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Online software upgrading circuit of onboard ejection lifesaving product

A software upgrade and circuit technology, which is applied in the field of aviation lifesaving, can solve the problems of product reliability and safety impact, difficulty in finding product damage when disassembling and assembling the shell, and cumbersome upgrade process, etc.

Active Publication Date: 2017-05-31
CHINA AVIATION LIFESAVING INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When upgrading the software of a certain type of airborne new product, it is necessary to remove the casing for software upgrade, and then install the casing. Not only is the upgrade process cumbersome, but the reliability and safety of the product may be affected during the process of disassembling the casing. It needs to be tested again after the software is upgraded, but the site does not have the conditions for a comprehensive test, and it is difficult to find the damage caused to the product during the process of disassembling and assembling the shell

Method used

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  • Online software upgrading circuit of onboard ejection lifesaving product

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Embodiment Construction

[0007] The present invention will be described in further detail below. see figure 1 , an online software upgrade circuit for airborne ejection lifesaving products, characterized in that it includes a double-connected single-pole three-throw switch, two single-connected single-pole three-throw switches and two RS422 communication chips; the receiver of the first RS422 communication chip U1 The positive input terminal U1in+ is connected in parallel with the positive input terminal U2in+ of the receiver of the second RS422 communication chip U2 to become the positive data input terminal of the software upgrade circuit, and the negative terminal U1in- of the receiver input of the first RS422 communication chip U1 is connected to the receiving terminal of the second RS422 communication chip U2 The negative input terminal U2in- of the device becomes the data input negative terminal of the software upgrade circuit after being connected in parallel, the driver output positive termina...

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Abstract

The invention belongs to the technical field of aviation lifesaving and relates to an online software upgrading circuit of an onboard ejection lifesaving product. The online software upgrading circuit is characterized by comprising a duplex single pole triple throw switch, two single-linkage single pole triple throw switches and two RS422 communication chips. The invention provides the online software upgrading circuit of the onboard ejection lifesaving product, so that an original tedious upgrading method of some type of new onboard product that a casing needs to be needs to be disassembled / assembled is greatly simplified; on the premise of ensuring the safety and the reliability of online software upgrading of the product, the efficiency of software upgrading of the onboard ejection lifesaving product is improved.

Description

technical field [0001] The invention belongs to the technical field of aviation lifesaving, and relates to an online software upgrading circuit for airborne ejection lifesaving products. Background technique [0002] At present, due to the high reliability and high safety of the life-saving system, the airborne electronic products in the catapult life-saving system do not have the ability to upgrade and write on-site software. When upgrading the software of a certain type of airborne new product, it is necessary to remove the casing for software upgrade, and then install the casing. Not only is the upgrade process cumbersome, but the reliability and safety of the product may be affected during the process of disassembling the casing. It needs to be tested again after the software is upgraded, but the site does not have the conditions for a comprehensive test, and it is difficult to find the damage caused to the product during the process of disassembling and assembling the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/40G06F9/445
CPCG06F8/65G06F13/4022G06F13/4068
Inventor 毛春华史洪亮高峰曹瑞雪张建春
Owner CHINA AVIATION LIFESAVING INST
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