CN107600357B - A kind of high-precision, which is faced upward, sweeps formula drauht detection system and its working method - Google Patents
A kind of high-precision, which is faced upward, sweeps formula drauht detection system and its working method Download PDFInfo
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Abstract
It is faced upward the invention discloses a kind of high-precision and sweeps formula drauht detection system and its working method, the system includes ultrasonic sensor modules, hydraulic pressure sensor module, obliquity sensor module, synchronous sampling control module, ultrasonic sensor interface plate module, hydraulic pressure sensor interface plate module, obliquity sensor interface plate module, data processing module and display module.Since the present invention carries out data acquisition using multiple sensor interface plates, acquisition control is synchronized by synchronous sampling control plate, so that the building of sensor array is more convenient, and solves the problems, such as to be unable to Fast synchronization acquisition in the excessive situation of number of sensors.Data acquisition is synchronized with ultrasonic sensor and hydraulic pressure sensor since the present invention uses, it is carried out curve fitting by hydraulic pressure sensor data, detection support state is modeled, solves the problems, such as to generate error because deformation occurs for detection support, improves detection accuracy.
Description
Technical field
The present invention relates to drauht detection techniques, in particular to one kind, which is faced upward, sweeps drauht detection system.
Background technique
As the super drinking water phenomenon of inland navigation craft is increasing, the safety of inland river navigation ship is caused serious hidden
Suffer from, particularly important is also become to the detection of the super drinking water of ship.It is existing face upward sweep formula drinking water detection system be by building one packet
The array for including multiple ultrasonic distance-measuring sensors is installed in underwater detection support, by obtain sensor data into
Row data processing obtains the data such as corresponding shipping draft.The method only meets in the case where number of sensors is less,
When inland river width is to certain situation, to guarantee that measurement accuracy needs to install dozens or even hundreds of ultrasonic sensor, at this time
Since number of sensors is excessive, the collection period of data is greatly increased, so that the period of drauht detection increases, is seriously affected
Its detection accuracy.
Summary of the invention
In order to solve the above problem, the present invention will propose the height that a kind of acquisition speed is fast, multiple sensors synchronism is good
Precision, which is faced upward, sweeps formula drauht detection system and its working method.
To achieve the goals above, technical scheme is as follows:
A kind of high-precision, which is faced upward, sweeps formula drauht detection system, including ultrasonic sensor modules, hydraulic pressure sensor module,
Obliquity sensor module, synchronous sampling control module, ultrasonic sensor interface plate module, hydraulic pressure sensor interface plate module,
Obliquity sensor interface plate module, data processing module and display module；The data processing module is transmitted by data
Line is sensed with synchronous sampling control module, ultrasonic sensor interface plate module, hydraulic pressure sensor interface plate module, inclination angle respectively
Device interface plate module and display module are connected；The ultrasonic sensor interface plate module and ultrasonic sensor modules
It is connected, ultrasonic sensor modules are made of N number of ultrasonic sensor, and N number of ultrasonic sensor is perpendicular to horizontal plane direction
Be arranged in a row and be uniformly mounted in detection support, for measure detection support to hull bottom distance；The hydraulic pressure sensor connects
Oralia module is connected with hydraulic pressure sensor module, and hydraulic pressure sensor module is made of M+1 hydraulic pressure sensor, M+1 hydraulic pressure
Sensor is uniformly mounted in detection support, for measuring the depth of detection support each position；The obliquity sensor interface
Plate module is connected with obliquity sensor module, and obliquity sensor module is made of 3 obliquity sensors, 3 obliquity sensors
It is mounted on left side, centre, right positions in detection support, for measuring the tilt angle of detection support and horizontal plane；It is described
Synchronous sampling control module respectively with ultrasonic sensor interface plate module, obliquity sensor interface plate module, hydraulic pressure sense
Device interface plate module is connected, and synchronous sampling control module is made of synchronous sampling control plate, and synchronous sampling control plate receives number
According to processing module send control instruction, then to ultrasonic sensor interface plate module, hydraulic pressure sensor interface plate module, incline
Angle transducer interface plate module send start data sampling control signal, control each sensor according to synchronized sampling timing into
Row sampling operation, to guarantee that underwater sensor is able to carry out orderly measurement work and returned data；The data processing
Module is industrial computer, handles each sensing data received, calculates shipping draft；The display mould
Block is by Industrial Computer Control, for showing shipping draft and detection support real-time status.
