CN107357162A - Universal water inlet detecting and warning system - Google Patents
Universal water inlet detecting and warning system Download PDFInfo
- Publication number
- CN107357162A CN107357162A CN201710522467.6A CN201710522467A CN107357162A CN 107357162 A CN107357162 A CN 107357162A CN 201710522467 A CN201710522467 A CN 201710522467A CN 107357162 A CN107357162 A CN 107357162A
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- plc
- water inlet
- signal
- repeater
- standby
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B9/00—Safety arrangements
- G05B9/02—Safety arrangements electric
- G05B9/03—Safety arrangements electric with multiple-channel loop, i.e. redundant control systems
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Alarm Systems (AREA)
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Abstract
The invention discloses a kind of universal water inlet detecting and warning system, including one group of I/O module, main PLC, standby PLC, protocol converter, repeater；The external water inlet detection sensor of I/O modules, on-off model and analog signalses can be gathered, the signal of collection is converted into other types signal output to protocol converter, protocol converter is exported to main PLC, standby PLC after signal is carried out into protocol conversion, main PLC, standby PLC pass to repeater after being analyzed and processed to the signal, repeater reception signal display water inlet information simultaneously synchronously sends sound and light alarm signal.It is an advantage of the invention that：With distributed bus, different types of water inlet detection sensor can be applied to, there is practical value to ship's space water inlet detection；According to water inlet detection sensor incoming data, each sensor line fault diagnosis can be realized, improves the stability of a system；By data in the process interface of modular converter, different model PLC data syn-chronization is realized, increases system configuration flexibility.
Description
Technical field
The present invention relates to a kind of water inlet detecting and warning system peculiar to vessel, more particularly to a kind of universal water inlet detection alarm system
System, detection alarm is carried out to ship leakage situation.
Background technology
On ship installation water inlet detecting and warning system purpose be in order to understand the situation that ship's space is surprisingly intake in time,
To take appropriate measures in time, the security of the lives and property is ensured.Water inlet detecting and warning system monitor set, alarm, be shown as one
Body, when a certain cabin intakes, sensor probe can send out an on-off model or continuous analog signalses to control cabinet,
Repeater through being previously set and installing sends corresponding sound and light alarm and continuously indicates or show phase emergency chamber numbering.
At present, water inlet detecting and warning system both domestic and external is substantially carried out just in single type water inlet detection sensor
Exploitation, switching value class sensor are kept completely separate with analog quantity class sensor acquisition process.Meanwhile switching value class water inlet detection sensing
Device can not accomplish that line fault monitors, if cabin water inlet occurs in the case of sensor line failure, this will be to shipping transport
Safety causes very big hidden danger.In addition, system uses single type PLC, selection is limited to, and economic benefit is low.
The content of the invention
Goal of the invention：In view of the above-mentioned problems, the present invention proposes a kind of universal water inlet detecting and warning system, switching value is realized
Class sensor merges with analog quantity class sensor acquisition process, breaks PLC unicity barriers, increases economic efficiency.
Technical scheme：A kind of universal water inlet detecting and warning system, including data acquisition unit, data processing unit, number
According to display unit；
Data acquisition unit includes one group of I/O module, each external a type of water inlet detection sensor of I/O modules,
The signal for detection sensor collection of intaking is converted into other types signal output to data processing unit by I/O modules；
Data processing unit includes main PLC, standby PLC, the first protocol converter, the first protocol converter and one group of I/O mould
Block connects, and receives the output signal of I/O modules, meanwhile, main PLC, standby PLC are connected with the first protocol converter respectively, the first association
The output signal received export to main PLC after protocol conversion, analyzed and processed for PLC by view converter；
Data display unit includes one group of repeater, and each repeater is connected with main PLC, standby PLC simultaneously, main PLC, standby
The signal that analyzing and processing finishes is passed to repeater by PLC respectively, and repeater display water inlet information simultaneously synchronously sends sound and light alarm
Signal.
Further, during main PLC normal works, standby PLC is in semidormancy state, and now, standby PLC only carries out point of signal
Analysis handles and is not transferred to repeater；When main PLC breaks down, the signal that analyzing and processing finishes is passed to repeater by standby PLC.
Further, the system also includes two-way CAN BUS buses, respectively CANBUS buses I and CANBUS buses II,
CANBUS buses I and CANBUS buses II are connected between I/O modules and the first protocol converter.Two-way CAN BUS buses
Collection circuit redundancy is realized, system survivability is improved, enhances the reliability of whole system.
Further, I/O modules collection on-off model, I/O modules collection on-off model, the gathering line of I/O modules
Road includes collection port, resistance R1, resistance R2, operational amplifier, and resistance R1 is 10k Ω, and resistance R2 is 16.8k Ω, collection terminal
Mouth is in parallel with resistance R2 again after being connected with resistance R1, the resistance R1 and resistance R2 equivalent resistances being combined into and operational amplifier it is same
Phase input connects, and completes the input and output of on-off model, on-off model is converted to 0-3V voltages by operational amplifier
Signal, according to different voltage class, judge current external water inlet detection sensor state.
