CN210295490U - NB-IoT training experiment box - Google Patents
NB-IoT training experiment box Download PDFInfo
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- CN210295490U CN210295490U CN201920885111.3U CN201920885111U CN210295490U CN 210295490 U CN210295490 U CN 210295490U CN 201920885111 U CN201920885111 U CN 201920885111U CN 210295490 U CN210295490 U CN 210295490U
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Abstract
The utility model provides a NB-IoT training experiment box, including the experiment box and set up NB-IoT local server, at least two NB-IoT nodes and sensor development external member in the experiment box, the sensor development external member is used for detecting data, NB-IoT node is used for connecting with sensor development external member and gathers detection data, NB-IoT inter-node interconnect is used for forming the cellular network, NB-IoT local server is used for connecting with at least one NB-IoT node and obtains the data of gathering of all NB-IoT nodes in the cellular network. Through connecting each above-mentioned real subassembly of instructing and loading corresponding configuration file, can establish NB-IoT honeycomb network and realize the collection and the transmission of data to realized the real standard of thing networking based on narrow band thing networking of honeycomb, this disclosure introduces the teaching field with NB-IoT among the 5G communication technology, for the student master leading-edge science and technology provides the helping hand, and this disclosed real subassembly of instructing is placed in real case of instructing, and whole real device of instructing is convenient for carry, convenient to popularize and use.
Description
Technical Field
The disclosure relates to the technical field of internet of things, in particular to an NB-IoT practical training experiment box.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
For telecommunication operators, the application of internet of things such as car networking, intelligent medical treatment and smart home can generate massive connection, which far exceeds the communication requirement between people. The communication scale between people is close to the ceiling, and the communication between objects just enters the growth express way. With the start of new markets such as wearable, car networking and intelligent meter reading, ideas such as industry 4.0, smart cities and smart agriculture are realized, and the times of all things interconnection are accelerating. Many enterprises expect that the worldwide internet of things will be a billion times in the future. A large number of object-to-object connections have emerged, however, these connections are mostly carried over short-range communication technologies such as bluetooth, Wi-Fi, etc., but not over operator mobile networks. The traditional object-to-object connection can not solve the problems of large capacity, long distance, low power consumption and low cost of the system.
The cellular-based narrowband Internet of Things (NB-IoT) is an important branch of the Internet of everything. The NB-IoT is constructed in a cellular network, only consumes about 180KHz of bandwidth, and can be directly deployed in a GSM network, a UMTS network or an LTE network so as to reduce the deployment cost and realize smooth upgrading.
The NB-IoT has four characteristics: the method has the advantages that firstly, the wide coverage is realized, improved indoor coverage is provided, and the NB-IoT has 20dB gain compared with the existing network under the same frequency band, and the coverage area is enlarged by 100 times; secondly, the system has the capacity of supporting massive connections, one NB-IoT sector can support 10 ten thousand connections, and the system supports low delay sensitivity, ultralow equipment cost, low equipment power consumption and optimized network architecture; thirdly, the power consumption is lower, and the standby time of the NB-IoT terminal module can be as long as 10 years; fourth, lower module cost, enterprise expects a single contiguous module to exceed $ 5.
In view of the growing maturity of NB-IoT technology and the growing abundance of NB-IoT technology applications, and the corresponding needs of talents will increase, developing application talents in this aspect is focused, and providing an NB-IoT technology training device is a technical problem that needs to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the invention provides an NB-IoT practical training experiment box, wherein an NB-IoT local server, at least two NB-IoT nodes and a sensor development kit are arranged in the experiment box, and the NB-IoT cellular network can be established to realize data acquisition and transmission by connecting the practical training components and loading corresponding configuration files, so that the practical training of the Internet of things based on the cellular narrowband Internet of things is realized.
In order to achieve the purpose, the following technical scheme is adopted in the disclosure:
one or more embodiments provide an NB-IoT practical training experimental box, which comprises an experimental box, an NB-IoT local server, at least two NB-IoT nodes and a sensor development kit, wherein the NB-IoT local server, the NB-IoT nodes and the sensor development kit are arranged in the experimental box, the sensor development kit is used for detecting data, the NB-IoT nodes are used for being connected with the sensor development kit and acquiring the detected data, the NB-IoT nodes are connected with each other to form a cellular network, and the NB-IoT local server is used for being connected with at least one NB-IoT node and acquiring the acquired data of all the NB-IoT nodes in the cellular network;
a plurality of built-in cavities are arranged in the experiment box, and the cavity structures of the built-in cavities are respectively adapted to the sensor development kit, the NB-IoT node and the NB-IoT local server.
