Method and device for monitoring the operation of a personnel transport device

Abstract

The invention relates to a monitoring system and method for monitoring a personnel transportation device. The monitoring system comprises at least one hazard analysis module, an interaction module, a control module and at least one motion detection module, which components are connected to one another via a data network. As soon as the hazard analysis module recognizes a critical situation in the motion sequence recording of the motion detection module, the hazard analysis module sends an alarm signal to the interaction module and the control module, wherein the motion sequence recording associated with the alarm signal is reproduced on the display of the interaction module immediately after receipt of the alarm signal and the control module exerts an influence on the operation in the personnel transportation device associated with the alarm signal. By manually operating an input device, the monitoring personnel can revoke the initiated influence on the operation.

Description

TECHNICAL FIELD

[0001] The invention relates to a method for monitoring the operation of one or more passenger conveying devices and to an apparatus for carrying out the method. BACKGROUND

[0002] Passenger conveying devices, such as escalators and moving walkways, are used, for example, in department stores and shopping malls, but also in railway stations, subway stations and airports. In railway stations, subway stations and airports, the risk of accidents can increase during rush hours if time-pressured users push other users on the passenger conveying devices. Thus, if the step band or the tread band is not stopped by means of an emergency stop device, the pushed passengers can fall on the conveyor belt of the escalator or on the tread band of the moving walkway and suffer severe injuries. Other persons also use the passenger conveying devices as sports and amusement devices, thereby putting themselves and other users at risk.

[0003] Cameras are used for monitoring these passenger conveying devices, the video sequences of which are transmitted in real time to a monitoring room and displayed on a display screen in the monitoring room. In most cases, a plurality of passenger conveying devices is monitored from the monitoring room by a monitoring person, wherein one monitoring person manages a group of passenger conveying devices each. Furthermore, the monitoring person also monitors and operates, within the scope of his assigned group of passenger conveying devices, lighting devices, fire alarm, ventilation devices and, if necessary, other devices, such as safety gates, etc.

[0004] This high density of monitoring activities can lead to a rapid fatigue of the monitoring persons and a reduction of their attention. If a critical situation occurs on one of the passenger conveying devices, the critical situation can worsen due to the reduced attention and, in severe cases, can lead to severe injuries or, in the worst case, to the death of the associated user.

[0005] To solve the above-mentioned problems, the monitoring room is set up in such a way that a critical situation of a user on a passenger conveying device can be automatically recognized by processing the motion sequence recordings by means of image recognition. As soon as a critical situation is recognized, the corresponding motion sequence recording is displayed on the display screen in the monitoring room. The motion sequence recording is provided with an identification number so that the monitoring person can immediately recognize the passenger conveying device of the group of passenger conveying devices on which the critical situation occurred.

[0006] Below the display screen, a number of physical emergency switches are arranged according to the number of monitored passenger conveying devices, wherein each emergency switch is connected to the safety circuit of the corresponding passenger conveying device. As soon as a critical situation occurs, the monitoring person has to find the associated emergency switch of the passenger conveying device displayed in the motion sequence recording with the identification number and operate the emergency switch.

[0007] Such a search can greatly reduce the response speed, so that the intervention of the monitoring personnel occurs too late. In addition, the monitoring personnel in the monitoring room can panic in the attention- arousing scene of the motion sequence recording and press the wrong emergency switch, so that another personnel transport device that should not have been stopped is stopped. The critical situation is thus not alleviated, and the user of the personnel transport device that was stopped by mistake feels inconvenienced, since the stopped device cannot be immediately put back into operation.

[0008] In the case of a sudden stop, such as an emergency stop as defined in the standard (e.g. EN-115), the user, independent of the critical situation, can even fall and be injured. Thus, there can be situations in which the activation of the emergency stop does more harm than good to the user. SUMMARY

[0009] To solve the above-mentioned problems, it is an object of the present application to provide a monitoring system for a personnel transport device, which minimizes the emergency response time of the monitoring system.

[0010] This object is achieved by a method for monitoring the operation of a personnel transport device by means of a monitoring system. The monitoring system comprises a hazard analysis module, an interaction module, a control module and at least one motion detection module. The motion detection module is directed at the associated personnel transport device and can detect an electronically processable motion sequence recording of a situation occurring on the associated personnel transport device.

[0011] In other words, one motion detection module or a plurality of motion detection modules are directed at the associated personnel transport device and continuously record the processes or situations occurring at the moment on the escalator or moving walk. A video camera, a thermal imaging camera, a laser scanner, a TOF camera, a plurality of sensors or the like can be used as motion detection modules, the motion sequence recordings of which are correspondingly detected in electronically processable form as a video film sequence, an image sequence, a thermal image sequence, etc. In the case of a plurality of motion detection modules per personnel transport device, each motion detection module is preferably associated with a specific section or area, so that the entire escalator or the entire moving walk cannot be seen on one motion sequence recording.

[0012] According to the application, the motion sequence recording is transmitted in real time to a hazard analysis module. In the hazard analysis module, the motion sequence recording of the critical situation is examined by means of an analysis algorithm. In other words, using an automated recognition process or analysis method known from the field of monitoring electronics, such as image analysis methods and corresponding algorithms, motion analysis methods and corresponding algorithms, statistical and heuristic evaluation methods, etc., a deviating or atypical combination of features is recognized which deviates from the usual combination of features. Depending on the combination of features of the deviating motion process, the hazard analysis module can determine a critical situation. A possible implementation of this automated evaluation process is described in more detail below.

[0013] As soon as a critical situation exists in the motion sequence recording and is recognized by the hazard analysis module, the hazard analysis module generates an alarm signal. The alarm signal is transmitted to the interaction module and to the control module. On the display screen of the interaction module, the motion sequence recording associated with the alarm signal is reproduced immediately after receipt of the alarm signal. At the same time, the control module exerts an influence on the operation in the personnel transportation device associated with the alarm signal on the basis of the alarm signal.

[0014] In other words, the operation of the personnel transportation device on which the critical situation has been recognized is automatically influenced by the monitoring system. This makes it extremely safe and the reaction time is short, which cannot be achieved by the manual triggering described above.

[0015] However, the critical situation can resolve itself, for example when a fallen user is able to get up by himself. In such a scenario, it is not necessary to immediately stop the operation, which can even harm other users. In order to be able to react adequately to such a situation, the interaction module has an input device which is also activated by means of the alarm signal. By manually operating the input device, the control module is instructed to immediately reverse the influence on the operation initiated by the alarm signal.

