Threshold-variable positive feedback detection assembly and system based on gravity detector

Abstract

The invention discloses a threshold-variable positive feedback detection assembly and system based on a gravity detector, and relates to the technical field of gravity detection, and the positive feedback detection assembly comprises a gravity detector, a microcontroller and a positive feedback system which processes a signal after detecting the signal. A high-sensitivity gravity detector is installed at a specific position, a data acquisition system is constructed, the gravity change above the detector is monitored in real time, various real scenes are simulated, pressure data are collected, and the gravity change position is accurately positioned through a signal processing and analysis algorithm. The invention focuses on the help of a gravity detector to realize refined detection of gravity change, through innovative design, the detector not only can sensitively capture the gravity change and feed back the gravity change in time, but also has a flexible threshold regulation and control mechanism, provides an efficient and reliable solution for accurate measurement requirements under diversified application scenarios, and has wide application prospects. The method has obvious practical value and application prospect.

Description

Technical Field

[0001] The present invention relates to the field of gravity detection technology, and in particular to a threshold-variable positive feedback detection component and system based on a gravity detector. Background Art

[0002] In modern industrial production, accurate weight control and timely safety alarms are key links to ensure product quality and production safety. Gravity detection alarm systems have become important equipment in many industries. This system detects the weight of an object in real time through a high-precision sensor and converts the weight signal into an electrical signal for processing. After amplification, filtering, A / D conversion and other steps, the electrical signal is sent to the microprocessor for data analysis. The microprocessor determines whether the current weight exceeds the range based on the preset upper and lower weight limits, and sends out corresponding control signals accordingly. When the weight of the detected object exceeds or falls below the preset upper and lower limits, the gravity detection alarm system will automatically trigger an alarm and remind the operator through sound, light or digital display. However, in actual applications, how to improve the sensitivity of this system to perceive gravity changes has always been the focus of users.

[0003] In the prior art, the commonly used methods to improve the sensitivity of the gravity detection alarm system to perceive gravity changes are: optimizing hardware configuration, selecting high-performance processors, sensors and controllers, and improving the overall computing power and response speed of the system; improving software algorithms, optimizing control algorithms, and reducing waiting time; but during the use of the gravity detection alarm system, there will be some weak signals, and weak signals are easily affected by the environment. The above two methods cannot guarantee the system's ability to detect weak signals. Although weak signals can be amplified by signal amplifiers, weak signals also amplify interference noise while amplifying them, which also affects the system's perception of gravity changes; based on this, the present application proposes a threshold variable positive feedback detection component and system based on a gravity detector. Summary of the invention

[0004] The present invention provides a threshold-variable positive feedback detection component and system based on a gravity detector, aiming to improve the sensitivity of the system in sensing gravity changes.

[0005] The present invention provides the following technical solution: a threshold-variable positive feedback detection component based on a gravity detector, comprising a gravity detector, a microcontroller and a positive feedback system, wherein the gravity detector is connected to the microcontroller, and the microcontroller is connected to the positive feedback system; The gravity detector is used to detect the weight of the measured weight and upload the detected weight to the microcontroller; the microcontroller is used to determine whether the weight of the measured weight reaches a set threshold value. When the actual weight of the measured weight exceeds the threshold value, a trigger signal is emitted, and the positive feedback system receives the signal emitted by the microcontroller. The positive feedback system gives feedback on the actual weight situation according to the received signal to form an alarm mechanism; if the weight of the measured weight does not reach the threshold value, the signal will not be triggered, and no alarm will be generated, and the conventional state without special feedback will be maintained; The positive feedback system adopts positive feedback control technology to feed back part of the output signal to the input end, so that the input signal is enhanced and the system response is amplified, so that there is a stronger reaction to the slight change of the input signal; and when the output signal climbs to a preset critical value, the positive feedback control system is immediately triggered to respond to the signal; if the output signal has not yet reached the preset critical value, the positive feedback system will remain silent and will not produce any response.

