High-frequency pressure acquisition module and sampling container
Through the high and low frequency switching components triggered by sensor signals, the problem of insufficient low frequency acquisition and waste of energy consumption of high frequency acquisition is solved, and efficient pressure acquisition and energy consumption saving is achieved.
Patent Information
- Application Number
- CN202420482922.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-12
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-03-12
AI Technical Summary
In the prior art, low-frequency timing acquisition cannot capture the user's detailed feeding mode and frequency, while high-frequency timing acquisition wastes energy consumption and reduces component life.
By using the status switching component and the control module, high and low frequency switching is triggered according to the sensor signal, the control module controls the interruption of the status switching component, and realizes switching between the high-frequency acquisition period and the low-frequency acquisition period, saving energy consumption.
It realizes high-frequency acquisition when needed, saves energy consumption while ensuring information integrity and extends component life.
Smart Images
Figure CN223217793U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pressure collection, in particular to a high-frequency pressure collection module and a sampling container. Background Art
[0002] To accurately capture a user's eating habits, including eating patterns, pressure sensors are added to food containers to periodically collect information about food consumption and upload it to the backend for intelligent analysis. However, there are several issues: 1. Low-frequency periodic data collection fails to capture a user's detailed patterns and frequency; 2. High-frequency periodic data collection can more thoroughly record a user's eating activities, including the time, frequency, and duration of eating. However, during extended periods of inactivity, the system continues to operate at a high frequency, wasting energy and reducing the lifespan of components. Utility Model Content
[0003] In order to solve the above problems, the purpose of this utility model is to provide a high-frequency pressure acquisition module and sampling container, which can increase the acquisition frequency by triggering the user to start eating, thereby solving the problem of insufficient collection or energy waste caused by the acquisition module collecting at a fixed time and frequency.
[0004] The utility model is achieved through the following technical solutions:
[0005] A high-frequency pressure acquisition module includes a power module, a control module, and an acquisition module. The power module is connected to an external power supply and outputs an internal power supply after reducing the voltage of the external power supply; the control module is connected to the output end of the power module, and the power module supplies power to the control module; the acquisition module includes a sensor, an acquisition component, and a state switching component connected in sequence; the acquisition component is connected to the power module and the control module respectively, and the state switching component is connected to the control module; the acquisition component is used to transmit the acquisition signal of the sensor to the control module, and the control module controls the opening and closing of the state switching component according to the received acquisition signal. The acquisition component is used to control the acquisition frequency according to the opening and closing of the state switching component.
[0006] Furthermore, the state switching component includes an NPN transistor, the base of which is connected to the control module, the collector is connected to the output end of the power supply module through a resistor, and the emitter is grounded; the collector of the NPN transistor and the common end of the resistor are also connected to the digital input pin RATE of the acquisition component.
[0007] Furthermore, the acquisition component includes an acquisition chip, the clock pin PD_SCK and data pin DOUT of the acquisition chip are connected to the control module, the digital input pin RATE of the acquisition chip is connected to the state switching component, and the acquisition chip controls the acquisition frequency of the acquisition chip according to the opening and closing of the state switching component.
[0008] Furthermore, the low frequency of the acquisition frequency is 7 Hz-15 Hz, and the high frequency of the acquisition frequency is 70 Hz-100 Hz.
[0009] Furthermore, the power supply end of the sensor is connected to the output end of the power module through a switch tube, and the base of the switch tube is connected to the BASE pin of the acquisition chip.
[0010] Furthermore, the switch tube is a PNP transistor, the base of the switch tube is connected to the BASE pin of the acquisition chip, the emitter is connected to the output end of the power module, and the collector is connected to the power end of the sensor.
[0011] Furthermore, the acquisition module also includes a SOC chip, which is connected to the data transceiver pins RXD and TXD of the control module. The SOC chip is used to receive data transmitted by the control module and obtain mode data.
[0012] Furthermore, the acquisition module also includes a wireless transmission module, which is connected to the output end of the power module and the SOC chip respectively, and is used to transmit the mode data transmitted by the SOC chip to the terminal platform.
[0013] A sampling container, comprising the above-mentioned high-frequency pressure acquisition module, wherein a sensor is arranged at the bottom of the sampling container.
[0014] Furthermore, the sampling container also includes an infrared sensor connected to the control module. The infrared sensor is arranged on the side wall or the bowl mouth of the sampling container to detect whether the user is approaching and send a user position signal to the control module.
