A multifunctional connected expansion device

Abstract

This utility model discloses a multi-functional connection expansion device, including an expansion device body, a control connection port and multiple expansion interfaces disposed on the expansion device body, and a circuit board built into the expansion device body; the circuit board is equipped with a microprocessor, and a memory and a communication module respectively connected to the microprocessor; the expansion interfaces are connected to the microprocessor via the communication modules; the control connection port is used to connect to an external controller, and the expansion interfaces are used to connect to a power supply, electrical appliances, or sensors. This utility model, by setting expansion interfaces that can connect to both electrical appliances and sensors, enables flexible connection of electrical appliances or various sensors on the same expansion device, which helps to improve the flexibility and practicality of intelligent planting systems and achieve integrated control and environmental monitoring.

Description

Technical Field

[0001] This utility model relates to the field of electronic device connection technology, and in particular to an expansion device that can connect to multiple electronic devices simultaneously. Background Technology

[0002] With the rapid development of IoT technology, various smart electrical devices and sensors are being used more and more widely in planting scenarios. In order to meet users' needs for multifunctional and highly integrated devices, various expansion devices and smart socket products have emerged in the market.

[0003] However, most expansion devices can only connect to electrical appliances or sensors, making it difficult to simultaneously meet users' needs for both appliance control and environmental sensor monitoring. This limitation often necessitates users purchasing and installing multiple expansion devices, increasing costs and making it difficult to keep the space clean and tidy. Utility Model Content

[0004] The purpose of this invention is to provide a multi-functional connection expansion device. By setting an expansion interface that can connect both electrical appliances and sensors, electrical appliances or various sensors can be flexibly connected to the same expansion device, which helps to improve the flexibility and practicality of the intelligent planting system and realize integrated control and environmental monitoring.

[0005] To achieve the above objectives, the following technical solution is adopted:

[0006] A multi-functional connectivity expansion device includes an expansion device body, a control connection port and multiple expansion interfaces disposed on the expansion device body, and a circuit board installed inside the expansion device body; the circuit board is provided with a microprocessor, and a memory and a communication module respectively connected to the microprocessor; the expansion interfaces are connected to the microprocessor via the communication module; the control connection port is used to connect to an external controller, and the expansion interfaces are used to connect to a power supply, electrical appliances or sensors.

[0007] Preferably, the communication module includes a CAN communication unit and an I2C communication unit; the CAN communication unit is responsible for communication between the electrical appliance and the expansion device, and the I2C communication unit is responsible for communication between the sensor and the expansion device.

[0008] Preferably, both the control connection port and the expansion interface are USB interfaces.

[0009] Preferably, the main body of the expansion device includes an upper shell and a lower shell that are snapped together; an inner cavity is formed between the upper shell and the lower shell to accommodate a circuit board.

[0010] Preferably, the plurality of expansion interfaces are arranged side by side at one end of the expansion device body, and the control connection port is located at the other end of the expansion device body.

[0011] By adopting the above solution, the beneficial effects of this utility model are:

[0012] This utility model provides a multi-functional connection expansion device that is simple and easy to use. By setting an expansion interface that can connect both electrical appliances and sensors, electrical appliances or various sensors can be flexibly connected to the same expansion device, which helps to improve the flexibility and practicality of the intelligent planting system, realize integrated control and environmental monitoring, and meet the increasingly diverse needs of users. Attached Figure Description

[0013] Figure 1 This is a perspective view of the present utility model;

[0014] Figure 2 This is a perspective view of the utility model in use;

[0015] Figure 3 This is a schematic block diagram of the present invention;

[0016] The following are explanations of the labels in the attached diagram:

[0017] 1—Extension equipment main body, 2—Control connection port,

[0018] 3—Expansion interface, 4—Microprocessor,

[0019] 5—Memory, 6—Communication module,

[0020] 7—Temperature and humidity sensor; 8—Transmitter;

[0021] 9—Receiver, 11—Upper casing,

[0022] 12—Lower shell, 61—CAN communication unit,

[0023] 62—I2C communication unit. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0025] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0026] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0027] Reference Figures 1 to 3 As shown, this utility model provides a multi-functional connection expansion device, including an expansion device body 1, a control connection port 2 and multiple expansion interfaces 3 disposed on the expansion device body 1, and a circuit board installed inside the expansion device body 1; the circuit board is provided with a microprocessor 4, and a memory 5 and a communication module 6 respectively connected to the microprocessor 4; the microprocessor 4 is responsible for coordinating and managing the data transmission and power supply of each interface, and the memory 5 is used to store device configuration information and sensor data. The expansion interfaces 3 are connected to the microprocessor 4 via the communication module 6; the control connection port 2 is used to connect to an external controller, and the expansion interfaces 3 are used to connect to a power supply, electrical appliances, or sensors. The external controller is a central controller, a smart control power strip, etc. The control connection port 2 is connected to the central controller or smart control power strip, and the electrical appliances can be controlled via a touch screen or buttons, or connected to the central controller or smart control power strip via a mobile APP, and the sensor test data can be displayed and the electrical appliances can be remotely controlled via the mobile phone.

