CN220252570U - Development board for Internet of things - Google Patents
Development board for Internet of things Download PDFInfo
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- CN220252570U CN220252570U CN202322026690.5U CN202322026690U CN220252570U CN 220252570 U CN220252570 U CN 220252570U CN 202322026690 U CN202322026690 U CN 202322026690U CN 220252570 U CN220252570 U CN 220252570U
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- 238000011161 development Methods 0.000 title claims abstract description 51
- 238000004891 communication Methods 0.000 claims abstract description 54
- 230000001105 regulatory effect Effects 0.000 claims description 12
- 230000000087 stabilizing effect Effects 0.000 claims description 2
- 238000004806 packaging method and process Methods 0.000 abstract description 9
- 230000002093 peripheral effect Effects 0.000 abstract description 4
- 238000002474 experimental method Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 230000004075 alteration Effects 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011981 development test Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007650 screen-printing Methods 0.000 description 2
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses an Internet of things development board which comprises a circuit board, and a network communication module, an antenna interface module, a power supply module, an external expansion interface module, a serial port switching module and a power switch which are arranged on the circuit board. Because of the provision of a plurality of standard interfaces, experiments and development of various peripheral devices can be conveniently carried out. Because the external expansion interface module is convenient to connect and insert, other packaging modules can be welded on the adapter plate of the external expansion interface module first, then the adapter plate is inserted on the external expansion interface module for use, and the other packaging modules are not required to be welded on the circuit board directly, so that the volume of the development board of the Internet of things is effectively reduced. Meanwhile, the serial port switching module greatly facilitates later expansion and control and improves expansibility. The circuit board is also provided with an identification mark aiming at the network communication module, the antenna interface module, the power supply module, the external expansion interface module, the serial port switching module and the power switch, so that the circuit board is convenient to find by a user at a glance.
Description
Technical Field
The utility model relates to the technical field of the Internet of things, in particular to an Internet of things development board.
Background
In the Internet of things era of Internet of everything, connection between objects is mainly carried out through a network, and objects can be connected through wired carriers such as network cables or wireless carriers such as 4G, WIFI.
The 4G technology is mainly adopted in wireless telecommunication. Therefore, the 4G module is an important carrier for connecting objects and is a core component for connecting terminal equipment to the Internet, and a product developer of the Internet of things needs to pre-develop the 4G module through a development board in the early stage.
Therefore, the demand for development boards is large in the development and popularization processes of the Internet of things products, but the development boards on the market are expensive, and the development and marketing efficiency of the Internet of things products are seriously affected due to the fact that interfaces are not matched or functional demands are inconsistent.
Disclosure of Invention
The embodiment of the utility model solves the technical problems of larger volume and poor expansibility of the existing development test board of the Internet of things by providing the development board of the Internet of things.
The utility model provides an Internet of things development board, which comprises a circuit board, and a network communication module, an antenna interface module, a power supply module, an external expansion interface module, a serial port switching module and a power switch which are arranged on the circuit board;
the network communication module is electrically connected with the antenna interface module, the expansion interface module and the serial port switching module through the circuit board;
the power supply module is electrically connected with the network communication module, the antenna interface module, the expansion interface module and the serial port switching module through the power switch.
Optionally, the development board of the internet of things further includes:
the power supply comprises a circuit board, a voltage-stabilized power supply module, an antenna interface module, an external expansion interface module and a serial port switching module, wherein the circuit board is arranged on the circuit board, the input end of the voltage-stabilized power supply module is electrically connected with the output end of the power supply module, and the output end of the voltage-stabilized power supply module is electrically connected with the network communication module, the antenna interface module, the external expansion interface module and the serial port switching module.
Optionally, the development board of the internet of things further includes:
the universal serial bus interface is arranged on the circuit board and is in communication connection with the network communication module; the universal serial bus interface is electrically connected with the antenna interface module, the expansion interface module and the serial port switching module through the voltage stabilizing power supply module.
Optionally, the development board of the internet of things further includes:
the indicating lamp is arranged on the circuit board and is electrically connected with the network communication module.
Optionally, the development board of the internet of things further includes:
the reset key is arranged on the circuit board and is electrically connected with the network communication module.
Optionally, the expansion interface module includes a PCIE expansion interface and a BTB expansion interface; the PCIE expansion interfaces comprise a plurality of BTB expansion interfaces; the PCIE expansion interface and the BTB expansion interface are arranged on the circuit board in a mutually perpendicular mode.
Optionally, the network communication module includes a plurality of SIM card slots and a 4G communication module; the SIM card slots are electrically connected with the 4G communication module.
Optionally, the antenna interface module includes a plurality of antenna connection screw ports.
