CN215678071U - Urine analyzer control system - Google Patents
Urine analyzer control system Download PDFInfo
- Publication number
- CN215678071U CN215678071U CN202122264560.6U CN202122264560U CN215678071U CN 215678071 U CN215678071 U CN 215678071U CN 202122264560 U CN202122264560 U CN 202122264560U CN 215678071 U CN215678071 U CN 215678071U
- Authority
- CN
- China
- Prior art keywords
- module
- control system
- main control
- control module
- light source
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Investigating Or Analysing Biological Materials (AREA)
Abstract
A urine analyzer control system comprises a main control module, a light source control module, a signal processing module, a sample driving module, an interaction module and a data storage module, wherein the light source control module, the signal processing module, the sample driving module and the interaction module are controlled by the main control module. The sample driving module drives the test paper dipped with the sample to enter the urine analyzer, the test paper is irradiated by the light source control module, the light intensity of the reflected light is converted into a digital signal by the signal processing module and is transmitted to the main control module for data analysis, the data storage module stores the data, and the data exchange is completed with a user through the interaction module. The light source control module adopts a white cold light source LED, color components comprise three colors of RGB, the size is smaller, the sample driving module adopts a magnetic resistance sensor to match with a magnet, the bracket is positioned more accurately, the signal processing module adopts a color sensor, the resolution ratio is high, the anti-interference capability is strong, a plurality of color space algorithms are adopted, and the gradient judgment is more accurate.
Description
Technical Field
The utility model relates to a urine analyzer control system, and belongs to the field of medical instruments.
Background
The urine analyzer is a common medical analysis instrument, and the essence of the testing principle is light absorption and reflection, wherein a test strip dipped with urine is irradiated by light, and an analysis result is obtained by detecting the light intensity of reflected light. The traditional urine analyzer generally adopts a photodiode to obtain an AD value through operational amplifier conversion, a conversion circuit is complex and is easy to interfere, the AD conversion usually adopts 12 bits of a single chip microcomputer, the resolution ratio is low, three primary colors RGB-LED light sources are adopted, the size is large, most of the AD conversion devices adopt photoelectric switches to carry out position judgment, the size is large, a separation blade is required to be used as position judgment, and judgment inaccuracy is easy to occur.
SUMMERY OF THE UTILITY MODEL
The utility model provides a urine analyzer control system, which aims to overcome the defects in the prior art.
In order to achieve the purpose, the utility model provides the following technical scheme: a urinalysis meter control system comprising: the main control module comprises a singlechip; the light source control module is connected with the main control module and comprises a white cold light source LED for emitting detection light to irradiate the detection test paper; the sample driving module comprises a bracket moving module and two position judging modules, the bracket moving module is used for carrying the movement of the detection test paper, the position judging modules comprise magnetic resistance sensors and magnets arranged at the inlet ends of the brackets, and the magnetic resistance sensors and the magnets are matched to be respectively used for detecting the warehousing and warehousing positions of the brackets and transmitting detection signals to the main control module; and the signal processing module is connected with the main control module, adopts a color sensor and is used for converting the detected optical signals into digital signals and uploading the digital signals to the main control module for data processing.
Preferably, the carriage motion module comprises a driving device, the driving device is used for driving the carriage to move, and the driving device is a direct current motor or a stepping motor.
As a preferred scheme, the light source control module further comprises a constant current driving module, and the constant current driving module adjusts the brightness of the white cold light source LED by setting a preset resistance driving current.
As a preferred scheme, the control system further comprises a system power module, wherein the system power module comprises a lithium battery management module and a voltage reduction and stabilization module, the lithium battery management module is used for charging management, and the voltage reduction and stabilization module is used for supplying power to the control system.
As a preferred scheme, the urine analyzer control system further comprises an interaction module connected with the main control module, and the interaction module is used for data exchange between a user and the control system.
As a preferred scheme, the interaction module comprises a Bluetooth module, a WIFI module and a touch screen.
Preferably, the urine analyzer control system further comprises a data storage module connected with the main control module.
Preferably, a white ceramic block for white balance calibration is connected to the front end of the bracket.
The urine analyzer control system provided by the utility model has the following beneficial effects:
1) the signal processing module directly outputs digital signals through internal conversion by adopting a color sensor, each color channel has 16-bit resolution, the resolution is high, and the anti-interference capability is strong;
2) by adopting the single white cold light source LED with the patch, the color components of the LED comprise three colors of RGB, and the LED is smaller in size compared with the traditional three RGB direct-insert LEDs;
3) the position judgment module is used for detecting the position of the magnet magnetic judgment bracket by adopting the magnetic resistance sensor, so that the positioning is accurate, the signal acquisition is more accurate, and the size is smaller and more ingenious compared with the traditional photoelectric switch;
4) by adopting a multi-color space algorithm, the gradient judgment is more accurate.
