CN212340303U

CN212340303U - USB portable air detection electronic device

Info

Publication number: CN212340303U
Application number: CN202020911400.9U
Authority: CN
Inventors: 韦挺; 黄新吉; 徐良
Original assignee: Shenzhen Derk Iot Technology Co ltd
Current assignee: Shenzhen Derk Iot Technology Co ltd
Priority date: 2020-05-26
Filing date: 2020-05-26
Publication date: 2021-01-12
Anticipated expiration: 2030-05-26

Abstract

The utility model relates to an empty gas detection surveys technical field, in particular to portable empty gas detection surveys electron device of USB, which comprises a housin, be equipped with MCU controller, gas sensor, temperature sensor, bee calling organ, pilot lamp, power management module and communication circuit in the casing, the MCU controller is connected with gas sensor, temperature sensor, bee calling organ, pilot lamp, power management module and communication circuit respectively, communication circuit and power management module are connected with the connector, connector and equipment end connection. The device can upgrade the firmware version of the equipment at any time, and can also take electricity from the terminal equipment without a battery; meanwhile, the device does not need a display screen, reduces the volume and power consumption of the equipment, and can make the equipment small and exquisite and portable.

Description

USB portable air detection electronic device

Technical Field

The utility model relates to an empty gas detection surveys technical field, in particular to portable empty gas detection surveys electron device of USB.

Background

The existing air quality monitor mainly comprises a gas sensor, a temperature and humidity sensor, a main control chip, a screen display, a battery, a buzzer, a key and the like; the realization principle is as follows: the main control chip collects signal data of volatile gas in the air through a gas sensor, and collects temperature and humidity signals in the air through a temperature and humidity sensor; after the signal data are processed by the main control chip, the main control chip drives the screen to display the data, so that a user can watch the current air quality parameters in real time.

However, the existing air quality monitor uses a screen to display data, which causes the defect of 1, the whole power consumption of the equipment is increased, the battery consumption is fast, and the equipment needs to be charged frequently; defect 2, the use of a screen and a large battery leads to a large volume, which cannot be made small and exquisite and is inconvenient to carry; defect 3, higher equipment cost; 4, a product with a battery has a safety risk of leakage and bag frying of the battery under pressure in a slightly severe environment or in transportation; and 5, the product cannot be upgraded on line.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned defect of prior art, the utility model provides a portable empty gas detection of USB surveys electron device has solved the above-mentioned technical problem.

The utility model provides a technical scheme that problem among the prior art adopted does: the utility model provides a portable empty gas detection of USB surveys electron device, includes the casing, be equipped with MCU controller, gas sensor, temperature sensor, bee calling organ, pilot lamp, power management module and communication circuit in the casing, the MCU controller is connected with gas sensor, temperature sensor, bee calling organ, pilot lamp, power management module and communication circuit respectively, communication circuit and power management module are connected with the connector, the connector is connected with equipment terminal.

As the preferred proposal of the utility model, the shell is also provided with a plurality of vent holes.

As the preferred scheme of the utility model, the connector includes type-C interface connector, microUSB interface connector or Lighting interface connector.

As the preferred scheme of the utility model, equipment terminal includes cell-phone, panel, computer or other electronic equipment.

As the preferred scheme of the utility model, the MCU controller adopts ARM cortiex-M kernel chip.

As the preferred scheme of the utility model, gas sensor is MEMS VOC gas sensor.

Compared with the prior art, the utility model discloses following technological effect has:

the utility model relates to a USB portable air detection electronic device, which is inserted into terminal equipment through a communication circuit to realize communication connection, can be matched with APP to upgrade firmware version at any time, and can also get electricity from the terminal equipment; meanwhile, the device does not need a display screen, reduces the volume and power consumption of the equipment, can make the equipment small and exquisite and portable, and uses the screen of a mobile phone as a display unit, so that UI (user interface) is richer and more flexible.

Drawings

FIG. 1 is a schematic block diagram of a USB portable air detection electronic device according to the present invention;

FIG. 2 is a block diagram of a USB portable air detection electronic device according to the present invention;

FIG. 3 is a schematic circuit diagram of an MCU controller in a USB portable air detection electronic device according to the present invention;

FIG. 4 is a schematic circuit diagram of a communication circuit in the USB portable air detection electronic device of the present invention;

FIG. 5 is a schematic circuit diagram of a circuit management module in a USB portable air detection electronic device according to the present invention;

FIG. 6 is a schematic circuit diagram of a gas sensor in a USB portable air detection electronic device according to the present invention;

FIG. 7 is a schematic circuit diagram of a temperature sensor in a USB portable air detection electronic device according to the present invention;

fig. 8 is a schematic circuit diagram of a buzzer in the USB portable air detection electronic device according to the present invention;

fig. 9 is a schematic circuit diagram of an indicator light in a USB portable air detection electronic device according to the present invention.