Optionally, the indicator lamps include a plurality of indicator lamps, and the plurality of indicator lamps are arranged in turn.
Optionally, the circuit board is provided with an identification mark corresponding to the network communication module, the antenna interface module, the power supply module, the external expansion interface module, the serial port switching module, the power switch, the regulated power supply module, the universal serial bus interface, the indicator light and the reset key.
One or more technical solutions provided in the embodiments of the present utility model at least have the following technical effects or advantages:
the development board of the Internet of things provided by the embodiment of the utility model comprises a circuit board, and a network communication module, an antenna interface module, a power supply module, an external expansion interface module, a serial port switching module and a power switch which are arranged on the circuit board. Because of the provision of a plurality of standard interfaces, experiments and development of various peripheral devices can be conveniently carried out. Because the external expansion interface module is convenient to connect and insert, other packaging modules can be welded on the adapter plate of the external expansion interface module first, then the adapter plate is inserted on the external expansion interface module for use, and the other packaging modules are not required to be welded on the circuit board directly, so that the volume of the development board of the Internet of things is effectively reduced. Meanwhile, the serial port switching module greatly facilitates later expansion and control and improves expansibility. The circuit board is also provided with an identification mark aiming at the network communication module, the antenna interface module, the power supply module, the external expansion interface module, the serial port switching module and the power switch, so that the circuit board is convenient to find by a user at a glance.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an internet of things development board in an embodiment of the utility model.
Detailed Description
The embodiment of the utility model solves the technical problems of larger volume and poor expansibility of the existing development test board of the Internet of things by providing the development board of the Internet of things.
In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.
First, the term "and/or" appearing herein is merely an association relationship describing associated objects, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
Referring to fig. 1, the development board for internet of things according to an embodiment of the present utility model includes a circuit board 100, and a network communication module 101, an antenna interface module 102, a power supply module 103, an expansion interface module 104, a serial port switching module 105 and a power switch 106 disposed on the circuit board 100.
The network communication module 101 is electrically connected with the antenna interface module 102, the external expansion interface module 104 and the serial port switching module 105 through the circuit board 100, and the power supply module 103 is electrically connected with the network communication module 101, the antenna interface module 102, the external expansion interface module 104 and the serial port switching module 105 through the power switch 106.
The external dimension of the circuit board 100 may be set according to practical requirements, and in an alternative embodiment, the external dimension of the circuit board 100 may be 100mm by 58mm.
The power module 103 may be a dc outlet, in particular a 5.5mm/2.1mm dc outlet. In order to meet the wiring and networking requirements of various industrial environments. The power supply module 103 can support direct current input in the range of 9V-48V, so that the power supply module is convenient to adapt to various industrial power supplies. The power supply module 103 also provides three power protection of reverse connection, short circuit and surge, and the reliability of power supply is greatly improved.
The network communication module 101 may be a wireless modem and the network communication module 101 may be a wireless local area network transceiver or a mobile data network transceiver, for example. In a specific implementation process, the network communication module 101 may include a plurality of SIM (Subscriber Identification Module, subscriber identity module) card slots and a 4G communication module, where the SIM card slots are electrically connected to the 4G communication module.
The SIM card slots can comprise two SIM card slots adopting standard 6-pin drawers, the SIM card slot circuit is connected with a 4G mobile data transceiver circuit (4G communication module), and the connection circuit is provided with antistatic protection. The SIM card slot can be a drawer type card slot, and a user can select one kind of SIM card according to the actual use condition of the user or combine a plurality of SIM cards, so that mobile networks with different standards can be flexibly covered.
The antenna interface module 102 may include a plurality of antenna connection screw ports. Specifically, an antenna connection screw may be welded on the side of the circuit board 100, and multiple antenna connection screws are connected to the full-frequency rod antenna to support the 450M-6G frequency band. The antenna is only required to be screwed down according to the corresponding antenna connection screw, and the radio frequency cable of the IPEX buckle on the antenna and the base on the circuit board 100 are respectively connected with the main diversity communication circuit of the 4G LTE module.
The expansion interface module 104 includes a PCIE expansion interface and a BTB expansion interface. The PCIE expansion interfaces include a plurality of BTB expansion interfaces. The PCIE and BTB external expansion interfaces are disposed perpendicular to each other on the circuit board 100.
The expansion interface module 104 may be soldered to an intermediate position of the circuit Board 100, and specifically, the expansion interface module 104 may include a Mini PCIE mother socket and 2 x 25 BTB (Board-to-Board Connectors) mother sockets. The two board-to-board connectors are mutually arranged in a 90-degree cross mode, the 4G communication module is alternatively connected, the space of the development board of the Internet of things can be saved through the layout design, and the volume of the development board of the Internet of things is enabled to be small.
