CN113422631A - Beidou terminal machine compatible with multiple network communication modules - Google Patents
Beidou terminal machine compatible with multiple network communication modules Download PDFInfo
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- CN113422631A CN113422631A CN202110445292.XA CN202110445292A CN113422631A CN 113422631 A CN113422631 A CN 113422631A CN 202110445292 A CN202110445292 A CN 202110445292A CN 113422631 A CN113422631 A CN 113422631A
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- beidou terminal
- terminal machine
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18517—Transmission equipment in earth stations
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- Aviation & Aerospace Engineering (AREA)
- General Physics & Mathematics (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention relates to a Beidou terminal compatible with a plurality of network communication modules, which comprises a Beidou terminal base plate, a communication module main plate and a PCI Express mini connector; the Beidou terminal machine bottom plate circuit is fixed, a fixed interface is provided to connect different communication module main boards, and the Beidou terminal machine bottom plate is not redesigned when the communication module is replaced every time; the communication module mainboard is designed into a standard PCI Express mini board card, and the NB-IOT module, the GPRS module and the 4G module are all designed into a PCI Express mini board card form, so that the base plate of the Beidou terminal cannot be changed when the communication module is replaced, and meanwhile, the communication module is compatible with the standard PCI Express mini board card on the market; the PCI Express mini connector is a standard device and is used for connecting a Beidou terminal machine bottom plate and a communication module main plate. The invention has simple design structure and easy realization, can solve the technical problems of different manufacturers, different communication network systems, incompatibility, different driving codes and the like, is suitable for updating and upgrading products, and reduces the loss of manpower and material resources.
Description
Technical Field
The invention relates to a Beidou terminal, in particular to a Beidou terminal compatible with multiple network communication modules.
Background
The Beidou terminal machine can collect output signals of various instruments, sensors and transmitters and remotely transmit data to the cloud platform through the internal communication module, and is suitable for monitoring sites which do not have power supply conditions and are in severe environments.
With the continuous development of the internet of things technology, the Beidou terminal is widely applied to the fields of intelligent water affairs, intelligent agriculture, intelligent manufacturing, intelligent traffic and the like. According to the difference of wireless communication networks, the Beidou terminal machines on the market can be divided into four modes: GPRS mode, 3G mode, 4G mode, and NB-IOT mode. Different communication modules are usually used in the Beidou terminal machine and different communication network systems are used. The PCB packages of modules of different manufacturers and different communication network standards are incompatible, for example, the GPRS module M26 is with pin 44, the GPRS module SIM800 is with pin 68, and the 4G module ME3630 is with pin 93 … …, and meanwhile, the driver codes required by different modules are different.
The method aims at different PCB packaging and driving codes of communication modules of different manufacturers and different communication network systems. The current common solution is to select a communication module, design different circuits according to the communication module, and write corresponding driving codes to complete the design of the Beidou terminal. The problem that this brings is that every development of a kind of big dipper terminating machine, all need carry out redesign development to circuit and code, this cycle that has increased the development, be unfavorable for the quick update of product, all caused the waste in manpower, material resources, financial resources.
Disclosure of Invention
In order to solve the technical problems, the invention provides a novel Beidou terminal which comprises a Beidou terminal base plate, a communication module main plate and a PCI Express mini connector and is compatible with a plurality of network communication modules.
In order to achieve the above object, the present invention adopts the following technical solutions.
The invention provides a Beidou terminal compatible with a multi-network communication module, which comprises a Beidou terminal bottom board, a PCI Express mini connector and a communication module main board; the Beidou terminal machine bottom plate circuit is of a fixed structure and provides a fixed interface; the communication module mainboard is of a standard PCI Express mini board card structure; the PCI Express mini connector is a standard device and is connected with the Beidou terminal machine bottom board and the communication module main board.
Preferably, the Beidou terminal machine bottom plate circuit is fixed, and the Beidou terminal machine bottom plate circuit provides a fixed interface to connect different communication module main boards.
