WO2017036378A1

WO2017036378A1 - Intelligent heating rod and aquarium

Info

Publication number: WO2017036378A1
Application number: PCT/CN2016/097298
Authority: WO
Inventors: 齐军
Original assignee: 北京航之境科技有限公司
Priority date: 2015-09-01
Filing date: 2016-08-30
Publication date: 2017-03-09
Also published as: CN105075968A; CN105075968B

Abstract

An intelligent heating rod and an aquarium. The Intelligent heating rod (1) comprises: a heating core (101), a temperature control unit (102), a thyristor (103) and a power line (104), wherein two output ends of the thyristor (103) are respectively connected to the heating core (101) and the power line (104), and an input end thereof is connected to the temperature control unit (102); the temperature control unit (102) performs zero-crossing detection on an alternating current provided by the power line (104), controls the ON and OFF of the thyristor (103) when the alternating current is at zero crossing point, and adjusts a time scale of heat generation and non-heat generation of the heating core in unit time by controlling a time scale of the thyristor (103) in an ON state and in an OFF state in unit time, and thus adjusts the heating power of the intelligent heating rod (1). The present intelligent heating rod (1) uses a thyristor (103) to control the power on/off of a heat generation core (101), so that the oxidation and adhesion phenomena can be prevented from occurring to a mechanical contact, and by using the policy of triggering a thyristor at a zero-crossing point so as to enable same to work in a complete alternating current period, the service life of the thyristor (103) is improved, and a temperature control function with higher accuracy can be realized, which is more beneficial for the healthy growth of fishes.

Description

Intelligent heating rod and aquarium

cross reference

This application claims that the filing date is September 1, 2015, the application number is 201510552806.6, and the invention title is “an intelligent heating rod and aquarium”.

Technical field

Embodiments of the present invention relate to the field of aquaculture, and in particular to an intelligent heating rod and an aquarium.

Background technique

This section is intended to provide a background or context for the embodiments of the invention set forth in the claims. The description herein is not admitted to be prior art as it is included in this section.

The heating rod is the most common heating tool in the aquarium. The cultivation of tropical fish outside the tropics generally requires the heating rod to be placed in the aquarium, in addition to the function of heating the water to allow the fish to live at a suitable temperature. It can also be used to treat sick fish or to provide higher water temperatures for some fish to promote their reproduction.

Tropical fish have very high temperature requirements. Water temperature is too hot, too cold or temperature fluctuations can easily lead to fish disease or death. Therefore, studying the temperature control performance of heating rods is very important for the use of aquarium for tropical fish farming. .

Summary of the invention

In the process of implementing the present invention, the inventors have found that most of the conventional heating rods use a mechanical contact such as a bimetal or a relay to control the on/off state of the heating core in the temperature control. This temperature control mode has many defects. For example, the accuracy is low, the error is generally ±2 ° C or higher, the mechanical contact is easy to adhere due to oxidation or overheating, which limits the service life of the heating rod, and in severe cases, the heating core continues to heat to form "boiled fish". "Phenomenon; In addition, the traditional heating rod has only a small number of temperature regulation levels, and can not meet the fish culture with higher temperature requirements.

In order to overcome the above problems of the conventional heating rod, the present invention provides an intelligent heating rod with high temperature control precision and long service life.

In a first aspect of an embodiment of the present invention, an intelligent heating rod is provided, comprising: a heating core, a temperature control unit, a thyristor, and a power supply line;

The two output ends of the thyristor are respectively connected to the heating core and the power line, and the input end is connected to the temperature control unit;

When the thyristor is turned on, the power line supplies alternating current to the heating core, and the heating core is energized and generates heat;

When the thyristor is turned off, the power line stops supplying alternating current to the heating core, and the heating core is powered off and stops heating;

The temperature control unit is configured to perform zero-crossing detection on the alternating current provided by the power line, and control the thyristor to be turned on or off at an alternating current zero-crossing point according to the result of the zero-crossing detection, and by controlling the thyristor The ratio of the time in the on state and the off state per unit time is used to adjust the proportion of time during which the heating core generates heat and stops heating in a unit time, thereby adjusting the heating power of the intelligent heating rod.

In a second aspect of an embodiment of the invention, an aquarium is provided comprising: a fish tank, and an intelligent heating rod as described above.

By means of the above technical solution, the invention has the following advantages: the thyristor without mechanical contacts is used to control the on-off state of the heating core, compared with the case where the conventional heating rod adopts a mechanical contact such as a bimetal or a relay, The invention can well avoid the phenomenon of oxidative adhesion of the mechanical contacts; the strategy of using the zero-crossing point to trigger the thyristor to operate in the complete alternating current cycle reduces the electromagnetic interference of the thyristor and improves the service life of the thyristor, thereby improving the whole The service life of the intelligent heating rod; adjusting the ratio of the heating time of the heating core and stopping the heating by controlling the thyristor, thereby adjusting the heating power of the intelligent heating rod, compared with the case where the conventional heating rod has only a few temperature adjustment levels, the present invention can Achieving more precise temperature control is more conducive to the healthy growth of fish.

DRAWINGS

The above and other objects, features and advantages of the exemplary embodiments of the present invention will become < In the drawings, several embodiments of the invention are shown in the

Figure 1 schematically shows an application scenario of the present invention;

2A and 2C to 2I are schematic structural diagrams of an exemplary device 1;

2B schematically illustrates an AC zero crossing detection result of an exemplary device 1;

FIG. 3 is a schematic diagram showing the appearance of the first embodiment of the exemplary device 1; FIG.

4 is a structural block diagram of an exemplary device 3;

5 is a circuit connection diagram of an aquarium intelligent heating rod with a day and night temperature adjustment mode according to Embodiment 1 of the exemplary device 3;

6 is a circuit connection diagram of an aquarium intelligent heating rod with a day and night temperature adjustment mode provided by Embodiment 2 of the exemplary device 3;

Figure 7 (a) is a front elevational view of an aquarium intelligent heating rod with a day and night temperature adjustment mode provided in the fourth embodiment of the exemplary apparatus 3;

Figure 7 (b) is a cross-sectional view of the aquarium intelligent heating bar with the day and night temperature adjustment mode provided in the fourth embodiment of the exemplary device 3;

Figure 7 (c) is a bottom view of the aquarium intelligent heating bar with day and night tempering mode provided in the fourth embodiment of the exemplary device 3;

Figure 8 is a block diagram showing the structure of an exemplary device 4;

9 is a schematic diagram showing the circuit connection of a wireless temperature-controlled aquarium intelligent heating rod provided in Embodiment 1 of the exemplary device 4;

10 is a schematic diagram showing the circuit connection of a wireless temperature-controlled aquarium intelligent heating rod provided in Embodiment 2 of the exemplary device 4;

11 is a schematic diagram of the appearance of a wireless temperature-controlled aquarium intelligent heating rod provided in Embodiment 3 of the exemplary device 4;

FIG. 12 is a table showing the operation states of the counter DJ, the decoder DY, and the LEDs LED-0 to LED-15 provided in the first embodiment of the exemplary device 4.

detailed description

The principles and spirit of the present invention are described below with reference to a few exemplary embodiments. It is to be understood that the embodiments are presented only to enable those skilled in the art to understand the invention. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

According to an embodiment of the present invention, an intelligent heating rod and an aquarium are proposed.

In this context, it is to be understood that the term "full power" is used to mean the power of the heating core to continue to heat up per unit time. In addition, in this paper, the heating power of the smart heating rod is the heating power of the heating core. In addition, any number of elements in the drawings are used for purposes of example and not limitation, and any naming is used only for the purpose of limitation, without any limitation.

The principles and spirit of the present invention are explained in detail below with reference to a few representative embodiments of the invention.

Summary of invention

The inventors have found that the conventional heating rods mostly use a mechanical contact such as a bimetal or a relay to control the on/off state of the heating core in temperature control. This temperature control mode has many defects, for example, temperature control accuracy. Lower, the error is generally ±2 °C or higher, the mechanical contacts are prone to adhesion due to oxidation or overheating, which limits the service life of the heating rod, and in severe cases, the heating core continues to heat to form a "boiled fish" phenomenon; Traditional heating rods only have a small number of temperature adjustment levels, and the temperature rise slope cannot be adjusted to meet the requirements of fish culture with high temperature requirements.

To this end, the present invention provides an intelligent heating rod with high temperature control precision and long service life. The heating rod includes: a heating core, a temperature control unit, a thyristor, and a power cord.

In the present invention, when the thyristor is turned on, the power supply line supplies alternating current to the heating core, and the heating core is energized and generates heat; when the thyristor is turned off, the power supply line stops supplying alternating current to the heating core, and the heating core is powered off and stops heating.

The invention adopts a thyristor without mechanical contacts to control the on-off state of the heating core, and the oxidation contact of the mechanical contact can be well avoided compared to the case where the conventional heating rod adopts a mechanical contact such as a bimetal or a relay. The phenomenon.

In the invention, the temperature control unit is configured to perform zero-crossing detection on the alternating current provided by the power line, control the thyristor to be turned on or off when the alternating current zero-crossing point, and control the thyristor to be in a conducting state and a shutdown state in a unit time. The proportion of time, to adjust the proportion of time that the heating core heats up and stops heating in unit time, and then adjusts the heating power of the intelligent heating rod.

The invention adopts a zero-crossing trigger thyristor to operate the complete alternating current cycle strategy, reduces the electromagnetic interference of the thyristor, improves the service life of the thyristor, thereby improving the service life of the entire intelligent heating rod; adjusting the heating by controlling the thyristor The proportion of time during which the core heats up and stops heating, and then adjusts the heating power of the intelligent heating rod. Compared with the conventional heating rod, which has only a few temperature adjustment levels, the present invention can realize a more precise temperature control function, which is more advantageous for fish. Healthy growth.

Having described the basic principles of the invention, various non-limiting embodiments of the invention are described in detail below.

Application scenario overview

Referring first to FIG. 1, a scenario in which the smart heating rod provided by the present invention can be applied includes: an aquarium 3, a fish tank 2, and a smart heating rod 1. The aquarium 3 includes a fish tank 2, an intelligent heating rod 1, and may also include, for example, an illumination lamp, an air pump, an external or built-in circulation filter, a surf pump, and the like. The smart heating rod 1 is installed inside the fish tank 2 and is connected to the commercial power.

Exemplary device one

An exemplary smart heating rod of the present invention will now be described with reference to Figures 2A-2I in conjunction with the application scenario of Figure 1. It should be noted that the above application scenarios are only shown to facilitate understanding of the spirit and principle of the present invention, and embodiments of the present invention are not limited in this respect. Rather, embodiments of the invention may be applied to any scenario that is applicable.

As shown in FIG. 2A, the exemplary smart heating bar includes a heater core 101, a temperature control unit 102, a thyristor 103, and a power cord 104.

In specific implementation, the heating core 101 may be made of a silicon carbide ceramic material having high heat conversion efficiency and good heat radiation performance; the thyristor 103 may be a bidirectional thyristor or the like.

The two output ends of the thyristor 103 are respectively connected to the heating core 101 and the power supply line 104, and the input end is connected to the temperature control unit 102. When the thyristor 103 is turned on, the power supply line 104 supplies alternating current to the heating core 101, and the heating core 101 is energized and generates heat. When the thyristor 103 is turned off, the power supply line 104 stops supplying AC power to the heating core 101, and the heating core 101 is powered off and stops heating.

The invention adopts the thyristor 103 without mechanical contacts to control the on-off state of the heating core 101, and the mechanical contact can be well avoided compared to the case where the conventional heating rod adopts a mechanical contact such as a bimetal or a relay. Oxidation of adhesions (even "cooked fish").

