CN113135609A - Ship domestic sewage shore discharge system based on GPS and control method thereof - Google Patents
Ship domestic sewage shore discharge system based on GPS and control method thereof Download PDFInfo
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- CN113135609A CN113135609A CN202110540045.8A CN202110540045A CN113135609A CN 113135609 A CN113135609 A CN 113135609A CN 202110540045 A CN202110540045 A CN 202110540045A CN 113135609 A CN113135609 A CN 113135609A
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- 239000010865 sewage Substances 0.000 title claims abstract description 175
- 238000000034 method Methods 0.000 title claims abstract description 26
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- 238000007599 discharging Methods 0.000 claims abstract description 23
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 36
- 239000013078 crystal Substances 0.000 claims description 17
- 230000001954 sterilising effect Effects 0.000 claims description 14
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- 238000006243 chemical reaction Methods 0.000 claims description 6
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63J—AUXILIARIES ON VESSELS
- B63J4/00—Arrangements of installations for treating ballast water, waste water, sewage, sludge, or refuse, or for preventing environmental pollution not otherwise provided for
- B63J4/006—Arrangements of installations for treating ballast water, waste water, sewage, sludge, or refuse, or for preventing environmental pollution not otherwise provided for for treating waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/008—Originating from marine vessels, ships and boats, e.g. bilge water or ballast water
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/42—Liquid level
Abstract
The invention provides a GPS-based ship domestic sewage shore discharge system and a control method thereof, wherein the system comprises the following steps: domestic sewage treatment plant, ultraviolet germicidal device, detection control module and with detection control module electric connection's crushing dredge pump, domestic sewage treatment plant sets up the blowdown export to connect gradually crushing dredge pump, ultraviolet germicidal device and prevent unrestrained valve, acquire positional information through the GPS module, acquire liquid level information through control module, judge whether the boats and ships accord with the requirement according to the positional information who acquires, judge whether the liquid level accords with the requirement according to the liquid level information who acquires, if accord with, transfer to automatic mode, if do not accord with, then transfer to manual mode. The ship domestic sewage shore discharging system based on the GPS and the control method thereof can realize automatic control of domestic sewage discharging, reduce the labor intensity of a turbine operator, effectively avoid pollution caused by sewage leakage and effectively promote automatic management of ships.
Description
Technical Field
The invention relates to the technical field of ship pollution discharge, in particular to a GPS-based ship domestic sewage distance shore discharge system and a control method thereof.
Background
The life sewage of the ship is an important ship pollution source, and a series of regulations are issued internationally for preventing and treating the ship pollution. Taking ship domestic sewage as an example, with the improvement of the ship domestic sewage treatment process, a series of novel scientific domestic sewage treatment means, such as a physical chemical method, an electrolytic method, a biological method and a membrane biological method, appear. However, due to the strict requirements of relevant national regulations on the discharge control standard (GB 3352-2018), the discharge of the treated domestic sewage of the ship is always an urgent problem to be solved. In 2018, the discharge control standard of ship water pollution issued by the ministry of national ecological environment comes into effect, wherein the discharge standard of ship domestic sewage is higher than the current regulation and MARPOL convention. The mandatory property of the technical policy for preventing and treating the water pollution of the ships is clarified through the synchronously issued policy. On the way of driving, when a ship turbine operator manages the discharge of the domestic water treatment device in daily life, whether the current ship navigation state meets the relevant regulation discharge conditions or not can not be known, and great difficulty is brought to the management of the domestic sewage treatment device. Therefore, it is necessary to design a GPS-based marine life sewage distance shore discharge system.
Disclosure of Invention
The invention aims to provide a GPS-based ship domestic sewage shore discharge system and a control method thereof, which have the advantages of simple structure and easiness in installation, can realize automatic control of discharge of a domestic sewage treatment device, reduce the labor intensity of a turbine operator, effectively avoid pollution caused by sewage leakage and effectively promote automatic management of ships.
In order to achieve the purpose, the invention provides the following scheme:
a GPS-based marine life sewage remote shore discharge system comprising: the domestic sewage treatment device is provided with two sewage discharge outlets, one sewage discharge outlet is connected with a shore connector pipe system and used for discharging domestic sewage to shore for treatment when the domestic sewage comes to shore, the other sewage discharge outlet is connected with a crushing sewage discharge pump through a sewage discharge pipeline, the crushing sewage discharge pump is connected with the ultraviolet sterilization device through the sewage discharge pipeline, and the ultraviolet sterilization device is connected with a wave prevention valve through the sewage discharge pipeline and used for discharging the domestic sewage into the sea;
the detection control module comprises a GPS module, a control module and a plurality of sensors, the GPS module and the sensors are electrically connected with the control module, the control module is electrically connected with the smashing sewage pump and used for controlling the mode conversion of the smashing sewage pump, the sensors comprise a first liquid level sensor, a second liquid level sensor, a third liquid level sensor and a flow sensor, the first liquid level sensor, the second liquid level sensor and the third liquid level sensor are respectively arranged at a low water level position, a high water level position and an ultrahigh water level position of a sewage bucket of the domestic sewage treatment device and used for detecting the water level of the domestic sewage treatment device, and the flow sensor is arranged on a sewage pipeline between the ultraviolet sterilization device and the wave prevention valve and used for detecting whether treated domestic sewage exists in the sewage pipeline.
