GB2460326A

GB2460326A - Wireless remote control of a floor conveyor

Info

Publication number: GB2460326A
Application number: GB0908565A
Authority: GB
Inventors: Nicki Marc Meyer; Christoph Webber
Original assignee: Jungheinrich AG
Current assignee: Jungheinrich AG
Priority date: 2008-05-26
Filing date: 2009-05-19
Publication date: 2009-12-02
Anticipated expiration: 2029-05-19
Also published as: DE102008025632B4; GB0908565D0; DE102008025632A1; GB2460326B

Abstract

The invention is a system for the remote control of a floor conveyor (e.g. fork lift) with a mobile input and sending device in the form of a programmable mobile telephone, smartphone or PDA, and with a receiving device provided on the floor conveyor, by which control signals sent from the input and sending device in a wireless manner are received directly and used for the control of vehicle functions. According to the invention, it is provided that at least signals for the remote control of the travel control of the floor conveyor can be sent in a wireless manner and can be received directly by the receiving device and processed for the control of the travel speed of the floor conveyor. Aspects of the invention include: controlling the steering and lifting of the fork lift truck, a docking station on the floor conveyor, the mobile input and sending device featuring a display executed as a touchscreen which controls the floor conveyor, a detection device for detecting the presence of an operator on and/or at the floor conveyor, a sensor/camera provided on the floor conveyor for wireless sending of signals to the sending device, and the sending device (mobile telephone) including a sensor for capturing data concerning the management of wares (i.e. positions of wares in the warehouse).

Description

INTELLECTUAL

. .... PROPERTY OFFICE Application No. GB0908565.5 RTM Date:12 August 2009 The following terms are registered trademarks and should be read as such wherever they occur in this document: Bluetooth, Windows Intellectual Property Office is an operating name of the Patent Office www.ipo.gov.uk System for the remote control of a floor conveyor The present invention is related to a system for the remote control of a floor conveyor. By now, wireless remote controls are used in many working machines. In this, normally own controls are provided for the remote control, which are equipped with a radio module.

From DE 10 2005 011 436 Al, a system for remotely operating devices and components in a vehicle is known, in a utility vehicle in particular. A usage in floor conveyors is not taken into consideration. In the known system, it is provided that a receiving device is installed in the vehicle and provided with converters for controlling various devices and components of the vehicle. Further, a mobile command input device is provided, which may be a programmable mobile telephone, PDA or the like. The receiving device features a sender and the command input device a receiver. Own adjusting elements and converters, respectively, are necessary in the utility vehicle for adjusting the desired radio transmitted controls. Possible devices and components adapted for remote control can be a retractable roof, an independent vehicle heater, an independent air condition, window lifters, the door locking, the air cushion, the navigation device or even the cooling apparatus of a refrigerated truck. By remotely controlling these devices and components, the convenience and the application possibilities of the vehicle are enhanced. However, important functions of the vehicle cannot be controlled remotely.

Starting from the explained state of the art, the present invention is based on the objective to enhance the application possibilities of a floor conveyor in a cost saving way.

The present invention resolves this objective by the features of the claim 1. Advantageous embodiments are found in the dependent claims as well as in the description and the drawing.

For a system for the remote control of a floor conveyor with a mobile input and sending device in the form of a programmable mobile telephone, smartphone or PDA and with a receiving device provided on the floor conveyor, by which control signals sent from the input and sending device in a wireless manner can be received directly and can be used for the control of vehicle functions, the present invention resolves the objective in that at least signals for the remote control of the travel control of the floor conveyor are sent in a wireless manner and can be received directly by the receiving device and processed for the control of the travel speed of the floor conveyor.

Preferably, signals for the remote control of the steering control and/or the lifting control of the floor conveyor can be sent by the mobile input and sending device in a wireless manner in addition, and can be received directly by the receiving device and can be processed for the control of the steering and of lifting functions of the floor conveyor.

According to the present invention, a conventional, commercially available programmable mobile device is used for the remote control, in particular a mobile telephone, smartphone, PDA (Personal Digital Assistant) or the like. The input of the control signals into the mobile input and sending device can take place by an operator via the input possibilities of the mobile device (keys, control cross, joystick and so on). There is a wireless communication via radio between the mobile device and the receiving device, which is stationarily arranged on the vehicle. No intermediation via a telephone provider or a similar thing is necessary in this. In a particularly advantageous way, standardised protocols usable without intermediator and license, like Bluetooth for instance, can be used for the data transmission. The hardware necessary for sending the data, like wireless interfaces for Bluetooth e.g., is already provided in actual commercially available mobile devices, so that, in a cost saving way, only the software for the remote control must still be programmed.