The temperature control unit 102 is configured to perform zero-crossing detection on the alternating current provided by the power line 104, and control the thyristor 103 to be turned on or off at the alternating current zero-crossing point according to the result of the zero-crossing detection, and is turned on by the control thyristor 103 in a unit time. The ratio of the state and the time of the off state is used to adjust the proportion of time during which the heating core 101 generates heat and stops heating in a unit time, thereby adjusting the heating power of the intelligent heating rod.

Specifically, as shown in FIG. 2B, the AC power provided by the power line 104 changes with time t, wherein a, b, c, d, e, and the like are zero crossings. The temperature control unit 102 controls the thyristor 103 to be turned on or off at the rising or falling edge of the zero current of the alternating current according to the result of the zero-crossing detection. For example, in FIG. 2B, the thyristor 103 is turned on at the zero-crossing points a and c. The zero points b, d turn off the thyristor 103, so that in the alternating current period between the zero-crossing points a, b and the zero-crossing points c, d, the heating core 101 is energized and generates heat, at the zero-crossing point b During the alternating current period between the alternating current period between c and c and the zero-crossing points d and e, the heating core 101 is in a power-off state and stops heating.

By controlling whether the thyristor 103 is turned on or not to adjust the ratio of the time during which the heating core 101 generates heat and stops heating in a unit time, and thereby adjusting the heating power of the smart heating rod, the exemplary intelligent heating rod can control the heating core 101 to Any percentage of its full power is heated. For example, if the temperature control unit 102 controls the ratio of the time during which the heating core 101 generates heat and stops heating in a unit time is 1:1, the heating power of the heating core 101 is 50% of the full power, and if the temperature control unit 102 controls the heating core When the ratio of the time of heating and stopping the heating in the unit time is 1:4, the heating power of the heating core 101 is 20% of the full power. Compared with the current conventional heating rod with only a few temperature adjustment levels, the exemplary intelligent heating rod can control the heating core 101 to generate different levels of heating power, achieve higher precision temperature control function, and is more conducive to healthy fish growth. .

At present, in the continuously adjustable power control technology using the thyristor 103, a mode for controlling the conduction angle variation of the thyristor 103 is mostly used, but this mode generates a large back electromotive force and a strong electromagnetic interference, resulting in the thyristor 103. The short life span is not suitable for controlling the on/off of the heating core 101 in the heating rod. In view of this, the present invention further employs a thyristor 103 having no mechanical contacts to control the on-off state of the heater core 101, and further employs a strategy of triggering the thyristor 103 to operate the thyristor 103 in a complete AC cycle. Experiments show that this strategy can minimize the back electromotive force generated by thyristor 103, minimize electromagnetic interference, and have the highest power factor, thereby increasing the service life of thyristor 103 and greatly extending the service life of the entire intelligent heating rod.

Optionally, as shown in FIG. 2C , the exemplary smart heating bar may further include: a water temperature sensor 105 and a temperature setting unit 106 .

The water temperature sensor 105 is used to detect the temperature of the water in the aquarium in real time.

At present, the traditional heating rod has a common error in temperature measurement, which inevitably leads to low temperature control accuracy. In order to overcome this problem, in the implementation, optionally, the Shibaura PT3-43C 1% precision temperature sensor can be used in real time. The temperature of the water in the aquarium is detected, the detection accuracy can reach 1%, and the sensitivity can reach ±0.1 °C.

At present, in the conventional heating rod, the sensor for detecting the water temperature is generally installed inside the heating rod housing, and is close to the heating element, and is not in direct contact with the water body. This installation method causes the water temperature detection result to be easily affected by the heating element. It is not a real water body temperature, and the error is large. In view of this, in the specific implementation of the present invention, optionally, the water temperature sensor 105 is sealed in a heat pipe, and the heat pipe is disposed on the top of the entire smart heating rod, so that the heat pipe and the water in the aquarium are directly Contact so that the water temperature sensor 105 accurately detects the temperature of the water body. In order to further avoid the influence of the heating core 101, optionally, a heat insulating layer may be added between the water temperature sensor 105 and the heating core 101 to obtain a more accurate detection result.

The temperature setting unit 106 receives the temperature setting command input by the user, and parses out a target temperature from the temperature setting command. The target temperature is the water temperature balance point desired by the user, and a suitable target temperature can be determined according to the species of fish cultured in the aquarium.

At present, the conventional heating rods work in a mode in which the heating element is energized and heated when the temperature is lower than the desired temperature, and the heating element is de-energized and stops heating when the temperature is higher than the desired temperature. However, this working mode easily causes water temperature fluctuation and overshoot, and different regions. The temperature gradient varies greatly (that is, the temperature difference between the waters in different regions is large, and the water temperature is lower from the heating rod), which makes it very easy for the fish to shuttle in the hot and cold water. This situation is more obvious in winter (winter The outside temperature is low, and the water body area far from the heating rod is close to the outside, and the water temperature is quite different compared to the water body area which is close to the heating rod and away from the outside.

In order to overcome the above-mentioned defects of the conventional heating rod, the exemplary intelligent heating rod adopts a successive approximation temperature control strategy, that is, when the temperature control unit 102 determines that the temperature of the water in the aquarium is lower than the target temperature, the calculation is performed in the aquarium. The difference between the temperature of the water and the target temperature. If the difference is larger, the greater the proportion of time during which the heating core 101 generates heat and stops heating in a unit time, so that the heating power of the intelligent heating rod is larger, and the difference is greater. If it is small, the smaller the proportion of time during which the heating core 101 generates heat and stops heating in a unit time, so that the heating power of the smart heating rod is smaller.

That is to say, in this successive approximation temperature control strategy, the temperature control unit 102 controls the change in the proportion of time during which the heating core 101 generates heat and stops heating in a unit time (this is the difference between the temperature of the water in the aquarium). The change in the difference from the target temperature is positively correlated, or the temperature control unit 102 controls the change in the heating power of the intelligent heating rod to be positively correlated with the change in the difference. For example, when the difference between the temperature of the water in the aquarium and the target temperature is 5 ° C, the temperature control unit 102 controls the heating core 101 to be sent in a unit time. The ratio of heat to stop heating is 4:1, that is, the heating power of the heating core 101 is 80% of the full power; when the difference between the temperature of the water in the aquarium and the target temperature is 3 ° C, the temperature control unit 102 controls The ratio of the time during which the heating core 101 generates heat and stops heating in a unit time is 3:2, that is, the heating power of the heating core 101 is 60% of the full power; when the difference between the temperature of the water in the aquarium and the target temperature is 1 °C At this time, the temperature control unit 102 controls the heating core 101 to heat up and stop heating in a unit time for a ratio of 1:4, that is, the heating power of the heating core 101 is 20% of its full power.

Through this successive approximation temperature control strategy, the exemplary intelligent heating rod is finally adjusted to a suitable heating power to maintain the water temperature near the target temperature, completely solving the large temperature gradient, temperature fluctuation and overshoot in different regions of the aquarium. Such problems are conducive to the growth of fish.

In the process of realizing the present invention, the inventors found that the water environment in which tropical fish live in nature has a temperature difference between day and night. Usually, the nighttime temperature will decrease by 1-3 °C than the daytime temperature, and the metabolism of fish at night will slow down and gradually enter a sleep state. Affected by this temperature difference between day and night, the biological rhythm formed by fish, while the heating function of the traditional heating rod is single, it can not properly adjust the water temperature of the aquarium during the day and night, causing the fish's biological rhythm to be destroyed. There are cases where the fish is sick or the growth is not good enough.

In order to overcome the above problems of the conventional heating rod, optionally, as shown in FIG. 2D, the exemplary intelligent heating rod may further include: a day and night monitoring unit 107, a day and night temperature difference setting unit 108, to achieve water temperature of the aquarium Appropriate adjustments to simulate changes in the temperature difference between day and night in the natural water environment.

The day and night monitoring unit 107 is used to monitor the day and night conditions (day or night) of the environment in which the aquarium is located.

In a specific implementation, optionally, the day and night monitoring unit 107 can determine the day and night condition by monitoring the light change of the environment in which the aquarium is located, and can also determine the day and night condition by the local time of the environment in which the aquarium is located (for example, 7:00-19) :00 for the day and the rest for the night). The present invention is not limited to the technique used for the day and night monitoring unit 107 for determining the day and night situation. The above description is only an example and is not intended to limit the scope of the present invention. Any other choice within the spirit and principles of the present invention. Technical judgments of day and night should be included in the scope of protection of the present invention.

The day and night temperature difference setting unit 108 receives the day and night temperature difference setting command input by the user, and parses out a temperature difference value and a target temperature setting standard from the day and night temperature difference setting command. The target temperature setting standard indicates whether the target temperature resolved from the temperature setting command is for daytime setting or nighttime setting. Optionally, if the user does not indicate whether the target temperature is for the daytime setting or the nighttime setting by the day and night temperature difference setting command, the target temperature may be set to be set for the daytime by default.

The temperature control unit 102 is further configured to: when the target temperature setting criterion indicates that the target temperature is set for the daytime, if the day and night condition of the environment in which the aquarium is located is daytime, the water in the aquarium Controlling the heating core 101 to generate heat when the temperature is lower than the target temperature, and if the day and night conditions of the environment in which the aquarium is placed are nighttime, the temperature of the water in the aquarium is lower than the target temperature and the temperature difference. Controlling the heating core 101 to generate heat when the difference is; and, in the case where the target temperature setting standard indicates that the target temperature is set for nighttime, if the day and night conditions of the environment in which the aquarium is located are daytime, then Controlling the heating core 101 to generate heat when the temperature of the water in the aquarium is lower than the sum of the target temperature and the temperature difference, and if the day and night conditions of the environment in which the aquarium is located are nighttime, the water in the aquarium The heating core 101 is controlled to generate heat when the temperature is lower than the target temperature.

Through the above process, the exemplary intelligent heating rod can adjust the water temperature balance point in the aquarium according to the day and night change, thereby simulating the variation of the day and night temperature difference of the natural water environment, and the exemplary intelligent heating rod is more than the conventional heating rod. The biological rhythm suitable for cultivating fish helps to promote the growth of fish in the aquarium and to prevent fish from becoming sick.

In a specific implementation, the temperature setting command may be configured to further include a target temperature set by the temperature setting unit 106, and a night temperature setting value, wherein the daytime temperature setting value is for the daytime. Set the water temperature balance point, the night temperature setting is the water temperature balance point set for the night. The day and night monitoring unit 107 monitors the day and night conditions (day or night) of the environment in which the aquarium is located. The temperature control unit 102 is further configured to control the heating of the heating core 101 when the temperature of the water in the aquarium is lower than the daytime temperature setting when the day and night conditions of the environment in which the aquarium is located are daytime; when the environment of the aquarium is in an environment The day and night condition is nighttime, and the heating core 101 is controlled to heat when the temperature of the water in the aquarium is lower than the inter-temperature setting value.

At present, the conventional heating rods work to heat the heating elements at a fixed power (full power of the heating elements), which causes the conventional heating rods to have only one heating power, but different sizes of aquariums, breeding The heating power of the heating rods required for different fish is different, and the current range of heating rods with only one heating power is limited.

In view of this, in order to expand the range of application of the exemplary smart heating rod, optionally, as shown in FIG. 2E, the exemplary smart heating rod may further include: a power setting unit 109.

The power setting unit 109 receives the power setting command input by the user, and parses a target power from the power setting command. The temperature control unit 102 is further configured to control the heating power of the smart heating rod to be maintained below the target power.