Optionally, the shore connection pipe system comprises a shore connection blow-off pipe, a shore connection joint and a stop valve arranged on the shore connection blow-off pipe, wherein one path of blow-off port of the domestic sewage treatment device is connected with the shore connection blow-off pipe, and the shore connection joint is used for discharging domestic sewage to a shore for treatment when the shore is leaned on.
Optionally, the domestic sewage treatment device is further provided with a domestic sewage main pipe, a vent pipe, an inflation pipe and a clean water pipe, a gate valve is arranged on the domestic sewage main pipe, a ventilation cap is arranged at the tail end of the vent pipe, the ventilation cap is a copper wire fireproof net, and a sampling port is arranged on a sewage discharge pipeline between the ultraviolet sterilization device and the wave prevention valve and used for sampling the treated sewage.
Optionally, the crushing sewage pump is connected with a control mode change-over switch, and the control mode change-over switch is electrically connected with the control module.
Optionally, the control module includes a single chip microcomputer master control circuit, an LCD display circuit, a 5V power supply circuit and an LED status indication circuit, the 5V power supply circuit is connected to the single chip microcomputer master control circuit and is used for supplying power to the single chip microcomputer master control circuit, and the LCD display circuit and the LED status indication circuit are connected to the single chip microcomputer master control circuit.
Optionally, the single chip microcomputer master control circuit is an STC89C52 single chip microcomputer, the LCD display circuit is a chinese character graphic type liquid crystal display module with an LCD128 × 64 dot matrix, the 5V power supply circuit includes a transformer, a rectification filter circuit and an LM7805 three-terminal voltage stabilization integrated circuit, 220 ac power is stepped down to 9V ac power through the transformer, 9V ac power is changed into 9V dc power through the rectification filter circuit, and a 5V regulated power supply is obtained through the LM7805 three-terminal voltage stabilization integrated circuit.
Optionally, the GPS module includes 3.3V power supply circuit and GPS chip circuit, 3.3V power supply circuit connects GPS chip circuit for supply power for GPS chip circuit, GPS chip circuit is UBLOX-7M GPS positioning chip, 3.3V power supply circuit includes filter circuit and AMS117 stabiliser, filter circuit has two sets ofly, connects respectively the input and the output of AMS117 stabiliser, 5V power supply circuit is connected to 3.3V power supply circuit's input, and the input of 5V constant voltage power supply through filter circuit access AMS117 stabiliser obtains 3.3V constant voltage power supply from the output through filter circuit again.
Optionally, the single chip microcomputer master control circuit is further connected with a single chip microcomputer crystal oscillator circuit, a single chip microcomputer reset circuit, a relay output circuit and an alarm circuit, the single chip microcomputer crystal oscillator circuit is used for generating control signals for the single chip microcomputer master control circuit, the single chip microcomputer reset circuit is used for enabling all circuits to be restored to an initial state, the relay output circuit is used for being connected with the control mode change-over switch to achieve control mode conversion, and the alarm circuit is used for giving an alarm.
A GPS-based ship domestic sewage distance shore discharge system control method is applied to the GPS-based ship domestic sewage distance shore discharge system and comprises the following steps:
step 1: capturing satellites to be detected according to a certain cut-off angle through a GPS module, tracking the operation of the satellites, measuring the pseudo distance and the change rate of the distance from a receiving antenna of the GPS module to the satellites after the GPS module captures the tracked satellite signals, demodulating satellite orbit parameters, and positioning according to the obtained parameters and a positioning calculation method to calculate the position information of the ship;
step 2: the control module acquires liquid level information of the domestic sewage treatment device in real time, judges whether the ship is in a planning range and whether the ship speed meets requirements or not according to the acquired position information of the ship, judges whether the liquid level meets the requirements or not according to the acquired liquid level information, controls the control mode change-over switch to be switched to an automatic mode through the relay output circuit if the liquid level meets the requirements, and controls the control mode change-over switch to be switched to a manual mode if any condition is not met.