Further, I/O modules collection analog signalses, the collection circuit of I/O modules include collection port, operation amplifier
Device, collection port are connected with operational amplifier signal, complete the input and output of analog signalses, and operational amplifier is by analog quantity
Signal is converted directly into 4-20mA signals, according to transducer range and sample rate current, by sampling resistor, quantifies different electricity
Pressure, according to ratio, converse current external water inlet detection sensor collection value.
Further, the system also includes MODBUS-RTU buses, repeater by MODBUS-RTU buses and main PLC or
Standby PLC (3) forms signal connection.
Optimal, the system also includes second protocol converter, and second protocol converter includes CANBUS, MODBUS-
RTU, MODBUS-TCP port, second protocol converter be connected between repeater and main PLC and/or repeater and standby PLC it
Between, bus and communication protocol matching are realized, main PLC or standby PLC bus protocol is converted into showing again by second protocol converter
The MODBUS-RTU bus protocols that device follows.
Optimal, the first protocol converter includes CANBUS, PROFIBUS, MODBUS-TCP port, can be achieved bus and
Communications protocol mutually turns, and the CANBUS bus protocols conversion that I/O modules follow is assisted by the main PLC or standby PLC buses followed
View.
Beneficial effect：Compared with prior art, it is an advantage of the invention that：With distributed bus so that sensor arrangement
Flexibly, set expandability is more superior, can be applied to different types of water inlet detection sensor, and ship's space is intake and detected
With practical value；According to water inlet detection sensor incoming data, each sensor line fault diagnosis can be realized, improves system
System stability；System design protocol converter, plc data redundancy is realized, system configuration cost is greatly reduced, in having broken
Technology barriers between high-end PLC, by data in the process interface of modular converter, different model PLC data syn-chronization is realized,
Increase system configuration flexibility.
Brief description of the drawings
Accompanying drawing is connection diagram of the invention.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment, the present invention is furture elucidated, it should be understood that these embodiments are merely to illustrate
The present invention rather than limitation the scope of the present invention, after the present invention has been read, those skilled in the art are each to the present invention's
The modification of the kind equivalent form of value falls within the application appended claims limited range.
A kind of universal water inlet detecting and warning system, including the display of data acquisition unit, data processing unit, data are single
Member；As illustrated, data acquisition unit includes one group of I/O module 1, each external a type of water inlet detection of I/O modules 1 passes
Sensor, the signal for detection sensor collection of intaking is converted into other types signal output to data processing unit；Data processing
Unit includes main PLC2, standby PLC3, the first protocol converter 4；Data display unit includes one group of repeater 5.
I/O modules 1 are connected by two-way CAN BUS buses with the first protocol converter 4, and two-way CAN BUS buses are respectively
CANBUS buses I 7 and CANBUS buses II 8；First protocol converter 4 includes CANBUS, PROFIBUS, MODBUS-TCP end
Mouthful, bus can be achieved and the mutual of communications protocol turns.
First protocol converter 4 is connected with main PLC2, standby PLC3 respectively, and the first protocol converter 4 will be by CANBUS buses I
After 7 signals received are converted to the agreement of PROFIBUS buses 9, main PLC2 is passed to, and will be received by CANBUS buses II 8
To signal be directly passed to standby PLC3, main PLC2, standby PLC3 analyze and process to the signal.
Repeater 5 connects main PLC2, standby PLC3 simultaneously, and main PLC2, standby PLC3 will analyze and process the signal biography finished respectively
Repeater 5 is passed, main PLC2, standby PLC3 circuits are separate；When main PLC2 normal works, standby PLC3 is in semidormancy shape
State, now, standby PLC3 only analyze and process to the signal received, without signal is passed into repeater 5；When main PLC2 goes out
Existing failure, standby PLC3 replace main PLC2, and the signal that analyzing and processing finishes is passed into repeater 5；It is standby when main PLC2 failture evacuations
PLC3 comes back to semidormancy state.
Main PLC2 has PROFIBUS, MODBUS-TCP port, and the signal that PROFIBUS buses 9 are transmitted is by PROFIBUS ends
Mouth inputs main PLC2, and is exported by MODBUS-TCP ports, and signal is passed into second protocol through MODBUS-TCP buses 10 turns
Parallel operation 6.Second protocol converter 6 includes CANBUS, MODBUS-RTU, MODBUS-TCP port, and bus can be achieved and assisted with communication
View mutually turns；The signal received by MODBUS-TCP buses 10 is converted to MODBUS-RTU buses by second protocol converter 6
After 11 agreement, repeater 5, the reception signal of repeater 5 display water inlet information are passed to, and synchronously send sound and light alarm signal.
