Rice-fish system

Abstract

The utility model provides a rice-fish system. The rice-fish system comprises a detection device, a control device, a driving device and a water circulation device, the water circulation device comprises a water supply pipeline extending outwards from the first fish temporary rearing area, a water supply valve arranged on the water supply pipeline, a water drainage pipeline extending outwards from the second fish temporary rearing area and a water drainage valve arranged on the water drainage pipeline, and the first fish temporary rearing area and the second fish temporary rearing area are oppositely arranged on the two sides of the planting area and communicated with the fish ditch in the planting area; the driving device comprises aeration equipment, a water feeding pump and a water draining pump; the control device controls the driving device and the circulating device according to the comparison of the measured water index value and the limit value, so that the water index in the planting area reaches the target value. According to the rice and fish system, the fluctuation of water in the planting area is enhanced by introducing the paired fish temporary rearing areas, energy for driving water circulation is saved, meanwhile, the water circulation device and the control device are coordinated and matched to control the water index in the planting area to be maintained at a normal value, fine management is facilitated, and practicability is high.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of rice-fish symbiosis, and particularly relates to a rice-fish system. BACKGROUND

[0002] Rice-fish culture mainly uses rice, and takes into account fish culture. The original rice field ecology is transformed in a more favorable direction by using the artificially created rice-fish symbiotic relationship. Fish products can be obtained, and fish can eat pests and weeds in the rice field, excrete manure, and turn over the soil to promote the decomposition of fertilizer, thus creating good conditions for the growth of rice. However, the traditional rice-fish culture system cannot achieve fine management of the planting area, and most of them need manual participation. In addition to increasing labor costs, it is also difficult to accurately grasp the growth needs of rice and the living habits of fish, which can easily lead to a situation of large input but unanticipated output. In addition, the existing rice-fish culture system mainly relies on a driving device to provide the power for water circulation, which increases the use cost. CONTENT OF THE UTILITY MODEL

[0003] One of the technical problems to be solved by the present disclosure is that the current rice-fish culture system cannot be fine managed and relies solely on a water pump to provide power. Therefore, a rice-fish system that can reduce costs and achieve fine management is proposed.

[0004] To solve the above technical problems, the present disclosure provides a rice-fish system, which comprises a detection device, a control device, a driving device, and a water circulation device. The water circulation device comprises a water supply pipeline extending outward from a first temporary fish breeding area, a water supply valve arranged on the water supply pipeline, a drainage pipeline extending outward from a second temporary fish breeding area, and a drainage valve arranged on the drainage pipeline. The first temporary fish breeding area and the second temporary fish breeding area are arranged on opposite sides of the planting area and are in communication with the fish ditch in the planting area. The driving device comprises an aeration equipment, a water supply pump acting on the water supply pipeline, and a drainage pump acting on the drainage pipeline. The detection device is used to obtain and send the measured value of the water index in the planting area to the control device. The control device controls the opening and closing of the water supply pump, the aeration equipment, and the drainage pump and / or the opening degree of the water supply valve and the drainage valve according to the comparison between the measured value and the limit value, so that the water index in the planting area reaches the target value.

[0005] In some embodiments, one end of the water supply pipeline away from the first temporary fish breeding area is connected to one side of a water storage pool, and one end of the drainage pipeline away from the second temporary fish breeding area is connected to the other side of the water storage pool. The aeration equipment is fixed in the water storage pool.

[0006] In some embodiments, the first temporary fish breeding area and the second temporary fish breeding area exist in pairs, and at least one pair of the first temporary fish breeding area and the second temporary fish breeding area exists.

[0007] In some embodiments, when the water index is only water level, the limit value includes a low water level and a high water level, and the target value is between the low water level and the high water level; when the measured water level is less than the low water level, the water pump is operated and the drainage pump is closed; when the measured water level exceeds the high water level, the drainage pump is operated and the water pump is closed; when the measured water level reaches the target value, the drainage pump and the water pump are closed.

[0008] In some embodiments, when the water index is only oxygen content, the limit value includes a low oxygen content and a high oxygen content, and the target value is between the low oxygen content and the high oxygen content; when the measured oxygen content is less than the low oxygen content, the water pump, the drainage pump, and the aeration equipment are operated; when the measured oxygen content is the target value, the water pump, the drainage pump, and the aeration equipment are operated, and the opening of the water valve and the drainage valve is reduced; when the measured oxygen content exceeds the high oxygen content, the water pump, the drainage pump, and the aeration equipment are closed.