Drawings
FIG. 1 is a schematic diagram of the overall configuration of a urine analyzer control system of the present invention;
fig. 2 is a circuit schematic diagram of a constant current driving module;
FIG. 3 is a schematic diagram of a signal acquisition process of the urine analyzer control system of the present invention;
FIG. 4 is a waveform analysis diagram of the test strip.
Detailed Description
Other advantages and features of the present invention will become readily apparent to those skilled in the art from the following detailed description, wherein it is to be understood that the utility model is not limited to the specific embodiments disclosed, but is to be construed as limited only by the appended claims. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
To facilitate an understanding of the present invention by those skilled in the art, specific embodiments thereof are described below with reference to the accompanying drawings.
As shown in fig. 1, the present invention discloses a urine analyzer control system, which includes a main control module, and a light source control module, a signal processing module, a sample driving module, an interaction module, and a data storage module, which are controlled by the main control module. The sample driving module drives the test paper dipped with the sample to enter the urine analyzer, the test paper is irradiated by the light source control module, the light intensity of the reflected light is converted into a digital signal by the signal processing module and is transmitted to the main control module for data analysis, the data storage module stores the data, and the data exchange is completed with a user through the interaction module. The urine analyzer control system provided by the utility model also comprises a system power supply module for supplying power to all modules of the control system, wherein the system power supply module comprises a lithium battery management module and a voltage reduction and stabilization module, and the lithium battery is charged and managed through the lithium battery management module, so that a user can use the system power supply module at any time conveniently; all modules needing power supply in the system are powered through the voltage reduction and stabilization module, and the voltage reduction and stabilization module comprises a main control module, a signal processing module, a light source control module, a sample driving module, an interaction module and a data storage module.
The main control module preferably adopts STM32F4 series single-chip microcomputer of Italian semiconductor company as a main control chip, and the main frequency 168MHz of the main control module can be competent for a 4.3-inch 800x 480-resolution liquid crystal screen; and the light source control module connected with the main control module comprises a light source module and a constant current driving module, wherein the light source module adopts a white cold light source LED, the color components of the light source module comprise three colors of RGB, and the light source module is used for emitting detection light to irradiate the detection test paper, the light source module is controlled by the constant current driving module, the constant current driving module adopts an MIC2860-2D driving chip, driving current can be set through an external preset resistor, the brightness of the white cold light source LED is adjusted through the driving current, concretely, as shown in figure 2, the MIC2860-2D is a high-efficiency white light LED driver, R34 resistor is used for adjusting the maximum output current, LED _ C is connected with a single chip microcomputer pin, the output current is adjusted through outputting PWM duty ratio, the maximum current is divided into 32 levels, and the brightness of the white cold light source LED is adjusted. The R13 resistor is used to fix the 1 pin level of the MIC2860-2D to a fixed value.
The sample driving module is connected with the main control module and comprises a bracket moving module and a position judging module, the bracket moving module comprises a driving device, the bracket is driven by the driving device to convey the detection test paper to move and enter and exit the detection bin of the urine analyzer, and the driving device can adopt a direct current motor or a stepping motor, preferably a direct current motor; the position judgment module includes magnetoresistive sensor and magnet, and magnetoresistive sensor sets up to two, and the welding is at the both ends of circuit board, and when the bracket entered into completely to detecting the storehouse, magnetoresistive sensor's the position and the position at bracket both ends correspond from top to bottom, and the entering end of magnet embedding to the bracket, magnetoresistive sensor can be through the position of the magnetic field intensity that detects magnet in order to judge the bracket, and with detected signal transmission extremely host system, the magnetoresistive sensor who sets up at the circuit board both ends can be used for the bracket to advance the storehouse respectively and detect and go out the storehouse and detect, and magnetoresistive sensor is preferably the honowell SM351LT magnetic resistance sensor.
And the signal processing module is connected with the main control module, adopts a color sensor and is used for converting the detected optical signals into digital signals and uploading the digital signals to the main control module for data processing, the color sensor is preferably a VEML6040 color sensor and can detect four colors of RGBW, each color channel has 16-bit resolution, and an IIC bus is adopted for data transmission. The color change of each detection color lump of the urine analyzer detection test paper after reaction with urine is used as the guidance of the index, the shade change or the color change of the color is used as the final detection gradient for judgment, and different color algorithms are required to be used for processing respectively to obtain corresponding gradient values. The value collected by the color sensor is an RGB value which respectively represents the content of three colors of red, green and blue of a color block, other color space model conversions including but not limited to HSV, YUV, YIQ, HSI and CMY can be carried out through the value, the color space models are compared through the conversions, and each item takes the optimal color space model as a final algorithm.
