Millimeter wave ton barrel liquid level detection device

Abstract

The utility model discloses a kind of millimeter wave ton barrel liquid level detection equipment, and the technical problem to be solved is convenient to install, accurate measurement, good protection, support remote monitoring.The utility model adopts following technical scheme: a kind of millimeter wave ton barrel liquid level detection equipment is equipped with sealed box body, millimeter wave sensor, core control panel, key switch and battery power supply are equipped in sealed box body, millimeter wave sensor is electrically connected with core control panel by key switch, battery power supply powers millimeter wave sensor and core control panel.The utility model compares with prior art, using millimeter wave sensor, the ability of penetration is strong, sealed box body is not influenced by steam, foam, dust, strong anti-interference, suitable for the installation structure of ton barrel top, without opening, directly installed in ton barrel top, avoid leakage risk, convenient to install.

Description

Technical Field

[0001] This utility model relates to a detection device, and more particularly to a liquid level detection device. Background Technology

[0002] Intermediate Bulk Containers (IBCs), as standard large containers, are widely used in the chemical, food, and pharmaceutical industries for storing and transporting liquid materials. Currently, the following methods are mainly used to measure the liquid level inside IBCs:

[0003] Manual measurement: This requires opening the bucket lid and inserting a measuring tape, which is inefficient and can easily introduce contamination. For toxic or corrosive liquids, it poses a risk to personal safety.

[0004] Pressure level gauges: require installation through openings in the bottom or side wall of the tank, making installation complex, posing a risk of leakage, and their measurement results are affected by changes in liquid density and static pressure.

[0005] Ultrasonic level gauges: These are non-contact measurement devices, which are easily affected by steam, foam, dust, and temperature gradients inside the tank, resulting in poor measurement stability and limited accuracy.

[0006] Radio frequency admittance and capacitive level gauges: These typically require contact with liquid or close contact with the tank wall, have high installation requirements, and are easily affected by material adhesion and buildup.

[0007] The above measurement methods all have the following shortcomings: complex installation, requiring modification of the tank body, and posing a risk of leakage; measurement results are easily affected by the characteristics of the medium and environmental factors such as steam, foam, and temperature; they cannot achieve remote, real-time, and multi-point centralized monitoring; existing millimeter-wave radar equipment is not optimized for the structure of ton tanks, is inconvenient to install, has high power consumption, and is difficult to apply on a large scale. Utility Model Content

[0008] The purpose of this invention is to provide a millimeter-wave liquid level detection device for ton containers. The technical problems to be solved are convenient installation, accurate measurement, good protection, and support for remote monitoring.

[0009] The present invention adopts the following technical solution: a millimeter-wave ton liquid level detection device, which is equipped with a sealed box, a battery inside the sealed box that is connected to the core control board to provide power for control, a button board that is connected to the core control board to start operation, and a millimeter-wave sensor that is connected to the core control board.

[0010] The box of this utility model is a cube, consisting of an upper shell and a lower shell. The box is mounted on a bracket, and 3M adhesive is attached to the bottom of the mounting bracket. The silicone button is mounted on the upper shell. The upper shell has a concave cross-section, and the lower shell is flat. A lower shell sealing ring is provided on the edge of the lower shell.

[0011] The battery and battery pad of this utility model are connected.

[0012] The upper shell of this invention has a left battery and a right battery respectively arranged on both sides. A core control board is arranged between the left battery and the right battery, and a millimeter-wave sensor is arranged between the core control board and the lower shell.

[0013] The upper side of the upper shell of this utility model is provided with a silicone button, and there is a button plate below the silicone button.

[0014] The left and right batteries of this invention constitute a 4-7.2V battery power supply.

[0015] The external dimensions of the sealed box of this utility model are 115mm×115mm×31.7mm.

[0016] The millimeter-wave ton-barrel liquid level detection device of this invention communicates with the Internet of Things platform using Message Queue Telemetry Transmission (MQTT).

[0017] The IoT platform of this invention establishes a communication connection with the mobile client via Message Queue Telemetry Transmission (MQTT).

