CN205830051U - SCM Based 3G mobile communications device and 4G mobile communications device - Google Patents
SCM Based 3G mobile communications device and 4G mobile communications device Download PDFInfo
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- CN205830051U CN205830051U CN201620823749.0U CN201620823749U CN205830051U CN 205830051 U CN205830051 U CN 205830051U CN 201620823749 U CN201620823749 U CN 201620823749U CN 205830051 U CN205830051 U CN 205830051U
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Abstract
This utility model relates to 3G/4G mobile communication technology field, particularly relates to a kind of SCM Based 3G mobile communications device and 4G mobile communications device.This device includes single-chip microcomputer, 3G/4G module, single-chip microcomputer includes micro-control unit and usb host driver element, 3G/4G module includes that 3G/4G modem module and USB device driver element, single-chip microcomputer and 3G/4G module are connected by usb host driver element and USB device driver element communication.This utility model uses common single-chip microcomputer and 3G/4G module to be implemented in combination in 3G/4G mobile communication at a high speed, effectively reduce the development difficulty of 3G/4G mobile communications device, save hardware cost, convenient in the universal offer of Internet of Things industry for 3G/4G mobile communication.
Description
Technical field
This utility model relates to 3G/4G mobile communication technology field, particularly relates to a kind of SCM Based 3G and moves logical
T unit and 4G mobile communications device.
Background technology
Along with popularizing of 3G/4G mobile communication technology application, high-speed network communication based on 3G/4G wireless module is applied
Demand in Internet of Things, industrial automation industry field gets more and more.Main to 3G/4G mobile communication technology of current each manufacturer
Application mode is high-performance processor+3G/4G module.The scheme using " high-performance processor+3G/4G module " can realize height
The demand of speed communication, but this method all has an obvious shortcoming:
1. cost is high: " high-performance processor " refer to dominant frequency more than 200MHz, can run built-in Linux,
The single-chip microcomputer of the operating systems such as WINCE, Android." single-chip microcomputer " refers to that dominant frequency is at below 200MHz, it is impossible to run " senior embedding
Enter formula operating system ", Flash and main RAM is in sheet." high-performance processor " is much higher compared to " single-chip microcomputer " cost,
Also need to increase extra peripheral components RAM chip, Flash chip, could be properly functioning.
2. development difficulty is big: development difficulty based on high-end embedded system, bigger than Development of Single-chip Computer System difficulty
Many.
These shortcomings constrain mobile communication technology application development from low speed to high speed significantly.
Summary of the invention
For the problems referred to above, this utility model provides a kind of SCM Based 3G mobile communications device and 4G moves logical
T unit, reduces development difficulty and the cost of 3G/4G mobile communications device.
The technical solution adopted in the utility model is as follows:
A kind of SCM Based 3G mobile communications device, including single-chip microcomputer and 3G module, single-chip microcomputer includes microcontroller list
Unit and usb host driver element, 3G module includes 3G modem module and USB device driver element, single-chip microcomputer and 3G module
Connected by usb host driver element and USB device driver element communication.
This device also includes a UART/SPI Peripheral Interface, and this interface is connected with micro-control unit communication, for by numeral
Signal sends according to UART/SPI agreement or receives.
A kind of SCM Based 4G mobile communications device, including single-chip microcomputer and 4G module, single-chip microcomputer includes microcontroller
Unit and usb host driver element, 4G module includes 4G modem module and USB device driver element, single-chip microcomputer and 4G mould
Block is connected by usb host driver element and USB device driver element communication.
This device also includes a UART/SPI Peripheral Interface, and this interface is connected with micro-control unit communication, for by numeral
Signal sends according to UART/SPI agreement or receives.
In said apparatus, 3G or 4G modem module main circuit antenna to be included, wave filter, amplifier, wireless receiving and dispatching
Device, baseband chip and application processor, it is achieved that the conversion between 3G/4G air analog signal and digital signal.USB device drives
Moving cell and usb host driver element lay respectively on 3G/4G module and single-chip microcomputer, as USB hardware interface and the 3G/ of single-chip microcomputer
When the USB interface of 4G module connects, two drive parts cooperate, and provide to drive to 3G/4G module and support.
This utility model uses common single-chip microcomputer and 3G/4G module to be implemented in combination in 3G/4G mobile communication at a high speed, has
Effect reduces the development difficulty of 3G/4G mobile communications device, saves hardware cost, for 3G/4G mobile communication at Internet of Things row
The universal offer of industry is convenient.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of this utility model embodiment one；
Fig. 2 is the structured flowchart of this utility model embodiment two；
Fig. 3 is this utility model initialization thread flow chart；
Fig. 4 is the communication thread flow chart from UART/SPI interface to 3G/4G network-side；
Fig. 5 is the communication thread flow chart from 3G/4G network-side to UART/SPI interface；
In figure, 1, UART/SPI Peripheral Interface, 2, single-chip microcomputer, 21, micro-control unit, 22, usb host driver element, 3,
3G module, 31, USB device driver element, 32,3G modem module, 4,4G module, 41, USB device driver element, 42,4G
Modem module, 5,3G network, 6,4G network.
