1. An anti displacement formula intelligence floats bed which characterized in that includes at least:

the floating bed comprises a floating bed body with a round platform hollow structure, wherein a solar charging device is arranged on the upper surface of the floating bed body, and an indicating lamp is arranged at the top end of the solar charging device;

the balance connecting plate is connected with the lower surface of the floating bed body; lock holes are formed in the periphery of the balance connecting plate;

the power assembly is arranged below the balance connecting plate;

the PLC module is arranged in the inner cavity of the floating bed body, and the GPS module is used for positioning the floating bed;

a pH value monitoring unit; wherein:

and the power output terminal of the solar charging device is electrically connected with power terminals of the PLC module, the indicator lamp, the power assembly, the GPS module and the pH value monitoring unit respectively.

2. The anti-displacement intelligent floating bed according to claim 1, wherein: the solar charging device includes: the photovoltaic modules are connected with the charging terminals of the storage battery sequentially through the bus bars and the electric energy control modules.

3. The anti-displacement intelligent floating bed according to claim 1, wherein: the power assembly comprises a hemispheroid arranged on the lower surface of the balance connecting plate; four groups of blades are uniformly arranged on the outer wall of the hemisphere; each group of blades is connected with a direct current motor; a driving circuit module is arranged in the hemisphere; the power output terminal of the solar charging device is connected with the power supply terminal of the driving circuit module; the PLC module is connected with a control terminal of the direct current motor through the driving circuit module.

4. The anti-displacement intelligent floating bed according to claim 1, wherein: the balance connecting plate is square; the lockhole is located four summits and the middle part at four edges of balanced connecting plate.

5. The anti-displacement intelligent floating bed according to claim 1, wherein: the pH value monitoring unit comprises a pH value monitoring sensor.

6. An anti-displacement ecological floating island, which is characterized in that: comprising the anti-displacement intelligent floating bed of claim 4; the balance connecting plate is connected with the plant floating bed unit through the lock hole.

7. The utility model provides an anti displacement formula intelligence floats bed system which characterized in that: comprising the anti-displacement intelligent floating bed of any one of claims 1-5; the floating bed body is provided with a wireless communication module for communication with the PLC module, and the upper computer performs data interaction with the PLC module through the wireless communication module.

8. An operation method of an anti-displacement intelligent floating bed is realized based on the anti-displacement intelligent floating bed of any one of claims 1-5; at least comprises the following steps:

s1, reading the positioning and electric quantity information of the intelligent floating bed by the upper computer;

s2, visual display: the host computer passes through the positioning information that visual map display intelligence floated the bed, and this positioning information includes: longitude, latitude, speed, azimuth and the percentage of the residual electric quantity of a storage battery in the floating bed, marking the floating island with low electric quantity by the upper computer in red for the floating island with the residual electric quantity less than or equal to 15%, and giving a voice alarm to prompt a worker to process in time;

s3, placing an ecological floating island formed by splicing a floating bed with sufficient electric energy and a common plant floating bed unit at the edge of a water area;

s4, setting parameters: setting an upper and lower pH value alarm threshold value and a data sampling period according to the characteristics of plants on the ecological floating island;

s5, controlling the floating island to a target water area:

s6, switching the floating island to an anti-displacement floating mode: after the floating island reaches the designated position, a mode switching instruction is sent to the floating island through an upper computer, and the PLC module takes the longitude and the latitude currently positioned by the GPS module as the origin coordinates of the PLC module and stores the longitude and the latitude; in this mode, the GPS module is in period T₂Updating longitude, latitude, speed, azimuth angle and declination information for 0.1 second and feeding back to the PLC module, wherein the PLC module uses the period T₃Comparing the positioning data, wherein T is used for realizing anti-shake comparison₃＝T₂0.02 second/5; when the displacement is judged to occur, the PLC moduleAnalyzing the relative displacement and state of the floating bed in water, calculating accurate PWM square waves which accord with the respective rotating speeds of the four blades, amplifying the PWM square waves by a driving circuit module and transmitting the amplified PWM square waves to four direct current motors, and further controlling the different rotating speeds and starting and stopping states of the four rotary vanes to enable the ecological floating island to offset the relative displacement caused by wind waves and water currents, so that the relative static state of the whole floating island on the horizontal plane is kept, and the ecological floating island enters an anti-displacement floating mode; PLC then operates at period T₃Repeating the comparison process infinitely for 0.02 second until the upper computer sends a mode switching instruction to the wireless communication module of the floating island, and switching the floating island back to the common mode;

s7, pH value monitoring: after the floating island enters an anti-displacement floating mode, the PLC module starts a pH value monitoring module, continuously monitors whether the pH value of the region exceeds a threshold value, and stores the pH value data of each sampling point; and the upper computer displays a pH value curve of the water body in a certain period.

