1. A gap and height difference measurement module for a vehicle, which is configured to measure a gap andor a height difference between hemming edges of panels assembled on a vehicle body, the gap and height difference measurement module including:
a mounting frame with a flange mounted on a first end thereof and a connecting frame mounted on a second end of the mounting frame;
first and second housings mounted on both sides of the connecting frame respectively;
a first light source mounted on a lower end of the first housing and emitting light onto the panels;
a second light source mounted on a lower end of the second housing and emitting light onto the panels;
first and second sensors respectively mounted on front ends of the first and second housings; and
first and second filters that are respectively mounted to the first and second sensors so as to allow the first and second sensors to each extract straight-line elements from cross sections formed as the lights emitted from the first and second light sources are irradiated onto the panels.
2. The gap and height difference measurement module of claim 1, wherein the first sensor extracts straight-line elements, through the first filter, from cross sections formed by the light emitted from the second light source and irradiated onto the panels, and outputs the straight-line elements to a controller.
3. The gap and height difference measurement module of claim 1, wherein the second sensor extracts straight-line elements, through the second filter, from cross sections formed by the light emitted from the first light source and irradiated onto the panels, and outputs the straight-line elements to a controller.
4. The gap and height difference measurement module of claim 1, wherein the first and second sensors detect lights emitted from the first light source and the second light source, respectively, which are diagonally mounted through the first and second housings.
5. The gap and height difference measurement module of claim 1, wherein the first and second sensors includes camera sensors, and the first and second filters are mounted on measurement portions through mounting caps, respectively.
6. The gap and height difference measurement module of claim 1, wherein the first light source and the second light source emit light of different brightness, and the brightness is adjusted in response to a control signal from a controller.
7. A control method of a gap and height difference measurement module, the control method comprising:
(a) acquiring images of panels which require gap andor height difference measurement, and detecting a difference in brightness between the panels due to different colors or chrome molding;
(b) identifying images acquired by first and second sensors according to the difference in brightness between the panels detected in the process (a), extracting brightness values of the panels and outputting the brightness values to a controller, detecting a difference between the extracted values between a target value set by the controller by way of comparison and adjusting the brightness of first and second light sources, and selecting measurement regions of the panels and matching the measurement regions to each other;
(c) extracting straight-line elements from cross sections of the panels onto which the first and second light sources irradiate light, in the measurement regions of the panels that are matched in the process (b) and outputting straight-line elements to the controller, and offsetting linear axes created from the extracted straight-line elements; and
(d) extracting cross points at curved portions of cross sections of hemming edges of the panels, measuring the gap andor the height difference in horizontal andor vertical directions between the extracted cross points,
wherein the process (b) comprises:
when the difference in brightness between the panels is detected in the process (a), identifying the images acquired by the first and second sensor;
extracting the brightness values of the panels from the first and second sensors;
detecting the difference between the extracted brightness values, which are detected and extracted from the first and second sensors, and the target value;
when the difference between the extracted brightness values and the target value is detected, adjusting the brightness of the first and second light sources, and returning to a process of the extracting of the brightness values of the panels from the first and second sensors;
when no difference is detected between the extracted brightness values and the target value, selecting measurement regions of the panels; and
matching the measurement regions of the panels selected in the process (b) to each other.
8. The control method of claim 7, wherein the process (a) comprises:
acquiring hemming edge images of the panels required to be measured, through the first and second sensors; and
detecting the difference in brightness between the panels, caused by the different colors or the chrome molding, based on information acquired through the first and second sensors.
9. The control method of claim 7, wherein the first and second sensors includes camera sensors, and the first and second filters are mounted on the measurement portions through mounting caps, respectively.
10. The control method of claim 7, wherein the first light source and the second light source emit light of different brightness, and brightness of the first light source and the second light source is adjusted in response to a control signal from the controller.
