Work machine management system and work machine

A work machine management system comprising:

• a position detecting device configured to detect a position of a work machine traveling in a workplace, based on positioning signals received from GPS satellites;
• a non-contact sensor configured to detect, in a non-contact manner, an object existing in the workplace;
• at least one processor;
• at least one memory including computer program code, wherein the computer program code, when executed by operation of the at least one processor, causes the work machine management system to:
• determine with a determination unit whether the position detecting device is capable of accurately determining a position;
• accumulate information for new map data on existence and a position of the object existing in the workplace on the basis of detection data obtained by the position detecting device and detection data obtained by the non-contact sensor, when the position detecting device is determined to be accurate;
• wherein new map data in each grid in an area of the map data is a grid color based on a number of times that the object has been detected in the grid by the work machine as it has traveled on a travel route in the workplace;
• and
• designate with a designation unit perfection of map data in accordance with a ratio between a colored grid and a non-colored grid in an area of the map data in a travel route,
• generate with a travel route generation unit a travel route so as to make the work machine preferentially pass the travel route on the basis of the perfection of information from the designation unit,
• wherein the map data allows a position of the work machine to be calculated by matching the map data with the detection data obtained by the non-contact sensor, and
• in a case where the perfection of the map data is low, a travel route is generated that passes is located in an outer periphery in vicinity of the workplace included in a detection area by the non-contact sensor.

A work machine management system, comprising:

• a position detecting device configured to detect a position of a work machine traveling in a workplace, based on positioning signals received from GPS satellites;
• a non-contact sensor configured to detect, in a non-contact manner, an object existing in the workplace;
• at least one processor;
• at least one memory including computer program code, wherein the computer program code, when executed by operation of the at least one processor, causes the work machine management system to:
• determine with a determination unit whether the position detecting device is capable of accurately determining a position;
• accumulate information for new map data on existence and a position of the object existing in the workplace on the basis of detection data obtained by the position detecting device and detection data obtained by the non-contact sensor, when the position detecting device is determined to be accurate;
• wherein new map data in each grid in an area of the map data is a grid color based on a number of times that the object has been detected in the grid by the work machine as it has traveled on a travel route in the workplace;
• identify with an identifying unit-perfection of map data in accordance with a ratio between a colored grid and a non-colored grid in an area of the map data;
• calculate with a scan matching navigation position calculation unit a position of the work machine by matching a detection result obtained by the non-contact sensor with the map data;
• control with a travel controller travel of the work machine on the basis of a detection result obtained by the position detecting device in a case where the position detecting device is effective, and configured to control travel of the work machine on the basis of a calculation result obtained by the scan matching navigation position calculation unit in a case where the position detecting device is not effective,
• generate with a travel route generation unit a travel route that causes the work machine to pass the travel route both in the case where the position detecting device is effective and in the case where the position detecting device is not effective,
• wherein the map data allows a position of the work machine to be calculated by matching the map data with the detection data obtained by the non-contact sensor, and
• in a case where the perfection of the map data is low, a travel route is generated that is located in an outer periphery in vicinity of the workplace included in a detection area by the non-contact sensor.