9. The working method of the anti-displacement intelligent floating bed according to claim 8, wherein the S1 is specifically: the upper computer sends a request return instruction to the intelligent floating bed, the GPS module of the intelligent floating bed transmits the positioning data to the PLC module, and the PLC module returns the analyzed longitude, latitude, speed, azimuth angle, declination information and the percentage of the residual electric quantity of the storage battery to the upper computer through the wireless communication module through data analysis and processing.

10. The working method of the anti-displacement intelligent floating bed according to claim 8, wherein the S5 is specifically:

selecting an ecological floating island to be worked by an upper computer, inputting a geographical coordinate of a destination, sending data to a wireless communication module of the floating island, periodically comparing the received data with positioning information of a GPS (global positioning system) module by a PLC (programmable logic controller) module, and respectively outputting PWM (pulse-width modulation) square waves with proper frequency to four direct current motors by a driving circuit module according to a comparison result so as to control and adjust the running state of a power assembly, so that the floating island reaches a specified position in water, and at the moment, the time interval period T1 for updating the positioning information by the GPS module is 0.5 second;

or the floating island can be manually controlled to reach the target water area by a worker through a virtual rocker in the upper computer visual interface.

Background

The traditional river and lake treatment often changes the diversity of ecological environment, so that the water quality of the river is deteriorated and the ecological function is degraded. With the increase of the ecological environment protection, the ecological floating island technology is increasingly favored by the advantages of full utilization of the water area, wide source of carrier materials, easy manufacture and transportation of a floating bed, high water purification efficiency, no restriction of water level, no sedimentation of river channels and the like.

But practice finds that: the ecological floating island technology still has some problems and disadvantages in use; for example, the anchoring condition is limited by the bank slope and the bank base, and the application range is limited; the single body area is small, the wind and rain resistance effect is poor, and the self-stabilization effect is poor; the flat bottom of mechanized operation water, high management and maintenance cost and the like limit the ecological management and landscape construction of the large rivers and lakes by the ecological floating island.

Disclosure of Invention

The invention aims to provide an anti-displacement intelligent floating bed, an ecological floating island, a system and a working method, which can accurately offset the displacement of the floating bed caused by water flow and wind waves, so as to automatically keep the relative position of the floating bed or the ecological floating island taking the floating bed as the center in water, remotely adjust the position of the floating bed or the ecological floating island in water through an upper computer, and remotely monitor the change condition of pH value of a point position and the electric quantity of a battery of the floating bed, and adopts the following technical scheme:

a first object of the present application is to provide an anti-displacement intelligent floating bed, comprising:

the floating bed comprises a floating bed body with a round platform hollow structure, wherein a solar charging device is arranged on the upper surface of the floating bed body, and an indicating lamp is arranged at the top end of the solar charging device;

the balance connecting plate is connected with the lower surface of the floating bed body; lock holes are formed in the periphery of the balance connecting plate;

the power assembly is arranged below the balance connecting plate;

the PLC module is arranged in the inner cavity of the floating bed body, and the GPS module is used for positioning the floating bed;

a pH value monitoring unit; wherein:

and the power output terminal of the solar charging device is electrically connected with power terminals of the PLC module, the indicator lamp, the power assembly, the GPS module and the pH value monitoring unit respectively.

Preferably: the solar charging device includes: the photovoltaic modules are connected with the charging terminals of the storage battery sequentially through the bus bars and the electric energy control modules.

Preferably: the power assembly comprises a hemispheroid arranged on the lower surface of the balance connecting plate; four groups of blades are uniformly arranged on the outer wall of the hemisphere; each group of blades is connected with a direct current motor; a driving circuit module is arranged in the hemisphere; the power output terminal of the solar charging device drives the power supply terminal of the circuit module to be connected; the PLC module is connected with a control terminal of the direct current motor through the driving circuit module.

