CN212212375U - Intelligent aquarium - Google Patents
Intelligent aquarium Download PDFInfo
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- CN212212375U CN212212375U CN201921045522.8U CN201921045522U CN212212375U CN 212212375 U CN212212375 U CN 212212375U CN 201921045522 U CN201921045522 U CN 201921045522U CN 212212375 U CN212212375 U CN 212212375U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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Abstract
The utility model provides an intelligence aquarium, including the aquarium body with be used for controlling the control system of aquarium body, control system includes main control chip, temperature sensor, quality of water turbidity sensor and level sensor, and temperature sensor, quality of water turbidity sensor and level sensor send temperature signal, turbidity degree signal and liquid level signal to main control chip respectively, still are equipped with the water circulating pump, trades water pump, oxygenation pump, light, throws feeder and heating rod by main control chip control on the aquarium body. The aquarium can be managed in different places, and the problem that the aquarium cannot be maintained due to going out is avoided. The intelligent automatic control system also releases a great deal of management energy, so that the ornamental fish culture becomes easy and pleasant.
Description
Technical Field
The utility model relates to an aquarium field, especially an intelligent aquarium.
Background
Fish aquariums are common containers for raising fishes in the public families and are ornaments in the families. The colorful ornamental fishes and the organic aquatic plants in the aquarium are also provided with sand and stones with various shapes, and the combination of the dynamic and static conditions is pleasing to the eyes and is the first choice for family decoration. Although the aquarium is beautiful, the maintenance of the aquarium is a big problem, and various ornamental fishes and aquatic plants have strict requirements on water temperature, water quality, feeding, light, oxygen content and the like.
Aiming at the maintenance problem of the aquarium, some devices which can control water temperature, supply oxygen and feed, such as a heating rod with a temperature control function, a feeder which can feed at regular time and an oxygenation pump, are also continuously arranged on the market. However, these devices only achieve a single control function, and the operation of the devices needs to be individually installed and set manually one by one, so that the operation is complicated, and a complete and convenient aquarium control system is not provided. The remote control and intelligent management cannot be realized, and the water circulation cannot be automatically opened and closed and the water cannot be automatically changed according to the change of the water quality; the water temperature cannot be conveniently adjusted; the oxygen increasing pump and the timing switch lamp can not be switched on and off in a timing mode, and waste of electricity is caused. In the process of fish culture, people in the aquarium are not fed and cared for the reason that the owner is on business or on a tour. An aquarium placed in a bedroom at night can affect the rest of family members due to water circulation, noise of an oxygenation pump and lighting.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the utility model aims to solve the technical problem that the prior art is not enough, and an intelligent aquarium is provided.
In order to solve the technical problem, the utility model provides an intelligence aquarium, including the aquarium body and the control system who is used for controlling the aquarium body, control system includes main control chip, temperature sensor, quality of water turbidity sensor and level sensor, and temperature sensor, quality of water turbidity sensor and level sensor send temperature signal, turbidity signal and liquid level signal to main control chip respectively, still are equipped with the water circulating pump by main control chip control on the aquarium body, trade the water pump, oxygenation pump, light, throw feeder and heating rod.
The utility model discloses in, water changing pump one end intercommunication aquarium body, the other end communicates waste pipe and moisturizing pipe respectively, is equipped with the first check valve that is used for getting rid of waste water on the waste pipe, is equipped with the second check valve that is used for the moisturizing to the aquarium body on the moisturizing pipe.
The utility model discloses in, water circulating pump, water changing pump, oxygenation pump, light, throw the food ware and the heating rod is all connected with main control chip electricity through relay module.
The utility model discloses in, temperature sensor, quality of water turbidity sensor, level sensor, water circulating pump, water change pump, oxygenation pump and heating rod are all installed on the fixed plate, and the fixed plate is located the aquarium body.
The utility model also comprises a display screen and a switch power supply;
the singlechip, the relay module, the display screen and the illuminating lamp are arranged on the upper part of the fixing plate;
the water circulating pump, the water changing pump, the oxygenation pump and the feeder are fixed on the middle upper part of the fixing plate;
the temperature sensor, the water quality turbidity sensor and the liquid level sensor are fixed in the middle of the fixing plate;
the heating rod is fixed at the lower part of the fixed plate.
