Method for authenticating a wireless remote-operating device as a temporary part of a control device

Abstract

The invention relates to a method for authenticating a wireless teleoperation device (82) as a temporary part of a control device (60) of a rock change apparatus (12). The method comprises the following steps: causing the device-data processing device (64) to generate first authentication information (A1) with a lower security level; outputting the first authentication information (A1) to a device-data output device (66) in a human-perceptible manner; inputting the first authentication information (A1) into the remote data input device (92) by the operator; establishing wireless communication with the device-based part (62) of the control device (60) by the remote control device (82) on the basis of the first authentication information (A1); after establishing the wireless communication: generating second authentication information (A2) with a higher security level by means of the device-data processing means (64); the second authentication information (A2) is wirelessly transmitted to the remote control device (82).

Description

Technical Field

[0001] The invention relates to a method for authenticating a wireless remote control device as a temporary part of a control device of a rock modification device. A rock modification device in the sense of the present application is a device that changes at least one state parameter of a rock. In a simple preferred case, this can be a rock transport device that transports a rock from a first position to a second position and thereby changes the position coordinates of the rock. This can also be a rock processing device that sorts the rock, for example by screening, or / and structurally modifies the rock, for example by crushing.

[0002] The remote control device in the sense of the present application is preferably designed for inputting control commands. The remote control device in the sense of the present application can alternatively or preferably be designed for outputting, in particular optically outputting, operating data. Therefore, the remote control device in the sense of the present application can also be designed only for outputting operating data. Background Art

[0003] The method for authenticating a wireless remote control device as a temporary part of a control device for a rock modification device is known from the applicant's control system "SPECTIVE". The applicant's control system "SPECTIVE" offers the following possibilities as an extended solution under the name "SPECTIVE CONNECT": Authentication of a wireless remote control device, for example a smartphone, as a temporary part of a control device for a rock modification device via a corresponding application (App) and use of the wireless remote control device after authentication.

[0004] In the known SPECTIVE system, the device-based part of the control device of the rock modification device outputs a QR code on a display, which is read using the camera of a smartphone or other portable mobile device. The QR code is used to transmit an identifier and an alphanumeric password of a network available to the device-based part of the control device as authentication information. The remote control device, in this case a smartphone or tablet, which reads in the QR code, uses the network identifier and the alphanumeric password transmitted to it to establish a connection with the device-based part of the control device. Without knowledge of the network identifier and password, according to regulations, communication cannot be established between the remote control device and the device-based part of the control device. Without such communication, the remote control device cannot be used as part of the control device of the rock modification device.

[0005] The disadvantage of this solution, which is in principle very practical, is that a qualitatively high-quality monitor is required on the device-based part of the control device in order to be able to output the QR code there in a readable manner.

[0006] Furthermore, it typically comprises a material loading device for loading the rock material to be processed, at least one conveying device for conveying material between two locations and / or discharging the rock material, and a control device for controlling a device component of the rock changing device. The rock changing device as a device component operates in an environment subject to dirt and dust, which may impair the output quality of the monitor displaying the QR code to the extent that the QR code displayed thereon can no longer be easily and error-free read in by the remote operating device.

[0007] A preferred rock modification device according to the invention is a rock processing device which additionally comprises at least one working device consisting of a crushing device and a screening device. The at least one conveying device can then be designed for conveying rock material from the material charging device to the at least one working device, from the at least one working device to the stockpile discharge opening and, if necessary, for further conveying of the rock material within the rock processing device. Preferably, the rock processing device has more than one conveying device.

[0008] DE 20 2004 006 887 U1 discloses a processing plant for mineral materials, which has sensors and regulating elements which are connected to one another in a data transmission manner via a field bus. The field bus has a transmitter-receiver connection device, by means of which a user interface can be wirelessly connected to the field bus in order to transmit data between the user interface and the field bus. The user interface can output information about the operating status of the individual machines of the processing plant via a display screen. The operator can act on the regulating elements of the processing plant by actuating corresponding switches and buttons of the user interface. The wireless communication of the known plant can be carried out via a transmitter-receiver connection device. Signal standards for WLAN, GPRS, EDGE and UMTS are implemented.

[0009] DE 20 2004 006 887 U1 does not disclose details about the field bus coupling of the wireless user interface to the machines of the processing facility. However, since the publication emphasizes the preferred use of standard, so it can be assumed that according to The standard measures are usually known in principle. The device's environment searches for a ready-to-pair Equipment, if necessary, The device outputs a four-digit code and the code is manually entered into the corresponding additional The device and positive confirmation involve two Pairing request for pairing of devices.

[0010] From EP 3105646 B1 a method for starting a remote control program of a vehicle for mining rock is described. The method uses a security key as an authentication means, with which the remote control program can be started at the vehicle. In response to the start of the remote control program at the vehicle, the vehicle sends a message to a remote operating device, thereby manipulating the vehicle to be accommodated in the security system of the remote operating device. The remote operating device is then configured to start the remote control mode of the vehicle.

[0011] The security key known from EP 3105646 B1 is preferably a physical key, but may alternatively be a data-based electronic key. A plurality of vehicles or working machines may be accommodated in the security system of the remote control device, so that the remote control device can control more than one vehicle or more than one working machine.

[0012] A device for wireless communication between a plurality of working machines in a waste management system is known from US Pat. No. 1,066,3955 B2. The communication between the working machines is task-based and contains identifiers of the corresponding activities. Summary of the invention

[0013] In particular, based on the SPECTIVE system described above, the object of the present invention is to provide a technical teaching that enables a sufficiently secure authentication of a remote control device as part of a control device of a rock modification device even in cases where there is only a reduced possibility of outputting authentication information. Wireless communication can be achieved on the basis of a sufficiently secure authentication, via which control commands are transmitted from the remote control device to the rock modification device and implemented by the latter. Alternatively or in addition, operating data can be transmitted to the remote control device via wireless communication in order to be output by the remote control device. Thus, if the rock modification device can only output information to a limited extent, either because the existing output device is not designed to output more complex information, such as a QR code, or because the output device has lost its original performance for outputting more complex information due to continuous use in an abrasive environment, a sufficiently secure coupling between the remote control device and the rock modification device can also be achieved.

[0014] According to a method aspect of the invention, the object is achieved by a method having all the features of the embodiments according to the invention.

[0015] The rock modification device involved in the implementation of the method comprises a device-based part of the control device. In this case, the term "device-based" refers to the rock modification device, which is also referred to as "device" in the following text. Likewise, in this application, the prefixing of the expression "device-" before a noun indicates a relationship to the rock modification device.

[0016] The device-based part of the control device is preferably an onboard control device, which is directly or indirectly permanently connected to the machine frame of the rock modification device, for example, at a control console of a machine operator of the rock modification device. Basically, the device-based part of the control device can be any control device, which is already coupled to the rock modification device to control the operation of the rock modification device, so that control signals can be transmitted from the device-based part of the control device to at least one device, such as a data output device, in particular a display device, or / and to at least one actuator and, if necessary, to at least one sensor of the device, and in the case of transmission can cause an action there. Particularly preferably, the device-based part of the control device is also connected to receive signals from at least one actuator or / and at least one sensor of the rock modification device, so that the device-based part of the control device can output or / and take into account signals from at least one actuator or / and at least one sensor when generating future control signals.