Further, the number N of the ultrasonic sensor is determined according to the width of sense channel, and N is the multiple of M
Number.
Further, the number N of the ultrasonic sensor is 30 to 100.
A kind of high-precision faces upward the working method for sweeping formula drauht detection system, comprising the following steps:
A, distance of the ultrasonic sensor modules detection detection support to bottom of ship；
Ultrasonic sensor modules are made of N number of ultrasonic sensor, are arranged in a row uniform installation perpendicular to water surface direction
In detection support, from being numbered 1 to N on the left of detection support, the distance that ultrasonic sensor measures is ultrasonic sensor
L1To LN, then the detection support distance that the ultrasonic sensor of xth rice position measures since left side is Lx；
B, the depth under water of hydraulic pressure sensor module detection detection support；
Hydraulic pressure sensor module is uniformly mounted in detection support by M+1 hydraulic pressure sensor and is constituted, super at interval of N/M
Sonic sensor installs a hydraulic pressure sensor, and hydraulic pressure sensor is from being numbered 1 to M+1 on the left of detection support, hydraulic pressure sensing
The depth that device measures is X1To XM+1, the depth of detection support xth rice position since left side is Xx, by measure one group of data (i,
Xi) carry out sectional straight line fitting, i=1,2 ... M+1, if fitting a straight line formula are as follows:
X=f (x)=a+bx,
Measured each XiValue and each estimated value f (x of fitting a straight linei)=a+bxiThe quadratic sum of difference are as follows:
S=∑ [Xi-f(xi)]2=∑ [Xi-(a+bxi)]2,
Have accordingly:
Thus it solves:
Obtaining the depth at detection support x is Xx=f (x)=a+bx.
C, obliquity sensor module detects the underwater bending situation of detection support；
Obliquity sensor module is by being separately mounted to the left side of detection support, 3 obliquity sensor structures of centre, right side
At the angle of detection support and horizontal plane that obliquity sensor measures is θ1、θ2、θ3, data by display module real-time display,
For observing the underwater bending situation of detection support.
D, synchronous sampling control module synchronizes control；
Synchronous sampling control module is made of synchronous sampling control plate, synchronous sampling control plate using FPGA as core, including
RS232 interface and multichannel RS485 communication interface, RS232 interface are connected with data processing module, handle for receiving data all the way
The control instruction of module, multichannel RS485 communication interface respectively with ultrasonic sensor interface plate module, hydraulic pressure sensor interface board
Module is connected with obliquity sensor interface plate module, for sending the control for starting synchronized sampling to each sensor interface plate module
Signal processed.
E, ultrasonic sensor interface board module transfer data；
Ultrasonic sensor interface plate module is made of multiple ultrasonic sensor interface boards, and each ultrasonic sensor connects
Oralia connects 10 ultrasonic sensors, and ultrasonic sensor interface board is using FPGA as core, including 4 road RS485 interfaces, wherein
RS485-1 and RS485-2 is separately connected 5 ultrasonic sensors, and the control that RS485-3 is used to receive synchronous sampling control plate refers to
It enables, RS485-4 is for controlling ultrasonic sensor working condition and data acquisition.
F, hydraulic pressure sensor interface board module transfer data；
Hydraulic pressure sensor interface plate module is made of hydraulic pressure sensor interface board, and hydraulic pressure sensor interface board is using FPGA as core
The heart, including 3 road RS485 interfaces, wherein RS485-1 is connected with M+1 hydraulic pressure sensor, and RS485-2 is adopted for receiving to synchronize
The control instruction of sample control panel, RS485-3 is for controlling hydraulic pressure sensor working condition and data acquisition.