Further, the NB-IoT node includes an NB-IoT terminal node and an NB-IoT terminal node development board.
Further, the NB-IoT terminal node development board comprises a development board ARM processing unit, a development board NB-IoT communication module, keys, an indicator light and a sensor connection interface, wherein the development board ARM processing unit is respectively connected with the development board NB-IoT communication module, the keys and the sensor connection interface, and the indicator light and the sensor connection interface are connected in series.
Further, the NB-IoT terminal node comprises a terminal node ARM processing unit, a terminal node NB-IoT communication module and a memory, wherein the terminal node ARM processing unit is respectively connected with the terminal node NB-IoT communication module and the memory.
Further, the sensor development kit comprises an acceleration sensor module, an illumination sensor module, an ultrasonic sensor module, a magnetic resistance sensor module, a temperature and humidity sensor module, a GPS module and a buzzer module.
Furthermore, the training box also comprises teaching and auxiliary materials, and a corresponding file placing area is arranged in the training box.
Further, the teaching and auxiliary materials comprise NB-IoT practical training instruction manual, experiment manual, teaching PPT designed for a teacher end, teaching courseware and NB-IoT technical teaching materials designed for a student end.
Compared with the prior art, the beneficial effect of this disclosure is:
(1) according to the technical scheme, the NB-IoT local server, the at least two NB-IoT nodes and the sensor development kit are arranged in the experimental box, the NB-IoT cellular network can be established to realize data acquisition and transmission by connecting the training components and loading corresponding configuration files, and therefore the practical training of the narrow-band Internet of things based on the cellular network of the Internet of things is realized.
(2) The method combines the theoretical knowledge and practice of NB-IoT (NB-IoT) by a cloud-end removal technology, and most of the NB-IoT is deployed in the service and function of a platform and integrated on a local network manager provided by an experimental box, so that the experimental process of the experimental box is independent of a remote cloud platform, the experiment can be realized in the local experimental box, and the operability of practical training is enhanced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure and not to limit the disclosure.
Fig. 1 is an NB-IoT practical training network architecture diagram of the present disclosure;
FIG. 2 is a schematic structural diagram of a training case of the present disclosure;
fig. 3 is a block diagram of an NB-IoT terminal node development board structure of the present disclosure;
fig. 4 is a block diagram of a generic NB-IoT terminal node structure of the present disclosure.
The specific implementation mode is as follows:
the present disclosure is further described with reference to the following drawings and examples.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
In the technical solution disclosed in one or more embodiments, as shown in fig. 1, an NB-IoT practical training experiment box includes an experiment box, an NB-IoT local server disposed in the experiment box, at least two NB-IoT nodes, and a sensor development kit, where the sensor development kit is used to detect data, the NB-IoT nodes are used to connect with the sensor development kit and collect the detected data, the NB-IoT nodes are connected with each other to form a cellular network, and the NB-IoT local server is used to connect with at least one NB-IoT node and acquire collected data of all NB-IoT nodes in the cellular network;
built-in cavities which are matched with the appearance structures of the sensor development kit, the NB-IoT node and the NB-IoT local server are respectively arranged in the experimental box shown in FIG. 2 and are respectively used for storing the sensor development kit, the NB-IoT node and the NB-IoT local server.
The NB-IoT local server comprises a memory, a processor, a patch panel and a shell, wherein the patch panel and the memory are respectively connected with the processor. The type of the processor is raspberry pi 3B +, and the local server is internally provided with an NB-IoT communication protocol to realize API calling.
The patch panel is used for the NB-IoT local server to extend other devices, such as sensor modules or other communication modules. The adapter plate structure is a single-layer circuit board, and is provided with a pin row and a pluggable module.
