety of data protocols during due to data transmission, is needed agreement according to demand
The communication between camera and microcontroller etc. could be realized after conversion, and in the prior art, in order to realize protocol conversion, usually deposit
In system structure complexity, volume is big, stablizes the shortcomings of shape is poor.
Invention content
The purpose of the present invention is to provide a kind of boat-carrying monitoring system and power circuit, with overcome it is of the prior art not
Foot.
To achieve the above object, the present invention provides following technical solution：
The embodiment of the present application discloses a kind of boat-carrying monitoring system, including：
Hard disk video recorder；
Monitoring device, including holder and the camera being installed on holder；
Input module, the instruction of transmission are sent to holder and camera by hard disk video recorder；
Protocol conversion apparatus is connected between hard disk video recorder and monitoring device, realizes RS485 level to RS232 level
Conversion.
Preferably, in above-mentioned boat-carrying monitoring system, the protocol conversion apparatus includes power circuit, RS485 interfaces
Circuit, controller and RS232 interface circuit, the RS485 interface circuits and RS232 interface circuit are connected to the control
Device, the output terminal of the RS232 interface circuit are connected to the camera and holder, and the power circuit is respectively
RS485 interface circuits, controller and the power supply of RS232 interface circuit.
Preferably, in above-mentioned boat-carrying monitoring system, the controller uses STM32F103C8T6 chips.
Preferably, in above-mentioned boat-carrying monitoring system, the RS485 interface circuits use MAX3485ESA chips.
Preferably, in above-mentioned boat-carrying monitoring system, the RS232 interface circuit uses SP3232EEN chips.
Preferably, in above-mentioned boat-carrying monitoring system, the power circuit exports 3.3V voltages.
Preferably, in above-mentioned boat-carrying monitoring system, the power circuit includes Voltagre regulator, the voltage voltage stabilizing
The input terminal of device is provided with 0.1 the first capacitances of μ F, one end ground connection of first capacitance, the output terminal difference of the Voltagre regulator
Be provided with the second capacitance and third capacitance, one end ground connection of second capacitance and third capacitance, the Voltagre regulator it is defeated
First resistor is connected between outlet and ADJ interfaces, the ADJ interfaces of the Voltagre regulator are also associated with second resistance, this
One end ground connection of two resistance, first capacitance and the second capacitance are 0.1 μ F, and the third capacitance is 10 μ F, and described first is electric
It hinders for 200 Ω, the second resistance is 330 Ω；
The power circuit further includes DC-DC converter, and the DC high-voltage of ship is transformed into 24V, and as voltage
The input power of voltage-stablizer.
Preferably, in above-mentioned boat-carrying monitoring system, the Voltagre regulator uses LM317 chips.
Preferably, in above-mentioned boat-carrying monitoring system, input module is a control keyboard.
Disclosed herein as well is a kind of power circuits, and 24V voltages are converted into 3.3V, including Voltagre regulator, the electricity
The input terminal of pressure voltage-stablizer is provided with 0.1 the first capacitances of μ F, one end ground connection of first capacitance, the output of the Voltagre regulator
End is respectively arranged with one end ground connection of the second capacitance and third capacitance, second capacitance and third capacitance, the voltage voltage stabilizing
First resistor is connected between the output terminal of device and ADJ interfaces, the ADJ interfaces of the Voltagre regulator are also associated with the second electricity
Resistance, one end ground connection of the second resistance, first capacitance and the second capacitance are 0.1 μ F, and the third capacitance is 10 μ F, described
First resistor is 200 Ω, and the second resistance is 330 Ω.
Compared with prior art, the advantage of the invention is that：Present system is small, at low cost, processing speed is fast, passes
Defeated rate is high.
Description of the drawings
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or it will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments described in application, for those of ordinary skill in the art, without creative efforts,
It can also be obtained according to these attached drawings other attached drawings.
Fig. 1 show the functional-block diagram of boat-carrying monitoring system in the specific embodiment of the invention；
Fig. 2 show the functional-block diagram of protocol conversion apparatus in the specific embodiment of the invention；
Fig. 3 show the schematic diagram of power circuit in the specific embodiment of the invention.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, detailed retouch is carried out to the technical solution in the embodiment of the present invention
It states, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.Based on the present invention
In embodiment, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example, shall fall within the protection scope of the present invention.
With reference to shown in Fig. 1, the present embodiment provides a kind of boat-carrying monitoring system, including hard disk video recorder, monitoring device, input
Module and protocol conversion apparatus.
Monitoring device includes holder and the camera being installed on holder.
The instruction that input module is sent is sent to holder and camera by hard disk video recorder.