In any of the above technical solutions, it is preferable that the communication module motherboard is designed to be a standard PCI Express mini board card, and the NB-IOT module, the GPRS module, and the 4G module are all designed to be a PCI Express mini board card form, so that the Beidou terminal base plate is not changed when the communication module is replaced by the Beidou terminal base, and the communication module is compatible with the standard PCI Express mini board card on the market.
In any of the above technical solutions, it is preferable that the communication module motherboard designs a circuit according to different network communication chips, and the communication module motherboard leads out a VBAT signal, a UART signal, a USIM signal, a RESET signal, an LED _ NET signal, and a PWRKEY signal to external interfaces and provides 3 antenna interfaces: a main antenna interface, a GPS antenna interface, and a diversity receive antenna interface.
In any of the above technical solutions, preferably, the VBAT signal is led out from the external interface of the communication module motherboard to provide power for the communication module, so as to ensure normal operation of the communication module.
In any one of the above technical solutions, preferably, the UART signal is led out from the external interface of the communication module motherboard and used for data interaction between the Beidou terminal motherboard and the communication module, so that the communication module can realize various functions.
In any of the above technical solutions, preferably, the communication module motherboard leads out a USIM signal to an external interface for externally connecting a SIM card, so as to ensure that the module can register a mobile network.
In any of the above technical solutions, preferably, the RESET signal is led out from an external interface of the communication module main board to implement the RESET operation of the communication module and the RESET of the low-level module.
In any of the above technical solutions, preferably, the communication module motherboard leads out an LED _ NET signal and a PWRKEY signal to an external interface, where the LED _ NET signal represents a network state of the communication module, and the PWRKEY signal is used to control the module to power on and power off operations.
In any of the above technical solutions, preferably, the external interface of the communication module motherboard provides a main antenna interface for connecting to a GPRS antenna, provides a GPS antenna interface for connecting to a GPS antenna, and provides a diversity reception antenna interface as a reserved interface.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
the invention provides a Beidou terminal compatible with a plurality of network communication modules, which mainly comprises a Beidou terminal base plate, a communication module main plate and a PCI Express mini connector; the Beidou terminal machine bottom plate circuit is fixed, a fixed interface is provided to connect different communication module main boards, and the redesign of the Beidou terminal machine bottom plate cannot be caused when the communication module is replaced every time; a communication module mainboard is designed into a standard PCI Express mini board card, and an NB-IOT module, a GPRS module and a 4G module are all designed into a PCI Express mini board card form, so that a base plate of the Beidou terminal cannot be changed when the communication module is replaced, and meanwhile, the communication module is compatible with the standard PCI Express mini board card on the market; the PCI Express mini connector is a standard device and is used for connecting a Beidou terminal machine bottom plate and a communication module main plate. The Beidou terminal provided by the invention is simple in design structure, easy to realize, compatible with multiple network communication modules, capable of solving the technical problems of different manufacturers, different communication network systems, incompatibility, different driving codes and the like, and is suitable for updating and upgrading of products and capable of reducing the loss of manpower and material resources.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of a circuit board assembly structure of a Beidou terminal machine compatible with a multi-network communication module according to a preferred embodiment of the Beidou terminal machine of the invention;
fig. 2 is a schematic diagram of a communication module motherboard circuit design structure of the embodiment shown in fig. 1 of the multi-network communication module compatible beidou terminal according to the invention;
fig. 3 is a circuit diagram of a PCIE interface level conversion circuit of the beidou terminal compatible with multiple network communication modules according to the embodiment of the present invention shown in fig. 1.
Reference numerals:
1. the Beidou terminal machine bottom plate; 2. a PCI Express mini connector; 3. a communication module main board; 4. and a communication module.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to solve the problems that in the prior art, different communication modules and different communication network standards are used in a Beidou terminal, PCB packages of modules of different manufacturers and different communication network standards cannot be compatible, and driving codes required by different modules are different, the embodiment of the invention provides the Beidou terminal compatible with multiple network communication modules.
The structure and technical characteristics of the big dipper terminal set of this embodiment, and the implementation form of being compatible with multiple network communication modules are described below with reference to fig. 1 to 3.
