System for automatic generation of a change schedule for a plurality of lighting means
First Claim
1. System for automatic planing of the operation of a number of lighting means, said system comprising input and storage means configured for input and storage of a plurality of parameters for a plurality of groups comprising lighting means of the same type in the same location, where the parameters of each group comprise at least:
- the number of lighting means in the group, the type of lighting means, and/or a price and a value for a lifetime of the lighting means, an operating time of the lighting means, a first outlay parameter representative of the outlay for preparation for a change of lighting means at said location, and a second outlay parameter representative of the outlay for changing of the lighting means, said system further comprising computing means configured to calculate a change schedule with change times for changing of all of the lighting means of individual groups, where said change schedule is calculated such that in a given time interval the total cost for all groups is minimized, where said computing means are configured such that for each group the group costs for replacement of lighting means within said time interval are calculated, and where in case of identical change times for different groups the first outlay parameter is accounted for only once.
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Abstract
A system, a method and a computer program for planning the operation of a plurality of lighting means are described. For example in a department store, a number of different types of lighting means, e.g. filament lamps, discharge lamps and fluorescent tube lamps, may be installed. All of these lighting means have a certain life time and eventually need to be replaced. The system, method and computer program according to the invention automatically determine a change schedule with maintenance events for changing the lighting means, which leads to overall minimum cost in a specified time interval. The user enters a plurality of parameters for each groups of lighting means, including the number of lighting means in the group, type, price and/or value for a lifetime and operating time of the lighting means, as well as a first outlay parameter for preparation outlay and a second outlay parameter for changing outlay. The optimum change schedule is calculated in a way, where in case of identical change times for different groups, the first outlay parameter is accounted for only once.
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Citations
10 Claims
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1. System for automatic planing of the operation of a number of lighting means, said system comprising input and storage means configured for input and storage of a plurality of parameters for a plurality of groups comprising lighting means of the same type in the same location, where the parameters of each group comprise at least:
- the number of lighting means in the group, the type of lighting means, and/or a price and a value for a lifetime of the lighting means, an operating time of the lighting means, a first outlay parameter representative of the outlay for preparation for a change of lighting means at said location, and a second outlay parameter representative of the outlay for changing of the lighting means, said system further comprising computing means configured to calculate a change schedule with change times for changing of all of the lighting means of individual groups, where said change schedule is calculated such that in a given time interval the total cost for all groups is minimized, where said computing means are configured such that for each group the group costs for replacement of lighting means within said time interval are calculated, and where in case of identical change times for different groups the first outlay parameter is accounted for only once.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. Method for planning the operation of a number of lighting means, where a plurality of parameters are stored for a plurality of groups comprising similar lighting means at a common location, where the parameters of each group comprise at least:
- the number of lighting means in the group, the type of lighting means, and/or a price and a value for a lifetime of the lighting means, an operating time of the lighting means, a first outlay parameter representative of a preparation outlay for changing of the lighting means, and a second outlay parameter representative of the outlay for changing of the lighting means, where a change schedule with changing times for change of all of the lighting means of individual groups is calculated, such that in a given time interval the total cost for all groups is minimized, where for each group the group costs for change and replacement of lighting means within said time interval are calculated, and where in case of identical change times for different groups the first outlay parameter is accounted for only once.
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10. Computer program for planning the operation of a plurality of lighting means with an input and storage routine for input and storage of parameters of a plurality of groups of similar lighting means at a location, where the parameters of each group comprise at least:
- the number of lighting means in the group, a type of lighting means, and/or a price and a value for a lifetime of the lighting means, an operating time of the lighting means, a first outlay parameter representative of a preparation outlay for changing of the lighting means, and a second outlay parameter representative of the outlay for changing the lighting means, and a computing routine for determining a change schedule with change times for changing of all of the lighting means of individual groups, where the computing routine calculates the change schedule such that in a given time interval the total cost of all groups is minimized, where for each group the group costs for change and replacement of lighting means within said time interval are calculated, and where in case of identical change times for different groups the first outlay parameter is accounted for only once.
Specification