Protocol conversion apparatus is connected between hard disk video recorder and monitoring device, realizes RS485 level to RS232 level
Conversion.
With reference to shown in Fig. 2, the protocol conversion apparatus includes power circuit, RS485 interface circuits, controller and RS232
Interface circuit, the RS485 interface circuits and RS232 interface circuit are connected to the controller, the RS232 interface electricity
The output terminal on road is connected to the camera and holder, the power circuit be respectively RS485 interface circuits, controller and
RS232 interface circuit is powered.
In the technical solution, by protocol conversion apparatus, the data between hard disk video recorder and monitoring device can be matched
Format protocol facilitates and directly communicates between hard disk video recorder and monitoring device.
Controller can include microprocessor (MCU), which can include central processing unit (Central
Processing Unit, CPU), read-only memory module (read-only memory, ROM), random storage module (random
Access memory, RAM), timing module, digital-to-analogue conversion module (A/D converter) and plural input/output
Port.Certainly, the integrated circuit that controller can also take other form, such as：Application-specific IC (Application
Specific Integrated Circuit, ASIC) or field programmable gate arrays (Field Programmable Gate
Array, FPGA) etc..
In a preferred embodiment, the controller uses STM32F103C8T6 chips.
STM32F103C8T6 is a microcontroller of 32 based on ARM Cortex-M kernels STM32 series, program
Memory capacity is 64KB, needs voltage 2V~3.6V, and operating temperature is -40 °C~85 DEG C.
In a preferred embodiment, the RS485 interface circuits use MAX3485ESA chips.
MAX3485ESA chips are the 3.3V to communicate for RS-485 with RS-422, low-power consumption transceiver, in each device
All there are one driver and a receivers for tool.
In a preferred embodiment, the RS232 interface circuit uses SP3232EEN chips.
SP3232EEN chips use NSOIC packaged types.Interface type：RS-232；Supply voltage range：3V~5.5V；
Operating temperature range:- 40 DEG C~+85 DEG C；Data transfer rate:235Kbps；Source current:0.3mA；Output current is maximum:60mA.
In a preferred embodiment, the power circuit output 3.3V voltages.
With reference to shown in Fig. 3, the power circuit includes Voltagre regulator 1, and the input terminal Vin of the Voltagre regulator 1 is set
0.1 the first capacitances of μ F 2, one end ground connection of first capacitance 2 are equipped with, the output end vo ut of the Voltagre regulator 1 is set respectively
Have the second capacitance 3 and a third capacitance 4, one end ground connection of second capacitance 3 and third capacitance 4, the Voltagre regulator 1 it is defeated
First resistor 5 is connected between outlet Vout and ADJ interface, the ADJ interfaces of the Voltagre regulator are also associated with second resistance
6, one end ground connection of the second resistance 6,2 and second capacitance 3 of the first capacitance is 0.1 μ F, and the third capacitance 4 is 10 μ F,
The first resistor 5 is 200 Ω, and the second resistance 6 is 330 Ω；The power circuit further includes DC-DC converter, by ship
The DC high-voltage of oceangoing ship is transformed into 24V, and as the input power of Voltagre regulator.
In the technical solution, the first capacitance can reduce the sensibility to input terminal source impedance as shunt capacitance；The
Two capacitances are filtering the interference in output end power signal；Third capacitance is electrolytic capacitor, ensures circuit stability.
In a preferred embodiment, the Voltagre regulator uses LM317 chips.
LM317 is one of power IC being most widely used, it not only has fixed three-terminal voltage-stabilizing circuit
Simplest form, but also with output voltage it is adjustable the characteristics of.In addition, also have range of regulation is wide, voltage regulation performance is good, noise is low,
Ripple Suppression than it is high the advantages that.Lm317 is adjustable 3 proper Voltagre regulators, the energy in 1.2 volts to 37 volts of output voltage range
Enough to provide the electric current more than 1.5 peace, this voltage-stablizer is highly susceptible to using.
In a preferred embodiment, input module is a control keyboard.
In conclusion present system is small, at low cost, processing speed is fast, transmission rate is high.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any this practical relationship or sequence.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Non-exclusive inclusion, so that process, method, article or equipment including a series of elements not only will including those
Element, but also including other elements that are not explicitly listed or further include as this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
Also there are other identical elements in process, method, article or equipment including the element.
The above is only the specific embodiment of the application, it is noted that for the ordinary skill people of the art
For member, under the premise of the application principle is not departed from, several improvements and modifications can also be made, these improvements and modifications also should
It is considered as the protection domain of the application.