[0016] In other words, the input device enables the on-duty monitoring personnel to intervene in the automatic influence on the operation that takes place on the personnel transportation device and to reverse it. The input device can be a button, a buzzer button, a virtually generated key on the display screen (touch screen surface) or the like in this case.

[0017] As described above, the automated recognition process and evaluation process of the critical situation take place in the hazard analysis module, wherein the deviating combination of features recognized by known extraction methods or analysis methods are extracted from the motion sequence recording and then evaluated. In order to perform this evaluation process, a set of possible critical situations can be stored in the hazard analysis module. In this case, the set of possible critical situations comprises various atypical motion scenarios which can be compared with the extracted combination of features from the motion sequence recording.

[0018] The set of atypical movement scenarios can be generated, for example, by a machine learning process in that typical critical situations on the personnel transportation device, such as a fall or a careless behavior, are simulated by means of dummies or stunt actors, detected and the combined features extracted in this case are recorded as atypical movement scenarios in the set of atypical movement scenarios. Of course, such movement scenarios can also be created purely virtually by suitable software and sufficient computing power. Of course, the set of atypical movement scenarios can also be supplemented by other atypical movement scenarios which lead to an accident during the operation of the personnel transportation device and are not recognized by the danger analysis module. In the case of a sufficient congruence of the extracted combined features with an atypical movement scenario, the danger analysis module decides that a critical situation exists and sends an alarm signal to the interaction module and the control module.

[0019] In one design of the application, the various atypical movement scenarios of the set of atypical movement scenarios have different weights in the sense of a priority. Depending on these weights, different actions for influencing the operation can be defined. For example, when a detected user fall has a very high weight and for this an emergency stop is defined as an action, the control module can switch off the switch of the safety circuit of the personnel transportation device, whereby an emergency stop of the operation takes place immediately.

[0020] The user can also prevent a fall, for example, by holding onto the handrail and then standing up again, whereby the user can resolve the critical situation himself. In this case, the user must still be in a semi-upright position. In the danger analysis module, the atypical movement scenario corresponding to this posture can be given a medium weight. In order to give the user sufficient time to "rescue" himself, the control module switches off the switch of the safety circuit of the personnel transportation device only after a specified delay time in the case of a medium weight, whereby an emergency stop of the operation takes place after the expiry of the delay time. In this case, the monitoring personnel also has more time to decide whether to operate or not to operate the input device.

[0021] For example, if the user enters the personnel transportation device against the transport direction of the personnel transportation device, the critical situation can have a high weight and for this a high weight can be set that the control module sends a braking signal to the control device of the personnel transportation device by means of which a braking of the operation of the personnel transportation device is carried out by means of the frequency converter and the operation brake of the personnel transportation device. The braking can be very gentle so that the user on the personnel transportation device does not fall.

[0022] In a further design of the application, the control module outputs an alarm indication and / or a command to the user of the personnel transportation device associated with the alarm signal upon receipt of the alarm signal. An acoustic alarm and / or an optical alarm can be output to the user of the personnel transportation device as an alarm indication via an output module. The output module is arranged in the area of the personnel transportation device associated with the alarm signal. In other words, each personnel transportation device is associated with at least one output module, which is operated depending on the identification number of the alarm signal. The alarm signal is preferably directed to the personnel transportation device, so that the acoustic alarm only affects the user or the individual user of this personnel transportation device and not the entire environment. The output module in this case can be a loudspeaker, a loudspeaker device, a display screen display, a projector for a two-dimensional presentation or a three-dimensional graph, etc. A combined alarm indication or alarm output acoustically and optically is most effective. The alarm to be output can be customized depending on the respective critical situation and its remedy, in order to warn other users before the emergency stop is initiated. There is preferably a set of different alarms, from which the alarm suitable for the critical situation is automatically selected depending on the weight described above and output via the output module.

[0023] In a further design of the application, the monitoring system has a plurality of motion detection modules, which record motion sequence recordings from at least two different personnel transportation devices. Each of the motion detection modules has an identification number, and the motion sequence recordings of the motion detection modules are provided with an identification number or are respectively encoded. As soon as the critical situation is identified in the motion sequence recordings by the danger analysis module, the alarm signal to be output is provided with the same identification number, which has the motion sequence recording corresponding to the critical situation.

[0024] The outputted alarm signal can also be provided with a personnel transportation device identification number by the danger analysis module, which is uniquely or one-to-one associated with the respective identification number of the motion detection module. This association takes place, for example, via an association table stored in the danger analysis module. If the association table is stored in the control module, the association can also take place in the control module. In this case, the alarm signal does not necessarily have to contain the personnel transportation device identification number.

[0025] In other embodiments of the application and in the case of the implementation of weights, in the case of the simultaneous recognition of several critical situations, the hazard analysis module can send the alarm signals with the associated weights one after the other to the interaction module, wherein the motion sequence records are displayed in the order of their weights on the display screen of the interaction module. In other words, the motion sequence record with the most critical situation is highlighted first. Once a predetermined time has elapsed, the motion sequence record with the secondary situation is highlighted, and so on. The change of the next motion sequence record also occurs if the monitoring personnel manually operates the input device.

[0026] As already indicated above, the input device can have a switch to be manually operated, which is preferably activated only as a result of the alarm signal in order to avoid a false operation. However, it is significantly more clear to the monitoring personnel if the interaction module generates a delete input field on the display screen on the basis of the alarm signal for the activation and manual operation of the input device. By manually clicking on the delete input field, the interaction module is prompted to delete the alarm signal and to undo the display of the corresponding motion sequence record associated therewith. As explained in detail above, the effect on the operation initiated by the alarm signal is also automatically undone immediately when the input device is operated.

[0027] In other embodiments of the application, the interaction module can output an optical and / or acoustic alarm to the monitoring personnel upon receipt of the alarm signal in order to divert the attention of the monitoring personnel to the motion sequence record reproduced on the display screen.

[0028] In other embodiments of the application, the interaction module has a plurality of small display screens and one large display screen. The number of display screens corresponds to the number of motion detection modules, wherein the motion sequence record corresponding to the alarm signal is displayed on the large display screen as a result of the presence of the alarm signal. Thus, the motion sequence record with the alarm signal is optically highlighted so that the responsible monitoring personnel pays full attention to this motion sequence record and can better recognize and evaluate the details.