Thus, the present invention provides a system for the remote control of the travel functions and optionally of the steering and/or lifting functions or further working functions, respectively, as well as of the devices installed on the vehicle, in which it is gone back to actually widespread devices with respect to the remote control hardware. In addition to the substantial functions of the mobile device in the field of communication, scheduling, organisation of business processes and so on, an additional function can be integrated into a device that is already existing or necessary anyway. Without significant manipulation of the devices, every suitable mobile device can be used as a remote control with adapted software versions (matched to current processor and/or operating systems platforms, like Windows CE for instance). The penetration of the markets by programmable mobile devices, like smartphones, pocket-pc's and so on is very high in the industrialised countries already today, and it will increase further in the next years due to the cost reduction that is to be expected. For this reason, significant cost savings can be achieved by using the already existing infrastructure (mobile devices used for business or privately, which have been purchased anyway for the sake of the accessibility of the staff). Only the receiving device on the vehicle side (the remote wireless station) has to be taken into account as an additional cost factor. However, these costs are relatively small due to modules, which are already available today.

As the travel control of floor conveyors in particular can take place by remote control according to the present invention, the invention invites itself at difficultly accessible or dangerous places and enlarges the application field of floor conveyors. A further application are so-called commissioning vehicles, in which an operator must leave the driver stand of the floor conveyor in order to commission wares. In that the travel control is adapted to be remote controlled, it is not necessarily required that the operator returns into the driver stand for the control of the vehicle. The floor conveyor may be a stacker (a fork stacker for instance) or a commissioning vehicle and so on. For further enlargement of the application possibilities, according to the present invention, for instance even the steering and lifting functions of a floor conveyor or accessory equipments of the vehicle can be remote controlled by the mobile device.

In the present context, the control of the travel speed comprises always the control of forward or backward travel (positive/negative speed) too. A processing of the control signals can also mean in this context that the control signals are only forwarded by the receiving device, to a control bus (CAN-bus) for instance. By doing so, no manipulation of the data by the receiving device is necessary. However, the receiving device can transform the received data, for instance into a format which is usable for control.

According to one embodiment, the mobile input and sending device can feature a display executed as a touchscreen, on which controls for controlling the floor conveyor can be represented graphically and can be operated by touch. In this embodiment, the input of the control signals by the user takes place in a particularly simple way via the touchscreen. The controls provided on the floor conveyor can then be represented graphically on the display.

In this embodiment, the controls on the display of the mobile device are based on the controls on the vehicle with respect to function and handling as accurately as possible, exactly for instance. By doing so, a change of the operation of the vehicle from out the driver stand to a remote controlled vehicle control does not necessitate an adaptation for the operator. Inasmuch as the controls on the vehicle and on the remote control are executed to be exactly the same, it is for instance conceivable to use a touchscreen also on the vehicle side, like on the mobile device. Of course, the controls on the vehicle and on the remote control can also be executed in close similarity, or differ from each other.

Inasmuch as a touchscreen is provided on the mobile device, it is further possible that a positioning element can be graphically represented on the display, which can be deflected by touching the display, starting from a zero position within a X-/Y-coordinate system with at least two quadrants, wherein a control device determines desired value signals for the travel speed and the steering angle of at least one steerable wheel of the floor conveyor from the position of the positioning element, wherein the control device determines a desired steering angle from the deflection of the positioning element, and a desired travel speed from the degree of a deflection. Inasmuch as the receiving device does not have a touchscreen, it is also conceivable that the corresponding positioning element is provided on the mobile input and sending device. In this, it may be dealt with a small joystick for instance, as the same is featured by many mobile devices. The control device may be a stationary control device of the vehicle or be implemented on the mobile input and sending device as software. The basic idea of the embodiment is that a direction value (steering angle) and an amount value (the speed) is determined as a presetting from the two X-and Y-signals. Thus, it is possible for the operator to handle the two operation functions travelling and steering conjointly in a simple and intuitive manner. This basic idea is also the subject matter of a parallel application by the present applicant (reference number 10 2007 060 336.5). According to a further embodiment, the positioning element can be movable along the Z-axis or rotatable around the Z-axis, in order to control further functions of the floor conveyor According to a further embodiment, a docking station can be provided on the floor conveyor, into which the mobile input and sending device for a control of the floor conveyor can be inserted from out the driver stand of the floor conveyor. Thus, in this embodiment the not remotely controlled operation of the vehicle by an operator directly on the vehicle and the remote control are possible via the same device, which can be detached from the vehicle when the operator leaves the same and which can be taken along by the operator. This results in a particularly simple handling. Furthermore, a direct assignment is possible which operator controls which device. As a result, an unauthorised use of the vehicle without the matching mobile input device can be excluded.

