CN106954580A - A kind of aquarium intelligence control system - Google Patents

Abstract

The invention discloses an intelligent control system for an aquarium, which consists of a power supply, a liquid level sensor, a pH value detection sensor, a temperature sensor, a human-computer interaction interface, a controller, a solenoid valve, an aeration pump, a circulation pump, a heater, and a feeder Compared with the prior art, the present invention uses Siemens Logo to control solenoid valves, water pumps, heaters, aeration pumps, and lights, and feeds back information in the aquarium in real time through temperature sensors and liquid level sensors, thereby Realized intelligent control breeding system. The invention will replace the cumbersome operation of the traditional aquarium, reduce the energy of manual maintenance, and can run water pumps, heaters, aerators and other equipment more reasonably after intelligent control, and can also "automatically intermittent" during reliable work, not only It not only prolongs the service life of the equipment, but also saves more electric energy.

Description

An intelligent control system for an aquarium

technical field

The invention relates to an electric control technology for an aquarium, in particular to an intelligent control system for an aquarium.

Background technique

Nowadays, the aquarium industry is developing rapidly, and aquariums are also popular among people, but traditional aquariums generally have single functions; secondly, fish farming needs to spend a lot of time on management. For fish lovers, raising fish has become a headache.

Contents of the invention

The object of the present invention is to provide an aquarium intelligent control system in order to solve the above problems.

The present invention achieves the above object through the following technical solutions:

The invention is composed of a power supply, a liquid level sensor, a pH value detection sensor, a temperature sensor, a man-machine interface, a controller, a solenoid valve, an oxygen pump, a circulation pump, a heater, a feeder and a lighting lamp. The liquid level sensor , the signal output ends of the pH value detection sensor and the temperature sensor are connected to the signal input end of the controller, and the human-computer interaction interface is connected to the control signal transmission end of the controller through the industrial Ethernet protocol, The control output end of the controller is respectively connected with the solenoid valve, the oxygen pump, the circulation pump, the heater, the feeder and the lighting lamp.

Specifically, the controller is Siemens Logo! 0BA8 controller. The liquid level sensor is an XKC-Y25-NO type liquid level sensor. The temperature sensor is a PT100 thermal resistance sensor. The pH value detection sensor is a pH detection module and a pH detection electrode based on MSP430 single-chip microcomputer.

Further, the feeder is composed of a feed hopper, a barrel, a screw and a drive motor, the outlet of the feed hopper is connected to the side of the barrel, the screw is located in the barrel, and the One end of the screw rod is connected with the rotating shaft of the driving motor, and one end of the barrel is a discharge port.

The beneficial effects of the present invention are:

The present invention is an aquarium intelligent control system. Compared with the prior art, the present invention adopts Siemens Logo! To control solenoid valves, water pumps, heaters, oxygen pumps, lights, and feed back information in the aquarium through temperature sensors, liquid level sensors, and pH value detection sensors, thereby realizing an intelligently controlled aquaculture system. The control system is divided into automatic mode and manual mode. In the automatic mode, we can adjust different working modes through the touch screen interface according to the living habits of different fish to control the constant water temperature, the feeding amount and frequency of the feeder, water circulation and filtration, Aerator work, aquarium water change frequency and light, etc.; in manual mode, components such as circulating pumps can be started and stopped independently to meet the leisure of fish lovers or adjust aquarium components. The invention will replace the cumbersome operation of the traditional aquarium, reduce the energy of manual maintenance, and can run water pumps, heaters, aerators and other equipment more reasonably after intelligent control, and can also "automatically intermittent" during reliable work, not only It not only prolongs the service life of the equipment, but also saves more electric energy.

Description of drawings

Fig. 1 is a system structure block diagram of the present invention;

Fig. 2 is a schematic structural view of the feeder of the present invention;

Fig. 3 is a schematic diagram of the system circuit structure of the present invention;

Fig. 4 is the working mode flowchart of the present invention;

Fig. 5 is the working flow diagram of the controller of the present invention.

Among Fig. 2: 1-feed hopper, 2-barrel, 3-screw rod, 4-drive motor.

detailed description

The present invention will be further described below in conjunction with accompanying drawing:

As shown in Figure 1: the present invention consists of a power supply, a liquid level sensor, a pH value detection sensor, a temperature sensor, a man-machine interface, a controller, a solenoid valve, an aeration pump, a circulation pump, a heater, a feeder and a lighting lamp. , the signal output terminals of the liquid level sensor, the PH value detection sensor and the temperature sensor are connected to the signal input terminal of the controller, and the human-computer interaction interface is connected with the controller through the industrial Ethernet protocol The control signal transmission end is connected, and the control output end of the controller is respectively connected with the solenoid valve, the aeration pump, the circulation pump, the heater, the feeder and the lighting lamp.

