CN218850390U

CN218850390U - Multi-channel differential capacitor water leakage protection device for plant machine

Info

Publication number: CN218850390U
Application number: CN202223573622.2U
Authority: CN
Inventors: 吴琎; 梁潇
Original assignee: Beijing Kitten and Puppy Technology Co Ltd
Current assignee: Beijing Kitten and Puppy Technology Co Ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-04-11
Anticipated expiration: 2032-12-30

Abstract

The utility model discloses a protection device that leaks of multi-channel differential capacitor of plant machine, include: a water tank disposed on the vegetation machine; the capacitive water leakage sensor is arranged at the bottom of the water tank in series and generates a water leakage signal when the capacitive water leakage sensor is positioned in water, and the water leakage signal comprises a differential capacitance value change value and an identification number; and the controller is connected with the capacitive water leakage sensor, judges whether the change value of the differential capacitance exceeds a preset threshold value or not, and controls the water pump to be closed if the change value of the differential capacitance exceeds the preset threshold value. The utility model discloses increased the water sensor that the unibus data send was received on the basis of original planter, can establish ties a plurality ofly, realize that base plane multiple spot water logging detects. The user can be informed of the generation of the abnormal state and take evasive measures for the first time.

Description

Multi-channel differential capacitor water leakage protection device for plant machine

Technical Field

The utility model relates to a protection field that leaks particularly relates to a protection device that leaks of plant machine multichannel differential capacitance.

Background

The existing intelligent planter is generally used in the environment that people are not near the body for a long time. The nutrient solution required by the growth of the plants is stored in a water tank in the body. Once abnormal conditions occur, including but not limited to water tank rupture, fuselage toppling, nutrient solution excessive addition, overflow caused by excessive hydrogen peroxide addition during flushing, and the like, the water in the water tank is likely to overflow to the environment or overflow to the environment during water filling. At the moment, if a user is not near the machine, the abnormal condition of water overflow cannot be found in time and evasion measures are taken, so that the damage can be caused to a scene (such as a floor) using the planting machine, an internal power supply part and a circuit board are in short circuit in serious conditions, and hidden dangers are caused to personal property safety.

SUMMERY OF THE UTILITY MODEL

The utility model discloses just based on prior art's above-mentioned demand and propose, the to-be-solved technical problem of the utility model is to provide a protection device that leaks of plant machine multichannel differential capacitance.

In order to solve the above problem, the utility model provides a technical scheme includes:

the utility model provides a protection device that leaks of vegetation machine multichannel differential capacitance includes:

a water tank configured on the vegetation machine;

the capacitive water leakage sensor is arranged at the bottom of the water tank in series and generates a water leakage signal when the capacitive water leakage sensor is positioned in water, and the water leakage signal comprises a differential capacitance value change value and an identification number;

and the controller is connected with the capacitive water leakage sensor, judges whether the change value of the differential capacitance exceeds a preset threshold value or not, and controls the water pump to be closed if the change value of the differential capacitance exceeds the preset threshold value.

Optionally, comprising:

each capacitive water leakage sensor has a unique identification number, and the water leakage position is determined according to the identification number in the water leakage signal.

Optionally, the capacitive water leakage sensor includes an insulating probe shell, a liquid level detection chip and a differential capacitor, which are respectively disposed at each corner of the bottom of the water tank, and the capacitive water leakage sensor has three pins, a first pin is connected with a power supply, a second pin is connected with a control circuit, and a third pin is grounded.

Optionally, the liquid level detection chip is MDC04, the power supply voltage range is 2.0v-5.5v, the output is a single bus digital signal, the measurement range is ± 15.5pf, and the linearity error is less than 0.3%.

Optionally, the method further comprises:

the alarm device is connected with the controller and sends an alarm prompt according to the relation between the differential capacitance value and a preset threshold value;

wherein, the alarm prompting mode comprises at least one or the combination of the following modes: sound, text, image, light.

Optionally, the method further comprises:

the water inlet pipe is arranged above the water tank and is communicated with a water source;

and the water inlet valve is arranged on the water inlet pipe, and the controller is connected with the water inlet valve and controls the water inlet valve.

Optionally, comprising:

the shell of the capacitive water leakage sensor is provided with a connecting piece, and the connecting piece is used for fixing and installing the capacitive water leakage sensor in the water tank.

Optionally, comprising:

an insulating support is configured in the water tank, a capacitive water leakage sensor mounting groove is formed in the insulating support, and a buckle matched with the mounting groove is arranged on a shell of the capacitive water leakage sensor.

Optionally, the controller further comprises:

and the communication module is electrically connected with the controller.

Optionally, the communication module is a bluetooth transmission module, a ZigBee transmission module, a WIFI transmission module, a 5G communication module, a 4G communication module, a 3G communication module, a 2G communication module, an NB-IOT communication module, a LoRa communication module, an eMTC communication module, or a Sigfox communication module.

