Fresh meat moisture detection device

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By designing an automated fresh meat moisture detection device and using a microcontroller and needle electrodes for multiple acquisitions, the problem of insufficient conductivity detection accuracy was solved, and efficient and accurate detection was achieved on the assembly line.

CN223449860UActive Publication Date: 2025-10-17SHANGHAI JIULI FOOD CO LTD

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Patent Information

Application Number: CN202422252192.7
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-09-13
Publication Date: 2025-10-17
Estimated Expiration: 2034-09-13

AI Technical Summary

Technical Problem

Existing meat moisture detection devices use conductivity detection with insufficient accuracy, which may lead to errors in the detection results, and independent devices are difficult to use on the production line.

Method used

A fresh meat moisture detection device was designed. It adopted an automated control system, used a microcontroller and needle electrodes for multiple data acquisition, combined with temperature processing and data acquisition circuits, and generated electrical signals through an AC voltage generator for accurate detection.

Benefits of technology

It realizes the automation and accuracy of meat moisture detection, can be used on the assembly line, reduces mechanical switch errors, and improves detection efficiency and accuracy.

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Abstract

The utility model provides a moisture detection device for fresh meat, which relates to the technical field of food detection and comprises a transportation table, a driving device, a detection control device, a support frame and a display, the conveying table is used for conveying a food sample to be detected to an area to be detected, and the driving device is used for driving the conveying table; the detection control device is arranged on the supporting frame and comprises an alternating-current voltage generator, an acquisition probe, a microcontroller and a key module, the alternating-current voltage generator is electrically connected with the acquisition probe, the acquisition probe, the key module and the driving device are all electrically connected with the microcontroller, and the detection control device is arranged on the supporting frame. The alternating voltage generator is used for generating alternating voltage, and the key module is used for controlling the operation speed of the power source and the operation speed of the conveying table. The display is electrically connected with the microcontroller, the display is used for displaying the detection parameters, and the device has the advantages of being high in automation degree, more accurate in data collection and high in adaptability.

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Description

TECHNICAL FIELD

[0001] The utility model relates to food detection technical field, concretely relates to a fresh meat moisture detection device. BACKGROUND

[0002] Traditional detection precision is higher using dry method, but time -consuming, and sample has destructiveness, therefore, need a detection means can effectively fast determination whether water injection in beef, more common in daily life, and based on resistance method detects the meat moisture convenient and fast, but the precision of the existing meat moisture detection device using conductivity detection is insufficient, resulting in the detection result may exist error, and independent detection device is difficult to apply to the flow line.

[0003] Summarized above, how researches the fresh meat moisture detection device that can automatic accurate detection of meat moisture, this is the technical problem that present technical field needs to solve. UTILITY MODEL CONTENT

[0004] The utility model provides a fresh meat moisture detection device for the above-mentioned problems and demands.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: a fresh meat moisture detection device, comprising: transport platform, drive device, detection control device, support frame and display,

[0006] The transport platform is used for transporting food sample to be detected to the detection area, and the drive device is used for driving the transport platform.

[0007] The detection control device is arranged on the support frame, and the detection control device comprises an alternating voltage generator, a collection probe, a microcontroller and a key module, the alternating voltage generator is electrically connected with the collection probe, the collection probe, the key module and the drive device are all electrically connected with the microcontroller, the alternating voltage generator is used to generate alternating voltage, and the key module is used to control the operation speed of the power supply and the transport platform.

[0008] The display is electrically connected with the microcontroller, and the display is used to display detection parameters.

[0009] Further, the transport platform comprises a base, a detection table, an electric sliding rail and a sample carrier, the detection table is arranged on the base, the electric sliding rail is installed on the detection table, the sample carrier bottom is installed on the upper rail of the electric sliding rail, and the support frame is fixed on the detection table.

[0010] Further, the driving device comprises a motor driver, an input end of the motor driver is electrically connected with an output end of the microcontroller, and an output end of the motor driver is connected with a motor of the electric slide rail.

[0011] Further, the collecting probe comprises a plurality of pairs of needle electrodes, an analog switch and a temperature sensor, the plurality of pairs of needle electrodes are electrically connected with the AC voltage generator through the analog switch, when the analog switch is turned on, a signal reaches the needle measuring electrode from the output end of the generator through a coupling capacitor C1 and an adjustable resistor R1, and a control end of the analog switch is electrically connected with a signal control end of the microcontroller.

