CN211653176U - Test tube recognition device and urine analyzer - Google Patents
Test tube recognition device and urine analyzer Download PDFInfo
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- CN211653176U CN211653176U CN201921336606.7U CN201921336606U CN211653176U CN 211653176 U CN211653176 U CN 211653176U CN 201921336606 U CN201921336606 U CN 201921336606U CN 211653176 U CN211653176 U CN 211653176U
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Abstract
The utility model discloses a test tube recognition device and a urine analyzer, which consists of a photoelectric module, a sensing module, a reflecting piece and a singlechip module, the photoelectric module sends out test light, the test light is emitted to the reflecting piece through the sensing module, a test tube to be tested passes through the test light, the photoelectric module converts light signals of light reflected by the reflecting piece into electric signals at the moment, the electric signals are filtered through the analog-to-digital conversion filtering unit, then the data processing decoding unit is used for comparing and analyzing light values reflected by the reflecting piece with a brightness threshold value to obtain corresponding existing state information of the test tube, the digital-analog waveform output adjusting unit adjusts the current of the photoelectric module, so that the testing light reaches the set brightness threshold value, the photoelectric module is prevented from attenuating the brightness of the testing light due to long-time use, and the aim of improving the detection accuracy of the test tube recognition device is fulfilled.
Description
Technical Field
The utility model relates to the field of medical equipment, especially, relate to a test tube recognition device and urine analyzer.
Background
In a full-automatic urine analyzer, the existing test tube detection mode comprises optical fiber fixed point detection, reflective optical coupler fixed point detection and correlation optical coupler scanning detection, wherein the optical fiber fixed point detection test tube principle is that an optical fiber amplifier is used for transmitting test light to a position of a to-be-tested tube, the test light is reflected by the test tube, enters an amplifier receiving end through an optical fiber and then is compared with a set threshold value, and the amplifier outputs high/low level to determine that no test tube is arranged at the current position; the principle of the reflective optical coupling fixed-point detection test tube is that an optical coupler is used for transmitting test light to be reflected by the test tube, and the intensity of the reflected test light is detected by the optical coupler, so that high and low levels are output to determine the existence state of the test tube; the principle of the test tube scanning detection by the correlation optical coupler is that the light emitter emits infrared light or visible light, the light receiver can always receive light under the unobstructed condition, the correlation optical coupler outputs a stable electric signal, but when the detected test tube passes through the light path, the light is shielded, the photoelectric switch acts to output a jump level signal, and therefore the test tube is detected to be in a stateless state, and the three test tube detection modes all have the problem of being easy to misjudge.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a test tube recognition device and urine analysis appearance aims at solving the test tube among the prior art have the technical problem who has the erroneous judgement easily.
In order to achieve the above purpose, the utility model discloses a test tube identification device, which comprises a photoelectric module, a sensing module, a reflecting piece and a singlechip module; the reflecting piece is arranged on one side of the sensing module, the photoelectric module is electrically connected with the sensing module and the single chip microcomputer module respectively, the single chip microcomputer module comprises a digital-analog waveform output unit, an analog-digital conversion filtering unit and a data processing decoding unit, and the digital-analog waveform output unit, the analog-digital conversion filtering unit and the data processing decoding unit are electrically connected in sequence. The sensing module is an optical fiber sensor.
One optical fiber in the sensing module transmits the test light formed by the photoelectric module, the formed test light irradiates the reflecting piece and is reflected back to the sensing module, and the other optical fiber in the sensing module transmits the test light back to the photoelectric module to convert an optical signal into an electric signal.
Wherein the reflector is a diffuse reflection plate.
The photoelectric module comprises a light emitting diode and a converter, the light emitting diode is electrically connected with the sensing module and the digital-analog waveform output unit respectively, and the converter is electrically connected with the sensing module and the analog-digital conversion filtering unit respectively.
