CN102169327A

CN102169327A - Confidential algorithm control system of static satellite simulator

Info

Publication number: CN102169327A
Application number: CN 201010546898
Authority: CN
Inventors: 刘收; 周龙; 丁志秀; 范丽
Original assignee: BEIJING AEROSPACE MEASUREMENT AND CONTROL TECHNOLOGY DEVELOPMENT Co Ltd
Current assignee: BEIJING AEROSPACE MEASUREMENT AND CONTROL TECHNOLOGY DEVELOPMENT Co Ltd
Priority date: 2010-11-16
Filing date: 2010-11-16
Publication date: 2011-08-31
Anticipated expiration: 2030-11-16
Also published as: CN102169327B

Abstract

The invention discloses a confidential algorithm control system of a static satellite simulator, comprising an external signal conditioning and switchover module (1), a signal interface module (2) with an algorithm needing confidentiality, a confidential calculation micro control unit (MCU) module (3), a user interface module (4), an ARM (Advanced RISC Machines) module (6), a PFGA (Field-Programmable Gate Array) module (7) and a simulator liquid crystal display (LCD) module (5). In the system, the special confidential calculation MCU is provided, an independent user interface is opened, software and hardware separation in a function module is realized, and complicated and confidential mathematical calculation programs can be securely controlled in the hands of a user so that the confidentiality is strong, the development is fast and the debugging is convenient.

Description

Static satellite simulator secret algorithm control system

Technical field

The present invention relates to the satellite-signal analogue technique, relate in particular to the algorithm secrecy system of the static Satellite Simulation device of a kind of portable multi-function, belong to computer automatic analysis and control field.

Background technology

Satellite control system is one of core system of satellite, in development process or in the whole star static test uniting and adjustment process, needs supporting uphole equipment to carry out testing experiment and emulation.Static satellite simulator is one of crucial supporting uphole equipment in the satellite development process, is developed by the third party usually.Simulator needs the various types of signal of real simulation satellite as far as possible, wherein signals such as simulated solar, the digital sun relate to large amount of complex mathematical model or algorithm in the satellite system, and these algorithms are normally maintained secrecy, promptly not open to the research institute (third party unit) of satellite simulator, all make troubles for the research institute of user and satellite simulator like this.

Summary of the invention

The invention provides a kind of static satellite simulator secret algorithm control system, in order to open independently secret algorithm microcontroller interface is provided for portable static satellite simulator user, after the user only need design the program of measured target simply once more, writing the calculating MCU module hardware of maintaining secrecy and getting final product, saving the development time.

Static satellite simulator secret algorithm control system, comprise Signal interface module (2), maintain secrecy calculating microcontroller (MCU) module (3), Subscriber Interface Module SIM (4), ARM module (6), PFGA module (7) and simulator liquid crystal display (LCD) module (5) module that external signal conditioning interconnecting module (1), algorithm need be maintained secrecy, wherein

External signal conditioning interconnecting module (1) links to each other with Signal interface module (2), ARM module (6) and the FPGA module (7) that algorithm need be maintained secrecy respectively, the Signal interface module that algorithm need be maintained secrecy (2) links to each other with the calculating microcontroller (MCU) (3) of maintaining secrecy, the calculating microcontroller (MCU) (3) of maintaining secrecy links to each other with Subscriber Interface Module SIM (4), the calculating microcontroller (MCU) (3) of maintaining secrecy links to each other with ARM module (6), ARM module (6) links to each other with simulator liquid crystal display (LCD) (5), ARM module (6) links to each other with FPGA module (7), by bus on chip communication;

The signal that algorithm need be maintained secrecy is nursed one's health interconnecting module (1) switching by external signal and is sent into the Signal interface module (2) that algorithm need be maintained secrecy; Mutual with ARM module (6) behind external signal conditioning interconnecting module (1); Directly produce and export by FPGA module (7) through external signal conditioning interconnecting module (1) conditioning switching; The signal that algorithm need be maintained secrecy is nursed one's health interconnecting module (1) by external signal and is sent into the Signal interface module (2) that algorithm need maintain secrecy and nurse one's health; The Signal interface module that algorithm need be maintained secrecy (2) is nursed one's health with the signal that the calculating microcontroller (MCU) (3) of maintaining secrecy is done secret computing to needs, and sends into the calculating microcontroller (MCU) (3) of maintaining secrecy and calculate; By open Subscriber Interface Module SIM (4) secret algorithm is write the calculating microcontroller (MCU) (3) of maintaining secrecy; The calculating microcontroller (MCU) (3) of maintaining secrecy is sent secret result of calculation into ARM module (6); ARM module (6) goes up secret result of calculation and shows at simulator liquid crystal display LCD (5).

Beneficial effect of the present invention:

Static satellite simulator secret algorithm control system, be mainly used in simulated solar, the digital sun etc. in the satellite system and relate to the debugging of large amount of complex, mathematical model signal, simulator provides dedicated secret to calculate the open independent user interface of MCU, but this functional module software and hardware separates, complicated mathematical computations program security control of maintaining secrecy in user's hand, strong security, exploitation is quick, debugging is convenient.

Description of drawings

Fig. 1 is the static satellite simulator secret algorithm of the present invention control system synoptic diagram.

Embodiment

Below in conjunction with accompanying drawing specific implementation process of the present invention is further described in detail.