[0017] At least the device-based part of the control device comprises a device-data processing device coupled to the rock modification device, a device-data output device connected to the device-data processing device in a data transmission manner, and a device-transmitting and receiving device for wireless data transmission connected to the device-data processing device in a data transmission manner. The device-data processing device preferably comprises one or more integrated circuits and at least one data memory, in which an operating program of the device-data processing device can be stored in a manner executable by the device-data processing device, and data can be stored in the data memory in a manner callable by the device-data processing device.

[0018] The device-data output device is designed to output data in a human-perceptible manner. This allows the data output to be perceptible to an operator. This helps to limit the perceptible range of the outputted data, for example in contrast to non-directionally radiated radio waves. In addition, human-perceptible data can sometimes only be intercepted or ascertained with difficulty by unauthorized third parties, because data that are preferably output only in a human-perceptible manner require only difficult or inaccessible access to the device-data output device for unauthorized persons in order to be able to perceive the data, and because data that are preferably output only in a human-perceptible manner can only be fully detected by third parties under difficult conditions.

[0019] The device-transmitting and receiving unit is used for wireless communication with other transmitting and receiving devices, such as a remote control device which will be described in detail below. The wireless communication can be based on different standards, such as WLAN, mobile radio standards, NFC, RFID or

[0020] Of course, the device-based part of the control device can also have a device data input device in order to input data into the control device. However, in the basic idea of ​​the present invention, this advantageous improvement is not the first consideration.

[0021] Just as the prefix "device" indicates a reference relationship or affiliation with the rock-changing device, in the present application, the prefix "remote-" also indicates a reference relationship or affiliation with the remote operating device. The wireless remote operating device involved in the implementation of the method discussed below includes a remote-data processing device, a remote-data input device coupled to the remote-data processing device in a data transmission manner for inputting data by an operator, and a remote-sending and receiving device coupled to the remote-data processing device in a data transmission manner for wirelessly transmitting data. The remote-data processing device preferably also includes at least one integrated circuit and at least one data storage device. The above content with respect to the device-data processing device applies accordingly to the data storage device of the remote-data processing device, its characteristics and content, mutatis mutandis.

[0022] The method first comprises the following steps:

[0023] i. Prompting the device-data processing device to generate first authentication information with a lower security level. Here, the first authentication information has a lower security level than the second authentication information discussed below.

[0024] According to the basic idea of ​​the present application, the security level of the authentication information is determined by the number of possible combinations of elements forming the authentication information. This number of combinations corresponds to the maximum number of attempts required to successfully overcome the authentication requirements without being allowed by a brute force attack (i.e. simply trying every possible combination of elements).

[0025] In this case, the first authentication information is preferably formed by a smaller character set and / or by a smaller number of characters in the character set compared to the second authentication information discussed below. As a result, the first authentication information is less secure than the second authentication information, but is also only required for a shorter, in particular significantly shorter, period of time than the more secure second authentication information.

[0026] Therefore, even with a very simple or severely damaged device-data output means, the first authentication information can be securely output in a human-perceivable manner.

[0027] Preferably, the first authentication information is formed only by digits, so that its character set includes a maximum of ten different elements. Additionally or alternatively, the first authentication information can have 8 to 40 digits, preferably 10 to 28 digits, particularly preferably 24 digits.

[0028] If the first authentication information is generated, the next method step can be performed:

[0029] ii. Outputting the first authentication information to the device-data output device in a human-perceivable manner.

[0030] "Humanly perceptible" means: capable of being perceived by means of at least one human sense organ. For example, the first authentication information can be output acoustically, which is less preferred, however. This is because the acoustic output is non-directional to a certain extent and can still be perceived at locations where it is not expected to be perceived. The risk can be reduced by selecting the output volume accordingly. However, it should be taken into account that the device and the remote control device are usually located on an established construction site, where there is a noise level that prevents a too drastic reduction in the volume level of the output of the first authentication information.

[0031] Preferably, the first authentication information is optically displayed on a screen or monitor. The operating environment of the device does not hinder the safe optical perception of small-sized characters, such as the characters used on the displays of early mobile phones. When the device-data output device is close enough, this display is very well perceptible, and due to a slightly increased distance, i.e., for example, a distance greater than 2m from the device-data output device, it is no longer recognizable without auxiliary means for a person. For the output of the first authentication information consisting only of numbers or a character set limited in a similar manner, a very simple monochrome monitor is sufficient, which advantageously improves the robustness of the device-data output device and advantageously reduces its manufacturing costs. In addition, the optical output, in contrast to the acoustic output, can only be output in a limited direction or range of directions.

[0032] If the first authentication information has been output in a human-perceptible manner, wherein the operator perceiving the first authentication information can confirm the complete and correct perception by signal input, for example by actuating a switch device such as a switch face or a switch button, the next method step can be performed:

[0033] iii. The operator inputs the first authentication information into the remote-data input device.

[0034] Using a human operator as a middleman for information transmission is currently a security feature: it makes it difficult for the first authentication information to be intercepted by a spy machine.

[0035] After the first authentication information is input into the remote-data input device, the remote operating device and the device-based part of the control device have matching, sufficiently confidential information so that the remote operating device can be authenticated as a device with an increased trust level relative to the device-based part of the control device. To this end, the following method steps can be implemented:

[0036] iv. Establishing wireless communication with the device-based part of the control device through the remote operation device based on the first authentication information.

[0037] Via their respective sending and receiving devices, the remote operating device and the device-based part of the control device can start wireless communication, during which the device-based part of the control device checks whether the first authentication information sent by the remote-sending and receiving device to the device-based part of the control device is correct and complete, and continues to operate the established wireless communication if the check is successful. If the check is unsuccessful, the started wireless communication is immediately terminated, and an error notification is output if desired.

[0038] After successful establishment of communication with the device-based part of the control device, the remote operating device at the rock alteration device is deemed to be authenticated based on the first authentication information.

[0039] This check also includes the use of the first authentication information as an encryption key for encrypting information that the remote control device transmits to the device-based part and which can be decrypted by the device-based part using a further key, as is known in asynchronous cryptography. This is also a check within the meaning of the invention if the first authentication information serves as a basis for modulating a transmission signal that is transmitted by the remote control device to the device-based part of the control device, and the device transmitting and receiving device is configured only for receiving a correspondingly modulated transmission signal.

[0040] In order to increase communication security, the following method steps are carried out after wireless communication has been established between the remote control device and the device-based part of the control device:

[0041] v. Generate second authentication information with a higher security level through the device-data processing device.

[0042] According to the above embodiment, compared with the first authentication information, the second authentication information includes at least one larger character set or / and a larger number of characters. Let m be the number of selectable elements in the set of elements, and n be the number of elements actually used to form the authentication information. Then there are m n The feasibility of forming authentication information from a set of m elements. For n>>m it applies: an increase of m by 1 increases the number of possible combinations more strongly than an increase of n by 1. For m>>n it applies: an increase of n by 1 increases the number of possible combinations more strongly than an increase of m by 1.

[0043] Since the remote control device is a temporarily trusted device for the device-based part of the control device based on the use of the first authentication information, the device-based part of the control device can transmit the second authentication information to the remote control device via the established wireless communication. This is the next method step:

[0044] vi. Wirelessly transmit the second authentication information to the remote operation device.

