Urine detection system

Abstract

The utility model relates to the technical field of urine detection, in particular to a urine detection system. The utility model discloses. A master control module cooperates with multiple sensors and a high-precision driving module to construct a complete automatic chain from sample collection, transmission to analysis, a photoelectric sensor feeds back sample positions in real time, and a pressure sensor monitors mechanical states, so that the sample transmission positioning precision reaches + / -0.5 mm, the time consumption of a detection process is shortened, and the detection efficiency is improved. The problems of sample pollution, operation delay and the like caused by human intervention are eliminated in the whole process, a 24V strong current load is isolated through an optical coupler RLY of a switch module aiming at strong electromagnetic interference generated by a motor and a relay, the fluctuation amplitude of a sensor signal is greatly reduced at the moment of starting and stopping the motor, and the effectiveness of detection results of non-laboratory scenes such as families and communities is ensured; the technical problem that existing urine detection equipment depends on a large amount of manual operation, so that the reliability of a detection result is low is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of urine detection, in particular to a urine detection system. Background Art

[0002] Traditional urine testing equipment often needs to rely on a large amount of manual operation in the sample processing link. This process not only greatly reduces the overall detection efficiency, making the entire detection process extremely lengthy and cumbersome, but also due to the intervention of manual operation, the test results will inevitably be affected by various uncontrollable factors. Specifically, the operator's experience, skill level and minor errors in the sample processing process, etc., these factors may have a significant impact on the final test results. Operators with insufficient experience and skill levels may make mistakes in the sample processing process, and minor operational errors may lead to deviations in the results after accumulation. The combined effect of these factors not only weakens the accuracy and reliability of the test results, making the basis for clinical diagnosis less solid, but also further increases the risk of misdiagnosis, posing a potential threat to patients' health and the rational use of medical resources. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the present invention provides a urine testing system, which solves the technical problem that the existing urine testing equipment relies on a large amount of manual operation, resulting in low reliability of the test results.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: a urine detection system, which includes:

[0005] A main control module, the main control module being used to control the driving module, the switch module and the voice module according to a first control instruction input manually and a second control instruction transmitted by the sensor module;

[0006] A driving module, the driving module is used to control the valve for sample collection according to the instructions of the main control module to collect urine and transport the urine sample to a designated area for testing;

[0007] A sensor module, the sensor module is used to collect status data including the position and movement status of the urine sample in real time, and transmit the status data to the main control module;

[0008] A switch module, the switch module is used to control the electrical isolation state between the urine detection system and the drive module, the sensor module and the voice module according to the instructions issued by the main control module;

[0009] The voice module is used to interact with the main control module through voice signals.

[0010] Preferably, the main control module includes chips U13.1, U13.2 and U13.3 for controlling the driving module. A crystal oscillator X1 is connected between the OSC_IN port and the OSC_OUT port of the chip U13.1. Capacitors C21 and C22 are connected in parallel between the two ends of the crystal oscillator X1, and capacitors C21 and C22 are grounded.

[0011] Preferably, the driving module includes several first motor drivers connected to the driving module, and several second motor drivers for controlling sample movement, positioning and microscope, several first motor drivers are connected to interface H47 and interface H50, interface H47 and interface H50 are connected to the driving module, the second motor driver is connected to interface U39 and interface U38, interface U39 and interface U38 are connected to the sensor module, several first motor drivers and several second motor drivers are connected to interface H55, and the driving module is connected to interface H47.

[0012] Preferably, the sensor module includes several first sensors arranged on the interface U39, several second sensors connected to the interface H47, several third sensors connected to the interface H50, several first motor drivers and several fourth sensors connected to the interface U38, and several fifth sensors connected to the interface 7.

[0013] Preferably, the switch module includes several optocouplers RLY, the two input contacts of the optocoupler RLY are respectively connected to the power supply and the MOS tube, the MOS tube is connected to the driving module, a resistor is connected between the gate and source of the MOS tube, and the optocoupler RLY is also connected to a connector for connecting a load.

[0014] Preferably, the voice module includes a chip U41 and a chip U42 which are sequentially connected to the driving module.