The foregoing has explained that the exemplary smart heating rod can cause the heating core 101 to heat up at any percentage of its full power, on the basis of which the exemplary intelligent heating rod is further provided by the power setting unit 109 to allow the user to apply according to The function of a target power is set by the size of the aquarium and the type of fish to be cultured, and the heating power of the intelligent heating rod is controlled by the temperature control unit 102 to maintain the target power. Below the rate (i.e., during heating, no matter how the heating power of the heating core 101 changes, the target power is not exceeded), so that the actual heating power of the intelligent heating rod satisfies the aquarium size and the requirements of the farmed fish. For example, for an aquarium having a size of 200 cm×60 cm×100 cm, the target power can be set equal to the full power of the heating core 101, and for an aquarium having a size of 100 cm×40 cm×60 cm, the target power can be set equal to the full power of the heating core 101. 60% of the aquarium having a size of 70 cm x 30 cm x 40 cm can be set to have a target power equal to 40% of the full power of its heater core 101.

In the process of implementing the present invention, the inventors have found that when the conventional heating rod needs to adjust the temperature, the user must manually insert the hand into the aquarium to complete the operation, which is not convenient (especially for the large-sized aquarium, which is very inconvenient), and It is easy to bring in harmful substances such as bacteria and viruses, cause pollution to water bodies, and adversely affect fish growth. In addition, if electric heaters such as heating rods or pumps in the water leak due to malfunction, the user may be at risk of electric shock. In view of the above problems, optionally, as shown in FIG. 2F, the exemplary smart heating bar may further include: a wireless transmission unit 110 and a wireless remote controller 111.

The wireless remote controller 111 is placed outside the aquarium for transmitting a command input by the user to the wireless transmission unit 110 through a wireless transmission technology; the wireless transmission unit 110 is placed inside the aquarium for receiving a command input by the user and forwarding.

In a specific implementation, the wireless transmission unit 110 may send various commands input by the user to the wireless transmission unit 110 through a wireless transmission technology such as an infrared transmission technology, a WIFI transmission technology, a Bluetooth transmission technology, or the like (such as a temperature setting command, a temperature difference between day and night). Set commands, power setting commands, etc.).

Through the wireless transmission unit 110 and the wireless remote controller 111, the user can conveniently set various parameters of the exemplary intelligent heating rod without manually extending the hand into the aquarium, especially for large-sized aquariums. It is set up and can completely avoid problems such as electric shock and water pollution caused by temperature adjustment. In addition, for a large-scale aquarium group, the parameters of all aquariums can be set one by one by the same wireless remote controller 111, which further highlights the convenience.

In order to allow the user to clearly understand the various parameters of the exemplary smart heating rod for setting by the wireless remote control 111, optionally, as shown in FIG. 2G, the exemplary intelligent heating rod may further include: a liquid crystal display 112. The liquid crystal display 112 is connected to the wireless transmission unit 110 for displaying various parameter information parsed from commands input by the user, such as displaying the target temperature parsed from the temperature setting command, and parsing out from the day and night temperature difference setting command. The temperature difference and the target temperature setting standard, the target power analyzed from the power setting command, and the like.

In the process of implementing the present invention, the inventors have found that if the brightness of the backlight of the liquid crystal display 112 is the same under different circumstances, the brightness of the backlight at night will make the user feel bright and glare, and it is not suitable for observing parameter information at night, and also interferes with the fish. Class break. In view of this situation, in specific implementation, optionally, as shown in FIG. 2H, the exemplary smart heating bar may further include: a photosensitive sensor 116 that detects the light intensity of the environment in which the aquarium is located in real time; The display 112 automatically adjusts the brightness of the backlight based on the light intensity of the environment in which the aquarium is placed to ensure that the user is more comfortable viewing the parameter information during the day or night.

In order to improve the safety of the exemplary smart heating rod, optionally, as shown in FIG. 2I, the exemplary intelligent heating rod may further include: a high temperature sensor 113, an early warning unit 114, and an alarm 115. The alarm 115 may be an acousto-optic alarm 115.

The high temperature sensor 113 is used to detect the heat generation temperature of the heat generating core 101 in real time.

In a specific implementation, the high temperature sensor 113 may be disposed at a position closer to the heating core 101 to accurately detect the heat generation temperature of the heat generating core 101.

The warning unit 114 is configured to send a power-off command to the temperature control unit 102 when the heating temperature of the heating core 101 is higher than a preset maximum temperature, and trigger the alarm 115 to perform an alarm to alert the user that the intelligent heating rod is in an over-temperature state.

In the specific implementation, the preset maximum temperature can be set at the factory according to the performance of the entire intelligent heating rod to ensure that the intelligent heating rod is not damaged by over temperature.

When the temperature control unit 102 receives the power-off command, the control thyristor 103 is turned off to cause the heater core 101 to be powered off and stop generating heat.

In order to further improve the safety of the exemplary smart heating rod, the warning unit 114 may be further configured to determine the heating temperature of the heating core 101 detected by the high temperature sensor 113 in real time for a predetermined period of time (eg, 10 minutes). When the temperature rises continuously and the heating rate is greater than a predetermined rate, a power-off command is sent to the temperature control unit 102, and the alarm 115 is triggered to alert the user that the intelligent heating rod is in a dry state.

Optionally, the warning unit 114 may further determine that the temperature of the water in the aquarium detected by the water temperature sensor 105 in real time does not rise within a preset period of time (eg, 10 minutes), and the high temperature sensor in the preset period of time 113 When the heating temperature of the heating core 101 detected in real time continues to rise and the heating rate is less than a predetermined rate, the alarm 115 is triggered to alert the user that the aquarium is in a water shortage state.

At present, the conventional heating rod usually uses a pair of probes protruding from the casing to detect whether the aquarium is dehydrated or whether the heating rod is dry or burnt. However, there are many disadvantages in detecting whether the aquarium is dehydrated or whether the heating rod is dry or not. For example, the probe is liable to cause insensitivity due to electrochemical action, and it is easy to accumulate dirt outside the casing to cause inaccurate detection, and there is also a hidden danger that the internal components of the casing are broken down and leaking through the probe.

The exemplary intelligent heating rod utilizes the water body temperature detected by the water temperature sensor 105 in real time and the temperature of the heating core 101 detected by the high temperature sensor 113 in real time, and can intelligently determine whether the aquarium is dehydrated and whether the intelligent heating rod is dry or not. In the specific implementation, since the water temperature sensor 105 is disposed in the form of a seal on the top of the intelligent heating rod and is in direct contact with the water body, there is no hidden danger of leakage, the safety is high, and the detection is not accurate due to the accumulation of dirt. Case.

Optionally, the exemplary smart heating bar may further include a camera for photographing scenes in the aquarium, such as watching interesting scenes such as eating food, breeding, and the like.

In a specific implementation, the wireless transmission unit 110 can wirelessly transmit the image captured by the camera to the external device through a wireless transmission technology (such as WIFI technology, Bluetooth technology, etc.) and play it to the user.

In the specific implementation, a camera can also be configured for the camera to facilitate the camera to adjust the shooting angle. The pan/tilt can also be set as a wireless remote control type, so that the user can remotely rotate the pan/tilt to adjust the camera to a suitable shooting angle.

In a specific implementation, optionally, the smart heating bar provided by the exemplary device further includes a built-in housing and an external housing. Wherein, the built-in housing is installed inside the aquarium; the heating core and the thyristor are sealed and installed in the built-in housing; the power cable passes through the built-in housing to connect to the mains; the external housing is installed outside the aquarium; The temperature control unit is installed in the outer casing.

That is, the temperature control unit for controlling the heating power is independently disposed in an external casing to be separated from the heating core for heating and the thyristor for controlling the heating and discharging of the heating core, the external casing The body can be installed outside the aquarium to repair it in case of problems or to upgrade it according to the needs of the user.

Alternatively, the external housing containing the temperature control unit can also be applied to some existing conventional heating rods for controlling the heating power, which greatly expands the scope of use of the exemplary apparatus 1.

Embodiment 1

This embodiment is a specific implementation of the exemplary device 1.

This embodiment provides an intelligent heating rod, as shown in FIG. 3, which is a schematic diagram of the appearance of the intelligent heating rod, including: a housing 201, a heating core holder 202, a heating core 203, a high temperature sensor 204, a heat insulating layer 205, and a control circuit board ( Not shown in FIG. 3), the camera 206, the photosensor 207, the liquid crystal display 208, the infrared remote control receiving sensor 209, the sealing plug 210, the water temperature sensor 211, the power source line 212, and the infrared remote controller 213. The outer casing 201 is a columnar structure, and the bottom end is closed and the top end is open, and is made of high-strength heat-resistant glass or other heat-resistant material. A sealing plug 210 is located at the top end of the outer casing 201 for sealing the outer casing 201. The outer casing 201 serves as the outermost layer structure of the entire intelligent heating rod, and has a good waterproof effect on the inside, and has a good heat conduction effect to the outside. The heating core holder 202 is located at a position near the bottom end of the outer casing 201, and is made of a high temperature resistant fluoroplastic material or other high temperature resistant material, and can fix, limit, shockproof, cushion, etc. the heating core 203. The heating core 203 is mounted on the heating core holder 202 and disposed along the inside of the housing 201, and is made of a silicon carbide ceramic material, and has high heat conversion efficiency and good heat radiation performance. The high temperature sensor 204 is mounted adjacent to the heating core 203 for detecting the heating temperature of the heating core 203 and transmitting a correlation signal. The heat insulation layer 205 divides the interior of the entire outer casing 201 into upper and lower chambers. The lower chamber includes only the heating core holder 202, the heating core 203 and the high temperature sensor 204, and the remaining components are located in the upper chamber, and the heat insulation layer The 205 is made of a heat-resistant heat-insulating material, and the heat-insulating layer 205 is disposed on the one hand to prevent the heat generated by the heat-generating core 203 from affecting the control circuit board, the camera 206, the photosensitive sensor 207, the liquid crystal display 208, the infrared remote-receiving receiving sensor 209, The operation of components such as the water temperature sensor 211 and the like, in order to fix and dampen the heating core 203 and the control circuit board located on both sides thereof. The portion of the outer casing 201 in the upper compartment is transparent for the user to view the camera 206 and the liquid crystal display 208, and to facilitate the photosensitive sensor 207 to detect ambient light intensity and to facilitate the infrared remote control receiving sensor 209 to receive infrared signals. The camera 206 is used to photograph scenes in the aquarium. Photosensor 207 is used to detect the intensity of light in the environment in which the aquarium is located and to transmit relevant signals. The infrared remote control receiving sensor 209 and the infrared remote controller 213 transmit data through an infrared signal. The water temperature sensor 211 is sealed in a glass tube (or metal tube) having an outer diameter of about 4 mm. The glass tube (or metal tube) is embedded in the sealing plug 210 and is in direct contact with the water body in the aquarium to accurately detect the temperature of the water body. . The power cord 212 passes through the sealing plug 210 to connect to the mains. The control circuit board is installed on the upper part of the heat insulation layer 205. The control circuit board is equipped with a smart chip, a switching power supply circuit, a heating core 203 driving circuit, etc., and the control circuit board also links the water temperature sensor 211, the high temperature sensor 204, and the camera. 206, photosensitive sensor 207, liquid crystal display 208, infrared remote control receiving sensor 209, etc., to receive the relevant signals transmitted by the various components. Among them, the smart chip integrates a temperature control unit, a temperature setting unit, a day and night monitoring unit, a day and night temperature difference setting unit, a power setting unit, an early warning unit, and the like. The switching power supply circuit is used to control the power on and off of the power line 212. The heater core 203 driving circuit includes thyristors that respectively connect the temperature control unit, the heater core 203, and the power source line 212. The infrared remote control receiving sensor 209 receives various signals transmitted from the infrared remote controller 213 and transmits them to the smart chip. When the signal sent by the infrared remote controller 213 includes a temperature setting command, the temperature setting unit parses the target temperature from the temperature setting command, and the temperature control unit controls the heating core 203 according to the target temperature and the actual temperature of the water body in the aquarium. Get fever.