The utility model also provides an urine analyzer, including support, sampling mechanism and test-tube rack, sampling mechanism with support fixed connection, and be located the edge of support, the test-tube rack with support sliding connection.
Wherein, the test-tube rack can be used to deposit the test tube of multiple different internal diameters, length.
Wherein, photoelectric module with support fixed connection to be located on the bottom plate of support, sensing module with support fixed connection, and be located the inside of the optic fibre mounting box of support, the reflection part with advance kind mechanism fixed connection, and be located advance the inside of the emergency call position mounting box of kind mechanism, single chip module with support fixed connection, and be located the inside of the control panel mounting box of support.
The utility model discloses a test tube identification device, which is used for generating a light source through the photoelectric module; the sensing module is used for transmitting the light source generated by the photoelectric module to the reflecting piece and receiving the light reflected by the reflecting piece; the single chip microcomputer module comprises an analog-digital conversion filtering unit and a data processing decoding unit; the photoelectric module is also used for converting optical signals of the light rays reflected by the reflecting piece into electric signals; the analog-to-digital conversion filtering unit is used for converting the electric signal converted by the photoelectric module into a digital signal and carrying out filtering processing; and the data processing and decoding unit is used for decoding the digital signals after filtering processing, and comparing and analyzing the light value reflected by the reflecting piece with the light valve value to obtain corresponding information of whether the test tube exists. The photoelectric module emits test light, the test light passes through the sensing module and is emitted onto the reflecting piece, because the test light is reflected back into the sensing module through the reflecting piece, a test tube rack to be tested passes through the test light, the photoelectric module converts light signals of the light reflected by the reflecting piece into electric signals at the moment, the electric signals are filtered by the analog-digital conversion filtering unit, then the digital signals after filtering processing are decoded by the data processing decoding unit, the light values reflected back by the reflecting piece are compared and analyzed with the light valve value, state information whether test tubes exist on the test tube rack is obtained, and in the process, the digital-analog waveform output adjusting unit adjusts the current of the voltage of the photoelectric module, so that the test light reaches the set brightness standard, and the test light brightness attenuation of the photoelectric module due to long-time use is avoided, thereby obtaining the effect of improving the detection accuracy of the test tube identification device.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic flow chart of the test tube identification device of the present invention.
Fig. 2 is a schematic structural view of the test tube recognition device and the urine analyzer of the present invention.
Fig. 3 is a schematic structural view of the test tube rack of the present invention after being disassembled from the base.
Figure 4 is the utility model discloses a test tube recognition device and urine analyzer's assembly side axonometric drawing.
Fig. 5 is a circuit diagram of the test tube discriminating device of the present invention.
100-test tube identification device, 10-photoelectric module, 20-sensing module, 30-reflection piece, 40-single chip microcomputer module, 41-analog-digital conversion filtering unit, 42-data processing decoding unit, 43-digital-analog waveform output unit, 50-urine analyzer, 51-support, 52-sample introduction mechanism and 53-test tube rack.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1 to 4, the present invention provides a test tube identification device 100, which includes a photoelectric module 10, a sensing module 20, a reflector 30 and a single chip module 40;
the photovoltaic module 10 is used for generating a light source;
the sensing module 20 is configured to transmit a light source generated by the optoelectronic module 10 to the reflector 30 and receive light reflected by the reflector 30;
the single chip module 40 comprises an analog-to-digital conversion filtering unit 41, a data processing decoding unit 42 and a digital-to-analog waveform output unit 43;
the optoelectronic module 10 is further configured to convert an optical signal of the light reflected by the reflector 30 into an electrical signal;
the analog-to-digital conversion filtering unit 41 is configured to convert the electrical signal converted by the optoelectronic module 10 into a digital signal, and perform filtering processing;
the data processing and decoding unit 42 is configured to decode the filtered digital signal, and compare and analyze the light value reflected by the reflecting element 30 with the light valve value to obtain corresponding information about whether the test tube exists;
the digital-analog waveform output unit 43 is configured to automatically adjust the current value of the optoelectronic module 10, so that the test light reaches the set brightness standard.