Compared with the prior art, the utility model discloses increased the water sensor that the unibus data send was received on the basis of original planter, can establish ties a plurality ofly, realize that base plane multiple spot water logging detects. The user can be informed of the generation of the abnormal state and take evasive measures for the first time.

Drawings

In order to more clearly illustrate the embodiments of the present specification or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the embodiments of the present specification, and other drawings can be obtained by those skilled in the art according to the drawings.

Fig. 1 is a schematic structural diagram of a multi-channel differential capacitor water leakage protection device for a plant machine according to an embodiment of the present invention;

fig. 2 is a schematic view of a working process of the multi-channel differential capacitor water leakage protection device for a plant machine according to an embodiment of the present invention;

fig. 3 is a schematic circuit diagram of a multi-channel differential capacitor water leakage protection device for a plant machine according to an embodiment of the present invention;

reference numerals:

1-a first capacitive water leakage sensor; 2-a second capacitive water leakage sensor; 3-a third capacitive water leakage sensor; 4-fourth capacitive water leakage sensor.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the term "connected" should be understood broadly, and for example, the term may be fixed connection, detachable connection, or integrated connection, which may be mechanical connection, electrical connection, which may be direct connection, or indirect connection through an intermediate medium. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The terms "top," "bottom," "at 8230; \8230; above," "below," and "at 8230; above" are used throughout the description to refer to the relative positions of the components of the device, such as the relative positions of the top and bottom substrates inside the device. It will be appreciated that the devices are multifunctional, regardless of their orientation in space.

For the purpose of facilitating understanding of the embodiments of the present application, the following description will be made in terms of specific embodiments with reference to the accompanying drawings, which are not intended to limit the embodiments of the present application.

The embodiment provides a multi-channel differential capacitor water leakage protection device for a plant machine, as shown in fig. 1 to 3, including:

a water tank configured on the vegetation machine;

The embodiment of the utility model provides a through cascading a plurality of single bus sensor chips, detect differential capacitance appearance value, judge whether there is the soaking condition to take place.

Preferably, the apparatus comprises:

With this setting, can be accurate which part of concrete water tank base has appeared the water logging condition, the user takes corresponding measure after receiving the feedback.

Preferably, the capacitive water leakage sensor comprises an insulating probe shell, a liquid level detection chip and a differential capacitor, the insulating probe shell, the liquid level detection chip and the differential capacitor are respectively arranged at each corner of the bottom of the water tank, the capacitive water leakage sensor is provided with three pins, a first pin is connected with a power supply, a second pin is connected with a control circuit, and a third pin is grounded.

The embodiment of the present invention provides a capacitive water leakage sensor, wherein the first detection pin is a power input pin, the second detection pin is a digital signal output pin, and the third pin is for grounding.

Preferably, the liquid level detection chip is MDC04, the power supply voltage range is 2.0v-5.5v, the output is a single-bus digital signal, the measurement range is +/-15.5 pf, and the linearity error is less than 0.3%.

The liquid level detection chip is MDC04, four off-chip capacitance measurement driving and receiving conditioning circuits are built in the chip, and time division multiplexing acquisition processing is achieved through a multiplexer. The received signal can be configured with the measured central value and measuring range through a digital-to-analog converter, and is converted into a 16-bit capacitance value through an amplifier and an analog-to-digital converter. The chip also integrates a temperature sensing unit for temperature sensing applications. The capacitance and temperature data are stored in the register file after being subjected to digital compensation calculation such as filtering, bias, slope and the like through the digital compensation calculation unit. MDC04 is compatible with single bus and I ² And C, two digital interfaces. The embodiment of the utility model provides an use single bus digital interface. The digital control module in the chip can identify the interface instruction to carry out instructions such as capacitance acquisition, temperature acquisition, memory read-write, function configuration, alarm and the like. The chip is internally provided with a power supply voltage stabilizer and power supply management logic, and can automatically enter sleep when not executing an instruction, and automatically wake up when the bus works. In addition, an EEPROM memory unit is integrated in the chip and used for storing the calibration coefficient of the chip, the user customization information and the unique ID number of 64 bit. According to practical application, 1-100 nodes can be connected in series, and addressed and accessed through ID numbers.

Preferably, the apparatus further comprises:

When the differential capacitance value exceeds a preset threshold value, the alarm device sends an alarm prompt; otherwise, the alarm device continues to detect the differential capacitance value.

When the alarm prompt is sound, the alarm device can be a buzzer, the buzzer is connected with the alarm driving circuit, when the capacitive water leakage sensor detects water, the capacitive water leakage sensor outputs the alarm prompt, and the alarm driving circuit drives the buzzer to sound.