[0009] In some embodiments, when the water index is water level and oxygen content, the limit value includes an oxygen content limit value and a water level limit value, and the target value includes an oxygen content target value and a water level target value; the water pump and the drainage pump are always operated, the opening and closing of the aeration equipment, and the opening difference between the water valve and the drainage valve are controlled to achieve the oxygen content target value, and the opening difference between the water valve and the drainage valve is controlled to achieve the water level target value.

[0010] In some embodiments, the oxygen content limit value includes a low oxygen content and a high oxygen content, and the oxygen content target value is between the low oxygen content and the high oxygen content; the water level limit value includes a low water level and a high water level, and the water level target value is between the low water level and the high water level; when the measured oxygen content is less than the low oxygen content, the aeration equipment is operated; when the measured oxygen content exceeds the high oxygen content, the aeration equipment is closed; when the measured oxygen content is the oxygen content target value, the aeration equipment is operated, and the opening of the water valve and the drainage valve is reduced; wherein, when the measured water level is less than the low water level, the opening of the water valve is greater than the opening of the drainage valve; when the measured water level exceeds the high water level, the opening of the water valve is less than the opening of the drainage valve; when the measured water level is the water level target value, the opening of the water valve is the same as the opening of the drainage valve.

[0011] In some embodiments, the rice-fish system further comprises a sewage treatment device, the sewage treatment device comprising a first sewage pipe extending outward from the first fish temporary breeding area, a second sewage pipe extending outward from the second fish temporary breeding area, a third sewage pipe merging the ends of the first sewage pipe and the second sewage pipe and extending to the water storage pool, a sewage treatment equipment located in the third sewage pipe, a first sewage valve provided on the first sewage pipe, and a second sewage valve provided on the second sewage pipe; at this time, the driving device further comprises a sewage pump fixed to the third sewage pipe.

[0012] In some embodiments, when the water index is water quality, the control device controls the opening and closing of the sewage pump and / or the opening degree of the first and second sewage valves according to the comparison between the limit value and the measured value of the water quality, so that the water quality in the planting area reaches the target value.

[0013] In some embodiments, when the water index is water quality, the target value is lower than the limit value; when the measured value of the water quality is not less than the limit value of the water quality, the sewage pump and the sewage treatment device are operated, and the first and second sewage valves are opened; when the measured value of the water quality is the target value, the sewage pump and the sewage treatment device are closed, and the first and second sewage valves are closed.

[0014] Through the above technical solutions, the rice-fish system provided by the present disclosure sets a water circulation module to communicate the planting area with the water storage pool to form a water circulation channel, and sets a pair of first and second fish temporary breeding areas as the cut-in points of the water circulation module and the planting area. The first and second fish temporary breeding areas are oppositely arranged on both sides of the planting area. On the one hand, the irregular movement of fish in the fish temporary breeding area strengthens the phenomenon of uneven water flow rate and unspecified water flow direction in the water circulation channel, so that water circulation can be achieved without starting the driving device under the condition that the water index is normal, thereby reducing the energy consumption of the driving device and lowering the cost. On the other hand, the relative position characteristics of the fish temporary breeding area are utilized to easily form convection when there is a flow rate difference between the water inlet channel and the water outlet channel, thereby increasing the fluctuation of water flow and being conducive to reducing the energy consumption of the driving device. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, a brief introduction will be given below to the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and other drawings can also be obtained by those skilled in the art without creative labor.

[0016] Figure 1 is a control structure schematic diagram of the rice-fish system disclosed by the embodiments of the present disclosure;

[0017] Figure 2 is Figure 1 a connection structure schematic diagram of the rice-fish system and the planting area;

[0018] Figure 3 is Figure 1 a control structure schematic diagram after adding a sewage treatment device;

[0019] Figure 4 is Figure 3 a connection structure schematic diagram of the rice-fish system and the planting area.

