Cargo securing apparatus

Patent metadata

Field	Value
Publication number	US-10328842-B2
Application number	US-201515524561-A
Country	US
Kind code	B2
Filing date	Nov 13, 2015
Priority date	Nov 14, 2014
Publication date	Jun 25, 2019
Grant date	Jun 25, 2019

Abstract

A cargo securing apparatus and a method of maintaining a user configured tension in a cargo securing element are disclosed. The apparatus includes at least one sensor arranged to measure a first and second tension in a tensile element (used to secure the cargo) at different times and a processor in data communication with the sensor. The processor is configured to receive the tension measurements from the sensor and to distinguish between acute and sustained deviations in tension based on the tension measurements. Conditionally, the processor may compare the first and second tension measurements to a user configured tension setting and determine tension correction parameters required to maintain the tension in the tensile element within a range of the user configured setting. The apparatus may include one or more manual or automated adjustment drives to adjust the tension in the tensile element in accordance with the tension correction parameters.

First claim

The invention claimed is:

1. A cargo securing apparatus comprising:
at least one sensor arranged to measure tension in at least one tensile element; and
a processor in data communication with the at least one sensor configured to receive tension measurements from the at least one sensor,
wherein the at least one sensor is configured to measure a first tension and a second tension in the at least one tensile element at different times and,
wherein the processor is configured to distinguish between acute deviations in tension and sustained deviations in tension based on the first and second tension measurements, and to conditionally compare the first and second tension measurements from the at least one sensor to a user configured value associated with the at least one tensile element and to determine tension correction parameters required to maintain tension in the at least one tensile element within a range of the user configured value.

2. The cargo securing apparatus according to claim 1 , which further includes at least one motor in communication with the processor, wherein the processor is further configured to send control signals to the at least one motor instructing the at least one motor to adjust tension in the at least one tensile element in accordance with the determined tension correction parameters in order to maintain tension within the range of the user configured value.

3. The cargo securing apparatus according to claim 2 , wherein the at least one motor is removably secured to the cargo securing apparatus.

4. The cargo securing apparatus according to claim 1 , where in the processor is further configured to determine an alarm condition based on the tension correction parameters, the alarm condition being determined when the tension measured in the at least one tensile element by the at least one sensor does not correspond to the user configured value associated with the at least one tensile element or when the tension measured in the at least one tensile element by the at least one sensor falls outside the range of the user configured value associated with the at least one tensile element.

5. The cargo securing apparatus according to claim 4 , wherein the processor activates an alarm when the alarm condition is determined.

6. The cargo securing apparatus according to claim 5 , wherein the alarm is configured to be deactivated subsequent to acknowledgement of the alarm condition by a user.

7. The cargo securing apparatus according to claim 4 , wherein the processor is configured to redetermine the alarm condition based on the distinction between the acute and sustained deviations in tension.

8. The cargo securing apparatus according to claim 4 , wherein the controller includes at least one accelerometer in data communication with the processor, and the processor is configured to receive acceleration measurements from the at least one accelerometer and determine new tension correction parameters and alarm conditions based on the acceleration measurements.

9. The cargo securing apparatus according to claim 4 , wherein the alarm is a user perceivable alarm located within a cabin of a vehicle transporting the cargo.

10. The cargo securing apparatus according to claim 4 , which includes a Human Machine Interface (HMI) configured to display at least one parameter selected form the group comprising tension measurements, acceleration measurements, user configured values and the alarm condition, and which includes a tension configuration input by means of which the user configurable value associated with the at least one tensile element is configured, a mode selector input by means of which the mode of operation of the cargo securing apparatus is selected and a reset input for acknowledging the alarm condition and deactivating the alarm.

11. The cargo securing apparatus according to claim 1 , wherein a mode of operation of the apparatus is selectable between an inactive mode, a mode wherein the cargo securing apparatus maintains tension in the at least one tensile element automatically and a mode wherein the tension in the at least one tensile element can be manually altered.

12. A method of maintaining tension in at least one tensile element of a cargo securing apparatus, the method including the steps of:
receiving, at a processor, a first tension measurement and a second tension measurement of the tension in at least one tensile element measured by at least one sensor at different times;
distinguishing between acute deviations in tension and sustained deviations in tension, based on the first and second tension measurements received from the at least one sensor; and
conditionally comparing, by the processor, the tension measurements received from the at least one sensor to a user configured value associated with the at least one tensile element and determining, by the processor, tension correction parameters required to maintain tension in the at least one tensile element within a range of the user configured value associated with the at least one tensile element.

13. The method according to claim 12 , further including the step of transmitting control signals to at least one motor of the cargo securing apparatus instructing the at least one motor to adjust the tension in the at least one tensile element in accordance with the determined tension correction parameters.

14. The method according to claim 13 , further including one or more of the steps of: determining an alarm condition based on the tension correction parameters; determining the alarm condition when the tension measured in the at least one tensile element by the at least one sensor does not correspond to the user configured value associated with the at least one tensile element; determining the alarm condition when the tension measured in the at least one tensile element by the at least one sensor is outside the range of the user configured value associated with the at least one tensile element; activating an alarm when the alarm condition is determined; and deactivating the alarm subsequent to acknowledgement of the alarm condition by a user.

15. The method according to claim 14 , further including the step of: redetermining the alarm condition based on the distinction between acute and sustained deviations in tension.

16. The method according to claim 14 , further including the steps of: receiving acceleration measurements from at least one accelerometer and determining new tension correction parameters based on the acceleration measurements; and redetermining the alarm condition based on the acceleration measurements.

17. The method according to claim 14 , further including one or more of the steps of: updating an indication components of an HMI to reflect valid parameter values; receiving input at a mode selector of the HMI and subsequently increasing or decreasing the user configured value associated with the at least one tensile element; and receiving input at a reset input of the HMI as acknowledgement of the alarm condition and subsequently deactivating the alarm.

Assignees

• Univ Stellenbosch

Inventors

• Mcnally Leo David

Classifications

• B60P7/0861 Primary

  Measuring or identifying the tension in the securing element · CPC title

• B60P7/0846

  winding up or storing of straps · CPC title

• B60P7/083

  Tensioning by repetetive movement of an actuating member · CPC title