Specifically, the RGB color pattern acquired by the color sensor is converted into an HSV color pattern, which is calculated by the following formula:
Max＝max(R,G,B)
Min＝min(R,G,B)
V＝Max；
wherein: r, G, B represents the value of pixel R, G, B, Max and Min are the maximum and minimum values in R, G, B, respectively, H, S, V represents the corresponding value H, S, V in the converted HSV color space.
Converting the RGB color mode collected by the color sensor into an HSL color mode, and calculating by the following formula:
L＝(Max+Min)/2；
wherein: r, G, B represents the value of pixel R, G, B, Max and Min are the maximum and minimum values in R, G, B, respectively, H, S, V represents the corresponding value H, S, V in the converted HSV color space.
For the same color system, the color brightness is different and is distinguished by adopting a mode of obtaining the square sum:
SumSq＝R*R+G*G+B*B；
and distinguishing the composite color system by adopting a color ratio mode:
compositeR＝G*G*G/R；
compositeG＝G*G*G/B；
compositeGB＝(G+R)*(G+R)/B；
furthermore, the urine analyzer control system provided by the utility model also comprises an interaction module and a data storage module which are connected with the main control module, wherein the interaction module is used for data exchange between a user and the control system, the interaction module comprises a Bluetooth module, a WIFI module and a touch screen, the function of the Bluetooth module can enable detection data of the control system to be uploaded to a mobile phone terminal APP through Bluetooth, and the WIFI module can push the system detection data to a cloud end; the data storage module can store the detection data and the system state data through the control of the main control module, and is connected with data printing and data exporting through the serial port of the main control module.
FIG. 3 illustrates a signal acquisition process of the urine analyzer control system of the present invention: the method comprises the steps that firstly, a light source module is started, a bracket moving module drives test paper to enter a detection bin of the urine analyzer, a signal processing module collects a group of signal values every 45ms until a magnetic field signal of a magnet is detected by a bin entry magnetoresistive sensor and is transmitted to a main control module, and the main control module controls the bracket moving module to stop moving; and the bracket motion module drives the detection test paper to go out of a detection bin of the urine analyzer until the magnetic field signal of the magnet is detected by the bin-out magnetoresistive sensor and is transmitted to the main control module, the main control module controls the bracket motion module to stop moving, and the main control module processes data.
FIG. 4 illustrates the waveform analysis of the collected test strip: the signal processing module collects a value every 45ms, and roughly calculates the collected value of the space between each color block of the detection test paper according to the warehouse entry time. After the effective value of the first color block is found, the vicinity of the value of the second color block can be calculated, because gaps among other color blocks except the first color block are white, the values of the gaps are all in a trough, the minimum value between two wave crests can be preferably selected as the preselected value of the second color block, then collected values before and after the preselected value are compared, and the slope meets a certain condition and can be determined as the effective value. Thus, the first peak is the central position of the white ceramic block of the test paper, and the value of the first peak is used for white balance calibration; the first wave trough is a gap between the bracket and the front end of the test paper, and the reflected light is the minimum value collected in the whole section because the bracket is black; the inflection point is the central position of the first color block of the test paper; the second wave peak is the gap between two color blocks of the test paper, and because the substrate of the test paper is white, the reflected light is the maximum value between the two color blocks; the second trough is the central position of a second color block of the detection test paper; the third peak is the gap between two color blocks of the test paper, and the collected values of 14 color blocks can be obtained by analogy. And carrying out normalization processing on the effective value by carrying out white balance calculation on the value of the white ceramic block, and eliminating the inter-station difference and external interference.
Further, through waveform analysis, the placement position of the detection test paper can be judged: when the waveform collected by the signal processing module has no obvious wave crest and wave trough except the white ceramic block and is equivalent to the first wave trough value, the situation that the detection test paper is not placed can be judged; whether the test paper is completely placed in the bracket motion module can be determined by comparing the first trough with the first color block value; and judging the subsequent wave crests to determine whether the test paper is accurately placed in the bracket, wherein the accurate placement means that the test paper is completely placed in the bracket, and all color blocks on the test paper can be effectively detected.
