WO2022073553A2

WO2022073553A2 - Device and method for monitoring surfaces or spaces

Info

Publication number: WO2022073553A2
Application number: PCT/DE2021/100793
Authority: WO
Inventors: Rene Schönfelder
Original assignee: Schoenfelder Rene
Priority date: 2020-10-05
Filing date: 2021-10-04
Publication date: 2022-04-14
Also published as: WO2022073553A3; DE102020125930A1

Abstract

The invention relates to a device for monitoring surfaces or spaces in order to detect objects located on a monitored surface or in a monitored space or objects entering the monitored surface or the monitored space. A scanning means (1) of the device comprises a transmitting means (7) for transmitting measurement signals and a receiving means (13) for receiving signals reflected from the detected object. The monitored surface or the monitored space can be displayed in a two-dimensional image in a display means (27, 47) of a data-processing system. With the aid of the data-processing system, a partial surface (45, 45a-45e) of the monitored surface or a partial space of the monitored space can be selected, to which partial surface or partial space a predefined action and/or a predefined monitoring function can be assigned. In an alternative device, a first and a second scanning means (1) are provided which are positioned at a distance from one another and the monitored surfaces or monitored spaces of which at least partially overlap. The invention also relates to a method for monitoring surfaces or spaces, in which method the received reflected signals are transmitted into display points or display surfaces and displayed in a display means (27, 47) in a two-dimensional image corresponding to the characteristics of the detected object.

Description

title

Device and method for monitoring areas or rooms

description

The present invention relates to a device for monitoring areas or spaces for detecting objects located on a monitored area or in a monitored space or objects entering the monitored area or space, according to claims 1 and 18. The invention relates also a method for monitoring areas or spaces, by which objects located on a monitored area or in a monitored space or objects entering the monitored area or space are detected, according to claim 13.

To protect against unauthorized entry into residential or business premises, surveillance systems are known which can trigger alarm functions and are therefore intended to act as a deterrent. In most cases, either camera surveillance systems, light barrier systems or scanning systems with reflected beams are used.

EP 0029 827 B1 discloses a device and a method for room surveillance using pulsed directional radiation. In this case, light pulses from a laser light source are emitted in a time sequence in different directions in a site to be monitored at a defined time and in a respectively defined azimuth angle and elevation angle and reflected on an object located in the site. With the help of signal data of the reflected radiation, which are detected by a radiation receiver, illegal Intrusion can be detected and corresponding warnings can be delivered and, if necessary, defensive measures can be initiated.

Proceeding from this method and this device for room monitoring, the object of the present invention is to specify a device and a method for monitoring areas or rooms, through which an improved representation of the monitored area or the monitored room on a display device and a simple selection of parts of this area or this room are guaranteed to carry out special measures. In addition, a complete monitoring is also aimed at in built-up areas.

The above object is achieved by a device according to the features of claim 1.

The device according to the invention for monitoring areas or rooms for detecting objects located on a monitored area or in a monitored room or objects entering the monitored area or the monitored room comprises at least one scanning device, a transmitting device for transmitting measurement signals and a Includes receiving device for receiving signals reflected from the detected object. The monitored area or the monitored space can be displayed in a display device, in particular on a screen, of a data processing system in a two-dimensional image. A partial area of the monitored area or a partial space of the monitored space can be selected with the aid of the data processing system, wherein a predefined action and/or a predefined monitoring function can be assigned to the partial area or the partial space. With the help of the representation, in particular by a true-to-scale image on the display device of the data processing system, the monitored area or monitored space can be completely surveyed and partial areas or sub-spaces, the monitoring of which is intended to lead to an action and/or a monitoring function, resulting in the detection of a special feature, can be selected or defined more precisely. It is possible to define these sub-areas or sub-spaces with an accuracy of a few centimetres.

In particular, objects close to the ground can be detected with the scanning device, which can have a laser scanning device. With the help of such a ground-level scanning, those penetrating objects whose penetration can be or can become critical for the monitored area or the monitored space can be detected with as little effort as possible.

The data processing system is or includes in particular a computer or a computer-like device, which can also be a mobile device such as a smartphone, tablet computer or notebook. While such a mobile device can be particularly helpful for monitoring at any time, a workstation with a large screen, for example, has advantages when defining partial areas or partial rooms because of the better overview and especially with higher resolution. In this respect, it is advisable to choose a particularly suitable data processing device for each purpose.

The two-dimensional image displayed or capable of being displayed in the display device can be a two-dimensional floor plan or it can have one. Such a floor plan can be transferred from building plans and/or cadastral data, for example.

The assigned or assignable action and/or

Monitoring function is in particular from a predefined

Configuration menu selectable in one of the Data processing system executed or executable program may be included or accessed by the program.