According to a further embodiment, at least the travel control, preferably in addition also the steering and/or lifting control of the floor conveyor, can take place electrically. At least the travel control, preferably in addition also the steering and/or lifting control, can then be driven via a bus system. In modem floor conveyors, there are often electric travel and steering controls and also electric controls of other functions, lifting functions for instance.

With these, control signals transmitted from the mobile device via the radio line can be brought to the vehicle bus (CAN-bus for instance) at the vehicle side via the receiving device, if necessary after a suitable transformation. The bus system permits a rapid communication between plural participants, wherein the individual controls of the vehicle are triggered via the bus system. For instance, lifting functions of the vehicle can be comprised in this also.

Then, it is further possible to direct the control signals, sent by the mobile input and sending device, from the receiving device directly to at least the travel control via the bus system, preferably in addition also to the steering and/or lifting control of the floor conveyor. In this, the receiving device represents an additional bus participant or bus node, respectively, which gives up the control signals sent by the mobile device to the bus system, if need be with a mark for signalising a remote control operation, from where they arrive at the corresponding control via the master. Thus, all kinds of converters or setting elements for the mechanical triggering of vehicle controls can be omitted. This embodiment, which is in particular usable in floor conveyors with its electric control systems, provides for a high cost saving. To the contrary, in conventional utility vehicles, for instance in trucks, a mechanical control of the travel-and steering functions via fuel pedal and steering wheel is provided. In order to remotely control the same, additional setting elements and converters would be necessary in the vehicle, which actuate the fuel pedal and the steering wheel, respectively.

According to a further embodiment, the mobile input and sending device can have an encryption device for the encryption of the control signals to be sent, and the receiving device a decryption device for decrypting the control signals. Furthermore, it is possible that the receiving device features an identification device, by which the mobile input and sending device which sends control signals can be unambiguously identified. In this, it is possible that the mobile input and sending device sends a corresponding identification code for identification. Special measures regarding the safety have to be taken in the remote control of the travel and steering functions in particular. In this, it must be avoided amongst others that the vehicle operator looses control of the vehicle in an interruption of the radio link (due to the range of coverage or disturbances). For this purpose, a redundant data transmission or a method with a CRC sum is conceivable, in order to increase the safety of the data transmission. Furthermore, it must be excluded that the control of the vehicle can be achieved without authorisation via a sender that is not associated to the system. Even when using plural remotely controlled vehicles or when using a vehicle having plural mobile devices configured as remote controls with corresponding software, an assignment free of doubt between vehicles and mobile devices is necessary. This is made sure by the identification device. Also, it must be made sure that the floor conveyor cannot be controlled at the same time by plural mobile devices or by one or plural mobile devices and the driver stand control. For this purpose, a locking between an operation device used for control, let it be a mobile device or an operation device at the driver stand of the vehicle, and the vehicle control must take place, which makes sure that after taking over the control of the operation of the vehicle by means of an operation device, the vehicle cannot be controlled by another operation device. Such a locking securely prevents a double actuation of the vehicle control. The locking can be ended again for instance by logging out the respective active operation device, or when a bus system is used, by a priorisation and suitable analysis of the control signal messages, if need be. In doing so, it is made sure that only the respective mobile device authorised for the receiving device can remotely control the vehicle. By an encrypted data transmission, it is also made sure that the control data cannot be manipulated, or that other transmitted data which must possibly be kept secret cannot be intercepted by third parties. For the implementation, methods for the encryption and/or identification already provided in the radio protocols (like "Pairing" of the Bluetooth protocol, e.g.) can be used, as well as other methods based on the protocol.