[0029] The hazard analysis module can also fail to recognize a critical situation because, for example, the detected motion profile does not correspond to any atypical motion scenario. In order to solve this problem, the monitoring system can be designed such that each display screen is touch-sensitive and that the motion sequence record reproduced on the small display screen is reproduced on the large display screen when the small display screen is clicked. Furthermore, after a specified preset time, the interaction module sends an alarm signal with the corresponding identification number of the motion sequence record and the associated personnel transport equipment identification number to the control module, which exerts an influence on the operation in the personnel transport equipment associated with the alarm signal on the basis of the received alarm signal. Furthermore, the interaction module also activates the input device of the monitoring system so that by manually operating the input device the control module is instructed in order to immediately undo the influence on the operation initiated by the alarm signal.

[0030] In other words, the monitoring person can notice a situation which appears to him to be critical while reviewing the different display screens. By clicking on a display screen, on the one hand the corresponding motion sequence recording is highlighted optically and more easily viewable. Furthermore, by clicking, an influence on the operation in the corresponding personnel transport device is already prepared. This influence can typically be defined as an emergency stop. In order to give the monitoring person some time for a more precise review, a preset time is specified, after the expiry of which an alarm signal is sent to the control module and the operation is immediately influenced or an emergency stop is effected. If the situation proves not to be critical after careful review, the monitoring person can operate the input device and delete the alarm signal before the alarm signal is sent to the control module or before the influence on the operation initiated by the alarm signal is immediately cancelled.

[0031] In other embodiments of the application, the interaction module can have only a single very large display screen which is divided into a plurality of small display screen areas and one large display screen area. The number of display screen areas corresponds to the number of motion detection modules, wherein, due to the presence of an alarm signal, the motion sequence recording corresponding to the alarm signal is displayed on the large display screen area. Otherwise, the functionality of this embodiment is the same as that of the above-described embodiment with a plurality of display screens. BRIEF DESCRIPTION OF DRAWINGS

[0032] Embodiments of the application are described below with reference to the accompanying drawings, in which the figures and the description are not to be understood as restrictive on the application. Identical or identically acting features have the same reference symbols. Therein:

[0033] Figure 1 a personnel transport device whose operation needs to be monitored and a monitoring system for monitoring the personnel transport device are shown in a three-dimensional view;

[0034] Figure 2 a plurality of personnel transport devices whose operation needs to be monitored and a monitoring system suitable for monitoring the plurality of personnel transport devices are shown in a three-dimensional view. DETAILED DESCRIPTION

[0035] Figure 1A monitoring system 1 for a personnel transportation device 51 is shown. The monitoring system 1 comprises a hazard analysis module 11, an interaction module 21, a control module 31 and two motion detection modules 41, 42. The above-mentioned modules 11, 21, 31, 41, 42 are connected to each other via a data network 3. The design of the data network 3 is not shown in detail, since the data network can be established in a plurality of ways and manners, for example via a local wired and / or wireless data network 3, via an internet connection in a data cloud 5, via a CAN bus system, a Bluetooth connection, etc. It is only relevant to the present invention that the individual modules 11, 21, 31, 41, 42 can exchange data with each other, wherein this data exchange between the individual modules can take place unidirectionally or bidirectionally as required. The most important connections of the data network 3 are symbolically represented by means of arrows. It should also be mentioned that at least the computing unit 29 of the hazard analysis module 11 and possibly also of the interaction module 21 and / or the control module 31 and its data storage and computing unit can be implemented in the data cloud 5.

[0036] The two motion detection modules 41, 42 are directed at the associated personnel transportation device 51. Of course, it is also possible to provide only one motion detection module 41, 42 if the transportation area 53 of the personnel transportation device 51 is not sufficiently long and a single motion detection module 41, 42 is sufficient to cover or detect the entire transportation area 53 of the personnel transportation device 51, the guardrails 54, 55 of the personnel transportation device and the two access areas 56, 57 of the personnel transportation device.

[0037] The motion detection modules 41, 42 can detect an electronically processable motion sequence recording 441, 442 of the events occurring on the associated personnel transportation device 51. The adjacent surroundings of the personnel transportation device 51 can also be included in this case. For example, the area of a building (not shown, in which the personnel transportation device 51 is installed) upstream of the access areas 56, 57 belongs to the adjacent surroundings. The upstream area of the building is also referred to as the front space and is monitored by proximity sensors of the personnel transportation device 51, if necessary, which transmit their detection data to the "automatic start / stop" of the personnel transportation device 51.

[0038] Cameras, thermal imaging cameras, laser scanners, TOF cameras, combinations of a plurality of sensors, etc. can be used as motion detection modules 41, 42, wherein the motion sequence recordings 441, 442 of the motion detection modules are detected in electronically processable form as video film sequences, image sequences, thermal image sequences, etc., respectively. In the case of a plurality of motion detection modules 41, 42 per personnel transportation device 51, each motion detection module 41, 42 is assigned to a specific part or area (see Figure 2are associated with each other. These areas preferably overlap, so that there are no monitoring blind spots that can result in an unobserved critical situation 101 of a user 102.

[0039] For efficient and safe monitoring of the operation of the personnel transport device 51, the motion detection modules 41, 42 transmit their motion sequence recordings 441, 442 in real time in parallel to the interaction module 21 and to the hazard analysis module 11. For this purpose, the motion detection modules 41, 42 are provided with an identification number 441N, 442N of the motion detection module for the motion sequence recording 441, 442 of the motion detection module, so that the motion sequence recordings can be correctly processed in the hazard analysis module 11, the interaction module 21 and the control module.

[0040] In the example of the application, the motion sequence recordings 441, 442 of the two motion detection modules 41, 42 are also displayed in succession on the display screen 22 of the interaction module 21, so that one of the monitoring personnel (not shown) can view the entire operation F of the personnel transport device 51 in real time. In the embodiment of the application, the display screen 22 is divided into a plurality of small display screen areas 24, 25, 26 and a large display screen area 23. For the motion sequence recordings 441, 442 of each motion detection module 41, 42, there is an associated small display screen area 24, 25. As shown in Figure 1 Another small display screen area 26 is defined, in which, for example, operating data of the monitored personnel transport device 51, ventilation devices, fire monitoring devices, etc. can be displayed.