In particular, at least one object to be monitored is arranged on the monitored area or in the monitored space, which object can be displayed or is displayed in the two-dimensional image in the display device, advantageously with all its contours and outlines. It is advantageous if the object to be monitored is reproduced true to scale in the two-dimensional image. Such an object can be a house whose conceivable access or intrusion openings, such as doors or windows, may require special surveillance. The doors or windows themselves can also be or will be defined as objects to be monitored. As a further example, a delimitation device, such as a fence, for example, over which an unauthorized intrusion can be surmounted or crossed, is conceivable as an object to be monitored.

However, the object to be monitored does not have to be permanently connected to the monitored area or the monitored room in accordance with the aforementioned examples. Rather, moving objects, such as a motor vehicle, can also be targets of a monitoring process. Furthermore, "monitoring" does not only mean the observation of desired objects on the monitored area or in the monitored space, rather the term "detected object" also includes an undesired object, such as a possibly malicious intruder, a possibly desired one and possibly lost visitors on a company site, or even just an incorrectly placed pallet.

An embodiment of the invention provides that the selected partial area to be monitored or the selected one to be monitored Partial space, or possibly the object to be monitored, one

Zone can be assigned. Through this zone is at least one of the

Actions

alarm by associated devices or facilities;

activation or deactivation of at least one further zone;

Alarm on a detected object, especially one in an unusual condition or at an unusual angle

location object;

Display of the dwell time of an object by characteristic

Representation, in particular color representation can be triggered.

The action selected or to be selected can be from one of the

events

Detection of a movement of an object, in particular detection of the direction of movement and/or the speed and/or the acceleration;

Recognition of the number of objects that are assigned or can be assigned in particular to a defined group of objects;

detecting the size of an object;

detection of an object state;

Detection of absences, especially unplanned ones

absence of an object;

Detection may be dependent on the duration of the presence of an object.

Also a dependency on a time of day and/or on a

The day of the week can be decisive for the assignment to the zone or the setting of a zone. Multiple periods can be considered

Group can be combined in order not to link all the individual time periods individually for the events. The events mentioned above can also be made dependent on the object type (animal, human, vehicle,...).

According to this embodiment, zones can be used to define partial areas of the monitored area or the monitored room that are monitored and actions, in particular one of the aforementioned actions, can be defined that can be carried out when an event occurs, in particular one of the aforementioned events.

The following examples can be triggering events: an object/e.g. B. person enters, moves in a zone classified as a safety area or leaves it, the movement speed of an object, for example a person, the number of people in a zone, the number of people moving in the direction of movement from location A to location B, can be significant frequenting certain zones detectable

opening a door or window of a monitored object missing objects: theft of e.g. B. vehicles, picked up or newly parked pallets.

Examples of actions that can be triggered are in particular: Alarm by: a siren or other signal generator, for example sound or light signals, push messages, SMS messages, calls, etc. Evaluations of certain events, e.g. B. for statistics, in particular: which zones or areas are used the most, in this case the display device can mark the different frequentations of the different zones or areas by different colors. Another possibility can be realized in that an event in a zone can "create" a new or additional zone, ie the new or additional zone does not have to be defined by the user of the device according to the invention. Rather, this zone is defined by the device itself, in particular by appropriate programming, can be set up automatically and automatically. This can be, for example, a pallet newly parked in a monitored zone or newly parked vehicles, which define a new zone. The newly parked pallet can be a newly created zone, the one action is assigned, namely monitoring the pallet and triggering an alarm in the event of theft Preferably, a zone can be defined according to calendar days and/or times.

A special embodiment is characterized by a first zone and a second zone, to which different priorities can be assigned. Additionally or alternatively, a partial area to be monitored or a partial space to be monitored can be assigned to at least one first and one second zone, which have different settings. In particular, at least one action and/or monitoring function that differs from the second zone is assigned to the first zone. This also allows dependencies to be defined. For example, a surveillance zone is only activated when a main gate is closed, which can mean that a company with a surveillance site has closed down.

Measurement signals can preferably be emitted by the transmitting device at defined time intervals in changing directions, which can include a preferred direction range. The transmission device is preferably designed with all-round radiation, so that the horizontal portion covers in particular an angular range of 360°. In this embodiment the received reflected signals can be transmitted to display points or display areas and can be displayed in the display device in the two-dimensional image, in particular the two-dimensional floor plan, in accordance with the properties of the detected object. These object properties can be or include the position and/or the course of movement and/or the outline of the object.

In particular, the detected reflected signals can be assigned to one or more defined object groups. In this case, a group of objects can be transferred to an object representation for displaying the detected object in the two-dimensional image and/or can be assigned to at least one action and/or one monitoring function. With each measurement result, an attempt can be made to divide this into a defined object. For example, an algorithm of an evaluation program tries to classify recorded measurement results or objects into walls, people, animals, vehicles, pallets, etc. Environmental influences can also be helpful in the classification, for example to distinguish solid and rigid objects from flexible ones. Objects moving, for example oscillating, around a center point or a middle position can be defined as leaf movements in the wind, while a wall is generally stationary in all weathers.

