Abstract: A travel route automatic selection system for a work machine includes a travel route search unit that searches a travel route satisfying a condition that the work machine can enter from a current position for preparing entry only by forward movement along an entry route formed so that the work machine enters at an entry position in a same direction as a traveling direction when the work machine travels the travel route, at an entry position positioned between a travel route start position and a work start position, from a predetermined travel route corresponding to each of the one or a plurality of work target zones, by determining whether the condition is satisfied based on at least the travel route part of the predetermined distance from the travel route start position at least between the travel route start position and the work start position of the predetermined travel route.

Abstract: An entry availability determination system including a detector that detects a current position of a work machine that performs predetermined work while traveling a work target zone along a predetermined travel route; and a determination information generation unit that generates determination information indicating whether entry is possible by determining whether the work machine can enter from a current position for preparing entry of the work machine only by forward movement along an entry route formed so that the work machine enters at an entry position in a same direction as a traveling direction when the work machine travels the travel route, at the entry position positioned on an opposite side of the traveling direction of the work machine with respect to a work complete position or a work incomplete position on the travel route, when the work machine gets out of the travel route.

Abstract: A travel route generation system of generating a travel route of a work machine that performs predetermined work while traveling a route formed by linking ends of at least a plurality of substantially parallel routes through inversion routes in a work target zone, the ends being positioned at or near intersections of the routes and the periphery of the work target zone, the system including a zone setting unit that sets a periphery of the work target zone and a periphery of an entry prohibited zone outside of the work target zone; and a route generation unit that selects, for each of the inversion routes, an inside inversion route, not an outside inversion route, according to a positional relationship between the periphery of the work target zone and the periphery of the entry prohibited zone, wherein the inside inversion route is selected as the travel route.

Abstract: A travel route automatic selection system for a work machine includes a travel route search unit that searches a travel route satisfying a condition that the work machine can enter from a current position for preparing entry only by forward movement along an entry route formed so that the work machine enters at an entry position in a same direction as a traveling direction when the work machine travels the travel route, at an entry position positioned between a travel route start position and a work start position, from a predetermined travel route corresponding to each of the one or a plurality of work target zones, by determining whether the condition is satisfied based on at least the travel route part of the predetermined distance from the travel route start position at least between the travel route start position and the work start position of the predetermined travel route.

Abstract: A travel route generation system of generating a travel route of a work machine that performs predetermined work while traveling a route formed by linking ends of at least a plurality of substantially parallel routes through inversion routes in a work target zone, the ends being positioned at or near intersections of the routes and the periphery of the work target zone, the system including a zone setting unit that sets a periphery of the work target zone and a periphery of an entry prohibited zone outside of the work target zone; and a route generation unit that selects, for each of the inversion routes, an inside inversion route, not an outside inversion route, according to a positional relationship between the periphery of the work target zone and the periphery of the entry prohibited zone, wherein the inside inversion route is selected as the travel route.

Abstract: An entry availability determination system including a detector that detects a current position of a work machine that performs predetermined work while traveling a work target zone along a predetermined travel route; and a determination information generation unit that generates determination information indicating whether entry is possible by determining whether the work machine can enter from a current position for preparing entry of the work machine only by forward movement along an entry route formed so that the work machine enters at an entry position in a same direction as a traveling direction when the work machine travels the travel route, at the entry position positioned on an opposite side of the traveling direction of the work machine with respect to a work complete position or a work incomplete position on the travel route, when the work machine gets out of the travel route.

Abstract: A method of testing if the wiring or state of a TFT and LCD is abnormal includes the following steps: In a first operation, a TFT is turned on for a given time period to charge the cell capacitor connected to an LCD through the data line thereof. Next, the TFT is turned off, maintaining the charged condition. Then, the TFT is turned on again for a given time period T to release the stored electric charge through the source, drain and a grounded resistor. Changes with time in the output of source current (i.sub.1) or voltage (V.sub.1) induced by the discharge are input into a computer. In a second operation, the TFT is turned on for a given time period without charging the cell capacitor through the data line. After turning off the TFT for the same time as the first operation, the TFT is turned on again for a given time period to release the stored charge through the source, drain and grounded resistor. Then, changes with time in the output of source current i.sub.2 or source voltage V.sub.

Abstract: A method and apparatus for testing TFT-LCD's turns on a TFT in an active color LCD using TFT's, charges a cell capacitor connected to the LCD through the data line, keeps the capacitor charged after turning off the TFT, discharges the capacitor through a resistor connected to the grounding side through the source and drain of the TFT, and checks the function of the TFT-LCD and the connection of the elements contained therein based on the waveform of a current or discharge induced by the discharge.