[0041] In parallel to the display on the display screen 22 of the interaction module 21, the motion sequence recording 441, 442 is checked in the hazard analysis module 11 for a critical situation 101 of the user 102 of the personnel transport device 51 by means of an analysis algorithm. This analysis algorithm is based, for example, on known image processing techniques, which are optimized and applied by a self-learning process in the case of artificial intelligence using neural networks. For example, common image processing techniques for generating information from images are, for example, the calculation of a histogram, which gives information about the statistical brightness distribution in the image. This histogram can be used, for example, as a configuration for further image processing steps or as information for a human user of the software. Other computable information of an image is, for example, its entropy or average brightness. Based on this information, a vector analysis can track how individual significant points move in relation to each other in the image sequence and can thus draw conclusions about the motion scenario of the user 102. Once the combined feature 199 of the user 102 has been extracted, symbolically represented as a motion profile, for example, as a profile combined feature 199 and its motion has been identified, this combined feature can be compared with a stored set 16 of atypical motion scenarios 15, which reproduce possible critical situations 101. Of course, instead of the above-described method, other analysis techniques and analysis methods known in the field of video surveillance technology can also be used to extract the combined feature 199 of the user 102 from the motion sequence recording 441, 442.

[0042] As an example, the motion detection module 42, which is arranged further back with respect to the observation plane, has recorded a motion sequence recording 442 with a critical situation 101 and sent it to the hazard analysis module 11. In the hazard analysis module 11, the critical situation 101 is identified by extraction and comparison, and an alarm signal 13 is sent from the hazard analysis module 11 to the interaction module 21 and the control module 31 (dotted line arrow). When the interaction module 21 receives this alarm signal 13, the motion sequence recording 442 associated with the alarm signal 13 is displayed optically on the large display screen area 23.

[0043] As described above, in the case of a critical situation 101, the hazard analysis module 11 sends an alarm signal 13 to the interaction module 21 and the control module 31. The interaction module 21, in turn, displays the motion sequence recording 442 associated with the alarm signal 13 on the large display screen area 23. Figure 1In the embodiment shown, the number of motion detection modules 41, 42 delimits the small display screen areas 24, 25 in such a way that the motion sequence recording 442 displayed on the large display screen area 23 is also displayed in parallel on the associated small display screen area 25. Of course, it is also possible to select the display screen layout of the interaction module 21 in such a way that the number of small display screen areas 24, 25, 26 is one area less than the number of motion detection modules 41, 42, so that the motion sequence recording 441, 442 in which the last recognized critical situation 101 is always continued on the large display screen area 23. As soon as the alarm signal 13 is transmitted to the interaction module 21 again, the respective motion sequence recording 441, 442 is exchanged with the motion sequence recording 441, 442 displayed on the large display screen area 23 or the display screen area.

[0044] Since the interaction module 21 displays the motion sequence recordings 441, 442 displayed on the small display screen areas 24, 25, 26 also on the large display screen area 23 on the basis of the alarm signal 13, the motion sequence recordings 441, 442 are optically highlighted. Of course, these motion sequence recordings 441, 442 can also be highlighted, for example, by a red flashing frame or a yellow flashing frame. In addition, the attention of the monitoring personnel can also be acoustically increased, for example, by a defined signal tone of the alarm 20. Other display layouts are also possible, for example, in the case of the alarm signal 13, in such a way that the respective small display screen area 24, 25, 26 is enlarged instead of the persistently present large display screen area 23.

[0045] Since the critical situation 101 is mostly a dynamic process, it is entirely possible that the recording is first made in the motion sequence recording 443 of the motion detection module 43 arranged more rearward with respect to the observation plane and then in the motion sequence recording 444 of the motion detection module 44 arranged more forward. Since both motion sequence recordings 441, 442 are analyzed simultaneously by the danger analysis module 11, the respective alarm signal 13 having a different identification number 441N, 442N of the motion sequence recording 441, 442 associated therewith is transmitted to the interaction module 21 and the control module 31 in succession. The logic process of automatically switching the motion sequence recording 441, 442 displayed on the large display screen area 23 according to the sequence of the alarm signals 13 is implemented in the computing unit 29 of the interaction module 21.

[0046] In the event of the receipt of the alarm signal 13, the control module 31 exerts an influence on the operation F in the personnel transportation device 51 associated with the alarm signal 13. This means that the control module 31 and the interaction module 21 are activated in parallel for the output of the alarm signal 13, wherein the control module 31 exerts an influence on the operation F and the interaction module 21 reproduces or highlights on its display screen 22 the motion sequence recording 441, 442 related to the alarm signal 13.

[0047] In other words, the operation F of the personnel transportation device 51 on which the critical situation 101 has been identified is automatically influenced by the monitoring system 1. This makes it extremely safe and extremely short in reaction time, which is not possible with pure video monitoring with automatic evaluation and manual triggering.

[0048] However, the critical situation 101 can resolve itself, for example when the fallen user 102 is able to get up on their own. In such a scenario, an immediate emergency stop of the operation F is not necessary and can even harm other users. In order to be able to react adequately to such a situation, the interaction module has an input device 30 which is also activated by means of the alarm signal 13. By manually operating the input device 30, for example by means of a reset command R, the control module 31 is instructed to immediately undo the influence on the operation F initiated by the alarm signal 13. Furthermore, by manually clicking on the input device 30, the interaction module 21 is prompted to delete the alarm signal 13 and undo the highlighting of the corresponding motion sequence recording 441, 442 associated therewith.

[0049] In other words, the input device 30 enables the on-duty monitoring personnel to intervene in the automatically occurring influence on the operation F and undo it. The input device 30 in this case can be a buzzer button 27 shown by a dashed line, a delete input field 28 generated virtually on the display screen 22 (a touch-sensitive display screen surface) or the like.

[0050] The hazard analysis module 11 can also fail to identify a critical situation 101, because, for example, the detected motion profile does not correspond to any atypical motion scenario 15 present in the group 16. To solve this problem, the monitoring system 1 can be designed such that the display screen 22 is touch-sensitive and that when a small display screen area 24, 25 is clicked, the motion sequence recording 441, 442 reproduced by the small display screen area is reproduced on the large display screen area 23. After a specified preset time T, the alarm signal 13 with the corresponding identification number 441N, 442N of the motion sequence recording 441, 442 and the associated personnel transportation device identification number 51N is sent by the interaction module 21 to the control module 31, which exerts an influence on the operation F in the personnel transportation device 51 associated with the alarm signal 13 on the basis of the received alarm signal 13.

[0051] Furthermore, the interaction module 21 also activates the input means 30 of the monitoring system 1, so that by manually operating the input means 30 an instruction to the control module 31 is indicated in order to immediately revoke the influence on the operation F initiated by the alarm signal 13. If the input means 30 are manually operated or another of the small display screen areas 24, 25 is clicked before the expiry of the specified preset time T, the alarm signal 13 is not transmitted to the control module 31. By this, it is also advantageously achieved that the influence on the operation F initiated by the alarm signal 13 is stopped.