[0012] Further, the detection control device further comprises a temperature processing circuit and a data acquisition circuit, the temperature processing circuit comprises a temperature processing chip and an upper pull resistor unit, an output end of the temperature sensor is electrically connected with a signal input end of the temperature processing chip, and a signal output end of the temperature processing chip is electrically connected with a signal input end of the microcontroller.

[0013] The data acquisition circuit comprises a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a diode D1, a diode D2, a capacitor C2, an operational amplifier U1 and an operational amplifier U2, one end of the resistor R2 is connected with an electrode, the other end of the resistor R2 is connected with a negative electrode of the diode D1 and a positive electrode of the diode D2, the positive electrode of the diode D1 is grounded, the negative electrode of the diode D2 is connected with one end of the resistor R3, a positive electrode of the operational amplifier U1 and one end of the capacitor C2, the other end of the resistor R3 is connected with the other end of the capacitor C2 and then grounded, the negative electrode of the operational amplifier U1 is connected with an output end of the operational amplifier U1 and one end of the resistor R4, the other end of the resistor R4 is connected with a positive electrode of the operational amplifier U2, the negative electrode of the operational amplifier U2 is connected with one end of the resistor R6 and one end of the resistor R7, the resistor R7 is grounded, and the output end of the operational amplifier U2 is connected with one end of the resistor R5 and then connected with an AD conversion end of the microcontroller, and the other end of the resistor R5 is electrically connected with the other end of the resistor R4.

[0014] Further, the key module comprises a power control key and a speed control key.

[0015] From the above technical scheme, it can be seen that the beneficial effects of the utility model are as follows:

[0016] 1. The utility model can automatically and accurately detect the moisture of meat, adopts an automatic control system, so that it can be applied to a flow line, and cooperates with an intelligent production line to complete an automatic production inspection process.

[0017] 2. The utility model discloses a microcontroller control analog switch switches the on of a plurality of pairs of collection electrodes, achieves the purpose of multiple collection, makes the collection data more accurate, and is more convenient, and can also avoid the error caused by the switching speed and the jitter of mechanical switch.

[0018] In addition to the purposes, features and advantages described above, the most preferred embodiments of the present application will be described in more detail below with reference to the accompanying drawings, so that the features and advantages of the present application can be easily understood. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings required to be used in the description of the embodiments of the present application or the prior art will be briefly introduced below, wherein the drawings are only used to show some embodiments of the present application, and not to limit all embodiments of the present application to this.

[0020] Fig. 1 It is a component structure schematic view of the fresh meat moisture detection device of the utility model.

[0021] Fig. 2 It is a circuit structure schematic view of the data acquisition circuit in the utility model. DETAILED DESCRIPTION

[0022] In order to make the purposes, technical solutions and advantages of the present application more clear and explicit, the present application will be further described in detail below with reference to the embodiments and drawings. Herein, the illustrative embodiments of the present application and their descriptions are used to explain the present application, but not as the limitation of the present application.

[0023] In order to make the purposes, technical solutions and advantages of the present application more clear and explicit, the present application will be further described in detail below with reference to the embodiments and drawings. Herein, the illustrative embodiments of the present application and their descriptions are used to explain the present application, but not as the limitation of the present application.

[0024] The raw steak is a whole piece of beef made of fresh or frozen divided beef (with or without bone) as raw material, through processes such as trimming, slicing, packaging and quick freezing (or not quick freezing). Figs. 1-2As shown, the fresh meat moisture detection device comprises a conveying table, a driving device, a detection control device, a support frame and a display. The conveying table is used to convey food samples to be detected to a detection area. The driving device is used to drive the conveying table. The conveying table comprises a base, a detection table, an electric sliding rail and a sample carrier. The detection table is arranged on the base. The electric sliding rail is installed on the detection table. The sample carrier is installed at the bottom of the upper rail of the electric sliding rail. The support frame is fixed on the detection table. During the conveying process, the safety preservation temperature of the food samples to be detected should be ensured to prevent nutrient loss or microbial growth. The raw materials should meet the relevant provisions of GB 2707 and GB / T 17238. The thickness of the steak slices should be uniform and not less than 1 cm.

