Circuit breaker sensor
US-2016327611-A1 · Nov 10, 2016 · US
System for monitoring the operation of a current loop
US9778317B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9778317-B2 |
| Application number | US-201314435054-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 9, 2013 |
| Priority date | Oct 10, 2012 |
| Publication date | Oct 3, 2017 |
| Grant date | Oct 3, 2017 |
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- Title
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Abstract
Official abstract text for this publication.
In a system for monitoring the operation of a current loop, which is fed by a current source and has a switching element, an evaluation unit is arranged at the output of the current loop, which evaluation unit is designed to identify a state of the switching element on the basis of the current flowing in the current loop. Furthermore, a signal generation device is arranged in the current loop, which signal generation device is connected to the switching element and is designed to generate a dynamic signal characterizing the state of the switching element in the current loop.
First claim
Opening claim text (preview).
The invention claimed is: 1. A system for monitoring the function of a current loop, which is fed by a current source and has a switching element, wherein an evaluation unit is arranged at the output of the current loop, which evaluation unit is designed to identify a state of the switching element on the basis of the current flowing in the current loop, wherein furthermore a signal generation device is arranged in the current loop, said signal generation device being connected to the switching element and generating a dynamic signal characterizing the state of the switching element in the current loop, wherein the dynamic signal generated by the signal generation device is one of a plurality of pulsed signals; wherein the signal generation device generates the pulsed signals by short-circuiting the loop current; and wherein the switching element is a multiple state switch having more than two states, and the signal generation device characterizes each individual one of the switch states by generating a different one of the plurality of pulsed signals. 2. The system as claimed in claim 1 , wherein the signal generation device is designed to characterize the state of the switching element on the basis of the frequency and/or phase and/or amplitude and/or on the basis of the duty factor of the signal. 3. The system as claimed in claim 1 , wherein the evaluation unit is designed to identify an interruption to the current loop, a short circuit or disrupted operation on the basis of the frequency and/or phase and/or amplitude and/or on the basis of the duty factor of the signal. 4. The system as claimed in claim 1 , wherein the signal generation device is arranged in direct connection with the switching element or forms a unit with the switching element.
Assignees
Inventors
Classifications
Emergency operating parts, e.g. for stop-switch in dangerous conditions · CPC title
Indicating direction of current; Indicating polarity of voltage · CPC title
the equipment being switches, relays or circuit breakers · CPC title
Cross-Sectional Technologies · mapped topic
- H01H9/167Primary
Circuits for remote indication · CPC title
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Frequently asked questions
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- What does patent US9778317B2 cover?
- In a system for monitoring the operation of a current loop, which is fed by a current source and has a switching element, an evaluation unit is arranged at the output of the current loop, which evaluation unit is designed to identify a state of the switching element on the basis of the current flowing in the current loop. Furthermore, a signal generation device is arranged in the current loop, …
- Who is the assignee on this patent?
- Zumtobel Lighting Gmbh
- What technology area does this patent fall under?
- Primary CPC classification H01H9/167. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Oct 03 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).