Preferably: the balance connecting plate is square; the lockhole is located four summits and the middle part at four edges of balanced connecting plate.

Preferably: the pH value monitoring unit comprises a pH value monitoring sensor.

A second object of the present application is to provide an anti-displacement ecological floating island, which comprises the above anti-displacement intelligent floating bed; the balance connecting plate is connected with the plant floating bed unit through the lock hole.

A third object of the present application is to provide an anti-displacement floating bed system, which includes the above-mentioned anti-displacement intelligent floating bed; the floating bed body is provided with a wireless communication module for communication with the PLC module, and the upper computer performs data interaction with the PLC module through the wireless communication module.

The fourth purpose of the present application is to provide a working method of the anti-displacement intelligent floating bed, which is implemented based on the anti-displacement intelligent floating bed; at least comprises the following steps:

s1, reading the positioning and electric quantity information of the intelligent floating bed by the upper computer;

s2, visual display: the host computer passes through the positioning information that visual map display intelligence floated the bed, and this positioning information includes: longitude, latitude, speed, azimuth and the percentage of the residual electric quantity of a storage battery in the floating bed, marking the floating island with low electric quantity by the upper computer in red for the floating island with the residual electric quantity less than or equal to 15%, and giving a voice alarm to prompt a worker to process in time;

s3, placing an ecological floating island formed by splicing a floating bed with sufficient electric energy and a common plant floating bed unit at the edge of a water area;

s4, setting parameters: setting an upper and lower pH value alarm threshold value and a data sampling period according to the characteristics of plants on the ecological floating island;

s5, controlling the floating island to a target water area:

s6, switching the floating island to an anti-displacement floating mode: after the floating island reaches the designated position, a mode switching instruction is sent to the floating island through an upper computer, and the PLC module takes the longitude and the latitude currently positioned by the GPS module as the origin coordinates of the PLC module and stores the longitude and the latitude; in this mode, the GPS module is in period T₂Updating longitude, latitude, speed, azimuth angle and declination information for 0.1 second and feeding back to the PLC module, wherein the PLC module uses the period T₃Comparing the positioning data, wherein T is used for realizing anti-shake comparison₃＝T₂0.02 second/5; when the displacement is judged to occur, the PLC module analyzes the relative displacement and the state of the floating bed in water, calculates accurate PWM square waves which accord with the respective rotating speeds of the four blades, and transmits the PWM square waves to the four direct current motors after being amplified by the driving circuit module so as to control the four rotary blades to not rotateThe ecological floating island is enabled to offset relative displacement caused by wind waves and water flow under the same rotating speed and starting and stopping states, so that the relative static state of the whole floating island on the horizontal plane is maintained, and an anti-displacement floating mode is entered; PLC then operates at period T₃Repeating the comparison process infinitely for 0.02 second until the upper computer sends a mode switching instruction to the wireless communication module of the floating island, and switching the floating island back to the common mode;

s7, pH value monitoring: after the floating island enters an anti-displacement floating mode, the PLC module starts a pH value monitoring module, continuously monitors whether the pH value of the region exceeds a threshold value, and stores the pH value data of each sampling point; and the upper computer displays a pH value curve of the water body in a certain period.

Preferably, the S1 is specifically: the upper computer sends a request return instruction to the intelligent floating bed, the GPS module of the intelligent floating bed transmits the positioning data to the PLC module, and the PLC module returns the analyzed longitude, latitude, speed, azimuth angle, declination information and the percentage of the residual electric quantity of the storage battery to the upper computer through the wireless communication module through data analysis and processing.

Preferably, the S5 is specifically:

selecting an ecological floating island to be worked by an upper computer, inputting a geographical coordinate of a destination, sending data to a wireless communication module of the floating island, periodically comparing the received data with positioning information of a GPS (global positioning system) module by a PLC (programmable logic controller) module, and respectively outputting PWM (pulse-width modulation) square waves with proper frequency to four direct current motors by a driving circuit module according to a comparison result so as to control and adjust the running state of a power assembly, so that the floating island reaches a specified position in water, and at the moment, the time interval period T1 for updating the positioning information by the GPS module is 0.5 second;

or the floating island is manually controlled by a worker through a virtual rocker in a visual interface of the upper computer to reach a target water area

By adopting the technical scheme of the invention, the invention has the following technical effects:

1. this application advances line location to floating bed through GPS positioning data, and give the PLC module with positional information transmission, the PLC module is handled GPS positioning data, judge the relative displacement of self in aqueous, and through output port to drive circuit module output PWM square wave control direct current motor's operation, and then control four vanes open stop and the rotational speed, the accurate bed displacement that floats that offsets rivers and stormy waves and cause, realize floating the bed relative position and the stability of automatic maintenance in aqueous under the non-fixed condition.