In the utility model, the temperature sensor measures the water temperature and transmits a signal to the main control chip, and the main control chip compares the difference between the measured temperature of the sensor and the set temperature to judge whether to heat or not, when the measured temperature of the sensor is lower than the set temperature, the main control chip controls the normal close of the heating rod relay through the INT6 pin, and the heating rod starts to heat after being electrified; when the temperature measured by the sensor is higher than or equal to the set temperature, the main control chip controls the heating rod relay to be normally opened through the INT6 pin, the heating rod is powered off, and heating is stopped.
In the utility model, the water turbidity sensor measures the water quality in the aquarium and transmits signals to the singlechip, if the current water quality measured value is lower than the water circulation set value, the water quality is slightly changed, the main control chip controls the normal close of the water circulation pump relay through the INT2 pin, after the water circulation pump is electrified, the water in the aquarium body is pumped into the filter box containing the filter cotton, and the water passing through the filter cotton naturally flows into the aquarium body again;
when the measured value of the water quality is lower than the set value of water change, the water quality is seriously deteriorated, the singlechip controls a relay of the water change pump to be normally closed through an INT4 pin, the water change pump is electrified, and water change is started;
when the liquid level height is lower than 5CM, the singlechip controls the water change pump relay to be normally opened through an INT4 pin, the water change pump is powered off, water change is stopped, and water is manually supplemented.
The utility model discloses in, main control chip sets for oxygenation interval time and oxygenation time, and when the time interval reachd, main control chip passes through INT3 pin control oxygenation pump relay normally closed, and the oxygenation pump is opened, and the oxygenation time reachs the back, and main control chip passes through INT3 pin control oxygenation pump relay normally closed, and the oxygenation pump outage is closed.
The utility model discloses in, main control chip sets for a set of food time point of throwing and every throws the edible amount of throwing of food time point, and when reacing the food time point of throwing, the singlechip throws edible ware relay normal close through INT5 pin control, throws edible ware and throws out a fish and eat, and after interval 1S, the singlechip throws edible ware relay through INT5 pin control and normally opens, throws edible ware and resets to the record throws and eats a.
The utility model discloses in, master control chip sets for opening of multistage light and stops the interval, and it is interval to open when real time gets into corresponding opening of opening, and the singlechip passes through INT1 pin control lighting relay normally closed, and the light is opened, and current time leaves to open and stops the interval, and the singlechip opens through INT1 pin control lighting relay, and the light outage is closed.
Drawings
These and other advantages of the invention will become apparent from the following more detailed description of the invention, when taken in conjunction with the accompanying drawings and detailed description.
FIG. 1 is a schematic block diagram;
FIG. 2 is a circuit diagram;
FIG. 3 is a schematic view of an aquarium;
FIG. 4 is a schematic view of a fixation plate;
fig. 5 is a schematic structural diagram of a water changing module.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
Example (b):
as shown in fig. 1, the embodiment provides an intelligent aquarium, which comprises an aquarium body and a control system for controlling the aquarium body, wherein the control system mainly comprises a client 1, a node mcu singlechip with Wi-Fi as a main control chip 2, a relay module 3, a switching power supply 4, a temperature sensor 5, a water quality turbidity sensor 6, a liquid level sensor 7, a water circulating pump 8, a water changing pump 9, a lighting lamp 10, a feeder 11, an oxygenation pump 12, a heating rod 13, a display screen 14 and a peripheral circuit;
the control system can realize automatic heating, automatic water circulation, automatic water changing, timing oxygen supply, timing feeding, timing lamp turning on and off and timing sleep mode turning on according to the client setting, and all setting data can be set through the client.
The client is a mobile phone, a tablet or a computer, and can be a terminal for monitoring and managing the system through logging in a webpage or an APP; remote one-key lamp switching, one-key oxygen increasing, one-key water changing, one-key food feeding and one-key sleep modes can be realized through the client; meanwhile, real-time data of water temperature, water quality and water level height of the aquarium can be remotely checked through the client.