[0045] The remote control device with the second authentication information now has stronger authentication information that is much more difficult for a third party to guess or “hack” than the first authentication information. The second authentication information can be used by the remote control device in different ways.

[0046] Therefore, after implementing step vi., the method may include the following additional steps to improve communication security:

[0047] vii. establishing wireless communication between the remote operating device and the device-based portion of the control device based on the second authentication information,

[0048] viii. Deactivate the first authentication information.

[0049] The order in which steps vii. and viii. are carried out is not predetermined by the Roman numerals of the steps. The first authentication information may be deactivated before the second authentication information.

[0050] Deactivating the first authentication information means that wireless communication cannot be established or maintained between the remote control device or any other device or apparatus and the device-based part of the control device based on the first authentication information. To this end, step i. needs to be re-implemented after deactivating the first authentication information.

[0051] Based on the second authentication information, wireless communication can be re-established between the remote operating device and the device-based portion of the control device.

[0052] After successful establishment of communication with the device-based portion of the control device, the remote operating device at the rock altering device is deemed to be authenticated based on the second authentication information.

[0053] In principle, the generation of the first authentication information according to the above step i. can be caused by actuating a corresponding switch device, such as a switch face or / and a switch or / and a button, at the device-based part of the control device. For this purpose, it is necessary that the operator has access to the device-based part of the control device and knows which operation or operations caused the generation of the first authentication information. Alternatively or additionally, causing the generation of the first authentication information can include checking the compatibility of the authentication secret on the operator side with the authentication secret on the device side.

[0054] For example, the operator-side authentication secret can be a key or an electronic data storage device, and the device-side authentication secret can be a lock cylinder with a pin locking device corresponding to the key or a reader device and a device-side data storage device.

[0055] In the combination of key and lock cylinder, the compatibility check is to check the movability of the lock cylinder in the lock housing, so that a switch indicating a successful compatibility check can be actuated by rotating the lock cylinder in the lock housing.

[0056] In the combination of data memory and reading device / checking program, the compatibility check can include or be a comparison of the data read out and stored in the device-side data memory and / or a calculation operation based on the data read out and stored on the device-side.

[0057] Although step v. can be automatically performed after wireless communication is established based on the first authentication information, it is more advantageous for the security of communication that the method includes a step of transmitting the request signal from the remote control device to the device-based part of the control device between step iv. and step v., wherein the generation of the second authentication information with a higher security level by the device-data processing device in step v. is only implemented after the request signal enters the device-data processing device. It can therefore be ensured that the second authentication information is generated only when the remote control device and / or the operator are ready for this. The request signal can be generated automatically by the remote control device, or by the operator through corresponding manipulation of at least one operating mechanism, such as a switch surface and / or a switch button and / or a key. Similarly, the transmission of the generated request signal can be caused automatically by the remote control device, or by the operator correspondingly manipulating at least one operating mechanism.

[0058] The device-data processing device can be designed to delete the first authentication information again after a predetermined time interval has elapsed since the generation of the first authentication information or the output of the first authentication information in a human-perceptible manner. The predetermined time interval is preferably not more than 5 minutes, which is easily sufficient to enter an 8- to 40-digit string into the remote control device. It is to be demonstrated only as an example that a twelve-digit string formed by the digits 0 to 9 as the first authentication information forms 10 12 The feasibility of the combination of the first authentication information. Assuming that the mobile computer available near the use location of the rock changing device can try 200 million character strings per second, the mobile computer will need 5000 seconds, that is, about 1 hour and 23 minutes, to test all available combinations. In no more than 5 minutes, the brute force attack can only test less than one thousandth of the feasible combinations. The success probability of such an attack is correspondingly low.

[0059] It is usually desirable to connect not only one but several wireless remote control devices to the rock modification device as a temporary part of its control device. In this case, a method which is advantageous from the point of view of system security is that for a further wireless remote control device to be coupled to the rock modification device, the method starting from step i. is not carried out as described above, but the less secure first authentication information is reused. Instead, it is preferred that the remote control device comprises a remote data output device for outputting data which is coupled to the remote data processing device in a data transmission manner, wherein the method comprises the following further steps:

[0060] a. outputting the second authentication information by means of a remote control device - a data output device,

[0061] b. reading in the second authentication information by means of another remote data recording device of another wireless remote control device, wherein the other wireless remote control device comprises another remote data processing device, another remote data recording device coupled to the other remote data processing device in a data transmission manner for recording data, and another remote-transmitting and receiving device coupled to the other remote data processing device in a data transmission manner for wirelessly transmitting data, and

[0062] c. Establishing wireless communication between another remote operating device and the device-based part of the control device based on the second authentication information.

[0063] The remote control device and the other remote control device can be any remote control device. In particular, at least one of the remote control devices formed by the remote control device and the other remote control device can be a smartphone or a tablet. Smartphones and tablets have high-quality monitors with high resolution and clear image reproduction as preferred remote data output devices. In addition, these devices have a high-quality camera as a remote data recording device, which has a resolution that is also high enough to read in the second authentication information output from the monitor of the remote control device. The remote data recording device can be part of the remote data input device or can be the remote data input device.

[0064] For the reasons mentioned above, the optical output of the second authentication information and the optical reading of the second authentication information are again a preferred method. However, in principle, the second authentication information can also be output and "read" acoustically. Using electromagnetic wave transmission, for example, NFC or RFID or Standard electromagnetic wave transmission is also considered as output and input.

[0065] In order to avoid unwanted monitoring or ascertainment of the second authentication information, it can be proposed according to an improved solution of the present invention that the remote data output device of the remote control device outputs the second authentication information to only a limited spatial area, so that when the second authentication information is in the limited spatial area, the second authentication information can only be read in by another remote data recording device. This is the case, for example, in the following case: the remote data output device displays the second authentication information on a monitor. The monitor has a display side and a back side and is visible only on the display side. Usually, the monitor is read only within a viewing cone with the normal vector as the cone axis determined by the structure of the monitor relative to the normal vector on the display side of the monitor. Additionally or alternatively, the remote data processing device can select a display size on the monitor that only produces a machine-readable result at a certain distance, such as 1m or 2m. The remote data output device preferably outputs the second authentication information in a coded manner, for example as a QR code. The use of a QR code not only allows a compressed display of the second authentication information, but also allows a further reduction in the effective range of the displayed second authentication information, since the details of the QR code on a monitor, such as that of a smartphone or tablet, can only be clearly identified with great difficulty at a distance of half a meter or 1m.

[0066] Preferably, the second authentication information is stored at the remote control device in a remote data memory. The second authentication information preferably remains active until revoked or, if necessary, until a predetermined or determinable time interval has elapsed, so that a remote control device that has been authenticated by means of the second authentication information can be reauthenticated directly by means of the second authentication information at the device-based part of the control device after termination of its communication connection with the device-based part of the control device. Termination of the communication connection can be caused, for example, by switching off the remote control device, by switching off the device-based part of the control device or by moving the remote control device out of the transmission range of the remote transmitting and receiving device and the device transmitting and receiving device.

[0067] In addition to the coupling of two remote control devices to one rock modification device, the coupling of one remote control device to two or more rock modification devices is also of interest. This is because two or more rock modification devices usually work in conjunction with one another at their point of use, for example in that one rock modification device receives modified material as material to be modified from another rock modification device. For the following description, the rock modification device described above will be referred to as "first rock modification device".