Optionally, in step 2, judging whether the ship is in the planning range according to the obtained ship position information, specifically:
and translating the control line to the sea by a specified distance from the pilot baseline to obtain a control line, wherein the outside of the control line is a discharge area, and the inside of the control line is an exclusion area, and judging that the position of the ship is in the discharge area or the exclusion area according to the obtained ship position information.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects: according to the ship domestic sewage shore discharging system based on the GPS and the control method thereof, the GPS positioning technology, the single chip microcomputer program control technology and the multi-sensor cooperative treatment are utilized, the automatic discharging of the ship domestic sewage is realized, the problem of pollution caused by the leakage of the sewage is effectively avoided, the automatic management of the ship is promoted, the inherent pipeline of the ship originally-installed domestic sewage treatment device does not need to be changed, and the system is convenient to install; the GPS module and the control module are arranged on the ship, so that the automatic discharge is realized within the ranges of the established sewage level, the ship speed and the ship position, and the function of manually controlling the discharge is realized at other moments or under other conditions; the system is provided with a shore connection pipe system, and when the system has a shore approaching condition, domestic sewage can be discharged to the shore through the shore connection pipe system for treatment; the system is provided with a first liquid level sensor, a second liquid level sensor and a third liquid level sensor which are respectively arranged at a low water level position, a high water level position and an ultrahigh water level position of a sewage bucket of the domestic sewage treatment device, the water level of the sewage bucket is monitored in real time, obtained information is transmitted to a control module, and when the water level reaches the ultrahigh water level position, the control module gives an alarm to remind a worker to treat; the GPS module and the control module comprise a GPS chip circuit, a single chip microcomputer main control circuit, an LCD display circuit, a 5V power supply circuit, a 3.3V power supply circuit and an LED state indicating circuit, wherein the GPS chip circuit selects a UBLOX-7M GPS positioning chip, the accuracy is high, and the requirement of using the ship under the offshore working condition can be completely met, the single chip microcomputer main control circuit adopts an STC89C52 single chip microcomputer which is a low-power-consumption and high-performance CMOS 8-bit microcontroller and is provided with a smart 8-bit CPU and a system programmable Flash, the 5V power supply circuit supplies power to the single chip microcomputer, the 3.3V power supply circuit supplies power to the GPS chip circuit, the LCD display circuit adopts a Chinese character graphic type liquid crystal display module of an LCD128 x 64 lattice, the liquid crystal display is driven to be ST7920 and can display Chinese characters or graphics, and the LED state indicating circuit can display the running state of each component; the control module further comprises a relay output circuit, an alarm circuit, a single chip microcomputer reset circuit and a single chip microcomputer crystal oscillator circuit, the relay output circuit can realize the automatic and manual function conversion of the smashing and sewage discharging pump, the alarm circuit gives an alarm when the water level of the domestic sewage treatment device reaches the ultrahigh water level position to remind a worker to treat the domestic sewage, the single chip microcomputer crystal oscillator circuit is used for providing required control signals for the single chip microcomputer, and the single chip microcomputer reset circuit is used for enabling the circuit to be restored to the initial state.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic structural diagram of a GPS-based marine life sewage distance shore discharge system according to an embodiment of the invention;
FIG. 2 is a circuit diagram of a GPS chip;
FIG. 3 is a circuit diagram of a master control of the single chip microcomputer;
FIG. 4 is a circuit diagram of an LCD display;
FIG. 5 is a circuit diagram of a 5V power supply;
FIG. 6 is a circuit diagram of a 3.3V power supply;
FIG. 7 is a circuit diagram of a single-chip crystal oscillator;
FIG. 8 is a circuit diagram of the reset of the single chip microcomputer;
FIG. 9 is a relay output circuit diagram;
FIG. 10 is a circuit diagram of an LED status indication;
FIG. 11 is a circuit diagram of a level sensor;
FIG. 12 is a flow sensor circuit diagram;
FIG. 13 is a circuit diagram of an alarm;
FIG. 14 is a block flow diagram of a GPS-based control method for a marine life sewage distance shore discharge system according to an embodiment of the present invention;
FIG. 15 is a schematic view of the discharge area based on the pilot baseline.
