WO2020147173A1

WO2020147173A1 - Saliva testing device and system

Info

Publication number: WO2020147173A1
Application number: PCT/CN2019/077051
Authority: WO
Inventors: 罗国发; 刘洪涛; 张文瑶; 李浪; 刘建兵; 龚梅军
Original assignee: 深圳和而泰数据资源与云技术有限公司
Priority date: 2019-01-18
Filing date: 2019-03-05
Publication date: 2020-07-23
Also published as: CN109856201A

Abstract

A saliva testing device and system, comprising a test chip (100), a first connector (110) and a test plate (200). The test chip (100) is used to test saliva so as to acquire saliva test data. The first connector (110) and the test chip (100) are fixedly connected. The test plate (200) comprises a second connector (210) that is insertedly connected to the first connector (110), as well as a micro-controller (220). The micro-controller (220) and the second connector (210) are electrically connected. The micro-controller (220) is used to acquire the saliva test data from the test chip (100). Also provided is a saliva test system. The test chip (100) and the test plate (200) are designed so as to be detached, thus operation is easy and the present invention may be used at any place, having the advantage of high adaptability.

Description

Saliva detection device and system

Related application

This application claims the priority of the Chinese patent application filed on January 18, 2019, the application number is 201910048608.4, and the name is "saliva detection device", which is hereby incorporated by reference in its entirety.

Technical field

This application relates to the field of home medical technology, and more specifically, to a saliva detection device and system.

Background technique

The statements here only provide background information related to the present application and do not necessarily constitute prior art.

Saliva is a complex mixture that not only contains various proteins, but also DNA, RNA, fatty acids and various microorganisms. Studies have found that various protein components in the blood are also present in saliva, and saliva can reflect changes in the levels of various proteins in the blood. Therefore, it is possible to diagnose diseases through saliva detection.

At present, the use of saliva as a diagnostic medium is attracting more and more scholars' attention. Saliva testing can be performed in a variety of environments (including on the roadside) and provide valuable diagnostic information. At present, saliva has been used for the detection of HIV, HBV, and various drugs (such as cocaine and alcohol). As the research work of saliva detection continues to deepen, its application will realize the transition from disease diagnosis to health monitoring.

At present, the use of electronic instruments to detect saliva can only be used in hospitals or other fixed places, and requires professionals to operate it. Not only is the operation complicated, it cannot be carried around, and its applicability is poor.

Application content

Based on this, it is necessary to provide a saliva detection device and system in view of the complicated operation and inconvenience of carrying around the existing electronic instrument for detecting saliva, which leads to poor applicability.

A saliva detection device includes:

Detection chip, used to detect saliva to obtain saliva detection data;

The first connector is fixedly connected to the detection chip;

A detection board, which includes a second connector and a microcontroller that are plug-in-connected with the first connector; wherein,

The microcontroller is electrically connected to the second connector, and is used to obtain the saliva detection data.

In one of the embodiments, the first connector is a USB Type-C male connector; the second connector is a USB Type-C female connector.

In one of the embodiments, the first connector and the second connector communicate according to a first preset communication protocol.

In one of the embodiments, the first connector is a male lightning connector; the second connector is a female lightning connector.

In one of the embodiments, the first connector and the second connector communicate according to a second preset communication protocol.

In one of the embodiments, the detection board further includes:

A wireless communication device, where the microcontroller performs data interaction with a host device through the wireless communication device.

In one of the embodiments, the detection board further includes:

Micro battery

A voltage stabilization protection circuit, the micro battery is electrically connected to the second connector through the voltage stabilization protection circuit.

In one of the embodiments, the voltage stabilization protection circuit includes:

A voltage stabilizer, the input end of the voltage stabilizer is electrically connected to the micro battery, and the first output end of the voltage stabilizer is grounded;

A current-limiting component, the input end of the current-limiting component is electrically connected to the second output end of the voltage regulator, and the output end of the current-limiting component is electrically connected to the second connector.

In one of the embodiments, the current limiting component includes:

A current-limiting resistor, one end of the current-limiting resistor is electrically connected to the second output terminal of the voltage regulator;

A diode, the anode of the diode is electrically connected to the other end of the current limiting resistor, and the cathode of the diode is electrically connected to the second connector.

In one of the embodiments, the second connector includes:

The first detection pin is grounded through the first resistor and used to detect the level of the first on-voltage of the first resistor;

The second detection pin is grounded through the second resistor and used to detect the level of the second conduction voltage of the second resistor.

