CN208399688U - A kind of Beidou subscriber machine of compatible IC card and deciphering chip - Google Patents
A kind of Beidou subscriber machine of compatible IC card and deciphering chip Download PDFInfo
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- CN208399688U CN208399688U CN201821297705.4U CN201821297705U CN208399688U CN 208399688 U CN208399688 U CN 208399688U CN 201821297705 U CN201821297705 U CN 201821297705U CN 208399688 U CN208399688 U CN 208399688U
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- card
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- deciphering
- deciphering chip
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Abstract
The utility model relates to Beidou communication equipment technical fields, and in particular to a kind of Beidou subscriber machine of compatible IC card and deciphering chip.Including host, encryption/decryption module, control system, host is provided with baseband chip, and baseband chip is equipped with IC card interface, and provides switch-over control signal by a GPIO pin on baseband chip；Encryption/decryption module is connect by electric connector with host, is equipped with IC card and deciphering chip, is additionally provided with multiplexer chip；Set-up of control system issues IC card and deciphering chip switching command on the control device, by control system, provides high level or low level to control switch-over control signal line, and then realize the switching and use to IC card and deciphering chip.The utility model solves baseband chip in the case where only one IC card interface, can install IC card and deciphering chip simultaneously, and can switch by software, what deciphering chip can be convenient removes special keeping.
Description
Technical field
The utility model relates to Beidou communication equipment technical fields, and in particular to a kind of compatible IC card and deciphering chip
Beidou subscriber machine.
Background technique
Existing Beidou RD baseband chip only has 1 IC card interface, and Beidou equipment will use IC card or deciphering chip (replaces
For IC card)；Beidou subscriber machine based on the research and development of this Beidou RD baseband chip can only install IC card or deciphering chip, can not
A use is installed and selected simultaneously, and switching can only dismantle equipment every time, dismount IC card or deciphering chip (deciphering chip
It can only be dismantled every time with electric iron, repeatedly disassembly can damage chip and circuit board, therefore will can not very easily add solution
Close chip removes).
As shown in Figure 1, existing technology is that IC card and deciphering chip are all mounted on mainboard, and mainboard is mounted on equipment
Inside, deciphering chip can not easily remove keeping.And IC card and deciphering chip can only install one simultaneously, can not do
To convenient switching；And in practical applications, some tasks need to have some tasks to need deciphering chip using IC card, cut
Change very inconvenient, and deciphering chip cannot easily remove keeping and (electric iron can only be used encryption and decryption core
Piece removes).
Utility model content
The utility model provides the Beidou subscriber machine of a kind of compatible IC card and deciphering chip, in baseband chip only
In the case where one IC card interface, IC card and deciphering chip can be installed simultaneously, and can switch by software.
The technical solution for realizing the object of the invention is the Beidou subscriber machine of a kind of compatible IC card and deciphering chip, feature
It is, including host, encryption/decryption module, control system,
The host is provided with mainboard, which is provided with baseband chip, which is equipped with IC card interface, and
A GPIO pin on baseband chip is for providing switch-over control signal；
The encryption/decryption module is connect by electric connector with host, and IC card and encryption and decryption are installed in the encryption/decryption module
Chip is additionally provided with multiplexer chip in the encryption/decryption module；
The IC card interface includes the signal wire of reset signal, clock signal and data-signal, be used for transmission reset signal,
Clock signal and data-signal, wherein
The reset signal signal wire is connected with IC card and deciphering chip, the clock signal line and IC card and encryption and decryption
Chip is connected, and uses reset signal and clock signal for IC card and deciphering chip simultaneously；
The data-signal signal wire is connected with the multiplexer chip, and the multiplexer chip is by multiplexed data signal
With for two-way, first via data signal line is used for IC card, and the second circuit-switched data signal wire is used for deciphering chip；
The control system embeds on the control device, the communication port and base band which passes through the host
Chip connection；IC card and deciphering chip switching command can be issued by the control system, baseband chip detects IC card
When controlling signal with deciphering chip switching command, which is set to high level for switch-over control signal by GPIO pin
Or low level；
When switch-over control signal is low level, the data signal line connection of the first via data signal line and deciphering chip
It is logical, it disconnects with the data signal line of IC card, is just switched to using deciphering chip at this time；
When switch-over control signal is high level, the data signal line connection of the second circuit-switched data signal wire and IC card, with
The data signal line of deciphering chip disconnects, and is just switched to using IC card at this time.