Reference numerals: 1. a domestic sewage treatment device; 2. a crushing sewage pump; 3. an ultraviolet sterilization device; 4. a sampling port; 5. a wave valve; 6. a flow sensor; 7. a detection control module; 8. controlling a mode switcher; 9. a first liquid level sensor; 10. a second liquid level sensor; 11. a third liquid level sensor; 12. a clear water pipe; 13. an inflation tube; 14. a breathable cap; 15. a gas permeable pipe; 16. a domestic sewage main pipe; 17. a gate valve; 18. a shore connection joint; 19. a stop valve; 20. a sewage draining pipeline; 21. a shore-through blow-off pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a GPS-based ship domestic sewage shore discharge system and a control method thereof, which have the advantages of simple structure and easiness in installation, can realize automatic control of discharge of a domestic sewage treatment device, reduce the labor intensity of a turbine operator, effectively avoid pollution caused by sewage leakage and effectively promote automatic management of ships.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Fig. 1 is a schematic structural diagram of a GPS-based marine life sewage distance shore emission system according to an embodiment of the present invention, and as shown in fig. 1, the GPS-based marine life sewage distance shore emission system according to an embodiment of the present invention includes: the domestic sewage treatment device 1 is provided with two sewage discharge outlets, one sewage discharge outlet is connected with a shore connector pipe system and used for discharging domestic sewage to shore for treatment when the domestic sewage is in shore, the other sewage discharge outlet is connected with the crushing sewage discharge pump 2 through a sewage discharge pipeline 20, the crushing sewage discharge pump 2 is connected with the ultraviolet sterilization device 3 through the sewage discharge pipeline 20, and the ultraviolet sterilization device 3 is connected with a wave prevention valve 5 through the sewage discharge pipeline 20 and used for discharging the domestic sewage into the sea;
the detection control module 7 comprises a GPS module, a control module and a plurality of sensors, the GPS module and the sensors are electrically connected with the control module, the control module is electrically connected with the crushing sewage pump 2, the plurality of sensors comprise a first liquid level sensor 9, a second liquid level sensor 10, a third liquid level sensor 11 and a flow sensor 6, the first liquid level sensor 9, the second liquid level sensor 10 and the third liquid level sensor 11 are respectively arranged at a low water level, a high water level and an ultrahigh water level of a sewage barrel of the domestic sewage treatment device 1 and are used for detecting the water level of the domestic sewage treatment device 1, wherein the first liquid level sensor 9 is used for controlling the manual operation mode of the crushing sewage pump 3 at the low water level, the second liquid level sensor 10 is used for controlling the automatic operation mode of the crushing sewage pump 3 at the high water level, and the third liquid level sensor 11 is used for alarming at the ultrahigh water level, the flow sensor 6 is arranged on the sewage discharge pipeline 20 between the ultraviolet sterilization device 3 and the wave-proof valve 5 and is used for detecting whether the treated domestic sewage exists in the sewage discharge pipeline 20 connected with the ultraviolet sterilization device 3.
The shore connection pipe system comprises a shore connection blow-off pipe 21, a shore connection 18 and a stop valve 19 arranged on the shore connection blow-off pipe 21, wherein the shore connection 18 conforms to the regulation of national navigation legal inspection technical rules, one path of blow-off port of the domestic sewage treatment device 1 is connected with the shore connection blow-off pipe 21, the shore connection blow-off pipe 21 is connected with the shore connection 18 and used for discharging domestic sewage to the shore for treatment when the shore is leaned on, and the stop valve 19 and the shore connection 18 are made of cast steel materials.
The domestic sewage treatment device 1 is further provided with a domestic sewage main pipe 16, a vent pipe 15, an inflation pipe 13 and a clean water pipe 12, wherein a gate valve 17 is arranged on the domestic sewage main pipe 16, a ventilation cap 14 is arranged at the tail end of the vent pipe 15, the ventilation cap 14 is a copper wire fireproof net, a sampling port 4 is arranged on a sewage discharge pipeline between the ultraviolet sterilization device 3 and the wave prevention valve 5, a valve can be arranged on the sampling port 4, the treated domestic sewage can be sampled, whether the treated domestic sewage meets the discharge standard or not is detected, the gate valve 17 is made of cast steel, the wave prevention valve 5 is closable and made of cast steel, the discharge capacity of the crushing sewage discharge pump 2 is 3.0m2/h。
All the pipelines adopt No. 20 seamless steel pipes and are galvanized.
The crushing sewage pump 2 is connected with a control mode change-over switch 8, the control mode change-over switch 8 is electrically connected with the control module, and the control module controls the control mode change-over switch 8 to realize automatic and manual switching of the crushing sewage pump 2.
As shown in fig. 2 to 13, the control module includes a single chip microcomputer master control circuit, an LCD display circuit, a 5V power supply circuit and an LED status indication circuit, the 5V power supply circuit is connected to the single chip microcomputer master control circuit and is configured to supply power to the single chip microcomputer master control circuit, and the LCD display circuit and the LED status indication circuit are connected to the single chip microcomputer master control circuit.