According to a special embodiment, the detected reflected signal is assigned to or divided into objects that are permanently present or objects that occur from time to time. Permanent objects are part of the monitored area or the monitored space. In particular, they include the object to be monitored and/or can be assigned or can be assigned to an action and/or a monitoring function. Examples of this are the object types: door, gate, roller shutter, window, etc. Here the system can recognize whether for For example, a roller shutter or a door is open or closed, i.e. recognizing a status/event of the object. An action can be linked to the state/event of the object, such as switching on a light.

On the other hand, objects that appear from time to time are particularly mobile. However, such objects that only appear occasionally can also be made the subject of a zone and/or an action or monitoring function, but this action or monitoring function usually differs from that of a permanent object. For example, when a motor vehicle is detected, a zone around the parked car can be automatically activated and assigned an action when an event occurs.

A particular embodiment of the device according to the invention provides that each object within the measurements can be evaluated for stability using a point system or the like. The more points an object receives, for example, the more sluggish a reaction to changes in the measurement result can be. An example of this is a motor vehicle that is parked in front of a wall, with the result that the parts of the wall covered by the motor vehicle can no longer be detected by the scanning device. Despite this, the wall is still displayed in the display device. On the other hand, moved or moving objects with a lower rating, in particular a lower score, disappear from the display device, in particular from the floor plan representation, in a significantly shorter time.

According to a further embodiment, automatic object marking of different object types is provided, taking into account the stability of the measuring points or taking into account movement patterns. For example are The following object types are provided: New measuring point, measuring point that has been recognized for a long time but is not stable, wall-like measuring point, wall or very stable measuring point, hedge, human, animal, vehicle, etc.. Colors, tags, Pictograms, symbols, hatching or the like provided. For example, doors, gates and windows can be graphically displayed in the aerial photograph. In addition to the possibility of an automatic assignment of the object types, a manual assignment of the object types to the measuring points is also possible or provided according to one embodiment. Vehicles have a very distinctive shape. Likewise, pedestrians walk very differently from animals. After execution, these recorded objects are either assigned manually or automatically from a list/database of stored object types. If such a database is part of the device, objects that have already been classified are stored there. According to another variant, the device has or is connected to a neural network, so that the object association improves over time.

In principle, after a learning phase, the system recognizes walls, people, cars, animals ... independently. In addition, object types: gate, door... can also be marked manually in the 2D floor plan as a gate or door. The system would thus quickly recognize an open door. Unlike an undefined door, it would take several minutes or hours for the system to render/tag the "open door" in the 2D floor plan.

The system constantly monitors all objects. Each object is given a unique ID and is cataloged in the system. The following parameters are taken into account: object size (area), object diameter, object shape, object speed, object dwell time within the zone, object dwell time in the entire detection area, object activity / mobility (direction of movement, acceleration), movement path within the detection area.

With these parameters and possibly other details, the object is also divided into an object type: wall, human, animal (large), animal (small), car, car with trailer, bicycle, stroller. These parameters can also be defined in a defined zone as "triggers". Thus, a zone does not necessarily have to be set to "activated" if only a small object enters the zone. This setting can be made in the zone. Thus, a zone can only react to a car or an object of a certain size or shape.

According to a further embodiment, the device stores unusual objects in a history log. According to a variant of the invention, unusual routes, events or objects are also presented to the user. The system should independently recognize these "irregular events".

The received reflected signals and/or their transmission to display points or display areas can preferably be assigned to a site plan or an aerial photograph of the area to be monitored or the room to be monitored. It is particularly advantageous if the site plan or the aerial photograph can be or is superimposed on the two-dimensional image. This makes it easier for the user or observer of the display device to orientate himself in the representation of the monitored area or the monitored room.

A partial area to be monitored or a partial space to be monitored, in particular the zone to which the partial area or partial space is assigned, can be assigned by selecting an Area can be defined in the two-dimensional image on the display device. Preferably, the selection or the definition is made by a marking, in particular by a colored marking, on the display device, so that an emphasis is also achieved in this way. By overlaying the floor plan with an aerial photograph or a particularly detailed site plan, the partial area to be monitored or the partial space to be monitored can be defined very precisely, in particular with a precision of one to six centimetres.

A particularly user-friendly embodiment of the device according to the invention provides that the partial area to be monitored or the partial space to be monitored, in particular the zone, can be defined with the aid of graphic editing tools via an input device. These tools can be virtual. Any known, conventional type, such as a computer mouse or an input pen, is conceivable as an input device. The input device can interact with a screen representation in the form of a virtual brush to create or grow a zone, or a virtual eraser to shrink or erase a defined or sized zone.

Provision can also be made for at least one first scanning device and one second scanning device to be included, and the display points or display areas formed from received signals from the first scanning device compared to the display points or display areas formed from received signals from the second scanning device. can be represented differently. As an alternative, a different identifier or coding, in particular color coding, is also possible. In this respect, an assignment of the display points or display areas to the respective Scanner, ie a display of which scanner which display points or areas were generated recognizable. It is thus possible to determine, for example, which scanning device produces or has produced a specific movement track of a moving object in the display device.