G, obliquity sensor interface board module transfer data；
Obliquity sensor interface plate module is made of obliquity sensor interface board, and obliquity sensor interface board is using FPGA as core
The heart, including 3 road RS485 interfaces, wherein RS485-1 is connected with 3 obliquity sensors, and RS485-2 is for receiving synchronized sampling
The control instruction of control panel, RS485-3 is for controlling obliquity sensor working condition and data acquisition.
H, data processing module calculates drinking water data；
Data processing module is an industrial computer, industrial computer respectively with synchronous sampling control module, ultrasonic wave
Sensor interface plate module, hydraulic pressure sensor interface plate module, obliquity sensor interface plate module and display module are connected,
Industrial computer sends acquisition instructions to synchronous sampling control plate, and each sensor interface plate synchronous working acquires each sensor
Data, industrial computer are calculated by hydraulic pressure sensor data, the Ultrasonic Sensor Data acquired, obtain ship everywhere
Absorb water data Hx, by Hx=Xx-Lx, take HxIn it is maximum value be extreme draft value.
I, display module shows draft；
The display module shows shipping draft and detection support real-time status by Industrial Computer Control.
Compared with prior art, advantages of the present invention is as follows:
1. being synchronized since the present invention carries out data acquisition using multiple sensor interface plates by synchronous sampling control plate
Acquisition control, so that the building of sensor array is more convenient, and solving cannot be quick in the excessive situation of number of sensors
The problem of synchronous acquisition.
2. synchronizing data acquisition since the present invention is used with ultrasonic sensor and hydraulic pressure sensor, sensed by hydraulic pressure
Device data carry out curve fitting, and model to detection support state, solve and generate error because deformation occurs for detection support
The problem of.
3. more intuitively being examined since the present invention detects detection support using double-shaft tilt angle sensor in real time
Look into the underwater bending state of bracket, solve the problems, such as detection support under water state be difficult to it is determining.
Detailed description of the invention
Fig. 1 faces upward the flow chart for sweeping formula drauht detection system to be a kind of.
Fig. 2 is each sensor module scheme of installation of detection support.
Fig. 3 faces upward the working principle diagram for sweeping formula drauht detection system to be a kind of.
Fig. 4 faces upward the overall frame structure figure for sweeping formula drauht detection system to be a kind of.
Fig. 5 is the working principle diagram of synchronous sampling control module.
In figure: 1, data processing module, 2, synchronous sampling control module, 3, ultrasonic sensor interface plate module, 4, water
Pressure sensor interface plate module, 5, obliquity sensor interface plate module, 6, ultrasonic sensor modules, 7, hydraulic pressure sensor mould
Block, 8, obliquity sensor module, 9, display module, 10, detection support, 11, ultrasonic sensor, 12, hydraulic pressure sensor, 13,
Obliquity sensor.
Specific embodiment
The present invention is further described through with reference to the accompanying drawing.
