CN111208175A - Sensor identification method and device and object to be tested test equipment - Google Patents
Sensor identification method and device and object to be tested test equipment Download PDFInfo
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Abstract
The invention discloses a sensor identification method, a sensor identification device and an object to be tested test device, wherein when a sensor is connected, the model of the sensor is determined through an interface signal, the problem that the model of the sensor can only be determined by identifying a high level and a low level is avoided, the bottleneck that the same sensor model can not measure various objects to be tested is solved, and the problem that the sensor model with the same electrode number is limited is also solved. The sensor identification device includes: the sensor comprises a sensor interface module, an interface signal acquisition module and a sensor identification module, wherein the interface signal acquisition module is connected with the sensor interface module and the sensor identification module; the sensor comprises a sensor interface module used for detecting whether a sensor is accessed, an interface signal acquisition module used for acquiring an interface signal of the sensor interface module when the sensor is accessed to the sensor interface module, and a sensor identification module used for determining the model of the sensor according to the interface signal.
Description
Technical Field
The invention relates to the field of In Vitro Diagnostic (IVD), In particular to a sensor identification method and device and an object to be tested test device.
Background
Chemical sensors are devices that convert chemical signals into analyzable signals, and the chemical information may be the concentration of a particular sample or the total composition. Chemical sensors typically comprise two basic components in series: a chemical identification system and a physicochemical energy converter. Chemical sensors have found wide application in the field of engineering. A biosensor is a special chemical sensor that uses a bio-sensitive element to recognize a signal, and an electrochemical sensor is widely used in IVD.
The purpose of identifying the model of the electrochemical sensor is as follows: firstly, under the condition that the testing device can only test a single sensor, in order to prevent different types of electrochemical sensors (such as blood sugar, blood ketone, creatinine, uric acid and the like) from being inserted into the same detection device (instrument) to cause wrong detection, the sensors which are not matched with the testing device are subjected to error reporting processing or non-detection processing; and secondly, under the condition that the same testing device tests various sensors (different objects to be tested, such as blood sugar, blood ketone, creatinine, uric acid and the like), the correct measuring mode and calculation method are selected by identifying the model of the sensor. At present, the identification of the model of the electrochemical sensor is usually realized by triggering different I/O ports, after the sensor is inserted into a detection device, the detection I/O port is short-circuited to a reference ground plane to realize starting, and the model of the sensor is judged by different short-circuited positions on the sensor. Due to the limitation of the sensor production process (screen printing or laser after whole plate electroplating), the number of PINs of the connector PIN between the sensor with the same width and the detection device is limited, taking a 4PIN sensor structure model and the connector (socket) as an example: at most, 4 PINs support the identification of 3 types of sensors, and these three types of sensors are difficult to test in the same test apparatus.
The identification types of the existing sensor models are limited, if the sensor types are increased, other modes such as adding PIN PINs of a test strip and a socket are needed, but the sensor with the same electrode width is difficult to realize due to the limitation of the production process. The sensor model is limited under the condition that the detection device has the same number of electrodes; and the detection device has limited identifiable sensor types under the same sensor model, and cannot measure various objects to be measured.
Disclosure of Invention
The invention aims to provide a sensor identification method, a sensor identification device and an object to be tested test device, wherein when a sensor is connected, the model of the sensor is determined through an interface signal, the problem that the model of the sensor can only be determined by identifying a high level and a low level is avoided, the bottleneck that the same sensor model cannot measure various objects to be tested is solved, and the problem that the sensor model with the same electrode number is limited is also solved.
A first aspect of the present invention provides a sensor identification apparatus comprising:
the device comprises a sensor interface module, an interface signal acquisition module and a sensor identification module;
the interface signal acquisition module is connected with the sensor interface module and the sensor identification module;
the sensor interface module is used for detecting whether the sensor is accessed;
the interface signal acquisition module is used for acquiring an interface signal of the sensor interface module when the sensor is accessed to the sensor interface module;
and the sensor identification module is used for determining the model of the sensor according to the interface signal.
Further, the sensor interface module includes:
the sensor starting positive electrode interface and the sensor starting negative electrode interface;
the sensor starting positive electrode interface is used for being connected with a starting positive electrode of the sensor;
and the sensor starting negative electrode interface is used for being connected with the starting negative electrode of the sensor.
Further, the interface signal acquiring module includes:
the device comprises a power supply unit, a pull-up resistor, a signal interface and a signal processing unit;
the power supply unit is connected with the sensor startup positive electrode interface through a pull-up resistor, and the signal interface is connected with the sensor startup positive electrode interface;
and the signal processing unit is used for acquiring interface voltage through the signal interface and converting the interface voltage into an interface signal through analog-to-digital conversion when the sensor is connected to the sensor interface module.