In order to conceal the function of the device as a monitoring means, the scanning device can be installed in a housing which is used in an ordinary device or device, which device or device is common at the place of use but serves a different use than that of a monitoring device. Since company premises or a private living area are essential areas of application for the device according to the invention, its installation in a housing of a lamp device, in particular a path or terrace lighting device, is particularly favorable and unobtrusive.

The object mentioned in the introduction is also achieved by a method according to the features of claim 13.

This method according to the invention for monitoring areas or rooms, by which objects located on a monitored area or in a monitored room or objects entering the monitored area or in the monitored room are detected, provides that a transmitting device of a scanning device measuring signals in time-defined Emits distances in changing directions and a receiving device receives at least one reflected from a detected object signal. In this case, the transmitting device emits measurement signals whose horizontal component covers a predetermined angular range, which is in particular 360°, so that all-round monitoring by the scanning device is possible is enabled. The received reflected signals are transferred to display points or display areas and displayed in a display device in a two-dimensional image according to the characteristics of the detected object. This method according to the invention can be operated in particular with or in one of the devices described above.

The display device can be part of a data processing device with which the method according to the invention can be operated or which supports the method according to the invention. Such a data processing system is or includes in particular a computer or a computer-like device, which can also be a mobile device such as a smartphone, a tablet computer or a notebook. The display device is in particular a screen of the data processing device. In particular, objects close to the ground can be detected with the scanning device, which can have a laser scanning device.

The two-dimensional image displayed or capable of being displayed in the display device can be or can have a two-dimensional floor plan of the monitored site.

Preferably, the position and/or the course of movement of the detected object and/or its silhouette, ie its outline, is displayed.

The method according to the invention can provide that a signal received by the receiving device is assigned to an object representation or a group of objects. Received signal data are preferably one

Assigned coordinate system, in particular a Cartesian coordinate system or a polar coordinate system, or a vector data model and transmitted to a central processing unit. It is advantageous if repetitive data is only transmitted once. These measures can help ensure that the amount of data transmitted remains within manageable limits, which on the one hand cannot contribute to a cost-effective system, but on the other hand allows the measurement speed and thus better traceability of movement tracks of moving objects.

It can also be provided that signal data of the reflected signal from a first scanning device and from a second scanning device are transmitted to the central processing unit and, in order to keep the transmitted data volume as low as possible, overlapping signal data of the first and second scanning devices are only transmitted by one of these two Scanners are transferred. The scanning device which is arranged closest to the detected object or which detects a movement of the detected object more clearly is used for this purpose.

The transmitted data volume can also be kept low if objects are suppressed during transmission that only occur as a result of special environmental conditions, in particular special weather conditions or influences. In the same way, movements of an otherwise stationary object, for example a tree, which only occur as a result of the aforementioned special influences or conditions, ie in particular movements caused by the wind, are advantageously also suppressed. The above object is also achieved by a device according to the features of claim 18.

Such a device for monitoring areas or rooms for detecting objects located on a monitored area or in a monitored room or objects entering the monitored area or in the monitored room according to the invention has at least one scanning device which has a transmitting device for sending a Measurement signal and a receiving device for receiving a reflected signal from the detected object comprises on. Measuring signals can be radiated from the transmitting device at defined time intervals in changing directions, the horizontal portion of which covers a defined angular range, which is in particular 360°. At least a first and a second scanning device are provided, which are arranged at a distance from one another and whose monitored areas or whose monitored spaces at least partially overlap. In this way, the monitoring area can be increased. In addition, with a suitable placement of a second scanning device, areas can be "seen" that lie in a shadow area of the first scanning device. It is also possible to capture objects from all sides with several scanning devices. With the scanning device, which can have a laser scanning device, are in particular objects close to the ground can be detected.

The inventive device can be a central

Having arithmetic unit with which the at least first

Scanner and second scanner are connected. The integration into a common network of the central

Arithmetic unit and the two scanning devices is cheap.

Finally, a particularly preferred embodiment of the invention provides that the first and the second scanning device can be aligned with one another. For this purpose, an automatically running alignment mode is preferably used. The alignment of the two scanning devices with respect to each other takes place in particular by scanning a common reference point or reference object by each of the two scanning devices. An object has proven to be advantageous which is cross-shaped in horizontal cross-section or, in general, a reference object with straight surfaces and a 90-degree angle, with the help of which several scanning devices/lasers, which "see" the cross, can be aligned very easily. This is done with It can be done automatically or manually with the help of an algorithm. Additionally or alternatively, the two scanning devices can be aligned with one another by mutual scanning. The reference object preferably also has markings that can be easily recognized from the air. According to one embodiment, the reference object has one of the A circle with a cross is visible from a bird's-eye view, i.e. formed in the horizontal plane.An aerial photograph of the area to be monitored can then be automatically or manually overlaid with the values of the scanning device(s) with the aid of an algorithm.