[0020] Explanation of reference signs:

[0021] 1, rice field; 2, fish ditch; 3, control device; 4, drainage pump; 5, first cleaning valve; 6, drainage valve; 7, second cleaning valve; 8, sewage pump; 9, sewage treatment device; 10, water storage tank; 11, aeration device; 12, detection device; 13, water supply valve; 14, water supply pump; 15, first fish temporary holding area; 16, second fish temporary holding area; 17, water supply pipeline; 18, drainage pipeline; 19, first cleaning pipeline; 20, second cleaning pipeline; 21, third cleaning pipeline; 22, driving device; 23, water circulation device; 24, sewage treatment device. DETAILED DESCRIPTION

[0022] The embodiments of the present disclosure are further described below in conjunction with the drawings and examples. The detailed description and drawings of the following examples are used to exemplarily illustrate the principles of the present disclosure, but cannot be used to limit the scope of the present disclosure, and the present disclosure can be implemented in many different forms, not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0023] The present disclosure provides these embodiments in order to make the present disclosure thorough and complete, and fully express the scope of the present disclosure to those skilled in the art. It should be noted that: unless otherwise specified, the relative arrangement of components and steps, the composition of materials, numerical expressions and values set forth in these embodiments should be interpreted as merely exemplary, and not as a limitation.

[0024] It should be noted that, in the description of the present disclosure, unless otherwise specified, the meaning of "a plurality of" is greater than or equal to two; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer" and the like is only for the purpose of facilitating the description of the present disclosure and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present disclosure. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0025] In addition, "first", "second", and similar words used in the present disclosure do not indicate any order, number, or importance, but are only used to distinguish different parts. "Vertical" is not strictly vertical, but within the allowable range of error. "Parallel" is not strictly parallel, but within the allowable range of error. "Include" or "contain" and similar words mean that the elements before the word cover the elements listed after the word, and do not exclude the possibility of also covering other elements.

[0026] It should be noted that in the description of the present disclosure, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection, it can be direct connection, or indirect connection through intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances. When it is described that a specific device is located between the first device and the second device, there can be or can not be an intermediate device between the specific device and the first device or the second device.

[0027] All the terms used in the present disclosure have the same meaning as understood by those skilled in the art to which the present disclosure belongs, unless otherwise specifically defined. It should also be understood that the terms defined in general dictionaries should be interpreted to have meanings consistent with their meanings in the context of the relevant art, and should not be interpreted in an idealized or excessively formalized sense, unless otherwise defined explicitly herein.

[0028] The technologies, methods and devices known to those skilled in the relevant art can not be discussed in detail, but in appropriate cases, the technologies, methods and devices should be considered as part of the specification.

[0029] It should be noted that the control device 3 mentioned in the present case can be realized by a simple logic circuit or a PLC circuit, for example, the basic function realized by it is only to compare the measured value of the water index with a certain target value, and to output according to the corresponding comparison result to control the water pump or the valve, which can be realized by means of a comparator.

