Temperature and humidity acquisition device based on NB-IoT

Abstract

The utility model belongs to the technical field of temperature and humidity monitoring equipment, and particularly relates to a temperature and humidity acquisition device based on NB-IoT. The front shell is clamped with the rear cover; the front shell comprises a display screen and a main cavity; the circuit board is installed in the main cavity, the circuit board is provided with a temperature and humidity sensing chip, an NB-I oT communication module, a first DC power supply interface and a second DC power supply interface, when the first DC power supply interface is used for inputting power supply, the second DC power supply interface is used for outputting power supply, and when the NB-I oT communication module is used for outputting power supply, the NB-I oT communication module is used for receiving the NB-I oT communication module; the NB-I oT communication module can store temperature and humidity information acquired by the temperature and humidity sensing chip and upload the temperature and humidity information to an Internet of Things platform which is connected with the NB-I oT communication module based on a narrowband Internet of Things communication mode, and the temperature and humidity information is displayed through the display screen. The same power supply can be output and input from the second DC interface, and the power supply mode enables the device to be flexibly used in various scenes.

Description

Technical Field

[0001] This utility model belongs to the technical field of temperature and humidity monitoring equipment, specifically relating to a temperature and humidity acquisition device based on NB-IoT. Background Technology

[0002] During the current winter heating season in northern China, there are a large number of heating users and the coverage is very wide. Different heating environments have different pipeline construction cycles and a shortage of heating maintenance personnel in residential areas.

[0003] Indoor temperature and humidity monitoring, as well as the construction of a big data platform for indoor temperature and humidity, have become an indispensable part of ensuring heating supply for heating companies.

[0004] Existing indoor temperature and humidity monitoring devices fall into two categories: one uses 2G / 3G / 4G networks to transmit data, which can be placed in the user's home and simply plugged in to transmit data, but the communication module is expensive and requires long-term data charges; the other uses WIFI communication, which can reduce costs, but requires obtaining the user's home's WiFi information during on-site installation, making the installation process complicated, and the existing devices cannot display the collected data. In addition, existing temperature and humidity monitoring devices cannot provide power when there are not enough external power outlets. Utility Model Content

[0005] The purpose of this invention is to provide an NB-IoT-based temperature and humidity acquisition device that can collect, upload, and display indoor temperature and humidity data in real time. Through the NB-IoT communication module and display screen on the circuit board, it can automatically and periodically collect, upload, and display data.

[0006] This utility model discloses a temperature and humidity acquisition device based on NB-IoT, comprising:

[0007] Back cover;

[0008] The front cover snaps into the rear cover;

[0009] The front housing includes the display screen and the main cavity;

[0010] The circuit board is installed inside the main cavity. The circuit board is equipped with a temperature and humidity sensing chip, an NB-IoT communication module, a first DC power supply interface and a second DC power supply interface. When the first DC power supply interface is used for input power supply, the second DC power supply interface is used for output power supply. The NB-IoT communication module can store the temperature and humidity information acquired by the temperature and humidity sensing chip and upload it to the IoT platform connected to the NB-IoT communication module based on narrowband IoT communication, and display it through the display screen.

[0011] In some embodiments of this application, the display screen is an LCD segment display.

[0012] In some embodiments of this application, a backlight panel is installed on the back of the LCD segment display, and the LCD segment display is electrically connected to the circuit board via conductive adhesive strips.

[0013] In some embodiments of this application, the front housing also includes six identically shaped clips and two mounting screws.

[0014] In some embodiments of this application, the back cover is provided with heat dissipation holes.

[0015] In some embodiments of this application, a support is also provided on the back of the back cover.

[0016] In some embodiments of this application, the back cover is also provided with a storage groove for storing the bracket.

[0017] In some embodiments of this application, the back cover is also provided with a groove for attaching a product information label.

[0018] In some embodiments of this application, the circuit board also includes: a Type-C power supply interface, a 12 / 24h switching button, a touch sensing chip, and an LCD driver chip.

[0019] In some embodiments of this application, a touch button is provided on the top of the back cover, which is electrically connected to the touch sensing chip via a wire.

[0020] The beneficial effects of this application are:

[0021] 1. After being powered by the first DC interface, this utility model can output the same power as the input from the second DC interface. When there is no spare power at the device site, the power of the router or optical modem can be used. After plugging the device in, the original device can be powered through the DC extension cable. This power supply method allows this application to be used flexibly in a variety of scenarios. When the number of additional power sockets is insufficient, it can share a power port with the existing device.