[0006] Preferably, the gravity detector is a high-precision gravity detector with A / D conversion function, two-way analog channel input function, and an internally integrated programmable amplifier for high-precision conversion of weak analog signals.

[0007] Preferably, the microcontroller is based on an AVR architecture, an analog pin of the microcontroller is connected to a gravity detector, and a gravity value judgment code with a flexibly adjustable threshold is built in.

[0008] Preferably, the data captured by the gravity detector is transmitted to the microcontroller in the form of an electrical signal, and the gravity detector communicates with the microcontroller via a simple pulse signal and outputs a digital signal.

[0009] Preferably, when the positive feedback detection assembly is in use, the installation position of the gravity detector is fixed, and a data acquisition system is constructed to detect gravity changes above the gravity detector in real time.

[0010] A positive feedback detection system based on a positive feedback detection component with a variable threshold value of a gravity detector comprises the following steps: At the beginning of the experiment, a critical threshold is set, and then a heavy object with a mass infinitely close to the threshold is placed on a highly sensitive gravity detector with precise operations. The data captured by the gravity detector is quickly transmitted to the computer in the form of electrical signals and presented after being processed by complex algorithms. Theoretically, the screen reading will not exceed the threshold at this moment; then, the mass of the heavy object is gradually increased, and the screen reading is closely observed. When the reading exceeds the threshold, the microcontroller releases a signal and sounds an alarm. After the alarm is manually eliminated, the signal is reset; finally, the system enters the next detection cycle.

[0011] Preferably, not limited to gravity detection, the same type of components are suitable for pressure detection.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. The variable threshold positive feedback detection component and system based on gravity detector uses high-precision gravity detector to sense weak gravity changes. It covers positive feedback control technology to enhance detection sensitivity, and also incorporates variable threshold technology so that it can be flexibly adjusted according to the environment. At the same time, it involves sensor and signal processing technology to accurately collect, process and analyze signals, providing efficient and reliable solutions for precise measurement needs in diverse application scenarios.

[0013] 2. The variable threshold positive feedback detection component and system based on the gravity detector can collect pressure data by simulating a variety of real-life scenarios, and accurately locate the position of gravity changes through signal processing and analysis algorithms. It can effectively, quickly and accurately detect the gravity change points, and has significant practical value and application prospects.

[0014] 3. The variable threshold positive feedback detection component and system based on the gravity detector adopts positive feedback technology to send part of the output signal back to the input end, enhance the input signal, quickly amplify the system response, and have high sensitivity. It will have a relatively strong reaction to slight changes in the input signal, which can effectively improve the system's sensitivity to gravity changes. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A principle framework diagram of a positive feedback detection system of a variable threshold positive feedback detection component based on a gravity detector provided by the present invention; Figure 2 A detailed diagram of the working process of a positive feedback detection system of a variable threshold positive feedback detection component based on a gravity detector provided by the present invention; Figure 3 This is a schematic diagram of the gravity detector structure; Figure 4 Schematic diagram of the microcontroller. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] The present invention provides a threshold-variable positive feedback detection component based on a gravity detector, which basically consists of three parts, namely a gravity detector, a microcontroller and a positive feedback system, and aims to solve the problem of detecting a signal greater than a threshold and responding in time.

[0018] The gravity detector is a high-precision gravity detector with ultra-high precision and high resolution. It can perform A / D conversion and can perform high-precision conversion on weak analog signals. It has two analog channel input functions, which can effectively reduce common-mode interference. It has an internally integrated programmable amplifier, and its input circuit can be configured as a bridge sensor mode suitable for providing bridge voltage. It is an ideal front-end module for achieving high-precision and low-cost sampling, and its communication method is simple.