The display screen checks data information of real-time date, time, weather, water temperature in the aquarium and water quality.
Temperature sensor, quality of water turbidity sensor and level sensor send temperature signal, turbidity signal and liquid level signal to main control chip respectively, still are equipped with the water circulating pump, trade water pump, oxygenation pump, light, throw the feeder and the heating rod by main control chip control on the aquarium body.
In this embodiment, the temperature sensor 5 is a DS18B20 digital temperature sensor.
The water turbidity sensor 6 is a D080 analog turbidity sensor manufactured by LOGOELE.
The relay module 3 is an 8-line 5V relay module manufactured by Risym.
The liquid level Sensor 7 adopts a Water Sensor chip manufactured by cloud.
One end of the water changing pump is communicated with the aquarium body, the other end of the water changing pump is respectively communicated with the waste water pipe and the water replenishing pipe, the waste water pipe is provided with a first one-way valve for discharging waste water, and the water replenishing pipe is provided with a second one-way valve for replenishing water to the aquarium body.
The water circulating pump, the water changing pump, the oxygenation pump, the illuminating lamp, the feeder and the heating rod are all electrically connected with the main control chip through the relay module.
Temperature sensor, quality of water turbidity sensor, level sensor, water circulating pump, trades water pump, oxygenation pump and heating rod all install on the fixed plate, and the fixed plate is located the aquarium body.
The display screen and the switching power supply are also included;
as shown in fig. 2, the single chip microcomputer has 30 pins, wherein the pins D1, D2, D3, D4, D7 and D8 are respectively connected with pins INT1, INT2, INT3, INT4, INT5 and INT6 of the relay set, and are used for controlling 6 external devices; the pins D0, D9 and D10 are respectively connected with signal transmission pins of 3 sensors, namely a temperature sensor, a turbidity sensor and a water level sensor; the pins D5 and D6 are connected to the SCL and SDA pins of the OLED display module, respectively, for communicating with I2C of the OLED display module.
The heating equipment needs to provide an alternating current 220V power supply; the water pump and the feeder need to provide a direct current 12V power supply; the singlechip module, the relay module, the oxygenation pump and the illuminating lamp need to use a direct current 5V power supply. Therefore, two types of voltage reduction modules are simultaneously used in the design, namely AP12N05-Zero and HQ05P10LRN industrial grade AC-to-DC power supply modules manufactured by HIECUBE company. The AP12N05-Zero voltage reduction module is used for converting AC220V into DC12V module, and the HQ05P10LRN voltage reduction module is used for converting AC220 into DC5V module.
The transmission of parameters such as real-time temperature data, upper and lower temperature limits, etc. can be realized by connecting the I/O pin of DS18B20 with the IO pin of the NodeMCU, as shown in FIG. 3, the I/O pin of DS18B20 is connected with the temperature sensor pin of the NodeMCU. A4.7K omega pull-up resistor is connected between the I/O pin and VCC, and the resistor can play a pull-up role when DS18B20 is open, so that other circuits can be protected.
As shown in fig. 3 and 4, the device comprises a feeder 1, a display screen 2, a relay group 3, an LED lighting lamp 4, a switching power supply 5, a power line 6, a plug 7, a water circulating pump 8, a water changing pump 9, an oxygenation pump 10, a water turbidity sensor 11, a humidity sensor 12, a liquid level sensor 13, a heating rod 14, a hook 15, a fixing plate 16 and a filter box 17;
the upper part of a feeder 1, a relay group 3, a display screen 2, a lighting lamp 4 and a switch power supply 5 fixing plate 16;
the water circulating pump 8, the water changing pump 9 and the oxygenation pump 10 are fixed on the middle upper part of the fixed plate 16;
the temperature sensor 12, the water quality turbidity sensor 11 and the liquid level sensor 13 are fixed in the middle of the fixing plate 16;
the heating rod 14 is fixed to the lower portion of the fixing plate.