[0052] As already mentioned, in the hazard analysis module 11 a set 16 of possible critical situations 101 is stored as atypical movement scenarios 15, with which the combined features 199 extracted from the movement sequence recordings 441, 442 are compared. In the event that the extracted combined features 199 sufficiently coincide with an atypical movement scenario 15, it is decided that a critical situation 101 exists and an alarm signal 13 is transmitted to the interaction module 21 and the control module 31. Depending on the identified movement scenario 15, different actions can be provided as to how the operation F of the personnel transport device 51 needs to be influenced. For this purpose, a set 14 of instructions 17 with instructions 17 is stored in the control module 31. The instructions 17 of the actions to be performed are related to the identified critical situation 101 and are invoked depending on the weight 18X, 18Y, 18Z. For this purpose, each atypical movement scenario 15 has a weight 18X, 18Y, 18Z. Correspondingly, the alarm signal 13 issued by the hazard analysis module 11 is also provided with a weight 18X, 18Y, 18Z.

[0053] Figure 1 It is exemplarily shown how a user 102 of the personnel transport device 51 can stumble and fall in the transport area 53 of the personnel transport device. The movement detection module 42 records this critical situation 101 in its movement sequence recording 442 and transmits this with the set identification 442N to the interaction module 21, where it is displayed in the small display screen area 25 provided for this purpose. In parallel thereto, the same movement sequence recording 442 is also transmitted to the hazard analysis module 11. From the movement sequence recording 442, combined features 199 of the user 102 are extracted by means of image processing methods and compared with the set 16 of atypical movement scenarios 15 stored in the hazard analysis module 11. Since the extracted combined features 199 sufficiently coincide with one of the atypical movement scenarios 15, which defines a stumble, the hazard analysis module 11 transmits an alarm signal 13 to the interaction module 21 and the control module 31 together with a medium weight 18Y defined for a stumble. The transmission of the alarm signal 13 is indicated by the dotted arrow.

[0054] With the transmission of the alarm signal 13, the motion sequence recording 442 of the motion detection module 42 is also displayed on the large display screen area 23 and together with the delete input box 28 of the input device 30.

[0055] In the control module 31, the instructions 17 associated with the weight 18X, 18Y, 18Z are called and executed. In the example of the invention, for the medium weight 18Y, the emergency stop is to be executed after a delay time of t = 2 seconds. After the expiry of the delay time t, the control module 31 switches off the switch 33 of the safety circuit 35 of the personnel transport device 51, which then initiates the emergency stop immediately by means of the control device 59 of the personnel transport device 51. If the supervising person clicks on the input device 30 within the delay time t, the control module 31 aborts the execution of the instructions 17 and does not switch off the switch 33. As indicated by the dashed arrows, the switching off of the switch 33 that takes place is fed back by the safety circuit 35 to the control module 31 and from there to the interaction module 21 and is displayed, for example, in the small display screen area 26.

[0056] The double-line arrow 37 shows that the control module 31 can also access the control device 59 of the personnel transport device 51 directly and can transmit instructions 17 for influencing the run F to the control device 59. This is the case, for example, if the user 102 enters the personnel transport device 51 in the opposite direction to the current direction of transport and sets a reduced transport speed as instructions 17 for this atypical motion scenario 15.

[0057] In Figure 2 Multiple personnel transport devices 61, 71, 81 whose run F is to be monitored are shown in a three-dimensional view in Fig. 1. For this purpose, Figure 1 The monitoring system 1 of Fig. 1 has been adapted accordingly. It also comprises a hazard analysis module 11, an interaction module 21 and a control module 31.

[0058] For monitoring the multiple personnel transport devices 61, 71, 81, the monitoring system 1 also has multiple motion detection modules 43, 44, 45, 46, 46+n, 46+2n. In the embodiment of the invention, two personnel transport devices 61, 71 designed as escalators are shown in detail. The multiple further personnel transport devices 81 are represented by the balustrade drawn in dashed lines.

[0059] Each of these personnel transport devices 61, 71, 81 is associated with two motion detection modules 43, 44, 45, 46, 46+n, 46+2n, which record a motion sequence record 443, 444, 445, 446... from the operation F of "their" personnel transport device 61, 71, 81. Each of the motion detection modules 43, 44, 45, 46, 46+n, 46+2n has an encoding or identification number 443T, 444T, 445T, 446T,... and the motion sequence records 443, 444, 445, 446,... are correspondingly encoded therewith.

[0060] As described in the embodiments of Figure 1 , also in the embodiments of Figure 2 , the motion sequence records 443, 444, 445, 446,... are also sent in parallel to the hazard analysis module 11 and to the interaction module 21. If a critical situation 101A, 101B, 101C is identified, the hazard analysis module 11 sets the outgoing alarm signal 13A, 13B, 13C with the respective identification number 443N, 44N, 445N, 446N,... of the motion sequence record 443, 444, 445, 446,... with the critical situation and sends this alarm signal 13A, 13B, 13C, which is symbolically given by the arrows, for example, to the interaction module 21 and to the control module 31.

[0061] Unlike Figure 1 , Figure 2 , the monitoring module 21 has a central display screen 91 and further display screens 93 to 96+2n arranged next to the central display screen 91, wherein for each motion detection module 43, 44, 45, 46, 46+n, 46+2n there is an associated display screen 93 to 96+2n, which displays its motion sequence record 443, 444, 445, 446,... in real time. When the alarm signal 13A, 13B, 13C is received, the interaction module 21 displays the motion sequence record 443, 444, 445, 446,... associated with the alarm signal 13A, 13B, 13C on the central display screen 91 on the basis of the transmitted identification number 443N, 444N, 445N, 446N,.... In order to optically highlight the associated motion sequence record 443, 444, 445, 446,..., the central display screen 91 has a larger display screen area than the further display screens 93 to 96+2n.

[0062] As shown by the dashed lines, the hazard analysis module 11 stores a one-to-one correspondence between the personnel transport equipment identification numbers 61N, 71N, 81N and the corresponding motion detection module identification numbers 443N, ..., 446N of 43, ..., 46+2n, enabling the control module 31 to influence the operation F of the correct personnel transport equipment 61, 71, 81. This correspondence can be stored, for example, as a table in the storage medium 99 of the hazard analysis module 11. In this case, alarm signals 13A, 13B, 13C must also have corresponding personnel transport equipment identification numbers 61N, 71N, 81N. Alternatively, these correspondences can also be stored in the storage medium 99 of the control module 31. In this case, alarm signals 13A, 13B, 13C do not need to have corresponding personnel transport equipment identification numbers 61N, 71N, 81N.