Depending on the utilisation profile of the floor conveyor, for maintaining the working safety it must be made safe that remotely controlled driving and other vehicle ftinctions do not occur as long as there are persons on or at the vehicle, respectively. For this purpose, a detection device for detecting the presence of an operator on or at the floor conveyor can be provided on the floor conveyor, wherein control signals sent by a mobile input and sending device during the presence of an operator are not processed for controlling the floor conveyor. The detection device may have a pressure detector arranged in a vehicle seat and/or on the driver stand of the vehicle. An operator may stand on the driver stand during the operation of the vehicle. Thus, a pressure mat may be provided on the driver stand, for instance. Also, for instance it is also possible to provide a pressure switch in a vehicle seat. Of course, even other detectors are conceivable, for instance optical detectors based on laser systems.

According to a further embodiment, the receiving device can feature a sending device for wireless sending of signals, wherein the mobile input and sending device features a receiving device for receiving these signals. In this embodiment, a bidirectional data transmission between the mobile device and the vehicle is possible. Further, a camera can be provided on the floor conveyor, wherein the images recorded by the camera are sent to the mobile input and sending device by the receiving device, and can be shown on a display of the mobile input and sending device. In this embodiment, which invites itself at places which are badly accessible or endanger the operator, a remote control of the vehicle can take place by means of the camera image.

It is also possible that data concerning the management of a warehouse for wares, in particular of wares charged and/or discharged by the floor conveyor and/or positions of wares in the warehouse, are sent to the mobile input and sending device by the receiving device, and can be shown on a display of the mobile input and sending device. Thus, in the frame of the bidirectional data transmission, additional data can be transmitted between the mobile device and the vehicle. In this way, the present invention is also adapted for the management of the works performed by the vehicle in the frame of a warehouse management system (WMS). Even from such a warehouse management system for a storeroom for wares that is separate from the floor conveyor, data concerning the management of the warehouse, in particular of wares charged and/or discharged by the floor conveyor and/or positions of wares in the warehouse, can be sent to the mobile input and sending device and can be shown on a display of the mobile input and sending device.

For this purpose, the mobile input and sending device features a suitable receiver. In this frame, information concerning the warehouse management, in particular concerning warehouse data (kind, amount and position of wares) as well as working operations of the vehicle, for instance commissioning operations, stacking operations or the like, can be sent from the warehouse administration system or from the receiving device of the vehicle to the mobile device, and can be displayed, registrated and/or sent for further processing to other receivers, the warehouse administration system for instance, let it be in a wireless fashion or via a suitable docking station for instance. The data concerning this acquired by the vehicle or the data from the warehouse administration system can in turn be sent to the mobile device in a wireless fashion, or for instance be transmitted via a docking station.

The registration of the data can take place manually through an input by an operator. Yet it is also possible that the floor conveyor features at least one sensor for the capture of data concerning the administration of the warehouse, in particular of wares charged and/or discharged by the floor conveyor and/or positions of wares in the warehouse, wherein the data received by the sensor can be transmitted to the receiving device. In turn, they can be transmitted to the mobile device by the receiving device. It is also possible that alternatively or in addition, the mobile input and sending device features at least one sensor for the capture of data concerning the administration of the warehouse, in particular of wares charged and/or discharged by the floor conveyor and/or positions of wares in the warehouse. Thus, the sensors may capture charge and warehouse positions, for instance.

By way of example, suitable sensors are barcode readers or RFID reading devices, by which barcodes or identification data sent by RFID transponders can be read out, or similar sensors. Partly already today, such sensors belong to the standard equipment range of mobile devices.

An example of the realisation of the present invention is explained in more detail by means of a drawing in the following.

The single figure shows in a schematic manner a system for the remote control of a floor conveyor according to the present invention. The system has a mobile input and sending device 10, in the present case a programmable PDA (Personal Digital Assistant). In this, it is dealt with a commercially available PDA, which has only been programmed with suitable software for the execution of the remote control functions in the frame of the system of the present invention. The mobile device 10 has a display 12 realised as a touchscreen, on which controls 14 for the control of a floor conveyor 16, a fork stacker 16 in the present case, can be graphically shown and operated via touch. The controls 14 shown on the display 12 are accurately replicated from the controls provided on the floor conveyor 16 with respect to function and handling. In particular, even the floor conveyor 16 has an input device 18 with a display realised as a touchscreen, on which the controls 14 shown on the mobile device 10 are provided. By way of example, the input device 18 of the floor conveyor 16 can be detachable from the vehicle 16 via a docking station. It is also possible that mobile devices 10 used for the remote control can be inserted into a docking station of the vehicle 16 in order to control the vehicle 16 from out the driver stand. In this case, no own control is needed on the vehicle 16, except the respective mobile device 10.