In this embodiment, the beidou terminal machine, as shown in fig. 1, includes a beidou terminal machine motherboard, a PCI Express mini connector and a communication module motherboard. Wherein, the communication module mainboard design becomes standard PCI Express mini integrated circuit board, and NB-IOT module, GPRS module, 4G module all design and become PCI Express mini integrated circuit board form, through this integrated circuit board project organization, can not lead to the big dipper terminal machine bottom plate to change when making big dipper terminal machine change communication module, the communication module of compatible standard PCI Express mini integrated circuit board on the market simultaneously. The communication module mainboard is designed with a circuit according to different network communication chips, and the communication module mainboard leads VBAT signals, UART signals, USIM signals, RESET signals, LED _ NET signals and PWRKEY signals out of external interfaces and provides 3 antenna interfaces: a main antenna interface, a GPS antenna interface, and a diversity receive antenna interface.
In this embodiment, the VBAT signal is led out from the external interface of the communication module motherboard to provide a power supply for the communication module, so as to ensure normal operation of the communication module.
In this embodiment, the UART signal is drawn forth to the external interface of communication module mainboard and is used for big dipper terminal machine bottom plate and communication module to carry out data interaction, makes communication module realize various functions.
In this embodiment, the communication module motherboard has an external interface to lead out a USIM signal for externally connecting an SIM card, so as to ensure that the module can register a mobile network.
In this embodiment, the external interface of the communication module motherboard leads out a RESET signal to implement the RESET operation of the communication module and the RESET of the low-level module.
In this embodiment, the communication module motherboard leads out an LED _ NET signal and a PWRKEY signal from an external interface, where the LED _ NET signal represents a network state of the communication module, and the PWRKEY signal is used to control the module to power on and off.
In this embodiment, the external interface of the communication module motherboard provides a main antenna interface for connecting to the GPRS antenna, provides a GPS antenna interface for connecting to the GPS antenna, and provides a reserved interface for the diversity receiving antenna interface.
As shown in fig. 1, the Beidou terminal set of the embodiment mainly includes a Beidou terminal set motherboard, a PCI Express mini connector and a communication module motherboard; the Beidou terminal machine bottom board circuit is of a fixed structure, and a fixed interface is provided for connecting different communication module main boards; the communication module mainboard is of a standard PCI Express mini board card structure; the PCI Express mini connector is a standard device and is connected with a bottom board of the Beidou terminal machine and a communication module main board. The big dipper terminal machine that has above-mentioned design form can compatible many network communication module, has solved every communication module of changing of big dipper terminal machine, all will design whole big dipper terminal machine's circuit again, increases the cycle of development, and extravagant designer's static force has all led to the fact extravagant problem in material resources, the financial resources simultaneously.
According to the Beidou terminal compatible with the multi-network communication module, the circuit of the bottom plate of the Beidou terminal is fixed, a fixed interface is provided to connect different communication module main boards, and the redesign of the bottom plate of the Beidou terminal cannot be caused when the communication module is replaced every time; the communication module mainboard designs into standard PCI Express mini integrated circuit board, and NB-IOT module, GPRS module, 4G module all design into PCI Express mini integrated circuit board form, through the integrated circuit board design can make big dipper terminating machine when changing communication module, can not lead to big dipper terminating machine bottom plate to change, can be compatible the communication module of standard PCI Express mini integrated circuit board on the market simultaneously. The PCI Express mini connector is a standard device and is used for connecting a Beidou terminal machine bottom plate and a communication module main plate. The communication module mainboard is according to different network communication chip design circuit. VBAT signal, UART signal, USIM signal, RESET signal, LED _ NET signal and PWRKEY signal are LED out from the external interface of the communication module mainboard, and 3 antenna interfaces are provided: a main antenna interface, a GPS antenna interface, and a diversity receive antenna interface. The VBAT signal provides power for the communication module to ensure the normal work of the communication module; the UART signal is used for data interaction between a bottom plate of the Beidou terminal and the communication module, so that the communication module can realize various functions; the USIM signal is used for externally connecting an SIM card, and the module can be ensured to register a mobile network; the RESET signal can realize the RESET operation of the communication module and the RESET of the low-level module; the LED _ NET signal represents the communication module network status. The PWRKEY signal is used for controlling the module to start and shut down. The main antenna interface is used for connecting with a GPRS antenna. The GPS antenna interface is connected with a GPS antenna; the diversity receive antenna interface is reserved.
