High bandwidth and low latency hybrid communication techniques for a navigation system
A surgical tracker and method of operating the same involve the surgical tracking including one or more tracking markers, a radio frequency (RF) transmitter, an infrared (IR) receiver, and a tracker controller coupled to the RF transmitter and the IR receiver. The tracker controller obtains sensor data and operates the IR receiver to wirelessly receive a command to manage an operating parameter of the surgical tracker with respect to RF communication. The tracker controller operates the RF transmitter to wirelessly transmit the sensor data using RF communication managed in accordance with the operating parameter.
1 . A surgical tracker comprising:
one or more tracking markers;
a radio frequency (RF) transmitter;
an infrared (IR) receiver;
a tracker controller being coupled to the RF transmitter and the IR receiver, the tracker controller being configured to:
obtain sensor data;
operate the IR receiver to wirelessly receive a command to manage an operating parameter of the surgical tracker with respect to RF communication; and
operate the RF transmitter to wirelessly transmit the sensor data using RF communication managed in accordance with the operating parameter.
2 . The surgical tracker of claim 1 , wherein:
the one or more tracking markers are further defined as one or more IR light emitting diodes (LEDs); and
the tracker controller is further coupled to the one or more IR LEDs.
3 . The surgical tracker of claim 2 , wherein the tracker controller is configured to:
operate the one or more IR LEDs on a first IR channel; and
operate the IR receiver to wirelessly receive the command on a second IR channel that is different from the first IR channel.
4 . The surgical tracker of claim 2 , wherein the tracker controller is further configured to operate the IR receiver to wirelessly receive a second command to manage operation of the one or more IR LEDs.
5 . The surgical tracker of claim 2 , wherein the operating parameter coordinates both timing of wireless transmission of the sensor data from the RF transmitter and operation of the one or more IR LEDs.
6 . The surgical tracker of claim 1 , wherein the tracker controller is further configured to operate the IR receiver to wirelessly receive a second command to manage operation of the IR receiver.
7 . The surgical tracker of claim 1 , wherein the operating parameter specifies at least one transmission frequency for the RF transmitter.
8 . The surgical tracker of claim 7 , wherein the operating parameter specifies a first transmission frequency and a second transmission frequency for the RF transmitter and manages switching between the first and second transmission frequencies to implement spectrum diversity for the RF transmitter.
9 . The surgical tracker of claim 1 , wherein the operating parameter specifies an RF channel for the RF transmitter.
10 . The surgical tracker of claim 1 , wherein the operating parameter specifies a transmission power for the RF transmitter.
11 . The surgical tracker of claim 1 , wherein the operating parameter manages timing of wireless transmission of the sensor data from the RF transmitter.
12 . The surgical tracker of claim 1 , wherein the operating parameter manages a quantity of the sensor data to be wirelessly transmitted from the RF transmitter.
13 . The surgical tracker of claim 1 , comprising a sensor configured to generate the sensor data.
14 . The surgical tracker of claim 13 , wherein the sensor comprises an inertial sensor and wherein the sensor data generated by the inertial sensor comprises inertial sensor data.
15 . The surgical tracker of claim 14 , wherein the inertial data comprises measurements of one or both of: angular velocity of the surgical tracker and acceleration of the surgical tracker.
16 . The surgical tracker of claim 1 , wherein the tracker controller is configured to receive the sensor data from an external sensor that is remotely separated from the surgical tracker.
17 . The surgical tracker of claim 16 , wherein the external sensor comprises a camera.
18 . The surgical tracker of claim 16 , wherein the external sensor comprises one of: a biological sensor, a bone density sensor, an electromyography (EMG) sensor, a nerve sensory sensor, an ultrasonic sensor, an electromagnetic sensor, a temperature sensor, a humidity sensor, a pressure sensor, an impedance sensor, a voltage sensor, and a current sensor.
19 . The surgical tracker of claim 1 , wherein the tracker controller is further configured to:
obtain other data including one or more of: status data, error data, configuration data, and identification data; and
operate the RF transmitter to wirelessly transmit the other data using RF communication managed in accordance with the operating parameter.
20 . A method of operating a surgical tracker, the surgical tracker including one or more tracking markers, a radio frequency (RF) transmitter, an infrared (IR) receiver, and a tracker controller being coupled to the RF transmitter and the IR receiver, the method comprising the tracker controller performing the following steps:
obtaining sensor data;
operating the IR receiver to wirelessly receive a command for managing an operating parameter of the surgical tracker with respect to RF communication; and
operating the RF transmitter to wirelessly transmit the sensor data using RF communication managed in accordance with the operating parameter.