[0022] 2. This utility model adopts NB-IoT communication technology. Within the coverage area of ​​the cellular network, it can automatically collect, store and upload data to the IoT platform after power is supplied, and display the collection results. No data traffic fees are required, and no reliance on the user's home WiFi network is required for data transmission, which greatly saves the cost of use. Attached Figure Description

[0023] Figure 1 This is a front-view axonometric drawing of a temperature and humidity acquisition device based on NB-IoT according to this utility model;

[0024] Figure 2This is a rear-view axonometric drawing of a temperature and humidity acquisition device based on NB-IoT according to this utility model;

[0025] Figure 3 This is an axonometric view of the assembly side of a temperature and humidity acquisition device based on NB-IoT according to this utility model.

[0026] Figure 4 This is an exploded view of the structure of a temperature and humidity acquisition device based on NB-IoT according to this utility model;

[0027] Figure 5 This is a schematic diagram of the circuit board of a temperature and humidity acquisition device based on NB-IoT according to this utility model;

[0028] Reference numerals: 1. Front shell; 2. Back cover; 3. Bracket; 4. Display screen; 5. Backlight panel; 6. Circuit board; 7. Conductive adhesive strip; 101. Buckle; 201. Backlight indicator; 202. Heat dissipation hole; 203. Reset hole; 204. DC interface slot; 205. Type-C slot; 206. Recessed part; 207. Storage slot; 301. Rotating part; 601. Temperature and humidity sensor chip; 602. LCD driver chip; 603. NB-IoT communication module; 604. Touch sensor chip; 605. 12 / 24h switching button; 606. DC power supply interface; 607. Type-C power supply interface. Detailed Implementation

[0029] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, without conflict, the embodiments and features in the embodiments of the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0030] like Figure 1 As shown, this embodiment discloses a temperature and humidity acquisition device based on NB-IoT, including:

[0031] Back cover 2;

[0032] The front cover 1 is snapped together with the rear cover 2;

[0033] The front shell 1 includes a display screen 4 and a main cavity;

[0034] Circuit board 6, such as Figure 5As shown, the circuit board 6, installed inside the main cavity, is equipped with a temperature and humidity sensing chip, an NB-IoT communication module 603, a first DC power supply interface 606, and a second DC power supply interface 606. When the first DC power supply interface 606 is used for input power, the second DC power supply interface 606 is used for output power. The NB-IoT communication module 603 can store the temperature and humidity information acquired by the temperature and humidity sensing chip and upload it to the IoT platform connected to the NB-IoT communication module 603 based on narrowband IoT communication, and display it through the display screen 4.

[0035] Specifically, Narrowband Internet of Things (NB-IoT) is built on cellular networks, consuming only about 180kHz of bandwidth. It supports low-power devices for cellular data connections in wide area networks and enables efficient connections for devices with long standby times and high network connectivity requirements.

[0036] Furthermore, the NB-IoT communication module 603 can periodically initiate data collection from the temperature and humidity sensing chip according to the configured collection interval and upload the collected data to the IoT platform. During the upload process, if the NB-IoT communication module 603 encounters poor signal or unstable network communication, it will perform a three-retry mechanism based on the timing device. After each failure, it will delay for 10 minutes before retrying. If all three attempts fail, the collected data information will be stored in the storage unit of the NB-IoT communication module 603. After the next collection time point arrives, the stored data will be re-uploaded to the IoT platform. If the collected data is unable to be uploaded for a long time, all data will be saved in the storage unit of the NB-IoT communication module 603, which can store up to 48 collected temperature and humidity data.

[0037] In applications, the IoT platform could be the China Telecom IoT platform.

[0038] In some embodiments of this application, the display screen 4 is an LCD segment display.

[0039] Specifically, the LCD segment display and the circuit board 6 are electrically connected via conductive adhesive strips. The LCD segment display can transmit the content to be displayed by the NB-IoT communication module 603 to the LCD driver chip for final display on the screen.

[0040] In some embodiments of this application, a backlight panel 5 is mounted on the back of the LCD segment display, such as... Figure 3 , Figure 4 As shown, the LCD segment code screen is electrically connected to the circuit board 6 via conductive adhesive strips.

[0041] In some embodiments of this application, such as Figure 5As shown, in order to further reinforce the body of the temperature and humidity acquisition device, the front shell 1 also includes six identical buckles 101 and two mounting screws.

[0042] In some embodiments of this application, such as Figure 2 As shown, the back cover 2 has heat dissipation holes 202.

[0043] Specifically, the heat dissipation holes 202 dissipate heat and ensure air circulation. The large number of heat dissipation holes 202 can release the heat generated by the components on the circuit board 6, while also ensuring that the temperature and humidity measured by the temperature and humidity sensing chip are the true temperature and humidity around the device.

[0044] In some embodiments of this application, the back cover 2 is also provided with a bracket 3.

[0045] Specifically, the bracket 3 can be disassembled or stored. After rotating and folding, the bracket 3 can be placed into the storage slot 207.

