1. A wireless network comprising:
at least two subnets, each subnet including a plurality of units configured to wirelessly communicate with each other; and
the wireless network being configured to select a local set of communication parameters for internal communication within each subnet;
wherein the wireless network is furthers configured to
select the local set of communication parameters for neighboring subnets to be unique, such that internal communication within neighboring subnets is performed by different local sets of communication parameters to prevent interference between neighboring subnets, and
select at least one common set of communication parameters that is different than the local sets of communication parameters, for neighboring subnets within the wireless network, such that communication between neighboring subnets in the wireless network may be performed simultaneous with internal communication within each subnet.
2. The wireless network according to claim 1, wherein one of the plurality of units in each subnet is a master configured to select the local set of communication parameters and the common set of communication parameters for each subnet.
3. The wireless network according to claim 1, wherein the wireless network is further configured to base the selection of the local set of communication parameters and the common set of communication parameters on a wireless environment for each subnet.
4. The wireless network according to claim 3, wherein the master is configured to establish a wireless profile WP of the wireless environment, and to select the local set of communication parameters and the common set of communication parameters for each subnet based on the established wireless profile WP.
5. The wireless network according to claim 1, wherein at least one node is configured to function as a gateway, which is adapted to communicate with an externally arranged computer.
6. The wireless network according to claim 1, wherein the local set of communication parameters and the common set of communication parameters for each subnet are used in the same communication platform.
7. A method for adapting a wireless network including at least two subnets, each subnet having a plurality of units configured to wirelessly communicate with each other using a local set of communication parameters, the method comprising:
a) selecting the local set of communication parameters for neighboring subnets to be unique, such that internal communication within neighboring subnets is performed by different local sets of communication parameters to prevent interference between neighboring subnets; and
b) selecting at least one common set of communication parameters that is different than the local sets of communication parameters, for neighboring subnets within the wireless network, such that communication between neighboring subnets in the wireless network, may be performed simultaneous with internal communication within each subnet.
8. The method according to claim 7, wherein the wireless network is configured to adapt to a wireless environment, and the method further comprises:
determining a wireless profile WP for each subnet by listening to the wireless environment within each subnet before performing steps a) and b);
modifying step a) to include selecting the local set of communication parameters for each subnet based on the determined wireless profile WP;
modifying step b) to include selecting the at least one common set of communication parameters based on the determined wireless profile WP, and
regularly repeating the step of determining the wireless profile WP and thereafter adapting the local set of communication parameters and the common set of communication parameters to changes in the wireless environment.
9. The method according to claim 8, wherein the wireless profile WP, determined before step a, is adapted based on dynamic channel density.
10. A method for forming a wireless network including at least two subnets, each subnet having a wireless profile, a plurality of units configured to wirelessly communicate with each other using a unique local set of communication parameters, and a common set of communication parameters for wireless communication with neighboring subnets that is adapted to the wireless profile of each subnet, the method comprising:
a) determining a wireless profile for each of the plurality of units;
b) comparing the wireless profile of each of the plurality of units (21, 22) to the wireless profile of accessible subnets;
c) for each unit:
c1) forming a new subnet if the wireless profile of the unit differs from the wireless profile of each accessible subnet, or
c2) connecting to one of the accessible subnets if the wireless profile of the unit matches the wireless profile of an accessible subnet, and
d) monitoring changes in the wireless profile of the plurality of units and repeating steps a-d.
11. A unit configured to be used in a wireless network according to claim 1.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A mercury-free metal halide lamp comprising:
an arc tube having a discharge space not containing mercury;
a pair of electrodes projecting into the discharge space and substantially facing each other;
xenon gas having a pressure of at least 3 atmospheres at room temperature located in the discharge space; and
at least a metal halide including indium iodide located in the discharge space,
wherein a relationship (PV)(XV)0.2>3.0 is satisfied where V represents the volume of the discharge space in mm3, P represents the electric power applied to the arc tube in W, and X represents the weight of the indium iodide in \u03bcg, and a substantially continuous emission spectrum is produced over the entire visible wavelength range.