Further, the control equipment includes the end PC or other special equipments.
The utility model compared with the existing technology, has the advantage that
1, it solves baseband chip in the case where only one IC card interface, IC card and encryption and decryption core can be installed simultaneously
Piece, and can be switched by software；
2, what deciphering chip can be convenient removes special keeping.
Detailed description of the invention
Fig. 1 is the board structure of circuit schematic diagrames of the installation of deciphering chip and IC card under prior art state；
Fig. 2 is the utility model structure diagram；
Fig. 3 is the utility model IC card partial circuit diagram；
Fig. 4 is the utility model deciphering chip partial circuit diagram；
Fig. 5 is the utility model IC card/deciphering chip switching circuit figure；
Fig. 6 is the utility model encryption/decryption module connector circuit figure；
Fig. 7 is the utility model principle block diagram.
Specific embodiment
To make the objectives, technical solutions and advantages of the present invention clearer, With reference to embodiment
And referring to attached drawing, the utility model is further described.It should be understood that these descriptions are merely illustrative, and do not really want
Limit the scope of the utility model.In addition, in the following description, descriptions of well-known structures and technologies are omitted, to avoid not
Necessarily obscure the concept of the utility model.
A kind of Beidou subscriber machine of compatible IC card and deciphering chip disclosed in the present embodiment, Fig. 2 are the utility model knot
Structure schematic diagram, the utility model as shown in Figure 2 devise encryption/decryption module 20, and IC card 22 and deciphering chip 21 are all mounted on
In encryption/decryption module 20, encryption/decryption module 20 passes through an electric connector 23 and the north for being provided with IC card 22 and deciphering chip 21
The user's machine host 10 that struggles against connects, and the installation and removal that encryption/decryption module 20 can be convenient, such deciphering chip 21 can be square
Just remove keeping.
Fig. 3-6 is the circuit diagram of the present embodiment, and Fig. 7 is the functional block diagram of the present embodiment.
The Beidou subscriber machine of a kind of compatible IC card and deciphering chip includes host, encryption/decryption module, control system, described
Host is provided with baseband chip, which is equipped with IC card interface, and a GPIO pin on baseband chip is used for
Switch-over control signal is provided；The encryption/decryption module is connect by electric connector with host, installs IC card in the encryption/decryption module
And deciphering chip, multiplexer chip is additionally provided in the encryption/decryption module；The control system is embedded in control equipment
On, which is connect by the communication port of the host with baseband chip；IC can be issued by the control system
Card and deciphering chip switching command, when baseband chip detects IC card and deciphering chip switching command control signal, the base
Switch-over control signal is set to high level or low level by GPIO pin by microarray strip, and then controls IC card and deciphering chip
Connection is that switching uses.
IC card interface on baseband chip as shown in Figure 7 include reset, 3 signal wires of clock and data, and by base band core
One GPIO pin of on piece provides switch-over control signal, which is connected with IC card and deciphering chip, this when
Clock signaling interface is connected with IC card and deciphering chip, makes reset signal and clock signal for IC card and deciphering chip simultaneously
With.The design will reset and clock signal is in parallel, while use for IC card and deciphering chip, and be transmitted on data signal line
Data have uniqueness, the design used multiplexer chip (SN74CB3Q3257) by data-signal multiplexing be 2 tunnels,
(data 1) are used for IC card all the way, another way uses (data 2) for deciphering chip, the switching control letter that baseband chip is drawn
Number (using an I/O pin as switching command control signal wire, I/O pin be can be controlled by internal processes on baseband chip it is defeated
The pin of low and high level out) it is used as control signal wire, this control signal wire can be in the IC card/plus solution that control device software issues
High level or low level are provided under the control of close chip switching command.When control signal wire foot is low level, first number
According to the data signal line connection of signal wire and deciphering chip, is disconnected with the data signal line of IC card, be just switched to use at this time
Deciphering chip；When control signal wire is high level, the data signal line connection of the second circuit-switched data signal wire and IC card, with
The data signal line of deciphering chip disconnects, and is just switched to using IC card at this time.The reset signal and clock signal of IC card interface
It is used simultaneously for IC card and deciphering chip, data-signal needs to switch over use by multiplexing chip.