In specific implementation, as shown in a Beidou terminal machine circuit board assembly diagram of FIG. 1, when circuit board assembly is performed, a mini PCI Express Interface connector 2 is welded to a Beidou terminal machine bottom board 1, and a communication module main board 3 is clamped on the mini PCI Express Interface connector 2.
Further, as shown in the schematic circuit design diagram of the communication module motherboard of fig. 2, the power supply of the communication module 4 is provided by VBAT signal, a power line, a ground line, and a voltage of 4V; the UART signal is a signal transmission line provided by the communication module 4 and is used for data interaction between an external singlechip and the communication module 4; the USIM signal line is an external sim card. The RESET signal is a RESET signal line for resetting the communication module. The LED _ NET signal is used to indicate the network operating status. The PWRKEY signal is used for starting up and shutting down the communication module. The VBAT signal, UART signal, USIM signal, RESET signal, LED _ NET signal, and PWRKEY signal are all connected to the mini PCI Express Interface connector 2.
As shown in the level conversion circuit diagram of the PCIE interface of fig. 3, R1, R2, and Q1 form a triode switch circuit for PWRKEY signal level conversion, when PWRKEY is at high level, the 3 rd pin of U1 is at low level, otherwise, it is at high level. R3 and D1 form a level conversion circuit, the 3.3V level is converted to 1.8V, and when RX is 3.3V, the 11 th pin of U1 is 1.8V; when RX is 0V, the 11 th pin of U1 is 0V. R8, R10 and Q3 form a level conversion circuit, 1.8V is converted into 3.3V, and when the 13 th pin of U1 is 1.8V, TX is 3.3V; when pin 13 of U1 is 0V, TX is 0V. R12 and D2 form a light emitting diode driving circuit, and the light emitting diode is lighted at low level. R7, R9, R11, Q2, and C1 constitute a RESET circuit, and when RESET is high, U1 is RESET. The SIM card interface circuit is composed of R4, R5, R6, C1, C2, C3, C4, C5, C6, U2 and J1, and J1 is a SIM card base.
The big dipper terminating machine that this embodiment provided has solved every change a communication module among the prior art, all needs whole big dipper terminating machine circuit redesign and the technical problem of writing again to the code. The design structure is simple, the realization is easy, compatible many network communication modules can solve different producers, different communication network standard, can't be compatible, drive code technical problem such as difference, adapt to the renewal of product, reduce manpower and materials loss.
The foregoing is merely illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention; the above description is only for the specific embodiment of the present invention, and is not intended to limit the scope of the present invention; any modification, equivalent replacement, improvement and the like of the technical solution of the present invention by a person of ordinary skill in the art without departing from the design spirit of the present invention shall fall within the protection scope determined by the claims of the present invention.
Claims (10)
1. A Beidou terminal compatible with a plurality of network communication modules comprises a Beidou terminal base plate, and is characterized by also comprising a PCI Express mini connector and a communication module main plate; the Beidou terminal machine bottom plate circuit is of a fixed structure and provides a fixed interface; the communication module mainboard is of a standard PCI Express mini board card structure; the PCI Express mini connector is a standard device and is connected with the Beidou terminal machine bottom board and the communication module main board.
2. The Beidou terminal set compatible with multiple network communication modules according to claim 1, wherein the Beidou terminal set bottom board circuit is fixed and provides a fixed interface to connect different communication module main boards.
3. The Beidou terminal machine compatible with multi-network communication modules as set forth in claim 1, wherein the communication module mainboard is designed to be a standard PCI Express mini board card, and the NB-IOT module, the GPRS module and the 4G module are all designed to be in the form of the PCI Express mini board card, so that the Beidou terminal machine base plate is not changed when the communication module is replaced by the Beidou terminal machine through the design structure of the board cards, and meanwhile, the communication module machine is compatible with the standard PCI Express mini board card on the market.