The day and night monitoring unit relies on the light sensor 207 to signal to determine the day and night condition of the environment in which the aquarium is located; when the signal sent by the infrared remote controller 213 includes the day and night temperature difference setting command, the day and night temperature difference setting unit is parsed from the day and night temperature difference setting command. The temperature difference and the standard temperature setting standard, the temperature control unit controls the heating core 203 according to the temperature difference, the standard temperature setting standard, and the day and night conditions of the environment in which the aquarium is placed. Get fever. When the signal sent by the infrared remote controller 213 includes a power setting command, the power setting unit parses the target power from the power setting command; the temperature control unit controls the heating power of the smart heating rod to be maintained below the target power.

The early warning unit includes an overcurrent protection device, an overvoltage protection device, etc., and receives signals sent by the high temperature sensor 204, the water temperature sensor 211, etc., determines whether the intelligent heating rod is in an over temperature state, a dry burning state, and determines whether the aquarium is in a water shortage state. , timely send a power-off command to the temperature control unit.

The liquid crystal display 208 has an automatic backlight adjustment function and includes three display areas, respectively:

The display area 1, under the control of the infrared remote controller 213, can display the real-time temperature of the water temperature, or the target temperature set by the user through a command, wherein the display can be performed using a standard such as Celsius °C or Fahrenheit °F, and the displayed temperature is minimum. Can be accurate to 0.1 ° C or 0.1 ° F.

The display area 2, under the control of the infrared remote controller 213, can display the heating power of the heating core 203, or the target power set by the user through the command, wherein the target power can be displayed according to the percentage of the full power, such as displaying 50%. Indicates that the target power is 50% of full power, and the displayed power can be as small as 1%.

The display area 3, under the control of the infrared remote controller 213, can display the temperature difference and the target temperature setting standard set by the user through the command, wherein the target temperature setting standard can indicate the target temperature in the form of a number or an English letter. For daytime or nighttime settings, for example, a display of "1" or "day" means for daytime settings, and a display of "0" or "night" means that for nighttime settings, the displayed temperature difference can be as small as 0.5 °C.

The infrared remote control 213 is provided with three buttons, which are respectively:

Mode key “M”, press this button continuously, in “target temperature setting”, “target power setting”, “temperature difference setting”, “target temperature setting standard setting”, “backlight brightness setting”, “degree Celsius °C” Switch between mode and Fahrenheit °F setting";

Add the key "+" to increase the value to be set in a certain mode. After the setting is completed, the data will be automatically quit and saved after 3 seconds. The set data will not disappear after restarting after power off until the next setting. ;

Decrease button "-": used to reduce the value to be set in a certain mode. After 3 seconds of setting, it will automatically exit and save the data. The set data will not disappear after restarting after power off until the next time. Settings.

Exemplary device two

An exemplary aquarium of the present invention is described below in conjunction with the application scenario of FIG.

As shown in FIG. 1, the exemplary aquarium includes a fish tank 2 and a smart heating rod 1.

The aquarium 2 can be made of ordinary glass, tempered glass, acrylic, etc. The specific implementation of the intelligent heating bar 1 can be referred to the description in the exemplary device 1 and will not be described herein.

Exemplary device three

In view of the fact that the heating function of the conventional heating rod is single and cannot properly adjust the water temperature of the aquarium during daytime and nighttime, the exemplary apparatus 3 provides an aquarium intelligent heating rod with a day and night temperature adjustment mode for The water temperature of the aquarium is appropriately adjusted to simulate the temperature difference between day and night in the natural water environment. The exemplary device 3 will be described in detail below with reference to the accompanying drawings.

It should be noted that the "reference operating temperature of the heat generating device" as referred to in the third exemplary device means that when the water temperature in the aquarium is lower than the reference working temperature, the heating device of the heating rod starts to work, and vice versa. When the water temperature in the aquarium is higher than the reference operating temperature, the heating device of the heating rod stops working.

4 is a structural block diagram of the exemplary device 3. The exemplary device is a smart heating bar with a day and night temperature adjustment mode. As shown in FIG. 4, the intelligent heating bar includes the following parts: a conduction switch 1, a power supply line 2, a heat generating device 3, a water temperature detecting device 4, and a temperature. The adjusting device 5, the switch control device 6, the day and night monitoring device 7, and the casing 8 (not shown in Fig. 4). The water temperature detecting device 4 is for detecting the temperature of the water in the aquarium in real time. The day and night monitoring device 7 is used to monitor the day and night conditions of the environment in which the aquarium is located. The two ends of the conduction switch 1 are respectively connected to the power supply line 2 and the heat generating device 3. When the conduction switch 1 is closed, the power supply line 2 is electrically connected to the heat generating device 3, and the heating device 3 is powered on to start working, and when the conduction switch is turned on, When the battery is disconnected, the power supply line 2 is disconnected from the heat generating device 3, and the heat generating device 3 is stopped. The switch control device 6 is connected to the water temperature detecting device 4, the temperature adjusting device 5 and the conduction switch 1 respectively for controlling the conduction switch 1 to be disconnected by comparing the temperature of the water in the aquarium with the reference operating temperature of the heat generating device closure. The temperature adjusting device 5 is connected to the day and night monitoring device 7 for adjusting the reference working temperature of the heating device according to the day and night conditions of the environment in which the aquarium is placed, thereby achieving the purpose of making the aquarium have different water temperature balance points in the day and night. Specifically, when the water temperature in the aquarium is lower than the reference working temperature of the heat generating device, the heating device of the heating rod starts to work, and when the water temperature in the aquarium is higher than the reference working temperature, the heating device of the heating rod The work will stop, so that the water temperature of the aquarium is kept near the reference operating temperature of the heating device. For the aquarium, the reference operating temperature of the heating device is its water temperature equilibrium point. In the exemplary apparatus 3, the reference operating temperature of the heat generating device is adjusted by the temperature adjusting device 5 to vary with day and night, so that the aquarium maintains different water temperature temperatures in the day and night. For example, in order to simulate the change of the temperature difference between day and night in the water environment in which tropical fish live in nature (usually the nighttime temperature will decrease by 1-3 °C than the daytime temperature), the reference working temperature of the nighttime heating device can be adjusted to decrease by 1-3 °C compared with the daytime. The water temperature balance point of the aquarium is reduced by 1-3 °C compared with the water temperature balance point of the daytime aquarium (for example, the water temperature balance point of the aquarium during the day is 20 ° C, and the water temperature balance point of the night aquarium is 17 ° C to 19 ° C).

In the smart heating rod, the conduction switch 1, the heat generating device 3, the temperature adjusting device 5, the switch control device, and the day and night monitoring device 7 are all disposed inside the casing 8. In a specific implementation, the conduction switch 1, the water temperature detecting device 4, the temperature adjusting device 5, the switch control device 6, and the day and night monitoring device 7 in the exemplary device may adopt an electronic device (such as a digital chip) or a simulation capable of implementing a corresponding function. The circuit implementation is not specifically limited in this exemplary device 3.

The exemplary device provided by the exemplary device 3 is capable of monitoring the day and night conditions of the environment in which the aquarium is located, and adjusting the water temperature balance point in the aquarium according to the day and night changes, thereby simulating the variation of the day and night temperature difference in the natural water environment, compared with the current tradition. The heating rod is more suitable for cultivating the biological rhythm of the fish, helping to promote the growth of fish in the aquarium and avoiding the disease of the fish.

Embodiment 1

This embodiment is a specific implementation manner of the exemplary device 3. In the present embodiment, the conduction switch 1, the water temperature detecting device 4, the temperature adjusting device 5, the switch control device 6, and the day and night monitoring device 7 are implemented by an analog circuit capable of realizing a corresponding function.

The embodiment provides an aquarium intelligent heating rod with a day and night temperature adjustment mode, and the intelligent heating rod includes: a conduction switch 1, a power line 2, a heat generating device 3, a water temperature detecting device 4, a temperature adjusting device 5, and a switch control device. 6. Day and night monitoring device 7, outer casing 8. FIG. 5 is a schematic diagram showing the circuit connection of the conduction switch 1, the power supply line 2, the heat generating device 3, the water temperature detecting device 4, the temperature adjusting device 5, the switch control device 6, and the day and night monitoring device 7 in the intelligent heating rod. As shown in FIG. 5, the water temperature detecting device 4 includes a negative temperature coefficient thermistor RT and a first step-down resistor RJ1. The temperature adjusting device 5 includes an eighth step-down resistor RJ8 and a second step-down resistor RJ2. The device 3 includes a first resistance wire RL1; the conduction switch 1 includes a first photo-controlled thyristor U1; the switch control device 6 includes a first comparator A1, a first current limiting resistor RX1; and the day and night monitoring device 7 includes a photosensitive Resistor RG, a third step-down resistor RJ3, a fourth step-down resistor RJ4, a fifth step-down resistor RJ5, a second comparator A2, a second current limiting resistor RX2, a transistor T1, a sixth drop Voltage resistor RJ6. The negative temperature coefficient thermistor RT, the first step-down resistor RJ1, the eighth step-down resistor RJ8, and the second step-down resistor RJ2 form a bridge, wherein the negative temperature coefficient thermistor RT and the eighth step-down resistor RJ8 are high. The potential terminal is connected to the power supply voltage, and the low-voltage terminals of the first step-down resistor RJ1 and the second step-down resistor RJ2 are grounded. The negative input terminal of the first comparator A1 is connected to the low potential terminal Ve of the negative temperature coefficient thermistor RT, the positive input terminal is connected to the low potential terminal Va of the eighth step-down resistor RJ8, and the output terminal is connected through the first current limiting resistor RX1. The positive input end of a light-controlled thyristor U1; the negative input end of the first photo-controlled thyristor U1 is grounded, and the two output ends are respectively connected to the first resistance wire RL1 and the power line 2 (zero line N and fire line L). The photoresistor RG, the third step-down resistor RJ3, the fourth step-down resistor RJ4, and the fifth step-down resistor RJ5 form a bridge, wherein the high-potential terminal of the photoresistor RG and the third step-down resistor RJ3 is connected to the power supply voltage, and the fourth The low potential terminals of the step-down resistor RJ4 and the fifth step-down resistor RJ5 are grounded. The negative input terminal of the second comparator A2 is connected to the low potential end of the photoresistor RG, the positive input terminal is connected to the low potential end of the third step-down resistor RJ3, and the output terminal is connected to the base of the transistor T1 through the second current limiting resistor RX2. The collector of the transistor T1 is connected to the high potential terminal Vd of the second step-down resistor RJ2 (or the low potential terminal Va of the eighth step-down resistor RJ8) through the sixth step-down resistor RJ6, and the emitter is grounded.

The working principle of the intelligent heating rod provided by this embodiment is as follows:

(1) When the water temperature in the aquarium is at the water temperature equilibrium point, the voltage of the low potential terminal Ve of the negative temperature coefficient thermistor RT and the voltage of the high potential terminal Vd of the second step resistor RJ2 (ie, the eighth step resistor) The voltage of the low potential terminal Va of RJ8 is equal. At this time, the positive and negative input terminals of the first comparator A1 are equal in level, the output terminal of the first comparator A1 outputs a low level, and the first photo-controlled thyristor U1 is not activated. The first resistance wire RL1 is in a power-off state.

