Abstract:
A land vehicle assembly is provided with a platform for an operator workspace. A control panel is supported upon the platform in electrical communication with the land vehicle. A caution switch is supported upon the platform in electrical communication with the control panel to provide a signal to the control panel indicative of a caution event. A cable is connected to the caution switch to extend across the control panel. The cable is spaced apart from the control panel so that a predetermined force upon the flexible member actuates the caution switch without significantly obstructing the control panel. A manual force upon the flexible member expands the operator workspace. The control panel is programmed to control a mobile operation of the land vehicle, and discontinue the mobile operation of the land vehicle in response to receipt of the caution event signal.
Abstract:
A safety system is proved for an elevating machine having a base part and an elevating part. The safety system includes a plurality of sensor assemblies for sensing an electric or magnetic field, which are mounted on different parts of the elevating machine. A data processor is connected to receive sensor signals from the sensor assemblies. A memory stores data relating to numerous patterns of sensor signals associated with the interaction between the elevating machine and an electric or magnetic field. The data processor compares the received sensor signals with the stored data and identifies the positional relationship between the elevating machine and a source of the sensed field.
Abstract:
Es wird vorgeschlagen eine Vorrichtung zur Überwachung von Betriebsdaten und/oder Bestimmung der Ablegereife eines Seils (1) beim Einsatz an Hebezeugen, insbesondere Kranen, mit einer Erfassungseinrichtung (2) zum Erfassen zumindest einer die Ablegereife beeinflussenden Seilnutzungskenngröße sowie einem Datenspeicher (5) zum Speichern der Seilnutzungskenngröße und/oder einer daraus abgeleiteten Betriebskenngröße, dadurch gekennzeichnet, dass der Datenspeicher (5) in das Seil (1) integriert ist, wobei eine mit der Erfassungseinrichtung (2) verbundene Lese- und/oder Schreibeinheit (4) zum Beschreiben des Datenspeichers (5) bei am Hebezeug montierten Seil (1) vorgesehen ist. Es wird auch vorgeschlagen ein Hebezeug, insbesondere Kran wie Turmdrehkran, Hafenkran oder Teleskopkran, mit einem Seil (1) und dieser genannten Vorrichtung.
Abstract:
There is provided a computer program product, a mobile device capable of wireless communications and method for a mobile device capable of wireless communications with a payload handling apparatus for handling payload in a payload handling area. A message from the payload handling apparatus is received (304) and on the basis of the received message it is determined (306) when the mobile device is within the payload handling area of the payload handling apparatus.
Abstract:
Verfahren zum dynamischen Erkennen eines Fehlbetriebs einer Lasthubeinrichtung, wobei die Lasthubeinrichtung einen Kraftsensor aufweist, mit den folgenden Schritten: Überwachen eines Signals des Kraftsensors, auf einen Anstieg; Definieren einer Zeitdauer, die zum Anheben des Lastaufnahmemittels, erforderlich ist; Überwachen des Signals auf ein Überschreiten der Überlastschwelle; wenn die Überlastschwelle während der definierten Zeitdauer nicht überschritten wird, Bestimmen einer Gewichtskraft innerhalb der definierten Zeitdauer aus dem Signal, und, Festlegen der bestimmten Gewichtskraft als Basislast; Festlegen einer dynamischen Sprungschwelle als nominelle Überlastschwelle, die größer als die Basislast und die kleiner als die bisherige Überlastschwelle ist; und Überwachen des Signals, ob das Signal größer oder gleich der Sprungschwelle wird, und Erzeugen des Abschaltsignals, wenn das Signal größer oder gleich der Sprungschwelle ist.
Abstract:
A safety device against the risk of accidental electric contact between a machine (1) for yards or for handling material or the like and an electric cable under voltage (3), comprising a sensor (7) for sensing the electric field or electromagnetic, located in at least one predetermined point of the machine on a zone of end or on an arm (12), and an emergency device comprising means for blocking the displacement of the machine when the machine reaches a predetermined critical distance of danger from the electric cable under voltage, and/or warning means (9) of proximity associated with the sensors (7), capable of emitting a warning signal that informs the operator at reaching a critical danger position and at approaching to the critical distance. The invention comprises also a method to avoid the risk of electric contact between a machine for yards or for handling material or the like and an electric cable under voltage, having the steps of arranging a sensor (7) of electric or electromagnetic field located in at least one predetermined point of said machine (1); connection of said sensor (7) to means for blocking said machine (1) capable of blocking the displacement when the machine reaches a predetermined critical distance of danger from the electric cable under voltage; connection of,the sensor to proximity warning means, associated with the sensor, capable of emitting a warning signal towards an operator, when entering a critically dangerous region, wherein said sensor (7) detects the intensity of the electric or electromagnetic field emitted by said electric cables (3), sending a signal of activation of said blocking and/or warning means (9) for values of the electric or electromagnetic field predetermined- above critical threshold values.
Abstract:
A crane operating aid (44) comprises a load moment computer (Figs. 3, 4, & 5) and a number of transducers (156, 158, and 56) which monitor crane parameters such as boom length, boom angle, and boom reaction forces. The computer then calculates the percentage of load capacity as a function of the crane manufacturer's published load rating tables. The computer console (46) is disposed near the crane operator to facilitate interaction between the two and actively solicits crane condition information from him through a prompting scheme which initially poses a series of status requests (194) to the operator. The operator must supply appropriate responses to the status requests prior to operating the crane. The computer can also display any of the input parameters monitored by the transducers (Fig. 7). A plurality of alarms (188, 232) of ordered urgency are provided which indicate various over limit conditions. Both minimum and maximum operator controlled set points (230) are provided. The series of prompting crane status requests can be repeated automatically, such as with each start-up of the crane, or at the operator's option, such as when a change of crane status occurs during operation. The crane operating aid is easily adapted to use with lattice or telescoping type cranes.