[0030] Please refer to Figure 1 The utility model discloses a kind of control structure of rice fish system, including detection device 12, control device 3 (such as control circuit), driving device 22, water circulation device 23. Figure 2Fig. 1 is a schematic diagram of the integration structure of the rice-fish system and the planting area. As can be seen, in the planting area matched with the rice-fish system, a pair of first fish temporary breeding area 15 and second fish temporary breeding area 16 are arranged, and there are at least one pair of first fish temporary breeding area 15 and second fish temporary breeding area 16. The first fish temporary breeding area 15 and the second fish temporary breeding area 16 are oppositely arranged on both sides of the planting area and are in communication with the fish ditch 2 in the planting area. The fish ditch 2 is used for breeding aquatic organisms such as fish, and the fish ditch 2 is excavated in multiple in the planting area and is in communication with each other (not limited to a fixed direction), and the planting area is used for planting aquatic crops such as rice, including a plurality of paddy fields 1. It can be known through slight analysis that the water in the fish ditch 2, the paddy field 1 and the fish temporary breeding area is in communication with each other, and on this basis, the rice-fish system is used to communicate the fish temporary breeding area with the water storage tank 10, at this time, the communication between the water storage tank 10, the fish ditch 2, the paddy field 1 and the fish temporary breeding area is formed, and when the driving device 22 drives the water circulation to flow, the irregular movement of the fish in the fish temporary breeding area makes the water in the fish temporary breeding area in a flowing state, which to some extent accelerates the original water circulation speed; meanwhile, the movement of the fish in different directions makes the water flow direction in the fish temporary breeding area different, which to some extent accelerates the water flow speed between the fish temporary breeding area and all the fish ditches 2, so that the communication effect is more prominent. In the rice-fish system, the water circulation device 23 includes the water supply pipeline 17 extending outward from the first fish temporary breeding area 15, the water supply valve 13 arranged on the water supply pipeline 17, the drainage pipeline 18 extending outward from the second fish temporary breeding area 16, and the drainage valve 6 arranged on the drainage pipeline 18. The end of the water supply pipeline 17 away from the first fish temporary breeding area 15 is in communication with one side of the water storage tank 10, and the end of the drainage pipeline 18 away from the second fish temporary breeding area 16 is in communication with the other side of the water storage tank 10. The driving device 22 includes the aeration equipment 11, the water supply pump 14 acting on the water supply pipeline 17, and the drainage pump 4 acting on the drainage pipeline 18, wherein the water supply pump 14 is fixed on the water supply pipeline 17; the drainage pump 4 is fixed on the drainage pipeline 18; and the aeration equipment 11 is fixed in the water storage tank 10 to facilitate the subsequent control process of conveying oxygen. The water storage tank 10-drainage pipeline 18-second fish temporary breeding area 16-planting area-first fish temporary breeding area 15-water supply pipeline 17-water storage tank 10 forms a complete and smooth water circulation channel, and the water index in the water circulation channel is the same everywhere. On this basis, the detection device 12 obtains and sends the measured value of the water index in the planting area to the control device 3. The detection device 12 can include a camera to monitor the growth state of rice and diseases and pests in real time, so that relevant prevention and treatment can be carried out in time.After that, according to the set program or manually input the limit value and target value of the measured value to the control device 3, the limit value is the threshold value or limit value set according to the measured value of the water index, which corresponds to the various actual states of the water in the planting area, and the target value is the normal range value or fixed value of the measured value, which is used to determine the normal state of the various actual states of the water in the planting area, so that the control device 3 takes corresponding control measures to correct the water index, improves the accuracy and practicability of the control, and reduces the power, labor and time cost generated by the redundant control process. After that, the control device 3 controls the opening and closing of the water pump 14, the aeration equipment 11 and the drainage pump 4, and / or the opening of the water valve 13 and the drainage valve 6, so that the water index in the planting area reaches the target value.

[0031] Based on the above process, in order to enhance the practicability, accuracy and reliability of the rice-fish process, the water index is divided into multiple cases with water level, oxygen content and water quality as subclasses, and the structure and control process of the above rice-fish system are changed accordingly. Of course, the water index can also include other subclasses. The multiple cases divided by water level, oxygen content and water quality are described in detail below.

[0032] When the water index has only one subclass of water level, the main situation is that the water content in the rice field 1 and / or the fish ditch 2 is too much and too little, which leads to the decrease of the yield and quality of rice and fish, etc. For example, excessive rainfall exceeds the existing soil permeability, so that a large amount of water is stored in the rice field 1 and the fish ditch 2, which easily leads to the rotting of rice roots and the death of the whole plant, reduces the taste of rice and the yield per mu of rice. In the rice-fish system disclosed by the present application, when the water index is only water level, the preset limit value includes low water level and high water level, and the preset target value is between the low water level and the high water level. The detection device 12 includes a water level detection device, which obtains and sends the measured value of the water level in the planting area to the control device 3 in real time. The control device 3 controls the opening and closing of the water pump 14 and the drainage pump 4 according to the comparison of the water level measured value with the high water level and the low water level, so that the water level in the planting area reaches the target value. Specifically, when the control module identifies that the water level measured value is lower than the low water level, it means that the water level in the planting area is too low, at this time the water pump 14 is running and the drainage pump 4 is closed, so that the water supply is greater than the drainage and the water level in the planting area is increased; when the water level measured value exceeds the high water level, it means that the water level in the planting area is too high, the drainage pump 4 is running and the water pump 14 is closed, so that the drainage is greater than the water supply and the water level in the planting area is decreased; until the water level measured value reaches the target value, it means that the water level in the planting area is appropriate, the drainage pump 4 and the water pump 14 are closed, and the energy consumption is reduced.