2. Only need an anti displacement formula to float the bed and be connected through the hasp formula with the ordinary plant of several and can splice into anti displacement type ecological chinampa, make whole chinampa under the non-fixed condition of aquatic, realize anti displacement's function, the ordinary plant of several floats a share anti displacement type and floats a bed unit and also saved the cost by a wide margin.

3. The floating bed or the ecological floating island formed by the floating bed is controlled to carry out displacement-resistant floating in water through the upper computer, the floating bed can be remotely controlled to be in shore and off shore, and meanwhile, the upper computer can monitor the pH value of a water body in real time, so that the management and maintenance of aquatic plants on the floating island are more convenient.

Drawings

Fig. 1 is a schematic structural view of an anti-displacement intelligent floating bed according to a preferred embodiment of the invention.

Fig. 2 is a schematic diagram of the electrical structure of the displacement-resistant intelligent floating bed according to the preferred embodiment of the invention.

Fig. 3 is a schematic structural view of the displacement-resistant ecological floating island in the preferred embodiment of the invention.

Fig. 4 is a schematic structural diagram of an anti-displacement intelligent floating bed system according to a preferred embodiment of the invention.

Fig. 5 is a communication diagram of the anti-displacement intelligent floating bed system according to the preferred embodiment of the invention.

Fig. 6 is a flow chart of the working method of the anti-displacement intelligent floating bed system according to the preferred embodiment of the invention.

Detailed Description

In order to enable the public and the examiners to further understand the features and advantages of the present invention, the following detailed description of the embodiments of the present invention is given by way of example:

according to the technical scheme, the displacement-resistant ecological floating island is constructed, a floating bed unit type structure is adopted, the floating bed unit type structure is freely assembled, various shapes are formed through the connecting fasteners, the ecological floating island with an attractive appearance is formed, and the technical progress of water ecological restoration and treatment and waterfront landscape construction is further promoted, so that the displacement-resistant ecological floating island is a significant and very urgent task.

Referring to fig. 1 and 2, an anti-displacement intelligent floating bed comprises a floating bed body 1-1 with a round platform hollow structure, wherein a solar charging device is arranged on the upper surface of the floating bed body 1-1, and an indicator light 1-6 is arranged at the top end of the solar charging device;

a balance connecting plate 1-3 connected with the lower surface of the floating bed body 1-1; lock holes 1-4 are formed in the periphery of the balance connecting plate 1-3;

the power assembly is arranged below the balance connecting plate 1-3;

the PLC module 2-1 is arranged in the inner cavity of the floating bed body 1-1, and the GPS module 2-2 is used for positioning the floating bed;

a pH value monitoring unit 2-5; wherein:

and the power output terminal of the solar charging device is electrically connected with power terminals of the PLC module 2-1, the indicator lamp 1-6, the power assembly, the GPS module 2-2 and the pH value monitoring unit 2-5 respectively.

In the preferred embodiment, the solar charging device is arranged on the floating bed body 1-1, the indicator lamp is arranged at the top end of the floating bed body, and the PLC module 2-1 and the GPS module for positioning the floating bed are arranged in the floating bed body; a power assembly and a pH value monitoring unit 2-5 are arranged below the floating bed body and are respectively in wired connection with the PLC module 2-1, the PLC module 2-1 compares the data of the GPS module 2-2 and controls the power assembly to enable the floating bed to accurately offset displacement caused by water flow and wind waves, so that the floating bed is automatically kept still at a relative position in water; a balance connecting plate 1-3 is arranged on the floating bed and used for assisting in keeping balance, and a lock hole 1-4 is arranged at the edge of the balance connecting plate 1-3 and used for being spliced with a common plant floating bed unit to form an ecological floating island; the floating bed body 1-1 is also provided with a wireless communication module 2-6 which is communicated with the PLC module 2-1, the remote adjustment of the position of the floating island, the shore and the off-shore can be realized through an upper computer, and the pH value of the water body in the water area and the electric quantity of the storage battery of the floating bed can be monitored in real time.