(2) When the water temperature in the aquarium is lower than the water temperature equilibrium point, the resistance value of the negative temperature coefficient thermistor RT increases, and the voltage of the low potential end Ve decreases accordingly. At this time, the first comparator A1 The level of the negative input terminal is lower than the level of the positive input terminal, the output end of the first comparator A1 outputs a high level, the first light control thyristor U1 is activated, and the first resistance wire RL1 is energized and starts heating until the aquarium is inside. When the water temperature reaches the water temperature balance point again, the positive and negative input terminals of the first comparator A1 are equal in level, and the first resistance wire RL1 stops working.

(3) When the environment in which the aquarium is located is in the daytime state, the level of the negative input terminal of the second comparator A2 is higher than the level of the positive input terminal, the second comparator A2 is negatively biased, and the output is low level, the transistor T1 It is in the cutoff state.

(4) When the environment in which the aquarium is located is excessive from the daytime state to the night state, the resistance value of the photoresistor RG gradually increases, and the voltage at the low potential end of the photoresistor RG decreases, and the resistance value of the photoresistor RG increases. When reaching a certain threshold (completely entering the night state), the level of the negative input terminal of the second comparator A2 is lower than the level of the positive input terminal, the output terminal of the second comparator A2 is forward biased, and the output is high level, the transistor T1 The saturation is turned on, so that the voltage of the high potential terminal Vd of the second step-down resistor RJ2 (the voltage of the low potential terminal Va of the eighth step-down resistor RJ8) drops, that is, the level of the positive input terminal of the first comparator A1 decreases, which A change will cause the first comparator A1 to be forward biased (this is the condition that the first photo-controlled thyristor U1 is turned on, the first resistance wire RL1 is energized and heated), and the level of the negative input terminal is also lowered. That is to say, when the water temperature in the aquarium is at the water temperature equilibrium point, the night state is lower than the daytime state, the voltage at the low potential end Ve of the night state is lower, and the resistance value of the negative temperature coefficient thermistor RT in the night state is more Large, that is, the temperature of the water in the dark state Lower point lower than the daytime temperature equilibrium state.

The intelligent heating rod provided in this embodiment can monitor the day and night conditions of the environment in which the aquarium is located, and adjust the conditions required for energizing the heating device 3 according to the day and night changes, that is, adjust the water temperature balance point in the aquarium, thereby simulating the day and night of the natural water environment. Temperature difference changes compared to current traditions The heating rod is more suitable for cultivating the biological rhythm of the fish, helping to promote the growth of fish in the aquarium and avoiding the disease of the fish.

Embodiment 2

This embodiment is another specific implementation of the exemplary device 3.

This embodiment provides another aquarium intelligent heating bar with a day and night temperature adjustment mode, the smart heating bar includes: a conduction switch 1, a power line 2, a heat generating device 3, a water temperature detecting device 4, a temperature adjusting device 5, and a switch control The device 6, the day and night monitoring device 7, and the outer casing 8. FIG. 6 is a schematic diagram showing the circuit connection of the conduction switch 1, the power supply line 2, the heat generating device 3, the water temperature detecting device 4, the temperature adjusting device 5, the switch control device 6, and the day and night monitoring device 7 in the intelligent heating rod.

The difference between the embodiment and the first embodiment is that, in this embodiment, the heat generating device 3 further includes two second resistance wires RL2-1 and RL2-2; the conduction switch 1 further includes two second light controls. Thyristors U2-1 and U2-2; the switch control device 6 further includes two third comparators A3-1 and A3-2, two third current limiting resistors RX3-1 and RX3-2; the temperature adjusting device 5 includes The two seventh step-down resistors RJ7-1 and RJ7-2 are included; the seventh step-down resistors RJ7-1 and RJ7-2 are connected in series to the low potential terminal Va of the eighth step-down resistor RJ8 and the second step-down resistor RJ2. Between the potential terminals Vd.

The second resistance wire RL2-1, the second light control thyristor U2-1, the third comparator A3-1, the third current limiting resistor RX3-1, and the seventh step-down resistor RJ7-1 correspond to each other and constitute a first heat generation The second resistance wire RL2-2, the second light control thyristor U2-2, the third comparator A3-2, the third current limiting resistor RX3-2, the seventh step-down resistor RJ7-2 correspond to each other, and constitute the first Two fever groups.

In the first heating group, the positive input terminal of the third comparator A3-1 is connected to the low potential terminal Vb of the seventh step-down resistor RJ7-1, and the negative input terminal is connected to the low potential terminal Ve of the negative temperature coefficient thermistor RT, The output end is connected to the positive input end of the second photo-controlled thyristor U2-1 through the third current limiting resistor RX3-1; the negative input end of the second photo-controlled thyristor U2-1 is grounded, and the two output ends are respectively connected to the second resistance wire RL2 -1 and power line 2 (zero line N and fire line L).

In the second heating group, the positive input terminal of the third comparator A3-2 is connected to the low potential terminal Vc of the seventh step-down resistor RJ7-2, and the negative input terminal is connected to the low potential terminal Ve of the negative temperature coefficient thermistor RT, The output end is connected to the positive input end of the second photo-controlled thyristor U2-2 through the third current limiting resistor RX3-2; the negative input end of the second photo-controlled thyristor U2-2 is grounded, and the two output ends are respectively connected to the second resistance wire RL2 -2 and power line 2 (zero line N and fire line L).

In this embodiment, the eighth step-down resistor RJ8, the seventh step-down resistor RJ7-1, RJ7-2, and the first comparator A1 and the third comparator A3-1, A3-2 form a step comparator, the voltage gradient It is about 15 mv, and the temperature change per 15 mv is 0.5 °C.

Assume that the water temperature balance point in the daytime state is T _day and the real-time water temperature of the aquarium is T _time , as shown in Table 1 below:

State 1, when T _time ≥ T _day , the voltage of the low potential terminal Ve of the negative temperature coefficient thermistor RT is greater than the voltage of the low potential terminal Va of the eighth step resistor RJ8, and is also greater than the seventh step resistor RJ7-1 And the voltage of the low potential end of RJ7-2, at this time, the first comparator A1, the third comparator A3-1, A3-2 are both negatively biased, the first photo-controlled thyristor U1, the second photo-controlled thyristor U2-1 U2-2 is not activated, and the first resistance wire RL1 and the second resistance wires RL2-1 and RL2-2 are both in a power-off state.

State 2, when T _day -0.5 ° C ≤ T _time <T _day , the voltage of the low potential terminal Ve of the negative temperature coefficient thermistor RT is smaller than the voltage of the low potential terminal Va of the eighth step resistor RJ8, which is greater than the seventh drop. The voltage of the low potential terminal of the voltage resistors RJ7-1 and RJ7-2, at this time, the first comparator A1 is forward biased, the third comparators A3-1, A3-2 are negatively biased, and the first photo-controlled thyristor U1 is activated. The first resistance wire RL1 is in an energized state and starts heating, the second photo-controlled thyristors U2-1, U2-2 are not activated, and the second resistance wires RL2-1, RL2-2 are in a power-off state. In this state, the heat generating device 3 is heated at 1/3 of the full power.

State 3, when T _day -1 ° C ≤ T _time < T _day -0.5 ° C, the voltage of the low potential terminal Ve of the negative temperature coefficient thermistor RT is smaller than the voltage of the low potential terminal Va of the eighth step resistor RJ8, It is smaller than the voltage of the low potential terminal of the seventh step-down resistor RJ7-1, but larger than the voltage of the low potential terminal of the seventh step-down resistor RJ7-2, and the first comparator A1 and the third comparator A3-1 are forward biased at this time. The third comparator A3-2 is negatively biased, the first photo-controlled thyristor U1 and the second photo-controlled thyristor U2-1 are activated, and the first resistance wire RL1 and the second resistance wire RL2-1 are energized and start to heat. The second photo-controlled thyristor U2-2 is not activated, and the second resistance wire RL2-2 is in a power-off state. In this state, the heat generating device 3 is heated at 2/3 of the full power.

State 4, when the real-time water temperature of the aquarium T _time <T _day -1 °C, the voltage of the low potential end Ve of the negative temperature coefficient thermistor RT is smaller than the voltage of the low potential end Va of the eighth step-down resistor RJ8, and is also smaller than The voltage of the low potential terminal of the seventh step-down resistor RJ7-1, RJ7-2, at this time, the first comparator A1, the third comparator A3-1, A3-2 are all forward biased, the first photo-controlled thyristor U1 The second light-controlled thyristors U2-1 and U2-2 are activated, and the first resistance wire RL1 and the second resistance wires RL2-1 and RL2-2 are both energized and start to heat. In this state, the heat generating device 3 is heated at full power.

Table 1

Status number

Water temperature

Voltage situation

Comparator output

Electric wire through power failure

The intelligent heating rod provided by the embodiment can not only monitor the day and night conditions of the environment in which the aquarium is located, but also adjust the conditions required for energizing the heating device 3 according to the day and night changes, thereby simulating the temperature difference between the day and night in the natural water environment, and at the same time, the heating device 3 points are set into three heating groups, and each heating group can be heated individually or in combination. By this design, the heating device 3 is heated at 1/3, 2/3 or 3/3 of full power, thereby realizing The stepwise change of water temperature, this design can effectively reduce fluctuations and overshoot of water temperature, which is conducive to the healthy growth of fish.

It should be noted that, in this embodiment, more heat generating groups may be set according to actual conditions, thereby obtaining more levels of water temperature change effects. The number of heat generating groups in the three pairs of intelligent heating bars of the exemplary device is not specifically limited. That is, the three heat generating groups in this embodiment are only specific embodiments of the exemplary device 3, and are not intended to limit the protection scope of the exemplary device 3, and within the spirit and principle of the exemplary device 3, Setting more or fewer heat generating groups should be included in the scope of this exemplary device 3.

Embodiment 3

This embodiment is still another specific embodiment of the exemplary device 3. In this embodiment, the conduction switch 1, the water temperature detecting device 4, the temperature adjusting device 5, the switch control device 6, and the day and night monitoring device 7 are implemented by using an electronic device (such as a digital chip) capable of implementing a corresponding function.

The embodiment provides another aquarium intelligent heating bar with a day and night temperature adjustment mode, the smart heating bar includes: a conduction switch 1, a power line 2, a heat generating device 3, a water temperature detecting device 4, a temperature adjusting device 5, and a switch control The device 6, the day and night monitoring device 7, and the outer casing 8.

The water temperature detecting device 4 includes a water temperature sensor that detects the temperature of the water in the aquarium in real time and generates a water temperature detecting signal for the reaction water temperature.

The day and night monitoring device 7 includes a light sensor to generate a day and night monitoring signal for reacting to the day and night condition by detecting the light intensity of the environment in which the aquarium is located; or the day and night monitoring device 7 may further include a clock chip for distinguishing day and night and generating day and night monitoring by timing. signal.

The temperature adjusting device 5 acquires the day and night monitoring signal, and generates a temperature setting signal for setting the reference operating temperature of the heating device 3 in the day and night state according to the day and night monitoring signal. For example, the day and night monitoring signal output by the day and night monitoring device 7 is at a high level. a signal and a low level signal, wherein a high level signal indicates a daytime state, a low level signal indicates a nighttime state, and the temperature adjustment device 5 is a logic circuit whose output temperature setting signal is also divided into a high level signal and a low level. a level signal, wherein the high level signal indicates that the reference operating temperature of the heat generating device 3 during the day is 20 ° C, and the low level signal indicates that the reference operating temperature of the heat generating device 3 at night is 17 ° C; when the logic of the temperature adjusting device 5 When the circuit receives the high level signal outputted by the day and night monitoring device 7, the circuit outputs a high level signal, and when the logic circuit of the temperature adjusting device 5 receives the low level signal output by the day and night monitoring device 7, it outputs a low level signal.