[0033] When the water index is only one sub-class of oxygen content, the main situation is that the energy waste caused by the oxygen content being too high in the rice field 1 or fish ditch 2 in the planting area and the fish death and rice yield reduction caused by the oxygen content being too low. In the rice-fish system disclosed by the utility model, when the water index is only oxygen content, the preset limit value includes the low oxygen content value and the high oxygen content value, and the preset target value is between the low oxygen content value and the high oxygen content value. The detection device 12 includes an oxygen content detection device, which obtains and sends the measured value of the oxygen content of the water in the planting area to the control device 3 in real time, and the control device 3 controls the opening and closing of the aeration device 11, the water pump 14 and the drainage pump 4 and the opening degree of the drainage valve 6 and the water supply valve 13 according to the comparison of the measured value of the oxygen content and the high oxygen content value and the low oxygen content value, so that the oxygen content in the planting area reaches the target value. Specifically, when the measured value of the oxygen content is less than the low oxygen content value, it means that the oxygen content of the water in the planting area is too low, at this time, the water pump 14, the drainage pump 4 and the aeration device 11 are operated, the water pump 14 and the drainage pump 4 are operated at the same time to improve the flow rate of the water in the water circulation channel, and a small amount of oxygen is brought in the flowing process, and the operation of the aeration device 11 greatly increases the oxygen content in the water flowing process; when the measured value of the oxygen content exceeds the high oxygen content value, it means that the oxygen content of the water in the planting area is too high, the water pump 14, the drainage pump 4 and the aeration device 11 are closed, at this time, the oxygen in the planting area is sufficient, and it is not necessary to inject oxygen into the water circulation channel, and the closing of the device reduces the cost of energy consumption at the right time; when the measured value of the oxygen content is the target value, the water pump 14, the drainage pump 4 and the aeration device 11 are operated, and the opening degree of the drainage valve 6 and the water supply valve 13 is reduced, which means that the oxygen in the planting area is suitable, at this time, the aeration device 11 is still used to transport oxygen, the water pump 14 and the drainage pump 4 are used to keep the water at a certain flow rate, but at this time, the flow rate is not high, so the opening degree of the drainage valve 6 and the water supply valve 13 is reduced, and the small flow circulation is carried out.

[0034] When the water index includes both the water level and the oxygen content, the preset limit value includes the oxygen content limit value and the water level limit value, and the preset target value includes the oxygen content target value and the water level target value. The oxygen content limit value includes an oxygen content low value and an oxygen content high value, and the oxygen content target value is between the oxygen content low value and the oxygen content high value. The water level limit value includes a water level low value and a water level high value, and the water level target value is between the water level low value and the water level high value. When only one of the two sub-classes needs to be adjusted in the same time period, the above process can still be used for separate adjustment. When both sub-classes need to be adjusted in the same time period, the following control process is used. In the rice-fish system, the detection device 12 includes both a water level detection device and an oxygen content detection device, and real-time measurement values of the oxygen content and the water level in the planting area are obtained and sent to the control device 3. The control device 3 keeps the water pump 14 and the drainage pump 4 running, and then controls the opening and closing of the aeration device 11 and the opening degree of the water supply valve 13 and the drainage valve 6 to reach the oxygen content target value, and controls the difference between the opening degrees of the water supply valve 13 and the drainage valve 6 to reach the water level target value. Specifically, in the control device 3, the water pump 14 and the drainage pump 4 are kept running throughout the process. The two strategies for controlling the oxygen content and the water level are simultaneously executed. The strategy for controlling the oxygen content is as follows: when the measured oxygen content is lower than the oxygen content low value, the aeration device 11 is turned on; when the measured oxygen content exceeds the oxygen content high value, the aeration device 11 is turned off; and when the measured oxygen content is the oxygen content target value, the aeration device 11 is turned on, and the opening degrees of the drainage valve 6 and the water supply valve 13 are reduced. At the same time, regardless of the relationship between the measured oxygen content and the oxygen content limit value, the strategy for controlling the water level is as follows: when the measured water level is less than the water level low value, the opening degree of the water supply valve 13 is greater than that of the drainage valve 6; when the measured water level exceeds the water level high value, the opening degree of the water supply valve 13 is less than that of the drainage valve 6; and when the measured water level is the water level target value, the opening degrees of the water supply valve 13 and the drainage valve 6 are the same. For example, when the measured oxygen content is the oxygen content target value and the measured water level is less than the water level low value, the aeration device 11 is turned on, the opening degrees of the drainage valve 6 and the water supply valve 13 are reduced, and the opening degree of the water supply valve 13 is greater than that of the drainage valve 6. This control process facilitates simultaneous monitoring and adjustment of the water level and the oxygen content, improves the function of the rice-fish system, facilitates fine management, and has higher practicality.

