US Pat. No. 9,274,011

LOAD MEASUREMENT OF THE LOAD RECEIVER OF HOISTING DEVICES

HIRSCHMANN AUTOMATION AND...

11. An apparatus for determining the force of a lifting apparatus acting on a grab that is movable relative to a component
of the lifting apparatus, the apparatus comprising:
a transmitter mounted on and immovable relative to the grab, that wirelessly transmits a signal via a surface acoustic wave
transmitted along a surface of the lifting apparatus, the acoustic wave carrying the force-representing signal;

a controller of the lifting apparatus receiving the signal carried by the surface acoustic wave from the transmitter; and
a power supply on the grab that supplies electrical power for the sensor or the transmitter;
wherein the controller determines the force on the grab by a change in characteristics of the acoustic wave generated by the
transmitter.

US Pat. No. 9,191,268

EXTENSION FOR THE SIMPLE NETWORK MANAGEMENT PROTOCOL (SNMP) IN ORDER TO ASCERTAIN INFORMATION ON THE STATUS OF SET-PDUS

HIRSCHMANN AUTOMATION AND...

1. A method of operating a network management station that exchanges data with network devices connected to the station via
bus connections by the SNMP protocol, the method comprising the steps of:
detecting with an agent in each network device the state of the network device and making adjustments or triggering actions
in the device by communicating with the network management station via SET and GET commands;

conducting an error detection or an error notification between the network management station and the respective agent via
the SNMP protocol, wherein conducting the error detection or error notification comprises receiving, by the network management
station from a first agent of a first network device, a first SNMP response, generated in response to a first SET request;
and

carrying out a further data exchange between the network management station and the first agent of the first network device
in addition to the data exchange provided according to the SNMP protocol in order to exchange through this further data exchange
further data contents between the network management station and the first agent, the further data exchange comprising:

transmitting, by the network management station to the first agent, a GET request identifying the first SET request, responsive
to receipt of the first SNMP response, and

receiving, by the network management station from the first agent, a second SNMP response, generated in response to the GET
request, indicating the first SET request resulted in either success or an error.

US Pat. No. 9,444,191

SHIELDED PLUG CONNECTOR AND METHOD FOR PRODUCING A SHIELDED PLUG CONNECTOR

HIRSCHMANN AUTOMATION AND...

1. A shielded plug connector for use with a cable having a plurality of electrical conductors surrounded by a shield braid,
the connector comprising:
an electrically nonconductive contact support;
an electrically conductive shield sleeve surrounding the contact support;
respective contact members at ends of the electrical conductors in the shield sleeve and held by the nonconductive contact
support;

an electrically conductive one-piece shield shell extending from the shield braid at an end of the cable to the contact support
surrounded by the shield sleeve, in electrical contact with the shield sleeve, and formed along the cable with a throughgoing
slot so as to be radially compressible; and

means for compressing the shield shell inward at the slot against the cable and the shield braid thereof.

US Pat. No. 9,398,495

COMPLETELY REDUNDANT CONNECTION AND HANDOVER IN CELLULAR INDUSTRIAL RADIO NETWORKS

HIRSCHMANN AUTOMATION AND...

1. A system for providing reliable data transmission, comprising:
a stationary receiver comprising:
a first hard-wired connection to a first network, the first network connected to a first access point of a radio cell, the
first hard-wired connection configured to communicate to a device of a mobile user via a first wireless transmitter of the
first access point;

a second hard-wired connection to a second network, the second network separate from the first network and also connected
to the first access point of the radio cell, the second hard-wired connection configured to communicate to the device of the
mobile user via a second wireless transmitter of the first access point;

a third hard-wired connection to a third network; and
a redundancy box configured to selectively couple communications via the third hard-wired connection to one of the first hard-wired
connection and second hard-wired connection.

US Pat. No. 9,856,119

MEASURING JIB LENGTH OF A CRANE

HIRSCHMANN AUTOMATION AND...

1. A method of wear-free determination of an overall length of a jib of a crane, the method comprising the steps of:
feeding a signal into the jib at a first point on the jib;
detecting the signal at a second point on the jib; and
determining the overall length of the jib from the time required for the signal to pass from the first point to the second
point.

US Pat. No. 9,699,815

SYSTEMS AND METHODS FOR AUTOMATIC WIRELESS COUPLING

HIRSCHMANN AUTOMATION AND...

11. A system for establishing a connection between access points, comprising:
a first device comprising a wireless transmitter, a wireless receiver, a candidate selector, and a candidate credit counter;
wherein the wireless receiver is configured to receive, from a second device, a broadcast packet comprising an identifier
of the first device and a first credit value for the first device maintained by the second device;

wherein the candidate selector is configured to
determine that the first credit value for the first device maintained by the second device exceeds a predetermined threshold,
and

determine that a second credit value for the second device maintained by the first device via the candidate credit counter
exceeds the predetermined threshold; and

wherein the wireless transmitter is configured to establish a connection with the second device, responsive to the determination
that the first credit value exceeds the predetermined threshold and the second credit value exceeds the predetermined threshold.