On the basis of the above preferred embodiment, the solar charging device includes: the floating bed comprises a plurality of photovoltaic assemblies, electric energy control modules 2-7 and storage batteries 2-8, wherein the electric energy control modules are located inside a floating bed body, and the photovoltaic assemblies are connected with charging terminals of the storage batteries sequentially through bus bars and the electric energy control modules. In the preferred embodiment: the solar charging device comprises 6 photovoltaic modules 1-5 (the number of the photovoltaic modules is selected according to actual conditions) positioned at the top of the floating bed, an electric energy control module 2-7 and a storage battery 2-8 positioned in the floating bed body 1-1, wherein the photovoltaic modules 1-5 are arranged on the upper surface of the floating bed body through supports 1-7; the solar charging device is used for providing power for the PLC module 2-1, the GPS module 2-2, the power assembly and the pH value monitoring unit 2-5 and automatically processing charging and discharging conversion work of the storage battery.

On the basis of the preferred embodiment, the power assembly comprises a hemisphere which is arranged on the lower surface of the balance connecting plate; the floating bed body 1-1 and the hemispheroid can be designed and manufactured into an integral structure; at the moment, a connecting hole is formed in the balance connecting plate, and four groups of blades 1-2 are uniformly arranged on the outer wall of the hemisphere; each group of blades is connected with a direct current motor; the PLC module 2-1 is connected with a control terminal of the direct current motor through a driving circuit module 2-3; the power output terminal of the solar charging device is respectively connected with the power supply terminals of the four direct current motors; in the preferred embodiment: the power assembly comprises a driving circuit module 2-3, a first direct current motor 2-41, a second direct current motor 2-42, a third direct current motor 2-43 and a fourth direct current motor 2-44, wherein the number of the direct current motors is 4, and 4 groups of blades are positioned below the floating bed body, and the 4 groups of blades are uniformly distributed at the edge position of a hemispheroid at the bottom of the floating bed, are distributed in central symmetry relative to the floating bed and are deep into water. The PLC module 2-1 is connected with a direct current motor through a driving circuit module 2-3, and further controls starting, stopping and rotating speeds of 4 blades.

On the basis of the preferred embodiment, the floating bed is provided with square balance connecting plates 1-3, the auxiliary floating bed keeps balance, the edges of the balance connecting plates are provided with lock holes, the lock holes are distributed in the four vertexes and the middle parts of the four edges of the connecting plates and used for being spliced with a common plant floating bed unit in a lock catch mode to form an anti-displacement ecological floating island with the floating bed as the center, and then the anti-displacement floating of the whole floating island in water is realized.

On the basis of the above preferred embodiment, the pH monitoring unit comprises a high-precision pH monitoring sensor which can penetrate underwater.

On the basis of the preferred embodiment, the indicator light is used for prompting the position of the daily floating bed; an electric energy control module 2-7 is arranged in the cavity of the floating bed body, and when the electric quantity of the storage battery is lower than a threshold value, a low-electric-quantity alarm signal is sent out; and a pH value alarm module is arranged in the PLC module, and when the pH value is out of a safety threshold value, the pH value alarm module alarms the pH threshold value.

An anti-displacement ecological floating island comprises the anti-displacement intelligent floating bed; the balance connecting plate is connected with the plant floating bed unit through the lock hole.

The utility model provides an anti displacement formula intelligence floats bed system, includes foretell anti displacement formula intelligence floats bed or ecological chinampa, and with float the bed and carry out wireless communication's host computer.

The first embodiment is as follows:

as shown in fig. 1, 2 and 3, an anti-displacement intelligent floating bed comprises a floating bed body 1-1, wherein a solar charging device is arranged on the floating bed body 1-1, and comprises a photovoltaic module 1-5, an electric energy control module 2-7 and a storage battery 2-8; a PLC module 2-1 and a GPS module 2-2 for positioning the floating bed are arranged in a cavity of the floating bed body 1-1, a driving circuit module 2-3, a first direct current motor 2-41, a second direct current motor 2-42, a third direct current motor 2-43 and a fourth direct current motor 2-44 are arranged below the floating bed body 1-1, four direct current motors are used for driving four groups of blades 1-2, a pH value monitoring unit 2-5 is further arranged below the floating bed body 1-1, and the power assembly and the pH value monitoring unit 2-5 are respectively connected with the PLC module 2-1.