All power energy is provided by 24V/5V switching power supply, Siemens core controller Logo! As the information processing center, 0BA8 uses the liquid level sensor, temperature sensor, and PH detection sensor as data collection and sends the data to the controller for processing. The human-computer interaction interface displays real-time data, and the controller judges according to the set parameters and outputs it to the execution Mechanism, executive mechanism includes circulation pump, heater, feeder, light, oxygen pump.

Specifically, the controller is Siemens Logo! 0BA8 controller. Siemens Logo! It is an economical small controller in the Siemens family. Compared with other PLCs, it is slightly smaller in size. It is easy to install, flexible and convenient to use, and is very suitable for application in small automation control systems. Logo! The main functions of 0BA8 are as follows: (1) It has a display screen, through which the system parameters can be provided to the user more intuitively. At the same time, the user can perform convenient and fast programming operations on it through the display screen, saving debugging time and improving debugging. Efficiency; (2) Integrated Ethernet communication interface, its communication function is powerful, users can configure the network very conveniently, so as to realize Logo! Communication with other Siemens PLCs or other devices; (3) A new Web Server is added to the host module. Users can configure the Web Server and then monitor it through the network, thereby improving the user's control over it. Effectively improve efficiency.

The liquid level sensor is an XKC-Y25-NO type non-contact (capacitive) liquid level sensor. The liquid level of the aquarium needs to be controlled at a certain amount, which needs to be judged by a liquid level sensor. The system only needs to know whether the liquid level has reached the required height, and does not need other analog information. XKC-Y25-NO(NPN) The type non-contact (capacitive) liquid level sensor meets the requirements. If there is no liquid close to the sensor, the sensor has a certain static capacitance due to the distribution of capacitive media on the sensor. When the liquid is close to the sensor, the parasitic capacitance of the liquid It will be coupled on the static capacitance to increase the capacitance value of the sensor, convert the changed capacitance value into a certain amount of change in the electrical signal, and then use the corresponding algorithm to judge the degree of change. When the change degree exceeds a certain When the trigger threshold is determined, it is judged that the liquid level has reached the sensing point. It can penetrate various non-metallic materials, such as plastic, glass, ceramics, etc., and its sensing distance can reach more than 12mm.

The temperature sensor is a PT100 thermal resistance sensor. PT100 can be used for temperature detection, because Logo! The controller has a dedicated PT100 input module, and the accuracy of PT100 meets the system requirements. The PT100 thermal resistance acquisition module can be connected into a two-wire system, a three-wire system, and a four-wire system. Effectively compensated, the temperature collection range can be from -200°C to +200°C, so it is very simple and convenient to use PT100.

The pH value detection sensor is a pH detection module based on MSP430 single-chip microcomputer. To detect the pH of water quality, if an industrial-grade pH detection module is used, the accuracy is high but the price is high. Therefore, the pH detection module based on the MSP430 single-chip microcomputer is used in this system, which is more reasonable and effective.

As shown in Figure 2: the feeder is composed of a feed hopper 1, a barrel 2, a screw rod 3 and a drive motor 4, the outlet of the feed hopper 1 communicates with the side of the barrel 2, the The screw rod 3 is located in the material barrel 2, one end of the screw rod 3 is connected with the rotating shaft of the driving motor 4, and one end of the material barrel 2 is a discharge port. The feeding port of the V-shaped funnel with feed is connected to the pipe, the diameter of the screw rod is slightly smaller than the diameter of the pipe, and the screw rod is driven by the geared motor, the feed in the funnel flows into the pipe, and then pushed out by the screw rod to the other end of the pipe constitute.

The I/O connection assignment of the controller is shown in Figure 3 and the table below:

The control flow diagram of the controller is shown in Figure 5.

Main functions of the system:

(1) Aquarium water temperature control and detection: When raising tropical fish and rare fish species, they have high requirements for water temperature, and are prone to die due to the decline in immunity caused by changes in ambient temperature. At this time, users need to keep the water temperature constant. After setting parameters for the actual required water temperature through the human-computer interaction function, turn on the heater until the temperature reaches the setting requirement.

(2) Automatic internal circulation filtration: The living environment of fish needs to be clean and pollution-free, but the input of food and excrement will easily lead to acidification of the environment and cause discomfort to fish, so the internal environment needs to be adjusted. The aquaculture environment of this system is designed as an upper filter method. The bottom dirty particles are pumped to the filter tank through the circulation pump, and then the filtered water flows back into the aquarium from the filter tank. This filter method can make the air and water have a greater interaction. The contact area makes the oxygen in the air easier to integrate into the water. The user can set the operating frequency of the circulating pump through the human-computer interaction function.

