Method for generating machine identification code of flat panel detector and extended application method

A flat-panel detector and machine recognition technology, which is applied in the extended application field, can solve the problems that the detector does not have physical correlation, cannot count the detector's personality information, etc., and achieve the effect of greatly expanding the applicability

Active Publication Date: 2011-02-02
CARERAY DIGITAL MEDICAL TECH CO LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] Existing encryption for detectors generally adopts host software encryption technology. Some image formats are RAW, and some are encrypted, but the algorithm used has no physical correlation with the detector itself; therefore, it is impossible to use these image collections to count detectors. personal information

Method used

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  • Method for generating machine identification code of flat panel detector and extended application method
  • Method for generating machine identification code of flat panel detector and extended application method
  • Method for generating machine identification code of flat panel detector and extended application method

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specific Embodiment

[0028] The detector of this embodiment includes an FPGA chip. The FPGA adopts Xilinx's Spartan-3A series chip. It has a Device DNA serial number with an initial length of 57 bits. The machine identification code generation method is implemented by a program. , First obtain the DNA serial number of the FPGA through the hardware primitives, store it in the 0-56 bits of the 64-bit DNA register, and then convert the DNA serial number into the detector's machine identification code according to the following logical operation formula:

[0029] The conversion formula is:

[0030] Machine_ID=F(DNA)=((DNA<<5)&0xffff0000)|((DNA<<2)&0x00001fff))^0xa5a55a5a;

[0031] In the formula, DNA represents the DNA sequence number of FPGA, F 1 (DNA) is the machine identification code of the detector.

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Abstract

The invention relates to a method for generating a machine identification code of a flat panel detector. The flat panel detector is provided with at least one FPGA (field programmable gate array) chip used for processing image acquisition affairs on hardware, and each FPGA chip has an only device DNA sequence number for differing from other FPGA chips. The method for generating the machine identification code comprises the following steps of: acquiring the device DNA sequence number of a corresponding FPGA chip; converting the device DNA sequence number into a sequence which differs from the device DNA sequence number; and deriving a system license, an image ID and a log ID by using the machine identification code as an identity proof of the detector, wherein the system license is used for preventing illegal copying of a system, the image ID is used for indexing an image management database of the detector, the log ID is used for indexing a log database of the detector, and the detector is integrated with a background database of the detector established by an operation in charge, and has higher extended utility.

Description

Technical field [0001] The invention relates to a medical flat panel detector and a detection system thereof, in particular to a security encryption method for the detector and the extended application of the method on the detection system. Background technique [0002] The detector system is mainly composed of X-ray generator, flat panel detector and PC. When the detector is working normally, the X-ray generator emits a specified dose of X-rays through the synchronization control signal. The X-rays pass through the patient and are projected onto the flat-panel detector. After that, the flat-panel detector performs a series of energy conversion processes. The exposure image corresponding to the patient's physiological information is generated and sent to the PC for post-processing and display, thereby helping the doctor to judge the cause of the patient. The same type of detector system can use unified software, but because it does not contain private attributes, the software an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K7/00G06F21/00G06F21/73
Inventor 苗骞刘建强黄显国陈佳刘洁清范波高鹏
Owner CARERAY DIGITAL MEDICAL TECH CO LTD
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