In one of the embodiments, the microcontroller determines whether the voltage between the first connector and the second connector is based on the level of the first turn-on voltage and the second turn-on voltage. Insertion direction is forward insertion or reverse insertion;

If the first turn-on voltage is at a high level and the second turn-on voltage is at a low level, the first connector and the second connector are inserted in the forward direction;

If the first turn-on voltage is at a low level and the second turn-on voltage is at a high level, the first connector and the second connector are reversely inserted.

In one of the embodiments, the microcontroller is further configured to determine whether the first connector is inserted into the second connection according to the level of the first turn-on voltage and the second turn-on voltage Device

If the first turn-on voltage and the second turn-on voltage are both at a low level, the first connector is not connected to the second connector.

In one of the embodiments, the detection wafer is a nano sensor.

A saliva detection device includes:

Detection chip, used to detect saliva to obtain saliva detection data;

The first connector is fixedly connected to the detection chip;

A detection board, the detection board includes a second connector plug-in connection with the first connector, a microcontroller and a wireless communication device; wherein,

The second connector includes a first detection pin and a second detection pin. The first detection pin is grounded through a first resistor and is used to detect the level of the first conduction voltage of the first resistor , The second detection pin is grounded through a second resistor, and is used to detect the level of the second conduction voltage of the second resistor;

The microcontroller is electrically connected to the second connector, and is configured to determine whether the first connector is connected to the second connector according to the level of the first conduction voltage and the second conduction voltage. For the insertion direction between the two connectors, the microcontroller is also used to obtain the saliva detection data, and perform data interaction with the host device through the wireless communication device.

A saliva detection system includes a saliva detection device and host equipment; wherein, the saliva detection device includes:

Detection chip, used to detect saliva to obtain saliva detection data;

The first connector is fixedly connected to the detection chip;

A detection board, the detection board comprising a second connector and a microcontroller that are plug-in connection with the first connector; and,

The microcontroller is electrically connected to the second connector, and is used to obtain the saliva detection data and perform data interaction with the host device.

In one of the embodiments, the second connector includes a first detection pin and a second detection pin. The first detection pin is grounded through a first resistor and is used to detect the first resistance of the first resistor. The level of the turn-on voltage;

The second detection pin is grounded through a second resistor, and is used to detect the level of the second conduction voltage of the second resistor;

The microcontroller is electrically connected to the second connector, and is configured to determine whether the first connector is connected to the second connector according to the level of the first conduction voltage and the second conduction voltage. The direction of insertion between the two connectors.

It can be seen from the above technical solutions that the above saliva detection device adopts a separate design for the detection chip and the detection plate, and through the cooperation of the first connector and the second connector, the saliva can be Substance detection is not only easy to operate, but also can be used in any place, with the advantage of strong adaptability. At the same time, the saliva detection device of the present application has the advantages of small size, simple structure, convenient carrying, and low cost.

BRIEF DESCRIPTION

In order to more clearly describe the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are the embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on the disclosed drawings without creative work.

FIG. 1 is a structural block diagram of a saliva detection device provided by an embodiment of the application;

2 is a schematic diagram of the structure of a detection board provided by an embodiment of the application;

3 is a schematic diagram of the structure of a detection chip and a first connector provided by an embodiment of the application;

4 is a schematic diagram of a pin structure of a second connector provided by an embodiment of the application;

5 is a schematic diagram of the structure of a current channel, a first diode, and a second diode provided by an embodiment of the application;

FIG. 6 is a schematic diagram of a partial circuit of a saliva detection device provided by an embodiment of the application;

FIG. 7 is a circuit block diagram of a saliva detection device provided by an embodiment of the application.

Reference mark

10 Saliva detection device

100 inspection chips

101 Nano sensor

110 First connector

200 detection board

210 Second connector

211 The first detection pin

212 First resistance

213 Second detection pin

214 Second resistor

220 Microcontroller

230 Wireless communication devices

231 NFC coil

300 host equipment

400 micro battery

500 voltage stabilization protection circuit

510 voltage regulator

520 current limiting components

521 Current limiting resistor

522 Diode

detailed description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

Referring to FIGS. 1 to 3, an embodiment of the present application provides a saliva detection device 10 including a detection chip 100, a first connector 110 and a detection board 200. The detection chip 100 is used to detect saliva to obtain saliva detection data. The first connector 110 is fixedly connected to the detection chip 100. The detection board 200 includes a second connector 210 and a microcontroller 220 that are plug-in connection with the first connector 110. The microcontroller 220 is electrically connected to the second connector 210. The microcontroller 220 is used to obtain the saliva detection data of the detection chip 100.