[0035] When the water index only includes the water quality, the main situation is that the water quality is too poor to affect the growth environment of rice and fish, thereby causing unguaranteed food safety and unrepresented economic benefits. In order to solve the influence caused by the unqualified water quality during the growth of fish and rice, the sewage treatment device 24 is additionally added in the rice-fish system. Please refer to Figure 3 Another control structure of a rice-fish system is disclosed in the utility model, which comprises a detection device 12, a control device 3 (such as a control circuit), a driving device 22, a water circulation device 23, and a sewage treatment device 24. Figure 4Fig. 2 is a schematic diagram of the integrated structure of the rice-fish system and the planting area. As can be seen, the sewage treatment device 24 comprises a first sewage pipe 19 extending outward from the first fish temporary breeding area 15, a second sewage pipe 20 extending outward from the second fish temporary breeding area 16, a third sewage pipe 21 merging the ends of the first sewage pipe 19 and the second sewage pipe 20 and extending to the water storage pool 10, a sewage treatment equipment 9 located at the third sewage pipe 21, a first sewage valve 5 arranged on the first sewage pipe 19, and a second sewage valve 7 arranged on the second sewage pipe 20, and a circulating sewage channel of the water storage pool 10-the third sewage pipe 21-the first sewage pipe 19-the first fish temporary breeding area 15-the planting area-the second fish temporary breeding area 16-the second sewage pipe 20-the third sewage pipe 21-the water storage pool 10 is formed. Correspondingly, the driving device 22 further comprises a sewage pump 8 fixed to the third sewage pipe 21. The third sewage pipe 21 is in communication with the first sewage pipe 19 and the second sewage pipe 20 at the same time, which saves the pipeline material. The sewage treatment equipment 9 and the sewage pump 8 are arranged on the third sewage pipe 21, which on the one hand reduces the cost and facilitates the final sewage treatment, and on the other hand improves the treatment efficiency. The water quality is a comprehensive index of the turbidity, chroma, odor and temperature of water, so the water quality detection equipment is added in the detection device 12. The detection device 12 obtains and sends the measured value of the water quality in the planting area to the control device 3. The control device 3 controls the opening and closing of the sewage pump 8 and / or the opening degree of the first sewage valve 5 and the second sewage valve 7 according to the comparison between the limit value and the measured value of the water quality, so that the water quality in the planting area reaches the target value. Specifically, the preset target value is lower than the preset limit value; when the measured value of the water quality is greater than the limit value of the water quality, it indicates that the water quality in the planting area is unqualified, at this time the sewage pump 8 and the sewage treatment equipment 9 are operated, the first sewage valve 5 and the second sewage valve 7 are opened, and the flow rate of the water in the circulating sewage channel is increased under the driving of the sewage pump 8 and the cooperation of the first sewage valve 5 and the second sewage valve 7, which is convenient for the sewage in the third sewage pipe 21 to be treated by the sewage treatment equipment 9 together, and the treated water is discharged into the water storage pool 10 after the water quality is qualified; when the measured value of the water quality is the target value, it indicates that the water quality in the planting area is unqualified, at this time the sewage pump 8, the sewage treatment equipment 9, the first sewage valve 5 and the second sewage valve 7 are closed.

[0036] It should be noted that the circulating sewage channel and the water circulation channel exist and work independently of each other. The two can be connected at the fish temporary breeding area, and the sewage treatment device 24 is started to control the water quality of the circulating sewage channel, and the water circulation device 23 is started to control the water level and / or oxygen content in the water circulation channel. A blocking valve can also be provided at the fish temporary breeding area, and the sewage treatment device 24 is the first priority, when the sewage treatment device 24 is started, the sewage treatment is preferentially carried out, at this time the water circulation channel is closed; and when the sewage treatment device 24 is closed, at this time the water quality meets the standard, the water circulation channel is opened, and the water circulation device 23 is allowed to start. Therefore, when the water index includes water level, water quality and oxygen content, more detailed control can also be carried out according to the above process. The present application solves the problem that it is difficult to accurately identify different growth periods and different growth states of rice fish relying on human experience, and timely takes targeted control measures according to the changes of water level, oxygen content and water quality, and is friendly to rice fish; and the whole process is automatically realized, which saves the labor cost, and the relative fish temporary breeding area enables the water / sewage circulation pattern, which saves the cost of control driving circulation.