In this embodiment, the feeder comprises two parts, the first part is the cabin body of the feeder, and the cabin body adopts the structure of leaking hopper-shaped for depositing fish food. The second part is a feeding gun of the feeder, the feeder comprises an electromagnetic push rod device and a feeding tongue, and the feeding tongue is arranged at the head of the electromagnetic push rod and is driven by the push rod to perform the action of feeding fish food.
The temperature sensor measures the water temperature, and transmits a signal to the main control chip, the main control chip compares the difference between the measured temperature of the sensor and the set temperature to judge whether to heat, when the measured temperature of the sensor is lower than the set temperature, the main control chip controls the normally closed state of the heating rod relay through an INT6 pin, and the heating rod starts to heat after being electrified; when the temperature measured by the sensor is higher than or equal to the set temperature, the main control chip controls the heating rod relay to be normally opened through the INT6 pin, the heating rod is powered off, and heating is stopped.
The water quality turbidity sensor measures the water quality in the aquarium and transmits a signal to the singlechip, if the current water quality measured value is lower than a water circulation set value, the water quality is light and slightly deteriorated, the main control chip controls the normally closed state of a water circulation pump relay through an INT2 pin, after the water circulation pump is electrified, the water in the aquarium body is pumped into a filter box containing filter cotton, and the water passing through the filter cotton naturally flows into the aquarium body;
when the measured value of the water quality is lower than the set value of water change, the water quality is seriously deteriorated, the singlechip controls a relay of the water change pump to be normally closed through an INT4 pin, the water change pump is electrified, and water change is started;
when the liquid level height is lower than 5CM, the singlechip controls the water change pump relay to be normally opened through an INT4 pin, the water change pump is powered off, water change is stopped, and water is manually supplemented.
The main control chip sets oxygenation interval time and oxygenation time, 12 points are used every day, oxygenation is carried out for 20 seconds, when the time interval is up, the main control chip controls the relay of the oxygenation pump to be normally closed through an INT3 pin, the oxygenation pump is started, after the oxygenation time is up, the main control chip controls the relay of the oxygenation pump to be normally closed through an INT3 pin, and the oxygenation pump is turned off.
The main control chip sets a group of feeding time points and the feeding amount of each feeding time point, feeding is performed once at 12 points every day, when the feeding time points are reached, the single chip microcomputer controls the feeding device relay to be normally closed through an INT5 pin, the feeding device throws a part of fish food, after an interval of 1S, the single chip microcomputer controls the feeding device relay to be normally opened through an INT5 pin, the feeding device resets, and the feeding amount of the fish food is recorded.
The main control chip sets for the start-stop interval of multistage light, 18 o 'clock to 23 o' clock turn on every day, and all the other time turn off the lamp, get into corresponding start-stop interval when real time, and the singlechip passes through INT1 pin control illumination relay normal close, and the light is opened, and the current time leaves to open and stop the interval, and the singlechip is normally opened through INT1 pin control illumination relay, and the light outage is closed.
The specific functions are implemented as follows:
a single chip microcomputer: the singlechip is a NodeMCU with Wi-Fi and communicates with the client through Wi-Fi.
Automatic heating: measuring the current water temperature through a temperature sensor, and if the current temperature is lower than the set temperature by 25.6 ℃, controlling the heating rod to be electrified by the singlechip to heat; if the current water temperature is larger than or equal to the set temperature, the singlechip controls the heating rod to be powered off to stop heating.
Automatic water circulation: the water quality condition in the aquarium is measured by a water quality turbidity sensor. If the current water quality measured value is lower than the water circulation set value, the single chip microcomputer automatically starts water circulation. The water circulation set value is set to be 20%, when the measured value of the turbidity sensor is higher than 20%, the water quality is light and slightly deteriorated, the singlechip automatically controls the water circulation pump to be started, the water in the aquarium is pumped into the filter box containing the filter cotton, and the water passing through the filter cotton flows into the aquarium.