Standby PLC3 carries CANBUS, MODBUS-RTU port, and the signal that CANBUS buses II 8 are transmitted is defeated by CANBUS ports
Enter standby PLC3, when main PLC breaks down, signal is exported by standby PLC3 MODBUS-RTU ports, total by MODBUS-RTU
Line 11 passes to repeater 5, the reception signal of repeater 5 display water inlet information, and synchronously sends sound and light alarm signal.
I/O modules 1 can both gather on-off model, can gather analog signalses again.The collection port of I/O modules 1
Pass through 16.8k Ω resistance R2 in parallel, and the resistance R1 and resistance R2 equivalent resistances being combined into are connect again after the 10k Ω resistance R1 that connects
Enter the in-phase input end of operational amplifier, complete the input and output of on-off model, operational amplifier is by the switching value of access
Signal is converted to 0-3V voltage signals, can judge that current external water inlet detection sensor state is (disconnected according to different voltage class
Line, short circuit, closure, disconnection).The input of analog signalses is realized by accessing operational amplifier in the collection port of I/O modules 1
With output, the analog signalses of access are converted directly into 4-20mA signals by operational amplifier, according to transducer range and are adopted
Sample electric current, by sampling resistor, quantify different voltages, according to ratio, converse current external water inlet detection sensor and adopt
Set value.
Claims (8)
- A kind of 1. universal water inlet detecting and warning system, it is characterised in that：Including data acquisition unit, data processing unit, number According to display unit；Data acquisition unit includes one group of I/O module (1), each external a type of water inlet detection sensing of I/O modules (1) The signal that detection sensor of intaking gathers is converted into other types signal output to data processing unit by device, I/O modules (1)；Data processing unit includes main PLC (2), standby PLC (3), the first protocol converter (4), the first protocol converter (4) and one Group I/O modules (1) connection, the output signal of I/O modules (1) is received, meanwhile, main PLC (2), standby PLC (3) assist with first respectively Converter (4) connection is discussed, the first protocol converter (4) is exported to main PLC after the output signal received is carried out into protocol conversion (2), standby PLC (3) is analyzed and processed；Data display unit includes one group of repeater (5), each repeater (5) while be connected with main PLC (2), standby PLC (3), leads The signal that analyzing and processing finishes is passed to repeater (5), repeater (5) display water inlet information by PLC (2), standby PLC (3) respectively And synchronously send sound and light alarm signal.
- 2. universal water inlet detecting and warning system according to claim 1, it is characterised in that：Main PLC (2) normal work When, standby PLC (3) is in semidormancy state, and now, standby PLC (3) only carries out the analyzing and processing of signal and is not transferred to repeater (5)；When main PLC (2) breaks down, the signal that analyzing and processing finishes is passed to repeater (5) by standby PLC (3).
- 3. universal water inlet detecting and warning system according to claim 1, it is characterised in that：It is total also to include two-way CAN BUS Line, respectively CANBUS buses I (7) and CANBUS buses II (8), CANBUS buses I (7) and CANBUS buses II (8) are respectively It is connected between I/O modules (1) and the first protocol converter (4).
- 4. universal water inlet detecting and warning system according to claim 1, it is characterised in that：I/O modules (1) collection switch Signal is measured, the collection circuit of I/O modules (1) includes collection port, resistance R1, resistance R2, operational amplifier, and resistance R1 is 10k Ω, resistance R2 are 16.8k Ω, and collection port is in parallel with resistance R2 again after being connected with resistance R1, and resistance R1 is combined into resistance R2 Equivalent resistance and operational amplifier in-phase input end connect.
- 5. universal water inlet detecting and warning system according to claim 1, it is characterised in that：I/O modules (1) collection simulation Signal is measured, the collection circuit of I/O modules (1) includes collection port, operational amplifier, and collection port connects with operational amplifier signal Connect.
- 6. universal water inlet detecting and warning system according to claim 2, it is characterised in that：It is total also to include MODBUS-RTU Line (11), repeater (5) form signal with main PLC (2) or standby PLC (3) by MODBUS-RTU buses (11) and are connected.
- 7. the universal water inlet detecting and warning system according to claim 1 or 6, it is characterised in that：Also include second protocol Converter (6), second protocol converter (6) include CANBUS, MODBUS-RTU, MODBUS-TCP port, second protocol conversion Device (6) be connected between repeater (5) and main PLC (2) and/or repeater (5) and standby PLC (3) between.
- 8. universal water inlet detecting and warning system according to claim 1, it is characterised in that：First protocol converter (4) Including CANBUS, PROFIBUS, MODBUS-TCP port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710522467.6A CN107357162B (en) | 2017-06-30 | 2017-06-30 | General type detection alarm system that intakes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710522467.6A CN107357162B (en) | 2017-06-30 | 2017-06-30 | General type detection alarm system that intakes |
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| Publication Number | Publication Date |
|---|---|
| CN107357162A true CN107357162A (en) | 2017-11-17 |
| CN107357162B CN107357162B (en) | 2020-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710522467.6A Active CN107357162B (en) | 2017-06-30 | 2017-06-30 | General type detection alarm system that intakes |
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