In this embodiment, after the test tube identifying apparatus 100 is started, the optoelectronic module 10 emits a test light, the test light passes through the sensing module 20 and is emitted to the reflecting member 30, since the test light is reflected back to the sensing module 20 through the reflecting member 30, when no test tube passes through the optical path between the reflecting member 30 and the sensing module 20, the sensing module 20 receives the test light emitted back from the reflecting member 30, at this time, the optoelectronic module 10 converts the optical signal of the light reflected by the reflecting member 30 into an electrical signal, and performs filtering processing through the analog-to-digital conversion filtering unit 41, and then the data processing decoding unit 42 is used to decode the filtered digital signal, and compare and analyze the optical value reflected back by the reflecting member 30 with the light valve value, at this time, the optical value of the test light emitted back by the reflecting member 30 is greater than the light valve value preset during calibration, if the brightness of the test light reaches the standard of the calibrated brightness, no test tube exists;
when a test tube passes through the optical path between the reflecting member 30 and the sensing module 20, since the test tube blocks the optical path of the test light reflected from the reflecting member 30 to the sensing module 20, so that the brightness of the test light received by the sensing module 20 is reduced, and at this time, the optoelectronic module 10 converts the optical signal of the light reflected by the reflecting member 30 into an electrical signal, and the electrical signal is filtered by the analog-to-digital conversion filtering unit 41, and then the filtered digital signal is decoded by the data processing decoding unit 42, and comparing and analyzing the light value reflected back by the reflecting member 30 with the light valve value, wherein the light value of the test light emitted back by the reflecting member 30 is smaller than the preset light valve value during calibration, which indicates that the brightness of the test light reaches the brightness standard before calibration, and the test tube is considered to exist.
In addition, before detection, the luminance of the photovoltaic module 10 is automatically calibrated according to a set voltage threshold range, and in the calibration process, if the current value sampled by the analog-to-digital conversion filtering unit 41 exceeds the maximum range value of the detection current threshold, the initial current value of the photovoltaic module 10 is reduced until the current value sampled by the analog-to-digital conversion filtering unit 41 is within the detection current threshold range, and the calibrated current value is stored; if the current value sampled by the analog-to-digital conversion filtering unit 41 is smaller than the minimum range value of the detection current threshold value, increasing the initial current value of the photoelectric module 10 until the current value sampled by the analog-to-digital conversion filtering unit 41 is within the detection current threshold value range, and storing the calibrated current value, wherein the whole calibration process is a closed-loop control calibration process, the current control of the photoelectric module 10 is mainly controlled by the digital-to-analog waveform output adjusting unit, and the circuit can play a role of a voltage follower; the current output of the optoelectronic module 10 is detected by the analog-to-digital conversion filtering unit 41, so as to avoid the luminance attenuation of the test light of the optoelectronic module 10 due to long-term use, and obtain the effect of improving the detection accuracy of the test tube identification device 100, in short, the digital-to-analog waveform output unit 43 can automatically adjust the current value of the optoelectronic module 10 according to the ambient light value and the light-emitting attenuation degree of the optoelectronic module 10, so that the test light of the optoelectronic module reaches the set luminance standard, and the test light of the luminance standard is used for scanning and detecting whether a test tube exists or not, thereby improving the detection accuracy of the test tube identification device 100.
Further, the light value reflected back by the reflecting member 30 is compared with the light valve value for analysis, and if the light value reflected back by the reflecting member 30 is smaller than the light threshold value, it is determined that a test tube exists;
if the light value reflected back by the reflecting member 30 is greater than the light threshold value, it is determined that there is no test tube.
In the present embodiment, the test tube discriminating apparatus 100 is configured to scan and detect a test tube by calibrating the obtained test light with a set standard brightness; judging whether a test tube exists or not according to a light valve value obtained by data processing after the test light obtained by calibration is reflected; and when the brightness of the reflected test light is greater than the light threshold value, determining that no test tube exists.
