Error correction code reading character wheel device

An error correction coding and word wheel technology, which is applied in the field of remote transmission of count values, can solve the problem of difficulty in reporting errors, and achieve the effect of improving reliability.

Pending Publication Date: 2022-01-04
CHENGDU QIANJIA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the code value of the error after interference is a valid code value, it is more difficult to report an error

Method used

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  • Error correction code reading character wheel device
  • Error correction code reading character wheel device
  • Error correction code reading character wheel device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] This embodiment discloses an error correction code reading word wheel device, such as figure 1 , figure 2 As shown, it includes a transmitting board 2, a character wheel code disc 3, a receiving board 4 and a microprocessor, and the character wheel code disc 3 is arranged between the transmitting board 2 and the receiving board 4, and the signal received on the receiving board 4 passes through The circuit is connected and transmitted to the signal conditioning circuit, and the emitting board 2 is used to emit infrared light, and the infrared light emitted by the emitting board 2 can be directed to the corresponding position on the character wheel code disc 3, and the character wheel code disc 3 passes through or Block the infrared light so that the angular displacement information is mapped onto the receiving board 4; the receiving board 4 converts the received optical signal into a level signal to be read by the microprocessor 10, and the microprocessor 10 is used for...

Embodiment 2

[0087] This embodiment discloses an error-correcting code reading character wheel device. This embodiment redesigns the angle part of the light-transmitting belt in Embodiment 1, and the rest is exactly the same as Embodiment 1, specifically:

[0088] The designed code channel graph is as follows Figure 4, in this embodiment, the character wheel code disc is still a single code track, including 3 fan-shaped hole slots, the fan-shaped hole slots are concentric with the character wheel center and on the same circumferential line, and the 3 fan-shaped hole slots are respectively the first One translucent zone 7, the second translucent zone 8 and the third translucent zone 9, and the rest are opaque parts; the radian of the first translucent zone 7 is 2π / 7, and the second translucent zone 8 The radian of the third light-transmitting zone 9 is 3π / 7, the radian of the interval between the first light-transmitting zone 7 and the second light-transmitting zone 8 is π / 7, and the radia...

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PUM

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Abstract

The invention discloses an error correction code reading character wheel device. A character wheel code disc is arranged between a transmitting plate and a receiving plate; the transmitting plate is used for transmitting infrared light, transmitting the infrared light through the character wheel code disc and mapping the infrared light to the receiving plate; a receiving plate converts received infrared light information into a level signal, the level signal is read and decoded by a microprocessor, and due to the fact that 14 (7, 4) system cycle Hamming code values are generated when a character wheel code disc code channel graph rotates by one circle, automatic error correction of any code value error is achieved after decoding operation of the microprocessor. An automatic alarm prompt function is provided for the error condition of any more than two bits of code values; the beneficial effects of the invention are that the method achieves the automatic correction of any code value error, achieves the automatic alarm prompt function of any more than two code value errors, and improves the accuracy of character wheel numerical value reading. And when any bit has a hardware fault, the device can still work normally, so that the reliability of the system is improved.

Description

technical field [0001] The invention relates to the technical field of remote transmission of counting values ​​such as mechanical counting gas meters, electric energy meters and water meters, and in particular relates to an error correction code reading character wheel device. Background technique [0002] In order to achieve remote transmission of the three meters counted by mechanical devices, its mechanical readings must be converted into electronic information through photoelectric conversion and other technologies. At present, most of them use photoelectric coupling angle position coding to convert the angle information of the counting wheel into corresponding binary code values. The electronic circuit system composed of the device reads the user's usage data and performs corresponding processing and services. At present, the coding setting basically adopts ordinary binary code and gray code. Since 4-bit binary code has 16 code values, it can represent 10 numbers of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/10H03M13/15
CPCG06F11/102H03M13/15
Inventor 陈伟明刘义贾忠友李中华刘勋
Owner CHENGDU QIANJIA TECH CO LTD
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