Workstation system and method for controlling a workstation system

Abstract

A workstation system comprises a table, at least one electric drive arranged to adjust a height of the table, at least one depth sensor arranged on the table, the depth sensor being arranged to measure, in at least one point, a distance between the at least one depth sensor and a user of the workstation system located in front of the table, and at least one inclination sensor, in particular forming a physical unit with the at least one depth sensor, the inclination sensor being arranged to detect an angle of inclination of the depth sensor. The workstation system further comprises at least one evaluation unit arranged to evaluate a setting height of the table when the distance measured by the depth sensor falls below or exceeds a predefined value and to calculate and signal a height of the user based on the setting height and the inclination angle of the at least one inclination sensor if the current table height is not suitable for the height of the user.

1 . A workstation system comprising
 a table,   at least one electric drive arranged to adjust a height of the table,   at least one depth sensor arranged on the table, the depth sensor being arranged to measure in at least one point a distance between the at least one depth sensor and a user of the workstation system located in front of the table,   at least one inclination sensor, in particular forming a physical unit with the at least one depth sensor, the inclination sensor being arranged to detect an inclination angle of the depth sensor and   at least one evaluation unit, arranged to evaluate a setting height of the table when the distance measured by the depth sensor falls below or exceeds a predefined value and to calculate and signal a height of the user based on the setting height and the inclination angle of the at least one inclination sensor if the current table height is not suitable for the height of the user.   
     
     
         2 . The workstation system according to  claim 1 , wherein the evaluation unit further is arranged to trigger the calculation of the height of the user depending on an adjustment of the height of the table. 
     
     
         3 . The workstation system according to  claim 1 , further comprising a presence sensor, arranged to detect a presence of the user at the workstation system. 
     
     
         4 . The workstation system according to  claim 1 , further comprising a work chair, wherein the work chair has at least one sensor adapted to detect a seated position of the user. 
     
     
         5 . The workstation system according to  claim 1 , further comprising a control unit, arranged to generate a control signal for height adjustment of the table. 
     
     
         6 . The workstation system according to  claim 5 , wherein the control unit is arranged to generate the control signal for height adjustment of the table based on a suitable table height calculated by the at least one evaluation unit. 
     
     
         7 . The workstation system according to  claim 1 , further comprising an input unit via which the user of the workstation system can make at least one of the following inputs:
 signalling a presence of the user,   indicating whether the user is sitting or standing,   starting the height detection of the user,   adjusting the table height to the suitable table height calculated by the workstation system.   
     
     
         8 . The workstation system according to  claim 1 , wherein the evaluation unit comprises a non-volatile memory on which a table for assigning a suitable table height to a calculated height of the user is stored. 
     
     
         9 . The workstation system according to  claim 1 , further comprising a display unit arranged to indicate to the user of the workstation system an unsuitable table height detected by the evaluation unit. 
     
     
         10 . The workstation system according to  claim 1 , further comprising a monitor, wherein the depth sensor and the inclination sensor are mounted on the monitor and the evaluation unit calculates the height of the user based on the setting height of the table, the inclination angle and a setting height of the monitor. 
     
     
         11 . The workstation system according to  claim 1 , wherein the table comprises a table top and the at least one depth sensor and the inclination sensor are arranged at one of the following locations:
 on top of a surface of the table top,   integrated in the surface of the table top,   on a bottom side of the table top, or   on a side of the table top.   
     
     
         12 . The workstation system according to  claim 1 , further comprising a sensor holder arranged on the table, wherein the at least one depth sensor and the inclination sensor are mounted on the sensor holder. 
     
     
         13 . The workstation system according to  claim 1 , further comprising at least one further depth sensor adapted to measure a mounting height of the physical unit. 
     
     
         14 . Method for controlling a workstation system comprising a table, at least one electric drive, at least one depth sensor arranged on the table, at least one inclination sensor forming a physical unit with the depth sensor, the method comprising:
 adjusting, by the at least one electric drive, a height of the table;   measuring, with the depth sensor, a distance in at least one point between the at least one depth sensor and a user of the workstation system located in front of the table while the height of the table is adjusted;   detecting, with the inclination sensor, an inclination angle of the depth sensor;   calculating a height of the user when the distance, measured by the depth sensor, falls below or exceeds a predefined value, wherein the calculation is based on a setting height of the table and the angle of inclination of the depth sensor;   signalling a currently unsuitable table height based on the calculated height of the user.   
     
     
         15 . The method for controlling a workstation system according to  claim 14 , wherein adjusting the height of the table and measuring the height of the user is automatically started when a presence of the user is first registered during a predetermined time period. 
     
     
         16 . The method for controlling a workstation system according to  claim 14 , wherein the adjustment of the height of the table and the measurement of the height of the user is automatically started when a change of a position of the user from a sitting to a standing position and/or from a standing to a sitting position is detected.