Detailed description of the invention
Embodiment one
A kind of SCM Based 3G mobile communications device, as it is shown in figure 1, include single-chip microcomputer 2 and 3G module 3, single-chip microcomputer 2
Including micro-control unit 21 and usb host driver element 22,3G module 3 includes that 3G modem module 32 and USB device drive
Unit 31, single-chip microcomputer 2 and 3G module 3 is connected by usb host driver element 22 and USB device driver element 31 communication.This dress
Putting and also include a UART/SPI Peripheral Interface 1, this interface is connected with micro-control unit 21 communication, for by digital signal according to
UART/SPI agreement sends or receives.3G module 3 can be with 3G network 5 communication, it is achieved data send or receive.
Embodiment two
A kind of SCM Based 4G mobile communications device, as in figure 2 it is shown, include single-chip microcomputer 2 and 4G module 4, single-chip microcomputer 2
Including micro-control unit 21 and usb host driver element 22,4G module 4 includes that 4G modem module 42 and USB device drive
Unit 41, single-chip microcomputer 2 and 4G module 4 is connected by usb host driver element 22 and USB device driver element 41 communication.This dress
Putting and also include a UART/SPI Peripheral Interface 1, this interface is connected with micro-control unit 21 communication, for by digital signal according to
UART/SPI agreement sends or receives.4G module 4 can be with 4G network 6 communication, it is achieved data send or receive.
Workflow of the present utility model under illustrating as a example by 4G mobile communications device below.
First, 4G mobile communications device carries out initialization thread, as it is shown on figure 3, comprise the following steps:
1, default parameters is read from internal storage.
2,4G module is initialized.
3, dial and set up the connection of link layer.
4, create TCP or UDP to connect, wait transparent transmission task.
5, UART/SPI interface is set up as the case may be to the communication thread of 4G network-side or 4G network-side to UART/
The communication thread of SPI interface.
As shown in Figure 4, UART/SPI interface is as follows to the communication process of 4G network-side:
1, the data of required transmission are got by UART/SPI Peripheral Interface.
2, UART/SPI protocol data is converted to the data of usb protocol.
3, the data format analysis of usb protocol is become digital signaling zero and 1 by usb host driver element, and data is passed to
USB device driver element.
4,4G modem module is converted digital signals into wireless 4G signal by signal modulation and is sent to 4G wireless
On network.
As it is shown in figure 5,4G network-side is as follows to the communication process of UART/SPI interface:
1, after device receives wireless 4G network data signals, analogue signal is converted to 0 and 1 by 4G modem module
The digital signal of form.
2, digital signaling zero and 1 are resolved to the data form of usb protocol by USB device driver element, and data are passed to
Usb host driver element.
3, usb protocol data are converted to the data of UART/SPI agreement by usb host driver element.
4, the data of required transmission are sent by UART/SPI Peripheral Interface.
Claims (4)
1. a SCM Based 3G mobile communications device, it is characterised in that: include single-chip microcomputer (2) and 3G module (3), monolithic
Machine includes micro-control unit (21) and usb host driver element (22), and 3G module includes that 3G modem module (31) and USB set
Standby driver element (32), single-chip microcomputer and 3G module are connected by usb host driver element and USB device driver element communication.
SCM Based 3G mobile communications device the most according to claim 1, it is characterised in that: this device also includes one
UART/SPI Peripheral Interface (1), this interface is connected with micro-control unit communication, is used for digital signal according to UART/SPI agreement
Send or receive.
3. a SCM Based 4G mobile communications device, it is characterised in that: include single-chip microcomputer (2) and 4G module (4), monolithic
Machine includes micro-control unit (21) and usb host driver element (22), and 4G module includes that 4G modem module (41) and USB set
Standby driver element (42), single-chip microcomputer and 4G module are connected by usb host driver element and USB device driver element communication.
SCM Based 4G mobile communications device the most according to claim 3, it is characterised in that: this device also includes one
UART/SPI Peripheral Interface (1), this interface is connected with micro-control unit communication, is used for digital signal according to UART/SPI agreement
Send or receive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620823749.0U CN205830051U (en) | 2016-07-29 | 2016-07-29 | SCM Based 3G mobile communications device and 4G mobile communications device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620823749.0U CN205830051U (en) | 2016-07-29 | 2016-07-29 | SCM Based 3G mobile communications device and 4G mobile communications device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205830051U true CN205830051U (en) | 2016-12-21 |
Family
ID=57557256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620823749.0U Active CN205830051U (en) | 2016-07-29 | 2016-07-29 | SCM Based 3G mobile communications device and 4G mobile communications device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205830051U (en) |
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2016
- 2016-07-29 CN CN201620823749.0U patent/CN205830051U/en active Active
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CP03 | Change of name, title or address |
Address after: Room 1103 and 1105, 11th floor, building 1, Aosheng building, 1166 Xinluo street, high tech Zone, Jinan City, Shandong Province Patentee after: Shandong Youren networking Co.,Ltd. Address before: 250100 1105, building 1, Aosheng building, 1166 Xinluo street, high tech Zone, Jinan City, Shandong Province Patentee before: SHANDONG YOUREN INFORMATION TECHNOLOGY Co.,Ltd. |