IP Library Granted Patent US 10,436,624
Granted Patent B2
US 10,436,624 · App. 15/684,689 · Granted Oct 8, 2019

Water level monitoring for multiple water tanks of sewer cleaning vehicle

Inventor: Jared James Brodbeck (Metamora, IL)
Assignee: Federal Signal Corporation
G01F23/14E03F7/10E03F9/007B08B9/035B08B9/0321
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Quick Facts
Patent No.
US 10,436,624
App. No.
15/684,689
Granted
Oct 8, 2019
Kind
B2
Abstract

A sewer cleaning vehicle includes a monitoring device for detecting a water level in a plurality of water tanks using a sensor engaged with the water tanks. The vehicle can present to an operator the water level together with operational conditions of the vehicle. The vehicle can continuously fill the water tanks based on the water level, and inform the operator of the water tanks having a water level lower than a user-configurable threshold.

Claims (55)

1. A sewer cleaning vehicle comprising:

a plurality of water tanks being in fluid communication with one another and having a single outlet connected to a water pump;

a sensor engaged with the plurality of water tanks and configured to measure a water height in the plurality of water tanks; and

a monitoring device including:

a processing unit configured to calculate a water level in the plurality of water tanks based on the water height; and

a display device configured to display the water level;

wherein the sensor includes a pressure sensor.

2. The sewer cleaning vehicle of claim 1 , wherein the processing unit is configured to:

obtain a lookup table for the plurality of water tanks; and

calculate the water level based on the lookup table and the water height.

3. The sewer cleaning vehicle of claim 1 , wherein the water level is represented as a single value.

4. The sewer cleaning vehicle of claim 3 , wherein the single value is a percent value.

5. The sewer cleaning vehicle of claim 1 , wherein the water level is displayed in the display device along with operational conditions of the vehicle.

6. The sewer cleaning vehicle of claim 1 further comprising:

a vehicle bed;

a debris tank configured to collect debris from a sewer pipe; and

the water pump, the water pump configured to supply water from the plurality of water tanks.

7. The sewer cleaning vehicle of claim 1 , wherein at least one of the plurality of water tanks has a different dimension than the other water tanks.

8. The sewer cleaning vehicle of claim 1 , wherein at least one of the plurality of water tanks is arranged at a different level than the other water tanks.

9. The sewer cleaning vehicle of claim 1 , wherein the monitoring device is configured to:

determine whether the water level is below a fill start threshold; and

upon determining that the water level is below the fill start threshold, operate to fill the plurality of water tanks with water.

10. The sewer cleaning vehicle of claim 9 , wherein the monitoring device is configured to:

receive a user input of the fill start threshold.

11. The sewer cleaning vehicle of claim 1 , wherein the monitoring device is configured to:

determine whether the water level is above a fill end threshold; and

upon determining that the water level is above the fill end threshold, operate to stop filling the plurality of water tanks with water.

12. The sewer cleaning vehicle of claim 11 , wherein the monitoring device is configured to:

receive a user input of the fill end threshold.

13. The sewer cleaning vehicle of claim 1 , wherein the monitoring device is configured to:

determine whether the water level is below a low water threshold; and

upon determining that the water level is below the low water threshold, generate a notification to inform an operator that the water level is below the low water threshold.

14. The sewer cleaning vehicle of claim 13 , wherein the monitoring device is configured to:

receive a user input of the low water threshold.

15. The sewer cleaning vehicle of claim 13 , wherein the notification is displayed in a display device of the monitoring device.

16. A method for monitoring a water volume in a plurality of water tanks mounted in a sewer cleaning vehicle, the plurality of water tanks being in fluid communication with one another and having a single outlet connected to a water pump, the method comprising:

monitoring a water height in the plurality of water tanks;

calculating a water level based on the water height; and

displaying the water level using a display device;

wherein monitoring a water height includes:

monitoring a water pressure in the plurality of water tanks using a pressure sensor; and

calculating the water height based on the water pressure.

17. The method of claim 16 , wherein the water level is represented as a single percent value.

18. The method of claim 16 further comprising:

obtaining a lookup table for the plurality of water tanks;

wherein calculating a water level is based on the lookup table and the water height.

19. The method of claim 16 , further comprising:

determining whether the water level is below a fill start threshold;

upon determining that the water level is below the fill start threshold, operating to fill the plurality of water tanks with water;

determining whether the water level is above a fill end threshold;

upon determining that the water level is above the fill end threshold, operating to stop filling the plurality of water tanks with water;

determining whether the water level is below a low water threshold; and

upon determining that the water level is below the low water threshold, generating a notification to inform an operator that the water level is below the low water threshold.

20. The method of claim 19 , further comprising:

receiving a user input of the fill start threshold, the fill end threshold, and the low water threshold.

Assignments (2)
SECURITY INTEREST Recorded Aug 5, 2019
From: FEDERAL SIGNAL CORPORATION
To: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS ADMINISTRATIVE AGENT
Reel/Frame 049964/0340 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 27, 2018
From: BRODBECK, JARED JAMES
To: FEDERAL SIGNAL CORPORATION
Reel/Frame 047590/0624 →
Continuity (1)
Related Publication 20190063978A1 · Feb 28, 2019