公开(公告)号：US20240171213A1

公开(公告)日：2024-05-23

申请号：US18283279

申请日：2022-04-06

申请人： RENISHAW PLC

发明人： John Anthony STYLES ,  Paul Anthony TAYLOR

IPC分类号： H04B1/7143

CPC分类号： H04B1/7143

摘要： A frequency hopping radio communications module for a measurement system, including a measurement probe and an interface for a machine tool. The communications module is configured to transmit and/or receive radio signals using at least ten frequency channels and can operate in at least a metrology mode for communicating measurement data and a standby mode. Operation in the standby mode includes hopping between fewer frequency channels than operation in the metrology mode. In particular, operation in standby mode includes hopping between three of the at least ten frequency channels in accordance with a second hopping pattern, the three frequency channels being from different thirds of the frequency band. This allows faster frequency hopping synchronisation to be achieved and improves battery life.

公开(公告)号：US20220074727A1

公开(公告)日：2022-03-10

申请号：US17528572

申请日：2021-11-17

申请人： RENISHAW PLC

发明人： John Anthony STYLES ,  Paul Anthony TAYLOR ,  Derek MARSHALL

IPC分类号： G01B5/008 ,  G01B21/04 ,  G05B19/402

摘要： A touch trigger probe interface for a machine tool is described that includes a probe communication portion for receiving probe event information from a touch trigger probe. A machine tool communication portion is also provided for outputting probe event information to a numerical controller of the machine tool. The machine tool communication portion outputs the probe event information as digital data packets, for example over a digital data bus. The digital data packets may include a time stamp and/or the touch trigger probe interface may receive timing information from the machine tool. A touch trigger probing system and a machine tool system including the probe interface are also described.

公开(公告)号：US20240171214A1

公开(公告)日：2024-05-23

申请号：US18283065

申请日：2022-04-06

申请人： RENISHAW PLC

发明人： John Anthony STYLES ,  Paul Anthony TAYLOR

IPC分类号： H04B1/7156 ,  G01B5/008

CPC分类号： H04B1/7156 ,  G01B5/008 ,  G01B2210/58

摘要： A frequency hopping radio communications module includes a clock and a memory for storing a hopping pattern. The communications module is switchable between first, second, and third modes. The first and second modes respectively transmit and/or receive data using a series of frames having first and second frame times. The first frame time is equal to, or an integer multiple of, the base time interval. The second frame time is an integer multiple of the first frame time. Operation in the third mode includes transmitting and/or receiving data using a series of frames having a third frame time, the third frame time being an integer multiple of the second frame time. Each successive base time interval is associated with a successive frequency channel of the hopping pattern sequence and each frame uses the frequency channel associated with the base time interval that occurs at the start of that frame.

公开(公告)号：US20240178879A1

公开(公告)日：2024-05-30

申请号：US18283250

申请日：2022-04-06

申请人： RENISHAW PLC

发明人： John Anthony STYLES ,  Paul Anthony TAYLOR

IPC分类号： H04B1/7156

CPC分类号： H04B1/7156

摘要： A frequency hopping radio communications system includes a measurement station having a first clock and an interface station having a second clock. The measurement station transmits measurement information from a measurement event. The measurement information includes timing information relating the measurement event to the first clock. The interface station receives the measurement information and generates a measurement output including timing information relative to the second clock. One of the first and second clocks is designated as a master clock and a periodic clock adjustment of the other is performed to maintain synchronisation with the designated master clock. The timing information of the measurement output generated by the interface station takes into account any of the periodic clock adjustments that are applied between the occurrence of the measurement event and the generation of the measurement output. In this manner, jitter is reduced and metrology performance is improved.