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Method and device for checking rolling code repetition in coding chip

A rolling code and chip technology, applied in measurement devices, memory address/allocation/relocation, instruments, etc., can solve the problem of rolling code repetition, etc., and achieve the effect of quickly checking the rolling code repetition

Pending Publication Date: 2022-07-01
SUZHOU HUAXIN MICROELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method and device for checking the repetition of rolling codes inside the encoding chip, so as to solve the problem of repeated rolling codes in the existing encoding chips

Method used

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  • Method and device for checking rolling code repetition in coding chip
  • Method and device for checking rolling code repetition in coding chip
  • Method and device for checking rolling code repetition in coding chip

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0030] like figure 1 As shown, a method for checking the repetition of rolling codes in an encoding chip in an embodiment of the present invention is introduced, and the method includes the following steps.

[0031] In step S101, the rolling code of the encoding chip is acquired.

[0032] Rolling codes generally refer to those remote control coding schemes that send out different codes each time the same button is pressed. Usually, the maximum rolling code of a single-chip microcomputer chip is 32 bits, so the range of rolling code to be detected can be determined as 1~4294967296. In the case of solving the duplicate check of large data, it is necessary to use the method of space-time conversion. Because the computer operates the memory and the test system reads the chip rolling code very fast and the time is very short, it only needs to allocate enough memory space.

[0033] The total memory space allocated is proportional to the capacity of a single space. Obviously, under...

Embodiment 2

[0046] like figure 2 As shown, a method for checking the repetition of rolling codes in an encoding chip in an embodiment of the present invention is introduced, and the method includes the following steps.

[0047] In step S201, the rolling code of the encoding chip is acquired.

[0048]Rolling codes generally refer to those remote control coding schemes that send out different codes each time the same button is pressed. Usually, the maximum rolling code of a single-chip microcomputer chip is 32 bits, so the range of rolling code to be detected can be determined as 1~4294967296. In the case of solving the duplicate check of large data, it is necessary to use the method of space-time conversion. Because the computer operates the memory and the test system reads the chip rolling code very fast and the time is very short, it only needs to allocate enough memory space.

[0049] The total memory space allocated is proportional to the capacity of a single space. Obviously, under...

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Abstract

The invention discloses a method and a device for checking rolling code repetition in a coding chip. The method comprises the following steps: acquiring a rolling code of the coding chip; addressing to a corresponding mapping memory space according to the rolling code; and judging whether the rolling code is repeated or not according to the mapping memory space. According to the method, an algorithm for quickly checking the repetition of the rolling codes can be realized by increasing the memory space mapped by the rolling codes, so that no repetition of the rolling codes of the same batch of coding chips can be ensured without additional equipment, and meanwhile, other test items are not influenced.

Description

technical field [0001] The present invention relates to the field of coding chip rolling codes, in particular to a method and a device for checking the repetition of rolling codes inside the coding chip. Background technique [0002] In today's various electronic devices, the coding chip is an indispensable device. Due to its mature technology and low cost, coding chips are often used as control circuits for various small and medium-sized electronic products. When encoding chips are used on a large scale, it is often necessary to write rolling codes inside the chip to distinguish different entities of the same product. Typical application scenarios are the remote control of electric vehicles and the remote control of garage shutter doors, which mainly use single-chip control circuits. When mass-producing electric vehicles, it is necessary to match the electric vehicle and the remote control separately to prevent a single remote control from unlocking multiple electric vehi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F12/02G01D5/245
CPCG06F12/023G01D5/2451
Inventor 王建
Owner SUZHOU HUAXIN MICROELECTRONICS
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