[0015] Preferably, the voice module includes a resistor R162 connected to the PEO port of the driving module, a resistor R161 and an LED17 are connected in parallel at both ends of the resistor R162, and a comparator U48.1 and a comparator U48.2 are connected in sequence to the PEO port of the driving module. A sliding resistor R160 is connected between pins 8 and 4 of the comparator U48.1, and the sliding end of the sliding resistor R160 is connected to pin 2 of the comparator U48.1. A capacitor C133 and a transistor U46 are also connected between pins 2 and 4 of the comparator U48.1, and the collector of the transistor U46 is connected to the Resistors R158 and R172 are connected in parallel between pin 8 of comparator U48.1, resistors R157 and capacitors C141 are connected in series across both ends of resistor R172, microphone MIC1 is connected between resistor R157 and capacitor C141 and the emitter of transistor U46, resistor R156 and capacitor C132 are connected in parallel between pins 1 and 2 of microphone MIC1, resistor R155 and LED16 are connected in parallel across the series resistor R157 and capacitor C132, and capacitor C131 is also connected in parallel across the series resistor R157 and capacitor C132.

[0016] By means of the above technical solution, the present invention provides a urine detection system, which has at least the following beneficial effects:

[0017] 1. This utility model uses a main control module to coordinate multiple sensors and high-precision drive modules to build a complete automated chain from sample collection and transmission to analysis. The photoelectric sensor provides real-time feedback on the sample position, and the pressure sensor monitors the mechanical status. Combined with the millisecond-level response capability of STM32, the sample transmission positioning accuracy reaches ±0.5mm. The detection process time is shortened by more than 70% compared with traditional manual operations, and problems such as sample contamination and operation delays caused by human intervention are eliminated throughout the process. The repeatability error of a single test is ≤2%, which greatly improves the credibility of the test results and the stability of the equipment. It is especially suitable for batch screening scenarios.

[0018] 2. This new device addresses the strong electromagnetic interference generated by motors and relays by isolating 24V high-voltage loads through the optocoupler RLY of the switch module. At the instant the motor starts and stops, the sensor signal fluctuation amplitude is reduced from the traditional ±15% to within ±3%. Combined with the STM32 software filtering algorithm, the pressure sensor maintains a measurement accuracy of 0.5% FS even in a 30kHz PWM noise environment, ensuring the validity of test results in non-laboratory scenarios such as homes and communities.

[0019] 3. This utility model integrates voice control input and multi-language broadcasting through a voice module to achieve full-process voice guidance. Users trigger operations through natural voice commands, and the system provides real-time feedback on the status. Combined with the redundant design of the key matrix, actual measurements show that the operation error rate of the elderly group has dropped from 40% of traditional equipment to 12%, and the operation time has been shortened by 65%. It can also be further combined with cloud-based health data analysis to automatically generate personalized reports. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0021] Figure 1 This is a structural block diagram of the urine detection system of the utility model;

[0022] Figure 2 This is the circuit diagram of the chip U13.1 of the utility model;

[0023] Figure 3 This is the circuit diagram of the chip U13.2 of the utility model;

[0024] Figure 4 This is the circuit diagram of the chip U13.3 of the utility model;

[0025] Figure 5 This is a circuit diagram of the crystal oscillator circuit of the utility model;

[0026] Figure 6 This is a first circuit diagram of the first motor driver of the present utility model;

[0027] Figure 7 This is a second circuit diagram of the first motor driver of the present utility model;

[0028] Figure 8 This is a circuit diagram of the second motor driver of the utility model;

[0029] Figure 9 This is a circuit diagram of the switch module of the utility model;

[0030] Figure 10 This is the first circuit diagram of the sensor module of the present utility model;

[0031] Figure 11 This is the second circuit diagram of the sensor module of the present invention;

[0032] Figure 12 This is the third circuit diagram of the sensor module of the present utility model;

[0033] Figure 13 This is a fourth circuit diagram of the sensor module of the present utility model;

[0034] Figure 14 This is the fifth circuit diagram of the sensor module of the present utility model;

[0035] Figure 15 This is the first circuit diagram of the voice module of the utility model;

[0036] Figure 16 This is the second circuit diagram of the voice module of the present utility model;

[0037] Figure 17 This is the third circuit diagram of the voice module of the present utility model.

[0038] In the figure: 1. Main control module; 2. Drive module; 3. Sensor module; 4. Switch module; 5. Voice module. DETAILED DESCRIPTION

[0039] To make the above-mentioned objectives, features, and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments. This will enable a full understanding of how the present invention applies technical means to solve technical problems and achieve technical effects, and to implement the invention accordingly.