[0063] exist Figure 2 Different emergency situations 101A to 101C are also exemplarily shown on the personnel transport equipment 61 and 71 and in their surrounding environment. To match these emergency situations 101A, 101B, and 101C, a set of 16 possible emergency situations is stored in the hazard analysis module 11. Specifically, this set of 16 includes various atypical motion scenarios 15, and combined features 199 extracted from motion sequence records 443, 444, 445, 446, ... (see...). Figure 1 This is compared with various atypical motion scenarios. In this case, the possible locations where such emergencies 101A, 101B, and 101C are most likely to occur can also be considered. The atypical motion scenario 15, which involves a fall in the inclined middle section of an escalator, will not occur in the same way in the front space of personnel transport equipment 61, 71, and 81 or in one of the entry areas 56 and 57 (see...). Figure 1 In the hazard analysis module 11, a set of 16 atypical motion scenarios 15 can be generated, for example, through a machine learning process, by using dummies or stunt performers to simulate typical emergency situations 101A, 101B, and 101C on personnel transport equipment 61, 71, and 81 (e.g., falls or reckless behavior). The combined features 199 detected and extracted in these situations can be recorded as atypical motion scenarios 15 in the set 16. Of course, the set 16 can also be supplemented with other atypical motion scenarios 15 that cause accidents during the operation of personnel transport equipment 61, 71, and 81 and are not identified by the hazard analysis module 11. When the extracted combined features 199 sufficiently match the atypical motion scenario 15, the hazard analysis module 11 can determine or confirm the existence of emergency situations 101A, 101B, and 101C, and send alarm signals 13A, 13B, and 13C to the interaction module 21 and the control module 31.

[0064] As symbolically shown by the different sizes of the weights, the various atypical movement scenarios 15 of the set 16 have different weights 18X, 18Y, 18Z in the sense of priority. The critical situation 101A recorded by the movement detection module 43 is identified in the danger analysis module 11 as "falling down" and the associated alarm signal 13A is provided with the highest weight 18Z, since the continuation of the run F can lead to serious injuries of the falling user 102A.

[0065] The critical situation 101B recorded by the movement detection module 44 is identified in the danger analysis module 11 as "entering in the wrong direction" and the associated alarm signal 13B is provided with the lowest weight 18X. Since the wrong entry does not directly put the user 102B in danger, but rather disturbs an oncoming user precisely when leaving the personnel transport device 71.

[0066] The critical situation 101C recorded by the movement detection module 46 is identified in the danger analysis module 11 as "entering with a shopping cart" and the associated alarm signal 13C is provided with the medium weight 18Y. In this case, the female user 102C is only in danger when she reaches the raised middle section of the personnel transport device 61 with her shopping cart.

[0067] As in the embodiment in Figure 1 The instruction set 14 with the instructions 17 in Figure 2 is also stored in a not shown storage medium of the control module 31. The instructions 17 are called up and executed by the control module 31 in accordance with the weights 18X, 18Y, 18Z of the alarm signals 13A, 13B, 13C, respectively. Upon clicking the delete input field 28 of the input device 30, the control module 31 is instructed to undo the effect on the run F or the execution of the called up instructions 17.

[0068] It is noted here that undoing the called up instructions 17 for influencing the run F depends on the type of the instructions 17 and the progress of the execution of the instructions 17 at the time of the manual operation of the input device 30. For example, the instruction 17 "emergency stop" cannot be undone once the switch 33 of the safety circuit 35 has been switched off by the control module 31. As long as the switch 33 is closed, the suspension (stop) is still possible, otherwise the emergency stop is executed until the run F is completely stalled. However, the instruction 17 "slowing down the travel by means of the frequency converter 87 and the brake 88" can also be undone after the start of the execution by means of the input device 30, for example by maintaining the travel speed (stop) of the personnel transport device 61, 71, 81 involved from the point in time of the manual operation of the input device 30 or increasing the travel speed again to the rated speed (undo) according to a prescribed acceleration curve. The above-mentioned suspension criteria for undoing as well as the associated control processes, which are listed by way of example, are preferably also part of the instructions 17.

[0069] In other words, clicking the delete input box 28 always instructs the control module 31 to immediately undo the effect on operation F. Whether the "delete command" is executed, partially executed, or not executed depends on the logic process stored in the control module 31, which takes into account the current operating parameters of the personnel transport equipment 61, 71, 81 and the abort criteria of instruction 17.

[0070] If the motion detection module 43 detects a critical situation 101A, it invokes instruction 17 based on the higher weight 18Z, wherein the control module 31 immediately controls the safety circuit 33 of the personnel transport equipment 71 involved and initiates an emergency stop.

[0071] In the event of a critical situation 101C detected by the motion detection module 46, instruction 17 is invoked based on a moderate weight 18Y, wherein the control module 31 controls the safety circuit 33 of the personnel transport equipment 61 involved with a predetermined delay time t. This provides sufficient time to warn the female user 102C (see below) so that she can leave the front space of the personnel transport equipment 61 before reaching the transport area 63 and initiating a stop.

[0072] If the motion detection module 44 detects an emergency situation 101B, it invokes instruction 17, which is symbolically represented by a three-dotted arrow, and sends instruction 17 from the control module 31 to the control device 73 of the personnel transport equipment 71 involved. Instruction 17 causes the control device 73 to reduce the travel speed of the conveyor belt 75 of the personnel transport equipment 71 involved according to a predetermined delay curve.

[0073] It goes without saying that when two emergency situations 101A and 101B occur simultaneously on the same personnel transport equipment 71 and alarm signals 13A and 13B are rapidly forwarded to the control module 31 in sequence, the control module 31 preferably executes the instruction 17 with higher weight 18Z.

[0074] Due to the passage Figure 2 The monitoring system 1 monitors multiple personnel transport devices 61, 71, and 81. Therefore, as shown in the figure, it is entirely possible for multiple emergency situations 101A, 101B, and 101C to occur simultaneously. In this situation, the hazard analysis module 11 sends alarm signals 13A, 13B, and 13C with corresponding weights 18X, 18Y, and 18Z to the interaction module 21 and the control module 31. Now, in the interaction module 21, motion sequence records 443, 444, 445, 446... are highlighted on the central display screen 91 in sequence using optical and / or acoustic means with the weights 18X, 18Y, and 18Z, so that the monitoring personnel can always prioritize assessing the most critical situations 101A, 101B, and 101C.