The solar charging device comprises photovoltaic modules 1-5, an electric energy control module 2-7 and a storage battery 2-8, wherein the electric energy control module and the storage battery are arranged in the floating bed body and used for providing power for the PLC modules 2-1, the GPS modules 2-2, the power assembly and the pH value monitoring unit 2-6. The photovoltaic modules 1-5 are trapezoidal in shape, are totally 6, are uniformly fixed on the supports 1-7 in a surrounding shape, increase the light receiving area and reduce the shielding of the aquatic plants P on illumination.

The power assembly comprises a driving circuit module 2-3, a first direct current motor 2-41, a second direct current motor 2-42, a third direct current motor 2-43 and a fourth direct current motor 2-44, wherein the direct current motors are respectively connected with four groups of blades 1-2, and the four groups of blades 1-2 are uniformly distributed at the bottom edge of the floating bed body 1-1, are centrally and symmetrically distributed relative to the floating bed and are deeply inserted into water. The PLC module 2-1 respectively outputs PWM pulses with proper frequency to the four groups of blades through the driving circuit module 2-3 according to the instruction so as to respectively control the respective start-stop and rotation speed of the four groups of blades 1-2. Therefore, when the PLC module 2-1 judges that the floating bed has relative displacement in water by comparing the coordinate data transmitted by the GPS module 2-2, the PLC module 2-1 accurately controls different rotating speeds and starting and stopping states of each group of blades through a program, and the relative static state of the floating bed on the horizontal plane can be accurately maintained, so that the effect of displacement-resistant floating is achieved.

The edge of the floating bed body 1-1 is provided with a square balance connecting plate 1-3, and the auxiliary floating bed body keeps balance; the edge of the balance connecting plate 1-3 is provided with 12 lockholes in total, the lockholes are connected with a plurality of common plant floating bed units C1 and C2 … Cn in a lock catch connection mode through flexible connecting buckles to form an anti-displacement ecological floating island C, the floating bed body 1-1 respectively controls and adjusts the four groups of blades 1-2 through a power assembly, and therefore the whole ecological floating island C is relatively static in water, the water flow and wind wave resistant effects are achieved, anchoring is not needed, the convenience of floating island management is improved, and the aesthetic degree of appearance is improved.

The pH value monitoring unit 2-5 comprises a water quality pH value sensor, the measurement range is 0-14 pH, the measurement is the precision +/-0.02 pH, and the working temperature is 0-60 ℃.

The top end of the floating bed body 1-1 is provided with an indicator light 1-6 which is used for floating bed position indication, storage battery low-power alarm and water body pH threshold alarm, the indicator light can present 4 colors, the floating bed is displayed as green when the state is normal, the storage battery 2-8 power is displayed as red when the power is less than or equal to 15%, the water body pH value is displayed as blue when the power is less than or equal to the threshold, the storage battery is displayed as yellow when the power is greater than or equal to the threshold, when various abnormal states exist, the color gradually changing corresponding to the abnormality is alternately displayed, and the interval period of each color is 3 seconds.

The floating bed body 1-1 is also provided with a wireless communication module 2-6 communicated with the PLC module and used for communication between the floating bed and the upper computer in the figure 4.

As shown in fig. 4 and 5, the anti-displacement intelligent floating bed system includes the 1 or more ecological floating islands C and an upper computer in wireless communication with the floating bed body 1-1, in this embodiment, the upper computer is a mobile phone, and it can be understood that a PC or the like can be used as the upper computer to improve the performance of the upper computer.

The upper computer is used as a terminal for receiving data, visually displaying, setting parameters and controlling the floating bed, and has the following four functions:

(1) and (3) displaying in real time: and displaying the received position of the floating bed at the latest moment, the water body pH value data and the floating bed battery power data on a visual interface.

(2) The alarm function is that the upper computer can send out buzzing sound when the floating bed indicator lamp gives an alarm, and corresponding alarm reasons are displayed by characters in the display interface of the upper computer to prompt monitoring personnel to process in time.

(3) Setting parameters: an alarm threshold value of the water pH value and a data sampling period can be set through the upper computer so as to meet the requirement of plants planted on the ecological floating island on the water pH value.