[0025] The moisture content of raw steak is generally relatively low because it does not undergo additional moisture addition or processing. According to the QB / T 5442-2020 "Steak" industry standard, the moisture content of raw steak should not exceed 77g / 100g, which ensures the natural quality and taste of the steak. The moisture content of the steak has an important influence on the eating experience. The steak with moderate moisture content can maintain good tenderness and taste during frying, while the steak with too high or too low moisture content may affect its quality, therefore, the moisture content of the steak needs to be detected by the detection device.

[0026] In this embodiment, the detection device is installed in the detection area. The detection control device is arranged on the support frame, which is fixed on the conveying table. The detection control device comprises an alternating current voltage generator, a collection probe, a microcontroller and a key module. The alternating current voltage generator is electrically connected with the collection probe. The collection probe, the key module and the driving device are electrically connected with the microcontroller. The alternating current voltage generator is used to generate alternating current voltage. The key module is used to control the power on-off and the running speed of the conveying table. The key module comprises a power control key and a speed control key. The display is electrically connected with the microcontroller. The display is used to display the detection parameters.

[0027] The microcontroller controls the power on-off and the running speed of the conveying table according to the electrical signals sent by the key module, to ensure the safety of the food in the whole processing flow.

[0028] The driving device comprises a motor driver. The input end of the motor driver is electrically connected with the output end of the microcontroller. The output end of the motor driver is connected with the motor of the electric sliding rail.

[0029] In the embodiment, the motor driver controls the transport speed of the sample carrier on the slide rail according to the received microcontroller signal, the sample carrier is a tray, and the detection control device is arranged above the detection area to detect the electrical signal through the collection probe.

[0030] Specifically, the collection probe comprises a plurality of pairs of needle-shaped electrodes, an analog switch and a temperature sensor, the plurality of pairs of needle-shaped electrodes are electrically connected with the AC voltage generator through the analog switch, when the analog switch is turned on, the signal reaches the needle-shaped measuring electrode from the output end of the AC voltage generator through the coupling capacitor C1 and the adjustable resistor R1, and the control end of the analog switch is electrically connected with the signal control end of the microcontroller.

[0031] The needle-shaped electrode is made of steel plated with nickel, the microcontroller is used to control the analog switch to automatically switch the collection electrode and turn on the operation, so as to realize the purpose of collecting multiple groups of data, obtain the moisture content information according to the change of the detection voltage, make the collected data more accurate, and avoid the error caused by the switching speed and jitter of the mechanical switch, and the microcontroller is an STM32 controller.

[0032] The detection control device further comprises a temperature processing circuit and a data acquisition circuit, the temperature processing circuit comprises a temperature processing chip and a pull-up resistor unit, the output end of the temperature sensor is electrically connected with the signal input end of the temperature processing chip, and the signal output end of the temperature processing chip is electrically connected with the signal input end of the microcontroller; the data acquisition circuit comprises a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a diode D1, a diode D2, a capacitor C2, an operational amplifier U1 and an operational amplifier U2, one end of the resistor R2 is connected with an electrode, the other end of the resistor R2 is connected with the negative electrode of the diode D1 and the positive electrode of the diode D2 in parallel, the positive electrode of the diode D1 is grounded, the negative electrode of the diode D2 is connected with one end of the resistor R3, the positive electrode of the operational amplifier U1 and one end of the capacitor C2 in parallel, the other end of the resistor R3 is connected with the other end of the capacitor C2 and then grounded, the negative electrode of the operational amplifier U1 is connected with the output end of the operational amplifier U1 and one end of the resistor R4 in parallel, the other end of the resistor R4 is connected with the positive electrode of the operational amplifier U2 in parallel, the negative electrode of the operational amplifier U2 is connected with one end of the resistor R6 and one end of the resistor R7 in parallel, the resistor R7 is grounded, and the output end of the operational amplifier U2 is connected with one end of the resistor R5 and then connected with the AD conversion end of the microcontroller, and the other end of the resistor R5 is electrically connected with the other end of the resistor R4.

[0033] Because the change of temperature will affect the change of conductive data, therefore, the temperature needs to be monitored, the temperature sensor adopts thermocouple, the temperature sensor is electrically connected with the microcontroller, is used for sending the temperature change signal detected to the microcontroller, the microcontroller controls the display to display the temperature information, the system further includes a power module, the power module can provide the required voltage source for the system.