The switch control device 6 includes a digital comparator that controls the on/off switch 1 to open or close by comparing the water temperature detection signal with the temperature setting signal, thereby controlling the operating state of the heat generating device 3.

Compared with the intelligent heating rod in the form of analog circuit of the first embodiment and the second embodiment, the embodiment is an intelligent heating rod in the form of a digital circuit, wherein the water temperature detecting device 4, the temperature adjusting device 5, the switch control device 6, and the day and night monitoring The digital heating signal is transmitted between the devices 7. Compared with the intelligent heating rods of the first embodiment and the second embodiment, the intelligent heating rod provided in the embodiment has a simpler and more compact hardware structure, smaller occupied space and better control precision. high.

Embodiment 4

This embodiment is a specific implementation manner of the exemplary device 3.

As shown in FIG. 7( a ), a front view of the smart heating rod includes: a conduction switch 1 (not shown in FIG. 7( a )), a power supply line 2 , a heat generating device 3 , and a water temperature detecting device 4 . The temperature adjusting device 5 (not shown in Fig. 7(a)), the switch control device 6 (not shown in Fig. 7(a)), the day and night monitoring device 7 (not shown in Fig. 7(a)), and the outer casing 8. The top end of the outer casing 8 is open and closed at the bottom end.

The conduction switch 1, the heat generating device 3, the temperature adjusting device 5, the switch control device 6, and the day and night monitoring device 7 are all disposed inside the casing 8.

Figure 7 (b) is a top cross-sectional view of the smart heating rod, as shown in Figure 7 (b), the opening of the top end of the outer casing 8 is sealed with a sealing plug 9 to isolate the inside of the outer casing 8 from the outside (to achieve waterproof effect) ), the power cord 2 passes through the sealing plug 9.

The water temperature detecting device 4 is sealed in a heat transfer column 10 which is embedded in the sealing plug 9 and is in direct contact with the water in the aquarium. The heat-conducting column 10 has good thermal conductivity and is in direct contact with the water in the aquarium, which facilitates the accurate measurement of the water temperature by the water temperature detecting device 4.

Figure 7 (c) is a bottom view of the smart heating rod, as shown in Figure 7 (c), in order to reduce the footprint of the smart heating rod, optionally, the outer casing 8 is designed as an ultra-thin rectangular parallelepiped type, Its cross section is rectangular.

The specific embodiments, the purpose, the technical solution and the beneficial effects of the exemplary device 3 are further described in detail. It should be understood that the above description is only a specific embodiment of the exemplary device three, and It is not intended to limit the scope of protection of the exemplary device 3, and any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the exemplary device 3, should be included in the scope of protection of the present exemplary device 3. within.

Exemplary device four

In view of the fact that the conventional heating rod must be temperature-adjusted by extending the hand into the aquarium, which is not convenient, and is easy to cause defects such as fish growth and user safety, the exemplary apparatus 4 provides an aquarium intelligent heating rod. The temperature adjustment function of the heating rod is realized by means of wireless remote control.

It should be noted that the "reference operating temperature of the heat generating device" as referred to in the fourth exemplary device means that when the water temperature in the aquarium is lower than the reference working temperature, the heating device of the heating rod starts to work, and vice versa. When the water temperature in the aquarium is higher than the reference operating temperature, the heating device of the heating rod stops working.

FIG. 8 is a structural block diagram of the exemplary device 4. The exemplary device is a wireless temperature-controlled aquarium intelligent heating rod. As shown in FIG. 8, the intelligent heating rod includes the following parts: a conduction switch 1, a power line 2, a heat generating device 3, a wireless receiving device 4, and a wireless device. The remote control device 5, the water temperature detecting device 6, the temperature setting device 7, the switch control device 8, and the casing 9 (not shown in Fig. 8).

Both ends of the conduction switch 1 are connected to the power supply line 2 and the heat generating device 3, respectively. When the conduction switch 1 is closed, the power supply line 2 is electrically connected to the heat generating device 3, the heat generating device 3 is turned on to start the operation, and when the conduction switch 1 is turned off, the power supply line 2 is disconnected from the heat generating device 3, and the heat is generated. Device 3 stops working.

The water temperature detecting device 6 is for detecting the temperature of the water in the aquarium in real time.

The wireless receiving device 4 receives the wireless signal transmitted by the wireless remote control device 5 by wireless transmission.

In a specific implementation, the wireless receiving device 4 and the wireless remote control device 5 can adopt the current common wireless transmission technology. For example, the wireless receiving device 4 includes an infrared receiving diode, and the wireless remote control device 5 includes an infrared transmitting diode. The wireless signal is an infrared signal; or, the wireless receiving device 4 includes a Bluetooth receiver, the wireless remote control device 5 includes a Bluetooth transmitter, and the wireless signal is a Bluetooth signal; or the wireless receiving device 4 includes a WiFi receiver, and the wireless remote control device 5 Including a WiFi transmitter, the wireless signal is a WiFi signal.

The temperature setting device 7 is connected to the wireless receiving device 4, acquires a temperature setting signal, sets the reference operating temperature of the heat generating device 3, and further functions to wirelessly adjust the temperature of the heating rod.

Specifically, when the water temperature in the aquarium is lower than the reference working temperature of the heat generating device 3, the heating device 3 of the heating rod starts to work, and when the water temperature in the aquarium is higher than the reference working temperature, the heating rod is heated. The heat generating device 3 is stopped, so that the water temperature of the aquarium is maintained near the reference operating temperature of the heat generating device 3. For the aquarium, the reference operating temperature of the heat generating device 3 is its water temperature equilibrium point.

In the fourth exemplary device, when the user needs to adjust the temperature balance point of the aquarium by adjusting the temperature of the heating rod, the wireless remote control device 5 only needs to be operated to send a wireless signal to the wireless receiving device 4, and the temperature setting device 7 The reference operating temperature of the heat generating device 3 is adjusted to vary with the wireless signal so that the aquarium maintains different water temperature temperatures.

The switch control device 8 is connected to the water temperature detecting device 6, the temperature setting device 7, and the conduction switch 1, respectively, for controlling the conduction switch 1 to be turned off by comparing the temperature of the water in the aquarium and the reference operating temperature of the heat generating device 3 closure.

Among the smart heating bars, the conduction switch 1, the heat generating device 3, the wireless receiving device 4, the temperature setting device 7, and the switch control device 8 are all disposed inside the casing 9.

In a specific implementation, the conduction switch 1, the water temperature detecting device 6, the temperature setting device 7, the switch control device 8, the wireless receiving device 4, and the wireless remote control device 5 in the exemplary device may employ electronic devices capable of implementing corresponding functions ( This exemplary device 4 does not specifically limit this as implemented by a digital chip or an analog circuit.

With the heating rod provided by the exemplary device 4, the user only needs to operate the wireless remote control device 5 to complete the temperature adjustment work without extending the hand into the aquarium, which is very convenient and does not bring the bacterial virus into the aquarium. The harmful substances cause pollution to the water body and avoid the danger of electric shock to the user. For the large-scale aquarium group, the temperature of each aquarium can be adjusted one by one by the same wireless remote control device 5, which is more convenient.

Embodiment 1

This embodiment is a specific implementation of the exemplary device 4. In the present embodiment, the conduction switch 1, the water temperature detecting device 6, the temperature setting device 7, the switch control device 8, and the wireless receiving device 4 are realized by an analog circuit capable of realizing a corresponding function.

The embodiment provides a wireless temperature control aquarium intelligent heating bar, the smart heating bar includes: a conduction switch 1, a power line 2, a heat generating device 3, a wireless receiving device 4, a wireless remote control device 5, and a water temperature detecting device 6, Temperature setting device 7, switch control device 8, and housing 9.

In this embodiment, the wireless remote control device 5 may be any existing home appliance infrared remote controller, as long as it is a remote controller capable of transmitting an infrared signal, and the exemplary device 4 does not specifically limit this.

FIG. 9 is a schematic diagram showing the circuit connection of the conduction switch 1, the heat generating device 3, the water temperature detecting device 6, the temperature setting device 7, the switch control device 8, and the wireless receiving device 4 in the intelligent heating rod.

As shown in FIG. 9, the wireless receiving device 4 includes an infrared receiving diode DH, a PNP type transistor T1, an NPN type transistor T2, a first capacitor C1, and a fifth step-down resistor RJ5.

Wherein, the emitter of the PNP type transistor T1 is connected to the power supply voltage Vcc, the collector is connected to one plate of the first capacitor C1, the base is connected to the collector of the NPN type transistor T2; the emitter of the NPN type transistor T2 is connected to the fifth step-down resistor The high potential end of RJ5 is connected to the input end of the infrared receiving diode DH; the output end of the diode DH is connected to the power supply voltage Vcc; the other electrode of the first capacitor C1 is grounded; and the low potential end of the fifth step-down resistor RJ5 is grounded. The PNP type transistor T1 and the NPN type transistor T2 form an amplifier for amplifying the wireless signal received by the infrared receiving diode DH.

The temperature setting device 7 includes a counter DJ, a decoder DY, 16 diodes DA-0 to DA-15, 16 fourth step-down resistors RJ4-0 to RJ4-15, and 16 third step resistors RJ3. -0 to RJ3-15, 16 LEDs LED-0 to LED-15, and a second step-down resistor RJ2.

The counter DJ is a 4-bit counter of the 74LS161 type. The CP pin counts once on each rising edge, and its Q1 to Q3 pins count from 0000 to 1111. The CP pin of the counter DJ is respectively connected to the collector of the PNP type transistor T1 and the emitter of the NPN type transistor T2 to receive the amplified wireless signal, and the Q1 to Q3 pins are connected to the input terminal of the decoder DY.

The decoder DY is a C300 type 4 to 16 line decoder with 16 output pins Q0 to Q15, which can convert the output signal of the counter DJ into 16 independent signals, each corresponding to 18 ° C to 33 ° C. Any one of the temperatures.

Output pins Q0 to Q15, diodes DA-0 to DA-15, fourth step-down resistors RJ4-0 to RJ4-15, third step-down resistors RJ3-0 to RJ3-15, and LEDs of the decoder DY -0~LED-15 one-to-one correspondence, and the output pin of the decoder DY, the diode DA, the fourth step-down resistor RJ4, the third step-down resistor RJ3, and the LEDs of the one-to-one decoder constitute a step-down group A total of 16 step-down groups are formed, and the resistance values of the fourth step-down resistor RJ4 in each step-down group are different, so that each of the step-down groups respectively corresponds to 16 different temperatures in the range of 18 ° C to 33 ° C.

For example, as shown in FIG. 9, in a step-down group, the output pin Q0 of the decoder DY is respectively connected to the input terminal of the diode DA-0 and the high potential terminal of the third step-down resistor RJ3-0; the diode DA-0 The output terminal is connected to the high potential end of the fourth step-down resistor RJ4-0; the input end of the LED LED-0 is connected to the low potential end of the third step-down resistor RJ3-0, and the output terminal is grounded. The connection relationship between the components in the other buck groups is similar, and will not be described here.