When no test tube passes through the optical path between the reflecting member 30 and the sensing module 20, the sensing module 20 receives the test light reflected from the reflecting member 30, and the brightness of the test light reaches a corresponding threshold of the brightness standard set during calibration, and then it is determined that no test tube exists; when a test tube passes through the light path between the reflecting member 30 and the sensing module 20, the test tube blocks the light path of the light reflected from the reflecting member 30, so that the brightness of the reflected light received by the sensing module 20 is reduced, and the threshold of the set brightness standard cannot be reached, and then the existence of the test tube is determined.
Further, the sensing module 20 is a fiber sensor. One of the optical fibers in the sensing module 20 transmits the test light formed by the optoelectronic module 10, the formed test light irradiates the reflection member 30 and is reflected back to the sensing module 20, and the other optical fiber in the sensing module 20 transmits the test light back to the optoelectronic module 10 to convert the optical signal into an electrical signal. The reflector 30 is a diffuse reflection plate.
In this embodiment, the sensing module 20 uses an optical fiber sensor, so that the light receiving area is small and is not easily polluted, and the phenomenon that the optical fiber is influenced by the pollutant to cause the detection misjudgment due to the influence of the light brightness is avoided. One of the optical fibers in the sensing module 20 transmits the test light formed by the optoelectronic module 10, irradiates the formed test light to the reflecting member 30 and reflects the test light back to the sensing module 20, and the other optical fiber in the sensing module 20 transmits the test light back to the optoelectronic module 10, and converts the optical signal into an electrical signal by using the optoelectronic module 10.
Further, the optoelectronic module 10 includes a light emitting diode and a converter, the light emitting diode is electrically connected to the sensing module 20 and the digital-to-analog waveform output unit 43, and the converter is electrically connected to the sensing module 20 and the analog-to-digital conversion filtering unit 41.
In this embodiment, the light emitting diode can perform a function of unidirectional signal transmission, and the converter performs a function of converting an optical signal into an electrical signal.
Further, urine analyzer 50 includes support 51, sampling mechanism 52 and test-tube rack 53, sampling mechanism 52 with support 51 fixed connection, and be located the edge of support 51, test-tube rack 53 with support 51 sliding connection. The test tube rack 53 can be used for storing test tubes of various inner diameters and lengths. The photoelectric module 10 with support 51 fixed connection, and be located on the bottom plate of support 51, sensing module 20 with support 51 fixed connection, and be located the inside of support 51's optic fibre mounting box, reflector 30 with advance kind mechanism 52 fixed connection, and be located the inside of advance kind mechanism 52's emergency call position mounting box, single chip module 40 with support 51 fixed connection, and be located the inside of support 51's control panel mounting box.
In this embodiment, the sample feeding mechanism 52 encloses the bottom plate, and inserts a plurality of test tubes with different inner diameters and lengths or a plurality of test tubes with the same inner diameter and length into the test tube rack 53, and the test tube rack 53 moves between the sensing module 20 and the reflection member 30, and light passing through between the reflection member 30 and the sensing module 20 is received by the optoelectronic module 10, converted into an electrical signal, and transmitted to the analog-to-digital conversion filtering unit 41, and is subjected to filtering processing by the analog-to-digital conversion filtering unit 41, and then the data processing decoding unit 42 is used to decode the filtered digital signal, and compare and analyze the light value reflected by the reflection member 30 with the light valve value, so as to obtain whether a test tube exists on the test tube rack 53, thereby preventing the test tube from being missed, and in this process, the digital-to-analog waveform output adjusting unit adjusts the current of the voltage of the optoelectronic module 10, the test light reaches the set brightness standard, so that the brightness attenuation of the test light caused by the long-term use of the photoelectric module 10 is avoided, and the detection accuracy of the test tube recognition device 100 is improved.