4. The Beidou terminal machine compatible with multiple network communication modules according to claim 3, wherein the communication module mainboard is designed with circuits according to different network communication chips, the communication module mainboard is used for leading VBAT signal, UART signal, USIM signal, RESET signal, LED _ NET signal and PWRKEY signal out of external interfaces and providing 3 antenna interfaces: a main antenna interface, a GPS antenna interface, and a diversity receive antenna interface.
5. The Beidou terminal machine compatible with multiple network communication modules as set forth in claim 4, wherein VBAT signals are led out from the external interface of the communication module mainboard to provide power for the communication module, so as to ensure normal operation of the communication module.
6. The Beidou terminal machine compatible with multiple network communication modules as set forth in claim 4, wherein UART signals are led out from the external interface of the communication module mainboard and used for data interaction between the Beidou terminal machine mainboard and the communication module, so that the communication module can realize various functions.
7. The Beidou terminal machine compatible with multiple network communication modules as set forth in claim 4, wherein USIM signals are led out from an external interface of the communication module mainboard and used for externally connecting an SIM card, so that the module can register a mobile network.
8. The Beidou terminal machine compatible with multiple network communication modules according to claim 4, wherein a RESET signal is led out from an external interface of the communication module mainboard to realize the RESET operation of the communication module and the RESET of the low level module.
9. The Beidou terminal machine compatible with multi-network communication modules according to claim 4, wherein an LED _ NET signal and a PWRKEY signal are LED out from an external interface of the communication module mainboard, the LED _ NET signal represents a network state of the communication module, and the PWRKEY signal is used for controlling the module to be started and shut down.
10. The Beidou terminal machine compatible with multiple network communication modules according to claim 4, wherein the external interface of the communication module mainboard provides a main antenna interface for connecting with a GPRS antenna, provides a GPS antenna interface for connecting with a GPS antenna, and the diversity receiving antenna interface is a reserved interface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110445292.XA CN113422631A (en) | 2021-04-25 | 2021-04-25 | Beidou terminal machine compatible with multiple network communication modules |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110445292.XA CN113422631A (en) | 2021-04-25 | 2021-04-25 | Beidou terminal machine compatible with multiple network communication modules |
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Citations (6)
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|---|---|---|---|---|
| TWM286558U (en) * | 2005-11-01 | 2006-01-21 | E Move Technology Co Ltd | Fastening structure for electronic card |
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| US20100106984A1 (en) * | 2008-10-27 | 2010-04-29 | Sercomm Corporation | Shared interface device for power supply over ethernet (POE) and wireless network mdoule |
| CN201681334U (en) * | 2010-03-17 | 2010-12-22 | 东莞栢能电子科技有限公司 | Self-adaptive installation structure of Mini PCI-E equipment |
| US20130321241A1 (en) * | 2012-06-01 | 2013-12-05 | Grand-Tek Techonology., Ltd. | Interface card and antenna fixture structure of communication module |
| CN103677084A (en) * | 2012-09-04 | 2014-03-26 | 研祥智能科技股份有限公司 | Board card module |
-
2021
- 2021-04-25 CN CN202110445292.XA patent/CN113422631A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM286558U (en) * | 2005-11-01 | 2006-01-21 | E Move Technology Co Ltd | Fastening structure for electronic card |
| CN101359919A (en) * | 2007-08-01 | 2009-02-04 | 微星科技股份有限公司 | Wireless module switching device |
| US20100106984A1 (en) * | 2008-10-27 | 2010-04-29 | Sercomm Corporation | Shared interface device for power supply over ethernet (POE) and wireless network mdoule |
| CN201681334U (en) * | 2010-03-17 | 2010-12-22 | 东莞栢能电子科技有限公司 | Self-adaptive installation structure of Mini PCI-E equipment |
| US20130321241A1 (en) * | 2012-06-01 | 2013-12-05 | Grand-Tek Techonology., Ltd. | Interface card and antenna fixture structure of communication module |
| CN103677084A (en) * | 2012-09-04 | 2014-03-26 | 研祥智能科技股份有限公司 | Board card module |
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