As shown in fig. 3, the single chip microcomputer master control circuit is an STC89C52 single chip microcomputer, which is a low-power consumption and high-performance CMOS 8-bit microcontroller with smart 8-bit CPU and Flash programmable in the system;
as shown in fig. 4, the LCD display circuit is a chinese character graphic type LCD module of LCD128 × 64 dot matrix, the driving of the LCD module is ST7920, the LCD module can display chinese characters or graphics, two connection modes of parallel or serial can be realized through PSB setting, without chip selection signals, having multiple functions of cursor display, picture shift, sleep mode, etc., the data end of the display module is connected with the P0 port of the main control circuit of the single chip microcomputer, the enable end, the read/write signal end and the register selection are respectively connected with the P2.5, P2.6 and P2.7 ends of the main control circuit of the single chip microcomputer;
as shown in fig. 5, the 5V power supply circuit includes a transformer, a rectifying and filtering circuit and an LM7805 three-terminal voltage-stabilizing integrated circuit, the transformer steps down 220 ac power to 9V ac power, the rectifying and filtering circuit converts 9V ac power to 9V dc power, and the 9V ac power is connected to an input end of the LM7805 three-terminal voltage-stabilizing integrated circuit, wherein an output end is connected to a filter capacitor as well as the input end, so as to obtain a 5V regulated power supply;
as shown in fig. 10, the cathodes of four LED lamps in the LED status indication circuit are grounded, and the anodes thereof are respectively connected to the corresponding control pins of the main control circuit of the single chip microcomputer.
As shown in fig. 2, the GPS module is connected to the control module through a data line for determining the ship's sailing position and calculating the speed, the GPS module includes a 3.3V power circuit and a GPS chip circuit, the 3.3V power circuit is connected to the GPS chip circuit for supplying power to the GPS chip circuit, the GPS chip circuit is a UBLOX-7M GPS positioning chip, wherein the SMA antenna signal is amplified by a MAX2659 high gain low noise amplifier and then connected to the UBLOX-7M antenna signal input terminal, and when the chip is cold-started, satellite ephemeris data information is passed through I2C to 32k EEPROM, i.e.In 24C32, chip USB _ DM, USB _ DP pin are connected to Micro USB mother on the head, through RXD and TXD and singlechip serial ports communication transmission data, and the GPS precision can reach 2 meters when actual test, can satisfy the boats and ships completely and use under marine operating mode.
As shown in fig. 6, the 3.3V power supply circuit includes two sets of filter circuits and an AMS117 voltage stabilizer, the two sets of filter circuits are respectively connected to an input end and an output end of the AMS117 voltage stabilizer, the input end of the 3.3V power supply circuit is connected to a 5V power supply circuit, the input 5V voltage stabilizer is connected to the input end of the AMS117 voltage stabilizer through the filter circuit, and then the 3.3V voltage stabilizer is obtained from the output end through the filter circuit.
The single chip microcomputer crystal oscillator circuit is connected with a single chip microcomputer crystal oscillator circuit, a single chip microcomputer reset circuit, a relay output circuit and an alarm circuit, as shown in figure 7, the single chip microcomputer crystal oscillator circuit is characterized in that crystal oscillators are connected to two ends of an inverting amplifier, one ends of two capacitors are respectively connected to two ends of the crystal oscillators, the other ends of the two capacitors are grounded, the capacitance of the two capacitors connected in series is equal to a load capacitor, and the single chip microcomputer crystal oscillator circuit generates a required control signal for the single chip microcomputer;
as shown in fig. 8, the single chip microcomputer reset circuit is used for restoring all circuits to an initial state, and is used when the operation is restarted or when a program is needed;
as shown in fig. 9, the relay output circuit is used for connecting the control mode switch to realize switching of the control mode, a base electrode of a 9014 triode in the relay output circuit is connected with a control pin of the single chip microcomputer, VCC is connected with a collector electrode of the triode through a relay coil, an emitter electrode is grounded, the relay coil is connected with a diode in parallel, when the relay coil is released and powered down, energy stored in the coil is discharged to a protection coil, wherein a normally closed contact of the relay output circuit is in a manual mode, a normally open contact of the relay output circuit is in an automatic mode, a mode signal of a main control circuit of the single chip microcomputer is transmitted through a transmission line to control the opening and closing of the relay output circuit, and a mode control function is realized;
as shown in fig. 13, the alarm circuit is used for alarming, wherein the control signal of the single chip microcomputer is connected to the base of the triode, the positive electrode of the power supply is connected to the collector of the triode, and the emitter of the triode is connected in series with the alarm and the resistor and is grounded.
As shown in fig. 11, the potentiometer divided voltage values of the first liquid level sensor 9, the second liquid level sensor 10 and the third liquid level sensor 11 are connected to the input negative terminal of the comparator, the signal of the liquid level sensor is connected to the positive terminal of the comparator, and the output signal is connected to the pin of the single chip microcomputer after being connected in series with the resistor.