[0015] Compared with the prior art, the technical solution of the present utility model and its beneficial effects are as follows:
[0016] (1) The acquisition component of the present invention is used to transmit the acquisition signal of the sensor to the control module. The control module controls the opening and closing of the state switching component according to the received acquisition signal. The acquisition component is used to control the acquisition frequency according to the opening and closing of the state switching component. As a result, the acquisition circuit uses the sensor acquisition signal as a trigger condition to trigger the control module to control the opening and closing of the state switching component, thereby controlling the acquisition frequency. This eliminates the need for the acquisition circuit to be in a high-frequency acquisition state for a long time, saving energy. At the same time, when acquisition is really needed, it can perform high-frequency acquisition to ensure the integrity of the information.
[0017] (2) The state switching component of the utility model is turned on or off according to the high or low level of the control module, thereby controlling the digital input pin RATE of the acquisition chip to be at a high level or a low level, thereby controlling the switching of high and low frequency acquisition. The control logic is simple and the response rate is fast. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a principle block diagram of a high-frequency pressure acquisition module provided by an embodiment of the present utility model;
[0019] Figure 2 This is a schematic diagram of a power module provided by an embodiment of the present utility model;
[0020] Figure 3 This is a circuit diagram of the acquisition module provided by the embodiment of the utility model;
[0021] Figure 4 This is a circuit diagram of a high-frequency pressure acquisition module provided by an embodiment of the present utility model;
[0022] Figures 5 to 8 for Figure 4 A partial enlarged view of . DETAILED DESCRIPTION
[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, rather than all the embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.
[0024] See Figure 1A high-frequency pressure acquisition module comprises a power module, a control module, and an acquisition module. The power module connects to an external power supply and steps down the voltage of the external power supply to output internal power. The control module is connected to the output terminal of the power module, which supplies power to the control module. The acquisition module comprises a sensor, an acquisition component, and a state switching component, all connected in sequence. The acquisition component is connected to the power module and the control module, respectively, and the state switching component is connected to the control module. The acquisition component transmits the sensor acquisition signal to the control module, which controls the switching of the state switching component based on the received acquisition signal. The acquisition component controls the acquisition frequency based on the switching of the state switching component. This allows the acquisition circuit to trigger the control module to control the switching of the state switching component, thereby controlling the acquisition frequency, based on the sensor acquisition signal. This eliminates the need for the acquisition circuit to maintain high-frequency acquisition for extended periods, saving energy. Furthermore, when acquisition is truly needed, high-frequency acquisition can be performed to ensure information integrity. In this embodiment, the low-frequency acquisition frequency is 7Hz-15Hz, and the high-frequency acquisition frequency is 70Hz-100Hz. More preferably, the low frequency of the acquisition frequency is 10 Hz, and the high frequency of the acquisition frequency is 80 Hz.
[0025] participate Figure 2 The power module includes a voltage drop chip U811, which adjusts the external 5V power supply to 3.3V before outputting it.
[0026] See Figure 3 The acquisition module includes an acquisition chip U807. The clock pin PD_SCK and data pin DOUT of the acquisition chip U807 are connected to the control module. The digital input pin RATE of the acquisition chip U807 is connected to the state switching component. The acquisition chip U807 changes the acquisition frequency according to the opening and closing of the state switching component.
[0027] The state switching component includes a transistor Q104. The base of the NPN transistor Q104 is connected to the control module, the collector is connected to the output end of the power module through the resistor R849, and the emitter is grounded; the collector of the NPN transistor Q104 and the common end of the resistor R849 are also connected to the digital input pin RATE of the acquisition chip U807.
[0028] The control module's control signal SW_CTL controls the switching state of transistor Q104. When SW_CTL outputs a high level, Q104 is turned on, the 15pin of the acquisition chip U807 is grounded and at a low level, and the acquisition chip U807 is in a low-frequency data acquisition state. When SW_CTL outputs a low level, transistor Q104 is turned off, the 15pin of the acquisition chip U807 is at a high level, and U807 switches to a high-frequency data acquisition state.
[0029] The sensor's power supply is connected to the 3.3V output of the power module via a switch Q804. The base of the switch Q804 is connected to the BASE pin of the data acquisition chip U807. In this embodiment, the data acquisition chip U807 uses the HX711. The switch Q804 is a PNP transistor. The base of the switch Q804 is connected to the BASE pin of the data acquisition chip U807, the emitter is connected to the output of the power module, and the collector is connected to the power supply of the sensor.
[0030] The sensor of this embodiment adopts a four-wire pressure sensor. The positive electrode of the power supply is connected to the AVDD pin of the acquisition chip through the inductor FB703, the negative electrode of the power supply is grounded, and the signal line is connected to the input pins INNA and INPA of the acquisition chip.