The low potential terminals of all the fourth step-down resistors RJ4-0 to RJ4-15 are connected to the high potential terminal of the second step-down resistor RJ2; the low potential terminal of the second step-down resistor RJ2 is grounded.

When the output signal of the counter DJ is corresponding to a temperature of 18 ° C to 33 ° C, the voltage drop group corresponding to the temperature is energized, and the LED of the voltage drop LED in the step group emits light, and the user can observe the LED light that is emitting light. Know the temperature setting. In order to facilitate the user's observation, a temperature value label with a hollow design can be set on the intelligent heating rod, and each LED LED is installed in the hollow of the temperature value label to serve as a temperature indication.

FIG. 12 is an operation state of the light-emitting diodes LED-0 to LED-15 in the counter DJ (74LS161), the decoder DY (C300), and the step-down group corresponding to different temperature setting values in the embodiment.

The water temperature detecting device 6 includes a negative temperature coefficient thermistor RT and a first step-down resistor RJ1. wherein the high temperature terminal of the negative temperature coefficient thermistor RT is connected to the power supply voltage, and the low potential terminal is connected to the first stepping resistor RJ1. The high potential end; the low potential end of the first step-down resistor RJ1 is grounded.

The heat generating device 3 includes a first resistance wire RL1. The turn-on switch 1 includes a first photo-controlled thyristor U1. The switch control device 8 includes a first comparator A1 and a first current limiting resistor RX1.

The negative input terminal of the first comparator A1 is connected to the low potential terminal Ve of the negative temperature coefficient thermistor RT, and the positive input terminal is connected to the high potential terminal Vd of the second step-down resistor RJ2 (or each fourth step-down resistor RJ4-0~) RJ4-15 low potential terminal Va), the output terminal is connected to one input end of the first photo-controlled thyristor U1 through the first current limiting resistor RX1; the other input end of the first photo-controlled thyristor U1 is grounded, and the two output terminals are respectively connected The first resistance wire RL1 and the power supply line 2 (zero line N and fire line L).

(1) When the water temperature in the aquarium is at the water temperature equilibrium point, the voltage of the low potential terminal Ve of the negative temperature coefficient thermistor RT and the voltage of the high potential terminal Vd of the second step resistor RJ2 (ie, the fourth step-down resistor) The voltage of the low potential terminal Va of RJ4 is equal. At this time, the positive and negative input terminals of the first comparator A1 are equal in level, the output terminal of the first comparator A1 outputs a low level, and the first photo-controlled thyristor U1 is not activated. The first resistance wire RL1 is in a power-off state.

(3) When the output signal of the counter DJ corresponds to a temperature of 18 ° C to 33 ° C, the voltage drop group corresponding to the temperature is triggered, and the low potential end of the fourth step-down resistor RJ4 of the step-down group has a specific The level of the size, which is input to the positive input of the first comparator A1, which requires a corresponding level of input from the negative input of the first comparator A1 (low of the negative temperature coefficient thermistor RT) The potential terminal Ve) can bias the first comparator A1, that is, the first comparator A1 is biased only when the water temperature in the aquarium changes to a corresponding temperature, and the first resistance wire RL1 is Work will begin, adjusting the reference operating temperature of the heater and adjusting the water temperature balance of the aquarium.

In this embodiment, the temperature control operation can be completed by using any button of the infrared remote controller of any household appliance. In order not to affect other household appliances, the receiving sensitivity of the wireless receiving device 4 designed in this embodiment is low, wherein the first capacitor C1 acts as an integral, and the fifth step-down resistor RJ5 acts as a delay, so that the effective time of each remote button is adjusted to about 0.3 seconds, that is, each remote button requires a closer distance and sufficient time. In order to get a rising edge of the pin CP of the counter DJ, the decoder DY outputs a signal to trigger a certain buck group.

Considering the data retention after power down, optionally, as shown in FIG. 9, a pull-up capacitor F can be connected to the counter DJ.

In order to improve the anti-interference ability of the entire circuit, optionally, as shown in FIG. 9, a second capacitor C2 may be added between the low potential end of the fourth step-down resistor RJ4 of each step-down group and the ground, and The high potential end of the first step-down resistor RJ1 is connected to a plate of a third capacitor C3, and the other plate of the third capacitor C3 is grounded.

By using the intelligent heating rod provided by the embodiment, the user only needs to operate the wireless remote control device 5 to complete the temperature adjustment work without inserting the hand into the aquarium, which is very convenient, and does not bring the bacteria virus into the aquarium. Harmful substances cause pollution to water bodies and avoid the danger of electric shock to users. For large-scale aquarium groups, the same wireless remote control device 5 can be used to adjust the temperature of each aquarium one by one, which is more convenient.

It should be noted that, in this embodiment, a decoder having more output pins can be used according to actual conditions, and more step-down groups can be set to implement more temperature setting levels. The exemplary device 4 The number of the step-down group in the smart heating rod is not specifically limited, that is, the 16 step-down groups in this embodiment are only specific embodiments of the exemplary device 4, and are not used to limit the protection range of the exemplary device 4. Where more or less of the buck group is set within the spirit and principles of this exemplary device 4, it should be included within the scope of the present exemplary device 4.

Embodiment 2

This embodiment is another specific implementation of the exemplary device 4.

This embodiment provides another wireless temperature-controlled aquarium intelligent heating bar, the smart heating bar includes: a conduction switch 1, a power line 2, a heat generating device 3, a wireless receiving device 4, a wireless remote control device 5, and a water temperature detecting device 6 The temperature setting device 7, the switch control device 8, and the outer casing 9.

FIG. 10 is a schematic diagram showing the circuit connection of the conduction switch 1, the heat generating device 3, the water temperature detecting device 6, the temperature setting device 7, the switch control device 8, and the wireless receiving device 4 in the smart heating rod.

The difference between the embodiment and the first embodiment is that, in this embodiment, the heat generating device 3 further includes two second resistance wires RL2-1 and RL2-2; the conduction switch 1 further includes two second light controls. Thyristors U2-1 and U2-2; the switch control device 8 further includes two third comparators A3-1 and A3-2, two third current limiting resistors RX3-1 and RX3-2; the temperature setting device 7 includes Also includes two seventh step-down resistors RJ7-1 and RJ7-2; the seventh step-down resistors RJ7-1 and RJ7-2 are connected in series to the low potential terminal Va and the second step-down resistor RJ2 of each fourth step-down resistor RJ4 Between the high potential ends Vd.

In this embodiment, the low potential terminal of the fourth step-down resistor RJ4, the seventh step-down resistor RJ7-1, RJ7-2, and the first comparator A1 and the third comparator A3-1, A3-2 form a step comparison. The voltage gradient is about 15 mV, and the temperature change per 15 mv is 0.5 °C.

Assume that the user's heating rod reference operating temperature (ie, water temperature balance point) is T _balance and the aquarium's real-time water temperature is T _time , as shown in Table 2:

State 1, when T _time ≥ T _balance , the voltage of the low potential terminal Ve of the negative temperature coefficient thermistor RT is greater than the voltage of the low potential terminal Va of each fourth step-down resistor RJ4, and is also greater than the seventh step-down resistor RJ7- 1 and the voltage of the low potential end of RJ7-2, at this time, the first comparator A1, the third comparator A3-1, A3-2 are both negatively biased, the first photo-controlled thyristor U1, the second photo-controlled thyristor U2- 1. U2-2 is not activated, and the first resistance wire RL1 and the second resistance wires RL2-1 and RL2-2 are both in a power-off state.

State 2, when T _balance -0.5 ° C ≤ T _time < T _balance , the voltage of the low potential terminal Ve of the negative temperature coefficient thermistor RT is smaller than the low potential end Va of the fourth step-down resistor RJ4 in the currently triggered step-down group The voltage is greater than the voltage of the low potential terminal of the seventh step-down resistors RJ7-1 and RJ7-2. At this time, the first comparator A1 is forward biased, and the third comparators A3-1 and A3-2 are negatively biased. The first light-controlled thyristor U1 is activated, the first resistance wire RL1 is in an energized state and starts heating, the second light-controlled thyristors U2-1, U2-2 are not activated, and the second resistance wires RL2-1, RL2-2 are in a power-off state. . In this state, the heat generating device 33 is heated at 1/3 of the full power.

State 3, when T _balance -1 °C ≤ T _time <T _balance -0.5 ° C, the voltage of the low potential terminal Ve of the negative temperature coefficient thermistor RT is lower than the lower voltage of the fourth step resistor RJ4 in the currently triggered step-down group The voltage at the potential terminal Va is also smaller than the voltage at the low potential end of the seventh step-down resistor RJ7-1, but larger than the voltage at the low potential terminal of the seventh step-down resistor RJ7-2, at which time the first comparator A1 and the third comparator A3-1 is forward biased, the third comparator A3-2 is negatively biased, the first photo-controlled thyristor U1 and the second photo-controlled thyristor U2-1 are activated, and the first resistance wire RL1 and the second resistance wire RL2-1 When the power is on and the heating starts, the second photo-controlled thyristor U2-2 is not activated, and the second resistance wire RL2-2 is in a power-off state. In this state, the heat generating device 33 is heated at 2/3 of the full power.

State 4, when the real-time water temperature of the aquarium T _time <T _balance -1 °C, the voltage of the low potential terminal Ve of the negative temperature coefficient thermistor RT is lower than the low potential of the fourth step-down resistor RJ4 in the currently triggered step-down group. The voltage of the terminal Va is also smaller than the voltage of the low potential terminal of the seventh step-down resistors RJ7-1 and RJ7-2. At this time, the first comparator A1 and the third comparators A3-1 and A3-2 are both forward biased. The first photo-controlled thyristor U1 and the second photo-controlled thyristors U2-1 and U2-2 are both activated, and the first resistance wire RL1 and the second resistance wires RL2-1 and RL2-2 are both energized and start heating. In this state, the heat generating device 33 is heated at full power.

Table 2

The intelligent heating rod provided in this embodiment can not only realize the temperature adjustment by means of wireless remote control, but also divide the heat generating device 3 into three heat generating groups, and each heat generating group can be heated separately or in combination. The heating device 3 is heated at 1/3, 2/3 or 3/3 of the full power, thereby achieving a stepwise change of the water temperature. This design can effectively reduce fluctuations and overshoot of the water temperature, and is beneficial to fish. Healthy growth.

It should be noted that, in this embodiment, more heat generating groups may be set according to actual conditions, thereby obtaining more levels of water temperature change effects. The number of heat generating groups in the four pairs of intelligent heating bars of the exemplary device is not specifically limited. That is, the three heat generating groups in this embodiment are only specific embodiments of the exemplary device 4, and are not intended to limit the protection scope of the exemplary device 4, and within the spirit and principle of the present exemplary device 4, Setting more or fewer heat generating groups should be included in the scope of protection of this exemplary device 4.

Embodiment 3

This embodiment is a specific implementation provided by the exemplary device 4.

FIG. 11 is a front elevational view of the smart heating bar, including: a conduction switch 1 (not shown in FIG. 11), a power cord 2, a heat generating device 3, a wireless receiving device 4, and a wireless remote control device 5. The water temperature detecting device 6, the temperature setting device 7 (not shown in Fig. 11), the switch control device 8 (not shown in Fig. 11), the casing 9, the color liquid crystal display 10, the photosensor 11, and the camera 12.

In this embodiment, the wireless receiving device 4 includes a WiFi receiver, and the wireless remote control device 5 includes a WiFi transmitter, and the signals are transmitted between the two through the WiFi technology.

The conduction switch 1, the heat generating device 3, the temperature setting device 7, the switch control device 8, the wireless receiving device 4, the color liquid crystal display 10, the photosensor 11, and the camera 12 are all disposed inside the casing 9.

