Plug-In Radio Module With Power-Adaptive Wireless Transmission
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Solution Overview
Problem
Two-wire field devices in automation technology are limited by power constraints, restricting the power and speed of wireless data transmission by radio modules, which are adapted to conserve energy but operate at low transmission speeds to avoid exceeding the maximum power allocation.
Innovation Solution
A plug-in radio module that adjusts its transmission interval and data width based on the current power available from the field device, switching between standard and power-matched operating modes to optimize wireless data transmission speed while ensuring safe operation within power limits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the radio module is adapted to operate permanently within maximum power allocation, then the radio module can safely transmit data wirelessly at any time, but the data transmission speed is reduced to save power
Solution Approach 1:
The radio module dynamically adjusts its transmission parameters (transmission interval and data width) based on the currently available power in the field device. The module monitors power availability and adapts its operating mode in real-time, switching between conservative and aggressive transmission strategies to optimize both reliability and transmission speed under varying power conditions.
Solution Approach 2:
The invention changes the operational parameters of the radio module (transmission interval, data width) according to the available power level. By adjusting these parameters based on power availability, the system achieves high transmission speeds when power is abundant while maintaining safe operation when power is limited, thus resolving the contradiction between reliability and productivity.
2Productivity
If the radio module transmits data at high speed, then productivity is improved, but the power consumption exceeds the maximum power allocation for two-wire field devices
Solution Approach 1:
The radio module employs dynamic parameter adjustment, continuously monitoring the power available in the field device and adapting its transmission characteristics accordingly. This allows the system to achieve high transmission speeds when power is available while automatically reducing consumption when power is limited, eliminating the need for a fixed conservative setting.
Solution Approach 2:
The invention implements parameter changes by adjusting transmission interval and data width based on power availability. When sufficient power is detected, the module increases data width and reduces transmission interval to maximize speed. When power is limited, it reduces data width and increases interval to stay within power constraints, thus achieving high productivity without permanently exceeding power allocation.
3Use of energy by stationary object
If the radio module uses minimum power supplied to the field device, then power consumption is controlled, but the transmission speed is comparatively low
Solution Approach 1:
The radio module transitions from static minimum-power operation to dynamic power-adapted operation. By continuously assessing available power and adjusting transmission parameters accordingly, the module can temporarily operate at higher speeds when power is abundant while maintaining long-term power balance, thus achieving both power control and improved transmission speed.
Solution Approach 2:
The invention applies parameter changes by adjusting transmission interval and data width based on the ratio of available power to minimum power. This allows the module to operate at minimum power settings when power is limited, achieving efficient power control, while automatically increasing transmission speed when additional power is available, thus resolving the contradiction between power control and productivity.
Data Source
AI summary
Disclosed is a plug-in radio module for automation engineering for wireless data transmission, having at least a wired interface for connecting to a corresponding wired field device interface of a field device and radio module electronics having a radio antenna, wherein the radio module electronics are configured to use the wired interfaces to query at least one current value of the field device and to use the current value to adapt a paging interval and/or a radio data width for the wireless data transmission as appropriate, so that the radio module electronics perform an adapted-power mode of operation in which the wireless data transmission is matched to the power currently made available to the field device.