[0019] The microcontroller is based on the AVR architecture and adopts a simple and open source hardware design. It has a wealth of digital and analog input and output pins, which can easily connect external devices such as sensors and actuators. The digital pins can be used to read the switch status, etc. The analog pins can be connected to the gravity detector to obtain continuously changing data. Various functions can be realized through simple C / C++ programming. The built-in gravity value judgment code with flexible adjustable thresholds is written. The different thresholds required for multiple tests of this component can be freely adjusted through programming. The function of this judgment code is: when the actual weight of the measured weight exceeds the threshold, the trigger signal will be emitted and the actual weight situation will be fed back to form an alarm mechanism; if the weight of the measured weight does not reach this threshold, the signal will not be triggered, no alarm will be generated, and the normal state without special feedback will be maintained.

[0020] The gravity detector is connected to the microcontroller. The connection relationship between the gravity detector and the microcontroller is as follows: connect the gravity detector and the microcontroller through the designed circuit, ensure that the ground pin of the gravity detector is stably connected to the ground pin of the microcontroller, and connect the power pin to the appropriate power supply terminal. After that, connect the serial port clock input pin of the gravity detector to the specific pin of the microcontroller, and the data output pin is also accurately connected.

[0021] From the above description, it can be seen that the gravity detector and the microcontroller have achieved accurate detection of gravity data, and at the same time have built a complete threshold setting and judgment system. On this basis, the data can be monitored continuously, and with the help of advanced algorithms and efficient models, in-depth analysis and intelligent processing of the monitoring data can be achieved. In this process, the data captured by the gravity detector is transmitted to the microcontroller in the form of electrical signals, and its communication method is simple. The gravity detector communicates with the microcontroller through simple pulse signals and outputs digital signals.

[0022] The microcontroller is connected to the positive feedback system, which receives the signal transmitted by the microcontroller. The positive feedback system gives feedback on the actual weight situation according to the received signal to form an alarm mechanism. The positive feedback system adopts positive feedback control technology, which can increase the system's gain and sensitivity to gravity changes, and is used to increase signal strength or speed up the process of the system reaching a certain state. The specific positive feedback control technology is: a part of the output signal is fed back to the input end, so that the input signal is strengthened and the system's response can be quickly amplified; the sensitivity is high, and there will be a relatively strong reaction to the slight change of the input signal, which can effectively improve the system's ability to detect weak signals, and when the output signal climbs to the preset critical value, the positive feedback system is immediately triggered to respond to the signal; if the output signal has not yet reached the preset critical value, the positive feedback system will remain silent and will not produce any response.

[0023] From the above description, it can be seen that the variable threshold positive feedback detection component based on the gravity detector proposed in this application has the following working principle: the gravity detector, which is a gravity sensitive element, senses the gravity change, and when the external gravity changes to a certain extent, the positive feedback mechanism is triggered. This mechanism can adjust the threshold according to the setting, enhance the signal, and make the detection component respond to gravity changes of different intensities more accurately and efficiently. The positive feedback detection component is suitable for multiple scenarios, such as engineering construction, geological settlement, etc.

[0024] When the positive feedback detection assembly is used, the gravity detector is installed in a fixed position, and a data acquisition system is constructed to detect the gravity changes above the gravity detector in real time. By simulating a variety of real-life scenarios, collecting pressure data, and accurately locating the gravity change position through signal processing and analysis algorithms. The results show that this method can effectively, quickly and accurately detect the gravity change point, and has significant practical value and application prospects.

[0025] In addition, the present invention provides a positive feedback detection system based on a positive feedback detection component with a variable threshold value of a gravity detector. The specific working steps of the positive feedback detection system are as follows: At the beginning of the experiment, a critical threshold is set, and then a heavy object with a mass infinitely close to the threshold is placed on a highly sensitive gravity detector with precise operations. The data captured by the gravity detector is quickly transmitted to the computer in the form of electrical signals and presented after being processed by complex algorithms. Theoretically, the screen reading will not exceed the threshold at this moment; then, the mass of the heavy object is gradually increased, and the screen reading is closely observed. When the reading exceeds the threshold, the microcontroller releases a signal and sounds an alarm. After the alarm is manually eliminated, the signal is reset; finally, the system enters the next detection cycle.