Further, the sensor identification module includes:
a signal receiving unit and a sensor identification unit;
the signal receiving unit is used for receiving the interface signal sent by the signal processing unit;
and the sensor identification unit is used for inquiring the corresponding model of the sensor in the sensor model comparison table according to the interface signal.
Further, the sensor identification module further comprises:
a sensor model comparison table generation unit;
the sensor model comparison table generation unit is used for acquiring a voltage value of the power supply unit, a pull-up resistance value of the pull-up resistor, and an electrode equivalent resistance value and a model of the training sensor;
the sensor model comparison table generation unit is also used for calculating an interface signal of the training sensor according to the voltage value, the pull-up resistance value and the electrode equivalent resistance value;
and the sensor model comparison table generation unit is also used for generating a sensor model comparison table according to the interface signal and the model of the training sensor.
A second aspect of the present invention provides a sensor identification method, including:
detecting whether a sensor is accessed;
when the sensor is accessed, acquiring an interface signal accessed by the sensor;
and determining the model of the sensor according to the interface signal.
Further, acquiring an interface signal accessed by the sensor includes:
the interface voltage of the access end of the sensor is obtained, and the interface voltage is converted into an interface signal through analog-to-digital conversion.
Further, determining the model of the sensor according to the interface signal comprises:
and according to the digital interface signal, inquiring in a sensor model comparison table to obtain the corresponding model of the sensor.
Further, the method further comprises:
acquiring a voltage value, a pull-up resistance value, and an electrode equivalent resistance value and a model of a training sensor;
calculating to obtain an interface signal of the training sensor according to the voltage value, the pull-up resistance value and the electrode equivalent resistance value;
and generating a sensor model comparison table according to the interface signal and the model of the training sensor.
A third aspect of the present invention provides an object testing apparatus, comprising:
a processor, the sensor identification device of the first aspect above;
the sensor identification device is used for determining the type of the sensor, the type of the sensor is at least one, and each type of the sensor corresponds to one object to be tested;
the processor is used for selecting a corresponding test mode and a corresponding calculation method according to the type of the sensor;
and the processor is also used for acquiring the data of the object to be tested of the sensor, and carrying out test calculation on the data of the object to be tested according to the test mode and the calculation method to obtain the test result of the object to be tested.
Therefore, the sensor identification device comprises a sensor interface module, an interface signal acquisition module and a sensor identification module, wherein the interface signal acquisition module is connected with the sensor interface module and the sensor identification module, the sensor interface module detects whether a sensor is connected, when the sensor is connected to the sensor interface module, the interface signal acquisition module acquires an interface signal of the sensor interface module, and the sensor identification module determines the model of the sensor according to the interface signal. Because the model of the sensor is determined through the interface signal, compared with the identification of the existing sensor model, the model of the sensor is prevented from being determined only by identifying the high level and the low level, so that the bottleneck that the same sensor model cannot measure various objects to be measured is solved, and the problem that the sensor model with the same electrode number is limited is also solved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed in the prior art and the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of a sensor identification device provided in the present invention;
FIG. 2 is a schematic structural diagram of another embodiment of a sensor identification device provided in the present invention;
fig. 3 is an equivalent circuit diagram of a sensor identification device provided by the present invention;
FIG. 4 is a schematic flow chart diagram illustrating one embodiment of a sensor identification method provided by the present invention;
fig. 5 is a schematic structural diagram of an embodiment of the dut testing apparatus provided in the present invention.
Detailed Description
The core of the invention is to provide a sensor identification method, a sensor identification device and an object to be tested test device, when a sensor is accessed, the model of the sensor is determined through an interface signal, the model of the sensor can be prevented from being determined only by identifying a high level and a low level, the bottleneck that the same sensor model can not measure various objects to be tested is solved, and the problem that the sensor model with the same electrode number is limited is also solved.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. 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.
Referring to fig. 1, an embodiment of the invention provides a sensor identification apparatus, including:
the system comprises a sensor interface module 101, an interface signal acquisition module 102 and a sensor identification module 103;
the interface signal acquisition module 102 is connected with the sensor interface module 101 and the sensor identification module 103;
the sensor interface module 101 is used for detecting whether the sensor is accessed;
an interface signal acquisition module 102, configured to acquire an interface signal of the sensor interface module 101 when the sensor is connected to the sensor interface module 101;
and the sensor identification module 103 is used for determining the model of the sensor according to the interface signal.