The NB-IoT local server enables localized storage of NB-IoT node data while supporting invocation of APIs. The local server has built in software services that support NB-IoT communication services. The software service is provided in a WEB API mode, that is, NB-IoT node data interaction is performed by accessing an API interface provided by a local server through a third-party device such as a PC, a tablet computer, a mobile phone APP and other devices supporting WEB services. Through the local server, the application data of the NB-IoT node can be checked at the Web client, and the API interface can be called at the Web client to realize downlink data interaction with the NB-IoT node. In addition, the NB-IoT local server rich API interface, as well as the detailed specification documents and examples, can meet the customization needs of various application scenarios.
According to the operability of the experiment, the practical training purposes of the NB-IoT nodes are classified into two types, wherein one type is mainly used for testing and using NB-IoT terminal nodes of an NB-IoT communication protocol. One is an NB-IoT terminal node development board used to develop and debug devices. The data transmission function is the same as that of the NB-IoT terminal node development board.
As shown in fig. 3, the NB-IoT terminal node development board is mainly composed of a development board ARM processing unit, a development board NB-IoT communication module, keys, indicator lights, and a sensor connection interface. The ARM processing unit is respectively connected with the NB-IoT communication module, the keys and the sensor connecting interface, and the indicator light and the sensor connecting interface are connected in series and used for indicating whether the interfaces can normally transmit data. The keys are used for man-machine interaction, such as data acquisition operation triggered by a sensor, program flow control and the like.
The sensor suite and the NB-IoT communication module can be installed on the NB-IoT development board through corresponding connection interfaces, and the NB-IoT development board can perform data transmission with the NB-IoT local server through an NB-IoT network and an Ethernet. The NB-IoT communications module model may be the NB05-01 module.
As shown in fig. 4, the NB-IoT terminal node mainly includes a terminal node ARM processing unit, a terminal node NB-IoT communication module, and a memory, and the difference from the hardware structure of the NB-IoT terminal node development board is that no sensor connection interface is provided, and the NB-IoT terminal node is mainly used for testing and using an NB-IoT communication protocol, and is connected with an NB-IoT local server through the NB-IoT communication module for testing, and during training, data to be transmitted is stored in the memory, and whether the data can be normally transmitted is checked. The NB-IoT terminal node can only be used for multi-node communication test, and can not develop and debug the sensor. The memory is used for storing the data of the configuration, and the data of the configuration can be transmitted by wireless to check whether the network connection is normal.
NB-IoT nodes support commonly used peripheral communication protocols: UART, I2C, SPI, etc., and provides rich expansion interfaces for the outside. The development and learning of STM32L0 series chip basic resources are supported, and the application development and debugging of the characteristics of NB-IoT technology, such as low power consumption, ultra-long distance, frequency hopping, spread spectrum communication and the like, are supported.
The sensor development suite may set the most common peripheral interfaces: I2C, SPI, UART, etc. After the use operation of the NB-IoT node and the NB-IoT local server is mastered, the sensor development suite can be arranged on an NB-IoT terminal node development board for deep and customized application development, and the practical application and the practical ability of students are deepened.
The sensor development kit may include an acceleration sensor module, a light sensor module, an ultrasonic sensor module, a magnetoresistive sensor module, a temperature and humidity sensor module, a GPS module, and a buzzer module. The acceleration sensor module, the illumination sensor module, the ultrasonic sensor module, the magnetic resistance sensor module, the temperature and humidity sensor module, the GPS module and the buzzer module are respectively connected with the NB-IoT terminal node during practical training.
The acceleration sensor can adopt ADXL362 chip to realize 3-axis measurement, and can adopt SPI communication interface. The illumination sensor adopts a photosensitive device, can be a photoresistor, has response wavelength of 320-730 nm, and can adopt an analog output communication interface. The ultrasonic sensor can adopt KS-A104, the detection distance is 20-4500mm, the angle of a beam wave is less than 15 degrees, and a UART interface is supported. The magneto-resistive sensor can adopt an HMC5883L chip, the module measuring range is +/-8 Gas, and an I2C communication interface can be adopted. The temperature and humidity sensor module can adopt SHT20, the temperature measurement range is-40-125 ℃, the humidity measurement range is 0-100% RH, and an I2C interface is adopted for communication. The GPS can adopt an SKG09A module, the positioning precision is 2.5m (SBAS), the first hot start positioning time is less than 1s, and a UART communication interface is supported.
