CN214675153U - Airborne satellite communication terminal based on VPX framework - Google Patents
Airborne satellite communication terminal based on VPX framework Download PDFInfo
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- CN214675153U CN214675153U CN202121208534.5U CN202121208534U CN214675153U CN 214675153 U CN214675153 U CN 214675153U CN 202121208534 U CN202121208534 U CN 202121208534U CN 214675153 U CN214675153 U CN 214675153U
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Abstract
The utility model discloses an airborne satellite communication terminal based on VPX framework belongs to communication technology field. The terminal comprises an outer shell as a main body, wherein a front panel and a rear baffle are respectively arranged at the front end and the rear end of the outer shell, and radiating teeth are arranged on the outer wall of the outer shell; an intermediate plate parallel to the front panel and the rear baffle is arranged between the front panel and the rear baffle, and a plurality of cold plates which are perpendicular to the intermediate plate and are parallel to each other are arranged on the intermediate plate; each cold plate is fixedly connected with the corresponding access control unit, the corresponding security machine unit, the corresponding demodulation unit, the corresponding modulation unit and the corresponding 100M source unit through the locking strips; the front panel is provided with an external port which comprises a medium-frequency input port, a line-of-sight unit port and a medium-frequency output port. The utility model discloses it is small, the shock resistance is strong, and each functional unit integrated circuit board ization is easily replaced and the integrated level is high, and each integrated circuit board module real-time operating condition is visual to be favorable to the control.
Description
Technical Field
The utility model relates to the communication technology field, in particular to machine carries satellite communication terminal based on VPX framework.
Background
With the rapid development of the prior art, higher requirements are put on the stability, volume and integration of satellite communication equipment. An onboard satellite terminal based on the VPX architecture is a standard 3UVPX modem supporting satellite link wireless communication. At present, the size of the domestic airborne satellite communication terminal case is large, the internal modules are complex, the working state cannot be visualized, and the function integration level is low.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides an airborne satellite communication terminal based on VPX framework. The machine case at the terminal is small in size and strong in shock resistance, all the functional units are easy to replace in board-locking mode and high in integration level, and the real-time working state of each board-locking module is visual and beneficial to monitoring.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a VPX architecture-based airborne satellite communication terminal comprises an outer shell, wherein heat dissipation teeth are arranged on the outer wall of the outer shell; and the front and rear ends are respectively provided with a front panel and a rear baffle; an intermediate plate which is parallel to the front panel and the rear baffle and is positioned in the outer shell is also arranged between the front panel and the rear baffle, and five first cold plates which are vertical to the intermediate plate and are parallel to each other are inserted into one side of the intermediate plate; the five first cold plates are respectively provided with an access control unit, a security machine unit, a demodulation unit, a modulation unit and a 100M source unit; the outer wall of the front panel is provided with an external interface, the inner wall of the front panel is provided with an internal interface, the internal interface and the external interface are in one-to-one correspondence, and the front panel comprises a medium-frequency input port, a line-of-sight unit port and a medium-frequency output port;
the other side of the middle plate is provided with an input/output interface corresponding to each unit; the first input and output end of the access control unit is connected with the port of the line-of-sight unit, the second output end of the access control unit is connected with the first input end of the security unit, the third input end of the access control unit is connected with the second output end of the security unit, the fourth input end of the access control unit is connected with the first output end of the demodulation unit, and the fifth output end of the access control unit is connected with the first input end of the modulation unit; a second output end of the modulation unit is connected with the intermediate frequency output port, and a third input end of the modulation unit is connected with a first output end of the 100M source unit; a second output end of the 100M source is connected with a second input end of the demodulation unit; and the third input end of the demodulation unit is connected with the intermediate frequency input port.
Furthermore, a second cold plate is arranged beside each first cold plate, and a health management module is arranged in each second cold plate; the access control unit, the secrecy machine unit, the demodulation unit, the modulation unit and the 100M source unit are respectively and correspondingly connected with the health management module on the second cold plate beside the access control unit, the secrecy machine unit, the demodulation unit, the modulation unit and the 100M source unit.
Further, the health management module comprises a processing unit, a temperature sensor, a voltage sensor, a current sensor and a memory; the temperature sensor, the voltage sensor, the current sensor and the memory are all connected with the processing unit; the memory and the second cold plate are connected through a plug interface.