[0040] In order to solve the technical problem that the existing urine testing equipment relies on a lot of manual operations, resulting in low reliability of the test results, the present application provides a urine testing system, such as Figure 1 As shown, the urine detection system includes a main control module 1, a drive module 2, a sensor module 3, a switch module 4 and a voice module 5. Each module is described in detail below.

[0041] The main control module 1 is used to control the driving module 2, the switch module 4 and the voice module 5 according to the first control instruction input manually and the second control instruction transmitted by the sensor module 3. Figure 2-Figure 5 As shown, the main control module 1 includes a chip U13.1, a chip U13.2 and a chip U13.3 for controlling the drive module 2. The chips U13.1, U13.2 and U13.3 may belong to the same multi-channel logic chip, model STM32F427ZGT6. Chips U13.1 and U13.2 can be used to control the drive of the motor, and chip U13.3 can be used to control the switch module 4 and the servo for controlling the valve, etc. A crystal oscillator X1 is connected between the OSC_IN port and the OSC_OUT port of the chip U13.1 to provide a high-precision and high-stability reference clock signal for the main control module 1. Capacitors C21 and C22 are connected in parallel between the two ends of the crystal oscillator X1, and capacitors C21 and C22 are grounded. Capacitors C21 and C22 are used to match the resonant frequency of the crystal oscillator. The grounding forms a resonant circuit, which provides a basis for the main control module 1 to send a high-precision control signal.

[0042] The STM32 microcontroller, serving as the "brain" of this system, is based on a Cortex-M core and boasts a main frequency of up to 180 MHz, along with large-capacity Flash and RAM. It uses a multi-channel ADC to acquire analog signals from various sensors in real time and perform high-precision data processing. It utilizes timer and PWM output functions to precisely control the operation and angle adjustment of motors and servos. It communicates with voice module 5 and switch module 4 via an IO interface to implement voice broadcasting and control electrical equipment. Furthermore, the STM32 can also run an embedded real-time operating system, rationally scheduling task priorities to ensure the orderly execution of processes such as sample transmission, detection and analysis, and result feedback, with millisecond-level response times.

[0043] The driving module 2 is used to control the valve for sample collection according to the instructions of the main control module 1 to collect urine. The valve is generally controlled by a steering gear and transports the urine sample to a designated area for testing, such as Figure 6-Figure 8 As shown, the driving module 2 includes several first motor drivers connected to the driving module 2, such as U4-U9, U28-U30 in the figure, which can be used for precise positioning of the stepper motor, such as controlling the automatic focusing of the microscope through motor drive, and several second motor drivers for controlling sample movement, positioning and microscope, such as U3, U17 and U18, which can control the motor that drives the sample transport carrier, as well as the valve that controls the urine sample, etc., and the servo on the control valve. Several first motor drivers are connected with interface H47 and interface H50, and interface H47 and interface H50 are connected to the driving module 2. The second motor driver is connected with interface U39 and interface U38, and interface U39 and interface U38 are connected to the sensor module 3. Several first motor drivers and several second motor drivers are connected with interface H55, and the driving module 2 is connected with interface H7. Therefore, the control of different motors and other electrical equipment is realized through multiple different interface chips. Generally, the sample valve, sample acquisition and other parts are precisely controlled by a micro servo. STM32 By outputting a PWM signal with a specific duty cycle and adjusting the servo angle, quantitative sample collection can be achieved. For example, when collecting samples, the servo accurately rotates the valve to control the amount of urine flowing into the diaphragm. After collecting the urine, the servo presses down the diaphragm to ensure that the diaphragm is not lost. The servo in the analysis sample area presses down when the sample is obtained to ensure that the microscope obtains accurate cell images.

[0044] In order to ensure the overall effect of this system, low-noise, high-precision stepper motors and subdivision motors can be selected, matched with dedicated subdivision drive circuits, and connected to the corresponding pins of STM32. During the sample transmission process, STM32 sends high and low level instructions to control the motor operation based on the sample arrival signal detected by the pressure sensor, driving the sample carrier with a positioning accuracy of ±0.5mm to accurately transport the urine sample to the sampling area, sampling area and analysis area. The motor speed, direction and start and stop are all controlled in real time by STM32 to ensure a stable and efficient transmission process.