US Pat. No. 9,769,041

METHOD FOR IDENTIFYING CONNECTION ERRORS OF A MULTICONDUCTOR DATA LINE

HIRSCHMANN AUTOMATION AND...

1. A method, comprising:
transmitting test messages, during a predetermined time interval, on a first multiconductor data line between a first data
port of a first network device and a second data port of a second network device of a plurality of network devices interconnected
through multiconductor data lines in a network having a predetermined topology;

determining a number of cyclic redundancy check (CRC) errors that have occurred during the predetermined time interval for
the test messages transmitted between the first data port and the second data port;

determining an amount of data transmitted during the predetermined time interval between the first data port and the second
data port;

calculating an error rate based on the determined number of CRC errors within the predetermined time interval and the amount
of data transmitted during the predetermined time interval by dividing (i) a sum of the number of CRC errors and the amount
of transmitted data, multiplied by a calculation factor; by (ii) the amount of transmitted data; and

identifying a lack of functional reliability of the first multiconductor data line, based on the calculated error rate.

US Pat. No. 9,774,545

METHOD OF OPERATING A NETWORK ACCORDING TO MMRP STANDARD

HIRSCHMANN AUTOMATION AND...

1. A method for operating a network having terminals and switches connected to one another via data lines, the method comprising
the steps of:
transmitting a multicast multiple MAC registration protocol (MMRP) data packet from a data source via at least one of the
switches and one of the data lines to a predetermined one of the terminals intended to receive the multicast MMRP data packet;

entering at one port of one of the switches to which is connected another one of the terminals that is not MMRP-capable a
multicast address as a static entry of the other non-MMRP-capable terminal connected to the one port;

transmitting the multicast address to the at least one switch connected thereto; and
when the static entry is no longer needed:
erasing the static entry at the switch to which the other non-MMRP-capable terminal is connected, and then
transmitting from the one switch to which the other non-MMRP-capable terminal is connected a data packet representing the
erasure to the at least one switch connected thereto.

US Pat. No. 10,397,968

SYSTEMS AND METHODS FOR AUTOMATIC WIRELESS COUPLING

HIRSCHMANN AUTOMATION AND...

1. A method for wireless channel selection, comprising:scanning, by a first device, a plurality of broadcast channels for a broadcast by a second device;
determining, by the first device, whether a broadcast by the second device comprising a predetermined topology configuration identifier has been detected;
selecting, by the first device, a first channel of the plurality of broadcast channels for use by a discovery protocol, responsive to the determination;
broadcasting via the first channel, by the first device, a device identifier of the first device;
receiving, by the first device from the second device on the selected first channel, a broadcast packet comprising the device identifier of the first device and a first credit value for the first device maintained by the second device; and
establishing, by the first device with the second device, a connection, responsive to a determination that the first credit value for the first device maintained by the second device exceeds the predetermined threshold and that a second credit value for the second device maintained by the first device exceeds the predetermined threshold.

US Pat. No. 10,404,560

DISCONNECTION DIAGNOSIS

Hirschmann Automation and...

1. A method, comprising:transmitting one or more messages on a first multiconductor data line between a first data port of a first network device and a second data port of a second network device;
determining a number of cyclic redundancy check (CRC) errors that have occurred during a predetermined time interval for the test messages and a number of frame fragments transmitted between the first data port and the second data port;
determining an amount of transmitted data during the predetermined time interval between the first data port and the second data port;
calculating an error rate by dividing (i) a sum of the number of CRC errors and the number of frame fragments, multiplied by a calculation factor; by (ii) the amount of transmitted data; and
identifying a lack of functional reliability of the first multiconductor data line, based on the calculated error rate.

US Pat. No. 10,404,416

REDUNDANT TRANSMISSION SYSTEM WITH PRP AND FAULT PREDICTION

HIRSCHMANN AUTOMATION AND...

1. A method of exchanging data between a first network and a second network, the method comprising the steps of:feeding the data of the first network to duplication means;
transmitting the data as packets from the duplication means wirelessly to separator means via at least two transmission paths using PRP Parity Redundancy Protocol;
forwarding the data from the separator means to the connected second network;
first determining whether or not a data packet was transmitted by counting every data packet transmitted without faults and comparing a count of fault-free transmitted data packets to a total number of transmitted data packets; and
thereafter, based on the first determination, determining whether or not the transmission system is operating in a fault-free manner by calculating based on the count determined by the comparison a failure likelihood.