As shown in Figs 1-4, a kind of high-precision, which is faced upward, sweeps formula drauht detection system, including ultrasonic sensor modules 6, water
Pressure sensor module 7, obliquity sensor module 8, synchronous sampling control module 2, ultrasonic sensor interface plate module 3, hydraulic pressure
Sensor interface plate module 4, obliquity sensor interface plate module 5, data processing module 1 and display module 9；The data
Processing module 1 is passed with synchronous sampling control module 2, ultrasonic sensor interface plate module 3, hydraulic pressure respectively by data line
Sensor interface plate module 4, obliquity sensor interface plate module 5 and display module 9 are connected；The ultrasonic sensor connects
Oralia module 3 is connected with ultrasonic sensor modules 6, and ultrasonic sensor modules 6 are made of N number of ultrasonic sensor 11, N
A ultrasonic sensor 11 is arranged in a row perpendicular to horizontal plane direction and is uniformly mounted in detection support 10, for measuring detection branch
Frame 10 arrives the distance of hull bottom；The hydraulic pressure sensor interface plate module 4 is connected with hydraulic pressure sensor module 7, hydraulic pressure sensing
Device module 7 is made of M hydraulic pressure sensor 12, and M hydraulic pressure sensor 12 is uniformly mounted in detection support 10, for measuring inspection
Survey the depth of 10 each position of bracket；The obliquity sensor interface plate module 5 is connected with obliquity sensor module 8, inclination angle
Sensor module 8 is made of 3 obliquity sensors 13,3 obliquity sensors 13 be mounted on the left side in detection support 10, in
Between, right positions, for measuring the tilt angle of detection support 10 Yu horizontal plane；The synchronous sampling control module 2 is distinguished
It is connected with ultrasonic sensor interface plate module 3, obliquity sensor interface plate module 5, hydraulic pressure sensor interface plate module 4,
Synchronous sampling control module 2 is made of synchronous sampling control plate, and synchronous sampling control plate receives the control that data processing module 1 is sent
System instruction, then to ultrasonic sensor interface plate module 3, hydraulic pressure sensor interface plate module 4, obliquity sensor interface template die
Block 5 sends the control signal for starting data sampling, controls each sensor according to synchronized sampling timing and carries out sampling operation, to protect
It demonstrate,proves underwater sensor and is able to carry out orderly measurement work and returned data；The data processing module 1 is that industry calculates
Machine handles each sensing data received, calculates shipping draft；The display module 9 is calculated by industry
Machine control, for showing 10 real-time status of shipping draft and detection support.
Further, the number N of the ultrasonic sensor 11 is determined according to the width of sense channel, and N is the whole of M
Multiple.
Further, the number N of the ultrasonic sensor 11 is 30 to 100.
As quarrelled shown in 1-5, a kind of high-precision faces upward the working method for sweeping formula drauht detection system, comprising the following steps:
A, ultrasonic sensor modules 6 detect the distance that detection support 10 arrives bottom of ship；
Ultrasonic sensor modules 6 are made of N number of ultrasonic sensor 11, are arranged in a row uniform peace perpendicular to water surface direction
In detection support 10, ultrasonic sensor 11 is numbered 1 to N on the left of detection support 10, and ultrasonic sensor 11 is surveyed
The distance obtained is L1To LN, then the distance that the ultrasonic sensor 11 of xth rice position measures since left side of detection support 10 be
Lx；
B, hydraulic pressure sensor module 7 detects the depth under water of detection support 10；
Hydraulic pressure sensor module 7 is uniformly mounted in detection support 10 by M hydraulic pressure sensor 12 and is constituted, at interval of N/M
A ultrasonic sensor 11 installs a hydraulic pressure sensor 12, and hydraulic pressure sensor 12 is numbered 1 to M on the left of detection support 10
+ 1, the depth that hydraulic pressure sensor 12 measures is X1To XM+1, the depth of the xth rice position since left side of detection support 10 is Xx, by
Measure one group of data (i, Xi) carry out sectional straight line fitting, i=1,2 ... M+1, if fitting a straight line formula are as follows:
X=f (x)=a+bx,
Measured each XiValue and each estimated value f (x of fitting a straight linei)=a+bxiThe quadratic sum of difference are as follows:
S=∑ [Xi-f(xi)]2=∑ [Xi-(a+bxi)]2,
Have accordingly:
Thus it solves:
Obtaining the depth at detection support 10x is Xx=f (x)=a+bx.
C, obliquity sensor module 8 detects the underwater bending situation of detection support 10；
Obliquity sensor module 8 is by being separately mounted to the left side of detection support 10,3 obliquity sensors of centre, right side
13 are constituted, and the angle of detection support 10 and horizontal plane that obliquity sensor 13 measures is θ1、θ2、θ3, data pass through display module 9
Real-time display, for observing the underwater bending situation of detection support 10.