2. The mercury-free metal halide lamp according to claim 1, wherein:
1.6\u2266(PV)\u22662.4; and
20\u2266(XV)\u226660.
3. The mercury-free metal halide lamp according to claim 2, wherein:
1.8\u2266(PV)\u22662.4;
20\u2266(XV)\u226640; and
(PV)(XV)0.2>3.6.
4. The mercury-free metal halide lamp according to claim 1, wherein the substantially continuous emission spectrum is produced by indium over the entire visible wavelength range.
5. The mercury-free metal halide lamp according to claim 1, wherein the lamp is a vehicle lamp.
6. The mercury-free metal halide lamp according to claim 1, wherein the lamp is a data projector lamp.
7. A mercury-free metal halide lamp comprising:
an arc tube having a discharge space defining a particular volume and not containing mercury;
a pair of electrodes projecting into the discharge space and substantially facing each other such that a particular power of electricity can be applied to the pair of electrodes;
xenon gas having a pressure of at least 3 atmospheres at room temperature located in the discharge space; and
at least a metal halide including a particular weight of indium iodide located in the discharge space,
wherein the volume of the discharge space, the electric power applied to the arc tube, and the weight of the indium iodide are configured such that a substantially continuous emission spectrum is produced over the entire visible wavelength range by the lamp.
8. The mercury-free metal halide lamp according to claim 7, wherein a relationship (PV)(XV)0.2>3.0 is satisfied where V represents the volume of the discharge space in mm3, P represents the electric power applied to the arc tube in W, and X represents the weight of the indium iodide in \u03bcg.
9. The mercury-free metal halide lamp according to claim 7, wherein:
1.6\u2266(PV)\u22662.4; and
20\u2266(XV)\u226660,
where V represents the volume of the discharge space in mm3, P represents the electric power applied to the arc tube in W, and X represents the weight of the indium iodide in \u03bcg.
10. The mercury-free metal halide lamp according to claim 8, wherein:
1.8\u2266(PV)\u22662.4;
20\u2266(XV)\u226640; and
(PV)(XV)0.2>3.6.
11. The mercury-free metal halide lamp according to claim 7, wherein the substantially continuous emission spectrum is produced by indium over the entire visible wavelength range.
12. The mercury-free metal halide lamp according to claim 7, wherein the lamp is a vehicle lamp.
13. The mercury-free metal halide lamp according to claim 7, wherein the lamp is a data projector lamp.
14. A mercury-free metal halide lamp comprising:
an arc tube having a discharge space defining a particular volume V and not containing mercury;
a pair of electrodes projecting into the discharge space and substantially facing each other;
xenon gas having a pressure of at least 3 atmospheres at room temperature located in the discharge space; and
at least a metal halide including a particular weight X of indium iodide located in the discharge space,
wherein the volume V in mm3 of the discharge space and the weight X in \u03bcg of the indium iodide are configured such that 20\u2266(XV)\u226660.
15. The mercury-free metal halide lamp according to claim 14, wherein a substantially continuous emission spectrum is produced over the entire visible wavelength range by the lamp.
16. The mercury-free metal halide lamp according to claim 14, wherein a relationship (PV)(XV)0.2\u22663.0 is satisfied where V represents the volume of the discharge space in mm3, P represents the electric power applied to the arc tube in W, and X represents the weight of the indium iodide in \u03bcg.
17. The mercury-free metal halide lamp according to claim 16, wherein:
1.6\u2266(PV)\u22662.4; and
20\u2266(XV)\u226660.
18. The mercury-free metal halide lamp according to claim 17, wherein:
1.8\u2266(PV)\u22662.4;
20\u2266(XV)\u226640; and
(PV)(XV)0.2>3.6.