The utility model adopts the beneficial effect that above-mentioned technical scheme produced lies in:
1. the utility model discloses a standard 3UVPX framework for the quick-witted case volume is littleer, the shock resistance is stronger and dismouting maintenance is more convenient.
2. The utility model discloses each functional unit all is furnished with the health management module, can store functional unit's state information, and real-time supervision integrated circuit board operating condition in time discovers and fixes a position quick-witted case trouble rapidly.
3. The utility model discloses with access control, modem, secret, clock function design respectively on the functional unit integrated circuit board of difference for each functional unit integrated circuit board is more independent, multiple functional, the integrated level is high and external interface is abundant, the various machine platform that carries of better adaptation of being convenient for.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is an electrical schematic diagram of the present invention.
Fig. 3 is an electrical schematic diagram of the health management module of the present invention.
In the figure: 1. front panel, 2, middle panel, 3, access control unit, 4, security machine unit, 5, demodulation unit, 6, modulation unit, 7, 100M unit.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 to 3, an airborne satellite communication terminal based on a VPX architecture includes an outer shell, where heat dissipation teeth are provided on an outer wall of the outer shell; and the front and rear ends are respectively provided with a front panel and a rear baffle; an intermediate plate 2 which is parallel to the front panel 1 and the rear baffle and is positioned in the outer shell is also arranged between the front panel 1 and the rear baffle, and a plurality of first cold plates which are vertical to the intermediate plate and are parallel to each other are inserted into one side of the intermediate plate; an access control unit, a secrecy machine unit, a demodulation unit, a modulation unit and a 100M source unit are respectively arranged in the first cold plates; the outer wall of the front panel is provided with an external interface, the inner wall of the front panel is provided with an internal interface, the internal interface and the external interface are in one-to-one correspondence, and the front panel comprises a medium-frequency input port, a line-of-sight unit port and a medium-frequency output port;
the other side of the middle plate is provided with an input/output interface corresponding to each unit; the first input and output end of the access control unit is connected with a line-of-sight unit port, the second output end of the access control unit 3 is connected with the first input end of the security unit, the third input end of the access control unit is connected with the second output end of the security unit, the fourth input end of the access control unit is connected with the first output end of the demodulation unit, and the fifth output end of the access control unit is connected with the first input end of the modulation unit; a second output end of the modulation unit is connected with the intermediate frequency output port, and a third input end of the modulation unit is connected with a first output end of the 100M source unit; a second output end of the 100M source is connected with a second input end of the demodulation unit; and the third input end of the demodulation unit is connected with the intermediate frequency input port.
The embodiment also comprises a plurality of second cold plates internally provided with the health management modules; the plurality of health management modules correspond to the access control unit, the crypto unit 4, the demodulation unit 5, the modulation unit 6 and the 100M source unit 7 one by one, and the second cold plate is positioned at the inner side corresponding to the first cold plate and monitors the first cold plate in real time; the health management module comprises a CPU, and a temperature sensor, a voltage sensor, a current sensor and a memory which are all connected with the CPU; the memory is movably connected with the second cold plate.
The external interface of the front panel sends the received intermediate frequency input signal to the demodulation unit; the demodulation unit carries out frequency conversion, frequency sweep, capture, timing, carrier recovery and decoding processing on the received data and sends the generated synchronous data to the access control unit; the access control unit carries out frame searching processing on the received synchronous data, then sends the password data after frame searching to the crypto unit for decryption, the crypto unit sends the decrypted clear code data to the access control unit, and the access control unit sends the clear code data to the airborne visual range unit through the visual range unit port of the front panel after carrying out synchronous and asynchronous conversion on the clear code data, so that the processing of the defense forward link is completed.
The front panel sends the received sight distance synchronous data to the access control unit through the sight distance unit port for frame searching processing, then sends the clear code data after frame searching to the secrecy machine unit for encryption, the secrecy machine unit sends the encrypted code data to the access control unit, the access control unit sends the code data to the modulation unit, the modulation unit carries out scrambling, coding, mapping, forming and frequency conversion processing on the received data, and the generated analog signal is sent out through the intermediate frequency output port of the front panel.
The 100M source unit comprises a 4-branch 100M source and is used for respectively sending the generated 4 paths of 100M analog signals to the demodulation unit and the modulation unit; and correcting the frequency offset of the 100M source caused by aging through the adjustment of a voltage control end thereof.