D, synchronous sampling control module 2 synchronizes control；
Synchronous sampling control module 2 is made of synchronous sampling control plate, synchronous sampling control plate using FPGA as core, including
RS232 interface and multichannel RS485 communication interface, RS232 interface are connected with data processing module 1, locate for receiving data all the way
The control instruction of module 1 is managed, multichannel RS485 communication interface connects with ultrasonic sensor interface plate module 3, hydraulic pressure sensor respectively
Oralia module 4 is connected with obliquity sensor interface plate module 5, adopts for starting to synchronize to the transmission of each sensor interface plate module
The control signal of sample.
E, ultrasonic sensor interface plate module 3 transmits data；
Ultrasonic sensor interface plate module 3 is made of multiple ultrasonic sensor interface boards, each ultrasonic sensor
Interface board connects 10 ultrasonic sensors 11, and ultrasonic sensor interface board is using FPGA as core, including 4 road RS485 interfaces,
Wherein RS485-1 and RS485-2 is separately connected 5 ultrasonic sensors 11, and RS485-3 is for receiving synchronous sampling control plate
Control instruction, RS485-4 is for controlling 11 working condition of ultrasonic sensor and data acquisition.
F, hydraulic pressure sensor interface plate module 4 transmits data；
Hydraulic pressure sensor interface plate module 4 is made of hydraulic pressure sensor interface board, and hydraulic pressure sensor interface board is with FPGA
Core, including 3 road RS485 interfaces, wherein RS485-1 is connected with M+1 hydraulic pressure sensor 12, and RS485-2 is same for receiving
The control instruction of controlling of sampling plate is walked, RS485-3 is for controlling 12 working condition of hydraulic pressure sensor and data acquisition.
G, obliquity sensor interface plate module 5 transmits data；
Obliquity sensor interface plate module 5 is made of obliquity sensor interface board, and obliquity sensor interface board is with FPGA
Core, including 3 road RS485 interfaces, wherein RS485-1 is connected with 3 obliquity sensors 13, and RS485-2 is for receiving synchronization
The control instruction of controlling of sampling plate, RS485-3 is for controlling 13 working condition of obliquity sensor and data acquisition.
H, data processing module 1 calculates drinking water data；
Data processing module 1 is an industrial computer, industrial computer respectively with synchronous sampling control module 2, ultrasound
Wave sensor interface plate module 3, hydraulic pressure sensor interface plate module 4, obliquity sensor interface plate module 5 and display module 9
It is connected, industrial computer sends acquisition instructions to synchronous sampling control plate, and each sensor interface plate synchronous working acquires each biography
The data of sensor, industrial computer are calculated by 12 data of hydraulic pressure sensor, 11 data of ultrasonic sensor acquired, are obtained
The drinking water data H of ship everywherex, by Hx=Xx-Lx, take HxIn it is maximum value be extreme draft value.
I, display module 9 shows draft；
The display module 9 shows shipping draft and 10 real-time status of detection support by Industrial Computer Control.
The present invention is not limited to the present embodiment, any equivalent concepts within the technical scope of the present disclosure or changes
Become, is classified as protection scope of the present invention.