Automatic water changing: the water quality condition in the aquarium is measured by the water quality turbidity sensor, and the liquid level height in the aquarium is measured by the water level sensor. When the measured value of the water quality is lower than the set value of water change, the single chip microcomputer automatically starts the water change. The water change set value is set to 60%, when the measured value of the turbidity sensor is higher than 20%, and the water quality is seriously deteriorated, the water change is automatically executed once. Meanwhile, the interval time of water changing can be set through the client, and water changing is automatically carried out after the interval time is up.
Water changing: the singlechip controls the water changing pump to operate in the positive direction, and water in the aquarium is pumped out to the waste water tank. When the measured value of the water level is 5cm lower than the lowest water level value, the singlechip automatically controls the water changing pump to run reversely to pump the water in the supplementary water tank into the aquarium. When the measured value of the water level is greater than or equal to 80% of the highest water level of the aquarium, the singlechip automatically controls the water-changing pump to be closed. And after the water is changed, a prompt of 'please clean the waste water tank and the water replenishing tank' is sent to the client.
Timed oxygenation: the client can set the oxygenation interval time and the oxygenation time, when the time interval arrives, the single chip microcomputer automatically controls the oxygenation pump to be started, and after the oxygenation time arrives, the single chip microcomputer automatically controls the oxygenation pump to be stopped.
Timing feeding: the client can set a plurality of feeding time points and the feeding amount of each time point, when the real-time reaches the corresponding time point every day, the single chip automatically controls the feeding device, and fish food is fed according to the correspondingly set feeding amount.
Turning on and off the lamp at fixed time: can set for the start-stop interval of multistage light through the customer end, every day gets into corresponding start-stop interval as real-time, and singlechip automatic control light is opened, and the current time leaves and stops the interval, and singlechip automatic control light closes.
Starting a sleep mode at fixed time: the client can set the start-stop interval of the sleep mode, and the system can automatically enter the sleep mode when the start-stop interval is reached every day.
A sleep mode: in the sleep mode, the system automatically turns off the illuminating lamp, the display screen, the automatic water changing and the automatic water circulation, and the oxygenation pump automatically enters the low-frequency working mode and works for 1 minute every hour.
One-key switch lamp: and the switch of the illuminating lamp is controlled by clicking the illuminating lamp button on the client.
One-key oxygen increasing: and the switch of the oxygenation pump is controlled by clicking the button of the oxygenation pump on the client.
Changing water by one key: once the water change button is clicked on the client, the water change is executed once.
One-key feeding: and a fish feed can be thrown out by the feeder by clicking the feed throwing button once on the client.
One-touch sleep mode: once the sleep button is clicked on the client, the system enters a sleep mode.
Specifically, the method comprises the following steps: as shown in fig. 5, the water changing module comprises the following components and specific working modes: the water changing module consists of a waste water interface 21, a waste water output pipeline one-way valve 22, a three-way pipeline 23, a water supplementing interface 24, a water supplementing input pipeline one-way valve 25, a water changing pump 9 and a connecting pipeline 27; when the water change pump is controlled to be powered on with positive voltage, the water change pump runs in the positive running direction 28, and liquid only enters from the water supplement interface 24 under the limitation of the one-way valve; when the water-changing pump is controlled to be connected with a reverse power supply, the water-changing pump runs in the reverse running direction 29, and liquid is only discharged from the waste water interface 21 under the limitation of the one-way valve, so that the one-way valve has two functions, and the cost is reduced.
The control system adopts an integrated design, is a complete aquarium control system convenient to implement, and is convenient to easily install in various aquariums. Through remote operation, the aquarium can be managed in different places, and the situation that the aquarium cannot be maintained due to going out is avoided. The intelligent automatic control system also releases a great deal of management energy, so that the ornamental fish culture becomes easy and pleasant. Meanwhile, when the fish is viewed, the information such as weather conditions can be easily acquired through a display screen on the equipment.
The utility model provides an intelligence aquarium specifically realizes that this technical scheme's method and approach are many, above only the utility model discloses a preferred embodiment should point out, to the ordinary technical personnel in this technical field, not deviating from the utility model discloses under the prerequisite of principle, can also make a plurality of improvements and moist decorations, these improvements should also be regarded as with moist decorations the utility model discloses a protection scope. All the components not specified in the present embodiment can be realized by the prior art.
