Communication Apparatuses Using Advance Timing for Sensor Transmission
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Solution Overview
Problem
Existing technologies face challenges in efficiently transmitting sensor information with precise timing synchronization between communication apparatuses, leading to inefficiencies and potential delays in processing systems.
Innovation Solution
A communication system is implemented with a first and second communication apparatus that synchronize their timekeeping using an offset value to ensure sensor information is obtained and transmitted with high accuracy, allowing the processing apparatus to estimate sensor information at a predetermined time based on elapsed time and actual communication times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the second communication apparatus transmits sensor information to the first communication apparatus without advance timing synchronization, then the communication procedure is simple, but the transmission timing accuracy deteriorates causing delays in processing
Solution Approach 1:
The patent applies preliminary action by having the second communication apparatus determine the start timing of the obtainment/transmission procedure in advance, before actual sensor information transmission. The apparatus calculates the start timing based on the first time (communication transmission time) and the obtainment wish timing, ensuring that sensor information is obtained and transmitted with precise timing synchronization. This advance timing determination resolves the contradiction by achieving high transmission timing accuracy without requiring complex real-time synchronization procedures during actual transmission.
2Reliability
If the system waits for obtainment wish timing to transmit sensor information, then timing synchronization is achieved, but transmission delays occur due to communication time requirements
Solution Approach 1:
The patent resolves this contradiction by performing preliminary determination of the start timing for sensor information obtainment and transmission. The second communication apparatus calculates when to start the procedure based on the known first time (communication transmission time) and the obtainment wish timing, so that the sensor information is ready and transmitted exactly when needed. This eliminates transmission delays while maintaining timing synchronization, as the system proactively schedules the obtainment/transmission procedure to complete precisely at the obtainment wish timing.
3Measurement precision
If multiple sensor information transmissions are handled without elapsed time tracking, then the communication process is simple, but the processing apparatus cannot estimate sensor information at predetermined times accurately
Solution Approach 1:
The patent applies feedback by having the first communication apparatus transmit elapsed time information to the processing apparatus. The elapsed time represents the time from when the first communication apparatus obtained the sensor information to when it transmitted the sensor information to the processing apparatus. The processing apparatus uses this elapsed time feedback, combined with the actual communication time, to accurately estimate sensor information at predetermined times. This feedback mechanism resolves the contradiction by enabling precise estimation without requiring complex real-time synchronization protocols.
Data Source
AI summary
A communication system includes a first communication apparatus communicating with a processing apparatus and a second communication apparatus performing an obtainment/transmission procedure of obtaining sensor information from a sensor unit and transmitting the sensor information to the first communication apparatus. The sensor unit includes at least one sensor. The first communication apparatus transmits the sensor information from the second communication apparatus to the processing apparatus, in response to an obtainment wish timing with which the processing apparatus wishes to obtain the sensor information. The second communication apparatus determines a start timing to start the obtainment/transmission procedure, based on a first time required to communicate between the first and second communication apparatuses when the second communication apparatus transmits the sensor information to the first communication apparatus.