The location of the scanning device in the 2D floor plan is preferably represented by a symbol, for example by a circle. The temperature and a time stamp of the last feedback are more preferably also displayed with the symbol. It is preferably possible to shift the representation of the measured values of the individual scanning device(s) in the X and Y direction, as well as to rotate. So that a manual correction is possible. The measurement results are preferably displayed in a different color or a different pattern depending on the respective scanning device. If you do without an automatic setting and choose manual alignment, you only have to adjust the X and Y position of the scanning device/laser according to the position on the aerial photo. All changes are made in real time. Thus, the floor plan changes immediately. It is even easier if a reference object is used as described above. Then you only have to correct the X and Y position of the scanning devices/lasers to such an extent that the measuring points of the respective scanning devices (e.g. different colors) are exactly on the reference object.

The features described and other features are in particular also the subject matter of the appended patent claims. Furthermore, it is pointed out that all features that are presented as device features in connection with one of the devices described should also be understood as process features in connection with a method that can be used in the respective device. The same applies to process features that can also be associated as device features with one of the devices described.

The invention is explained in more detail below with reference to the drawings of an exemplary embodiment. show:

1 shows a schematic representation of a rotating laser scanner in side view;

FIG. 2 shows a practical embodiment of the laser scanner according to FIG. 1 installed at its place of use; FIG. 3 shows a monitoring device with two laser scanners spaced apart from one another according to FIG. 2 at its place of use;

4 shows a screen display of a monitored site according to an aerial photograph;

FIG. 5 shows the screen display similar to FIG. 4 with a first selection window; FIG.

FIG. 6 shows the screen display according to FIG. 5 with a second selection window; FIG.

FIG. 7 shows the screen display according to FIG. 4 with selected zones to be monitored marked;

8 shows a display representation on a smartphone with a displayed movement track;

9 shows a principle representation of the programmability of a first action; and

10 shows a principle representation of the programmability of a second action.

1 shows a basic representation of a laser scanner

1, which is part of a scanning device

Object protection device is used. With the help of this

Object protection device is a surveillance of a site, such as a company premises or of a private property, possibly with a residential building with a surrounding garden.

The laser scanner 1 according to FIG. 1 is a 360° scanner which, as indicated at 3, can be rotated about its vertical rotary foot 5. In order to achieve particularly frequent scanning for detecting faster movements of an object on the monitored area, the laser scanner 1 runs through a full circle several times per minute. During its rotary movement, a laser transmitter 7, which rests on a platform 9 that is rotated along with it, emits a measurement signal 11 in a radial, horizontal direction at discrete time intervals in the horizontal direction into the monitored area. If the emitted measurement signal hits an object in the area, the measurement signal is at least partially reflected and thus forms a reflected signal which, after a corresponding transit time, reaches the laser scanner 1 running in the opposite direction to the measurement signal. This signal propagation time depends on the distance of the detected object from the laser scanner 1. In addition, the direction of the transmitted measurement signal can be detected with the help of angle sensors, not shown, so that the position of the detected object can be determined with known parameters of direction and transit time. A receiving means, for example an infrared sensor 13, is arranged on the rotating platform 9 to detect the reflected signal.

So that the laser scanner 1 shown in the basic illustration according to FIG. 1 is protected from environmental influences on the one hand and is not conspicuous in the monitored area on the other hand, for example in order to work covertly, the laser scanner 1 is in a housing for path lighting 15 close to the ground, which is also used as patio lighting can be installed. This path lighting 15 is shown in FIG. 2 on the edge of a path 17, the belongs to the monitored premises. The path lighting 15 therefore has the additional task of providing a housing and a concealed working environment for the laser scanner 1 in addition to its usual task, namely to ensure at least sufficient lighting conditions on the path 17 at dark times of the day. The transparent or semi-transparent window 19 of the path lighting 15 used for light emission is particularly well suited for the unhindered transmission of the measurement signals and reception of the reflected signals. The path lighting 15 or the laser scanner 1 built into it has a heater (not shown) to ensure proper functioning even in the winter months by operating temperatures that remain approximately the same or are at least not too low, for example to prevent the window 19 from fogging up. A cover 21 prevents solar radiation, dust formation and water droplets, which could possibly falsify measurement results. In addition to a suitable seal, a drip guard (not shown) with a drip edge, which can be attached circumferentially and downwards, for example, on the edge of the circular cover, also prevents water running into the middle of the cover with the risk of penetrating into the interior of the path lighting 15. This also effectively prevents water stains on the laser's optics.

Finally, the cover 21 also includes a surface that has a structure similar to a solar cell and is therefore similar to that of a solar panel, which means that another measure is taken to prevent the function of the path lighting 15 as a mount for a laser scanner 1 from being recognized.