[0075] This "sequentially" can be realized in different ways. The respective movement sequence record 443, 444, 445, 446,... within a defined time period can be highlighted before the next movement sequence record 443, 444, 445, 446,... is displayed. The switching to the next movement sequence record 443, 444, 445, 446,... can also be done by clicking the delete input field 28.

[0076] In Figure 2 In an embodiment of the application according to Fig. 1 1, based on the alarm signal 13A, 13B, 13C on the display 91, the interaction module 21 generates a delete input field 28 of the input means 30. By manually clicking the delete input field 20, the interaction module 21 causes the deletion of the alarm signal 13A, 13B, 13C and the withdrawal or no longer displaying on the central display 91 of the optical and / or acoustic highlighting of the respective movement sequence record 443, 444, 445, 446,... related to the alarm signal. At the same time, the control module 31 is instructed to immediately undo the influence on the operation F associated with the deleted alarm signal 13A, 13B, 13C and already initiated.

[0077] In order to warn the user 102A, 102B, 102C about the influence on the upcoming operation F and / or to draw the user's attention to their incorrect behavior, the control module 31 outputs an acoustic and / or optical alarm to the user 102A, 102B, 102C of the people conveyor 61, 71, 81 via the output module 121, 122, 123 in the presence of an alarm signal 13A, 13B, 13C. The output module 121, 122, 123 is arranged in the area of the people conveyor 61, 71, 81 in this case. Preferably, those output modules 121, 122, 123 belonging to the people conveyor 61, 71, 81 which is associated with the alarm signal 13A, 13B, 13C are controlled by the control module 31. In this case, the optical and / or acoustic alarm contains a message related to the critical situation 101 A, 101 B, 101 C. This case is described in more detail below based on the critical situations 101 A, 101 B, 101 C shown in Fig. 1 1. Figure 2 This case is described in more detail below based on the critical situations 101 A, 101 B, 101 C shown in Fig. 1 1.

[0078] In the case of the critical situation 101 A, a "fall" is recognized by the hazard analysis module 1 1 and a corresponding alarm signal 13A is generated. The identification number 443N of the respective alarm signal causes the control module 31 to select the output module 123 which is closest to the movement detection module 43. The acoustic alarm "Attention: emergency stop of escalator" selected for example based on the weight 18Z is transmitted via the wireless connector 97 to the output module 123 designed as a loudspeaker.

[0079] In the case of the critical situation 101 B, "entry in the wrong direction" is recognized by the danger analysis module 11 and a corresponding alarm signal 13B is generated. The identification number 444N of the alarm signal causes the control module 31 to select the output module 121 closest to the movement detection module 44. The acoustic alarm "Attention: wrong entry area" selected, for example, on the basis of the weight 18X, is transmitted via the wireless connector 97 to the output module 123 designed as a loudspeaker.

[0080] In the case of the critical situation 101 C, "entry with shopping cart prohibited" is recognized by the danger analysis module 11 and a corresponding alarm signal 13C is generated. The identification number 446N of the alarm signal causes the control module 31 to select the output module 122 closest to the movement detection module 46. The image with the crossed-out shopping cart as an optical alarm is transmitted via the wireless connector 97 to the output module 122 designed as a display and displayed on the display, for example. Of course, in this case, too, an alarm tone can be output in order to increase the attention to the output module 122. In principle, all devices that can output an acoustic alarm and / or an optical alarm can be used as output modules 121, 122, 123. In this case, so-called holographic projectors are particularly effective, for example, a virtual person can emit an acoustic alarm and gestures to the user 102A, 102B, 102C of the personnel transport device 61, 71, 81 with the aid of a holographic projector.

[0081] Although the personnel transport devices 61, 71, 81 are shown as being designed as a shopping cart, a wheelchair or a trolley, it is obvious that other forms of personnel transport devices 61, 71, 81 can also be used. Figure 1 and Figure 2 Different forms of the monitoring system 1 are shown, but it is obvious that these different forms can be combined with one another. For example, Figure 2 The arrangement of the multiple displays 91, 93, 94, 95, 96 shown can also be implemented in the monitoring system 1 according to Figure 1 and vice versa. Furthermore, if the same critical situation 101, 101 A, 101 B, 101 C is detected by multiple movement detection modules 41,..., 46+2n during the time period thereof, the "automatic switching" of the movement sequence recordings 441, 442 displayed in the large display area 23 described in connection with Figure 1 can also be implemented in the monitoring system 1 according to Figure 2 Of course, the weights 18X, 18Y, 18Z described are not limited to three, each atypical movement scenario 15 can have its own fixedly associated weight 18X, 18Y, 18Z. The same applies to the instruction set 14 with the instructions 17, wherein for each atypical movement scenario 15 or each known critical situation 101 A, 101 B, 101 C, there can be instructions 17 tailored specifically to this.

[0082] Finally, it should be noted that terms such as "have", "include" and the like do not exclude other elements or steps, and terms such as "one" or "a" do not exclude a plurality. Reference signs in the claims should not be considered as limiting.

Claims

1. A method for monitoring the operation (F) of a personnel transportation device (51, 61, 71, 81) by means of a monitoring system (1), wherein, The monitoring system (1) comprises a hazard analysis module (11), an interaction module (21), a control module (31) and at least one motion detection module directed to an associated personnel transport device (51, 61, 71, 81) and capable of detecting an electronically processable motion sequence record for various situations occurring on the associated personnel transport device (51, 61, 71, 81), characterized in that the motion sequence record is transmitted in real time to the hazard analysis module (11) and analyzed in the hazard analysis module for the presence of a critical situation (101, 101A, 101B, 101C) for a user (102, 102A, 102B, 102C) of the personnel transport device (51, 61, 71, 81) in the motion sequence record; an alarm signal (13, 13A, 13B, 13C) is generated by the hazard analysis module (11) as soon as a critical situation (101, 101A, 101B, 101C) is present in the motion sequence record; the alarm signal (13, 13A, 13B, 13C) is transmitted to the interaction module (21) and the control module (31), wherein the motion sequence record associated with the alarm signal (13, 13A, 13B, 13C) is reproduced on a display screen (22, 91, 93, 94, 95, 96, 96+n) of the interaction module (21) immediately after receipt of the alarm signal (13, 13A, 13B, 13C) and the control module (31) exerts an influence on the operation (F) of the personnel transport device (51, 61, 71, 81) associated with the alarm signal (13, 13A, 13B, 13C), and the interaction module (21) activates an input device (30) of the monitoring system (1), wherein the control module (31) is controlled by manual operation of the input device (30) in order to immediately reverse the influence on the operation (F) initiated by the alarm signal (13, 13A, 13B, 13C).

