System for making available information which represents a vibration state for the operation of vibration-emitting machines, in particular construction machines

• US 9,476,761 B2
• Filed: 05/18/2012
• Issued: 10/25/2016
• Est. Priority Date: 05/19/2011
• Status: Active Grant

• Current Assignee: Hamm AG (Deere & Company)
• Original Assignee: Hamm AG (Deere & Company)
• Inventors: Olschewski, Thomas
• Primary Examiner(s): SAINT SURIN, JACQUES M
• Application Number:
  US14/118,343
• Publication Number:
  US 20140083195A1
• Time in Patent Office: 1,621 Days
• Field of Search: 736/49
• US Class Current: 1/1
• CPC Class Codes: E01C 19/288 adapted for monitoring characteristics of the material being compacted, e.g. indicating resonant frequency, measuring degree of compaction, by measuring values, detectable on the roller; using detected values to control operation of the roller, e.g. automatic adjustment of vibration responsive to such measurements
• CPC Class Codes: G01H 17/00 Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups see provisionally also G01H1/00

Abstract

A system for making available information which represents a vibration state for the operation of vibration-emitting machines, in particular construction machines, comprising at least one measuring station (12, 12′, 12″) having at least one sensor (20) for detecting at least one variable which relates to the vibration state and having a radio-transmitting unit (24) for outputting a radio output signal which relates to the variable, or at least one reception station (16, 16′, 16″) for picking up the radio output signal of the at least one measuring station (12, 12′, 12″), is characterized in that the at least one measuring station (12, 12′, 12″) comprises an evaluation unit (22) which picks up a sensor signal from the at least one sensor (20) and has the purpose of making available an evaluation signal, representing the vibration state, on the basis of the sensor signal, wherein the radio-transmitting unit (24) generates the radio output signal on the basis of the evaluation signal.

Claims

1. System for providing information representing a vibration state for the operation of vibration-emitting construction machines, said system comprising:

at least one measuring station with at least one sensor for recording at least one variable related to the vibration state, and with a radio-transmitting unit for outputting a radio output signal related to the variable;

at least one reception station for receiving the radio output signal of the at least one measuring station;

wherein the at least one measuring station comprises an evaluation unit for receiving a sensor signal from the at least one sensor for generating an evaluation signal representing the vibration state based on the sensor signal;

wherein the radio-transmitting unit generates the radio output signal on the basis of the evaluation signal; and

wherein a plurality of measuring stations and/or reception stations is provided, at least one measuring station and/or at least one reception station having a radio-receiving unit for receiving the radio output signal of at least one other measuring station, the radio-transmitting unit of the at least one measuring station having a radio-receiving unit and/or a radio-transmitting unit of the at least one reception station having a radio-receiving unit being arranged for generating a radio output signal based on a radio output signal received from another measuring station and/or from another reception station.

2. System according to claim 1, wherein the at least one reception station comprises:

a radio-receiving unit for receiving the radio output signal from at least one measuring station,

a signal processing unit for generating vibration display information for an optical and/or acoustical vibration state reproduction unit and/or for generating vibration state reaction trigger information to trigger a vibration-emitting machine.

3. System according to claim 1 wherein at least one sensor is an acceleration sensor and/or a speed sensor.

4. System according to claim 1, wherein the evaluation unit is designed to generate the evaluation signal based on one or more of the following information:

a location information that represents a measuring location,

a measuring zone (Z, Z′

) around the measuring location,

a vibration threshold value information,

a vibration type information that represents the type of vibration,

a vibration type information that represents the type of vibration in connection with a vibration type threshold value information,

a measuring time information, and

a measuring time information in connection with a measuring time threshold value information.

5. System according to claim 4, wherein the evaluation unit has at least one associated interface for inputting at least one information and/or configuration information used as a basis in connection with the sensor signal to generate the evaluation signal.

6. System according claim 1, wherein the evaluation unit has an associated memory unit for storing the sensor signal of at least one sensor and/or the evaluation signal, preferably for the later generation of the radio output signal.

7. System according to claim 1, wherein the radio output signal output by the at least one measuring station includes identification information that identifies the measuring station.

8. System according to claim 7, wherein the identification information includes information about the measuring location and/or a measuring zone around the measuring location of the measuring station.

9. System according to claim 1, wherein the radio output signal generated by the radio-transmitting unit of the at least one measuring station or the at least one reception station corresponds to the radio output signal received from another measuring station or reception station.

10. System according to claim 1, wherein a plurality of measuring stations and/or reception stations form a meshed network for transmitting information to at least one reception station.

11. Method for operating a vibration-emitting construction machine on the basis of information representing a vibration state the method comprising steps of:

defining a measuring zone in association with each one of a plurality of measuring stations;

generating information representing a vibration state in association with each one of the measuring zones by means of the measuring stations; and

operating the machine on the basis of the information representing the vibration state in one of the measuring zones only if said machine is located in the measuring zone or is moving into the measuring zone.

12. Method according to claim 11, wherein the measuring zone is defined based on one or more of:

properties of the substrate in the area of the measuring zone;

type of measuring location, and

type of the vibrations.