Claims (10)
1. a kind of boat-carrying monitoring system, which is characterized in that including：
Hard disk video recorder；
Monitoring device, including holder and the camera being installed on holder；
Input module, the instruction of transmission are sent to holder and camera by hard disk video recorder；
Protocol conversion apparatus is connected between hard disk video recorder and monitoring device, realizes that RS485 level turns to RS232 level
It changes.
2. boat-carrying monitoring system according to claim 1, which is characterized in that the protocol conversion apparatus includes power supply electricity
Road, RS485 interface circuits, controller and RS232 interface circuit, the RS485 interface circuits and RS232 interface circuit connect respectively
The controller is connected to, the output terminal of the RS232 interface circuit is connected to the camera and holder, the power supply electricity
Road is respectively RS485 interface circuits, controller and the power supply of RS232 interface circuit.
3. boat-carrying monitoring system according to claim 2, which is characterized in that the controller uses STM32F103C8T6
Chip.
4. boat-carrying monitoring system according to claim 2, which is characterized in that the RS485 interface circuits use
MAX3485ESA chips.
5. boat-carrying monitoring system according to claim 2, which is characterized in that the RS232 interface circuit uses
SP3232EEN chips.
6. boat-carrying monitoring system according to claim 2, which is characterized in that the power circuit exports 3.3V voltages.
7. boat-carrying monitoring system according to claim 6, which is characterized in that
The power circuit includes Voltagre regulator, and the input terminal of the Voltagre regulator is provided with 0.1 the first capacitances of μ F, this
One end ground connection of one capacitance, the output terminal of the Voltagre regulator are respectively arranged with the second capacitance and third capacitance, and described second
One end of capacitance and third capacitance is grounded, and is connected with first resistor between the output terminal of the Voltagre regulator and ADJ interfaces, institute
The ADJ interfaces for stating Voltagre regulator are also associated with second resistance, one end ground connection of the second resistance, first capacitance and second
Capacitance is 0.1 μ F, and the third capacitance is 10 μ F, and the first resistor is 200 Ω, and the second resistance is 330 Ω；
The power circuit further includes DC-DC converter, and the DC high-voltage of ship is transformed into 24V, and be used as voltage voltage stabilizing
The input power of device.
8. boat-carrying monitoring system according to claim 7, which is characterized in that the Voltagre regulator uses LM317 chips.
9. boat-carrying monitoring system according to claim 1, which is characterized in that input module is a control keyboard.
10. 24V voltages are converted into 3.3V by a kind of power circuit, which is characterized in that including Voltagre regulator, the voltage is steady
The input terminal of depressor is provided with 0.1 the first capacitances of μ F, one end ground connection of first capacitance, the output terminal point of the Voltagre regulator
It is not provided with one end ground connection of the second capacitance and third capacitance, second capacitance and third capacitance, the Voltagre regulator
First resistor is connected between output terminal and ADJ interfaces, the ADJ interfaces of the Voltagre regulator are also associated with second resistance, should
One end ground connection of second resistance, first capacitance and the second capacitance are 0.1 μ F, and the third capacitance is 10 μ F, described first
Resistance is 200 Ω, and the second resistance is 330 Ω.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810196709.1A CN108200414A (en) | 2018-03-10 | 2018-03-10 | Boat-carrying monitoring system and power circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810196709.1A CN108200414A (en) | 2018-03-10 | 2018-03-10 | Boat-carrying monitoring system and power circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108200414A true CN108200414A (en) | 2018-06-22 |
Family
ID=62594813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810196709.1A Pending CN108200414A (en) | 2018-03-10 | 2018-03-10 | Boat-carrying monitoring system and power circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108200414A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1710958A (en) * | 2005-07-08 | 2005-12-21 | 冯成进 | Mobile network monitor |
| CN103970176A (en) * | 2014-05-26 | 2014-08-06 | 万高(杭州)科技有限公司 | Low-dropout linear voltage-stabilizing circuit and application system thereof |
| CN203813886U (en) * | 2014-04-02 | 2014-09-03 | 上海海达通信公司 | Surveillance camera backend control protocol conversion device |
-
2018
- 2018-03-10 CN CN201810196709.1A patent/CN108200414A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1710958A (en) * | 2005-07-08 | 2005-12-21 | 冯成进 | Mobile network monitor |
| CN203813886U (en) * | 2014-04-02 | 2014-09-03 | 上海海达通信公司 | Surveillance camera backend control protocol conversion device |
| CN103970176A (en) * | 2014-05-26 | 2014-08-06 | 万高(杭州)科技有限公司 | Low-dropout linear voltage-stabilizing circuit and application system thereof |
Non-Patent Citations (1)
| Title |
|---|
| 匿名: "LM317构成的1.25～37V可调电源", pages 1, Retrieved from the Internet <URL:https://tech.hqew.com/circuit_795654> * |
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