In the embodiment of the present invention, the sensor identification apparatus includes a sensor interface module 101, an interface signal acquisition module 102, and a sensor identification module 103, where the interface signal acquisition module 102 is connected to the sensor interface module 101 and the sensor identification module 103, the sensor interface module 101 detects whether a sensor is connected, when the sensor is connected to the sensor interface module 101, the interface signal acquisition module 102 acquires an interface signal of the sensor interface module 101, and the sensor identification module 103 determines the model of the sensor according to the interface signal. Because the model of the sensor is determined through the interface signal, compared with the identification of the existing sensor model, the model of the sensor is prevented from being determined only by identifying the high level and the low level, so that the bottleneck that the same sensor model cannot measure various objects to be measured is solved, and the problem that the sensor model with the same electrode number is limited is also solved.
Optionally, as shown in fig. 2, the sensor interface module 101 includes:
a sensor start-up positive electrode interface 201 and a sensor start-up negative electrode interface 202;
a sensor startup positive electrode interface 201 for connecting with a startup positive electrode of a sensor;
and a sensor startup negative electrode interface 202 for connecting with the startup negative electrode of the sensor.
Optionally, as shown in fig. 2, the interface signal obtaining module 102 includes:
a power supply unit 203, a pull-up resistor 204, a signal interface 205, and a signal processing unit 206;
the power supply unit 203 is connected with the sensor startup positive electrode interface 201 through the pull-up resistor 204, and the signal interface 205 is connected with the sensor startup positive electrode interface 201;
and the signal processing unit 206 is configured to, when the sensor is connected to the sensor interface module, obtain an interface voltage through the signal interface 205, and convert the interface voltage into an interface signal through analog-to-digital conversion.
Alternatively, as shown in fig. 2, the sensor identification module 103 includes:
a signal receiving unit 207 and a sensor identifying unit 208;
a signal receiving unit 207, configured to receive the interface signal sent by the signal processing unit 206;
and the sensor identification unit 208 is used for querying the sensor model comparison table according to the interface signal to obtain the corresponding sensor model.
Optionally, as shown in fig. 2, the sensor identification module 103 further includes:
a sensor model comparison table generation unit 209;
a sensor model comparison table generating unit 209, configured to obtain a voltage value of the power supply unit 203, a pull-up resistance value of the pull-up resistor 204, and an electrode equivalent resistance value and model of the training sensor;
the sensor model comparison table generating unit 209 is further configured to calculate an interface signal of the training sensor according to the voltage value, the pull-up resistance value and the electrode equivalent resistance value;
the sensor model comparison table generating unit 209 is further configured to generate a sensor model comparison table according to the interface signal and the model of the training sensor.
With reference to the above embodiments and fig. 2, the sensor identification device is described in detail as follows;
the electrodes of the sensor are made of conductive materials such as carbon, silver and gold through screen printing (electroplating and laser), so that the electrodes have resistors, the sensor starting positive electrode interface 201 and the sensor starting negative electrode interface 202 also have resistors, the equivalent resistors of the sensor electrodes, the sensor starting positive electrode interface 201 and the sensor starting negative electrode interface 202 are R2 and R3, and the resistors R2 and R3 have different resistance values (R2 and R3 are equivalent resistors on the electrodes 1 and 2) due to the fact that the conductive materials used for the sensor electrodes are different; also, the difference in length and width of the sensor electrodes causes the R2 and R3 resistances to be different.
After the sensor startup positive electrode interface 201 and the sensor startup negative electrode interface 202 detect that the sensor is inserted, the equivalent circuit diagram is shown in fig. 3, if two different materials, namely a carbon electrode and a silver electrode, are adopted, the carbon electrode corresponds to the sensor a, and the silver electrode corresponds to the sensor b; the resistance of the carbon electrode material is large, for example, R2+ R3 is 2000 Ω, the resistance of the silver electrode material is small, for example, R2+ R3 is 20 Ω, the pull-up resistor R1 is fixed to 10000 Ω, after the sensor is inserted into the testing device, the signal interface 205 detects voltage, the detected voltage is VCC (R2+ R3)/(R1+ R2+ R3), the voltage detected by the carbon electrode sensor a is VCC/6, and the voltage detected by the sensor b is VCC/5001, so that two different sensors can be easily distinguished; if two sensors use carbon electrodes, the length of the electrodes is changed (the width is equal, the equivalent resistance of the electrodes is proportional to the length of the electrodes), the total length of the electrode 1 and the electrode 2 of the sensor A is 1cm, the total length of the electrode 1 and the electrode 2 of the sensor B is 1.5cm, if the equivalent resistance on the sensor A is R2+ R3 is 2000 omega, the equivalent resistance on the sensor B is R2+ R3 is 3000 omega, and the pull-up resistance R1 is 10000 omega, so that the voltage detected by the signal interface 205 after the sensor A is inserted into the detection device is VCC/6, and the voltage detected by the signal interface 205 after the sensor B is inserted into the detection device is 3VCC/13, thus two different sensors can be easily distinguished; if two kinds of sensors use carbon electrodes, the width of the electrode is changed (the length is equal, the equivalent resistance of the electrode is inversely proportional to the electrode width), the electrode width of the sensor A is 2mm, the electrode width of the sensor B is 4mm, if the equivalent resistance of the sensor A is R2+ R3 is 2000 omega, the equivalent resistance of the sensor B is R2+ R3 is 1000 omega, the pull-up resistance R1 is fixed to 10000 omega, after the sensor A is inserted into the detection device, the voltage detected by the signal interface 205 is VCC/6, and after the sensor B is inserted into the detection device, the voltage detected by the signal interface 205 is VCC/11, thus two kinds of different sensors can be easily distinguished.