Furthermore, the fork stacker 16 has a stationary receiving device 20. The receiving device is in communication with the mobile input and sending device 10 via a wireless radio line not shown in more detail. For this purpose, the mobile device 10 and the receiving device 20 are provided with an integrated radio interface (a Bluethooth for instance). For controlling different functions of the floor conveyor 16, the latter has a control bus (CAN bus) 22. The travel-steering-and lifting control of the floor conveyor 16 takes place electrically in the shown example. In the operation of the vehicle 16 from out the driver stand, the vehicle bus 22 is charged with control signals, corresponding to the input by an operator into the input device 18. The same are forwarded to the individual controls of the -10 -vehicle 16 via the bus 22. To the same belong a travel control 24 for controlling the travel speed (forward and backward), a steering control for controlling the steering of the vehicle, and a lifting control 28 for controlling the lifting functions of a fork 30 of the vehicle 16.

The input device 18 and the receiving device 20 may also be realised as an integrated unit.

The receiving device 20 has furthermore a sending device for wireless sending of signals, and the mobile device 10 a corresponding receiving device for receiving these signals. A camera 32 is provided on the floor conveyor 16 in addition, which records images of the surroundings of the floor conveyor 16 and leads them to the receiving device 20.

In the shown example, the travel-steering-and lifting functions of the floor conveyor 16 can be controlled via the controls 14 of the mobile device 10 in order to remotely control the floor conveyor 16. Furthermore, besides to lifting and lowering the fork 30, even other functions of the floor conveyor 16 can be remotely controlled, for instance light, horn and so on. The circular control 14 is a positioning element, which is adapted to be deflected starting from a zero position within a X-Y coordinate system, with 4 quadrants in the present case, upon touch of an operator, wherein the control device, realised as software in the mobile device in the present case, determines desired value signals for the travel speed and the steering angle of the steerable wheels of the floor conveyor 16 from the position of the positioning element, and a desired steering angle from the deflection direction of the positioning element 14, and a desired travel speed from the degree of a deflection. In this way, an intuitive control of the travel-as well as of the steering control is possible by way of the circular control 14. Via the quadratic control 14 on the display 12, furthermore executed as so-called soft keys, the lifting functions of the vehicle 16 can be controlled remotely. In the shown example, the control signals sent by the mobile device 10 are guided to the individual controls 24, 26, 28 of the floor conveyor 16 from the receiving device 20 directly via the bus system 22. Thus, the signals sent by the mobile device 10 are used directly as control signals. Corresponding converters or actuators are not necessary, which saves cost. However, of course it is also possible to realise the interface between the radio link and the vehicle bus 22 as a "transceiver"-module (for instance as a Bluetooth on a CAN bus).

Furthermore, the camera images recorded by the camera 32 and sent to the mobile device -11 -by the receiving device 20 can be shown on the display 12 of the mobile input and sending device 10. In this way, a remote control of the vehicle 16 is possible even at badly accessible locations in a particularly simple way.