11. A control method of a gap and height difference measurement module, the control method comprising:
(a) acquiring images of panels which require gap andor height difference measurement, and detecting a difference in brightness between the panels due to different colors or chrome molding;
(b) identifying images acquired by first and second sensors according to the difference in brightness between the panels detected in the process (a), extracting brightness values of the panels and outputting the brightness values to a controller, detecting a difference between the extracted values between a target value set by the controller by way of comparison and adjusting the brightness of first and second light sources, and selecting measurement regions of the panels and matching the measurement regions to each other;
(c) extracting straight-line elements from cross sections of the panels onto which the first and second light sources irradiate light, in the measurement regions of the panels that are matched in the process (b) and outputting straight-line elements to the controller, and offsetting linear axes created from the extracted straight-line elements; and
(d) extracting cross points at curved portions of cross sections of hemming edges of the panels, measuring the gap andor the height difference in horizontal andor vertical directions between the extracted cross points,
wherein the process (c) comprises:
when no difference in brightness is detected between the panels in the process (a), or after the process (b) is carried out, extracting the straight-line elements from the cross sections of the panels onto which the first and second light sources irradiate light, in the measurement regions of the panels that are matched in the process (b) and outputting the straight-line elements to the controller; and
vertically offsetting linear axes created from the extracted straight-line elements.
12. A control method of a gap and height difference measurement module, the control method comprising:
(a) acquiring images of panels which require gap andor height difference measurement, and detecting a difference in brightness between the panels due to different colors or chrome molding;
(b) identifying images acquired by first and second sensors according to the difference in brightness between the panels detected in the process (a), extracting brightness values of the panels and outputting the brightness values to a controller, detecting a difference between the extracted values between a target value set by the controller by way of comparison and adjusting the brightness of first and second light sources, and selecting measurement regions of the panels and matching the measurement regions to each other;
(c) extracting straight-line elements from cross sections of the panels onto which the first and second light sources irradiate light, in the measurement regions of the panels that are matched in the process (b) and outputting straight-line elements to the controller, and offsetting linear axes created from the extracted straight-line elements; and
(d) extracting cross points at curved portions of cross sections of hemming edges of the panels, measuring the gap andor the height difference in horizontal andor vertical directions between the extracted cross points,
wherein the process (d) comprises:
extracting the cross points between offset linear axes and the curved portions of the cross sections of the hemming edges of the panels; and
measuring a horizontal gap between two of the cross points extracted in the process (d) and a vertical height difference between the two of the cross points, and completing the measurement of the gap andor the height difference between the hemming edges of the panels.
13. A control method of a gap and height difference measurement module, the control method comprising:
(a) acquiring images of panels which require gap andor height difference measurement, and detecting a difference in brightness between the panels due to different colors or chrome molding;
(b) identifying images acquired by first and second sensors according to the difference in brightness between the panels detected in the process (a), extracting brightness values of the panels and outputting the brightness values to a controller, detecting a difference between the extracted values between a target value set by the controller by way of comparison and adjusting the brightness of first and second light sources, and selecting measurement regions of the panels and matching the measurement regions to each other;
(c) extracting straight-line elements from cross sections of the panels onto which the first and second light sources irradiate light, in the measurement regions of the panels that are matched in the process (b) and outputting straight-line elements to the controller, and offsetting linear axes created from the extracted straight-line elements; and
(d) extracting cross points at curved portions of cross sections of hemming edges of the panels, measuring the gap andor the height difference in horizontal andor vertical directions between the extracted cross points,
wherein the first sensor is mounted on one and the other ends of the first light source and a first housing, and the second sensor is mounted on one and the other ends of the second light source and a second housing, and
wherein the first and second sensors detect light emitted from the first light source and the second light source, respectively, which are diagonally mounted through the first and second housings.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A private communications network comprising:
a plurality of communications devices at private communications network stations, at least one of said plurality of communications devices being a digital telephone;
a group membership registry listing aliases registered for said plurality of communications devices and comprising at least one group of a plurality of said aliases, each of the aliases within a group of aliases being different than other aliases in that group, each alias of the aliases comprising a plurality of numerical digits, a selected wildcard in a dialed number being treated as a \u201cdon’t care\u201d for dialing such that all communications devices with aliases that comprise a string of numerical digits that match the dialed number preceding the wildcard are identified as group members within one of the at least one group of aliases, said wildcard being a non-numerical symbol key substituted for one or more digits of the dialed number used for initiating a call; and
at least one communications server monitoring said plurality of communications devices for inclusion of the wildcard in the dialed number used for initiating the call and responsive to encountering said wildcard by providing a group feature for the call, the group feature involving the communications devices having aliases within the one of the at least one group of aliases in the call.