It can be understood that the shape of the detection wafer 100 is not limited, as long as it can be put in the mouth to detect saliva. In an embodiment, the shape of the detection wafer 100 may be a long flat shape. In one embodiment, the shape of the detection wafer 100 can also be designed to fit into the mouth, so that the detection wafer 100 can contact the saliva in the mouth, so that the detection wafer 100 can fully contact the saliva.

In one embodiment, the parts of the detection wafer 100 that are in contact with the oral cavity of the human body are required to be non-toxic, harmless, and tasteless. In one embodiment, the edge of the detection wafer 100 is designed to be smooth and rounded so as not to scratch the oral cavity. In an embodiment, saliva may also be dropped on the detection wafer 100 outside the body, which can reduce the requirement for the harmlessness of the material of the detection wafer 100.

It can be understood that the specific structure of the detection wafer 100 is not specifically limited, as long as the detection wafer 100 has the function of detecting saliva. The specific structure of the inspection wafer 100 can be selected according to actual needs. In an embodiment, the detection wafer 100 may be a nano sensor 101.

In one embodiment, the nanosensor 101 may include 5 detection channels, which can detect different virus surface proteins and genetic material sequences, such as small molecules, proteins, viruses, and bacteria. Different concentrations of the tested substance will change the channel current. The range is 0-1000uA, and the typical value is 100uA. The back-end circuit (that is, the detection board 200) detects the magnitude of the current again to calculate the concentration of the substance to be tested.

In one embodiment, the test wafer 100 is produced using a standard wafer process. In an embodiment, the inspection wafer 100 is provided with five inspection channels, and a maximum of 5 results can be obtained in one test, which has the characteristic of strong applicability. In one embodiment, each channel is time-division multiplexed, and only one channel is gated and measured at the same time.

It can be understood that the manner in which the first connector 110 is fixedly connected to the detection chip 100 is not limited, as long as the first connector 110 and the detection chip 100 are fixedly secured. In one embodiment, the first connector 110 and the detection chip 100 are welded and fixed in a high temperature environment.

It can be understood that the specific structures of the first connector 110 and the second connector 210 are not specifically limited, as long as the data communication between the first connector 110 and the second connector 210 is ensured OK. The specific structures of the first connector 110 and the second connector 210 can be selected according to actual needs. In one embodiment, the first connector 110 may be a male connector of a USB connector, and the second connector 210 may be a female connector of a USB connector. In one embodiment, the first connector 110 may be a male connector of an HDMI (High Definition Multimedia Interface) connector, and the second connector 210 may be a female connector of an HDMI connector.

In an embodiment, the microcontroller 220 may be an MCU (micro control unit or single-chip microcomputer) with integrated NFC (Near Field Communication, near field communication) function. In one embodiment, the MCU can be powered by the NFC coil 231, and no other power supply is needed. In an embodiment, the microcontroller 220 may also be another integrated chip with detection and control functions. Due to the small size of the microcontroller 220, the overall volume of the detection board 200 can be greatly reduced, thereby facilitating carrying around.

In an embodiment, the detection board 200 further includes a wireless communication device 230. The microcontroller 220 exchanges data with the host device 300 through the wireless communication device 230. It can be understood that the communication mode of the wireless communication device 230 is not limited, as long as it has a wireless communication function. In an embodiment, the communication mode of the wireless communication device 230 may be Bluetooth. In an embodiment, the communication mode of the wireless communication device 230 may also be WIFI. In an embodiment, the communication mode of the wireless communication device 230 may also be a radio frequency signal. The wireless communication device 230 can realize data interaction between the microcontroller 220 and the host device 320.

In one embodiment, the second connector 210 and the first connector 110 can be inserted in the front and back. In an embodiment, the second connector 210 includes a first detection pin 211 and a second detection pin 213. In one embodiment, the microcontroller 220 is used to detect whether the second connector 210 is inserted into the first connector 110. In an embodiment, when the microcontroller 220 detects that the voltages of the first detection pin 211 and the second detection pin 213 in the second connector 210 are both low, it is described The first connector 110 is not inserted into the second connector 210 or the first connector 110 and the second connector 210 are not firmly inserted. In this way, it can be determined whether the second connector 210 is inserted into the first connector 110, which increases the reliability of use.