[0034] In the embodiment, the AC voltage generator adopts a multi-resonance oscillator, a signal reaches the needle-shaped measuring electrode from the output end of the generator through a coupling capacitor C1 and an adjustable resistor R1, and then is rectified by diodes D1 and D2, filtered by a resistor capacitor, and then the microcontroller processes the collected data to obtain the water content of the fresh meat product. The water content of beef has an important influence on the eating experience. For example, although the cooked beef has a tender taste, it is easy to shrink after frying due to the high water content; and the raw beef can retain more beef original flavor and meat fiber feeling. The detection device can quickly and safely detect the water content of the beef to determine whether the water content of the beef is too high.

[0035] It should be noted that the embodiments of the utility model only realize the preferred mode of the utility model, and the changes that only belong to the overall concept of the utility model and are obvious should all belong to the protection range of the utility model.

Claims

1. A fresh meat moisture detection device, characterized in that: include: Transport platform, drive unit, detection and control unit, support frame and display; The transport platform is used to transport the food sample to be tested to the inspection area, and the driving device is used to drive the transport platform; The detection control device is arranged on the support frame, and the support frame is fixed to the transport platform. The detection control device includes an AC voltage generator, a collection probe, a microcontroller and a key module. The AC voltage generator is electrically connected to the collection probe, and the collection probe, the key module and the driving device are all electrically connected to the microcontroller. The AC voltage generator is used to generate an AC voltage, and the key module is used to control the power supply and the operating speed of the transport platform; The display is electrically connected to the microcontroller, and is used to display detection parameters.

2. The fresh meat moisture detection device according to claim 1, characterized in that: The transport platform includes a base, a detection platform, an electric slide rail and a sample carrier. The detection platform is set on the base, the electric slide rail is installed on the detection platform, the bottom of the sample carrier is installed on the upper rail of the electric slide rail, and the support frame is fixed on the detection platform.

3. The fresh meat moisture detection device according to claim 2, characterized in that: The driving device includes a motor driver, an input end of the motor driver is electrically connected to an output end of the microcontroller, and an output end of the motor driver is connected to a motor of the electric slide rail.

4. The fresh meat moisture detection device according to claim 3, characterized in that: The acquisition probe includes several pairs of needle electrodes, an analog switch and a temperature sensor. The several pairs of needle electrodes are electrically connected to the AC voltage generator through the analog switch. When the analog switch is turned on, the signal is transmitted from the output end of the generator through the coupling capacitor C1 and the adjustable resistor R1 to reach the needle measurement electrodes. The control end of the analog switch is electrically connected to the signal control end of the microcontroller.

5. The fresh meat moisture detection device according to claim 4, characterized in that: The detection and control device further includes a temperature processing circuit and a data acquisition circuit, wherein the temperature processing circuit includes a temperature processing chip and a pull-up resistor unit, the output end of the temperature sensor is electrically connected to the signal input end of the temperature processing chip, and the signal output end of the temperature processing chip is electrically connected to the signal input end of the microcontroller; The data acquisition circuit includes a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a diode D1, a diode D2, a capacitor C2, an operational amplifier U1 and an operational amplifier U2, one end of the resistor R2 is connected to the electrode, the other end of the resistor R2 is connected in parallel with the cathode of the diode D1 and the anode of the diode D2, the anode of the diode D1 is grounded, the cathode of the diode D2 is connected in parallel with one end of the resistor R3, the anode of the operational amplifier U1 and one end of the capacitor C2, the resistor R The other end of the operational amplifier U1 is connected to the other end of the capacitor C2 and then grounded, the negative electrode of the operational amplifier U1 is connected in parallel with the output end of the operational amplifier U1 and one end of the resistor R4, the other end of the resistor R4 is connected in parallel with the positive electrode of the operational amplifier U2, the negative electrode of the operational amplifier U2 is connected in parallel with one end of the resistor R6 and one end of the resistor R7, the resistor R7 is grounded, the output end of the operational amplifier U2 is connected in parallel with one end of the resistor R5 and then connected to the AD conversion end of the microcontroller, and the other end of the resistor R5 is electrically connected to the other end of the resistor R4.

6. The fresh meat moisture detection device according to claim 1, characterized in that: The button module includes a power control button and a speed control button.