The signal processing unit obtains the interface voltage through the signal interface 205, and because the material, the length and the width of the electrode are different, the resistance values of R2 and R3 are different, the interface voltage value read by the signal interface 205 is different, and the corresponding sensor models are different, the purpose of test strip model can be achieved by adjusting the material, the length and the width of the electrode, namely, the same sensor model can measure various objects to be measured only by adjusting the resistance values of R2 and R3. The signal processing unit 206 converts the interface voltage into an interface signal through analog-to-digital conversion, the sensor identification unit 208 queries the corresponding sensor model in the sensor model comparison table according to the interface signal, the sensor model comparison table is generated in advance by the sensor model comparison table generation unit 209, and the generation process is as follows: the sensor model comparison table generating unit 209 obtains the voltage value of the power supply unit 203, the pull-up resistance value of the pull-up resistor 204, and the electrode equivalent resistance value and model of the training sensor, calculates an interface signal of the training sensor according to the voltage value, the pull-up resistance value, and the electrode equivalent resistance value, and generates a sensor model comparison table according to the interface signal and model of the training sensor.
The sensor identification device of the present invention is described in the above embodiments, and the sensor identification method applied to the sensor identification device is specifically described below by way of the embodiments.
Referring to fig. 4, an embodiment of the invention provides a sensor identification method, including:
401. detecting whether a sensor is accessed;
in the present embodiment, the sensor recognition method is applied to the sensor recognition apparatus of the embodiment shown in fig. 1 to 3, and according to the above description of the sensor recognition apparatus, whether the sensor is connected or not can be detected due to the presence of the power supply unit and the pull-up resistor.
402. When the sensor is accessed, acquiring an interface signal accessed by the sensor;
in this embodiment, when the sensor is accessed, the interface voltage after the sensor is accessed is obtained through the signal interface, and the interface voltage is converted into the interface signal through analog-to-digital conversion.
403. And determining the model of the sensor according to the interface signal.
In this embodiment, according to a digital interface signal, a model of a corresponding sensor is obtained by querying in a sensor model comparison table, which is obtained by training in advance, and the specific method is to obtain a voltage value, a pull-up resistance value, and an electrode equivalent resistance value and a model of a training sensor, where the electrode equivalent resistance value of the training sensor is determined by different conductive materials, lengths, and widths used by a sensor electrode, and the interface signal of the training sensor can be obtained by calculation only according to the voltage value, the pull-up resistance value, and the electrode equivalent resistance value, and the interface signal and the model of the training sensor are stored in an associated manner to generate the sensor model comparison table. Under the condition of known interface signals, the model of the sensor can be found by inquiring the model comparison table of the sensor through the interface signals.
Referring to fig. 5, an embodiment of the invention provides a device for testing an object to be tested, including:
a processor 501 and a sensor identification device 502;
the sensor identification device 502 is used for determining the types of the sensors, the types of the sensors are at least one, and each type corresponds to one object to be tested;
the processor 501 is configured to select a corresponding test mode and a corresponding calculation method according to the type of the sensor;
the processor 501 is further configured to obtain data of an object to be tested of the sensor, and perform test calculation on the data of the object to be tested according to the test mode and the calculation method to obtain a test result of the object to be tested.