Fig. 3 shows the path lighting 15 at a different location on the same site as in Fig. 2. In order to obtain a larger surveillance area and, in particular, also to cover an area of the curved path 17 for a first laser scanner 1 integrated in a first path lighting 15 to also be able to monitor, a second laser scanner 1 integrated in a second path lighting 15 ′ is installed at a distance from the first path lighting 15 . FIG. 3 shows the monitored area in the dark in the evening or at night, when the path lights 15, 15' fulfill their additional task of providing light. In addition, FIG. 3 also shows motor vehicles 23 parked on the site to be monitored, which can also be targets of the monitoring, and any unauthorized removal of a motor vehicle 23 can lead to an alarm signal, for example.

As can also be seen from FIG. 3, not only are measurement signals sent in all directions of a 360° rotation, but 360° LED lighting is also provided. In addition, this LED lighting can also be used to display status displays of a control and processing unit of the laser scanner 1, such as starting or booting, connection display, alarm signals, etc. Each of the two laser scanners 1 integrated in the path lights 15, 15' has such a control and processing unit. These are not only connected to each other via a wireless network, but also to a central processing unit for the purpose of data exchange. For this purpose, the path lights have a unique hardware ID, a unique IP address in the network and, if necessary, parameters to get the scale for different device types on the same level. In general, of course, a wired network structure is also possible, but it is much more complex due to concealed cable routing. The central processing unit receives the signal data transmitted by the two (or more) laser scanners 1 and evaluates the information received with regard to detected objects in the monitored area. In order to keep the amount of data to be transmitted as small as possible, the lasers only send signal data that is repeated within a defined period of time. Overlapping signal data from a number of laser scanners 1, which scan the same object, for example, but possibly from two different directions, are also calculated out before transmission and are therefore not transmitted. Only the signal information from the laser scanner 1 that is closest to the detected object is advantageously used here. Alternatively, possibly also cumulatively, the laser scanner 1 can also be used for the transmission, which best recognizes this movement in the event of a movement of the detected object. In order to be able to ensure the transmission of only the most suitable signal in each case, the control and processing units of the two laser scanners 1 are connected to one another by means of appropriate evaluation software.

The laser scanners 1 according to FIG. 3 are monitoring devices with scanning close to the ground, since these laser scanners 1 are installed in path lighting 15, 15' close to the ground. In addition, there is only one scan in the horizontal direction, so it is only scanned over an area. However, this is sufficient, since in this way those intruders who can be critical for the terrain or objects on it are detected.

4 shows a screen display of a monitored site, in the present example a residential and garden property with a residential building 25, in a top view. generated. Instead of the aerial photograph, a construction plan drawing or a cadastral representation can also be used, but an aerial photograph is usually more up-to-date and more realistic. On the aerial photograph are also a garage 29 adjoining the house 25 and motor vehicles 23 parked at the house can be seen.

Monitoring zones can now be set up with the aid of the control and computing unit belonging to the screen 27, preferably a computer (not shown). In the example according to FIG. 4, a property boundary in the form of a fence 31 was marked by the user or the person setting up the monitoring system. An unauthorized overcoming of this fence 31 can possibly be an alarm-triggering event. Furthermore, a door 33 and two windows 35, which point to a terrace 37, are marked as possible entry openings into the residential building 25 and, in particular, are defined as zones.

Instead of the aforementioned objects or zones 31-35 being marked by the user, these objects can also be the result of scanning by at least one laser scanner 1 and subsequent assessment or assignment by the associated control and processing unit or the central computer or computer.

FIG. 5 shows the screen display analogous to FIG. 4 with the same monitored area. The screen settings shown in this FIG. A selection field 41 present in the selection window 39 can be used, for example, to set a color assigned to this laser scanner 1, with which the area that can be detected by this device 1, in particular its border 43, is identified in a color-coded manner. In addition, with the help of the "Position x/y" selection field, the location of the scanning direction can be adjusted and, for example, moved to the location of the scanning direction that can be seen in the photo. Preferably, the one correlating with the samples Position that can be moved using the selection field, marked by a point, for example, so that this point can be moved over the location recognizable on the photo. With the help of the "Alignment (degrees)" selection field, the scanned values of the scanning device can be rotated around the location of the scanning device in such a way that the displayed markings (e.g. house corner or the reference object mentioned above) lie on the corresponding positions recognizable in the photo. With help the "Scale" selection field can also be used to ensure that the displayed positions measured by the scanning device have the same scale as the photo.

6 shows a further step in the process of setting up the monitoring system. 6 shows the same view of the terrain as FIG. 5, but with a next selection window 39' for defining a zone 45. In the example shown, a selection field 41' of this selection window 39' was used to color code the zone to be defined 45 set. Then, with the help of virtual drawing tools known from standard programs such as Microsoft® Paint, for example a virtual brush, which can be controlled with the pointer of the PC mouse and preferably adjusted to different sizes, that area was entered in the floor plan representation that represented the area of the zone should represent. A further selection field 41'' makes it possible to give the zone 45 a name. Zones that have already been defined can preferably be changed, for example the size can be changed, which can be made possible by a virtual eraser.