[0026] Furthermore, the positive feedback detection system is not limited to gravity detection, and the same type of components are suitable for pressure detection.

[0027] In summary, the present invention utilizes high-precision gravity detectors for precise measurements, covers positive feedback control technology to enhance detection sensitivity, and also incorporates variable threshold technology so that it can be flexibly adjusted according to the environment. At the same time, it involves sensors and signal processing technology to accurately collect, process and analyze signals, providing efficient and reliable solutions for precise measurement needs in a variety of application scenarios.

[0028] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field. Although the embodiments of the present invention have been shown and described, it is understood by ordinary technicians in the field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A variable threshold positive feedback detection component based on a gravity detector, comprising a gravity detector, a microcontroller and a positive feedback system, characterized in that: The gravity detector is connected to a microcontroller, and the microcontroller is connected to a positive feedback system; The gravity detector is used to detect the weight of the measured weight and upload the detected weight to the microcontroller; the microcontroller is used to determine whether the weight of the measured weight reaches a set threshold value. When the actual weight of the measured weight exceeds the threshold value, a trigger signal is emitted, and the positive feedback system receives the signal emitted by the microcontroller. The positive feedback system gives feedback on the actual weight situation according to the received signal to form an alarm mechanism; if the weight of the measured weight does not reach the threshold value, the signal will not be triggered, and no alarm will be generated, and the conventional state without special feedback will be maintained; The positive feedback system adopts positive feedback control technology to feed back part of the output signal to the input end, so that the input signal is enhanced and the system response is amplified, so that there is a stronger reaction to the slight change of the input signal; and when the output signal climbs to a preset critical value, the positive feedback control system is immediately triggered to respond to the signal; if the output signal has not yet reached the preset critical value, the positive feedback system will remain silent and will not produce any response.

2. The variable threshold positive feedback detection component based on a gravity detector according to claim 1, characterized in that: The gravity detector is a high-precision gravity detector with A / D conversion function, two-way analog channel input function, and an internally integrated programmable amplifier for high-precision conversion of weak analog signals.

3. The variable threshold positive feedback detection component based on a gravity detector according to claim 1, characterized in that: The microcontroller is based on an AVR architecture, an analog pin of the microcontroller is connected to a gravity detector, and a gravity value judgment code with a flexibly adjustable threshold value is built in.

4. The variable threshold positive feedback detection component based on a gravity detector according to claim 2, characterized in that: The data captured by the gravity detector is transmitted to the microcontroller in the form of an electrical signal, and the gravity detector communicates with the microcontroller through a simple pulse signal and outputs a digital signal.

5. The variable threshold positive feedback detection component based on a gravity detector according to claim 1, characterized in that: When the positive feedback detection assembly is in use, the installation position of the gravity detector is fixed, and a data acquisition system is constructed to detect the gravity changes above the gravity detector in real time.

6. A positive feedback detection system based on a gravity detector with a variable threshold positive feedback detection component according to any one of claims 1 to 5, characterized in that: The following steps are involved: At the beginning of the experiment, a critical threshold is set, and then a heavy object with a mass infinitely close to the threshold is placed on a highly sensitive gravity detector with precise operations. The data captured by the gravity detector is quickly transmitted to the computer in the form of electrical signals and presented after being processed by complex algorithms. Theoretically, the screen reading will not exceed the threshold at this moment; then, the mass of the heavy object is gradually increased, and the screen reading is closely observed. When the reading exceeds the threshold, the microcontroller releases a signal and sounds an alarm. After the alarm is manually eliminated, the signal is reset; finally, the system enters the next detection cycle.

7. The positive feedback detection system of the variable threshold positive feedback detection component based on the gravity detector according to claim 6, characterized in that: Not limited to gravity detection, the same type of components are suitable for pressure detection.

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