See also Fig. 1, this figure is the principle of work synoptic diagram of the static satellite simulator secret algorithm of the present invention control system, as seen from the figure, satellite simulator secret algorithm control system of the present invention mainly comprises Signal interface module 2, the compositions such as calculating microcontroller (MCU) module 3, Subscriber Interface Module SIM 4, centralized control unit (ARM module 6 and PFGA module 7 and peripheral circuit thereof such as LCD module 5) module of maintaining secrecy that external signal conditioning interconnecting module 1, algorithm need be maintained secrecy, wherein

External signal conditioning interconnecting module 1 links to each other with Signal interface module 2, ARM module 6 and the FPGA module 7 that algorithm need be maintained secrecy, and is the input-output unit of whole static satellite simulator institute simulating signal; The signal that the part algorithm need be maintained secrecy is sent into the Signal interface module 2 that algorithm need be maintained secrecy by 1 switching of external signal conditioning interconnecting module; Mutual with the ARM module after 1; Directly produce and export by 7 through 1 conditioning switching.

The signal that algorithm need be maintained secrecy is sent into the Signal interface module 2 that algorithm need maintain secrecy by external signal conditioning interconnecting module 1 and is nursed one's health; The Signal interface module 2 that algorithm need be maintained secrecy with maintain secrecy to calculate microcontroller (MCU) 3 and link to each other, be responsible for specially needs are done the signal of secret computing and nurse one's health, and send into the calculating microcontroller (MCU) of maintaining secrecy and calculate;

Calculating microcontroller (MCU) 3 that maintain secrecy links to each other with Subscriber Interface Module SIM 4, and the user can write secret algorithm to maintain secrecy and calculate microcontroller (MCU) 3 by open Subscriber Interface Module SIM 4;

Calculating microcontroller (MCU) 3 that maintain secrecy links to each other with ARM module 6, secret result of calculation can be sent into ARM module 6;

ARM module 6 links to each other with simulator liquid crystal display (LCD) 5, secret result of calculation can be shown on LCD5.

ARM module 6 links to each other with FPGA module 7, and the two is by bus on chip communication, collaborative work.

The groundwork process is:

Step 1: the Subscriber Interface Module SIM 4 of user by independent open writes the secret algorithm of digital sun signal and simulated solar signal to maintain secrecy and calculates microcontroller (MCU) 3;

Step 2: digital sun signal and simulated solar signal are sent into the Signal interface module 2 that algorithm need be maintained secrecy through external signal conditioning interconnecting module 1;

Step 3: digital sun signal and simulated solar signal are nursed one's health in the Signal interface module 2 that algorithm need be maintained secrecy, and nurse one's health into the voltage analog form by the gray code signal form;

Step 4: digital sun signal and simulated solar signal through conditioning are sent into the calculating microcontroller (MCU) 3 of maintaining secrecy, calculate microcontroller (MCU) 3 interior AD modules gathers by maintaining secrecy, and the secret algorithm that writes through the user carries out computing and obtains net result, angle value;

Step 5: the angle value result who obtains through computing sends into ARM module 6, and according to the programmed instruction in the storer in the ARM module 6, the result shows by simulator liquid crystal display (LCD) 5, also can be transferred to host computer by the spreading result in the ARM module 6.

Secret algorithm control method core is to be used for the secret MCU of calculating module 3 to link to each other with Subscriber Interface Module SIM 4, and the open interface that the user passes through to be provided is installing to 3 under the algorithm of need to be keep secret; Maintain secrecy to calculate MCU module 3 and link to each other with ARM module 6, results send into ARM module 6 and show through the LCD module after calculating MCU module 3 by maintaining secrecy and calculating.Be mainly used in the large amount of complex of concerning security matters such as simulated solar, the digital sun in the satellite system, third party's debugging of mathematical model signal.

Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.

Claims

1. static satellite simulator secret algorithm control system, comprise external signal conditioning interconnecting module (1), the Signal interface module that algorithm need be maintained secrecy (2), maintain secrecy and calculate microcontroller (MCU) module (3), Subscriber Interface Module SIM (4), ARM module (6), PFGA module (7) and simulator liquid crystal display (LCD) module (5) module, wherein, the Signal interface module (2) that external signal conditioning interconnecting module (1) need be maintained secrecy with algorithm respectively, ARM module (6) and FPGA module (7) link to each other, the Signal interface module that algorithm need be maintained secrecy (2) links to each other with the calculating microcontroller (MCU) (3) of maintaining secrecy, the calculating microcontroller (MCU) (3) of maintaining secrecy links to each other with Subscriber Interface Module SIM (4), the calculating microcontroller (MCU) (3) of maintaining secrecy links to each other with ARM module (6), ARM module (6) links to each other with simulator liquid crystal display (LCD) (5), ARM module (6) links to each other with FPGA module (7), by bus on chip communication.

2. static satellite simulator secret algorithm control system as claimed in claim 1, it is characterized in that: the course of work of this system is: the signal that algorithm need be maintained secrecy is nursed one's health interconnecting module (1) switching by external signal and is sent into the Signal interface module (2) that algorithm need be maintained secrecy; Mutual with ARM module (6) behind external signal conditioning interconnecting module (1); Directly produce and export by FPGA module (7) through external signal conditioning interconnecting module (1) conditioning switching; The signal that algorithm need be maintained secrecy is nursed one's health interconnecting module (1) by external signal and is sent into the Signal interface module (2) that algorithm need maintain secrecy and nurse one's health; The Signal interface module that algorithm need be maintained secrecy (2) is nursed one's health with the signal that the calculating microcontroller (MCU) (3) of maintaining secrecy is done secret computing to needs, and sends into the calculating microcontroller (MCU) (3) of maintaining secrecy and calculate; By open Subscriber Interface Module SIM (4) secret algorithm is write the calculating microcontroller (MCU) (3) of maintaining secrecy; The calculating microcontroller (MCU) (3) of maintaining secrecy is sent secret result of calculation into ARM module (6); ARM module (6) goes up secret result of calculation and shows at simulator liquid crystal display LCD (5).