[0068] As long as the other rock modification device has a sufficiently high-performance monitor, the remote control device can be coupled to the other rock modification device in the usual way based on the exchanged authentication information by outputting authentication information, such as a QR code, on the monitor and automatically reading in the authentication information using a corresponding reading device of the remote control device, such as a remote data logging device.

[0069] If such a monitor is not provided or the exchange of authentication information described in the previous paragraph cannot be performed for some reason, for the purpose of coupling the remote control device with more than one rock modification device, for example for the purpose of coupling the remote control device authenticated at the first rock modification device based on at least the first authentication information, i.e. based on the first authentication information and the second authentication information, with another rock modification device, steps i. to vi. may be implemented to authenticate the remote control device as a temporary part of another control device of another rock modification device. Preferably, the remote control device can already communicate wirelessly with the first rock modification device based on the second authentication information or has already communicated wirelessly with said first rock modification device.

[0070] According to a technical alternative of the present invention, the remote control device can be designed to be able to simultaneously wirelessly connect to the rock modification device or its device-based control device. In this case, after the remote control device is authenticated at the device-based control device of the first rock modification device, it can terminate the device-based partially established or established wireless communication with the control device of the first rock modification device at least by first authentication information, but preferably by second authentication information, in order to establish and establish another wireless communication with another rock modification device.

[0071] If the remote control device is designed to establish simultaneous wireless communication connections with more than one rock modification device or its device-based control device, a wireless communication connection can be established or set up with another rock modification device while a wireless communication connection with a first rock modification device is in place. A switch can then be made at the remote control device between the coupled rock modification devices in order to select one wireless communication connection as the active wireless communication connection for signal transmission, while the remaining wireless communication connections are set to standby or executed in the background.

[0072] As in the first rock changing device described above, another rock changing device includes at least one other device-data processing device coupled to another rock changing device, another device-data output device connected to the other device-data processing device in a data transmission manner for outputting data in a human-perceptible manner, and another device-transmitting and receiving device connected to the other device-data processing device in a data transmission manner for wirelessly transmitting data, as a device-based part of another control device of the other rock changing device. The previous contents regarding rock changing devices and their constructions are also applicable to the other rock changing device currently under discussion with necessary modifications. In steps i. to vi., one device of the device-based part of the control device is replaced by another corresponding device of the device-based part of another control device. Therefore, the same remote operating device can be coupled to two or more rock changing devices step by step and wireless communication can be established between the remote operating device and each of the rock changing devices. According to the above embodiment, multiple wireless communication connections can exist successively or simultaneously.

[0073] For the reasons for the increased communication security already explained above, it is advantageous if the remote control device and the device-based part of the further control device carry out steps vii. and viii. as follows: the device-based part of the control device is replaced by the device-based part of the further control device. Thus, wireless communication can be established successively or simultaneously between the remote control device and each of the rock modification devices with respect to which the remote control device is authenticated. In this case, the first authentication information with a lower security is only always required in the initial phase of the first communication setup.

[0074] If a remote control device is authenticated with respect to at least two rock modification devices, then according to an advantageous development, a facility queue can be formed from the at least two rock modification devices that communicate successively or simultaneously with the same remote control device in terms of control technology. The method therefore preferably includes the step of forming a facility queue from the devices that communicate wirelessly successively or simultaneously with the remote control device based on the corresponding second authentication information, i.e. the rock modification device and the other rock modification device.

[0075] The facility queue can also be formed in the following manner: the rock change devices are coupled to each other by means of the remote operation device for signal transmission by sequentially or simultaneously coupling the remote operation device with the rock change devices selected for forming the facility queue, and the remote operation device is directly connected to only one of the rock change devices connected to the facility queue for wireless communication. The facility queue thus formed forms a master-slave system, in which the rock change device directly coupled to the remote operation device forms the master device, and at least one rock change device indirectly coupled to the remote operation device via the master device forms the slave device.

[0076] In order to prevent impairment of the wireless communication, the method preferably comprises the step of disconnecting the wireless communication existing between the remote operating device and the rock modification device upon occurrence of a predetermined triggering event. The triggering event may be correspondingly predefined, for example when a previously authenticated remote operating device or one of the previously authenticated remote operating devices loses wireless communication contact with the rock modification device or with one of the rock modification devices.

[0077] If the generation of first authentication information is caused at a rock changing device that communicates with the remote operating device, preferably not only the wireless communication between the remote operating device and the rock changing device that wirelessly communicates with the remote operating device should be terminated, but also the authentication based on the second authentication information should be deleted or deactivated. In the case of a formed facility queue, this preferably applies if the generation of first authentication information is caused at one of the rock changing devices of the facility queue. The generation of the first authentication information indicates that a new authentication of the remote operating device should be performed at the device-based part of the control device of the rock changing device. Under the basic assumption that the first authentication information is not requested without reason, the existing wireless communication between the device-based part of the control device of the device and the remote operating device is terminated.

[0078] Following termination of the communication, all activated authentication information is preferably deactivated at the at least one rock altering device.

[0079] The above object can also be achieved by a machine group consisting of a rock changing device and a wireless remote control device,

[0080] wherein the rock modification device comprises as device components a material loading device for loading the rock material to be processed, at least one conveying device for conveying the material between two different locations, and a control device for controlling at least one device component of the rock modification device,

[0081] The control device comprises, as device-based parts, a device-data processing device coupled to the rock modification device, a device-data output device connected to the device-data processing device in a data transmission manner for outputting data in a human-perceptible manner, and a device-transmitting and receiving device connected to the device-data processing device in a data transmission manner for wirelessly transmitting data,

[0082] The wireless remote control device includes a remote data processing device, a remote data input device coupled to the remote data processing device in a data transmission manner for inputting data by an operator, and a remote sending and receiving device coupled to the remote data processing device in a data transmission manner for wirelessly transmitting data.

[0083] The rock modification equipment and the wireless remote control device constitute a temporary part for authenticating the remote control device as a control device to implement the method as described and improved above.

[0084] Preferably, the rock modification device is a rock conveying device or a rock processing device which additionally has at least one working device as at least one further device component, which working device is composed of a crushing device and a screening device.

[0085] The above description of the method also refers to the description of the machine assembly for carrying out the method.

[0086] As already described above in conjunction with the method, the same remote control device can be coupled successively or simultaneously to more than one rock modification device for wireless communication, so that the remote control device is then also part of the control device of the other rock modification device. In the case of a preferred development of the invention, the machine group comprises a further rock modification device, wherein the further rock modification device comprises as device components a further material loading device for loading the rock material to be processed, at least one further conveying device for conveying material between two different locations and a further control device for controlling device components of the further rock modification device,

[0087] The other control device comprises, as device-based parts, another device-data processing device coupled to the other rock modification device, another device-data output device connected to the other device-data processing device in a data transmission manner for outputting data in a human-perceptible manner, and another device-transmitting and receiving device connected to the other device-data processing device in a data transmission manner for wirelessly transmitting data,

[0088] The wireless remote control device and the other rock changing device are configured to authenticate the remote control device that has been authenticated at the rock changing device based on at least first authentication information as a temporary part of another control device, for implementing steps i. to vi. as follows: To this end, in steps i. to vi., one device based on the device part of the control device is replaced by another corresponding device based on the device part of another control device of another rock changing device.

