Method of controlling wireless data transmission by switching between short-range and long-range radio technologies
First Claim
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1. A method of controlling wireless data transmission from a mobile terminal unit to a receiving system, wherein:
- a) the terminal unit transmits data to a network via a short-range radio technology in a first mode and monitors quality of the communication link and automatically switches to a second mode in response to the quality of the communication link via the short-range radio technology falling below a first predetermined threshold;
b) the terminal unit transmits data to the network via a long-range radio technology while monitoring the quality of the communication link via the first mode and automatically switches to the first mode as soon as the quality of the communication link via the short-range radio technology is above a second predetermined threshold;
c) on switching from one mode to the other, the communication link via the radio technology of the previous mode is maintained until the link is established via the radio technology of the subsequent mode.
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Abstract
The invention relates to a device, in particular a patient monitoring system with a mobile terminal unit (1) for acquiring patient data. The measured data is transferred from the terminal unit (1) via a short-range radio technology (2) (e.g. Bluetooth) to a data monitor (3) arranged at the patient'"'"'s bedside when the patient is in the vicinity thereof. If necessary, communication can be switched to a long-range radio technology (7) (e.g. WLAN) to ensure interruption-free data transmission while the patient moves around.
26 Citations
11 Claims
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1. A method of controlling wireless data transmission from a mobile terminal unit to a receiving system, wherein:
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a) the terminal unit transmits data to a network via a short-range radio technology in a first mode and monitors quality of the communication link and automatically switches to a second mode in response to the quality of the communication link via the short-range radio technology falling below a first predetermined threshold; b) the terminal unit transmits data to the network via a long-range radio technology while monitoring the quality of the communication link via the first mode and automatically switches to the first mode as soon as the quality of the communication link via the short-range radio technology is above a second predetermined threshold; c) on switching from one mode to the other, the communication link via the radio technology of the previous mode is maintained until the link is established via the radio technology of the subsequent mode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of controlling wireless data transmission from a mobile terminal unit to a receiving system, wherein:
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a) the terminal unit transmits data to a network via a shod-range radio technology in a first mode and monitors quality of the communication link and automatically switches to a second mode in response to the quality of the communication link via the short-range radio technology falling below a first predetermined threshold, the terminal unit having sensors for measuring physiological parameters of a patient; b) the terminal unit transmits data to the network via a long-range radio technology while monitoring the quality of the communication link via the first mode and automatically switches to the first mode as soon as the quality of the communication link via the short-range radio technology is above a second predetermined threshold; c) on switching from one mode to the other, the communication link via the radio technology of the previous mode is maintained until the link is established via the radio technology of the subsequent mode.
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11. A patient monitoring system for mobile acquisition of a patient'"'"'s physiological parameters, comprising:
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at least one mobile terminal unit which acquires the patient'"'"'s physiological parameters, the mobile terminal unit being configured to; transmit physiological parameter data to a network via a short range radio technology in a first mode while monitoring a quality of a communication link via the short range radio technology, and switch to a second mode in response to the quality of the communication link via the short range radio technology falling below a first predetermined threshold, and transmit the physiological parameter data via a long range radio technology in the second mode while monitoring the quality of the communication link via the short range radio technology and switch automatically back to the first mode as soon as the quality of the communication link via the short range radio technology is above a second predetermined threshold, and maintain the communication link via the short range radio technology until the communication link is established via the long range radio technology when switching from the first mode to the second mode, and maintain the communication link established via the long range radio technology until the communication link is established via the short range radio technology when switching from the second mode to the first mode, such that at least one communication link is always maintained; and a receiving system which receives the physiological parameter data from the at least one mobile terminal unit, the receiving system including; a first station which communicates via the at least one mobile terminal unit via the short range radio technology, and a second station which communicates with the at least one mobile terminal unit via the long range radio technology.
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Specification