And, because these two board to board connectors connect and insert very conveniently, the user is convenient for embedding other encapsulation modules of independent design. The method is specifically embedded in the following steps: and welding other packaging modules on the mPCIe adapter plate or the BTB adapter plate, and then inserting the packaging modules into corresponding female seats for use, so that normal 4G Internet of things development is realized. Other packaging modules are not required to be directly welded to the circuit board 100, so that the size of the development board of the Internet of things is further reduced.
The serial port switching module 105 may be a pin header, and the serial port switching module 105 may be an I/O switching interface of 2×10 pin header, so that the user can conveniently expand and switch in the later period by leading out 18I/O ports.
The power switch 106 may be a single pole double throw key switch, and the direct current power input to the circuit board 100 is controlled to be turned on or off by toggling the single pole double throw key switch.
In order to make the network communication module 101, the antenna interface module 102, the expansion interface module 104, and the serial port switching module 105 work more stably, the development board of the internet of things further includes: a regulated power supply module 107. The regulated power supply module 107 is disposed on the circuit board 100, an input end of the regulated power supply module 107 is electrically connected to an output end of the power supply module 103, and an output end of the regulated power supply module 107 is electrically connected to the network communication module 101, the antenna interface module 102, the expansion interface module 104 and the serial port switching module 105.
The regulated power supply module 107 may include two unidirectional diodes that prevent the input voltage from flowing backward. Specifically, the regulated power supply module 107 may employ 2 DC-DC buck chips to prevent the input voltage from flowing backward, and in the specific implementation process, the regulated power supply module 107 may support a wide voltage input in a range of 5-24V. One of the DC-DC buck chips is used for converting 3.8V power required by the regulated power supply module 107, and the other DC-DC buck chip is used for converting 3.3V power required by the network communication module 101, the antenna interface module 102, the expansion interface module 104 and the serial port switching module 105.
In order to facilitate the debugging and firmware updating of the network communication module 101, the development board of the internet of things further includes: a universal serial bus interface 108. The universal serial bus interface 108 is arranged on the circuit board 100, and the universal serial bus interface 108 is in communication connection with the network communication module 101; the usb interface 108 is further electrically connected to the antenna interface module 102, the flash interface module 104, and the serial port adapter module 105 through the regulated power supply module 107.
Specifically, the universal serial bus interface 108 may be a USB Type-a interface, the universal serial bus interface 108 may also be a USB Type-B interface, and the universal serial bus interface 108 may also be a USB Type-C interface.
The USB interface 108 is connected to USB pins (usb_vbus, usb_dm, usb_dp, GND) of the 4G communication module, so as to implement that an AT (AT command) port sends an AT command, a DIAG (Diagnostics) port downloads firmware and a print trace (log), and meanwhile, the usb_vbus is connected to the regulated power supply module 107, which may be used as a power supply interface.
As an alternative implementation manner, the circuit board 100 may be supplied with power by the universal serial bus interface 108 or the power supply module 103, and the combined end of the universal serial bus interface 108 and the power supply module 103 is connected with two unidirectional diodes in parallel to prevent the input voltage from flowing backwards.
In order to grasp the working state of the development board of the internet of things more intuitively, the development board of the internet of things can further comprise: an indicator lamp 109. The indicator lamp 109 is disposed on the circuit board 100, and the indicator lamp 109 is electrically connected to the network communication module 101. As an alternative embodiment, the indicator lamp 109 includes a plurality of indicator lamps, and the plurality of indicator lamps 109 are arranged in sequence.
The operating states of the internet of things development board can be represented by the lighting conditions of the plurality of indicator lamps 109. For example, if there are 4 indicator lamps 109 arranged from top to bottom, the indicator lamps 109 represent, in order from top to bottom: signal strength, 4G network cues, power supply.
In one embodiment, if the power supply lamp is always on and the 4G lamp (3G+2G lamp) is on after the development board of the Internet of things is electrified and automatically started, the signal lamp is only on, and the signal intensity is poor; if the development board of the Internet of things is electrified and then is automatically started, the power lamp is normally on, the 4G lamp (3G+2G lamp) is lighted, and the signal lamp is fully on, so that the representative signal intensity is good.
In the use process of the development board of the Internet of things, various settings are usually carried out, and the problem that the development board of the Internet of things works abnormally due to incorrect parameter settings is avoided. In order to facilitate recovery of default setting parameters of the internet of things development board, the internet of things development board may further include: reset key 110. The reset case is disposed on the circuit board 100, and the reset button 110 is electrically connected to the network communication module 101.
