Electrical device arrangement, in particular for an item of furniture, with a bus device and bus subscribers, and a method for controlling such electrical device arrangement
First Claim
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1. An electrical device arrangement of electrical devices of a hospital bed, comprising:
- a bus device having at least two control paths, two power paths and at least one enable path, anda plurality of bus subscribers connected to the bus device,wherein one of the plurality of bus subscribers forms an operating unit with an input unit having a keypad, and wherein the at least one enable path is switched by the keypad,wherein the one bus subscriber which forms the operating unit applies a signal to the at least one enable path and thereby changes the operating state of a selection of the plurality of bus subscribers or of groups of bus subscribers,wherein the applied signal from the at least one enable path switches the operating state of the selection of the plurality of bus subscribers or of the groups of bus subscribers between an active operating state and a passive operating or an energy-saving operating state, wherein the bus device and the bus subscribers are electrical devices of the hospital bed.
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Abstract
An electrical device arrangement, in particular for an item of furniture, includes a bus device and bus subscribers. The bus device has at least two control paths, two power paths and at least one enable path. The additional enable path simplifies the mutual identification of the bus subscribers and also improves the so-called first fail-safety. The signals carried on the enable path furthermore allow a safe shutdown of the system and provide a power-saving sleep mode. A method for controlling such an electrical device arrangement, in particular for an item of furniture, having a bus device and bus subscribers is also disclosed.
32 Citations
22 Claims
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1. An electrical device arrangement of electrical devices of a hospital bed, comprising:
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a bus device having at least two control paths, two power paths and at least one enable path, and a plurality of bus subscribers connected to the bus device, wherein one of the plurality of bus subscribers forms an operating unit with an input unit having a keypad, and wherein the at least one enable path is switched by the keypad, wherein the one bus subscriber which forms the operating unit applies a signal to the at least one enable path and thereby changes the operating state of a selection of the plurality of bus subscribers or of groups of bus subscribers, wherein the applied signal from the at least one enable path switches the operating state of the selection of the plurality of bus subscribers or of the groups of bus subscribers between an active operating state and a passive operating or an energy-saving operating state, wherein the bus device and the bus subscribers are electrical devices of the hospital bed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method for controlling an arrangement of electrical devices of a hospital bed, having a bus device including at least two control paths, two power paths and at least one enable path, and a plurality of bus subscribers connected to the bus device, the method comprising the steps of:
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(i) Activating an input unit with a keypad of one of the plurality of bus subscribers, said input unit used as an operating unit; (ii) Classifying the bus subscriber which forms the operating unit by way of an enable path either as a bus subscriber with master functionality or as an additional bus subscriber; (iii) Addressing with the input unit a second bus subscriber different from the one bus subscriber or the additional bus subscriber of the plurality of bus subscribers; and (iv) Controlling a the second bus subscriber, wherein the bus device and the bus subscribers are electrical devices of the hospital bed. - View Dependent Claims (22)
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Specification