EP0175552A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Improvements in or relating to the monitoring of fluids
Assignee: Eda Research & Development Ltd
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Filing: 1985-09-12
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Granted: —
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Expires: 2005-09-12
Abstract
Abstract 57 The invention provides an arrangement for monitoring conditions of a fluid comprising a first station incorporating a detector and transmitter assembly including a plurality of condition sensors, each of which is adapted to monitor one or more conditions of a fluid, receipt circuits adapted to receive signals from the sensors, a radio transmitter circuit fed from the receipt circuits; and a second station incorporating a receiver and output assembly including a radio decoding circuit for receiving signals from the transmitter circuit, incorporating a sub-circuit for separating and deconding signals from each of the conditions sensors, and a sub-circuit for converting these signals to a common voltage range, and an output circuit for translating the signal voltages to appropriate signal values for a visual and/ or audio output.
Inventors
- 👤 Julien Darren Snell
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-27 17:18
CPC Classifications
G; G08; G08B; G08B19/00; G01; G01N; G01N33/00; G01N33/18
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
121 words
Apparatus for monitoring conditions of a fluid comprising a first station incorporating a detector and transmitter assembly including a plurality of condition sensors, each of which is adapted to monitor one or more conditions of a fluid, receipt circuits adapted to receive signals from the sensors, a radio transmitter circuit fed from the receipt circuits; and a second station incorporating a receiver and output assembly including a radio decoding circuit for receiving signals from the transmitter circuit, incorporating a sub-circuit for separating and decoding signals from each of the condition sensors, and a sub-circuit for converting these signals to a common voltage range, and output circuit for translating the signal voltages to appropriate signal values for a visual and/or audio output.
Claim 2
Dependent Claim
121 words
Apparatus for monitoring conditions of a fluid comprising a first station incorporating a detector and transmitter assembly including a plurality of condition sensors, each of which is adapted to monitor one or more conditions of a fluid, receipt circuits adapted to receive signals from the sensors, a radio transmitter circuit fed from the receipt circuits; and a second station incorporating a receiver and output assembly including a radio decoding circuit for receiving signals from the transmitter circuit, incorporating a sub-circuit for separating and decoding signals from each of the condition sensors, and a sub-circuit for converting these signals to a common voltage range, and output circuit for translating the signal voltages to appropriate signal values for a visual and/or audio output.
Claim 3
Dependent Claim
17 words
Apparatus as claimed in Claim 1 wherein the first station receipt circuits include amplifier and offset circuits.
Claim 4
Dependent Claim
42 words
Apparatus as claimed in Claim 1 or 2 wherein the second station includes a radio transmitter circuit adapted to receive signals from one or more control circuits and transmit command signals to the first station or elsewhere to operate fluid controlling mechanisms.
Claim 5
Dependent Claim
33 words
Apparatus as claimed in Claim 1 or 2 including a further station incorporating a radio control system adapted co transmit command signals to the first station or elsewhere to operate fluid controlling mechanism.
Claim 6
Dependent Claim
20 words
Apparatus as claimed in Claim 3 or 4 wherein the fluid controlling mechanisms comprise a fluid pump and a heater.
Claim 7
Dependent Claim
44 words
Apparatus as claimed in any one of the preceding claims wherein the transmitter circuit in the first station is arranged to transmit signals from each of the probe sensors at different frequencies which are detected and separated by the receiver of the second station.
Claim 8
Dependent Claim
46 words
Apparatus as claimed in any one of Claims 1 to 5 wherein the transmitter circuit in the first station is arranged to transmit signals from each of the probe sensors in pulse width variations which are detected and separated by the receiver of the second station.
Claim 9
Dependent Claim
33 words
Apparatus as claimed in any one of the preceding claims wherein circuits are provided in the first station for converting the signal voltages from each of the sensors to a common voltage range.
Claim 10
Dependent Claim
48 words
Apparatus as claimed in any one of the preceding claims wherein the second station incorporates an approriate matrix selector for operator usage for selecting from the plurality of separate signals received from the transmitter of the first station for forwarding on to the visual and/or audio output circuit.
Claim 11
Dependent Claim
28 words
Apparatus as claimed in any one of the preceding claims wherein the output circuit may include an LED, LCD unit or gas plasma and a warning signal output.
Claim 12
Dependent Claim
42 words
Apparatus as claimed in any one of the preceding claims for monitoring water conditions of a swimming pool wherein sensors are provided at least for detecting the ph values of the water, the level of disinfectant, the temperature, and the water clarity.
Claim 13
Independent Claim
61 words
A method of monitoring fluid conditions by obtaining signals from sensors detecting a plurality of conditions; amplifying such signals and transmitting them via a radio transmitter to a receiver; decoding and separating the signals with respect to the separate elements at the receiver and converting the same into signal voltages; and passing such signal voltages to a visual and/or audio output.
Claim 14
Independent Claim
61 words
A method of monitoring fluid conditions by obtaining signals from sensors detecting a plurality of conditions; amplifying such signals and transmitting them via a radio transmitter to a receiver; decoding and separating the signals with respect to the separate elements at the receiver and converting the same into signal voltages; and passing such signal voltages to a visual and/or audio output.
Claim 15
Dependent Claim
30 words
A method as claimed in Claim 12 comprising the additional step of transmitting by radio command signals to operate fluid controlling mechanisms in dependencce on the visual and/or audio output.
Claim 16
Dependent Claim
25 words
A method as claimed in Claim 12 or 13 wherein the signals are transmitted at different frequenices which are detected and separated by the receiver.
Claim 17
Dependent Claim
26 words
A method as claimed in Claim 12 or 13 wherein the signals are transmitted in pulse width variations which are detected and separated by the receiver.
References Cited (Backward Citations)
No citation records indexed.
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