CN219997091U

CN219997091U - Alcohol detector with Bluetooth

Info

Publication number: CN219997091U
Application number: CN202321700907.XU
Authority: CN
Inventors: 韦挺; 黄新吉; 张宇; 徐良
Original assignee: Shenzhen Derk Iot Technology Co ltd
Current assignee: Shenzhen Derk Iot Technology Co ltd
Priority date: 2023-06-30
Filing date: 2023-06-30
Publication date: 2023-11-10
Anticipated expiration: 2033-06-30

Abstract

The utility model relates to the field of alcohol detection and discloses an alcohol detector with Bluetooth, which comprises a single-chip microcomputer MCU, a Bluetooth module, a semiconductor alcohol sensor circuit and a display module, wherein the Bluetooth module is electrically connected with the single-chip microcomputer MCU; the semiconductor alcohol sensor circuit comprises a capacitor C19 electrically connected with a VBAT pin of the MCU, a semiconductor sensor U5 electrically connected with the capacitor C19, a triode Q2 electrically connected with the semiconductor sensor U5, a triode Q5 electrically connected with the semiconductor sensor U5, a resistor R7 electrically connected with the semiconductor sensor U5 and a capacitor C4 electrically connected with the semiconductor sensor U5.

Description

Alcohol detector with Bluetooth

Technical Field

The utility model relates to the technical field of alcohol detection, in particular to an alcohol detector with Bluetooth.

Background

The alcohol detector is a tool for detecting the drinking situation of a driver when the traffic police enforces law, and the traffic police can effectively reduce the occurrence of traffic accidents by using the alcohol detector.

At present, the existing alcohol tester can only bind test data with tester data, so that the existence of a real normal alcohol content test by a tester cannot be known on limited resources.

The existing alcohol tester cannot detect whether the data uploaded during alcohol testing is false blowing or not, and cannot achieve the effect of preventing false blowing.

Disclosure of Invention

The utility model aims to provide an alcohol detector with Bluetooth, which aims to solve the problems in the prior art.

In a first aspect, the utility model provides an alcohol detector with Bluetooth, which comprises a single-chip microcomputer MCU, a Bluetooth module, a semiconductor alcohol sensor circuit and a display module, wherein the Bluetooth module is electrically connected with the single-chip microcomputer MCU, the semiconductor alcohol sensor circuit is electrically connected with the single-chip microcomputer MCU, the display module is electrically connected with the single-chip microcomputer MCU, and the Bluetooth module is used for being in communication connection with a terminal; the semiconductor alcohol sensor circuit comprises a capacitor C19 electrically connected with a VBAT pin of the MCU, a semiconductor sensor U5 electrically connected with the capacitor C19, a triode Q2 electrically connected with the semiconductor sensor U5, a triode Q5 electrically connected with the semiconductor sensor U5, a resistor R7 electrically connected with the semiconductor sensor U5 and a capacitor C4 electrically connected with the semiconductor sensor U5, wherein the triode Q2 is electrically connected with a GPIO26 pin of the MCU, the triode Q5 is electrically connected with a GPIO25 pin of the MCU, and the semiconductor sensor U5 is electrically connected with a GPIO 07 pin of the MCU.

Further, the semiconductor sensor U5 is of the type MIX3003.

Further, the transistor Q2, the transistor Q5, the resistor R7, and the capacitor C4 are all grounded.

Further, the display module comprises a display chip U3, a DIN pin of the display chip U3 is electrically connected with a GPIO22 pin of the MCU, and a SCLK pin of the display chip U3 is electrically connected with a GPIO23 pin of the MCU.

Further, the model of the display chip U3 is TM1640.

Compared with the prior art, the alcohol detector with the Bluetooth has the advantages that due to the characteristics of the semiconductor alcohol sensor, the detected value can be temporarily reduced when the air is blown from the air inlet, whether the air is blown or not can be judged through the characteristics, so that the function of preventing false blowing can be realized only by the semiconductor alcohol sensor, the Bluetooth module can transmit detection result data to the terminal, and the display module can display the detection result data.