[0089] The further rock modification device may also include or may be a rock conveying device or a rock processing device which additionally has at least one working device as at least one further device component, which working device is composed of a crushing device and a screening device.

[0090] According to the above explanations, the rock modification device and the further rock modification device can preferably form an installation train as a coordinated rock modification device in terms of control technology.

[0091] Likewise, according to the detailed explanations already provided above, the rock modification device can wirelessly communicate with more than one remote control device, so that more than one remote control device is a temporary part of the control device of the rock modification device. In the preferred embodiment, the remote control device includes a remote data output device for outputting data, which is coupled to the remote data processing device in a data transmission manner, wherein the machine group includes another wireless remote control device, wherein the other wireless remote control device includes another remote data processing device, a remote data recording device for recording data, which is coupled to the other remote data processing device in a data transmission manner, and another remote-transmitting and receiving device for wirelessly transmitting data, which is coupled to the other remote data processing device in a data transmission manner,

[0092] The rock modification equipment, the remotely operated device and the further remotely operated device are configured to implement the method as described and improved above.

[0093] By means of the remote control device, the operator can preferably control at least one system component of the rock modification system via the wireless communication which has been established, ie can activate and / or deactivate a system component and / or change its operating state.

[0094] Preferably, the wireless communication between the device and the remote operating device established based on the first authentication information is only used for the purpose of establishing wireless communication based on the second authentication information. Therefore, preferably, except for possibly causing the device-data processing device to generate and transmit the second authentication information to the remote operating device, the wireless communication established between the device and the remote operating device based on the first authentication information does not allow the operator to control the device components. BRIEF DESCRIPTION OF THE DRAWINGS

[0095] The present invention will be described in detail below with reference to the accompanying drawings. The accompanying drawings show:

[0096] Figure 1 A rough schematic diagram showing a machine group according to the invention is shown,

[0097] Figure 2 A rough schematic block diagram showing an authentication method according to the present invention is shown,

[0098] Figure 3 The invention is shown in Figure 1 A schematic block diagram of an improved method for authenticating another remotely operated device at a rock changing device of a machine group, and

[0099] Figure 4 Show Figure 1 A rough schematic diagram of a machine group according to the invention, which is extended by a further rock modification device. DETAILED DESCRIPTION

[0100] The drawings are not true to scale, but rather depict size relationships correctly.

[0101] exist Figure 1 1 shows a rock modification device 12 as a rock processing device, which has an impact crusher 14 as a crushing device and a prescreen 16 and a postscreen 18 as screening devices. The location of use of the rock modification device 12 is currently preferably a quarry, but it can also be a recycling station or a demolition site of one or more buildings.

[0102] The material M to be processed by the rock modification device 12 , ie to be sorted and comminuted according to size, is loaded discontinuously into the material charging device 22 by an excavator (not shown) as a loading device of the rock modification device 12 using a funnel-shaped material buffer 24 .

[0103] A vibrating conveyor designed as a trough conveyor 26 as a conveying device conveys the material M from the material charging device 22 to the prescreen 16, which has two prescreen plates 16a and 16b. The upper prescreen plate 16a has a larger screen size and separates the following particle sizes and conveys them to the impact crusher 14: the particle sizes need to be comminuted according to the corresponding regulations for the final granular product to be achieved.

[0104] The particles falling through the upper pre-screen plate 16a are further sorted by the lower pre-screen plate 16b into a usable particle component (Nutzkorn-Fraktion) 28 and an undersized particle component (Unterkorn-Fraktion) 30, wherein the usable particle component corresponds to the specifications of the final particle product to be achieved, and the undersized particle component has a particle size so small that it cannot be used as useful particles.

[0105] The number of piles or components shown in the embodiment is only exemplary. The number may be greater or less than the value given in the example. In addition, the oversized particle component 30 interpreted as waste in this example may also be a useful particle component as long as the particle size range accumulated in the component 30 can be used for other applications.

[0106] The usable particle component 28 is increased by the crushed material output by the impact crusher 14 and is transported to the rear screen 18 by another conveying device 32 in the form of a belt conveyor. In the illustrated embodiment, the rear screen 18 also has two screen plates or rear screen plates 18a and 18b, wherein the upper rear screen plate 18a has a larger screen hole size. The upper rear screen plate 18a allows useful particles to fall through its screen holes and sort out an oversized particle component 34 having a particle size greater than the maximum desired particle size of the useful particles. The oversized particle component 34 is led back to the material input part or prescreen 16 of the impact crusher 14 through the oversized particle conveying device 36. In the illustrated embodiment, the oversized particle conveying device 36 is configured as a belt conveyor.

[0107] The usable particles of the usable particle component 28 thus include oversized particles and useful particles. In contrast to the illustration in the present exemplary embodiment, the oversized particle conveying device 36 can be pivoted out of the machine frame 50 of the rock modification device 12, for example, so that the oversized particle component 34 is deposited and not fed back.

[0108] The useful particles falling through the sieve holes of the upper rear screen plate 18a are further separated into a fine particle component 38 having a smaller particle size and a medium particle component 40 having a larger particle size by the lower rear screen plate 18b. The fine particle component 38 is accumulated and stacked into a fine particle pile 44 by a fine particle discharge conveying device 42 configured as a belt conveyor. The medium particle component 40 is accumulated and stacked into a medium particle discharge conveying device 46 also configured as a belt conveyor. Figure 1 A medium particle pile not shown.

[0109] As a central structure, the rock modification device 12 has a machine frame 50, to which the device components are directly or indirectly fixed or supported. As a central power source, the rock modification device 12 has a diesel internal combustion engine 52 supported on the machine frame 50, which generates all the energy consumed by the rock modification device 12, as long as the energy is not stored in an energy storage device, such as, for example, a battery. In addition, the rock modification device 12, if present, can be connected to the construction site electricity on the construction site side.

[0110] The rock changing device 12, which can be part of a rock changing facility having a plurality of rock changing devices arranged in a common material flow, is in the example shown a mobile, more precisely self-propelled rock changing device 12 having a tracked travel mechanism 54 which, via a hydraulic motor 56 serving as a drive for the rock changing device 12, is able to achieve automatic position changes without the need for an external traction machine.

[0111] The rock modification device 12 comprises a device-based part of a control device 60 of the rock modification device 12, for example in the form of an electronic data processing system with integrated circuits. The device-based part 62 of the control device 60 enables the operation of the control device components. For this purpose, the control device 60 can, for example, directly control the drives of the device components or control actuators, which in turn can move components.

[0112] The device-based part 62 of the control device 60 comprises a device-data processing device 64, a device-data output device 66 connected to the device-data processing device 64 in a data transmission manner for outputting data in a human-perceptible manner, and a device-transmitting and receiving device 68 connected to the device-data processing device 64 in a data transmission manner for wirelessly transmitting data. A device-data memory 70 is connected to the device-data processing device 64 in a data transmission manner, in which the operating program and operating data of the device-based part 62 of the control device 60 are stored. During the operation of the rock modification device 12, data can be stored in the device-data memory 70 and can be called up therefrom. For inputting data, the device-data input device 72 is connected to the device-data processing device 64 in a data transmission manner. The device-data output device 66 preferably comprises a monitor. The device-data input device 72 preferably comprises keys and switches or switch buttons.