In a specific implementation process, the reset key 110 may be a single-pole single-throw light touch key switch, and when the network communication module works normally, the reset end RST and +3.3v of the network communication module 101 are connected through a current limiting resistor to maintain a high level state; when the reset key 110 is pressed, the reset terminal RST of the network communication module 101 is grounded, and a low level is output to reset the chip of the network communication module 101.
In order to facilitate the user to distinguish each module on the development board of the internet of things, the circuit board 100 is provided with an identification mark corresponding to the network communication module 101, the antenna interface module 102, the power supply module 103, the external expansion interface module 104, the serial port switching module 105, the power switch 106, the voltage-stabilizing power supply module 107, the universal serial bus interface 108, the indicator lamp 109 and the reset key 110.
The identification mark can be marked on the circuit board 100 by silk screen printing and is framed by a box, so that a user can see the process of developing the board by using the Internet of things. Part of the common peripherals are marked by larger silk screen printing, so that the search is more convenient.
The technical scheme in the embodiment of the application can solve the technical problem only through the connection arrangement of the devices, and has at least the following technical effects or advantages:
because of the provision of a plurality of standard interfaces, experiments and development of various peripheral devices can be conveniently carried out. Because the external expansion interface module is convenient to connect and insert, other packaging modules can be welded on the adapter plate of the external expansion interface module first, then the adapter plate is inserted on the external expansion interface module for use, and the other packaging modules are not required to be welded on the circuit board directly, so that the volume of the development board of the Internet of things is effectively reduced. Meanwhile, the serial port switching module greatly facilitates later expansion and control and improves expansibility. The circuit board is also provided with an identification mark aiming at the network communication module, the antenna interface module, the power supply module, the external expansion interface module, the serial port switching module and the power switch, so that the circuit board is convenient to find by a user at a glance.
While preferred embodiments of the present utility model have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the utility model.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (10)
1. The development board for the Internet of things is characterized by comprising a circuit board, and a network communication module, an antenna interface module, a power supply module, an external expansion interface module, a serial port switching module and a power switch which are arranged on the circuit board;
the network communication module is electrically connected with the antenna interface module, the expansion interface module and the serial port switching module through the circuit board;
the power supply module is electrically connected with the network communication module, the antenna interface module, the expansion interface module and the serial port switching module through the power switch.
2. The internet of things development board of claim 1, further comprising:
the power supply comprises a circuit board, a voltage-stabilized power supply module, an antenna interface module, an external expansion interface module and a serial port switching module, wherein the circuit board is arranged on the circuit board, the input end of the voltage-stabilized power supply module is electrically connected with the output end of the power supply module, and the output end of the voltage-stabilized power supply module is electrically connected with the network communication module, the antenna interface module, the external expansion interface module and the serial port switching module.
3. The internet of things development board of claim 2, further comprising:
the universal serial bus interface is arranged on the circuit board and is in communication connection with the network communication module; the universal serial bus interface is electrically connected with the antenna interface module, the expansion interface module and the serial port switching module through the voltage stabilizing power supply module.
4. The internet of things development board of claim 3, further comprising:
the indicating lamp is arranged on the circuit board and is electrically connected with the network communication module.
5. The internet of things development board of claim 4, further comprising:
the reset key is arranged on the circuit board and is electrically connected with the network communication module.
6. The internet of things development board of claim 5, wherein the expansion interface module comprises a PCIE expansion interface and a BTB expansion interface;
the PCIE expansion interfaces comprise a plurality of BTB expansion interfaces; the PCIE expansion interface and the BTB expansion interface are arranged on the circuit board in a mutually perpendicular mode.
7. The internet of things development board of claim 6, wherein the network communication module comprises a plurality of SIM card slots and a 4G communication module;
the SIM card slots are electrically connected with the 4G communication module.
8. The internet of things development board of claim 7, wherein the antenna interface module includes a plurality of antenna connection screw connections.
9. The internet of things development board of claim 8, wherein the indicator light comprises a plurality of indicator lights, the plurality of indicator lights being arranged in sequence.
10. The development board of claim 9, wherein the circuit board is provided with identification marks corresponding to the network communication module, the antenna interface module, the power supply module, the expansion interface module, the serial port switching module, the power switch, the regulated power supply module, the universal serial bus interface, the indicator light, and the reset key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322026690.5U CN220252570U (en) | 2023-07-31 | 2023-07-31 | Development board for Internet of things |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322026690.5U CN220252570U (en) | 2023-07-31 | 2023-07-31 | Development board for Internet of things |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220252570U true CN220252570U (en) | 2023-12-26 |
Family
ID=89268621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322026690.5U Active CN220252570U (en) | 2023-07-31 | 2023-07-31 | Development board for Internet of things |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220252570U (en) |
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2023
- 2023-07-31 CN CN202322026690.5U patent/CN220252570U/en active Active
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