In one embodiment, the microcontroller 220 obtains the inspection data of the inspection wafer 100 through the cooperative use of the first connector 110 and the second connector 210, and uses the wireless communication device 230 Send to the host device 300. In an embodiment, the host device 300 may be a mobile phone or a tablet, etc., through which the detection data is displayed and stored in a background database for long-term monitoring.

In this embodiment, the detection wafer 100 and the detection board 200 adopt a separate design, and through the cooperation of the first connector 110 and the second connector 210, the detection of saliva substances can be completed , Not only easy to operate, but also can be used in any place, with the advantage of strong adaptability. At the same time, this embodiment has the advantages of small size, simple structure, convenient carrying and low cost.

Referring to FIG. 4, in one embodiment, the first detection pin 211 of the second connector 210 is grounded through a first resistor 212. The first detection pin 211 is used to detect the level of the first turn-on voltage of the first resistor 212. The second detection pin 213 in the second connector 210 is grounded through a second resistor 214. The second detection pin 213 is used to detect the level of the second conduction voltage of the second resistor 214.

In one embodiment, the microcontroller 220 determines whether the first connector 110 and the second connector 210 are based on the level of the first turn-on voltage and the second turn-on voltage. The direction of insertion between is forward insertion or reverse insertion. If the first turn-on voltage is at a high level and the second turn-on voltage is at a low level, the first connector 110 and the second connector 210 are inserted in the forward direction. If the first turn-on voltage is at a low level and the second turn-on voltage is at a high level, the first connector 110 and the second connector 210 are reversely inserted. The positions of the first detection pin 211 and the second detection pin 213 in the second connector 210 can be set according to actual needs. According to the level of the first turn-on voltage and the second turn-on voltage, it can be determined whether the insertion direction between the first connector 110 and the second connector 210 is forward or reverse. Insert, has the advantage of convenient use.

In one embodiment, the first connector 110 is a USB Type-C male connector. The second connector 210 is a USB Type-C female connector. In an embodiment, the board thickness of the USB Type-C terminals (ie, USB Type-C male and female) can be set between 0.8-1 mm, and the height of the USB Type-C female can be set at 1-3 mm, which can realize the card design, so that the saliva detection device 10 is easy to carry.

In one embodiment, the first connector 110 and the second connector 210 communicate according to a first preset communication protocol. In an embodiment, the first preset communication protocol may be a standard protocol of the USB Type-C terminal. In an embodiment, the first preset communication protocol may also be a customized communication protocol of the USB Type-C terminal, as long as it can realize the communication between the first connector 110 and the second connector 210. It is sufficient to ensure that the USB Type-C terminal adopting a standard protocol will not damage the detection board 200 when inserted into the second connector 210.

In an embodiment, the customized communication protocol of the USB Type-C terminal may be as shown in the following table:

The list of female header pins is as follows:

The list of male pins is as follows:

As shown in the above table, the positions and numbers of the power pins Vchip and the ground pins GND of the USB Type-C male and USB Type-C female connectors are maintained, and the voltage of the power pin Vchip is maintained at 1V. The five current channels in the USB Type-C male header and the USB Type-C female header are OUT1-5, respectively, and are placed in flipped symmetrical positions. The USB Type-C male connector is connected to Vchip at position A8, and the detected pins in the USB Type-C female connector are CC1 (that is, the first detection pin 211) and CC2 (that is, the second detection pin). 213), these two pins are connected to 100K resistance to ground. In an embodiment, the number of the current channels can be selected according to actual needs, and is not limited to 5, and can also be 8 or 12, and so on.

In one embodiment, when CC1 and CC2 are both low, it means that the first connector 110 is not inserted into the second connector 210, that is, the inspection chip 100 is not inserted into the inspection board 200; When CC1 detects a high level and CC2 detects a low level, it indicates that the first connector 110 is being inserted into the second connector 210, that is, the inspection chip 100 is being inserted into the inspection board 200; CC2 detects a high level and CC1 detects a low level, indicating that the first connector 110 is inserted into the second connector 210 in the reverse direction, that is, the inspection chip 100 is inserted into the inspection board 200 in the reverse direction.