Claims

-12 -Claims: A system for the remote control of a floor conveyor with a mobile input and sending device in the form of a programmable mobile telephone, smartphone or PDA, and with a receiving device provided on the floor conveyor, by which control signals sent from the input and sending device in a wireless manner can be received directly and used for the control of vehicle functions, characterised in that at least signals for the remote control of the travel control (24) of the floor conveyor (16) can be sent in a wireless manner and can be received directly by the receiving device (20) and processed for the control of the travel speed of the floor conveyor (16).
2. A system according to claim 1, characterised in that in addition, signals for the remote control of the steering control (24) and/or the lifting control (28) of the floor conveyor (16) can be sent by the mobile input and sending device (10) in a wireless manner, and can be received directly by the receiving device (20) and can be processed for the control of the steering and of lifting functions of the floor conveyor (16).
3. A system according to claim 1 or 2, characterised in that the mobile input and sending device (10) features a display (12) executed as a touchscreen, on which controls (14) for controlling the floor conveyor (16) can be represented graphically and can be operated by touch.
4. A system according to claim 3, characterised in that the controls provided on the floor conveyor (16) can be represented graphically on the display (12).
5. A system according to any one of claims 3 or 4, characterised in that a positioning element (14) can be graphically represented on the display (12), which can be deflected by touching the display (12) starting from a zero position within a X-/Y-coordinate system with at least two quadrants, wherein a control device determines -13 -desired value signals for the travel speed and the steering angle of at least one steerable wheel of the floor conveyor (16) from the position of the positioning element (14), wherein the control device determines a desired steering angle from the deflection of the positioning element (14), and a desired travel speed from the degree of a deflection.
6. A system according to any one of claims 1 to 4, characterised in that the mobile input and sending device (10) has a positioning element which can be deflected starting from a zero position within a X-/Y-coordinate system with at least two quadrants, wherein a control device determines desired value signals for the travel speed and the steering angle of at least one steerable wheel of the floor conveyor (16) from the position of the positioning element (10), wherein the control device determines a desired steering angle from the deflection of the positioning element (14), and a desired travel speed from the degree of a deflection.
7. A system according to claim 6, characterised in that the positioning element is movable along the Z-axis or rotatable around the Z-axis in order to control further functions of the floor conveyor (16).
8. A system according to any one of the preceding claims, characterised in that a docking station is provided on the floor conveyor (16), into which the mobile input and sending device (10) for a control of the floor conveyor (16) can be inserted from out the driver stand of the floor conveyor (16).
9. A system according to any one of the preceding claims, characterised in that at least the travel control (24), preferably in addition also the steering and/or lifting control (26, 28) of the floor conveyor (16) is performed electrically.
10. A system according to claim 9, characterised in that at least the travel control (24), preferably in addition also the steering and/or lifting control (26, 28) of the floor conveyor (16) is adapted to be triggered via a bus system (22).

-14 -
11. A system according to claim 10, characterised in that via the bus system (22), the control signals sent by the mobile input and sending device (10) can be directed from the receiving device (20) directly to at least the travel control (24), preferably in addition also to the steering and/or lifting control (26, 28) of the floor conveyor (16).
12. A system according to any one of the preceding claims, characterised in that the mobile input and sending device (10) features an encryption device for the encryption of the control signals to be sent, and that the receiving device (20) features a decryption device for decrypting the control signals.
13. A system according to any one of the preceding claims, characterised in that the receiving device (20) features an identification device, by which the mobile input and sending device sending control signals (10) can be unambiguously identified.
14. A system according to any one of the preceding claims, characterised in that a detection device for detecting the presence of an operator on and/or at the floor conveyor (16) is provided on the floor conveyor (16), and that during the presence of an operator, control signals sent by a mobile input and sending device (10) are not processed for controlling the floor conveyor (16).
15. A system according to claim 14, characterised in that the detection device features a pressure detector arranged in a vehicle seat and/or on the driver stand.
16. A system according to any one of the preceding claims, characterised in that the receiving device (20) features a sending device for wireless sending of signals, and that the mobile input and sending device (10) features a receiving device for receiving these signals.
17. A system according to claim 16, characterised in that a camera (32) is provided on the floor conveyor (16), wherein the images recorded by the camera (32) are sent to the mobile input and sending device (10) by the receiving device (20) and can be shown on a display (12) of the mobile input and sending device (10).

-15 -
18. A system according to claim 16 or 17, characterised in that data concerning the management of a warehouse for wares, in particular of wares charged and/or discharged by the floor conveyor (16) and/or positions of wares in the warehouse, are sent to the mobile input and sending device (10) by the receiving device (20), and can be shown on a display (12) of the mobile input and sending device (10).
19. A system according to any one of the preceding claims, characterised in that by a warehouse management system for a warehouse for wares that is separate from the floor conveyor (16), data concerning the management of the warehouse, in particular of wares charged and/or discharged by the floor conveyor (16) and/or positions of wares in the warehouse, are sent to the mobile input and sending device (10) by the receiving device (20), and can be shown on a display (12) of the mobile input and sending device (10).
20. A system according to any one of the preceding claims, characterised in that the floor conveyor (16) features at least one sensor for capturing data concerning the management of the warehouse, in particular of wares charged and/or discharged by the floor conveyor (16) and/or positions of wares in the warehouse, and that the data received by the sensor can be transmitted to the receiving device (10).
21. A system according to any one of the preceding claims, characterised in that the mobile input and sending device (10) features at least one sensor for the capture of data concerning the management of the warehouse, in particular of wares charged and/or discharged by the floor conveyor (16) and/or positions of wares in the warehouse.