[0045] In order to ensure the timely and stable high-precision operation of each electrical device, it is necessary to configure a sensor module 3 for real-time collection of status data including the position and movement status of the urine sample, such as Figure 10-14 As shown, the status data is transmitted to the main control module 1. The sensor module 3 includes several first sensors arranged on the interface U39, several second sensors connected to the interface H47, several third sensors connected to the interface H50, several first motor drivers and several fourth sensors connected to the interface U38, and several fifth sensors connected to the interface 7. Different keys KEY are connected to the interfaces U38 and U39 for structural positioning, calibration, and judging whether the mechanical operation is in place. At the same time, different sensors are connected according to the functions of the connected electrical equipment, such as R102, R105, R106, R47 and R43, etc., which are connected to the components on EOSS4. Among them, photoelectric sensors R102, R43 and R47 can be installed on one side of the sample transmission track to monitor the position and movement status of the sample container in real time. When the sample enters or leaves a certain area, the sensor immediately transmits the signal to STM32. Photoelectric sensor R102 can also be deployed at a specific position of the structure to determine the position and status of the machine operation. Abnormal information can be fed back to STM32, and STM32 issues a command to suspend the detection process. High-precision pressure sensors such as R55, R56 and R57 are also installed at specific positions of the structure, such as at the microscope to determine the fixation of the sample. They are connected to STM32 through the IO port, and the triggered sensor runs to the next link and transmits the data to STM32 For processing, the STM32 combines the position of the photoelectric sensor to accurately calculate the operating links and provide key parameters for subsequent operation analysis. At the same time, the pressure sensor can also monitor abnormal pressure changes during equipment operation. Once an abnormality is detected, it immediately sends a signal to the STM32, triggering an emergency shutdown and alarm to ensure the safe operation of the equipment. For example, the liquid level sensor can detect the amount of urine collected, etc. I will not list them one by one here. The type of sensor installed can be determined according to actual needs.

[0046] The switch module 4 is used to control the electrical isolation state between the urine detection system and the drive module 2, the sensor module 3 and the voice module 5 according to the instructions issued by the main control module 1, such as Figure 9 As shown, the switch module 4 includes several optocouplers RLY, the two input contacts of the optocoupler RLY are respectively connected to the power supply and the MOSFET, the MOSFET is connected to the drive module 2, and a resistor, such as resistor R9, is connected between the gate and source of the MOSFET for current limiting. The optocoupler RLY is also connected to a connector for connecting a load. The optocoupler switch is used as an electrical isolation element to control electrical components such as heating devices and power-on and power-off devices. The STM32 sends an electrical signal to the input end of the optocoupler switch through the GPIO pin, and uses the principle of photoelectric coupling to safely isolate the control circuit from the load circuit, effectively avoiding the influence of strong electrical interference on other precision components of the circuit board.

[0047] The voice module 5 is used to interact with the main control module 1 through voice signals, such as Figure 15-17As shown, it includes a chip U41 and a chip U42 connected in sequence to the driver module 2, which are respectively located in the voice chip and the audio power amplifier for playing the system prompt voice. In addition, a module for user voice input control instructions is further provided, that is, the voice module 5 can also include a resistor R162 connected to the PEO port of the driver module 2, and a resistor R161 and an LED17 are connected in parallel at both ends of the resistor R162. The PEO port of the driver module 2 is also connected in sequence with a comparator U48.1 and a comparator U48.2. The comparator U48.1 and the comparator U48.2 are dual-channel voltage comparators that convert analog audio signals into digital pulses and photoelectric sensor signals to realize voice control function. When the microphone signal exceeds the threshold, the output high or low level triggers the STM32. A sliding resistor R160 is connected between the 8th pin and the 4th pin of the comparator U48.1. The sliding end of the sliding resistor R160 is connected to the 2nd pin of the comparator U48.1. .1 is also connected between pins 2 and 4 of the transistor C133 and transistor U46. The collector of transistor U46 is connected to pin 8 of comparator U48.1 with resistors R158 and R172 in parallel. The emitter of transistor U46 is grounded through resistor R158 to form a common-emitter amplifier circuit, which amplifies the weak audio signal of microphone MIC1 for subsequent comparator processing. The two ends of resistor R172 are connected in parallel with resistor R157 and capacitor C141 in series. Resistor R1 A microphone MIC1 is connected between 57 and capacitor C141 and the emitter of transistor U46. A resistor R156 and a capacitor C132 are connected in parallel between pins 1 and 2 of microphone MIC1. A resistor R155 and LED16 are connected in parallel across the series resistor R157 and capacitor C132. A capacitor C131 is also connected in parallel across the series resistor R157 and capacitor C132. Capacitors C131, C132, and C133 achieve full AC coupling to reduce interference.