The housing 9 has a transparent viewing area to which the color liquid crystal display 10, photosensor 11 and camera 12 are all facing.

The color liquid crystal display 10 is connected to the temperature setting means 7 for displaying the temperature value set by the user (the reference operating temperature of the heat generating device 3), and may also be connected to the water temperature detecting means 6 for displaying the real-time water temperature in the aquarium.

The photosensor 11 detects the light intensity of the environment in which the aquarium is located in real time and emits a light-sensitive signal of the intensity of the reaction light. The color liquid crystal display 10 obtains a light-sensitive signal by connecting the photosensitive sensor 11, and can automatically adjust the brightness of the backlight according to the light-sensitive signal, so that the brightness of the backlight changes according to the light intensity of the environment, so that the user can observe the display information more comfortably during the day or night. Will interfere with the rest of the fish.

The camera 12 is connected to the wireless receiving device 4 for capturing scenes in the aquarium, for example, watching interesting scenes such as fish eating, breeding, and the like, and transmitting the captured images to the external device through the wireless receiving device 4 for playback to the user for viewing.

The specific embodiments, the purpose, the technical solution and the beneficial effects of the exemplary device 4 are further described in detail, and it should be understood that the above description is only a specific embodiment of the exemplary device four, and It is not intended to limit the scope of protection of this exemplary device 4, and any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this exemplary device 4, should be included in the scope of protection of the present exemplary device 4. within.

Those skilled in the art can also understand that the various illustrative logical blocks, units, and steps listed in the embodiments of the present invention can be implemented by electronic hardware, computer software, or a combination of the two. To clearly illustrate the interchangeability of hardware and software, the various illustrative components, units and steps described above have generally described their functions. Whether such functionality is implemented by hardware or software depends on the design requirements of the particular application and the overall system. A person skilled in the art can implement the described functions using various methods for each specific application, but such implementation should not be construed as being beyond the scope of the embodiments of the present invention.

The various illustrative logic blocks, or units, or devices described in the embodiments of the invention may be implemented by general purpose processors, digital signal processors, application specific integrated circuits (ASICs), field programmable gate arrays or other programmable logic. Devices, discrete gate or transistor logic, discrete hardware components, or any combination of the above are designed to implement or operate the functions described. A general purpose processor may be a microprocessor. Alternatively, the general purpose processor may be any conventional processor, controller, microcontroller, or state machine. The processor may also be implemented by a combination of computing devices, such as a digital signal processor and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a digital signal processor core, or any other similar configuration. achieve.

The steps of the method or algorithm described in the embodiments of the present invention may be directly embedded in hardware, a software module executed by a processor, or a combination of the two. The software modules can be stored in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium in the art. Illustratively, the storage medium can be coupled to the processor such that the processor can read information from the storage medium and can write information to the storage medium. Alternatively, the storage medium can also be integrated into the processor. The processor and the storage medium may be disposed in an ASIC, and the ASIC may be disposed in the user terminal. Alternatively, the processor and the storage medium may also be disposed in different components in the user terminal.

In one or more exemplary designs, the above-described functions described in the embodiments of the present invention may be implemented in hardware, software, firmware, or any combination of the three. If implemented in software, these functions may be stored on a computer readable medium or transmitted as one or more instructions or code to a computer readable medium. Computer readable media includes computer storage media and communication media that facilitates the transfer of computer programs from one place to another. The storage medium can be any available media that any general purpose or special computer can access. For example, such computer-readable media can include, but is not limited to, RAM, ROM, EEPROM, CD-ROM or other optical disk storage, disk storage or other magnetic storage device, or any other device or data structure that can be used for carrying or storing Other media that can be read by a general purpose or special computer, or a general purpose or special processor. In addition, any connection can be appropriately defined as a computer readable medium, for example, if the software is from a website site, server, or other remote source through a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL) Or wirelessly transmitted in, for example, infrared, wireless, and microwave, is also included in the defined computer readable medium. The disks and discs include compact disks, laser disks, optical disks, DVDs, floppy disks, and Blu-ray disks. Disks typically replicate data magnetically, while disks typically optically replicate data with a laser. Combinations of the above may also be included in a computer readable medium.

Claims

An intelligent heating rod, comprising: a heating core, a temperature control unit, a thyristor and a power line;

The two output ends of the thyristor are respectively connected to the heating core and the power line, and the input end is connected to the temperature control unit;

When the thyristor is turned on, the power line supplies alternating current to the heating core, and the heating core is energized and generates heat;

When the thyristor is turned off, the power line stops supplying alternating current to the heating core, and the heating core is powered off and stops heating;

The temperature control unit is configured to perform zero-crossing detection on the alternating current provided by the power line, and control the thyristor to be turned on or off at an alternating current zero-crossing point according to the result of the zero-crossing detection, and by controlling the thyristor The ratio of the time in the on state and the off state per unit time is used to adjust the proportion of time during which the heating core generates heat and stops heating in a unit time, thereby adjusting the heating power of the intelligent heating rod.
The intelligent heating rod according to claim 1, further comprising: a water temperature sensor and a temperature setting unit;

The water temperature sensor detects the temperature of the water in the aquarium in real time;

The temperature setting unit receives a temperature setting command input by a user, and parses a target temperature from the temperature setting command;

The temperature control unit is further configured to determine a difference between a temperature of the water in the aquarium and the target temperature when the temperature of the water in the aquarium is lower than the target temperature, if the difference is greater The greater the proportion of time during which the heating core heats up and stops heating in a unit time, so that the heating power of the smart heating rod is larger, and if the difference is smaller, the heating core is controlled in units. The smaller the proportion of time during which heat is generated and the heat is stopped, so that the heating power of the smart heating rod is smaller.
The intelligent heating rod according to claim 2, further comprising: a day and night monitoring unit, a day and night temperature difference setting unit;

The day and night monitoring unit monitors the day and night of the environment in which the aquarium is located in real time;

The day and night temperature difference setting unit receives a day and night temperature difference setting command input by the user, and parses a temperature difference value and a target temperature setting standard from the day and night temperature difference setting command, wherein the target temperature setting standard Indicating that the target temperature is set for day or nighttime;

The temperature control unit is further configured to:

When the target temperature setting criterion indicates that the target temperature is set for the daytime, if the day and night condition of the environment in which the aquarium is located is daytime, when the temperature of the water in the aquarium is lower than the target temperature Controlling the heating core to generate heat, if the day and night condition of the environment in which the aquarium is located is nighttime, controlling the heating core to heat when the temperature of the water in the aquarium is lower than the difference between the target temperature and the temperature difference ;as well as,

In a case where the target temperature setting standard indicates that the target temperature is set for nighttime, if the day and night condition of the environment in which the aquarium is located is daytime, the temperature of the water in the aquarium is lower than the target temperature and The sum of the temperature differences controls the heating of the heating core, and if the day and night conditions of the environment in which the aquarium is located are nighttime, the heating of the heating core is controlled when the temperature of the water in the aquarium is lower than the target temperature. .
The intelligent heating rod according to claim 2, further comprising: a day and night monitoring unit;

The day and night monitoring unit monitors the day and night of the environment in which the aquarium is located in real time;

The target temperature includes a daytime temperature setting value and a nighttime temperature setting value;

The temperature control unit is further configured to:

If the day and night condition of the environment in which the aquarium is located is daytime, controlling the heating core to heat when the temperature of the water in the aquarium is lower than the daytime temperature setting value;

If the day and night condition of the environment in which the aquarium is located is nighttime, the heating core is controlled to heat when the temperature of the water in the aquarium is lower than the nighttime temperature setting value.
The intelligent heating rod according to claim 1, further comprising: a power setting unit;

The power setting unit receives a power setting command input by a user, and parses a target power from the power setting command;

The temperature control unit is further configured to control the heating power of the smart heating rod to be maintained below the target power.
The intelligent heating rod according to claim 2, further comprising: a wireless transmission unit and a wireless remote controller;

The wireless remote controller is disposed outside the aquarium for transmitting a command input by the user to the wireless transmission unit by using a wireless transmission technology;

The wireless transmission unit is placed inside the aquarium for receiving commands forwarded by the user and forwarding.
The intelligent heating rod according to claim 6, wherein the wireless transmission unit transmits a command input by the user to the wireless transmission unit through an infrared transmission technology or a WIFI transmission technology or a Bluetooth transmission technology.
The intelligent heating rod according to claim 6, further comprising: a liquid crystal display; wherein the liquid crystal display is connected to the wireless transmission unit for displaying parameter information parsed from a command input by a user.
The intelligent heating rod according to claim 8, further comprising: a photosensitive sensor;

The photosensitive sensor detects the light intensity of the environment in which the aquarium is located in real time;

The liquid crystal display adjusts backlight brightness according to the light intensity of the environment in which the aquarium is located.
The intelligent heating rod according to claim 2, wherein the water temperature sensor is sealed in a heat pipe, the heat pipe is disposed at a top of the smart heating rod, and the heat pipe is in the aquarium The water is in direct contact.
The intelligent heating rod according to claim 10, further comprising: a high temperature sensor, an early warning unit, and an alarm;

The high temperature sensor detects the heating temperature of the heating core in real time;

The warning unit is configured to: when determining that the heating temperature of the heating core is higher than a preset maximum temperature, send a power-off instruction to the temperature control unit, and trigger the alarm device to perform an alarm to alert the user to the intelligent heating The rod is in an over temperature state;

When the temperature control unit receives the power-off command, the thyristor is turned off to cause the heat-generating core to be powered off and stop generating heat.
The intelligent heating rod according to claim 11, wherein the warning unit is further configured to determine that the heating temperature of the heating core detected by the high temperature sensor is continuously increased in a preset period of time. And when the heating rate is greater than a predetermined rate, the power-off command is sent to the temperature control unit, and the alarm is triggered to alarm to notify the user that the smart heating rod is in a dry state.
The intelligent heating rod according to claim 11, wherein the warning unit is further configured to determine that the temperature of the water in the aquarium detected by the water temperature sensor in real time does not rise within a predetermined period of time, and the The alarm device is triggered to alarm when the heating temperature of the heating core is continuously increased and the heating rate is less than a preset rate in the preset time period to notify the user that the aquarium is in a shortage. Water status.
The intelligent heating rod according to claim 1, further comprising: a camera;

The camera is used to capture scenes in the aquarium.
The intelligent heating rod according to claim 1, further comprising: a built-in housing and an outer housing;

The built-in housing is installed inside the aquarium;

The heating core and the thyristor are sealed in the built-in housing;

The power cord passes through the built-in housing to connect to the mains;

The external casing is installed outside the aquarium;

The temperature control unit is mounted in an external housing.
An aquarium characterized by comprising: a fish tank, and a smart heating rod;

The intelligent heating rod comprises a heating core, a temperature control unit, a thyristor and a power line;

The two output ends of the thyristor are respectively connected to the heating core and the power line, and the input end is connected to the temperature control unit;

When the thyristor is turned on, the power line supplies alternating current to the heating core, and the heating core is energized and generates heat;

When the thyristor is turned off, the power line stops supplying alternating current to the heating core, and the heating core is powered off and stops heating;

The temperature control unit is configured to perform zero-crossing detection on the alternating current provided by the power line, and control the thyristor to be turned on or off at an alternating current zero-crossing point according to the result of the zero-crossing detection, and by controlling the thyristor The ratio of the time in the on state and the off state per unit time is used to adjust the proportion of time during which the heating core generates heat and stops heating in a unit time, thereby adjusting the heating power of the intelligent heating rod.