Drawings

Fig. 1 is a circuit diagram of a single chip microcomputer MCU provided by an embodiment of the present utility model;

FIG. 2 is a circuit diagram of a semiconductor alcohol sensor circuit provided by an embodiment of the present utility model;

fig. 3 is a circuit diagram of a display module according to an embodiment of the utility model.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

The implementation of the present utility model will be described in detail below with reference to specific embodiments.

Referring to fig. 1-3, the utility model provides an alcohol detector with bluetooth, which comprises a single-chip microcomputer MCU, a bluetooth module, a semiconductor alcohol sensor circuit and a display module, wherein the bluetooth module is electrically connected with the single-chip microcomputer MCU, the semiconductor alcohol sensor circuit is electrically connected with the single-chip microcomputer MCU, the display module is electrically connected with the single-chip microcomputer MCU, and the bluetooth module is used for being in communication connection with a terminal; the semiconductor alcohol sensor circuit comprises a capacitor C19 electrically connected with a VBAT pin of the MCU, a semiconductor sensor U5 electrically connected with the capacitor C19, a triode Q2 electrically connected with the semiconductor sensor U5, a triode Q5 electrically connected with the semiconductor sensor U5, a resistor R7 electrically connected with the semiconductor sensor U5, a capacitor C4 electrically connected with the semiconductor sensor U5, the triode Q2 is electrically connected with a GPIO26 pin of the MCU, the triode Q5 is electrically connected with a GPIO25 pin of the MCU, and the semiconductor sensor U5 is electrically connected with a GPIO 07 pin of the MCU.

According to the alcohol detector with Bluetooth, due to the characteristics of the semiconductor alcohol sensor, the detected value can be temporarily reduced when the air is blown from the air inlet, whether the air is blown or not can be judged through the characteristics, so that the function of preventing false blowing can be realized only by the semiconductor alcohol sensor, the Bluetooth module can transmit detection result data to the terminal, and the display module can display the detection result data.

Specifically, the semiconductor sensor U5 is of the type MIX3003.

Specifically, the transistor Q2, the transistor Q5, the resistor R7, and the capacitor C4 are all grounded.

As a specific implementation mode, the display module comprises a display chip U3, wherein a DIN pin of the display chip U3 is electrically connected with a GPIO22 pin of the MCU, and a SCLK pin of the display chip U3 is electrically connected with a GPIO23 pin of the MCU.

Specifically, the model of the display chip U3 is TM1640.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims

1. The alcohol detector with the Bluetooth is characterized by comprising a single chip microcomputer MCU, a Bluetooth module, a semiconductor alcohol sensor circuit and a display module, wherein the Bluetooth module is electrically connected with the single chip microcomputer MCU, the semiconductor alcohol sensor circuit is electrically connected with the single chip microcomputer MCU, the display module is electrically connected with the single chip microcomputer MCU, and the Bluetooth module is used for being in communication connection with a terminal; the semiconductor alcohol sensor circuit comprises a capacitor C19 electrically connected with a VBAT pin of the MCU, a semiconductor sensor U5 electrically connected with the capacitor C19, a triode Q2 electrically connected with the semiconductor sensor U5, a triode Q5 electrically connected with the semiconductor sensor U5, a resistor R7 electrically connected with the semiconductor sensor U5 and a capacitor C4 electrically connected with the semiconductor sensor U5, wherein the triode Q2 is electrically connected with a GPIO26 pin of the MCU, the triode Q5 is electrically connected with a GPIO25 pin of the MCU, and the semiconductor sensor U5 is electrically connected with a GPIO 07 pin of the MCU.

2. The alcohol tester with bluetooth according to claim 1, wherein the semiconductor sensor U5 is of the type MIX3003.

3. The alcohol tester with bluetooth according to claim 1, wherein the transistor Q2, the transistor Q5, the resistor R7 and the capacitor C4 are all grounded.

4. The alcohol detector with Bluetooth according to claim 1, wherein the display module comprises a display chip U3, a DIN pin of the display chip U3 is electrically connected with a GPIO22 pin of the MCU, and a SCLK pin of the display chip U3 is electrically connected with a GPIO23 pin of the MCU.

5. The alcohol tester with bluetooth according to claim 4, wherein the display chip U3 has a model TM1640.