2. The method of claim 1, wherein, a set (16) of possible critical situations (101, 101A, 101B, 101C) is stored in the hazard analysis module (11), wherein the set (16) comprises various atypical motion scenarios (15), combined features (199) extracted from the motion sequence record are compared with the various atypical motion scenarios (15) and, in the event of a sufficient match between the extracted combined features and an atypical motion scenario (15), a critical situation (101, 101A, 101B, 101C) is determined and an alarm signal (13, 13A, 13B, 13C) is transmitted to the interaction module (21) and the control module (31).

3. The method of claim 2, wherein, The various atypical motion scenarios (15) of the set (16) have different weights (18X, 18Y, 18Z) in the sense of a priority.

4. The method of claim 3, wherein, The weight (18X, 18Y, 18Z) is used to influence the operation (F) so that, depending on the weight (18X, 18Y, 18Z), the following is done: The control module (31) opens a switch (33) of a safety circuit (35) of the personnel transport device (51, 61, 71, 81), thereby immediately emergency stopping the operation (F); or The control module (31) opens a switch (33) of a safety circuit (35) of the personnel transport device (51, 61, 71, 81) after a predetermined delay time (t), thereby emergency stopping the operation (F) upon expiration of the delay time (t); or The control module (31) sends a braking signal to a control device (73) of the personnel transport device (51, 61, 71, 81), by means of which a braking of the operation (F) of the personnel transport device (51, 61, 71, 81) is performed by means of a frequency converter (87) of the personnel transport device and an operating brake (88) of the personnel transport device.

5. The method of any one of claims 1 to 4, wherein, The control module (31) outputs an alarm indication and / or a command to the user (102, 102A, 102B, 102C) of the personnel transport device (51, 61, 71, 81) associated with the alarm signal (13, 13A, 13B, 13C) after receiving the alarm signal (13, 13A, 13B, 13C).

6. The method of claim 5, wherein, The control module (31) outputs an acoustic alarm and / or an optical alarm as an alarm indication to the user (102, 102A, 102B, 102C) of the personnel transport device (51, 61, 71, 81) via an output module (121, 122, 123), and the output module (121, 122, 123) is arranged in the area of the personnel transport device (51, 61, 71, 81) associated with the alarm signal (13, 13A, 13B, 13C).

7. The method of claim 6, wherein, The monitoring system (1) has a plurality of motion detection modules which record motion sequence recordings of at least two different personnel transport devices (51, 61, 71, 81), wherein each of the motion detection modules has an identification number and the motion sequence recordings of the motion detection modules are provided with the identification number, and the hazard analysis module (11) provides the outputted alarm signal (13, 13A, 13B, 13C) with a corresponding identification number, wherein a one-to-one correspondence between the identification numbers of the personnel transport devices and the identification numbers of the corresponding motion detection modules is stored in the hazard analysis module (11) or the control module (31), so that the control module (31) influences the operation (F) of the correct personnel transport device (51, 61, 71, 81).

8. The method of claim 6, wherein, In the case of simultaneous recognition of multiple critical situations (101, 101A, 101B, 101C), the danger analysis module (11) sends to the interaction module (21) alarm signals (13, 13A, 13B, 13C) with associated weights (18X, 18Y, 18Z) following one another, in which the motion sequence records are highlighted in succession on the display screen (91) according to their weights (18X, 18Y, 18Z).

9. The method of claim 6, wherein, The interaction module (21) generates a deletion input box (28) on the display screen (22, 91) based on the alarm signal (13, 13A, 13B, 13C) for activating and manually operating the input device (30), and by manually clicking the deletion input box (28) causes the interaction module (21) to delete the alarm signal (13, 13A, 13B, 13C) and cancel the display of the corresponding motion sequence record related to the alarm signal.

10. The method of claim 6, wherein, The interaction module (21) outputs an optical alarm and / or an acoustic alarm to the monitoring personnel responsible for the manual operation of the input device (30) upon receiving an alarm signal (13, 13A, 13B, 13C).

11. The method of claim 6, wherein, The interaction module (21) comprises a plurality of small display screens (93, 94, 95, 96, 96+n) and one large display screen (91), and the number of display screens (91, 93, 94, 95, 96, 96+n) corresponds to the number of motion detection modules, in which due to the presence of an alarm signal (13, 13A, 13B, 13C), the motion sequence record corresponding to the alarm signal (13, 13A, 13B, 13C) is displayed on the large display screen (91).

12. The method of claim 11, wherein, Each of the display screens (91, 93, 94, 95, 96, 96+n) is touch-sensitive, and when a small display screen (93, 94, 95, 96, 96+n) is clicked, the motion sequence record reproduced by the small display screen is reproduced on the large display screen (91), and after a specified preset time (T), the interaction module (21) sends an alarm signal (13, 13A, 13B, 13C) with the corresponding identification number and the related personnel transport equipment identification number to the control module (31), and activates the input device (30) of the monitoring system (1).

13. The method of claim 6, wherein, The display screen (22) of the interaction module (21) is divided into a plurality of small display screen areas (24, 25, 26) and one large display screen area (23), and the number of display screen areas (23, 24, 25, 26) corresponds to the number of motion detection modules, in which due to the presence of an alarm signal (13, 13A, 13B, 13C), the motion sequence record corresponding to the alarm signal (13, 13A, 13B, 13C) is displayed on the large display screen area (23).

14. The method of claim 13, wherein, Said display screen (22) is touch-sensitive and, when a small display screen area (24, 25, 26) is clicked, the movement sequence reproduced by the small display screen area is reproduced on the large display screen area (23) and, after a predetermined preset time (T), an alarm signal (13, 13A, 13B, 13C) with the corresponding identification number and the associated personnel transport equipment identification number is sent by said interaction module (21) to said control module (31) and said input means (30) of said monitoring system (1) are activated.

15. A monitoring system (1) for carrying out the method according to any one of claims 1 to 14, comprising at least one hazard analysis module (11), an interaction module (21), a control module (31) and at least one motion detection module, which components are connected to each other via a data network (3), wherein, Said interaction module (21) comprises input means (30) designed to cancel, immediately after manual operation, the effects on the functioning (F) initiated by said monitoring system (1).

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