Sensor system
A sensor system, which includes multiple sensors configured to transmit and receive continuous waves of frequency-modulated chirp signals by using radio waves, includes a storage section that stores multiple chirp patterns having different patterns of the chirp signals, and a setting section that selects a different chirp pattern for each sensor from the multiple chirp patterns and sets the selected chirp pattern in association with the sensor.
1 . A sensor system, comprising:
a loader configured to move along a mounting line within a movement range and to exchange a feeder that contains components for mounting;
multiple sensors of the loader configured to transmit and receive continuous waves of frequency-modulated chirp signals by using radio waves to determine a distance to an object, the multiple sensors including a master sensor and slave sensors, the master sensor sending and receiving detection results of the master sensor and the slave sensors;
a storage section configured to store multiple chirp patterns having different patterns of the chirp signals; and
a setting section configured to
acquire a number of the multiple sensors that have been previously configured with one of the patterns of the chirp signals,
acquire a ranking of the multiple sensors in the sensor system, the ranking based on the master sensor set to a rank 0 and each of the slave sensors ranked sequentially from the rank 0, and
select a different chirp pattern for each sensor from the multiple chirp patterns in accordance to a sequence of the number plus the ranking and set the selected chirp pattern in association with the sensor.
2 . The sensor system according to claim 1 , wherein
the storage section stores, as the multiple chirp patterns, patterns in which modulation widths of frequencies and times of the chirp signals are common and modulation inclinations are different from each other.
3 . The sensor system according to claim 1 , wherein
the storage section stores a chirp list in which serial numbers are assigned to the multiple chirp patterns, and
the setting section acquires a serial number corresponding to the number plus the ranking in the chirp list to correspond to a head of the ranking, and sets the chirp pattern having a serial number according to the sequence.
4 . The sensor system according to claim 3 , wherein
the ranking is determined in an initial setting using an externally connected setting apparatus, and
the setting section acquires the ranking from the setting apparatus at time of the initial setting.
5 . The sensor system according to claim 1 , wherein
each of the multiple sensors includes the storage section and the setting section, and
the setting section selects and sets the chirp pattern for the sensor of the setting section.