As shown in fig. 12, the VCC pin of the flow sensor 6 is connected to the positive electrode of the power supply, the GND pin is grounded, and the S pin is connected to the pin of the single chip microcomputer.
The GPS chip circuit is used for detecting the real-time longitude and latitude and the navigation speed of a ship and transmitting the real-time data to the singlechip main control circuit, the singlechip main control circuit carries out data analysis and logic judgment on the data transmitted by the GPS chip circuit and the liquid level sensor, when the position, the navigation speed and the liquid level meet the requirements, the data is converted into automatic control, signals are transmitted to the relay output circuit to enable the relay output circuit to act, otherwise, the relay output circuit keeps the original state, the singlechip main control circuit transmits the analyzed GPS data and the data of the flow sensor to the LCD display circuit to display, lights corresponding indicating lamps in the LED state indicating circuit according to requirements, the LCD display circuit also displays the current automatic or manual state of the ship domestic sewage control system, the real-time navigation speed of the ship and the real-time longitude and latitude of the ship, the singlechip crystal oscillator circuit is used for generating the clock frequency necessary for the singlechip main control circuit, the single chip microcomputer reset circuit is used for enabling the circuit to be restored to an initial state.
As shown in fig. 14, a GPS-based control method for a marine life sewage distance shore discharge system is applied to the GPS-based marine life sewage distance shore discharge system, and includes the following steps:
step 1: capturing a satellite to be detected selected according to a certain cut-off angle through a GPS module, tracking the operation of the satellite, measuring the pseudo distance and the change rate of the distance from a receiving antenna of the GPS module to the satellite after the GPS module captures a tracked satellite signal, demodulating parameters such as satellite orbit parameters and the like, and positioning and calculating the position information of a ship according to the obtained data and a positioning calculation method, wherein the position information comprises the information such as longitude and latitude, height, speed, time and the like of the geographical position of the ship;
step 2: the control module acquires liquid level information of the domestic sewage treatment device in real time, judges whether the ship is in a planning range and whether the ship speed meets requirements or not according to the acquired position information of the ship, judges whether the liquid level meets the requirements or not according to the acquired liquid level information, namely, the first liquid level sensor and the second liquid level sensor detect the liquid level information if the liquid level meets the requirements, controls the control mode change-over switch to be switched to an automatic mode through the relay output circuit, and controls the control mode change-over switch to be switched to a manual mode if any condition is not met.
In step 2, judging whether the ship is in a planning range according to the obtained ship position information, specifically:
as shown in fig. 15, the straight-line baseline refers to that under the condition that a coastline is extremely tortuous or a series of islands exist in an offshore area, a certain appropriate point can be selected on the coastline or the offshore island, and a method for connecting the appropriate points is adopted to form the straight-line baseline, so that the coastline is tortuous in China, a plurality of coastal islands are formed, the baseline determination method basically adopts a straight-line method, and according to relevant regulations for domestic sewage discharge of a ship, the distance between the ship and the shore is actually the nearest distance between the ship and a leading sea baseline, and the dischargeable area range of the ship can be planned in advance, and specifically, two methods are adopted:
the method comprises the following steps: and translating the control line to the sea by a specified distance from the pilot baseline to obtain a control line, wherein the outside of the control line is a discharge area, and the inside of the control line is an exclusion area, and judging that the position of the ship is in the discharge area or the exclusion area according to the obtained ship position information.
The method 2 comprises the following steps: the ship is used as the center of a circle, a circle is drawn by using a specified distance as a radius, and the ship cannot be discharged as long as the ship touches the cravat line.
Taking the method 1 as an example, the control module judges whether the ship is in the planning range and whether the ship speed meets the requirements according to the acquired position information of the ship, controls the relay output circuit to be switched to the automatic mode if the conditions are met, and sets the relay output circuit to be in the manual mode if any condition is not met.
According to the invention, the inherent pipeline of the ship domestic sewage treatment device is not required to be changed, the ship position, the navigation speed data and the liquid level sensor data are obtained and processed through the GPS module and the control module, and the control module sets the program logic to judge whether the starting condition of the crushing sewage pump is met or not, so that the conversion of the control mode of the crushing sewage pump is controlled, and the aim of controlling the discharge of the domestic sewage is further realized.