[0037] So far, the embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein according to the above description.

[0038] Although some specific embodiments of the present disclosure have been described in detail through examples, those skilled in the art should understand that the above examples are only for illustration, not for limiting the scope of the present disclosure. Those skilled in the art should understand that the above embodiments can be modified or some technical features can be replaced equivalently without departing from the scope and spirit of the present disclosure. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way.

Claims

1. A rice-fish system, characterized by, The system comprises a detection device, a control device, a driving device, and a water circulation device. The water circulation device comprises a water supply pipe extending from the first temporary fish breeding area, a water supply valve arranged on the water supply pipe, a water discharge pipe extending from the second temporary fish breeding area, and a water discharge valve arranged on the water discharge pipe. The driving device comprises an aeration device, a water supply pump acting on the water supply pipe, and a water discharge pump acting on the water discharge pipe.

2. The rice-fish system according to claim 1, wherein The detection device is used to acquire and send the measured value of the water index in the planting area to the control device.

3. The rice-fish system according to claim 1, wherein The water supply pipe is connected to one side of the water storage pool away from the first temporary fish breeding area, and the water discharge pipe is connected to the other side of the water storage pool away from the second temporary fish breeding area.

4. The rice-fish system of claim 1, wherein, The first temporary fish breeding area and the second temporary fish breeding area exist in pairs, and at least one pair of the first temporary fish breeding area and the second temporary fish breeding area exists.

5. The rice-fish system of claim 1, wherein, When the water index is only the water level, the limit value includes a low water level and a high water level, and the target value is between the low water level and the high water level. When the water index is only the oxygen content, the limit value includes a low oxygen content and a high oxygen content, and the target value is between the low oxygen content and the high oxygen content.

6. The rice-fish system of claim 1, wherein, When the water index is the water level and the oxygen content, the limit value includes the oxygen content limit value and the water level limit value, and the target value includes the oxygen content target value and the water level target value. The water supply pump and the water discharge pump always run, and the opening and closing of the aeration device and the opening degree difference between the water supply valve and the water discharge valve are controlled to achieve the oxygen content target value and the water level target value.

7. The rice-fish system according to claim 6, wherein The oxygen content limit value includes a low oxygen content and a high oxygen content, and the oxygen content target value is between the low oxygen content and the high oxygen content. The water level limit value includes a low water level and a high water level, and the water level target value is between the low water level and the high water level. When the measured value of the oxygen content is less than the low oxygen content, the aeration device runs; when the measured value of the oxygen content is greater than the high oxygen content, the aeration device is closed; and when the measured value of the oxygen content is the oxygen content target value, the aeration device runs while reducing the opening degrees of the water discharge valve and the water supply valve. When the water level measured value is less than the low water level value, the water supply valve opening is greater than the water discharge valve opening; when the water level measured value is greater than the high water level value, the water supply valve opening is less than the water discharge valve opening; and when the water level measured value is the target water level value, the water supply valve opening is the same as the water discharge valve opening.

8. The rice-fish system of claim 1, wherein, The rice-fish system further comprises a sewage treatment device, the sewage treatment device comprising a first sewage pipe extending outwards from the first fish temporary breeding area, a second sewage pipe extending outwards from the second fish temporary breeding area, a third sewage pipe merging the first sewage pipe and the second sewage pipe at the end and extending to the water storage pool, a sewage treatment equipment located in the third sewage pipe, a first sewage valve arranged on the first sewage pipe, and a second sewage valve arranged on the second sewage pipe; at this time, the driving device further comprises a sewage pump fixed to the third sewage pipe.

9. The rice-fish system according to claim 8, wherein When the water index is water quality, the control device controls the opening and closing of the sewage pump and / or the opening of the first and second sewage valves according to the comparison between the limit value and the measured value of the water quality, so that the water quality in the planting area reaches the target value.

10. The rice-fish system according to claim 9, wherein When the water index is water quality, the target value is lower than the limit value; when the measured value of the water quality is not less than the limit value of the water quality, the sewage pump and the sewage treatment equipment are operated, and the first and second sewage valves are opened; when the measured value of the water quality is the target value, the sewage pump and the sewage treatment equipment are closed, and the first and second sewage valves are closed.

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