IC card and deciphering chip can be thus mounted in encryption/decryption module simultaneously, use the control of control equipment
Software uses IC card or deciphering chip to switch selection；IC card and deciphering chip are all mounted on mainboard in the prior art,
And mainboard is mounted on inside host, must just be dismantled host if necessary to installing and dismounting IC card or deciphering chip.This implementation
IC card and deciphering chip are all mounted in encryption/decryption module in example, and encryption/decryption module on electric connector and host by being connected
It connecing, then deciphering chip is fixed on host by 4 screws, when disassembly, only needs to remove on this 4 screws,
Without host is opened.Encryption/decryption module can also be taken out conveniently in the case where not dismantling complete machine, facilitate encryption and decryption
The keeping of chip.
It should be understood that the above-mentioned specific embodiment of the utility model is used only for exemplary illustration or explains this reality
With novel principle, without constituting limitations of the present invention.Therefore, in the spirit and scope without departing from the utility model
In the case of any modification, equivalent substitution, improvement and etc. done, should be included within the scope of protection of this utility model.In addition,
The appended claims for the utility model are intended to cover to fall into attached claim scope and boundary or this range and boundary
Whole change and modification in equivalent form.
Claims (2)
1. a kind of Beidou subscriber machine of compatible IC card and deciphering chip, which is characterized in that including host, encryption/decryption module, control
System processed；
The host is provided with mainboard, which is provided with baseband chip, which is equipped with IC card interface, and base band
A GPIO pin on chip is for providing switch-over control signal；
The encryption/decryption module is connect by electric connector with host, and IC card and deciphering chip are installed in the encryption/decryption module,
Multiplexer chip is additionally provided in the encryption/decryption module；
The IC card interface includes the signal wire of reset signal, clock signal and data-signal, is used for transmission reset signal, clock
Signal and data-signal, wherein
The reset signal signal wire is connected with IC card and deciphering chip, the clock signal line and IC card and deciphering chip
It is connected, uses reset signal and clock signal for IC card and deciphering chip simultaneously；
The data-signal signal wire is connected with the multiplexer chip, which is by data-signal multiplexing
Two-way, first via data signal line are used for IC card, and the second circuit-switched data signal wire is used for deciphering chip；
The control system embeds on the control device, the communication port and baseband chip which passes through the host
Connection；IC card and deciphering chip switching command can be issued by the control system, baseband chip detects IC card and adds
When deciphering chip switching command controls signal, which is set to high level or low for switch-over control signal by GPIO pin
Level；
When switch-over control signal is low level, the data signal line connection of the first via data signal line and deciphering chip,
It disconnects with the data signal line of IC card, is just switched to using deciphering chip at this time；
When switch-over control signal is high level, the data signal line connection of the second circuit-switched data signal wire and IC card is solved with adding
The data signal line of close chip disconnects, and is just switched to using IC card at this time.
2. the Beidou subscriber machine of a kind of compatible IC card and deciphering chip according to claim 1, which is characterized in that described
Controlling equipment includes the end PC or mobile terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821297705.4U CN208399688U (en) | 2018-08-13 | 2018-08-13 | A kind of Beidou subscriber machine of compatible IC card and deciphering chip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821297705.4U CN208399688U (en) | 2018-08-13 | 2018-08-13 | A kind of Beidou subscriber machine of compatible IC card and deciphering chip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208399688U true CN208399688U (en) | 2019-01-18 |
Family
ID=65129709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821297705.4U Active CN208399688U (en) | 2018-08-13 | 2018-08-13 | A kind of Beidou subscriber machine of compatible IC card and deciphering chip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208399688U (en) |
-
2018
- 2018-08-13 CN CN201821297705.4U patent/CN208399688U/en active Active
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