[0018] Compared with the prior art, this utility model adopts a millimeter-wave sensor, which has strong penetration capability. The sealed box is not affected by steam, foam, or dust, and has strong anti-interference. It is suitable for the installation structure on the top of the ton container, without the need for drilling, and can be directly installed on the top of the ton container, avoiding the risk of leakage and making installation convenient. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the connection between this utility model and the Internet of Things.

[0020] Figure 2 This is a schematic diagram of the core control board of this utility model.

[0021] Figure 3 This is a flowchart of the process of this utility model.

[0022] Figure 4 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0024] like Figure 4As shown, the millimeter-wave liquid level detection device (equipment) of this utility model has a cubical box body, which is composed of an upper shell 11 and a lower shell 3. The box body is mounted on a bracket 2, and a waterproof pad 12 is provided between the box body and the bracket 2. A 3M adhesive sticker 1 is attached to the bottom of the mounting bracket 2. The upper shell 11 has a concave cross-section, and the lower shell 3 is flat. Columnar left and right batteries 8 are respectively provided on both sides of the upper shell 11, and a core control board 7 is provided between the left and right batteries 8. A silicone button 4 is provided on one side of the upper part of the upper shell 11. A button plate 9 is mounted on the upper shell 11. Battery pads are mounted on the upper shell 11.

[0025] The millimeter-wave sensor 5 is installed in the middle of the lower shell 3; the silicone waterproof ring 4 is installed on the edge of the lower shell 3. The upper shell 11 and the lower shell 3 are connected by the silicone waterproof ring 4 to form a sealed box, which provides good protection for the millimeter-wave sensor 5, the core control board 7 and the battery 8 installed inside.

[0026] Waterproof pad 12 is installed on mounting bracket 2, and 3M adhesive tape 1 is attached to the bottom of mounting bracket 2, serving both waterproofing and fixing purposes.

[0027] The millimeter-wave sensor 5, the silicone key switch 10, and the core control board 7 are electrically connected. The left battery 8 and the right battery 8 supply power to the millimeter-wave sensor 5 and the core control board 7. The left battery 8 and the right battery 8 constitute a 4-7.2V battery power supply.

[0028] The millimeter-wave sensor 5, silicone key switch 10, core control board 7, left battery 8, and right battery 8 are housed within a sealed enclosure, forming a compact device. The external dimensions of the sealed enclosure are 115mm × 115mm × 31.7mm, allowing for flexible and convenient installation. It is suitable for installation on top of standard ton containers without requiring modification of the container body, thus avoiding the risk of leakage. When measuring the liquid level inside the ton container, it offers interference resistance, non-contact operation, and high accuracy.

[0029] like Figure 1 As shown, the device and the IoT platform communicate using Message Queuing Telemetry Transmission (MQTT). The IoT platform and the mobile client establish a communication connection via MQTT.

[0030] like Figure 2 As shown, the core control board 4 is equipped with a WiFi communication module, which connects to the millimeter-wave sensor 8, the NTC temperature acquisition module, the low-power control circuit, and the battery voltage acquisition module. In this embodiment, the WiFi communication module, the millimeter-wave sensor 8, the NTC temperature acquisition module, the low-power control circuit, and the battery voltage acquisition module all adopt existing technologies.

[0031] The equipment periodically collects data on the liquid level in the container, the equipment temperature, and the battery charge, and reports this information to the IoT platform via the MQTT protocol. Once completed, it enters a low-power mode.

[0032] The IoT platform receives data reported by devices, stores, analyzes, and identifies anomalies, and supports historical data queries and alarm push notifications.

[0033] The mobile client communicates with the IoT platform via the MQTT protocol to view real-time data on liquid level, temperature, and power, receive alarm information, and remotely configure equipment parameters.

[0034] The millimeter-wave sensor 8 emits electromagnetic waves and receives the echoes, calculating the liquid level height based on the time difference. The control circuit performs temperature compensation to ensure measurement accuracy and stability. Data is uploaded to the platform via a WiFi communication module for remote monitoring; after data reporting is complete, the device enters a low-power mode.