[0113] In the present case, the machine-based part 62 of the control device 60 is an onboard data processing facility which is physically fixedly connected directly or indirectly to the machine frame 50 , for example to an operator's console. The machine-based part 62 of the control device 60 is a permanent part of the control device 60 .

[0114] As a temporary part of the control device 60, the remote control device 82 can be wirelessly connected to the device-based component 62 of the control device 60. To do this, the remote control device 82 must be authenticated with respect to the device-based portion 62 of the control device 60.

[0115] The remote control device 82 includes a remote data processing device 84, which has a remote data output device 86, a remote transmission and reception device 88 connected to the remote data processing device 84 in a data transmission manner, a remote data storage device 90 connected to the remote data processing device 84 in a data transmission manner, and a remote data input device 92 connected to the remote data processing device 84 in a data transmission manner. The remote transmission and reception device 88 is configured to transmit signals directly using the device transmission and reception device 68, that is, to receive signals from the device transmission and reception device 68 and to transmit signals to the device transmission and reception device. The corresponding situation also applies to the device transmission and reception device 68.

[0116] The remote control device 82 is physically separate from the rock modification device 12 and the device-based part 62 of the control device 60. In the preferred case, the remote control device 82 is portable, for example in the form of a smartphone. The once established communication connection of the remote control device 82 with the device-based part 62 of the control device 60 is preferably the only connection with the rock modification device 12. Preferably, the communication connection is wireless. The remote control device can also be temporarily connected to the device-based part 62 of the control device 60 using a cable, such as a USB cable.

[0117] The remote control device 82 also has a camera as a remote data recording device 94 .

[0118] Furthermore, a further remote control device 82 ′ can be connected to the device-based part 62 of the control device 60 for wireless communication, so that at least one device component of the rock modification device 12 can also be controlled by the further remote control device 82 ′.

[0119] The further remote control device 82' is constructed in the same manner as the remote control device 82. As already mentioned in the introduction to the description, the components of the further remote control device are indicated in the same manner as the components of the remote control device 82, but are distinguished from the components of the remote control device 82 by adding the attribute "in addition" or "other". In order to delimit the other remote control device components of the further remote control device 82' from the remote control device components of the remote control device 82, the other remote control device components are provided with the same reference numerals as the remote control device components of the remote control device 82, but with a prime.

[0120] Reference below Figure 2 The method steps carried out in order to authenticate the remote control device 82 as a temporary part of the control device 60 are explained.

[0121] In step S10, the device-data processing device 64 is prompted to generate the first authentication information. In order to ensure that an authorized operator is physically present at the rock modification device 12 to prompt the generation of the first authentication information, the key 96 is used as an authentication secret on the operator side and the lock cylinder 98 is used as an authentication secret on the device side to prompt the generation of the first authentication information. Only when the correct key 96 is inserted into the correct lock cylinder 98, the lock cylinder can be rotated relative to the lock housing, thereby operating a switch at the device-based part 62 of the control device 60, which triggers the generation of the first authentication information A1 through the device-data processing device 64.

[0122] Then, according to step S12, the 12-digit string is displayed as the generated first authentication information A1 at the device-data output device 66. The operator who caused the first authentication information A1 to be generated at the device-based part 62 of the control device 60 can read the display from the device-data output device 66 and input it into the remote operation device 82 via the remote data input device 92 according to step S14.

[0123] The first authentication information A1 contains information about the addressing of the device transmitting and receiving device 68 , for example the device ID of the device transmitting and receiving device 68 or the network ID of a wireless network used by the device-based part 62 of the control device 60 .

[0124] The first authentication information A1 also contains a password or a character chain, with which the remote control device 82 can be authenticated as a trusted device relative to the device-based part 62 of the control device 60. The remote data processing device 84 can extract information about the addressing of the device-transmitting and receiving device 68 and the password from the first authentication information A1 based on its operating program stored in the remote data memory 90, and design the signal to be transmitted to the device-transmitting and receiving device 68 so that the device-data processing device 64 can check the compatibility of the signal with the first authentication information A1 also stored in the device data memory 70 of the device-data processing device 64 after receiving the signal.

[0125] Now, wireless communication is established between the remote control device 82 and the device-based part 62 of the control device 60 according to step S16. For this purpose, the remote control device 82 transmits a signal wirelessly to the device-based part 62 of the control device 60 by means of the remote-transmitting and receiving device 88, and the device-based part receives the signal by means of the device-transmitting and receiving device 68. The device-data processing device 64 checks by corresponding calculation operations and / or by comparison with reference information stored in the device-data memory 70 whether the signal received by the remote control device 82 correctly describes the first authentication information A1. If this is the case, the established wireless communication is maintained. According to a preferred embodiment in terms of safety technology, the maintenance is only carried out for a predetermined duration, for example 1 to 3 minutes. Alternatively or additionally, the first authentication information A1 can remain valid only for a predetermined maximum duration, for example 1 to 5 minutes, after it is output in a human-perceptible manner by the device-data output device 66.

[0126] After establishing wireless communication between the remote operation device 82 and the device-based part 62 of the control device 60, the operator operating the remote operation device 82 can preferably transmit a signal from the remote operation device 82 to the device-based part 62 of the control device 60 by operating the remote-data input device 92 according to step S18 within a predetermined duration of maintaining wireless communication, and the signal causes the device-data processing device 64 to generate the second authentication information A2 after receiving the signal according to step S20. Alternatively, the second authentication information A2 can be automatically generated after establishing wireless communication.

[0127] Compared to the first authentication information A1, the second authentication information A2 contains a larger number of characters, wherein additionally, the characters can be selected from a wider character set than the characters of the first authentication information A1. For example, the first authentication information A1 contains 12 characters, each of which is a digit from 0 to 9, while the second authentication information A2 may contain 32 characters, each of which is selected from a character set containing the digits 0 to 9, lowercase letters a to z, and uppercase letters A to Z. The traditional ANSI alphabet set contains 26 letters from A to Z, so that the character set used to form the second authentication information A2 has 62 possible different characters selected at each of its 32 bits. Thereby, due to the existence of 62 32 There are only 10,000,000,000 possibilities to form the second authentication information A2, so the security level of the second authentication information A2 is significantly higher than that of the first authentication information A1, and there are only 10,000,000,000 possibilities to form the first authentication information. For this reason, the first authentication information A1 can be transmitted from the operator who perceives, for example, reads the first authentication information to the remote control device 82 with a lower risk of error.

[0128] After the second authentication information A2 is generated in step S20, the device-based part 62 of the control device 60 transmits the second authentication information A2 to the remote control device 82 via the device-transmitting and receiving unit 68 according to step S22. As a result, the device-based part 62 of the control device 60 and the remote control device 82 now have the same second authentication information at a higher security level. As a result, the remote control device 82 can be part of the control device 60 of the rock modification device 12. The remote control device 82 can always be part of the control device 60 until it is switched off, logged off, its power supply is depleted or the generation of the first authentication information A1 is prompted again.