(4) Controlling the action and the working mode of the floating bed: the floating bed or an ecological floating island formed by the floating bed is in shore or off shore by two modes of precise positioning or visual remote control of the upper computer, and the switching between the anti-displacement mode and the common mode of the floating bed can be completed by the upper computer.

The working method of the anti-displacement intelligent floating bed system comprises the following steps as shown in fig. 6:

1. the upper computer reads the positioning and electric quantity information of the floating bed: the upper computer sends a request return instruction to all the floating beds, the GPS module of each floating bed transmits the positioning data to the PLC module, and the PLC module returns the analyzed longitude, latitude, speed, azimuth angle and declination information and the percentage of the residual electric quantity of the storage battery to the upper computer through the wireless communication module through data analysis and processing;

2. and (4) visual display: the host computer shows the positioning information of all floating beds through visual map, include: longitude, latitude, speed, azimuth and the percentage of the residual electric quantity of a storage battery in the floating bed, marking the floating island with low electric quantity by the upper computer in red for the floating island with the residual electric quantity less than or equal to 15%, and giving a voice alarm to prompt a worker to process in time;

3. arranging an ecological floating island formed by splicing a floating bed with sufficient electric energy and a common plant floating bed unit at the edge of a water area;

4. setting parameters: setting an upper and lower pH value alarm threshold value and a data sampling period according to the characteristics of plants on the ecological floating island;

5. controlling the floating island to a target water area: selecting an ecological floating island to be worked through an upper computer, inputting geographic coordinates of a destination and sending data to a wireless communication module of the floating island, periodically comparing the received data with positioning information of a GPS (global positioning system) module through a PLC (programmable logic controller) module, respectively outputting PWM (pulse-width modulation) square waves with proper frequency to I, II, III and IV direct current motors through a driving circuit module according to a comparison result so as to control and adjust the running state of a power assembly, enabling the floating island to automatically reach a specified position in water, and updating a time interval period T of the positioning information through the GPS module at the moment₁0.5 second. The floating island can be manually controlled to reach a target water area by a worker through a virtual rocker in a visual interface of the upper computer, wherein the manual control has higher priority, and the automatic driving process of the floating island can be stopped by the manual control;

6. the floating island switches to anti-displacement floating mode: after the floating island reaches the designated position, a mode switching instruction is sent to the floating island through the upper computer, and the PLC module takes the longitude and the latitude of the current positioning of the GPS module as the coordinates of the original point of the PLC module and stores the coordinates. In this mode, the GPS module is in period T₂Updating longitude, latitude, speed, azimuth angle and declination information for 0.1 second and feeding back to the PLC module, wherein the PLC module uses the period T₃Comparing the positioning data, wherein T is used for realizing anti-shake comparison₃＝T₂And/5 is 0.02 second. When the displacement is judged, the PLC module accurately analyzes the relative displacement and the state of the floating bed in water, and calculates accurate PWM square waves which accord with the respective rotating speeds of the four blades, and the PWM square waves are amplified by the driving circuit module and then transmitted to the I, II, III,II, III and IV direct current motors are used for controlling different rotating speeds and starting and stopping states of the four rotary vanes, so that the ecological floating island can accurately offset relative displacement caused by wind waves and water flow, the relative static state of the whole floating island on the horizontal plane is kept, and an anti-displacement floating mode is entered; PLC then operates at period T₃Repeating the comparison process infinitely for 0.02 second until the upper computer sends a mode switching instruction to the wireless communication module of the floating island, and switching the floating island back to the common mode;

pH monitoring: after the floating island enters an anti-displacement floating mode, the PLC module starts the pH value monitoring module to continuously monitor whether the pH value of the region exceeds a threshold value and store the pH value data of each sampling point. The upper computer can display the pH value curve of the water body in a certain period, so that the workers can optimize the types of plants on the ecological floating island according to the curve range.

Through a system consisting of the upper computer and a plurality of ecological floating islands and a working method thereof, workers can monitor and control the plurality of ecological floating islands in a single water area or a plurality of water areas at the same time. By means of longitude, latitude, speed, azimuth angle and magnetic declination information of the GPS module, the DPS module can accurately analyze the state of the current floating island and calculate accurate PWM square waves which accord with respective rotating speeds of four blades, so that the ecological floating island is more adaptive to different water areas.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.