Low-power radar wave level gauge system

TWI939172BActive Publication Date: 2026-09-11NATIONAL TAIWAN NORMAL UNIVERSITY
View PDF 3 Cites 0 Cited by

Patent Information

Application Number
TW114132340
Authority / Receiving Office
TW · TW
Patent Type
Patents
Current Assignee / Owner
Filing Date
2025-08-25
Publication Date
2026-09-11
Estimated Expiration
2045-08-24

Smart Images

  • Figure TWG2TB001910740_001
    Figure TWG2TB001910740_001
  • Figure TWG2TB001910740_002
    Figure TWG2TB001910740_002
Patent Text Reader

Abstract

A low-power radar wave level gauge system includes: a radar wave level gauge that emits a first radar wave and receives a first reflected wave during a first sampling period; a circuit control device electrically connected to the radar wave level gauge, the circuit control device driving the radar wave level gauge to emit the first radar wave; and a battery electrically connected to the circuit control device; wherein during the first sampling period, the circuit control device causes the battery to supply power to the radar wave level gauge and puts the radar wave level gauge into an activated state; wherein during the first waiting period, the circuit control device causes the battery to stop supplying power to the radar wave level gauge and puts the radar wave level gauge into a power-off state; wherein the first sampling period follows the first waiting period.
Need to check novelty before this filing date? Find Prior Art

Claims

1. A low-power radar wave level gauge system, comprising: a radar wave level gauge that emits a first radar wave and receives a first reflected wave during a first sampling period; a circuit control device electrically connected to the radar wave level gauge, the circuit control device driving the radar wave level gauge to emit the first radar wave; and a battery electrically connected to the circuit control device; wherein during the first sampling period, the circuit control device causes the battery to supply power to the radar wave level gauge and puts the radar wave level gauge into an activated state; wherein during the first waiting period, the circuit control device causes the battery to stop supplying power to the radar wave level gauge and puts the radar wave level gauge into a power-off state; wherein the first sampling period follows the first waiting period; wherein the radar wave level gauge emits a second radar wave and receives a second reflected wave during a second sampling period; wherein during the second sampling period, the circuit control device causes the battery to supply power to the radar wave level gauge and puts the radar wave level gauge into an activated state; During a second waiting period, the circuit control device stops the battery from supplying power to the radar level gauge and puts the radar level gauge in a power-off state; the second waiting period follows the first sampling period.

2. The low-power radar wave water level gauge system of claim 1, wherein the sum of the length of the first sampling period and the length of the first waiting period is equal to the sum of the length of the second sampling period and the length of the second waiting period.

3. The low-power radar wave level gauge system of claim 1, wherein the first sampling period and the first waiting period form a first sampling cycle, and the second sampling period and the second waiting period form a second sampling cycle; wherein the first cycle length of the first sampling cycle is equal to the second cycle length of the second sampling cycle; wherein, The second sampling period follows the first sampling period.

4. The low-power radar wave level gauge system of claim 1, wherein the first radar wave is associated with a first time point data, the first reflected wave is associated with a second time point data, and the radar wave level gauge generates a time difference data based on the first time point data and the second time point data; wherein the radar wave level gauge generates a water level data based on the time difference data, and the water level data indicates a water level value at a target location.

5. The low-power radar wave water level gauge system of claim 4, wherein the low-power radar wave water level gauge system periodically samples the water level at the target location.

6. The low-power radar wave level gauge system of claim 4 further includes a communication device that is communicatively connected to the radar wave level gauge and / or the circuit control device, and that is communicatively connected to a target server; wherein the communication device transmits the first time point data and / or the second time point data and / or the time difference data and / or the level data to the target server during a data transmission period.

7. The low-power radar wave level gauge system of claim 6, wherein the communication device is in a non-sleep state during the data transmission period; wherein the communication device is in a sleep state during a waiting transmission period, the data transmission period following the waiting transmission period; wherein the communication device does not transmit data during the waiting transmission period.

8. The low-power radar wave water level gauge system of claim 7 further includes a database, the database being communicatively connected to the communication device, and the database storing transmission target data; wherein the transmission target data indicates a target network access device, the target network access device being the network access device previously connected to by the communication device; wherein when the communication device enters the non-dormant state from the sleep state, the communication device directly communicates with the target network access device according to the transmission target data, and the communication device transmits the first time point data and / or the second time point data and / or the time difference data and / or the water level data to the target server via the target network access device.

9. The low-power radar wave level gauge system of claim 8, wherein the database is communicatively connected to the radar wave level gauge, and the radar wave level gauge stores the first time point data and / or the second time point data and / or the time difference data and / or the level data in the database.

Citation Information

Patent Citations

  • Wireless radar liquid level meter and liquid level monitoring system

    CN215413940U

  • Determining emulsion properties using electromagnetic waves

    EP3264078A1

  • Cascade ultrasonic water level detection module and water level gauge capable of being disposed in a city to detect a flood at a low cost

    TW201938996A