[0028] Both the control connection port 2 and the expansion interface 3 are USB interfaces, with the control connection port 2 preferably being a Type-C interface. The expansion interface 3 supports common environmental sensors, such as temperature and humidity sensors, soil sensors, water level sensors, carbon dioxide sensors, light sensors, pH sensors, and EC sensors; it also supports connecting to common environmental control appliances, such as fans, humidifiers, dehumidifiers, heaters, air conditioners, automatic watering systems, and plant lights. In an intelligent greenhouse system, the expansion device provided by this invention can simultaneously connect environmental sensors such as temperature and humidity sensors, soil sensors, and light sensors, as well as control electrical equipment such as lights, humidifiers, and fans, achieving integrated environmental monitoring and control, greatly improving the overall performance and usability of the system.

[0029] The communication module 6 includes a CAN communication unit 61 and an I2C communication unit 62. The CAN communication unit 61 is responsible for communication between the electrical appliance and the expansion device, and the I2C communication unit 62 is responsible for communication between the sensor and the expansion device. The communication module 6 includes both CAN and I2C communication units, meaning the expansion device internally supports two communication protocols. These two protocols utilize all nine pins on one side of the Type-C interface (control connection port 2), with two pins for power supply (positive and negative), five data pins dedicated to the electrical appliance, and two data pins dedicated to the sensor. When an electrical appliance is connected, a data transmission protocol is established between the appliance and the microprocessor 4 via the five dedicated data pins. At this point, the microprocessor 4 can identify that the expansion interface 3 is connected to an electrical appliance. Similarly, when a sensor is connected, a data transmission protocol is established between the sensor and the microprocessor 4 via the two dedicated data pins. This allows the microprocessor 4 to identify that the expansion interface 3 is connected to a sensor, thus enabling simultaneous connection of both electrical appliances and sensors.

[0030] The multi-functional connection expansion device provided by this utility model, by setting an expansion interface 3 that can connect both electrical appliances and sensors, realizes unified management of electrical appliances and sensors, which not only saves space, but also improves the collaborative efficiency between devices, and provides users with a more intelligent and convenient user experience.

[0031] The main body 1 of the expansion device includes an upper shell 11 and a lower shell 12 that are fixed together by snap-fit; an inner cavity is formed between the upper shell 11 and the lower shell 12 to accommodate a circuit board. Furthermore, the main body 1 of the expansion device has a cuboid structure, and the upper shell 11 and the lower shell 12 are fixed together by snap-fit ​​to avoid crystal oscillator malfunction caused by ultrasonic welding.

[0032] The multiple expansion interfaces 3 are arranged side by side at one end of the expansion device body 1, and the control connection port 2 is located at the other end of the expansion device body 1. When there are a large number of electrical appliances and sensors to be connected, another expansion device can be connected to the expansion interface 3, and so on, up to three layers can be connected; of course, the number of expansion interfaces 3 of an expansion device can also be changed, and can be set to 4-10.

[0033] In one specific embodiment, please continue to refer to Figure 2 The first expansion port 3 on the left side of the expansion device is typically connected to a powered appliance or directly to a power source. Other expansion ports 3 can connect to sensors or appliances; for example, the fourth expansion port 3 connects to a temperature and humidity sensor 7. The second and third expansion ports 3 connect to appliances via wireless transceivers, specifically the transmitter 8, with the corresponding receiver 9 connected to the appliance, such as a humidifier or heater. The control port 2 connects to a central controller, which can monitor the environment and the operation of appliances in real time. Users can view temperature and humidity data through the central controller or a mobile app and remotely control the on / off state and power levels of appliances based on the detected temperature and humidity values. Users can also directly set up intelligent modes, such as automatically adjusting the power levels of the humidifier and heater based on the data from the temperature and humidity sensor 7, thereby maintaining the ambient temperature and humidity within a suitable range.

[0034] In another specific embodiment, the control connection port 2 of the expansion device is connected to a central controller, and the expansion interface 3 can be connected to all sensors. In this case, it is not necessary to connect a power supply (power supply equipment) to the expansion interface 3.

[0035] In another specific embodiment, the control connection port 2 of the expansion device is connected to a central controller, and the first expansion port 3 on the left is usually connected to a powered electrical appliance or directly connected to a power source, while the other expansion ports 3 can all be connected to electrical appliances.

[0036] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model. Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the utility model and are not intended to limit the implementation of this utility model. For those skilled in the art, various obvious changes, readjustments, and substitutions can be made without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A multi-functional connection expansion device, characterized by, The device includes an expansion device body, a control connection port and multiple expansion interfaces on the expansion device body, and a circuit board built into the expansion device body; the circuit board is equipped with a microprocessor, and a memory and a communication module respectively connected to the microprocessor; the expansion interfaces are connected to the microprocessor via the communication module; the control connection port is used to connect to an external controller, and the expansion interfaces are used to connect to a power supply, electrical appliances or sensors.

2. The multi-functional connected expansion device according to claim 1, wherein, The communication module includes a CAN communication unit and an I2C communication unit; the CAN communication unit is responsible for communication between electrical appliances and expansion devices, and the I2C communication unit is responsible for communication between sensors and expansion devices.

3. The multi-functional connected expansion device of claim 1, wherein, Both the control connection port and the expansion interface are USB interfaces.

4. The multi-functional connected expansion device of claim 1, wherein, The main body of the expansion device includes an upper shell and a lower shell that are fixed together by snaps; an inner cavity is formed between the upper shell and the lower shell to accommodate a circuit board.

5. The multi-functional connected expansion device of claim 4, wherein, The multiple expansion interfaces are arranged side by side at one end of the expansion device body, and the control connection port is located at the other end of the expansion device body.

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