According to the ship domestic sewage shore discharging system based on the GPS and the control method thereof, the GPS positioning technology, the single chip microcomputer program control technology and the multi-sensor cooperative treatment are utilized, the automatic discharging of the ship domestic sewage is realized, the problem of pollution caused by the leakage of the sewage is effectively avoided, the automatic management of the ship is promoted, the inherent pipeline of the ship originally-installed domestic sewage treatment device does not need to be changed, and the system is convenient to install; the GPS module and the control module are arranged on the ship, so that the automatic discharge is realized within the ranges of the established sewage level, the ship speed and the ship position, and the function of manually controlling the discharge is realized at other moments or under other conditions; the system is provided with a shore connection pipe system, and when the system has a shore approaching condition, domestic sewage can be discharged to the shore through the shore connection pipe system for treatment; the system is provided with a first liquid level sensor, a second liquid level sensor and a third liquid level sensor which are respectively arranged at a low water level position, a high water level position and an ultrahigh water level position of a sewage bucket of the domestic sewage treatment device, the water level of the sewage bucket is monitored in real time, obtained information is transmitted to a control module, and when the water level reaches the ultrahigh water level position, the control module gives an alarm to remind a worker to treat; the GPS module and the control module comprise a GPS chip circuit, a single chip microcomputer main control circuit, an LCD display circuit, a 5V power supply circuit, a 3.3V power supply circuit and an LED state indicating circuit, wherein the GPS chip circuit selects a UBLOX-7M GPS positioning chip, the accuracy is high, and the requirement of using the ship under the offshore working condition can be completely met, the single chip microcomputer main control circuit adopts an STC89C52 single chip microcomputer which is a low-power-consumption and high-performance CMOS 8-bit microcontroller and is provided with a smart 8-bit CPU and a system programmable Flash, the 5V power supply circuit supplies power to the single chip microcomputer, the 3.3V power supply circuit supplies power to the GPS chip circuit, the LCD display circuit adopts a Chinese character graphic type liquid crystal display module of an LCD128 x 64 lattice, the liquid crystal display is driven to be ST7920 and can display Chinese characters or graphics, and the LED state indicating circuit can display the running state of each component; the control module further comprises a relay output circuit, an alarm circuit, a single chip microcomputer reset circuit and a single chip microcomputer crystal oscillator circuit, the relay output circuit can realize the automatic and manual function conversion of the smashing and sewage discharging pump, the alarm circuit gives an alarm when the water level of the domestic sewage treatment device reaches the ultrahigh water level position to remind a worker to treat the domestic sewage, the single chip microcomputer crystal oscillator circuit is used for providing required control signals for the single chip microcomputer, and the single chip microcomputer reset circuit is used for enabling the circuit to be restored to the initial state.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (10)
1. The utility model provides a boats and ships domestic sewage apart from bank discharge system based on GPS, includes domestic sewage treatment plant, its characterized in that still includes: the domestic sewage treatment device is provided with two sewage discharge outlets, one sewage discharge outlet is connected with a shore connector piping system and used for discharging domestic sewage to shore for treatment when the domestic sewage comes to shore, the other sewage discharge outlet is connected with the crushing sewage discharge pump through a sewage discharge pipeline, the crushing sewage discharge pump is connected with the ultraviolet sterilization device through the sewage discharge pipeline, and the ultraviolet sterilization device is connected with a wave prevention valve through the sewage discharge pipeline and used for discharging the domestic sewage into the sea;
the detection control module comprises a GPS module, a control module and a plurality of sensors, the GPS module and the sensors are electrically connected with the control module, the control module is electrically connected with the smashing sewage pump and used for controlling the mode conversion of the smashing sewage pump, the sensors comprise a first liquid level sensor, a second liquid level sensor, a third liquid level sensor and a flow sensor, the first liquid level sensor, the second liquid level sensor and the third liquid level sensor are respectively arranged at a low water level position, a high water level position and an ultrahigh water level position of a sewage bucket of the domestic sewage treatment device and used for detecting the water level of the domestic sewage treatment device, and the flow sensor is arranged on a sewage pipeline between the ultraviolet sterilization device and the wave prevention valve and used for detecting whether treated domestic sewage exists in the sewage pipeline.
2. The GPS-based marine domestic sewage shore discharge system according to claim 1, wherein the shore connection piping comprises a shore connection sewage discharge pipe, a shore connection joint and a stop valve arranged on the shore connection sewage discharge pipe, one sewage discharge port of the domestic sewage treatment device is connected with the shore connection sewage discharge pipe, and the shore connection sewage discharge pipe is connected with the shore connection joint and is used for discharging the domestic sewage to the shore for treatment when the marine domestic sewage shore is in shore.
3. The GPS-based marine domestic sewage shore discharge system according to claim 1, wherein the domestic sewage treatment device is further provided with a domestic sewage main pipe, a vent pipe, an inflation pipe and a clean water pipe, the domestic sewage main pipe is provided with a gate valve, the tail end of the vent pipe is provided with a ventilation cap, the ventilation cap is a copper wire fireproof net, and a sewage discharge pipeline between the ultraviolet sterilization device and the wave prevention valve is provided with a sampling port for sampling the treated sewage.
