Monitoring system
A wearable device includes one or more sensors of information from a subject. The wearable device may have an electronic assembly supported by a base. The electronic assembly may include a sensor data collection system configured to control collection of sensor data related to one or more characteristics of a subject and one or more processors. the sensor data collection system may include a controller configured to control sequencing and scheduling of the sensor data collection, and a buffer configured to receive and buffer data corresponding to the sensor data collected from the one or more sensors in accordance with a signal provided by the controller. The one or more processors may be configured to receive the buffered data from the buffer in accordance with a wake signal; process the received data; and output the processed data. Scheduling and sequencing the sensor data collection by the sensor data collection system may be decoupled from the processor such that the processor may be in a low-power sleep mode during data collection and in a normal power mode to process data received from the buffer.
1. A monitoring system, comprising:
a sensor data collection system configured to control collection of sensor data related to one or more characteristics of a subject, including:
a system bus;
a peripheral bus;
a scheduler, coupled to the system bus via the peripheral bus, configured to control sequencing and scheduling of the sensor data collection; and
a buffer configured to receive and buffer data corresponding to the sensor data collected from one or more sensors in accordance with a signal provided by the scheduler; and
one or more processors configured to:
receive the buffered data from the buffer in accordance with a wake signal;
process the received data; and
output the processed data;
wherein the sequencing and scheduling of the sensor data collection by the sensor data collection system is decoupled from the one or more processors;
wherein the one or more processors are configured to enter a low-power sleep mode during the sensor data collection by the sensor data collection system, the low-power sleep mode preventing the one or more processors from the receive the buffered data, the process the received data, and the output the processed data;
wherein the one or more processors are configured to exit the low-power sleep mode and resume the receive the buffered data from the buffer in accordance with the wake signal; and
wherein in response to the buffer being full, the buffer provides the wake signal to the one or more processors.
2. The monitoring system of claim 1 , further comprising:
an analog-to-digital converter (ADC) configured to receive analog sensor data, convert the analog sensor data into digital sensor data, and output the digital sensor data in accordance with the first signal;
wherein the data received and buffered by the buffer includes the digital sensor data output by the ADC.
3. The monitoring system of claim 2 , further comprising:
a transmitter configured to receive and transmit the processed data output by the one or more processors.
4. The monitoring system of claim 3 , further comprising:
the one or more sensors configured to provide the sensor data; and
a base configured to support the one or more sensors, the sensor data collection system, and the one or more processors.
5. The monitoring system of claim 4 , further comprising:
a transmitter configured to receive and transmit the processed data output by the one or more processors;
wherein the base is configured to support the transmitter.
6. The monitoring system of claim 4 , further comprising:
one or more batteries configured to supply power to the sensor data collection system and the one or more processors;
wherein the one or more batteries are supported by the base.
7. The monitoring system of claim 4 , wherein the one or more sensors include an ECG sensor and a respiratory sensor.
8. The monitoring system of claim 1 , wherein the wake signal is provided to the one or more processors in accordance with an external interrupt.
9. The monitoring system of claim 1 , wherein the wake signal is provided to the one or more processors in accordance with expiration of a timer.
10. The monitoring system of claim 1 , wherein the sensor data collection system further includes a register control coupling the scheduler to the peripheral bus.
11. A wearable device, comprising:
a base; and
an electronic assembly supported by the base;
wherein the electronic assembly includes:
a sensor data collection system configured to control collection of sensor data related to one or more characteristics of a subject, including:
a system bus;
a peripheral bus;
a scheduler, coupled to the system bus via the peripheral bus, configured to control sequencing and scheduling of the sensor data collection; and
a buffer configured to receive and buffer data corresponding to the sensor data collected from one or more sensors in accordance with a signal provided by the scheduler; and
one or more processors configured to:
receive the buffered data from the buffer in accordance with a wake signal;
process the received data; and
output the processed data;
wherein the sequencing and scheduling of the sensor data collection by the sensor data collection system is decoupled from the one or more processors;
wherein the one or more processors are configured to enter a low-power sleep mode during the sensor data collection by the sensor data collection system, the low-power sleep mode preventing the one or more processors from the receive the buffered data, process the received data, and output the processed data;
wherein the one or more processors are configured to exit the low-power sleep mode and resume receiving the buffered data in accordance with the wake signal; and
wherein in response to a buffer being full, the buffer provides the wake signal to the one or more processors.
12. The wearable device of claim 11 , wherein the electronic assembly further includes:
an analog-to-digital converter (ADC) configured to receive analog sensor data, convert the analog sensor data into digital sensor data, and output the digital sensor data in accordance with the first signal;
wherein the data received and buffered by the buffer includes the digital sensor data output by the ADC.
13. The wearable device of claim 11 , further comprising:
the one or more sensors configured to provide the sensor data; and
a base configured to support the one or more sensors, the sensor data collection system, and the one or more processors.
14. The wearable device of claim 13 , further comprising:
a transmitter configured to receive and transmit the processed data output by the one or more processors;
wherein the base is configured to support the transmitter.
15. The wearable device of claim 13 , further comprising:
one or more batteries configured to supply power to the sensor data collection system and the one or more processors;
wherein the one or more batteries are supported by the base.
16. The wearable device of claim 11 , wherein the wake signal is provided to the one or more processors in accordance with an external interrupt.
17. The wearable device of claim 11 , wherein the one or more sensors include an ECG sensor and a respiratory sensor.