The health management module is mainly used for detecting information such as voltage, current and temperature of each board card in real time and managing power supplies of the board cards. The voltage sensor, the current sensor and the temperature sensor store the measured data into the memory card through the processing unit for later playback. The CPU in fig. 3 is the processing unit.
The access control unit provides two FPGA program functions of a JTAG chain and a LAN port, and has the functions of real-time flow detection of each interface, real-time storage of each abnormal state, state playback and the like.
The main function of the security unit is to encrypt and decrypt data inside the device, so that the security of information communication is ensured.
The demodulation unit performs frequency conversion, frequency sweep, capture, timing, carrier recovery, decoding and other processing on the received analog data, and sends the generated synchronous data to the access control unit 1. All rates common in the forward direction can be accommodated by the configuration of the DDS frequency control word.
The power supply unit comprises 1 standard VPX3U power supply and outputs two paths of power supplies of 5V and 12V. For the power supply of the access control unit, the crypto unit, the demodulation unit, the modulation unit and the 100M source unit. The power supply unit meets the airborne GJB-151B electromagnetic compatibility standard and has 50ms power-down protection, reverse connection protection and short-circuit protection.
Claims (3)
1. An airborne satellite communication terminal based on a VPX framework comprises an outer shell and is characterized in that heat dissipation teeth are arranged on the outer wall of the outer shell; and the front and rear ends are respectively provided with a front panel and a rear baffle; an intermediate plate which is parallel to the front panel and the rear baffle and is positioned in the outer shell is also arranged between the front panel and the rear baffle, and five first cold plates which are vertical to the intermediate plate and are parallel to each other are inserted into one side of the intermediate plate; the five first cold plates are respectively provided with an access control unit, a security machine unit, a demodulation unit, a modulation unit and a 100M source unit; the outer wall of the front panel is provided with an external interface, the inner wall of the front panel is provided with an internal interface, the internal interface and the external interface are in one-to-one correspondence, and the front panel comprises a medium-frequency input port, a line-of-sight unit port and a medium-frequency output port;
the other side of the middle plate is provided with an input/output interface corresponding to each unit; the first input and output end of the access control unit is connected with the port of the line-of-sight unit, the second output end of the access control unit is connected with the first input end of the security unit, the third input end of the access control unit is connected with the second output end of the security unit, the fourth input end of the access control unit is connected with the first output end of the demodulation unit, and the fifth output end of the access control unit is connected with the first input end of the modulation unit; a second output end of the modulation unit is connected with the intermediate frequency output port, and a third input end of the modulation unit is connected with a first output end of the 100M source unit; a second output end of the 100M source is connected with a second input end of the demodulation unit; and the third input end of the demodulation unit is connected with the intermediate frequency input port.
2. A VPX architecture based on-board satellite communication terminal according to claim 1, wherein a second cold plate is provided next to each first cold plate, each second cold plate having a health management module provided therein; the access control unit, the secrecy machine unit, the demodulation unit, the modulation unit and the 100M source unit are respectively and correspondingly connected with the health management module on the second cold plate beside the access control unit, the secrecy machine unit, the demodulation unit, the modulation unit and the 100M source unit.
3. The VPX architecture based on-board satellite communication terminal of claim 2, wherein the health management module comprises a processing unit, a temperature sensor, a voltage sensor, a current sensor and a memory; the temperature sensor, the voltage sensor, the current sensor and the memory are all connected with the processing unit; the memory and the second cold plate are connected through a plug interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121208534.5U CN214675153U (en) | 2021-06-01 | 2021-06-01 | Airborne satellite communication terminal based on VPX framework |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121208534.5U CN214675153U (en) | 2021-06-01 | 2021-06-01 | Airborne satellite communication terminal based on VPX framework |
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| Publication Number | Publication Date |
|---|---|
| CN214675153U true CN214675153U (en) | 2021-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121208534.5U Active CN214675153U (en) | 2021-06-01 | 2021-06-01 | Airborne satellite communication terminal based on VPX framework |
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| Country | Link |
|---|---|
| CN (1) | CN214675153U (en) |
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2021
- 2021-06-01 CN CN202121208534.5U patent/CN214675153U/en active Active
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