Claims (3)
1. a kind of high-precision, which is faced upward, sweeps formula drauht detection system, it is characterised in that: including ultrasonic sensor modules (6), water
Pressure sensor module (7), obliquity sensor module (8), synchronous sampling control module (2), ultrasonic sensor interface plate module
(3), hydraulic pressure sensor interface plate module (4), obliquity sensor interface plate module (5), data processing module (1) and display mould
Block (9)；The data processing module (1) by data line respectively with synchronous sampling control module (2), supersonic sensing
Device interface plate module (3), hydraulic pressure sensor interface plate module (4), obliquity sensor interface plate module (5) and display module
(9) it is connected；The ultrasonic sensor interface plate module (3) is connected with ultrasonic sensor modules (6), and ultrasonic wave passes
Sensor module (6) is made of N number of ultrasonic sensor (11), and N number of ultrasonic sensor (11) is lined up perpendicular to horizontal plane direction
One row is uniformly mounted on detection support (10), for measuring the distance that detection support (10) arrive hull bottom；The hydraulic pressure sensing
Device interface plate module (4) is connected with hydraulic pressure sensor module (7), and hydraulic pressure sensor module (7) is by M+1 hydraulic pressure sensor
(12) form, M+1 hydraulic pressure sensor (12) be uniformly mounted on detection support (10), for measure detection support (10) everybody
The depth set；The obliquity sensor interface plate module (5) is connected with obliquity sensor module (8), obliquity sensor mould
Block (8) is made of 3 obliquity sensors (13), 3 obliquity sensors (13) be mounted on the left side on detection support (10), in
Between, right positions, for measuring the tilt angle of detection support (10) and horizontal plane；The synchronous sampling control module (2)
Respectively with ultrasonic sensor interface plate module (3), obliquity sensor interface plate module (5), hydraulic pressure sensor interface plate module
(4) it is connected, synchronous sampling control module (2) is made of synchronous sampling control plate, and synchronous sampling control plate receives data processing
The control instruction that module (1) is sent, then to ultrasonic sensor interface plate module (3), hydraulic pressure sensor interface plate module
(4), obliquity sensor interface plate module (5) sends the control signal for starting data sampling, controls each sensor according to synchronization
Sampling time sequence carries out sampling operation, to guarantee that underwater sensor is able to carry out orderly measurement work and returned data；It is described
Data processing module (1) be industrial computer, each sensing data received is handled, calculate drauht depth
Degree；The display module (9) is by Industrial Computer Control, for showing shipping draft and detection support (10) real-time shape
State；
The number N of the ultrasonic sensor (11) is determined according to the width of sense channel, and N is the integral multiple of M.
2. a kind of high-precision according to claim 1, which is faced upward, sweeps formula drauht detection system, it is characterised in that: described is super
The number N of sonic sensor (11) is 30 to 100.
3. a kind of high-precision faces upward the working method for sweeping formula drauht detection system, it is characterised in that: the following steps are included:
A, the distance of bottom of ship is arrived in ultrasonic sensor modules (6) detection detection support (10)；
Ultrasonic sensor modules (6) are made of N number of ultrasonic sensor (11), are arranged in a row uniform peace perpendicular to water surface direction
On detection support (10), ultrasonic sensor (11) is from being numbered 1 to N on the left of detection support (10), supersonic sensing
The distance that device (11) measures is L1To LN, then the ultrasonic sensor (11) of detection support (10) xth rice position since left side is surveyed
The distance obtained is Lx；
B, the depth under water of hydraulic pressure sensor module (7) detection detection support (10)；
Hydraulic pressure sensor module (7) is uniformly mounted on detection support (10) by M+1 hydraulic pressure sensor (12) and is constituted, at interval of
N/M ultrasonic sensor (11) installs a hydraulic pressure sensor (12), and hydraulic pressure sensor (12) is on the left of detection support (10)
It is numbered 1 to M+1, the depth that hydraulic pressure sensor (12) measures is X1To XM+1, detection support (10) xth rice since left side
The depth of position is Xx, by measuring one group of data (i, Xi) carry out sectional straight line fitting, i=1,2 ... M+1, if fitting a straight line formula
Are as follows:
X=f (x)=a+bx,
Measured each XiValue and each estimated value f (x of fitting a straight linei)=a+bxiThe quadratic sum of difference are as follows:
S=∑ [Xi-f(xi)]2=∑ [Xi-(a+bxi)]2,
Have accordingly:
Thus it solves:
Obtaining the depth at detection support (10) x is Xx=f (x)=a+bx；