Reference numbers in the figures: 1. an MCU controller; 2. a communication circuit; 3. a power management module; 4. a gas sensor; 5. a temperature sensor; 6. a buzzer; 7. an indicator light; 8. a connector; 9. a terminal device; 10. a vent; 11. a housing.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

As shown in figure 1: the utility model provides a portable empty gas detection of USB surveys electron device, includes casing 11, be equipped with MCU controller 1, gas sensor 4, temperature sensor 5, bee calling organ 6, pilot lamp 7, power management module 3 and communication circuit 2 in the casing 11, MCU controller 1 is connected with gas sensor 4, temperature sensor 5, bee calling organ 6, pilot lamp 7, power management module 3 and communication circuit 2 respectively, communication circuit 2 and power management module 3 are connected with connector 8, connector 8 and equipment terminal connection.

As shown in fig. 2, preferably, a plurality of air vents 10 are further provided on the housing 11, and the air vents 10 are used for the ingress and egress of the outside air, so that the gas sensor 4 can detect the real-time air quality.

As shown in fig. 3, the MCU controller 1 adopts an ARM core-M core chip, the MCU controller 1 serves as a main control unit MCU, which is a core control processing unit of the device, including communication peripheral interfaces such as USB, UART, IIC, GPIO, etc., and is responsible for overall arrangement of functions of each part; processing the sensor data, interacting with the terminal device 9, etc.

As shown in fig. 4, the communication circuit 2 is connected to the MCU controller 1 through the USBDP port and the USBDM port, and the communication circuit 2 is further connected to the connector 8 through the VBUS port, and specifically, the connector 8 includes a type-C interface connector 8, a microUSB interface connector 8 or a Lighting interface connector 8.

As shown in the circuit management module circuit of fig. 5, a USB power-taking IC LDO is adopted to take power from a USB port of a mobile phone or a tablet and convert the power into 3.3V to supply power for other components.

As shown in fig. 6, preferably, the gas sensor 4 is a MEMS VOC gas sensor 4, the gas sensor 4 is connected to the MCU controller 1 through an IIC interface, and the gas sensor 4 can directly detect the content of volatile organic pollutants such as aldehydes, benzenes, hydrocarbons, ketones, alcohols, and smoke in the air, convert the volatile organic pollutants into digital signals, and transmit the digital signals to the MCU air system through the IIC interface for operation.

As shown in fig. 7, the temperature sensor 5 is provided with an MEMS semiconductor capacitive humidity sensing element and a standard on-chip temperature sensing element inside, and the temperature sensor 5 is connected with the MCU controller 1 through an IIC interface; the temperature and humidity sensor can directly detect temperature and relative humidity parameters and transmit the temperature and humidity parameters to the MCU for operation processing through the IIC port in the form of digital signals.

As shown in the circuit of the buzzer 6 shown in fig. 8, the buzzer 6 can emit a buzzing sound, and when the data detected by the detection device exceeds the standard, the buzzing sound is used as a reminding mode of the device.

As shown in the circuit of the indicator light 7 shown in fig. 9, the indicator light 7 adopts LED lamp beads with different colors, and the air quality grade detected by the detection device correspondingly displays the LED lamps with different colors, and exists as a prompt mode.

Preferably, the device terminal includes a mobile phone, a tablet, a computer, or other electronic devices, and in this embodiment, the mobile phone is taken as an example:

firstly, installing a corresponding APP on the mobile phone, and inserting the detection device into the mobile phone through the connector 8; the device is started by taking power through the USB, and the MCU controller 1, the gas sensor 4 and the temperature sensor 5 start to work and preheat. Opening a corresponding APP, and connecting the APP with the detection device through the communication circuit 2 to establish data communication; MCU controller 1 passes through the IIC port and follows gas sensor 4, temperature sensor 5 data collection and through the operation processing, sends the data that correspond at present to APP, and APP collects data display and saves the record.

the utility model relates to a USB portable air detection electronic device, which is inserted into a terminal device 9 through a communication circuit 2 to realize communication connection, can be matched with APP to upgrade the firmware version at any time, and can also get electricity from the terminal device 9; meanwhile, the device does not need a display screen, reduces the volume and power consumption of the equipment, can make the equipment small and exquisite and portable, and uses the screen of a mobile phone as a display unit, so that UI (user interface) is richer and more flexible.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a portable empty gas detection of USB surveys electron device, a serial communication port, includes the casing, be equipped with MCU controller, gas sensor, temperature sensor, bee calling organ, pilot lamp, power management module and communication circuit in the casing, the MCU controller is connected with gas sensor, temperature sensor, bee calling organ, pilot lamp, power management module and communication circuit respectively, communication circuit and power management module are connected with the connector, the connector is connected with equipment terminal.

2. The USB portable air detection electronic device according to claim 1, wherein: the shell is also provided with a plurality of air vents.

3. The USB portable air detection electronic device according to claim 1, wherein: the connector comprises a type-C interface connector, a microUSB interface connector or a Lighting interface connector.

4. The USB portable air detection electronic device according to claim 1, wherein: the equipment terminal comprises a mobile phone, a tablet or a computer.

5. The USB portable air detection electronic device according to claim 1, wherein: the MCU controller adopts an ARM core-M core chip.

6. The USB portable air detection electronic device according to claim 1, wherein: the gas sensor is a MEMS VOC gas sensor.