Referring to fig. 5, the test tube identification apparatus 100 needs to be calibrated before the test tube is identified by the test tube identification apparatus 100. Before the test tube needs to be tested, a test voltage threshold range is manually or automatically given, and the test tube identification device 100 automatically calibrates the voltage threshold after resetting. In the calibration process, if the voltage value sampled by the analog-to-digital converter ADC exceeds the maximum range value of a preset detection voltage threshold value, the initial current value of the light emitting diode is reduced until the voltage sampled by the analog-to-digital converter ADC is within the detection voltage threshold value range, and the calibrated current value is stored; if the voltage value sampled by the ADC is smaller than the minimum range value of the detection voltage threshold, increasing the initial current value of the light emitting diode until the voltage sampled by the ADC is within the detection voltage threshold range, and storing the calibrated current value. The calibration process before the whole test tube is a closed-loop control calibration process, the digital-to-analog converter DAC controls the current of the light-emitting diode of the hardware circuit, the analog-to-digital converter ADC controls the voltage output of the receiving tube, the hardware circuit can play the role of a voltage follower at the same time, a common integrated circuit formed by triodes is formed, the impedance matching effect can be achieved, and the input voltage and the output voltage can be matched.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Claims (8)
1. A test tube identification device is characterized in that,
the device comprises a photoelectric module, a sensing module, a reflecting piece and a singlechip module; the reflecting piece is arranged on one side of the sensing module, the photoelectric module is electrically connected with the sensing module and the single chip microcomputer module respectively, the single chip microcomputer module comprises a digital-analog waveform output unit, an analog-digital conversion filtering unit and a data processing decoding unit, and the digital-analog waveform output unit, the analog-digital conversion filtering unit and the data processing decoding unit are electrically connected in sequence.
2. Test tube identification device according to claim 1,
the sensing module is an optical fiber sensor.
3. Test tube identification device according to claim 2,
one optical fiber in the sensing module transmits the test light formed by the photoelectric module, the formed test light irradiates the reflecting piece and is reflected back to the sensing module, and the other optical fiber in the sensing module transmits the test light back to the photoelectric module to convert an optical signal into an electric signal.
4. Test tube identification device according to claim 1,
the reflector is a diffuse reflector.
5. Test tube identification device according to claim 1,
the photoelectric module comprises a light emitting diode and a converter, the light emitting diode is electrically connected with the sensing module and the digital-analog waveform output unit respectively, and the converter is electrically connected with the sensing module and the analog-digital conversion filtering unit respectively.
6. A urine analyzer is characterized in that,
the device comprises a support, a sample injection mechanism and a test tube rack, wherein the sample injection mechanism is fixedly connected with the support and is positioned at the edge of the support, and the test tube rack is connected with the support in a sliding manner.
7. The urine analyzer of claim 6,
the test tube rack can be used for storing test tubes with different inner diameters and lengths.
8. The urine analyzer of claim 7,
the photoelectric module with support fixed connection to be located on the bottom plate of support, sensing module with support fixed connection, and be located the inside of the optic fibre mounting box of support, the reflection part with advance kind mechanism fixed connection, and be located advance the inside of the emergency call position mounting box of kind mechanism, single chip module with support fixed connection, and be located the inside of the control panel mounting box of support.
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| CN201921336606.7U CN211653176U (en) | 2019-08-16 | 2019-08-16 | Test tube recognition device and urine analyzer |
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| CN201921336606.7U CN211653176U (en) | 2019-08-16 | 2019-08-16 | Test tube recognition device and urine analyzer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110456424A (en) * | 2019-08-16 | 2019-11-15 | 桂林优利特医疗电子有限公司 | A kind of test tube identification device and Urine Analyzer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110456424A (en) * | 2019-08-16 | 2019-11-15 | 桂林优利特医疗电子有限公司 | A kind of test tube identification device and Urine Analyzer |
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