2. The private communications network as in claim 1, wherein the wildcard is a star (*) symbol.
3. The private communications network as in claim 1, wherein the group feature is one of: a conference call, a hunting feature and a pickup feature.
4. The private communications network as in claim 1, wherein said group feature is invoked by one of entering *c for a conference call, entering *h for hunting and entering *p for pickup.
5. A method of managing private network calls, said method comprising the steps of:
a) monitoring dialing strings for in-network calls;
b) identifying any dialed strings including a wildcard substituted for a number in one or more string locations, said wildcard being a non-numerical symbol key;
c) identifying a group of communications devices associated with each identified dialed string according to numbers in remaining string locations in that identified dialed string for an in-network call, at least one of the communications devices being a digital telephone, the group comprising devices identified by aliases, the aliases comprising a plurality of numerical digits, each said wildcard being treated as a \u201cdon’t care\u201d for dialing such that all communications devices with aliases that comprise a string of numerical digits that match a dialed string preceding the wildcard are identified as group members of the group; and
d) selectively connecting an originating communications device to the communications devices in said group.
6. The method of managing private network calls as in claim 5, wherein a plurality of communications devices in the network each have a unique multi-digit identification (ID) number, ID numbers for group member communication devices having one or more digits in common, each communications device in an identified group being identified by unique digits in remaining ID number locations preceding the wildcard in the identified dialed string.
7. The method of managing private network calls as in claim 5, wherein said wildcard is a star (*) symbol of a star key of a communication device.
8. The method of managing private network calls as in claim 5, wherein said wildcard initiates invoking a group feature for the call, said call being connected according to the group feature.
9. The method of managing private network calls as in claim 8, wherein said group feature comprises one of a conference call, a hunting feature and a pickup feature.
10. The method of managing private network calls as in claim 8 wherein said wildcard is a star (*) inputted via a star (*) key on a telephone and said group feature is invoked by one of: entering *c for a conference call, entering *h for hunting, and entering *p for pickup.
11. The method of managing private network calls as in claim 8, wherein calls placed with dialing strings identified as not including wildcards are placed normally.
12. The method of managing private network calls as in claim 5, wherein before the step (a) of monitoring dialing strings, said method comprises:
a1) registering communications devices with said private network; and
a2) assigning the aliases to groups of said registered communication devices, the aliases for each group sharing one or more common digits.
13. A method of managing private network calls, said method comprising the steps of:
a) registering communications devices with said private network, at least one of the communications devices being a digital telephone;
b) assigning aliases to groups of registered said communications devices, aliases for each group sharing one or more common digits in individual communications device aliases and identified individually by one or more unique digits within a respective group;
c) monitoring dialing strings for in-network calls;
d) identifying any dialed strings including a wildcard substituted for numbers in one or more string locations, said wildcard being a non-numerical symbol key substituted for one or more digits of a dialed number used for initiating a call, the wildcard being treated as a \u201cdon’t care\u201d in said each identified dialed string;
e) identifying one of said groups as being associated with a portion of the numbers dialed in each identified dialed string such that all communications devices with aliases that comprise a string of numerical digits that match the dialed number preceding the wildcard are identified as group members within one of said groups of aliases; and
f) selectively connecting an originating communications device to the communications devices in said one of said groups.
14. The method of managing private network calls as in claim 13, wherein said wildcard initiates invoking of a group feature for a corresponding call, said call being selectively connected responsive to the invoked group feature.
15. The method of managing private network calls as in claim 14, wherein said wildcard is a star (*) in a respective dialing string.
16. The method of managing private network calls as in claim 15, wherein said group feature is one of a conference call, a hunting feature and a pickup feature.
17. The method of managing private network calls as in claim 16, wherein the group feature is invoked by one of entering *c for a conference call, entering *h for hunting and entering *p for pickup.
18. The method of managing private network calls as in claim 13, wherein calls placed with dialing strings identified as not including wildcards are placed normally.
19. The method of claim 13 wherein said wildcard is a star (*).