In one embodiment, the positions of the custom CC1 detection pins and CC2 detection pins are different from those of the standard protocol, which can prevent users from mistakenly plugging in the USB Type-C of the standard communication protocol, allowing the standard protocol and custom The interface will not conflict. In one embodiment, when the user is plugging in, OUT1-5 on the USB Type-C male connector and OUT1-5 on the USB Type-C female connector have a one-to-one correspondence, that is, OUT1 corresponds to OUT1 ; When the user reversely inserts, the corresponding relationship is reversed, that is, OUT1 corresponds to OUT5.

Referring to Figure 5, in one embodiment, each current channel in the USB Type-C female connector can be connected to an independent first diode (that is, D1-D5), and then share a second diode. The pole tube (ie D6) is connected to the ground, which can provide an overvoltage protection value of 1.6V. When the user accidentally connects the standard USB Type-C, the signal level higher than 1.6V will be clamped at 1.6V. To protect the MCU (that is, the microcontroller 220). The setting principle of the protection voltage value here is: normal signal voltage<protection voltage value<maximum withstand voltage of MCU input port. In one embodiment, when a higher protection voltage is required, other diodes can be connected in series after the second diode. The forward voltage drop of an ordinary switching diode (such as 1N4148) is 0.8V.

In one embodiment, the first connector 110 is a male lightning connector. The second connector 210 is a female lightning connector. In an embodiment, the function of the above-mentioned USB Type-C terminal can also be realized through the cooperation of the male lightning connector and the female lightning connector (ie, the Lightning terminal). In an embodiment, the specific structures of the first connector 110 and the second connector 210 can be selected according to actual needs.

In one embodiment, the first connector 110 and the second connector 210 communicate according to a second preset communication protocol. In an embodiment, the second preset communication protocol may be a standard protocol of lightning connector terminals (ie, Lightning terminals). In an embodiment, the second preset communication protocol may also be a customized communication protocol of the lightning connector terminal, as long as the communication between the first connector 110 and the second connector 210 can be realized. And it is sufficient to ensure that the lightning connector terminal adopting the standard protocol will not damage the detection board 200 when inserted into the second connector 210.

In an embodiment, the detection board 200 further includes a micro battery 400 and a voltage stabilization protection circuit 500. The micro battery 400 is electrically connected to the second connector 210 through the voltage stabilization protection circuit 500. In one embodiment, the micro battery 400 may be a button battery. In an embodiment, the micro battery 400 may also be a micro lithium battery or a micro alkaline battery or the like. The specific type of the micro battery 400 can be selected according to actual needs.

It can be understood that the specific structure of the voltage stabilization protection circuit 500 is not specifically limited, as long as it is ensured that the detection board 200 can be protected from damage when the input voltage at the second connector 210 is too large. In an embodiment, the voltage stabilization protection circuit 500 may be composed of a first voltage regulator, a resistor, and a switch tube with a unidirectional conduction function. In an embodiment, the voltage stabilization protection circuit 500 can also be constructed by a traditional voltage stabilization circuit and a switch tube with a unidirectional conduction function. The use of the voltage stabilization protection circuit 500 can protect the detection board 200 from damage when the input voltage at the second connector 210 is too large, and increase the service life of the detection board 200.

Referring to FIGS. 6 and 7, in one embodiment, the voltage stabilization protection circuit 500 includes a voltage regulator 510 and a current limiting component 520. The input terminal of the voltage regulator 510 is electrically connected to the micro battery 400. The first output terminal of the voltage regulator 510 is grounded. The input terminal of the current limiting component 520 is electrically connected to the second output terminal of the voltage regulator 510. The output end of the current limiting component 520 is electrically connected to the second connector 210.

It can be understood that the specific structure of the current limiting component 520 is not specifically limited, as long as it has current limiting and unidirectional conduction functions. The specific structure of the current limiting component 520 can be selected according to actual needs. In an embodiment, the current limiting component 520 may be composed of a sliding rheostat and a switch tube with a unidirectional conduction function. In one embodiment, the current-limiting component 520 may be composed of a fixed resistance resistor and a switch tube with a unidirectional conduction function.

In an embodiment, the current limiting component 520 includes a current limiting resistor 521 and a diode 522. One end of the current limiting resistor 521 is electrically connected to the second output end of the voltage stabilizer 510. The anode of the diode 522 is electrically connected to the other end of the current limiting resistor 521. The cathode of the diode 522 is electrically connected to the second connector 210.