[0031] See Figure 4 In conjunction with Figure 1 The acquisition module also includes a system-on-chip (SOC) chip, which is connected to the control module's data transceiver pins (RXD and TXD). The SOC chip receives data from the control module and derives pattern data. The SOC chip can then perform in-depth analysis based on this data, identifying key information such as the user's eating patterns, eating times, and food intake. Machine learning algorithms can gradually optimize the analysis model and improve its accuracy.
[0032] The acquisition module also includes a wireless transmission module, which is connected to the output end of the power module and the SOC chip respectively. The wireless transmission module is used to transmit the mode data transmitted by the SOC chip to the terminal platform, such as the user's mobile phone APP, so that the user can understand the user's habits more intuitively.
[0033] This embodiment also provides a sampling container, including the above-mentioned high-frequency pressure acquisition module. The pressure sensor is arranged at the bottom of the sampling container. When no user is eating, the acquisition chip performs low-frequency acquisition, and the data transmitted by the pressure sensor does not change significantly. When the data transmitted by the pressure sensor increases significantly or fluctuates significantly, it is judged as eating, and the control module controls the acquisition chip to enter the high-frequency acquisition state through the state switching component.
[0034] The sampling container of this embodiment also includes an infrared sensor, which is arranged on the side wall or the mouth of the sampling container. When it detects that a user is approaching, the position signal of the user is sent to the acquisition chip, and then to the control module. The control module inputs a high level to the state switching component, thereby controlling the acquisition chip to enter the high-frequency acquisition state.
[0035] The foregoing description shows and describes preferred embodiments of the present invention. It should be understood that the present invention is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Rather, the present invention can be used in various other combinations, modifications, and environments and can be modified within the scope of the present invention through the above teachings or techniques or knowledge in the relevant field. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention are intended to be protected by the claims appended hereto.
Claims
1. A high-frequency pressure acquisition module, characterized in that: include: A power supply module, which is connected to an external power supply and steps down the voltage of the external power supply to output an internal power supply; A control module, the control module is connected to the output end of the power module, and the power module supplies power to the control module; An acquisition module includes a sensor, an acquisition component, and a state switching component connected in sequence; the acquisition component is connected to the power module and the control module respectively, and the state switching component is connected to the control module; the acquisition component is used to transmit the acquisition signal of the sensor to the control module, and the control module controls the opening and closing of the state switching component according to the received acquisition signal. The acquisition component is used to control the acquisition frequency according to the opening and closing of the state switching component.
2. A high-frequency pressure acquisition module according to claim 1, characterized in that: The state switching component includes an NPN transistor, the base of which is connected to the control module, the collector is connected to the output end of the power module through a resistor, and the emitter is grounded; the collector of the NPN transistor and the common end of the resistor are also connected to the digital input pin RATE of the acquisition component.
3. The high-frequency pressure acquisition module according to claim 1, characterized in that: The acquisition component includes an acquisition chip, a clock pin PD_SCK and a data pin DOUT of the acquisition chip are connected to the control module, a digital input pin RATE of the acquisition chip is connected to the state switching component, and the acquisition chip controls the acquisition frequency of the acquisition chip according to the opening and closing of the state switching component.
4. A high-frequency pressure acquisition module according to claim 3, characterized in that: The low frequency of the acquisition frequency is 7 Hz-15 Hz, and the high frequency of the acquisition frequency is 70 Hz-100 Hz.
5. The high-frequency pressure acquisition module according to claim 3, characterized in that: The power supply end of the sensor is connected to the output end of the power supply module through a switch tube, and the base of the switch tube is connected to the BASE pin of the acquisition chip.
6. The high-frequency pressure acquisition module according to claim 5, characterized in that: The switch tube is a PNP transistor, the base of the switch tube is connected to the BASE pin of the acquisition chip, the emitter is connected to the output end of the power module, and the collector is connected to the power end of the sensor.
7. The high-frequency pressure acquisition module according to claim 1, characterized in that: It also includes a SOC chip, which is connected to the data transceiver pins RXD and TXD of the control module. The SOC chip is used to receive data transmitted by the control module and obtain mode data.
8. The high-frequency pressure acquisition module according to claim 7, characterized in that: It also includes a wireless transmission module, which is connected to the output end of the power module and the SOC chip respectively, and is used to transmit the mode data transmitted by the SOC chip to the terminal platform.
9. A sampling container, characterized in that: It comprises the high-frequency pressure acquisition module according to any one of claims 1 to 8, wherein the sensor is arranged at the bottom of the sampling container.
10. The sampling container according to claim 9, characterized in that: It also includes an infrared sensor connected to the control module. The infrared sensor is set on the side wall or the bowl mouth of the sampling container to detect whether the user is approaching and send a user position signal to the control module.