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A method, device and system for realizing PSAM card parallel computing

A parallel computing, PSAM technology, applied in the direction of instrumentation, electrical digital data processing, etc., can solve problems affecting the transaction speed of equipment, etc., and achieve the effects of flexible and configurable features, easy transplantation, and high data rate

Active Publication Date: 2015-09-16
SHENZHEN GENVICT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in practice, it is found that when the number of PSAMs is large, the CPU needs to communicate with each PSAM card one by one, which seriously affects the transaction speed of the device.

Method used

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  • A method, device and system for realizing PSAM card parallel computing
  • A method, device and system for realizing PSAM card parallel computing
  • A method, device and system for realizing PSAM card parallel computing

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Embodiment Construction

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0035] Embodiments of the present invention provide a method, device, and system for realizing parallel computing of PSAM cards, which can support simultaneous parallel computing of multiple PSAM cards. Each will be described in detail below.

[0036] see figure 1 , figure 1 It is a flowchart of a method for realizing parallel computing of PSAM cards provided by the present invention. Such as figure 1 As shown, the method for realizing parallel computing o...

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Abstract

The invention discloses a method, equipment and a system for implementing parallel calculation of a purchase secure access module (PSAM) card. The method comprises the following steps of: receiving operation instructions, which is sent by a central processing unit (CPU) through a bus, of a plurality of PSAM cards, wherein the operation instruction of each PSAM card carries command data of each PSAM card; performing protocol encapsulation on the command data of each PSAM card to acquire encapsulated data corresponding to each PSAM card; sending the encapsulated data corresponding to each PSAM card to the corresponding PSAM card, triggering the PSAM cards to perform parallel calculation on the encapsulated data, and returning calculated data; and triggering the CPU to extract the calculated data returned by the PSAM cards. By the method, the equipment and the system, real physical parallel calculation of the PSAM cards can be realized; the method, the equipment and the system have flexible configurable characteristics; the data rate of a physical interface is high; working loads of the CPU can be realized; the interface is stable and reliable; the number of PSAM cards is convenient to configure; and the PSAM cards is easy to transplant.

Description

technical field [0001] The present invention relates to dedicated short-range communication (Dedicated Short Range Communication, DSRC), electronic toll collection system (Electronic Toll Collection System, ETC), free flow, especially the field of roadside unit (Road Side Unit, RSU) among them, specifically relates to A method and device for realizing parallel computing of a Purchase Secure Access Module (PSAM) card. Background technique [0002] At present, PSAM cards are widely used in various occasions that require secure computing. For example, in the application of electronic toll collection system (ETC) and roadside unit (RSU), usually a central processing unit (Central Processing Unit, CPU) is directly used to communicate with the PSAM card, so that the PSAM card performs calculation processing. However, it is found in practice that when the number of PSAMs is large, the CPU needs to communicate with each PSAM card one by one, which seriously affects the transaction ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F13/38
Inventor 吴荣华俞明良黄日文向根洪
Owner SHENZHEN GENVICT TECH
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