In one embodiment, the micro battery 400 is powered by a 3V or 3.7V micro battery. The voltage of the micro battery 400 will drop continuously during the discharge process. In order to ensure the accuracy of the measurement, a 1.5V low dropout voltage regulator chip (ie, the voltage regulator 510) is used. When the voltage of the micro battery 400 drops until the power is exhausted, the voltage stabilizing chip can output a stable 1.5V voltage. After passing through the current-limiting resistor 521 and the diode 522, power is supplied to the detection chip 100 through the second connector 210.

The purpose of using the diode 522 is to use the unidirectional conductivity of the diode 522 to prevent the 5V voltage from being poured in and protect the detection board when the user mistakenly connects the USB Type-C terminal using the standard protocol. 200. The current limiting resistor 521 is used to limit the working current of the detection chip 100. Because the maximum current of each detection channel of the detection chip 100 can reach 1mA, the continuous working current that the micro battery 400 can support is 100uA, and the maximum range of the current channel of the MCU (ie the microcontroller 220) is 250uA Therefore, it is necessary to limit the current of the detection wafer 100 to be less than 250uA to ensure the safety of use.

In one embodiment, the micro battery 400 only supplies power to the detection chip 100, and does not supply power to the MCU (ie, the microcontroller 220), so the power consumption is extremely low when the detection chip 100 is not connected. In this way, the service life of the micro battery 400 can be increased.

An embodiment of the present application provides a saliva detection system, including a saliva detection device 10 and a host device 300. The saliva detection device 10 includes a detection chip 100, a first connector 110 and a detection board 200. The detection chip 100 is used to detect saliva to obtain saliva detection data. The first connector 110 is fixedly connected to the detection chip 100. The detection board 200 includes a second connector 210 and a microcontroller 220 that are plug-in connection with the first connector 110. The microcontroller 220 is electrically connected to the second connector 210. The microcontroller 220 is used to obtain the saliva detection data of the detection chip 100 and perform data interaction with the host device 300.

The application process is as follows:

First, put the part of the detection wafer 100 into the mouth and fully contact the saliva. Then let it stand for 1-5 minutes to allow the saliva to react with the chemicals on the test chip. Secondly, the test chip 100 is inserted into the second connector 210 in the test board 200 through the first connector 110, and the host device 300 (such as a mobile phone, NFC card reader, etc.) is used to paste Reading is performed on the NFC coil 231 (ie, the wireless communication device 230) of the detection board 200. The MCU (ie, the microcontroller 220) is activated and starts to work. After the MCU detects the current of each channel, it converts the concentration of the corresponding substance into the concentration of the corresponding substance, and then sends the concentration data to the host device 300 through the NFC coil 231. Finally, the host device 300 displays results, such as mobile phone APP data display, waveform display, etc., and stores the background database for long-term monitoring.

In summary, the present application adopts a separate design for the detection wafer 100 and the detection board 200, and through the cooperation of the first connector 110 and the second connector 210, the saliva can be Substance detection is not only easy to operate, but also can be used in any place, with the advantage of strong adaptability. At the same time, the present application has the advantages of small size, simple structure, convenient carrying and low cost.

Finally, it should also be noted that in this article, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply these entities Or there is any such actual relationship or order between operations. Moreover, the terms "include", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also those not explicitly listed Or other elements that are inherent to this process, method, article, or equipment. Without more restrictions, the element defined by the sentence "include one..." does not exclude that there are other identical elements in the process, method, article or equipment that includes the element.

The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the various embodiments can be referred to each other.

The above description of the disclosed embodiments enables those skilled in the art to implement or use this application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown in this document, but should conform to the widest scope consistent with the principles and novel features disclosed in this document.

Claims

A saliva detection device, characterized by comprising:

Detection chip, used to detect saliva to obtain saliva detection data;

The first connector is fixedly connected to the detection chip;

A detection board, which includes a second connector and a microcontroller that are plug-in-connected with the first connector; wherein,

The microcontroller is electrically connected to the second connector, and is used to obtain the saliva detection data.
The saliva detection device according to claim 1, wherein the first connector is a USB Type-C male connector; the second connector is a USB Type-C female connector.
The saliva detection device according to claim 2, wherein the first connector and the second connector communicate according to a first preset communication protocol.
The saliva detection device according to claim 1, wherein the first connector is a male lightning connector; and the second connector is a female lightning connector.
The saliva detection device according to claim 4, wherein the first connector and the second connector communicate according to a second preset communication protocol.
The saliva detection device according to claim 1, wherein the detection board further comprises:

A wireless communication device, where the microcontroller performs data interaction with a host device through the wireless communication device.
The saliva detection device according to claim 1, wherein the detection board further comprises:

Micro battery

A voltage stabilization protection circuit, the micro battery is electrically connected to the second connector through the voltage stabilization protection circuit.
The saliva detection device according to claim 7, wherein the voltage stabilization protection circuit comprises:

A voltage stabilizer, the input end of the voltage stabilizer is electrically connected to the micro battery, and the first output end of the voltage stabilizer is grounded;

A current-limiting component, the input end of the current-limiting component is electrically connected to the second output end of the voltage regulator, and the output end of the current-limiting component is electrically connected to the second connector.
The saliva detection device according to claim 8, wherein the flow limiting component comprises:

A current-limiting resistor, one end of the current-limiting resistor is electrically connected to the second output terminal of the voltage regulator;

A diode, the anode of the diode is electrically connected to the other end of the current limiting resistor, and the cathode of the diode is electrically connected to the second connector.
The saliva detection device according to claim 1, wherein the second connector comprises:

The first detection pin is grounded through the first resistor and used to detect the level of the first on-voltage of the first resistor;

The second detection pin is grounded through the second resistor and used to detect the level of the second conduction voltage of the second resistor.
The saliva detection device according to claim 10, wherein the microcontroller is configured to determine whether the first connector is connected to the first on-voltage and the second on-voltage. The insertion direction between the second connectors is forward insertion or reverse insertion;

If the first turn-on voltage is at a high level and the second turn-on voltage is at a low level, the first connector and the second connector are inserted in the forward direction;

If the first turn-on voltage is at a low level and the second turn-on voltage is at a high level, the first connector and the second connector are reversely inserted.
The saliva detection device according to claim 11, wherein the microcontroller is further configured to determine the first connection according to the level of the first conduction voltage and the second conduction voltage Whether the connector is inserted into the second connector;

If the first turn-on voltage and the second turn-on voltage are both at a low level, the first connector is not connected to the second connector.
The saliva detection device according to claim 1, wherein the detection chip is a nano sensor.
A saliva detection device, which includes:

Detection chip, used to detect saliva to obtain saliva detection data;

The first connector is fixedly connected to the detection chip;

A detection board, the detection board includes a second connector plug-in connection with the first connector, a microcontroller and a wireless communication device; wherein,

The second connector includes a first detection pin and a second detection pin. The first detection pin is grounded through a first resistor and is used to detect the level of the first conduction voltage of the first resistor , The second detection pin is grounded through a second resistor, and is used to detect the level of the second conduction voltage of the second resistor;

The microcontroller is electrically connected to the second connector, and is configured to determine whether the first connector is connected to the second connector according to the level of the first conduction voltage and the second conduction voltage. For the insertion direction between the two connectors, the microcontroller is also used to obtain the saliva detection data, and perform data interaction with the host device through the wireless communication device.
The saliva detection device according to claim 14, wherein the first connector is a USB Type-C male connector; and the second connector is a USB Type-C female connector.
The saliva detection device according to claim 15, wherein the first connector and the second connector communicate according to a first preset communication protocol.
The saliva detection device according to claim 14, wherein the first connector is a male lightning connector; and the second connector is a female lightning connector.
The saliva detection device according to claim 17, wherein the first connector and the second connector communicate according to a second preset communication protocol.
A saliva detection system, which includes a saliva detection device and a host device; wherein, the saliva detection device includes:

Detection chip, used to detect saliva to obtain saliva detection data;

The first connector is fixedly connected to the detection chip;

A detection board, the detection board comprising a second connector and a microcontroller that are plug-in connection with the first connector; and,

The microcontroller is electrically connected to the second connector, and is used to obtain the saliva detection data and perform data interaction with the host device.
The saliva detection system according to claim 19, wherein the second connector comprises a first detection pin and a second detection pin, and the first detection pin is grounded through a first resistor and used for detecting The level of the first turn-on voltage of the first resistor;

The second detection pin is grounded through a second resistor, and is used to detect the level of the second conduction voltage of the second resistor;

The microcontroller is electrically connected to the second connector, and is configured to determine whether the first connector is connected to the second connector according to the level of the first conduction voltage and the second conduction voltage. The direction of insertion between the two connectors.