[0048] The above embodiments provide a detailed introduction to the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there may be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A urine testing system, characterized in that: The urine testing system includes: A main control module (1), the main control module (1) being used to control the drive module (2), the switch module (4) and the voice module (5) according to a first control instruction input manually and a second control instruction transmitted by the sensor module (3); A driving module (2), the driving module (2) being used to control a valve for sample collection according to instructions from the main control module (1) to collect urine, and to transport the urine sample to a designated area for testing; A sensor module (3), the sensor module (3) is used to collect status data including the position and movement status of the urine sample in real time, and transmit the status data to the main control module (1); A switch module (4), the switch module (4) being used to control the electrical isolation state between a urine detection system and the drive module (2), the sensor module (3) and the voice module (5) according to an instruction issued by the main control module (1); A voice module (5), the voice module (5) is used to interact with the main control module (1) through voice signals.

2. A urine testing system according to claim 1, characterized in that: The main control module (1) comprises a chip U13.1, a chip U13.2 and a chip U13.3 for controlling the driving module (2); a crystal oscillator X1 is connected between the OSC_IN port and the OSC_OUT port of the chip U13.1; a capacitor C21 and a capacitor C22 are connected in parallel between the two ends of the crystal oscillator X1; and the capacitors C21 and C22 are grounded.

3. A urine testing system according to claim 1, characterized in that: The driving module (2) includes a plurality of first motor drivers connected to the driving module (2), and a plurality of second motor drivers for controlling sample movement, positioning and microscope, wherein the plurality of first motor drivers are connected to interfaces H47 and H50, and the interfaces H47 and H50 are connected to the driving module (2), the second motor drivers are connected to interfaces U39 and U38, and the interfaces U39 and U38 are connected to the sensor module (3), the plurality of first motor drivers and the plurality of second motor drivers are connected to interfaces H55, and the driving module (2) is connected to interfaces H7.

4. A urine testing system according to claim 3, characterized in that: The sensor module (3) includes a plurality of first sensors arranged on the interface U39, a plurality of second sensors connected to the interface H47, a plurality of third sensors connected to the interface H50, a plurality of first motor drivers and a plurality of fourth sensors connected to the interfaces U38, and a plurality of fifth sensors connected to the interface 7.

5. A urine testing system according to claim 1, characterized in that: The switch module (4) includes a plurality of optical couplers RLY, wherein two input contacts of the optical coupler RLY are respectively connected to a power supply and a MOSFET, the MOSFET is connected to the drive module (2), a resistor is connected between the gate and source of the MOSFET, and a connector for connecting a load is also connected to the optical coupler RLY.

6. A urine testing system according to claim 1, characterized in that: The voice module (5) comprises a chip U41 and a chip U42 which are sequentially connected to the driving module (2).

7. A urine testing system according to claim 1, characterized in that: The voice module (5) includes a resistor R162 connected to the PEO port of the driving module (2), a resistor R161 and an LED 17 are connected in parallel at both ends of the resistor R162, a comparator U48.1 and a comparator U48.2 are connected in sequence to the PEO port of the driving module (2), a sliding resistor R160 is connected between the 8th pin and the 4th pin of the comparator U48.1, a sliding end of the sliding resistor R160 is connected to the 2nd pin of the comparator U48.1, a capacitor C133 and a transistor U46 are connected between the 2nd pin and the 4th pin of the comparator U48.1, and the collector of the transistor U46 is connected to the 1st pin. Resistors R158 and R172 are connected in parallel between the electrode and pin 8 of the comparator U48.1, resistors R157 and capacitors C141 are connected in series across the two ends of the resistor R172, microphone MIC1 is connected between the resistor R157 and capacitor C141 and the emitter of the transistor U46, resistors R156 and capacitors C132 are connected in parallel between pins 1 and 2 of the microphone MIC1, resistors R155 and LED16 are connected in parallel across the series resistors R157 and capacitors C132, and capacitor C131 is also connected in parallel across the series resistors R157 and capacitors C132.

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