The view of the site to be monitored is also shown in FIG. 7, but again with the zoom setting according to FIG Fence 31 several drawn and thus defined zones 45a-45e, which are scanned by several laser scanners 1 and which are assigned actions or monitoring functions that are not described further here.

Finally, FIG. 8 shows a display 47 of a smartphone provided for monitoring and possibly for receiving an alarm. Before or during the display of the display according to FIG. 8, the movement of an unspecified object, possibly an inhabitant or a desired or uninvited visitor to the premises, took place or takes place, which movement is indicated by a movement trace in the form of a comet tail display at 49. Here, the darkest track point represents the current position of the moving object and earlier positions already left behind in the course of the movement gradually fade. Based on the information obtained with this display representation, the viewer can now decide whether there is an alarm condition and whether an action must be triggered.

FIG. 9 shows a basic representation of the programmability of a first action, in which the light in the entrance area of a house is switched on. First, the operator selects or creates a specific action, here the "Light on" action. He has the option of activating or deactivating the status of this action and specifying the name of the action. This is followed by linking conditions using Boolean operators, which determine when a certain action should be performed. In this case, to turn on the light in the entryway. As shown here, the light is turned on when the value of the zone "Entrance" is 1 and if the last update was more than 5 seconds ago. FIG. 10 shows the determination of a further action, namely the “Alarm 1” action. The action sets the alarm device, emergency call in motion under the condition that the value of the “Alarm zone” zone is 1. However, the alarm is only active between 11:00 p.m. and 4:00 a.m.

The "entrance area" and "alarm zone" zones mentioned in FIGS. 9 and 10 were previously marked/defined on the screen with the aid of a virtual brush.

Reference List

1 laser scanner

3 rotation arrow

5 swivel base

7 laser transmitters

9 platform

11 measurement signal

13 infrared sensor

15, 15' path lighting

17 way

19 windows

21 cover

23 motor vehicle

25 apartment building

27 screen

29 garage

31 fence

33 door

35 windows

37 terrace

39, 39' selection window

41, 41',41'' selection box

43 border

45, 45a-45e zones

47 displays

49 movement track

Claims

patent claims

1. Device for monitoring areas or rooms for detecting objects located on a monitored area or in a monitored room or objects entering the monitored area or room, in particular objects close to the ground, with at least one scanning device which has a transmitting device ( 7) for sending measurement signals and a receiving device (13) for receiving signals reflected from the detected object, the scanning device having in particular a laser scanning device (1), the monitored area or the monitored space being displayed in a display device (27, 47), can be displayed in particular on a screen, a data processing system, in particular a computer or a computer-like device, in a two-dimensional image, in particular a two-dimensional floor plan, and with the aid of the data processing system a partial area (45, 45a-45e) of the monitored area or a part aum of the monitored room can be selected, to which a predefined action and/or a predefined monitoring function can be assigned, wherein the action and/or the monitoring function can be selected in particular from a predefined configuration menu.

2. Device according to claim 1, characterized in that at least one object to be monitored is arranged on the monitored area or in the monitored space, which object can be displayed or is displayed in the two-dimensional image in the display device (27, 47), in particular true to scale.

3. Device according to claim 1 or 2, characterized in that the selected partial area to be monitored (45, 45a-45e) or the selected partial space to be monitored, or in particular the object to be monitored, can be assigned to a zone (45, 45a-45e). , through at least one of the actions

alarm by associated devices or facilities; activating or deactivating at least one further zone (45, 45a-45e);

Alert on a detected object, especially an object in an unusual condition or in an unusual location;

Display of the dwell time of an object by means of a characteristic representation, in particular a colored representation, in particular as a function of one of the events Recognizing a movement of an object, in particular recognizing the direction of movement and/or the speed and/or the acceleration;

Recognition of the number of objects that are assigned or can be assigned in particular to a defined group of objects; detecting the size of an object;

detection of an object state;

Detection of the absence, in particular the unplanned absence, of an object;

detection of the duration of the presence of an object; can be triggered, the assignment to the zone (45, 45a-45e) or the setting of a zone (45, 45a-45e) being dependent in particular on a time of day and/or a day of the week.

4. Device according to claim 3, characterized in that a first zone (45, 45a-45e) and a second zone (45, 45a-45e) can be assigned different priorities and/or that a partial area to be monitored or a partial space to be monitored can be assigned to at least one first and one second zone (45, 45a-45e), which first and second zones (45, 45a-45e) have different settings, in particular different actions and / or monitoring functions are assigned.

5. Device according to one of Claims 1 to 4, characterized in that measurement signals can be emitted by the transmitting device (7) at defined time intervals in changing directions, the horizontal component of which covers in particular an angular range of 360°, the received reflected signals in Display points or display areas can be transmitted and displayed in the display device (27, 47) in the two-dimensional image, in particular the two-dimensional floor plan, according to the properties of the detected object, in particular its position and/or its course of movement and/or its outline.