(3) Automatic feeding: Digestive systems of different types of fish are different. From the perspective of fish digestive tract, fish are divided into fish with stomach and fish without stomach. Different, the user needs to set the frequency and amount of automatic feeding in the human-computer interaction function according to the actual situation.

(4) Intelligent water change: The time to change the water for the aquarium is generally around 7:00 am to 10:00 am, or around 3:00 pm to 4:00 pm. The current PH concentration value is detected by the PH detection module. If it does not meet the user's settings The PH concentration range will automatically enter the pre-water change program and judge the current time. If it meets the water change, it will continue to test the water quality after the water change is completed. If it does not meet the setting requirements for many times, it will alarm and notify.

(5) Automatic lighting: When raising fish, the aquatic plants in the tank also need to undergo photosynthesis, and the user can set the lighting period through the human-computer interaction function.

(6) Automatic oxygenation: Oxygen is essential for fish. The frequency of oxygenation can be set through the human-computer interaction function to automatically work intermittently, which can not only achieve the effect of oxygenation, but also save power and prolong the service life of the oxygenation pump.

2. Human-computer interaction: There are two different human-computer interaction methods. The first is the touch screen method. The user can know the water temperature and PH value information in the aquarium through the touch screen, and set parameters on the control interface according to the actual needs of the user. Similar, but it can be set and monitored wirelessly away from the site. Compared with the touch screen, it will be more convenient for users. In the mobile app, the temperature and pH value changes can be recorded through curves to grasp the living habits of farmed fish.

As shown in Figure 4: the system of the present invention is divided into automatic mode and manual mode. The start and stop of the automatic mode is based on whether the liquid level meets the specified position. Two liquid level sensors are used to judge the height respectively. After the power is turned on Detect the high liquid level. If the liquid level is not too high, open the water inlet valve. When the liquid level is not too low, it will automatically feed according to the parameter settings; when the liquid level is not too high, it will feed according to the set parameters. Carry out regular oxygenation and circulating water filtration. Water filtration is to pump the water at the bottom of the tank into the upper filter tank. The filter tank is divided into three. The first tank uses sponge to filter particulate matter, and the second tank is used to release biological The ring and activated carbon are used for sterilization and detoxification; judge whether the temperature meets the setting requirements, if the temperature is lower than the setting temperature, the heater will be turned on, and the heating will be stopped after the setting temperature is exceeded. At this time, the circulating pump will be forced to open for water flow and heat dissipation; Whether the current PH value meets the setting requirements. If the PH value exceeds the range, it will automatically open the water outlet valve for a certain period of time, then open the water inlet valve and run for a while at the same time, and finally close the water outlet valve and open the water inlet valve until it reaches the high level; if one day After two water changes, a warning will be issued to inform the user that it may be a problem with the water quality itself; the user can set the daily light start and stop time period on the human-machine interface.

When working in manual mode, all working actuators will be disconnected, and each actuator can be controlled individually on the manual control interface; while the touch screen and Web Server functions as monitoring and control terminals, all control requirements are issued from here , all actuators and sensor data information can be displayed.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above. Those skilled in the industry should understand that the present invention is not limited by the above-mentioned embodiments. What are described in the above-mentioned embodiments and the description only illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have Variations and improvements are possible, which fall within the scope of the claimed invention. The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. An aquarium intelligent control system is characterized in that: by power supply, liquid level sensor, pH value detection sensor, temperature sensor, man-machine interface, controller, electromagnetic valve, aeration pump, circulating pump, heater, The food feeder and lighting lamps, the signal output terminals of the liquid level sensor, the pH value detection sensor and the temperature sensor are connected to the signal input terminal of the controller, and the human-computer interaction interface is connected through the industrial Ethernet protocol. It is connected with the control signal transmission end of the controller, and the control output end of the controller is respectively connected with the solenoid valve, the aeration pump, the circulation pump, the heater, the feeder and the Lighting connections. 2. The aquarium intelligent control system according to claim 1, characterized in that: the controller is Siemens Logo! 0BA8 controller. 3. The aquarium intelligent control system according to claim 1, wherein the liquid level sensor is an XKC-Y25-NO type liquid level sensor. 4. The aquarium intelligent control system according to claim 1, characterized in that: the temperature sensor is a PT100 thermal resistance sensor. 5. The aquarium intelligent control system according to claim 1, characterized in that: the pH value detection sensor is a pH detection module and a pH detection electrode based on MSP430 single-chip microcomputer. 6. The aquarium intelligent control system according to claim 1, characterized in that: the feeder is composed of a feed hopper, a barrel, a screw rod and a drive motor, and the outlet of the feed hopper is connected to the feed barrel. The side of the screw rod is connected to each other, the screw rod is located in the barrel, one end of the screw rod is connected to the rotating shaft of the drive motor, and one end of the barrel is the discharge port.