In the embodiment of the invention, the sensor identification device 502 determines the type of the sensor, the type of the sensor is at least one, each type of the sensor corresponds to one object to be tested, and the processor 501 is used for selecting a corresponding test mode and a corresponding calculation method according to the type of the sensor; the processor 501 is further configured to obtain data of an object to be tested of the sensor, and perform test calculation on the data of the object to be tested according to the test mode and the calculation method to obtain a test result of the object to be tested. The specific process of the sensor identification device 502 determining the model of the sensor is described above with reference to the embodiments of the sensor identification device.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A sensor identification device, comprising:
the device comprises a sensor interface module, an interface signal acquisition module and a sensor identification module;
the interface signal acquisition module is connected with the sensor interface module and the sensor identification module;
the sensor interface module is used for detecting whether the sensor is accessed;
the interface signal acquisition module is used for acquiring an interface signal of the sensor interface module when the sensor is accessed to the sensor interface module;
and the sensor identification module is used for determining the model of the sensor according to the interface signal.
2. The apparatus of claim 1, wherein the sensor interface module comprises:
the sensor starting positive electrode interface and the sensor starting negative electrode interface;
the sensor starting positive electrode interface is used for being connected with a starting positive electrode of the sensor;
and the sensor starting negative electrode interface is used for being connected with the starting negative electrode of the sensor.
3. The apparatus of claim 2, wherein the interface signal obtaining module comprises:
the device comprises a power supply unit, a pull-up resistor, a signal interface and a signal processing unit;
the power supply unit is connected with the positive electrode interface for sensor startup through the pull-up resistor, and the signal interface is connected with the positive electrode interface for sensor startup;
and the signal processing unit is used for acquiring interface voltage through the signal interface and converting the interface voltage into an interface signal through analog-to-digital conversion when the sensor is connected to the sensor interface module.
4. The apparatus of claim 3, wherein the sensor identification module comprises:
a signal receiving unit and a sensor identification unit;
the signal receiving unit is used for receiving the interface signal sent by the signal processing unit;
and the sensor identification unit is used for inquiring a corresponding model of the sensor in a sensor model comparison table according to the interface signal.
5. The apparatus of claim 4, wherein the sensor identification module further comprises:
a sensor model comparison table generation unit;
the sensor model comparison table generation unit is used for acquiring a voltage value of the power supply unit, a pull-up resistance value of the pull-up resistor, and an electrode equivalent resistance value and a model of the training sensor;
the sensor model comparison table generation unit is further used for calculating an interface signal of the training sensor according to the voltage value, the pull-up resistance value and the electrode equivalent resistance value;
and the sensor model comparison table generation unit is also used for generating a sensor model comparison table according to the interface signal and the model of the training sensor.
6. A sensor identification method, comprising:
detecting whether a sensor is accessed;
when a sensor is accessed, acquiring an interface signal accessed by the sensor;
and determining the model of the sensor according to the interface signal.
7. The method of claim 6, wherein the acquiring the interface signal accessed by the sensor comprises:
and acquiring interface voltage of an access end of the sensor, and converting the interface voltage into an interface signal through analog-to-digital conversion.
8. The method of claim 7, wherein said determining the model of the sensor from the interface signal comprises:
and inquiring in a sensor model comparison table according to the digital interface signal to obtain the corresponding model of the sensor.
9. The method of claim 8, further comprising:
acquiring a voltage value, a pull-up resistance value, and an electrode equivalent resistance value and a model of a training sensor;
calculating to obtain an interface signal of the training sensor according to the voltage value, the pull-up resistance value and the electrode equivalent resistance value;
and generating a sensor model comparison table according to the interface signal and the model of the training sensor.
10. An object testing apparatus, comprising:
a processor, the sensor identification device of claims 1-5 above;
the sensor identification device is used for determining the type of the sensor, the type of the sensor is at least one, and each type of the sensor is used for correspondingly testing one object to be tested;
the processor is used for selecting a corresponding test mode and a corresponding calculation method according to the type of the sensor;
the processor is further configured to obtain data of the object to be tested of the sensor, and perform test calculation on the data of the object to be tested according to the test mode and the calculation method to obtain a test result of the object to be tested.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111956936A (en) * | 2020-08-25 | 2020-11-20 | 深圳市赛禾医疗技术有限公司 | Pressure wave balloon catheter identification method and treatment device for angioplasty |
| CN112083243A (en) * | 2020-08-25 | 2020-12-15 | 深圳市赛禾医疗技术有限公司 | Catheter type identification method and device, terminal equipment and readable storage medium |
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| CN114739543A (en) * | 2022-04-21 | 2022-07-12 | 深圳国微感知技术有限公司 | Adaptive identification system for pressure distribution measurement |
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| CN114739543A (en) * | 2022-04-21 | 2022-07-12 | 深圳国微感知技术有限公司 | Adaptive identification system for pressure distribution measurement |
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