When the alarm prompt is light, the alarm device can be a light-emitting diode, when water leakage or moisture occurs, the light-emitting diode lamp can emit red, otherwise, the light-emitting diode lamp is green.

When the alarm prompt is an image, the alarm device can display the water leakage prompt through a screen, can also interact with a user by utilizing communication equipment, and is displayed on intelligent equipment, such as a mobile phone, a computer and the like, so that the application range is wide, and the use requirements of different users can be met.

Preferably, the apparatus further comprises:

the water inlet valve is arranged on the water inlet pipe, and the controller is connected with the water inlet valve and controls the water inlet valve.

When the plant machine breaks down and leaks water, the controller controls the water inlet valve to be closed in time, so that the circuit of the plant machine is prevented from being damaged, and the property and personal safety of a user of the plant machine are protected.

Preferably, the apparatus further comprises:

and the self-checking system is used for detecting the working state of each device in the plant machine.

Further, when the plant machine is in an operation mode, when an overflow condition is detected, an alarm device of the plant machine sends an alarm prompt, the water inlet valve is controlled to be closed, other devices in the plant machine in an operation state can be suspended, a user can manually wipe water stains after receiving the alarm prompt, a self-checking system of the plant machine performs self-checking through a control button, and the system continues to operate after no problem is confirmed.

The capacitive water leakage sensor sends collected data to the controller at a certain frequency, the controller judges whether the capacitance value of the differential capacitor exceeds a preset threshold value in real time, and after abnormality occurs, a user needs to reset the equipment manually, so that the stability of the plant machine is ensured.

Preferably, a connector is arranged on a housing of the capacitive water leakage sensor, and the connector is used for fixing and installing the capacitive water leakage sensor in the water tank.

Preferably, an insulating support is arranged in the water tank, a capacitive water leakage sensor mounting groove is formed in the insulating support, and a buckle matched with the mounting groove is arranged on a shell of the capacitive water leakage sensor.

Preferably, the controller further comprises:

and the communication module is electrically connected with the controller.

Preferably, the communication module is a bluetooth communication module, a ZigBee transmission module, a WIFI transmission module, a 5G communication module, a 4G communication module, a 3G communication module, a 2G communication module, an NB-IOT communication module, a LoRa communication module, an eMTC communication module, or a Sigfox communication module.

When the environment of using the plant machine overflows, the water logging condition, the controller can send alarm signal, on communication module conveys the cloud platform, the user can in time obtain the plant machine on terminal equipment and have the information of leaking. Meanwhile, the intelligent plant machine can cut off all devices in the working mode, enters an abnormal state (such as a water pump stops pumping water) until a user receives that the plant machine is abnormal, manually enters a rechecking mode, and the machine can not operate again after the user confirms that no abnormal state exists.

Compared with the prior art, the embodiment of the utility model provides an increased the water logging sensor that unibus data send was received on the basis of original planter, can establish ties a plurality ofly, realize that base plane multiple spot water logging detects. The user can be informed of the generation of the abnormal state and take evasive measures for the first time.

The above-mentioned embodiments, objects, technical solutions and advantages of the present application are further described in detail, it should be understood that the above-mentioned embodiments are only examples of the present application, and are not intended to limit the scope of the present application, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present application should be included in the scope of the present application.

Claims

1. The utility model provides a protection device that leaks of vegetation machine multichannel differential capacitance which characterized in that includes:

a water tank disposed on the vegetation machine;

2. The water leakage protection device of claim 1, comprising:

3. The water leakage protection device of claim 1, wherein the capacitive water leakage sensor comprises an insulating probe housing, a liquid level detection chip and a differential capacitor, the insulating probe housing, the liquid level detection chip and the differential capacitor are respectively arranged at each corner of the bottom of the water tank, the capacitive water leakage sensor has three pins, a first pin is connected with a power supply, a second pin is connected with the control circuit, and a third pin is grounded.

4. The water leakage protection device of claim 3, wherein the liquid level detection chip is MDC04, the power supply voltage range is 2.0v-5.5v, the output is a single-bus digital signal, the measurement range is ± 15.5pf, and the linearity error is less than 0.3%.

5. The water leakage protection device of claim 1, further comprising:

6. The water leakage protection device of claim 1, further comprising:

7. The water leakage protection device of claim 1, comprising:

8. The water leakage protection device of claim 1, comprising:

9. The water leakage protection device of claim 1, wherein said controller further comprises:

and the communication module is electrically connected with the controller.

10. The water leakage protection device of claim 9, wherein the communication module is a bluetooth communication module, a ZigBee communication module, a WIFI communication module, a 5G communication module, a 4G communication module, a 3G communication module, a 2G communication module, an NB-IOT communication module, a LoRa communication module, an eMTC communication module, or a Sigfox communication module.