[0046] In some embodiments of this application, the back cover 2 is also provided with a storage groove 207 for storing the bracket 3.

[0047] In some embodiments of this application, the back cover 2 is also provided with a groove 206 for attaching a product information label.

[0048] Specifically, placing the label inside the recessed frame can prevent wear and tear. The product information label contains the device number, which is the unique identifier for communication between the device and the IoT platform. In addition, the product information label also contains a QR code with the device number and a link to the network configuration mini-program, making it convenient for users to quickly scan the code to obtain device information.

[0049] In some embodiments of this application, such as Figure 5 As shown, circuit board 6 also includes: a Type-C power supply interface 607, a 12 / 24h switching button 605, a touch sensing chip 604, and an LCD driver chip 602.

[0050] In some embodiments of this application, such as Figure 2 As shown, the top of the back cover 2 has a touch button, which is electrically connected to the touch sensing chip via a wire.

[0051] Specifically, there is a light bulb-shaped touch button on the top of the back cover 2. When touched by a finger, the signal is transmitted to the touch sensing chip via a connecting wire, and the sensing signal is represented by high and low levels on the corresponding output port. When the NB-IoT communication module 603 detects a touch signal, it will light up the backlight 5 for 5 seconds.

[0052] The beneficial effects of this application are:

[0053] 1. After being powered by the first DC interface, this utility model can output the same power as the input from the second DC interface. When there is no spare power at the device site, the power of the router or optical modem can be used. After plugging the device in, the original device can be powered through the DC extension cable. This power supply method allows this application to be used flexibly in a variety of scenarios. When the number of additional power sockets is insufficient, it can share a power port with the existing device.

[0054] 2. This utility model adopts NB-IoT communication technology. Within the coverage area of ​​the cellular network, it can automatically collect, store and upload data to the IoT platform after power is supplied, and display the collection results. No data traffic fees are required, and no reliance on the user's home WiFi network is required for data transmission, which greatly saves the cost of use.

[0055] The working principle of this embodiment can be:

[0056] After the user powers the device of this utility model, for example, by using the first DC power supply interface to power the device and the second DC power supply interface for external power supply, the NB-IoT communication module 603 initiates data acquisition of the temperature and humidity sensor chip at regular intervals according to the configured acquisition time interval, and uploads the acquired data to the Internet of Things platform. The circuit board 6 is connected to the LCD segment screen through conductive adhesive strips. The LCD segment screen sends the content to be displayed by the NB-IoT communication module 603 to the LCD driver chip, and finally displays it on the LCD segment screen.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of this utility model. Any modifications or equivalent substitutions that do not depart from the spirit and scope of this utility model should be covered within the protection scope of the claims of this utility model.

Claims

1. A temperature and humidity acquisition device based on NB-IoT, characterized in that, include: Back cover; The front cover snaps into the rear cover; The front housing includes a display screen and a main cavity; A circuit board is installed inside the main cavity. The circuit board is equipped with a temperature and humidity sensing chip, an NB-IoT communication module, a first DC power supply interface, and a second DC power supply interface. When the first DC power supply interface is used for input power supply, the second DC power supply interface is used for output power supply. The NB-IoT communication module can store the temperature and humidity information acquired by the temperature and humidity sensing chip and upload it to an IoT platform connected to the NB-IoT communication module based on narrowband IoT communication, and display it through the display screen.

2. The temperature and humidity acquisition device based on NB-IoT according to claim 1, characterized in that, The display screen is an LCD segment display.

3. The temperature and humidity acquisition device based on NB-IoT according to claim 2, characterized in that, The LCD segment code screen has a backlight panel installed on its back, and the LCD segment code screen is electrically connected to the circuit board via conductive adhesive strips.

4. The temperature and humidity acquisition device based on NB-IoT according to claim 1, characterized in that, The front housing also includes six identical clips and two mounting screws.

5. The temperature and humidity acquisition device based on NB-IoT according to claim 1, characterized in that, The rear cover is provided with heat dissipation holes.

6. A temperature and humidity acquisition device based on NB-IoT according to claim 5, characterized in that, The back cover also has a support.

7. A temperature and humidity acquisition device based on NB-IoT according to claim 6, characterized in that, The back cover also has a storage slot for storing the bracket.

8. A temperature and humidity acquisition device based on NB-IoT according to claim 7, characterized in that, The back cover also has a groove for attaching product information label plates.

9. A temperature and humidity acquisition device based on NB-IoT according to claim 1, characterized in that, The circuit board also includes: a Type-C power supply interface, a 12 / 24h switching button, a touch sensing chip, and an LCD driver chip.

10. A temperature and humidity acquisition device based on NB-IoT according to claim 9, characterized in that, The top of the back cover is equipped with a touch button, which is electrically connected to the touch sensing chip via a wire.

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