The invention relates to an elevator arrangement comprising an elevator shaft wall; and a guide rail line extending vertically at a distance from the shaft wall, the guide rail line being fixed to said wall with plurality of fixing brackets; and an elevator car vertically movable along at least said guide rail line; and a hoisting machine mounted at a first vertical level between the shaft wall and the guide rail line; and a hoisting roping movable with said hoisting machine, and connected to the elevator car; wherein the guide rail line extends in vertical direction past the hoisting machine the upper end of the guide rail line being higher than said hoisting machine, and said plurality of fixing brackets comprises one or more first fixing brackets higher than said hoisting machine, by which one or more first fixing brackets the portion of the guide rail line which portion is higher than said hoisting machine is fixed to the shaft wall; and wherein the hoisting machine comprising a motor and a rotatable drive wheel. The elevator arrangement comprises an elongated hoisting passage extending vertically between the shaft wall and the guide rail line inside which hoisting passage the hoisting machine fits to be hoisted, each said first fixing bracket being shaped to circumvent the hoisting passage. The invention also relates to a method of constructing an elevator.

The invention relates to an elevator arrangement comprising an elevator shaft wall; and a guide rail line extending vertically at a distance from the shaft wall, the guide rail line being fixed to said wall with plurality of fixing brackets; and an elevator car vertically movable along at least said guide rail line; and a hoisting machine mounted at a first vertical level between the shaft wall and the guide rail line; and a hoisting roping movable with said hoisting machine, and connected to the elevator car; wherein the guide rail line extends in vertical direction past the hoisting machine the upper end of the guide rail line being higher than said hoisting machine, and said plurality of fixing brackets comprises one or more first fixing brackets higher than said hoisting machine, by which one or more first fixing brackets the portion of the guide rail line which portion is higher than said hoisting machine is fixed to the shaft wall; and wherein the hoisting machine comprising a motor and a rotatable drive wheel. The elevator arrangement comprises an elongated hoisting passage extending vertically between the shaft wall and the guide rail line inside which hoisting passage the hoisting machine fits to be hoisted, each said first fixing bracket being shaped to circumvent the hoisting passage. The invention also relates to a method of constructing an elevator.

A mine hoist monitoring system (102) for monitoring a mine hoist (100) comprising a hoist drum (120), the mine hoist monitoring system (102) comprising a hoist controller (150) configured for controlling the mine hoist (100); a plurality of strain gauges (144) mounted on the hoist drum (120); and at least one drum data node (140) mounted on the hoist drum (120), the plurality of strain gauges (144) being coupled to the at least one drum data node (140), wherein the at least one drum data node (140) is configured for determining strain signals indicative of strain in the hoist drum (120) using the plurality of strain gauges (144); wherein the at least one drum data node (140) is configured for transmitting the strain signals to the hoist controller (150); wherein the hoist controller (150) is configured for determining a strain distribution in the hoist drum (120) based on the strain signals received from the at least one drum data node (140), and wherein the hoist controller (150) is configured for visualizing the strain distribution.

A mine hoist monitoring system (102) for monitoring a mine hoist (100) comprising a hoist drum (120), the mine hoist monitoring system (102) comprising a hoist controller (150) configured for controlling the mine hoist (100); a plurality of strain gauges (144) mounted on the hoist drum (120); and at least one drum data node (140) mounted on the hoist drum (120), the plurality of strain gauges (144) being coupled to the at least one drum data node (140), wherein the at least one drum data node (140) is configured for determining strain signals indicative of strain in the hoist drum (120) using the plurality of strain gauges (144); wherein the at least one drum data node (140) is configured for transmitting the strain signals to the hoist controller (150); wherein the hoist controller (150) is configured for determining a strain distribution in the hoist drum (120) based on the strain signals received from the at least one drum data node (140), and wherein the hoist controller (150) is configured for visualizing the strain distribution.

An arrangement includes an installation platform arranged to be movable upwards and downwards in a first direction in the elevator shaft, and two laser transmitters arranged at a bottom of the elevator shaft. Each of the two laser transmitters produce a vertical upwards directed laser plane in the elevator shaft, the laser planes being perpendicular to each other. At least four primary light sensitive detectors are attached to the installation platform so that they are visible to the laser transmitters, each of the primary light sensitive detectors being positioned on a respective side of a rectangle. The position of the installation platform in relation to the elevator shaft can be measured from the hitting points of the laser planes on the primary light sensitive detectors.

An arrangement includes an installation platform arranged to be movable upwards and downwards in a first direction in the elevator shaft, and two laser transmitters arranged at a bottom of the elevator shaft. Each of the two laser transmitters produce a vertical upwards directed laser plane in the elevator shaft, the laser planes being perpendicular to each other. At least four primary light sensitive detectors are attached to the installation platform so that they are visible to the laser transmitters, each of the primary light sensitive detectors being positioned on a respective side of a rectangle. The position of the installation platform in relation to the elevator shaft can be measured from the hitting points of the laser planes on the primary light sensitive detectors.

An elevator system includes a hoistway with marking objects arranged at predetermined positions in the hoistway, an elevator car with a sensor providing an indication when the elevator car has reached the position a marking object, a complementary positioning system providing a complementary indication of the position of the elevator car in the hoistway, and a controller receiving the indication and the complementary indication. In order to minimize a need for manual inspections, the controller includes a memory maintaining for each marking object a setup position, and during elevator runs, the controller is configured to calculate an offset for a marking object for which the sensor provides an indication, by comparing the setup position for the marking object in question with the position indicated by the complementary positioning system at the indication of the marking object, and to trigger an alarm if the calculated offset fulfills a predetermined criterion.

An elevator system includes a hoistway with marking objects arranged at predetermined positions in the hoistway, an elevator car with a sensor providing an indication when the elevator car has reached the position a marking object, a complementary positioning system providing a complementary indication of the position of the elevator car in the hoistway, and a controller receiving the indication and the complementary indication. In order to minimize a need for manual inspections, the controller includes a memory maintaining for each marking object a setup position, and during elevator runs, the controller is configured to calculate an offset for a marking object for which the sensor provides an indication, by comparing the setup position for the marking object in question with the position indicated by the complementary positioning system at the indication of the marking object, and to trigger an alarm if the calculated offset fulfills a predetermined criterion.

An arrangement includes an installation platform arranged to be movable upwards and downwards in a first direction in the elevator shaft, and two laser transmitters arranged at a bottom of the elevator shaft. Each of the two laser transmitters produce a vertical upwards directed laser plane in the elevator shaft, the laser planes being perpendicular to each other. At least four primary light sensitive detectors are attached to the installation platform so that they are visible to the laser transmitters, each of the primary light sensitive detectors being positioned on a respective side of a rectangle. The position of the installation platform in relation to the elevator shaft can be measured from the hitting points of the laser planes on the primary light sensitive detectors.

An arrangement includes an installation platform arranged to be movable upwards and downwards in a first direction in the elevator shaft, and two laser transmitters arranged at a bottom of the elevator shaft. Each of the two laser transmitters produce a vertical upwards directed laser plane in the elevator shaft, the laser planes being perpendicular to each other. At least four primary light sensitive detectors are attached to the installation platform so that they are visible to the laser transmitters, each of the primary light sensitive detectors being positioned on a respective side of a rectangle. The position of the installation platform in relation to the elevator shaft can be measured from the hitting points of the laser planes on the primary light sensitive detectors.