Claims (1)
1. An intelligent aquarium is characterized by comprising an aquarium body and a control system for controlling the aquarium body, wherein the control system comprises a main control chip, a temperature sensor, a water turbidity sensor and a liquid level sensor, the temperature sensor, the water turbidity sensor and the liquid level sensor respectively send temperature signals, turbidity signals and liquid level signals to the main control chip, and the aquarium body is also provided with a water circulating pump, a water exchange pump, an oxygenation pump, a lighting lamp, a feeder and a heating rod which are controlled by the main control chip;
one end of the water changing pump is communicated with the aquarium body, the other end of the water changing pump is respectively communicated with the waste water pipe and the water replenishing pipe, the waste water pipe is provided with a first one-way valve for discharging waste water, and the water replenishing pipe is provided with a second one-way valve for replenishing water to the aquarium body; when the water change pump is electrified with positive voltage, the water change pump runs in the forward running direction, and liquid enters the box body from the water supply pipe under the limitation of the one-way valve; when the water change pump is reversely connected with a power supply, the water change pump runs in the reverse running direction, and liquid in the box body is discharged from the waste water pipe under the limitation of the one-way valve;
the water circulating pump, the water changing pump, the oxygenation pump, the illuminating lamp, the feeder and the heating rod are all electrically connected with the main control chip through the relay module;
the temperature sensor, the water quality turbidity sensor, the liquid level sensor, the water circulating pump, the water changing pump, the oxygenation pump and the heating rod are all arranged on a fixed plate, and the fixed plate is positioned in the aquarium body;
the intelligent aquarium also comprises a display screen and a switching power supply;
the feeder, the relay module, the display screen and the illuminating lamp are arranged on the upper part of the fixing plate;
the water circulating pump, the water exchange pump and the oxygenation pump are fixed on the middle upper part of the fixed plate;
the temperature sensor, the water quality turbidity sensor and the liquid level sensor are fixed in the middle of the fixing plate;
the heating rod is fixed at the lower part of the fixing plate;
the feeder comprises two parts, wherein the first part is a cabin body of the feeder, and the cabin body adopts a funnel-shaped structure and is used for storing fish food; the second part is a feeding gun of the feeding device, the feeding gun comprises an electromagnetic push rod device and a feeding tongue, and the feeding tongue is arranged at the head of the electromagnetic push rod and is driven by the push rod to perform the action of feeding fish food.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921045522.8U CN212212375U (en) | 2019-07-05 | 2019-07-05 | Intelligent aquarium |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921045522.8U CN212212375U (en) | 2019-07-05 | 2019-07-05 | Intelligent aquarium |
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| CN212212375U true CN212212375U (en) | 2020-12-25 |
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| CN201921045522.8U Active CN212212375U (en) | 2019-07-05 | 2019-07-05 | Intelligent aquarium |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112715462A (en) * | 2020-12-31 | 2021-04-30 | 华南师范大学 | Intelligent fish tank based on Internet of things |
| CN113519429A (en) * | 2021-06-25 | 2021-10-22 | 湖南裕翔生物科技有限公司 | Automatically controlled formula fluid feed spraying apparatus and system |
| CN113728958A (en) * | 2021-06-15 | 2021-12-03 | 湖南裕翔生物科技有限公司 | Fluid feed spraying equipment and system |
-
2019
- 2019-07-05 CN CN201921045522.8U patent/CN212212375U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112715462A (en) * | 2020-12-31 | 2021-04-30 | 华南师范大学 | Intelligent fish tank based on Internet of things |
| CN113728958A (en) * | 2021-06-15 | 2021-12-03 | 湖南裕翔生物科技有限公司 | Fluid feed spraying equipment and system |
| CN113519429A (en) * | 2021-06-25 | 2021-10-22 | 湖南裕翔生物科技有限公司 | Automatically controlled formula fluid feed spraying apparatus and system |
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