[0129] In step S24, the remote control device 82 can now establish wireless communication with the device-based part 62 of the security device 60 based on the second authentication information A2. The second authentication information A2 can in turn contain an identifier, such as a device ID or a network ID. For example, as the second authentication information A2 is transmitted to the remote control device 82, and if necessary after receiving a receipt confirmation by the remote control device 82, the device data processing unit 64 can convert the network ID from the network ID encoded in the first authentication information A1 to another network ID encoded in the second authentication information A2. Similarly, a new password or the like is preferably encoded in the second authentication information A2. The remote control device 82 can decode both based on its operating program contained in the remote data memory 90 and accordingly design its signal to be transmitted to the device-based part 62 of the control device 60 based on the second authentication information A2.

[0130] Following the transmission of the second authentication information A2 to the remote control device 82 or after receiving a confirmation of the successful reception of the second authentication message by the remote control device 82 or by the remote control device 82 attempting to establish wireless communication with the device-based part 62 of the control device 60 based on the second authentication information A2, the device-data processing device 64 can deactivate the first authentication information A1. In the illustrated embodiment, the step of establishing wireless communication between the device-based part 62 of the control device 60 and the remote control device 82 should be performed in step S24, and the deactivation of the first authentication information A1 should be performed in step S26. However, the order can also be reversed.

[0131] After wireless communication is established between the device-based portion 62 of the control device 60 and the remote operating device 82, some or all device components of the rock modification device 12 can be controlled by the remote operating device 82. Likewise, the operating states of the device components and the sensor values ​​of the operating sensors at the rock modification device 12 can be displayed or output at the remote operating device 82.

[0132] Preferably, it is only possible to control system components of the rock modification system 12 and output their operating states after wireless communication has been established based on the second authentication information A2, but without the aid of wireless communication established based on the authentication information A1.

[0133] If, in addition to the remote control device 82, another remote control device 82' is also to be authenticated as a temporary part of the control device 60, this cannot be done according to the Figure 2 , since re-implementing step S10 will directly lead to a disconnection of the wireless communication between the device-based component 62 of the control device 60 and the remote control device 82 .

[0134] Therefore, according to Figure 3 In a further method step, which is symbolically shown in FIG. 8 , a further remote control device 82 ′ is integrated into the control device 60 of the rock modification device 12 .

[0135] According to step S30, the first remote control device 82 outputs the second authentication information A2 via its remote data output device 86, more precisely, optically in a coded form, such as a QR code. The optical output has the advantage that the effective range of the information output is very short, so that the information output cannot be intercepted from a long distance undesirably. The coded form has the advantage that it can be read directly by another remote control device 82' and does not have to be input character by character by an operator. The latter can be provided as an alternative measure if the automated reading does not work, for example, due to defects in the remote data output device 86 or due to severe dirt or damage to the camera 94' as another remote data recording device. In accordance with the standard, it is preferred to perform the optical output in a machine-readable coded form.

[0136] The information A3 encoded in a machine-readable manner output to the remote-data output device 86 of the remote operating device 82 contains the second authentication information A2. The information may contain only the second authentication information A2, but is not necessarily limited to this. In addition to the second authentication information A2, the information A3 encoded in a machine-readable manner may also contain other information, such as information about the configuration of the rock modification device 12 and / or the remote operating device 82.

[0137] In step S32, the information A3 displayed at the remote data output device 86 is read in by the other remote data recording device 94' of the other remote control device 82' and transmitted to its other remote data processing device 84'. The other remote data processing device 84' decodes the read information A3 and, according to step S34, sets up its own wireless communication with the device-based part 62 of the control device 60 based on the decoded information A3 including the second authentication information A2, whereby the other remote control device 82' is also authenticated as a temporary part of the control device 60.

[0138] exist Figure 4 1 and 12' are shown in a linked manner. For ease of explanation, the other rock modification device 12' and in particular the device-based part 62' of its control device 60' are constructed essentially identically to the rock modification device 12 and the device-based part 62 of its control device 60.

[0139] It is assumed below that the further rock modification device 12' is also not designed to output sufficiently secure authentication information in coded form, for example in the form of a QR code. Otherwise, a permanent authentication of the remote control device 82 or / and 82' is performed at the further rock modification device 12' by outputting the coded authentication information at the further rock modification device 12' and reading in the authentication information by at least one of the remote control devices 82 or / and 82'.

[0140] If one of the two remote control devices 82 or 82', for which wireless communication with the rock modification device 12 has been established or can be established by carrying out the method steps described above, is to be authenticated also with respect to the other rock modification device 12', then the authentication is re-implemented with the participation of the other rock modification device 12'. Figure 2 Causing the generation of the first authentication information in the other device - the data processing device 64' does not necessarily cause the disconnection of the wireless communication already established between the corresponding remote operating device 82 or 82' and the rock changing device 12', if wireless communication exists during another authentication of the corresponding remote operating device 82 or 82' at the other rock changing device 12', because the control devices 60 and 60' of the rock changing device 12 or the other rock changing device 12' do not initially communicate with each other.

[0141] The corresponding further components of the further device-based part 62' of the further control device 60' of the further rock modification device 12' are implemented in combination with the above Figure 2Under the conditions of those steps described for the components of the device-based part 62 of the control device 60 of the rock changing device 12, the remote operating device 82 and / or another remote operating device 82' can be authenticated relative to another rock changing device 12', and wireless communication between the remote operating device 82 and / or another remote operating device 82' and another rock changing device 12' can also be established, so that the remote operating device 82 and / or another remote operating device 82' can ultimately also control one, multiple or all equipment components of another rock changing device 12' and display their operating status.

[0142] After at least one remote operating device 82 and / or 82' has been authenticated relative to the two rock changing devices 12 and 12' and wireless communication has been established between the rock changing devices 12 and 12' and at least one of the remote operating devices 82 and 82', the two rock changing devices 12 and 12' can be combined into a facility fleet 100 in terms of control technology by corresponding control commands, whether control commands of the device-side part 62 or 62' of the control device 60 or 60' or control commands of the remote operating device 82 or 82'.

[0143] In the described case, causing the generation of the first authentication information at only one of the two device-data processing devices 64 or 64' terminates the wireless communication between each rock-changing device of the facility queue 100 and each authenticated remote operating device.

[0144] Of course, the facility fleet 100 may include more than just two rock modification devices 12 and 12'. Likewise, more than just two remotely operated devices 82 and 82' may be authenticated to communicate wirelessly with the rock modification devices 12.

Claims

1. A method for authenticating a wireless remote control device (82) as a temporary part of a control device (60) of a rock modification device (12), The rock modification device (12) comprises a device-data processing device (64) coupled to the rock modification device (12), a device-data output device (66) connected to the device-data processing device (64) in a data transmission manner for outputting data in a human-perceptible manner, and a device-transmitting and receiving device (68) connected to the device-data processing device (64) in a data transmission manner for wirelessly transmitting data as a device-based part (62) of the control device (60), The wireless remote operation device (82) comprises a remote data processing device (84), a remote data input device (92) coupled to the remote data processing device (84) in a data transmission manner for inputting data by an operator, and a remote transmission and reception device (88) coupled to the remote data processing device (84) in a data transmission manner for wirelessly transmitting data. The method comprises the following steps: i. causing the device-data processing device (64) to generate first authentication information (A1) (S10) having a lower security level, ii. outputting the first authentication information (A1) to the device-data output device (66) (S12) in a human-perceivable manner, iii. the operator inputs the first authentication information (A1) into the remote-data input device (92) (S14), iv. establishing wireless communication (S16) with the device-based portion (62) of the control device (60) through the remote operation device (82) based on the first authentication information (A1), v. After establishing the wireless communication: generating a second authentication information (A2) (S20) having a higher security level by the device-data processing device (64), vi. Wirelessly transmit the second authentication information (A2) to the remote operation device (82) (S22).

