Radio frequency transceiver with an antenna having selectable polarization
A battery management system includes a primary module in wireless communication with a plurality of sensing, or secondary, modules over a range of frequencies within a predetermined frequency band. Each of the primary module and the sensing modules can be configured to transmit with an antenna polarization setting chosen from a plurality of polarization settings. Each of the sensing modules is configured to communicate with the primary with a predetermined one of its polarization settings for each channel. The primary module is also configured to communicate with a respective secondary module with a predetermined polarization setting for each channel.
1. In a battery management system having a primary transceiver and a plurality of secondary transceivers, each of the primary and secondary transceivers provided with adjustable antenna polarization settings, a method of configuring the primary and secondary transceivers comprising:
for each unique pair of the primary transceiver and a respective secondary transceiver:
for each combination of primary and secondary polarization settings:
for each channel in a range of channels:
transmitting a signal from the secondary to the primary;
measuring at least one parameter of the signal received at the primary;
storing the at least one measured signal parameter for the respective primary and secondary polarization settings combination and channel;
determining, for each secondary transceiver, an operating polarization setting for each channel, the determination being a function of the stored at least one measured signal parameters for the respective secondary transceiver;
determining a primary transceiver operating polarization setting for each unique combination of primary transceiver, secondary transceiver and channel, the determination being a function of the stored at least one measured signal parameters for the respective secondary transceiver;
storing, in each secondary transceiver, the respective determined operating polarization setting for each channel; and
storing, in the primary transceiver, the primary transceiver operating polarization settings for the unique combinations of primary transceiver, secondary transceiver and channel.
2. The method of claim 1 , wherein each channel is set to a corresponding frequency value.
3. The method of claim 1 , wherein the at least one measured signal parameter is signal strength.
4. The method of claim 1 , wherein each of the primary and secondary transceivers is configurable in at least two different polarization settings.
5. In a battery management system having a primary transceiver and a plurality of secondary transceivers, each of the primary and secondary transceivers provided with adjustable antenna polarization settings, a method of configuring the primary and secondary transceivers comprising:
(a) selecting a unique pair comprising the primary transceiver and a respective secondary transceiver;
(b) setting the selected unique pair of primary and secondary transceivers of step (a) to a unique combination of respective polarization settings;
(c) selecting a channel in a range of channels;
(d) transmitting a signal from the secondary to the primary of the pair of step (a) on the selected channel of step (c);
(e) measuring at least one parameter of the transmitted signal as received at the primary;
(f) storing the at least one measured signal parameter for the respective primary and secondary polarization settings combination of step (b) and selected channel of step (c);
(g) repeating steps (c)-(f) for each channel in the range of channels for the primary and secondary pair in step (b);
(h) repeating steps (b)-(g) for each unique combination of respective polarizations settings for the primary and secondary pair in step (a);
(i) repeating steps (a)-(h) for each unique pair of primary and secondary;
(j) determining, for each secondary transceiver, an operating polarization setting for each channel, the determination being a function of the stored at least one measured signal parameters for the respective secondary transceiver;
(k) determining a primary transceiver operating polarization setting for each unique combination of primary transceiver, secondary transceiver and channel, the determination being a function of the stored at least one measured signal parameters for the respective secondary transceiver;
(l) storing, in each secondary transceiver, the respective determined operating polarization setting for each channel; and
(m) storing, in the primary transceiver, the primary transceiver operating polarization settings for the unique combinations of primary transceiver, secondary transceiver and channel.
6. The method of claim 5 , wherein each channel is set to a corresponding frequency value.
7. The method of claim 5 , wherein the at least one measured signal parameter is signal strength.
8. The method of claim 5 , wherein each of the primary and secondary transceivers is configurable in at least two different polarization settings.