4. The GPS-based marine life sewage shore discharge system of claim 1, wherein a control mode switch is connected to the pulverizing dredge pump, the control mode switch being electrically connected to the control module.
5. The GPS-based marine life sewage shore discharging system according to claim 4, wherein the control module comprises a single chip microcomputer master control circuit, an LCD display circuit, a 5V power supply circuit and an LED status indicating circuit, the 5V power supply circuit is connected with the single chip microcomputer master control circuit and used for supplying power to the single chip microcomputer master control circuit, and the LCD display circuit and the LED status indicating circuit are connected with the single chip microcomputer master control circuit.
6. The GPS-based marine life sewage distance shore discharging system according to claim 5, wherein the single chip microcomputer main control circuit is an STC89C52 single chip microcomputer, the LCD display circuit is a Chinese character graphic type LCD module of an LCD128 x 64 lattice, the 5V power supply circuit comprises a transformer, a rectification filter circuit and an LM7805 three-terminal voltage-stabilizing integrated circuit, 220 alternating current is reduced to 9V alternating current through the transformer, 9V alternating current is changed into 9V direct current through the rectification filter circuit, and a 5V stabilized voltage power supply is obtained through the LM7805 three-terminal voltage-stabilizing integrated circuit.
7. The GPS-based marine life sewage distance and shore discharging system of claim 6, wherein the GPS module comprises a 3.3V power supply circuit and a GPS chip circuit, the 3.3V power supply circuit is connected with the GPS chip circuit and used for supplying power to the GPS chip circuit, the GPS chip circuit is a UBLOX-7M GPS positioning chip, the 3.3V power supply circuit comprises two groups of filter circuits and AMS117 voltage regulators, the two groups of filter circuits are respectively connected with the input end and the output end of the AMS117 voltage regulator, the input end of the 3.3V power supply circuit is connected with a 5V power supply circuit, the input 5V voltage regulator is connected to the input end of the AMS117 voltage regulator through the filter circuit, and then the 3.3V voltage regulator is obtained from the output end through the filter circuit.
8. The GPS-based ship domestic sewage shore discharging system according to claim 6, wherein the singlechip crystal oscillator circuit is further connected with the singlechip crystal oscillator circuit, the singlechip reset circuit is used for generating control signals for the singlechip crystal oscillator circuit, the singlechip reset circuit is used for restoring all circuits to an initial state, the relay output circuit is used for being connected with the control mode change-over switch to realize the change-over of the control mode, and the alarm circuit is used for giving an alarm.
9. A GPS-based marine life sewage distance shore discharge system control method applied to the GPS-based marine life sewage distance shore discharge system according to any one of claims 1 to 8, comprising the steps of:
step 1: capturing satellites to be detected according to a certain cut-off angle through a GPS module, tracking the operation of the satellites, measuring the pseudo distance and the change rate of the distance from a receiving antenna of the GPS module to the satellites after the GPS module captures the tracked satellite signals, demodulating satellite orbit parameters, and positioning according to the obtained parameters and a positioning calculation method to calculate the position information of the ship;
step 2: the control module acquires liquid level information of the domestic sewage treatment device in real time, judges whether the ship is in a planning range and whether the ship speed meets requirements or not according to the acquired position information of the ship, judges whether the liquid level meets the requirements or not according to the acquired liquid level information, controls the control mode change-over switch to be switched to an automatic mode through the relay output circuit if the liquid level meets the requirements, and controls the control mode change-over switch to be switched to a manual mode if any condition is not met.
10. The GPS-based ship domestic sewage distance shore discharging system control method according to claim 9, wherein in step 2, it is determined whether the ship domestic sewage distance shore discharging system control method is within a planned range according to the obtained ship position information, specifically:
and translating the control line to the sea by a specified distance from the pilot baseline to obtain a control line, wherein the outside of the control line is a discharge area, and the inside of the control line is an exclusion area, and judging that the position of the ship is in the discharge area or the exclusion area according to the obtained ship position information.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110540045.8A CN113135609A (en) | 2021-05-18 | 2021-05-18 | Ship domestic sewage shore discharge system based on GPS and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110540045.8A CN113135609A (en) | 2021-05-18 | 2021-05-18 | Ship domestic sewage shore discharge system based on GPS and control method thereof |
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| CN113135609A true CN113135609A (en) | 2021-07-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115214869A (en) * | 2022-07-08 | 2022-10-21 | 江南造船(集团)有限责任公司 | Ship sewage treatment system with epidemic prevention and isolation functions and ship |
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- 2021-05-18 CN CN202110540045.8A patent/CN113135609A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115214869A (en) * | 2022-07-08 | 2022-10-21 | 江南造船(集团)有限责任公司 | Ship sewage treatment system with epidemic prevention and isolation functions and ship |
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