[0035] like Figure 3 As shown, the device's operation process is as follows: Upon power-on, it checks whether the power button has been pressed or the wake-up time has been reached. If either of these conditions is met, it enters the main system code; otherwise, it re-enters sleep / power-off state. Upon entering wake-up, the device first initializes, then samples liquid level, temperature, and voltage data. If the data is abnormal, it will report even before the reporting time has been reached. If the data is normal, it determines whether to perform network reporting based on the preset reporting time. If network connection is required, it checks for network configuration information. If not, it enters the infrastructure AP mode to allow the user to perform network configuration. If so, it enters the working STA mode to perform network reporting. After the judgment and execution are completed, it re-enters sleep / power-off state.

[0036] This utility model adopts an integrated low-power device structure, suitable for installation on the top of ton containers. No drilling is required; it can be directly installed on the top of the container, avoiding leakage risks and offering convenient installation. It uses a millimeter-wave sensor with strong penetration, unaffected by steam, foam, or dust, and exhibits strong anti-interference capabilities. A timed wake-up and sleep mechanism extends battery life. Remote connection with IoT platforms and mobile clients enables remote monitoring. Communication methods can be replaced with 4G Cat.1 or NB-IoT low-power wide-area network, suitable for scenarios without WiFi coverage. Power supply can be expanded to include solar panels and / or batteries, suitable for long-term outdoor use. The sensor can be selected from different frequency bands of millimeter-wave radar, such as 60GHz and 77GHz, to adapt to different media and measurement range requirements. Installation methods include magnetic or clamp-type, adaptable to different ton container diameters and materials, and suitable for various liquid media, including corrosive and high-viscosity liquids.

Claims

1. A millimeter-wave liquid level detection device for a ton container, characterized in that: The millimeter-wave ton liquid level detection device is equipped with a sealed box, and a battery (8) is installed inside the sealed box and connected to the core control board (7) to provide power for control. The button board (9) is connected to the core control board (7) to start working, and the millimeter-wave sensor (5) is connected to the core control board (7).

2. The millimeter-wave ton-shaped liquid level detection device according to claim 1, characterized in that: The box is a cube, consisting of an upper shell (11) and a lower shell (3). The box is mounted on a bracket (2). The bottom of the mounting bracket (2) is covered with 3M adhesive tape (1). The silicone button (10) is mounted on the upper shell (11). The upper shell (11) has a concave cross section. The lower shell (3) is flat. The lower shell (3) has a lower shell sealing ring (4) on its edge.

3. The millimeter-wave ton-shaped liquid level detection device according to claim 2, characterized in that: The battery (8) is connected to the battery pad (6).

4. The millimeter-wave ton-shaped liquid level detection device according to claim 3, characterized in that: The upper shell (11) has a left battery (8) and a right battery (8) respectively on its inner sides. A core control board (7) is set between the left battery (8) and the right battery (8). A millimeter-wave sensor (5) is set between the core control board (7) and the lower shell (3).

5. The millimeter-wave ton-shaped liquid level detection device according to claim 4, characterized in that: On the upper side of the upper shell (11), there is a silicone button (10), and below the silicone button (10) is a button plate (9).

6. The millimeter-wave ton-shaped liquid level detection device according to claim 5, characterized in that: The left battery (8) and the right battery (8) together form a 4-7.2V battery power supply.

7. The millimeter-wave ton-shaped liquid level detection device according to claim 6, characterized in that: The external dimensions of the sealed box are 115mm × 115mm × 31.7mm.

8. The millimeter-wave ton-shaped liquid level detection device according to claim 1, characterized in that: The millimeter-wave ton liquid level detection equipment communicates with the Internet of Things platform using Message Queue Telemetry Transmission (MQTT).

9. The millimeter-wave ton-shaped liquid level detection device according to claim 8, characterized in that: The IoT platform and the mobile client establish a communication connection via Message Queue Telemetry Transmission (MQTT).

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