The NB-IoT communication module can adopt an NB05-01 module, the transmitting power is 23dBm +/-2 dB, a UART communication interface can be adopted, AT instructions are supported, and 850MHz and 900MHz frequency bands are supported. The buzzer is connected with the processor and can be set to be a sensor alarm, a communication state prompt, a key prompt tone and the like.
This real experimental box of instructing can also include teaching and assisting material, can set up corresponding placing area in real experimental box and be used for placing teaching and assisting material, teaching and assisting material can include:
aiming at the overall description of software and hardware equipment of the practical training platform: NB-IoT training platform specifications;
experiments designed for NB-IoT communication technologies: an experimental manual;
teaching PPT and teaching courseware designed aiming at a teacher end;
NB-IoT technical teaching materials designed for students.
The practical training experiment box is suitable for relevant fields such as school laboratories, Internet of things scientific research enterprises and institutions, Internet of things system integrator demonstration systems and the like.
The practical training experiment box is used as NB-IoT teaching equipment, is mainly used for teaching, development and experiments, provides good teaching and experiment environments for relevant courses of the Internet of things major, is convenient to display and teach, and enables students to rapidly master NB-IoT relevant technologies. By means of the device and relevant teaching software, teachers can conveniently demonstrate development processes and running examples of NB-IoT in classes, and meanwhile teachers and students can be assisted to conduct course practice efficiently.
The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure, and various modifications and changes may be made to the present disclosure by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present disclosure should be included in the protection scope of the present disclosure.
Although the present disclosure has been described with reference to specific embodiments, it should be understood that the scope of the present disclosure is not limited thereto, and those skilled in the art will appreciate that various modifications and changes can be made without departing from the spirit and scope of the present disclosure.
Claims (6)
1. An NB-IoT training experiment box is characterized in that: the system comprises a laboratory box, an NB-IoT local server, at least two NB-IoT nodes and a sensor development kit, wherein the NB-IoT local server, the NB-IoT nodes and the sensor development kit are arranged in the laboratory box, the sensor development kit is used for detecting data, the NB-IoT nodes are used for being connected with the sensor development kit and collecting the detected data, the NB-IoT nodes are mutually connected to form a cellular network, and the NB-IoT local server is used for being connected with at least one NB-IoT node and acquiring the collected data of all the NB-IoT nodes in the cellular network;
a plurality of built-in cavities are arranged in the experiment box, and the cavity structures of the built-in cavities are respectively adapted to the sensor development kit, the NB-IoT node and the NB-IoT local server.
2. The NB-IoT practical training experimental box of claim 1, wherein: the NB-IoT node comprises an NB-IoT terminal node and an NB-IoT terminal node development board.
3. The NB-IoT practical training experimental box as set forth in claim 2, wherein: the NB-IoT terminal node development board comprises a development board ARM processing unit, a development board NB-IoT communication module, keys, an indicator light and a sensor connection interface, wherein the development board ARM processing unit is respectively connected with the development board NB-IoT communication module, the keys and the sensor connection interface, and the indicator light is connected with the sensor connection interface in series.
4. The NB-IoT practical training experimental box as set forth in claim 2, wherein: the NB-IoT terminal node comprises a terminal node ARM processing unit, a terminal node NB-IoT communication module and a memory, wherein the terminal node ARM processing unit is respectively connected with the terminal node NB-IoT communication module and the memory.
5. The NB-IoT practical training experimental box of claim 1, wherein: the sensor development kit comprises an acceleration sensor module, an illumination sensor module, an ultrasonic sensor module, a magnetic resistance sensor module, a temperature and humidity sensor module, a GPS module and a buzzer module.
6. The NB-IoT practical training experimental box of claim 1, wherein: still including instructing supplementary material, set up corresponding file in instructing the case and place the region.
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| CN112954725A (en) * | 2021-02-10 | 2021-06-11 | 深圳市汇顶科技股份有限公司 | Test method, communication system and NB-IoT device |
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| CN112954725A (en) * | 2021-02-10 | 2021-06-11 | 深圳市汇顶科技股份有限公司 | Test method, communication system and NB-IoT device |
| CN112954725B (en) * | 2021-02-10 | 2023-08-01 | 深圳市汇顶科技股份有限公司 | Test method, communication system and NB-IoT device |
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