SICK TiM361S

NOTE
•
In a mobile application, a resolution of 70mm (leg detection) is sufficient for
detecting people. In contrast to stationary hazardous point protection, this is also
true for a low mounting height, as the device moves together with the vehicle.
•
In typical protective field calculations, only the vehicle speed is taken into account,
not the speed of a walking person. This is based on the assumption that the
person recognizes the danger and stands still
Protective field length
The protective field must be designed so that it detects a person at a minimum
distance from the hazardous point. This distance is required to ensure that the vehicle
comes to a stop before it reaches a person or an object.
In mobile hazardous area protection, the minimum distance typically defines the pro‐
tective field length required. When calculating the protective field length, the impact of
turning must be considered separately.
If you define a number of analysis cases with different protective fields, you must
calculate the protective field size separately for each protective field used.
Protective field width
The protective field must be wide enough to cover the width of the loaded vehicle with
supplements for measurement error and the lack of ground clearance. When calculat‐
ing the protective field width, the impact of turning must be considered separately.
The minimum protective field width is determined based on a max. speed of moving
objects as well as the sensor platform (for mobile applications). The minimum protec‐
tive field width is 0.3m taking into consideration the specified response times and
scanning frequency (see "Technical data", page 57). For the maximum safety detec‐
tion distance of 4m, this minimum protective field width corresponds to an angular
resolution of 4.5°, which is well above the minimum angular resolution of 0.33°.
Calculating minimum distance
The minimum distance depends, among other things, on the following:
•
Response time of the protective device
•
Position of the device on the vehicle
•
Approach speed of personnel
•
Resolution of the device
•
Speed of the vehicle
PROJECT PLANNING
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8022483/1LM2/2024-03-27 | SICK O P E R A T I N G I N S T R U C T I O N S | TiM361S
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Subject to change without notice