6. Device according to claim 5, characterized in that the detected reflected signals can be assigned to one or more defined groups of objects, in particular a group of objects

- Can be transferred to an object representation for displaying the detected object in the two-dimensional image and/or

- Can be assigned to at least one action and/or one monitoring function.

7. Device according to claim 6, characterized by an assignment a. into permanent objects (25, 29, 33, 35, 37), the

Are part of the monitored area or the monitored room and in particular

- encompass the object to be monitored and/or

- are assigned or assignable to an action and/or a monitoring function, or b. into objects (23) that occur from time to time, in particular moving objects.

8. Device according to one of Claims 5 to 7, characterized in that the received reflected signals and/or the display points or display areas can be assigned to a site plan or an aerial view of the monitored area or the monitored space, with the site plan or the aerial view in particular showing the two-dimensional Figure can be superimposed.

9. Device according to one of claims 1 to 8, characterized in that a partial area to be monitored (45, 45a-45e) or a partial space to be monitored, in particular the zone, by selecting an associated area in the two-dimensional image, preferably by a marking , in particular by a colored marking on the display device (27, 47) can be defined.

10. Device according to claim 9, characterized in that the partial area (45, 45a-45e) to be monitored or the partial space to be monitored, in particular the zone, can be defined with the aid of graphics processing, in particular virtual, aids via an input device, in particular a computer mouse is.

11. Device according to one of claims 1 to 10, characterized in that at least a first scanning device (1) and a second scanning device (1) are included and the display points or display areas, which are formed from received signals of the first scanning device (1), can be displayed differently in comparison to the display points or display areas, which are formed from received signals of the second scanning device (1), or have a different identification or coding, in particular color coding.

12. Device according to one of claims 1 to 11, characterized in that the scanning device (1) is installed in a housing which is usually used at the site of use other than a monitoring device, preferably in a housing of a lamp device, in particular a path or Terrace lighting device (15, 15').

13. A method for monitoring areas or rooms, by which objects located on a monitored area or in a monitored room or objects entering the monitored area or the monitored room are detected, in particular executable in a device according to one of claims 1 to 12 , wherein a transmitting device (7) of a scanning device, in particular a laser scanning device

(1), emits measurement signals at defined time intervals in changing directions and a receiving device (13) receives at least one signal reflected by a detected object, the transmitting device (7) emitting measurement signals whose horizontal component covers an angular range of, in particular, 360° , and wherein the received reflected signals are transmitted into display points or display areas and in a Display device, in particular on a screen (27, 47), in a two-dimensional image, in particular a two-dimensional floor plan, corresponding to the properties of the detected object, in particular its position and/or its course of movement and/or its outlines.

14. The method as claimed in claim 13, characterized in that a signal received by the receiving device (13) is assigned to an object representation or a group of objects.

15. The method according to claim 13 or 14, characterized in that received signal data are assigned to a coordinate system, in particular a Cartesian coordinate system or a polar coordinate system, or a vector data model and transmitted to a central processing unit, with preferably repeated data being transmitted only once.

16. The method according to claim 15, characterized in that signal data of the reflected signal from a first scanning device (1) and from a second scanning device (1) are transmitted to the central processing unit, with overlapping signal data of the first and second scanning devices (1) only through one of the first and second scanning devices (1), in particular by the scanning device (1) that is arranged closest to the detected object or by the scanning device (1) that detects a movement of the detected object more clearly.

17. The method according to any one of claims 13 to 16, characterized in that caused by an environmental influence, in particular a weather influence, occurrence and / or Movements caused by an object are suppressed during transmission.

18. Device for monitoring areas or rooms for

Detection of objects located on a monitored area or in a monitored space or entering into the monitored area or space

Objects, in particular objects close to the ground, with at least one scanning device having a transmitting device (7) for

Transmission of a measurement signal and a receiving device (13) for receiving a reflected from the detected object

Signal includes, wherein the scanning device has in particular a laser scanning device (1), wherein of the

Transmission device (7) measurement signals in time-defined

Distances can be radiated in changing directions, the horizontal portion of which in particular covers an angular range of 360°, the device in particular according to one of

Claims 1 to 12 and/or operable with a method according to one of Claims 13 to 17, and wherein at least a first and a second scanning device (1) are provided, which are arranged at a distance from one another and their monitored areas or their monitored Rooms at least partially overlap.

19. Device according to claim 18, characterized in that a central processing unit is included, with which the at least first scanning device (1) and second

Scanning device (1), in particular via a network, are connected.

20. Device according to claim 18 or 19, characterized in that the first and the second scanning device (1), preferably by an automatically running

Alignment mode, are aligned to each other, in particular by respective scanning of a common reference point or reference object and/or by mutual scanning.