11
Appendix
Performance of this product (comparison with built-in type RZ511 vision sensor)
11-140
11. Appendix
11.1.
Performance of this product (comparison with built-in type RZ511
vision sensor)
Below is a comparison of the performance of this product with that of our built-in type vision sensors.
11.1.1.
Comparison of work recognition rate
(1) Comparative results by work shape and conditions
Table 11-1 Comparative Results by Work Shape and Conditions
Work condition
Network vision sensor
Built-in vision sensor
Overlap
○
×
Approach or contact
○
×
Tilt
○
△
Front/rear judgment
○
△
O: Recognition with pretty much no problems possible
△
: Recognition possible under some conditions
×
: Recognition almost impossible
With network vision sensors, it is possible to recognize overlapping work and work nearly in contact
or in contact, work that is difficult to recognize with the built-in vision sensors.
Network vision sensors also improve the recognition rate for tilted work and front/rear work.
(2) Comparison of functions for recognition pattern registration
Table 11-2 Comparison of Functions for Recognition Pattern Registration
Function
Network vision sensor
Built-in vision sensor
Area size change
Yes
Yes
Specification of coordinates
for output to robot
Yes Yes
Area angle change
Yes
(No need to change the work
angle)
No
(Necessary to change the work
angle)
Area shape change
Yes
(Square/fan shape/round)
No
(Square only)
Network vision sensors improve the work pattern registration functions.
It is possible to change the area angle without any need to change the work angle and the area
shape can be changed to square, fan shaped or circle.
11.1.2.
Comparison of image processing capacity
Table 11-3 Image Processing Capacity
Network vision sensor
Built-in vision sensor
4
10
30
4
10
30
Image processing time
276ms
278 ms
367 ms
794ms
946ms
946ms
Data transfer time
121 ms
142 ms
249 ms
80ms
99ms
127ms
Total time
397 ms
420 ms
616 ms
874ms
1045ms
1073ms
"Table 11-3 Image Processing Capacity" shows the measurement results when the work is recognized
with the same conditions.
The image processing time can be reduced by using network vision sensors.
For network vision sensors, the increase in the number of pieces of work recognized increases the data
transfer time.