C, obliquity sensor module (8) detects detection support (10) underwater bending situation；
Obliquity sensor module (8) is by being separately mounted to the left side of detection support (10), 3 obliquity sensors of centre, right side
(13) it constitutes, the angle of detection support (10) and horizontal plane that obliquity sensor (13) measures is θ1、θ2、θ3, data pass through display
Module (9) real-time display, for observing the underwater bending situation of detection support (10)；
D, synchronous sampling control module (2) synchronizes control；
Synchronous sampling control module (2) is made of synchronous sampling control plate, and synchronous sampling control plate is using FPGA as core, including one
Road RS232 interface and multichannel RS485 communication interface, RS232 interface are connected with data processing module (1), locate for receiving data
The control instruction of module (1) is managed, multichannel RS485 communication interface is sensed with ultrasonic sensor interface plate module (3), hydraulic pressure respectively
Device interface plate module (4) is connected with obliquity sensor interface plate module (5), for opening to the transmission of each sensor interface plate module
The control signal of beginning synchronized sampling；
E, ultrasonic sensor interface plate module (3) transmits data；
Ultrasonic sensor interface plate module (3) is made of multiple ultrasonic sensor interface boards, and each ultrasonic sensor connects
Oralia connects 10 ultrasonic sensors (11), and ultrasonic sensor interface board is using FPGA as core, including 4 road RS485 interfaces,
Wherein RS485-1 and RS485-2 is separately connected 5 ultrasonic sensors (11), and RS485-3 is for receiving synchronous sampling control plate
Control instruction, RS485-4 for control ultrasonic sensor (11) working condition and data acquisition；
F, hydraulic pressure sensor interface plate module (4) transmits data；
Hydraulic pressure sensor interface plate module (4) is made of hydraulic pressure sensor interface board, and hydraulic pressure sensor interface board is using FPGA as core
The heart, including 3 road RS485 interfaces, wherein RS485-1 is connected with M+1 hydraulic pressure sensor (12), and RS485-2 is same for receiving
The control instruction of controlling of sampling plate is walked, RS485-3 is for controlling hydraulic pressure sensor (12) working condition and data acquisition；
G, obliquity sensor interface plate module (5) transmits data；
Obliquity sensor interface plate module (5) is made of obliquity sensor interface board, and obliquity sensor interface board is using FPGA as core
The heart, including 3 road RS485 interfaces, wherein RS485-1 is connected with 3 obliquity sensors (13), and RS485-2 is for receiving synchronization
The control instruction of controlling of sampling plate, RS485-3 is for controlling obliquity sensor (13) working condition and data acquisition；
H, data processing module (1) calculates drinking water data；
Data processing module (1) is an industrial computer, industrial computer respectively with synchronous sampling control module (2), ultrasound
Wave sensor interface plate module (3), hydraulic pressure sensor interface plate module (4), obliquity sensor interface plate module (5) and display
Module (9) is connected, and industrial computer sends acquisition instructions to synchronous sampling control plate, and each sensor interface plate works asynchronously,
The data of each sensor are acquired, industrial computer is counted by hydraulic pressure sensor (12) data of acquisition, ultrasonic sensor (11)
According to being calculated, the drinking water data H of ship everywhere is obtainedx, by Hx=Xx-Lx, take HxIn it is maximum value be extreme draft value；
I, display module (9) shows draft；
The display module (9) shows shipping draft and detection support (10) real-time status by Industrial Computer Control.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH06293291A (en) * | 1993-04-07 | 1994-10-21 | Ebara Corp | Draft measuring device for ship |
| CN102285431A (en) * | 2011-04-29 | 2011-12-21 | 大连海事大学 | Navigable ship draft real-time measuring device and measuring method |
| CN103241349B (en) * | 2013-04-17 | 2015-10-28 | 大连海事大学 | A kind of float type drauht quantity measuring method |
| CN104129480B (en) * | 2014-07-23 | 2016-12-07 | 大连海事大学 | A kind of method of work of floating drauht detecting system |
| CN104386216B (en) * | 2014-10-31 | 2017-02-08 | 大连海事大学 | Sound velocity calibration type ship draught detection system and working method thereof |
| CN105818941B (en) * | 2016-03-15 | 2017-10-24 | 大连海事大学 | One kind, which is faced upward, sweeps formula drinking water detecting system and its method of work |
| CN205675202U (en) * | 2016-06-22 | 2016-11-09 | 长江三峡通航管理局 | A kind of fluctuation of water table drauht that adapts to detects device |
| CN106428454B (en) * | 2016-10-14 | 2018-07-03 | 大连海事大学 | It is a kind of to face upward the deflection compensation method for sweeping formula drauht detecting system |
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