2. The method according to claim 1, It is characterized in that The method comprises the following other steps after implementing step vi. (S22): vii. establishing wireless communication between the remote operation device (82) and the device-based part (62) of the control device (60) based on the second authentication information (A2) (S24), viii. deactivating the first authentication information (A1) (S26).

3. The method according to claim 1 or 2, It is characterized in that Prompting the generation of the first authentication information (A1) includes: checking the compatibility of the authentication secret (96) on the operator side and the authentication secret (98) on the device side.

4. The method according to any one of the preceding claims, It is characterized in that The method includes, between step iv. (S16) and step v. (S20): a step (S18) of transmitting a request signal from the remote operating device (82) to the device-based part (62) of the control device (60), wherein the second authentication information (A2) having a higher security level generated by the device-data processing device (64) in step v. (S20) is implemented only after the request signal is received at the device data processing device (64).

5. The method according to any one of the preceding claims, It is characterized in that The remote operation device (82) comprises a remote data output device (86) for outputting data, which is coupled to the remote data processing device (84) in a data transmission manner, wherein the method comprises the following further steps: a. outputting the second authentication information (A2, A3) (S30) by means of the remote-data output device (86) of the remote operation device (82), b. reading the second authentication information (A2, A3) (S32) by means of another remote data recording device (94') of another wireless remote operating device (82'), wherein the other wireless remote operating device (82') comprises another remote data processing device (84'), the other remote data recording device (94') coupled to the other remote data processing device (84') in a data transmission manner for recording data, and another remote-transmitting and receiving device (88') coupled to the other remote data processing device (84') in a data transmission manner for wirelessly transmitting data, and c. establishing wireless communication between the other remote operating device (82') and the device-based part (62) of the control device (60) based on the second authentication information (A2).

6. The method according to claim 5, It is characterized in that The remote-data output device (86) of the remote operating device (82) outputs the second authentication information to only one restricted spatial area, so that the second authentication information can be read by the other remote data recording device (94') only when the other remote data recording device (94') is in the restricted spatial area.

7. The method according to any one of the preceding claims, It is characterized in that Steps i. (S10) to vi. (S22) are implemented to authenticate the remote operation device (82) authenticated at the rock modification device (12) based on at least the first authentication information (A1) as a temporary part of another control device (60') of another rock modification device (12'), wherein the other rock modification device (12') includes another device-data processing device (64') coupled to the other rock modification device (12'), and a device connected to the other device-data processing device (64') in a data transmission manner for outputting data in a human-perceptible manner. Another device - a data output device (66') and another device - a sending and receiving device (68') for wirelessly transmitting data, which is connected to the other device - a data processing device (64') in a data transmission manner, serve as a device-based part (62') of another control device (60') of the other rock changing device, wherein for this purpose in steps i. (S10) to step vi. (S22), one device of the device-based part (62) of the control device (60) is replaced by another corresponding device of the device-based part (62') of the other control device (60').

8. The method according to claim 7, It is characterized in that The remote operating device (82) and the device-based part (62) of the other control device (60) implement step vii. (S24) and step viii. (S26) as follows: the device-based part (62) of the control device (60) is replaced by the device-based part (62') of the other control device (60').

9. The method according to claim 8, It is characterized in that The method comprises the step of forming a facility queue (100) from the devices: the rock modification device (12) and the further rock modification device (12') which are in wireless communication with the remote operation device (82) based on the respective second authentication information (A2).

10. The method according to any one of the preceding claims, It is characterized in that The method comprises the step of disconnecting wireless communication between the remote operating device (82) and the rock modification apparatus (12) in response to the occurrence of a predetermined triggering event.

11. The method according to claim 10, It is characterized in that According to step i. (S10), causing the generation of the first authentication information is a predetermined triggering event.

12. A machine assembly consisting of a rock modification device (12) and a wireless remote control device (82), The rock modification device (12) comprises, as device components, a material loading device (22) for loading rock material (M) to be processed, at least one conveying device (26, 32, 36, 42, 46) for conveying material between two different locations, and a control device (60) for controlling the operation of at least one device component of the rock modification device (12). The control device (60) comprises, as a device-based part (62), a device-data processing device (64) coupled to the rock modification device (12), a device-data output device (66) connected to the device-data processing device (64) in a data transmission manner for outputting data in a human-perceptible manner, and a device-transmitting and receiving device (68) connected to the device-data processing device (64) in a data transmission manner for wirelessly transmitting data, The wireless remote operation device (82) comprises a remote data processing device (84), a remote data input device (92) coupled to the remote data processing device (84) in a data transmission manner for inputting data by an operator, and a remote transmission and reception device (88) coupled to the remote data processing device (84) in a data transmission manner for wirelessly transmitting data. Wherein the rock modification device (12) and the wireless remote control device (82) constitute a temporary part for authenticating the remote control device (82) as the control device (60) to implement the method according to any of the above claims.

13. The machine group according to claim 12, It is characterized in that The machine group comprises a further rock modification device (12'), wherein the further rock modification device (12') comprises as device components a further material loading device for loading the rock material to be processed, at least one further conveying device for conveying the material between two different locations and a further control device (60') for controlling the operation of at least one device component of the further rock modification device (12'), The other control device (60') comprises, as a device-based part (62'), another device-data processing device (64') coupled to the other rock modification device (12'), another device-data output device (66') connected to the other device-data processing device (64') in a data transmission manner for outputting data in a human-perceptible manner, and another device-transmitting and receiving device (68') connected to the other device-data processing device (64') in a data transmission manner for wirelessly transmitting data, The wireless remote control device (82) and the other rock changing device (12') constitute a temporary part for authenticating the remote control device that has been authenticated at the rock changing device (12) based on at least the first authentication information (A1) as the other control device (60'), and for implementing steps i. (S10) to step vi. (S22) as follows: to this end, in steps i. (S10) to step vi. (S22), one device of the device-based part (62) of the control device (60) is replaced by a corresponding other device of the device-based part (62') of the other control device (60') of the other rock changing device (12').

14. The machine group according to claim 13, It is characterized in that The rock modification device (12) and the further rock modification device (12') form a facility train (100).

15. The machine group according to any one of claims 12 to 14, It is characterized in that The remote control device (82) comprises a remote data output device (86) for outputting data, which is coupled to the remote data processing device (84) in a data transmission manner, wherein the machine group comprises another wireless remote control device (82'), wherein the other wireless remote control device (82') comprises another remote data processing device (84'), another remote data recording device (94') for recording data, which is coupled to the other remote data processing device (84') in a data transmission manner, and another remote-transmitting and receiving device (88') for wirelessly transmitting data, which is coupled to the other remote data processing device (84') in a data transmission manner, The rock modification device (12), the remote control device (82) and the further remote control device (82') are configured to carry out the method according to claim 5 or 6.

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