Message decoding method and device, and computer readable storage medium
A decoding method and message technology, applied in the computer field, can solve the problems affecting the overall effect of interference signal suppression, interference impact, no effective suppression, etc., to reduce the probability of missing transponders, improve performance, and predict the validity of the accuracy. Effect
Pending Publication Date: 2022-05-31
BEIJING HOLLYSYS
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Problems solved by technology
However, there are many types of high-power equipment at the bottom of the vehicle, and changes in the metal structure / grounding / phase separation area power supply mode will affect the overall effect of interference signal suppression. Especially for vehicles, there is no effective interference caused by the phase separation area. means of suppression
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[0053] In order to make the purpose, technical solution and advantages of the present disclosure clearer, the embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present disclosure and the features in the embodiments can be combined arbitrarily with each other.
[0054] Unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present disclosure shall have the usual meanings understood by those skilled in the art to which the present disclosure belongs. "First", "second" and similar words used in the embodiments of the present disclosure do not indicate any sequence, quantity or importance, but are only used to distinguish different components. "Comprising" or "comprising" and similar words mean that the elements or items preceding the word include the elements or items listed after the word and th...
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A message decoding method and device, and a computer readable storage medium, the method comprising: receiving a data bit stream, the data bit stream comprising a plurality of packets of identical or substantially identical data messages, the plurality of packets of substantially identical data messages being caused by at least one transmission error of dislocation, multi-bit or few-bit of at least one packet of data messages; the received data bit stream is segmented, the range of each segment of data bit stream is N + / -n bits, N is the bit number of each packet of data message, n is a preset search threshold value, and n is an integer greater than 0; and grouping each section of data bit stream, comparing the corresponding group of data in the multiple sections of data bit streams with the next group of data of the corresponding group of data one by one, correcting the corresponding group of data according to a comparison result, and processing the subsequent group of data of the corresponding group of data. According to the invention, the decoding performance of the transponder information transmission unit under the interference condition is greatly improved, and the probability of losing the transponder is reduced.
Description
technical field [0001] The present disclosure relates to but not limited to the field of computer technology, and in particular, relates to a message decoding method and device, and a computer-readable storage medium. Background technique [0002] The Balise Transmission Module (BTM) is a secure transmission system that transmits safety-related information between the ground balise and the Automatic Train Protection (ATP) on-board equipment. The BTM sends 27.095MHz energy through the antenna Signal, activate the ground transponder, the ground transponder sends a frequency-shift keying (FSK) modulation signal with a center frequency of 4.234MHz to the BTM for further demodulation and decoding, and decodes the 1023bits encrypted message sent by the transponder into 830bits User messages, so as to accurately transmit ground information to the vehicle control system. As long as the activation energy sent by the antenna does not disappear, the transponder will cyclically send me...
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IPC IPC(8): H04L47/38H04L41/0823H04L41/50H04L47/76
CPCH04L47/38H04L41/0823H04L41/50H04L47/76
Inventor 周宁李明兵范亚林秦志圣刘子峰姜士诚
Owner BEIJING HOLLYSYS