Although the utility model has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the utility model. Accordingly, such modifications and improvements are intended to be within the scope of the utility model as claimed. The above-described embodiments of the present invention do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (8)
1. A urine analyzer control system, the control system comprising:
the main control module comprises a singlechip; the light source control module is connected with the main control module and comprises a white cold light source LED for emitting detection light to irradiate the detection test paper;
the sample driving module comprises a bracket moving module and two position judging modules, the bracket moving module is used for carrying the movement of the detection test paper, the position judging modules comprise magnetic resistance sensors and magnets arranged at the inlet ends of the brackets, and the magnetic resistance sensors and the magnets are matched to be respectively used for detecting the warehousing and warehousing positions of the brackets and transmitting detection signals to the main control module;
and the signal processing module is connected with the main control module, adopts a color sensor and is used for converting the detected optical signals into digital signals and uploading the digital signals to the main control module for data processing.
2. The urine analyzer control system of claim 1, wherein the carriage motion module includes a drive device for driving the carriage motion, the drive device being a dc motor or a stepper motor.
3. The urine analyzer control system according to claim 1, wherein the light source control module further comprises a constant current driving module, and the constant current driving module adjusts the brightness of the white cold light source LED by setting a preset resistance driving current.
4. The urine analyzer control system according to claim 1, further comprising a system power supply module, wherein the system power supply module comprises a lithium battery management module and a voltage and voltage reduction and stabilization module, the lithium battery management module is used for charging management, and the voltage and voltage reduction and stabilization module is used for supplying power to the control system.
5. The urine analyzer control system of claim 1, further comprising an interaction module connected to the main control module, wherein the interaction module is used for data exchange between a user and the control system.
6. The urinalysis meter control system according to claim 5, wherein said interaction module comprises a Bluetooth module, a WIFI module and a touch screen.
7. The urine analyzer control system according to claim 1, further comprising a data storage module connected to the main control module.
8. The urine analyzer control system according to claim 1, wherein a white ceramic block for white balance calibration is attached to the front end of the bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122264560.6U CN215678071U (en) | 2021-09-17 | 2021-09-17 | Urine analyzer control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122264560.6U CN215678071U (en) | 2021-09-17 | 2021-09-17 | Urine analyzer control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215678071U true CN215678071U (en) | 2022-01-28 |
Family
ID=79964497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122264560.6U Active CN215678071U (en) | 2021-09-17 | 2021-09-17 | Urine analyzer control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215678071U (en) |
-
2021
- 2021-09-17 CN CN202122264560.6U patent/CN215678071U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101430223B (en) | LED instantaneous light flux test method and apparatus in PWM activation technology | |
| CN103841726B (en) | The real-time adjusting device of light-source brightness and method of adjustment thereof in pole piece defects detection | |
| CN201145154Y (en) | Self-adapting lighting source apparatus based on machine vision system feature model | |
| CN205246547U (en) | Urine analysis detecting system based on color sensor | |
| CN103512658A (en) | Color identification system and method | |
| CN108040387A (en) | Optical detection device and lighting device | |
| CN106094198A (en) | A kind of intelligence color selector optical system self-adapting correction method and device | |
| CN202734965U (en) | Color recognition system | |
| CN215678071U (en) | Urine analyzer control system | |
| CN205546117U (en) | Permanent illumination LED light source comprehensive control device of intelligence look selection machine | |
| CN101551340B (en) | Gold spot quantitative determination optical device | |
| CN106332358B (en) | A kind of polychrome illumination apparatus of plant incubator | |
| CN103411679B (en) | A kind of colourity optical detection system and light detection method | |
| CN108180416A (en) | One kind absorbs chromaticity coordinates and exports corresponding chromaticity coordinates height automatically shows finger light-source system | |
| CN104655270B (en) | The automatic measuring system of photo-sensing device photobehavior | |
| CN112684313B (en) | Automatic testing device and method for LED (light emitting diode) light emitting performance | |
| CN109738687A (en) | A kind of three-phase-voltage monitoring system and method | |
| CN105551410A (en) | Device and method for automatic determination of white balance adjustment resistor of LED display screen | |
| CN206658311U (en) | A kind of intelligence takes color full-color LED lamp system | |
| CN209199504U (en) | Display screen and radio for digital radio receiver | |
| CN203116853U (en) | Light-emitting diode (LED) detection device | |
| CN201119054Y (en) | LED road lamp driving power supply | |
| CN217425586U (en) | LED drive detection device | |
| CN207354673U (en) | Optical detection device and lighting device | |
| CN208043644U (en) | Portable milk protein content device for fast detecting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |