Security System

Abstract

The application relates to a security system (1) for locating and identifying a person (2) or an object (8). The security system comprises: a control and evaluation unit (3); at least one radio positioning system (4); at least one identification sensor (7) for identifying a person or an object, wherein: a mark is arranged on the person or the object, the radio positioning system is provided with a radio station (5), at least one radio transponder (6) is arranged on the person or the object, position data of the person or the object can be determined by the radio positioning system, the position data can be transmitted from the radio station of the radio positioning system to the control and evaluation unit, identification data can be determined by the identification sensor based on the mark on the person or the object, the identification data can be transmitted from the identification sensor to the control and evaluation unit, and the control and evaluation unit is configured to compare the position data with the identification data and to form verified personal data or object data in the event of a match.

Description

Technical Field

[0001] The present invention relates to a security system for locating and identifying a person or an object, and a method having a security system for locating and identifying a person or an object. Background Art

[0002] Currently, sensor technology for functional safety is at a level where basic physical features of the environment, such as geometric information (e.g., distance, length, or presence of an object), can be reliably detected and used in simple safety functions. However, high-quality information or derived meanings, such as information about what kind of object it is, cannot generally be reliably determined by sensors and therefore cannot be used in safety technology.

[0003] In this sense, information about whether an object is a person or not is of particular interest for high-quality safety functions. This type of safe object recognition has not been possible to date, but is extremely important for situation-dependent machine control. Object classification is generally already a very complex method, since image data are usually used for this purpose, which then has to be processed very complexly. This usually results in expensive sensors and often considerable delay times.

[0004] Photoelectric safety sensors, such as laser scanners or light barriers, detect the presence of objects or people very reliably. They are widely used in hazardous areas for guarding machines and enable very simple safety functions to be implemented.

[0005] When a safety-related object is detected, the machine movement is usually stopped or slowed down. In this case, it is still not taken into account what kind of object it is. This information is generally not available or applicable from a safety technical point of view.

[0006] The simple detection function of existing safety sensors allows reliable protection of hazardous areas, but generally has a negative impact on the productivity of the machine. Regardless of the category of the detected object, such as a person, object or interfering or disrupting object, a safety-related shutdown must be carried out, even if such a reaction is not necessary in certain cases.

[0007] In particular, if one can know with certainty whether a detected object is a person, a potentially dangerous machine can be controlled more specifically. Summary of the invention

[0008] The object of the present invention is to enable a functionally secure identification of persons or objects.

[0009] The object is achieved by a security system for locating and identifying persons or objects, the security system having a control and evaluation unit, at least one radio positioning system, at least one identification sensor for identifying persons or objects, wherein a mark is arranged on the person or the object, wherein the radio positioning system has a radio station, wherein at least one radio transponder is arranged on the person or the object, wherein position data of the person or the object can be determined by the radio positioning system, wherein the position data can be transmitted from the radio station of the radio positioning system to the control and evaluation unit, and identification data can be determined by the identification sensor based on the mark on the person or the object, wherein the identification data can be transmitted from the identification sensor to the control and evaluation unit, wherein the control and evaluation unit is configured to compare the position data of the radio positioning system with the identification data of the identification sensor and, in the event of a match, to form verified personal data or verified object data.

[0010] Furthermore, the object is achieved by a method having a security system for locating and identifying a person or an object, the security system having a control and evaluation unit, at least one radio positioning system, at least one identification sensor for identifying a person or an object, wherein a mark is arranged on the person or the object, wherein the radio positioning system has a radio station, wherein at least one radio transponder is arranged on the person or the object, wherein position data of the person or the object can be determined by the radio positioning system, wherein the position data can be transmitted from the radio station of the radio positioning system to the control and evaluation unit, and identification data can be determined by the identification sensor based on the mark on the person or the object, wherein the identification data can be transmitted from the identification sensor to the control and evaluation unit, wherein the control and evaluation unit is configured to compare the position data of the radio positioning system with the identification data of the identification sensor and, in the event of a match, to form verified personal data or verified object data.

[0011] The control and evaluation unit has an input, a processing unit and an output. The identification sensor or the identification sensor and the radio station are connected to the input. The control and evaluation unit can be a modular control and evaluation unit that can be programmed by software.

[0012] In particular, the outputs of the control and evaluation unit can be redundant safety outputs, for example semiconductor-controlled switching outputs, in order to safely disconnect a drive of a machine, for example.

[0013] The invention is based on the unambiguous identification of a person or an object by means of two mutually independent features. These features are the identification information determined by the identification sensor and the position determined by the radio positioning system. The position and the associated identification information are therefore determined by redundant, in particular diversified, systems.

[0014] The present invention utilizes a combination of two different sensor technologies that complement each other in terms of the task of positioning and the task of identification. The first of the two sensor technologies is a radio positioning system or a radio-based positioning system, with which the position of a radio transponder can be determined accurately to within a few centimeters. By means of the identification of the radio transponder and the reference information (Bezug) stored thereon for the object or person, the radio positioning system provides classification information in addition to the position of the object or person.

[0015] The system does not need to be developed and certified with regard to functional safety, but can be used for safety applications within the framework of already used automation or logistics functions.

[0016] Here, for example, radio positioning is based on triangulation of at least one radio transponder on a person or object. For this purpose, at least three radio stations are required that can detect the radio transponder. At the same time, the radio positioning system knows the distances between the radio stations.

[0017] Preferably, the radio positioning system is a real-time positioning system or its English equivalent RTLS (Real-Time-Locating-System). In this case, one or more radio transponders are arranged on a person or an object. A radio station receives the radio signals of the radio transponder and can thus determine its own position and thus the position of the person or object.

[0018] In this case, position data are transmitted from a radio positioning system, ie a radio station, to a control and evaluation unit.

[0019] The radio positioning system may also be a radio frequency of a wireless network (such as WLAN or Wi-Fi), for example, using the 2.4 GHz or 5 GHz frequency band with a bandwidth of 20 MHz or 40 MHz.

[0020] The radio positioning system can also be a radio frequency of a radio connection (such as Bluetooth). The radio frequencies used in this case are 2.402 GHz and 2.480 GHz. The advantage of these frequencies is that they can be operated worldwide without a license. Depending on the power used, an effective range of 0 to 100 m can be achieved. The effective range and the associated maximum power are divided into classes 1 to 3.

[0021] The second system is the identification sensor. Here, a tag or optionally a transponder is required on the person or object. For this purpose, the identification sensor has direct access to the identification information. The identification sensor thus provides information about the person or object, for example, whether the person is an authorized person with certain access authorizations, or whether the object is an authorized object or a non-authorized object, or for example what type of object it is, and for example what the size of the object is.

[0022] The two different subsystems, radio positioning system and identification sensor, complement each other very well in terms of the functional tasks of position detection and identification, so that they can be combined with each other for verification and thus for safety-related applications.

[0023] Therefore, object recognition or person recognition and verification of object position or person position can be schematically performed as follows:

[0024] Radio positioning systems determine the position of objects or persons, wherein the position of the object is determined by a radio transponder. This information is transmitted to a control and evaluation unit.

[0025] Optionally, the control and evaluation unit transmits to the identification sensor the search area in which the radiolocation system has identified a person or an object.

[0026] The identification sensor checks whether a person or an object of suitable size and possibly other authentication parameters such as shape, etc. is detected in its detection area or in its search area. The identification sensor transmits the detected data to a control and evaluation unit.

[0027] The control and evaluation unit compares the features or identification data of the person or object detected by the identification sensor with the features or contours of the person or object detected by the radiolocation system.

[0028] In this case, the position of a person or an object detected by the radio positioning system and the identification data of the person or the object detected by the identification sensor are compared with one another.

[0029] Therefore, both the identification of a person or an object and the position of a person or an object can be mutually verified via two different information channels and thus verified for applications in security technology.

[0030] According to the present invention, the tag contains identification information of a person or an object, whereby the person or the object can be unambiguously identified.

[0031] The invention enables the safe identification of persons or objects in the monitored area, thus providing the possibility to tailor the safety function specifically to the respective situation. In this way, the requirements for risk reduction can be met without affecting the productivity of the automated process.

[0032] Existing infrastructure can often be used. In industrial environments, but also in public areas, such as hospitals, radio positioning systems are used, for example, to determine the position of unmanned transport vehicles.

[0033] According to the invention, only very little computing effort is required to identify a person or an object. The sensor technology is inexpensive and often even existing infrastructure can be used. Furthermore, the identification does not cause any disadvantageous delay times, which is a great advantage for industrial safety technology. The invention can also be used advantageously for human-machine collaboration, where a person must take action in the vicinity of a hazardous site.

[0034] Advantageously, the physical operating principles of the different sensors and their strengths and weaknesses complement each other. For example, radio positioning systems are naturally immune to extraneous light due to their operating principle. In addition, radio positioning systems are not very sensitive to interfering objects such as dust, debris or mist. Furthermore, radio positioning systems can also see through non-metallic walls, so that people or objects can be identified particularly early. This allows for high-quality optimization of processes while continuously ensuring work safety.

[0035] An object can be a fixed object or a moving object. For example, an object can be transporting materials or processing materials.

[0036] In a further development of the invention, the identification sensor and the radio station are arranged stationarily or movably on a movable machine.

[0037] For example, a movable machine or a mobile machine may be an unmanned car, an unmanned vehicle or an automatic driving vehicle, an automated guided vehicle (AGV), an autonomous mobile robot (AMR), an industrial mobile robot (IMR) or a robot with a movable mechanical arm. Therefore, the movable machine has a drive and can move in different directions.

[0038] For example, the identification sensor is arranged on the front side of the vehicle to detect information from the environment. It is also possible to arrange multiple identification sensors, in particular, at the corners of the vehicle.

[0039] In this case, the control and evaluation unit is also arranged on the mobile machine and is connected to the identification sensor.

[0040] Outputs of the control and evaluation unit are connected to functional units, such as drives, brakes and / or steering gear of the movable machine.

[0041] A fixed arrangement may be an arrangement on a machine, on a conveyor path, on a corridor or the like.

[0042] In a further development of the invention, the radiolocation system is an ultra-wideband radiolocation system, in which the frequencies used are in the range of 3.1 GHz to 10.6 GHz, with the transmission energy per radio station being a maximum of 0.5 mW.

[0043] The absolute bandwidth of the ultra-wideband radiolocation system is at least 500 MHz, or the relative bandwidth is at least 20% of the center frequency.

[0044] The effective range of such a radio positioning system is, for example, 0 to 50 m. In this case, radio pulses of short duration are used to determine the position.

[0045] Therefore, the radio positioning system only transmits low-energy radio waves. The system can be used very flexibly and does not cause interference.

[0046] At least one transponder must be arranged on a person or an object, which transponder is detected by at least three fixedly arranged radio stations, the absolute positions of the radio stations and the distances between them being known.

[0047] Preferably, a plurality of, for example more than three, radio stations are arranged which monitor at least part of the movement range of persons or objects.

[0048] At least two or more transponders can also be arranged on a person or an object. If the arrangement of the transponders on a person or an object is known, the position of the person or object can thereby be identified more accurately and the orientation of the person or object when stationary can also be detected.

[0049] In a further development of the invention, the identification sensor is an RFID sensor or an RFID reader or a barcode sensor.

[0050] If an RFID reader is used, an RFID transponder is arranged on a person or an object as a tag.

[0051] The RFID reader has an antenna arrangement for communicating with the RFID transponder, wherein the RFID transponder comprises at least one coil for interacting with the antenna arrangement of the RFID reader.

[0052] RFID (Radio Frequency Identification) systems are used for transmitter / receiver systems to automatically and contactlessly identify and / or locate RFID transponders using radio waves. Typically, an RFID system initially comprises an RFID transponder (also referred to as a "tag" or "radio tag"), which comprises an antenna and is located on a person or an object. An RFID transponder typically comprises a characteristic identification data code, which can be interrogated by an RFID reader (also referred to as a "transceiver") of the RFID system via an antenna arrangement. To this end, an RFID reader comprises an antenna arrangement and a transceiver circuit (e.g., an EM4095 chip from EMMicroelectronics) for reading an identifier from an RFID transponder. In order to read an identifier from an RFID transponder, an RFID reader typically generates an alternating magnetic field in order to transmit a signal to the RFID transponder. To this end, the RFID transponder is configured to, after receiving a corresponding signal from the RFID reader, send a signal, in particular containing the identifier, as a response back to the RFID reader, which evaluates and further processes the signal using an evaluation unit.

[0053] In an RFID system, an RFID reader generates an alternating magnetic field which is not only provided for transmitting data but can also be used to provide energy for the RFID transponder.

[0054] The advantage of an RFID system is therefore that the RFID transponder does not require its own power supply and can therefore be used flexibly. The RFID transponder draws its energy from the RFID reader via radio waves or electric waves. The RFID transponder is addressed via the antenna arrangement of the RFID reader and responds to the RFID reader with the information stored in the RFID transponder. The information transmitted by the transponder of the RFID system is received by the antenna arrangement and can subsequently be evaluated in an evaluation unit. The information stored on the transponder includes at least one identifier, i.e. identification data that identifies the RFID transponder.

[0055] Since the RFID transponder is identified via radio waves, the system is very robust to environmental influences. Thus, an RFID reading system with an RFID transponder can be used in very harsh environments, such as in industrial environments, where lubricants are used and where there may be high levels of contamination, for example.

[0056] Since RFID transponders are identified via radio waves, there is no need for visual contact between the RFID reader and the RFID transponder, unlike optical solutions. Therefore, the RFID reader and the RFID transponder can be fully encapsulated to protect them from harmful environmental influences.

[0057] When the identification sensor is configured as a barcode sensor, a barcode, a strichcode, a QR code, a Data Matrix code, or the like is attached to an object or a person as a mark.

[0058] The barcode sensor is configured to read identification data of an object or a person from the barcode and transmit it to the control and evaluation unit.

[0059] In a development of the invention, at least one encoder is additionally arranged on the object in order to verify the position of the person or the object.

[0060] The encoder is connected to the control and evaluation unit, and the control and evaluation unit is configured to evaluate the movement information of the encoder.

[0061] Thereby, there is motion information, for example to test the motion information of a radio transponder. Thus, if the encoder and the radio transponder have motion information in the same direction, it can be assumed that the motion is valid.

[0062] In a further development of the invention, in addition to the radio positioning system, a spatially resolving sensors to determine the location of people or objects.

[0063] The spatially resolving sensor checks whether a person or object of suitable size and possibly other verification parameters such as shape, speed, etc. is detected in its detection area or search zone. The spatially resolving sensor transmits the detected data to a control and evaluation unit.

[0064] The control and evaluation unit compares the features or contours of the person or object detected by the spatially resolving sensor with the features or contours of the person or object detected by the radiolocation system.

[0065] In addition, the position of a person or object detected by the radiolocation system is compared with the position of a person or object detected by a sensor with spatial resolution. Thus, the position of a person or object can be mutually verified via two different information channels and thus verified for safety applications.

[0066] In a development of the invention, the sensor with spatial resolution is a laser scanner.

[0067] Laser scanners emit a light beam with a variable spatial angle, wherein the distance to an object is determined based on the reflected light, for example based on the light flight time or phase measurement. For example, the light beam is emitted circumferentially into the monitoring area by means of a rotating mirror, thereby forming a protection field and / or a warning field. Laser scanners can detect objects and persons in a safety-related manner.

[0068] In an improved version of the invention, at least one spatially restricted access area (Zugangsbereich) having at least one access station (Zugangsstation) is arranged for a facility (Anlage), wherein the facility has at least one secure area and at least one hazardous area within the secure area, wherein the secure area is only accessible via the access area, so that people or objects can pass through the access area before reaching the secure area and after leaving the secure area, wherein the access area is only accessible with verified personal data or verified object data.

[0069] A person can be in a danger zone because the hazard or the movement that brings danger in this zone has been changed to a safe state, such as being stopped or having a safe low movement speed. However, in an adjacent danger zone, for example, production can continue with the production operation of the machine because no one is there.

[0070] A safety system is a safety system according to machine safety (eg according to standard EN / ISO 13849-1 or standard EN / IEC 62061), which provides, for example, a framework for the functional safety of safety-related electrical control systems and their subsystems on machines.

[0071] An access area is a spatially restricted access area with an access point, such as an entrance or a door. Access to the secure area of ​​the facility is only possible through this access area. It is also possible to arrange multiple access areas. This is particularly useful in the case of very large facilities, for example, with multiple secure areas.

[0072] For example, the access point can have electronic devices, such as an electronic door switch, by means of which it can be checked whether the access area is open.

[0073] For example, a facility can be an industrial facility for manufacturing products. For example, a facility is part of a car production system. The facility can also be part of a machine or a facility with multiple machines. The facility has a safety zone, which people must not enter when the facility is active because people may be endangered by the parts of the facility. For example, a facility is one or more robots whose dangerous working areas are within the safety zone.

[0074] In a development of the invention, the access point to the access area is lockable and can only be passed by authorized persons with verified personal data or authorized objects with verified object data.

[0075] Unauthorized access is thus prevented and only authorized persons, i.e. those wearing the badge, are allowed access to the secure area.

[0076] In this way, the safety of people is increased, since it is no longer possible to enter the secured area unintentionally. In this way, the availability of the facility is also increased. For example, there is an electronic access control as a locking device at the access station, which automatically releases the access area if the person carries the key device with him.

[0077] In a refinement of the present invention, when a person or object approaches a danger zone or is in a danger zone, the dangerous movement of a machine in at least one danger zone is converted into a safe state, thereby allowing the rest of the system to continue to operate efficiently.

[0078] In a development of the invention, a warning zone is formed near the danger zone, wherein a hazardous movement of at least one machine in the danger zone is converted into a safe state when a person or an object is located in the warning zone.

[0079] The warning zone results in that a person is permitted to move outside the warning zone and outside the danger zone in the safety zone. However, as long as a person is in the warning zone, movement in the danger zone changes to a safe state. The warning zone forms a defined, determined area for initiating a safe state in the danger zone. Depending on the stopping time of the machine, the size of the warning zone can be larger or smaller. Here, the danger zone can only be entered through the warning zone.

[0080] In a refinement of the present invention, at least a portion of the facility is in a safe state, in the area of ​​which a person or object is detected, so that the remaining portion of the facility can continue to be efficiently operated. BRIEF DESCRIPTION OF THE DRAWINGS

[0081] Other advantages and features of the present invention are described below based on embodiments with reference to the accompanying drawings. In the accompanying drawings:

[0082] Figure 1 A security system 1 for locating and identifying a person is shown;

[0083] Figure 2 A security system 1 for locating and identifying an object is shown;

[0084] Figure 3 A security system 1 for locating and identifying persons or objects with fixedly arranged radio stations is shown;

[0085] Figure 4 A security system 1 for locating and identifying persons or objects having a mobile arranged radio station is shown;

[0086] Figure 5 A spatially restricted access area for a facility having at least one access station is shown.

[0087] In the following figures, identical parts are provided with the same reference symbols. DETAILED DESCRIPTION

[0088] Figure 1 A security system 1 for locating and identifying a person 2 is shown, which has a control and evaluation unit 3, at least one radio positioning system 4, at least one identification sensor 7 for identifying the person 2, wherein a mark 9 is arranged on the person, wherein the radio positioning system 4 is arranged with a radio station 5, wherein at least one radio transponder 6 is arranged on the person 2, wherein position data of the person 2 can be determined by the radio positioning system 4, wherein the position data can be transmitted from the radio station 5 of the radio positioning system 4 to the control and evaluation unit 3, and identification data can be determined by the identification sensor 7 based on the mark 9 on the person 2, wherein the identification data can be transmitted from the identification sensor 7 to the control and evaluation unit 3, wherein the control and evaluation unit 3 is configured to compare the position data of the radio positioning system 4 with the identification data of the identification sensor 7 and to form verified personal data in the event of a match.

[0089] Figure 2 Similar to Figure 1 , shows a security system 1 for locating and identifying an object 8 , which has a control and evaluation unit 3 , at least one radiolocation system 4 , and at least one identification sensor 7 for identifying the object 8 .

[0090] The control and evaluation unit 3 has an input, a processing unit and an output. The identification sensor 7 and the radio station 5 are connected to the input. The control and evaluation unit 3 can be a modular control and evaluation unit which can be programmed by software.

[0091] In particular, the outputs of the control and evaluation unit 3 can be redundant safety outputs, for example semiconductor-controlled switching outputs, in order to safely disconnect a drive of a machine, for example.

[0092] The first of the two sensor technologies is a radio positioning system 4 or a radio-based positioning system, with which the position of a radio transponder 6 can be determined accurately to within a few centimeters. By means of the radio transponder identification and the reference information for the object 8 or person 2 stored thereon, the radio positioning system 4 can optionally provide classification information or identification information in addition to the position of the object 8 or person 2.

[0093] The second system is an identification sensor 7. Here, a tag 9 or optionally a transponder is required on the person 2 or object 8. The identification sensor 7 can use the identification information directly. Thus, the identification sensor 7 provides information about the person 2 or object 8, such as whether the person 2 is an authorized person 2 with certain access authorizations, or whether the object 8 is an authorized object 8 or a non-authorized object 8, or for example what type the object 8 is, and for example what the size of the object 8 is.

[0094] For object recognition or person recognition and object location or person location verification, Figure 3 Proceed as follows:

[0095] The radio positioning system 4 determines the position of an object 8 or a person 2 , wherein the position of the object 8 or the person is determined by means of a radio transponder 6 . This information is transmitted to the control and evaluation unit 3 .

[0096] Optionally, the control and evaluation unit 3 transmits the search area in which the radiolocation system 4 has detected a person 2 or an object 8 to the detection sensor 7 .

[0097] The identification sensor 7 checks whether a person 2 or an object 8 of suitable size and possibly other authentication parameters such as shape etc. is detected in its detection area or in its search area. The identification sensor 7 transmits the detected data to the control and evaluation unit 3 .

[0098] The control and evaluation unit 3 compares the features or identification data of the person 2 or object 8 detected by the identification sensor 7 with the features or contours of the person 2 or object 8 detected by the radiolocation system 4 .

[0099] In this case, the position of person 2 or object 8 detected by radiolocation system 4 and the identification data of person 2 or object 8 detected by identification sensor 7 are compared with one another.

[0100] Therefore, both person identification or object identification and person position or object position can be mutually verified via two different information channels and thus verified for applications in security technology.

[0101] according to Figure 3 , the tag 9 contains identification information of the person 2 or the object 8, thereby the person 2 or the object 8 can be clearly identified.

[0102] according to Figure 3 , the identification sensor 7 and the radio station 5 are fixedly arranged.

[0103] according to Figure 4 , the identification sensor 7 and the radio station 5 are movably arranged on a movable machine 11 .

[0104] For example, the movable machine 11 or the mobile machine may be an unmanned vehicle, or a mobile machine according to Figure 5 It is a robot with a movable mechanical arm. Therefore, the movable machine 11 has a drive and can move in different directions.

[0105] Optionally, the radio positioning system 4 is an ultra-wideband radio positioning system, wherein the frequencies used are in the range of 3.1 GHz to 10.6 GHz, wherein the transmission energy of each radio station is a maximum of 0.5 mW.

[0106] At least one transponder 6 must be arranged on the person 2 or object 8 , which transponder 6 is detected by at least three fixedly arranged radio stations 5 , the distances of the radio stations 5 being known.

[0107] Preferably, a plurality of, for example more than three, radio stations 5 are arranged, which monitor at least a part of the movement range of the person 2 or the object 8 .

[0108] At least two or more transponders 6 may also be arranged on a person 2 or an object 8. If the arrangement of the transponders 6 on a person 2 or an object 8 is known, the position of the person 2 or the object 8 can be identified more accurately and the orientation of the person 2 or the object 8 when stationary can also be detected.

[0109] Optionally, the identification sensor 7 is an RFID sensor or an RFID reader or a barcode sensor.

[0110] If an RFID reader is used, an RFID transponder is arranged as a marker 9 on the person 2 or the object 8 .

[0111] When the identification sensor 7 is configured as a barcode sensor, a barcode, a barcode, a QR code, a Data Matrix code, or the like is attached to the object 8 or the person 2 as the mark 9 .

[0112] The barcode sensor is configured to read identification data of the object 8 or person 2 from the barcode and transmit it to the control and evaluation unit 3 .

[0113] Optionally, at least one encoder is additionally arranged on the person 2 or the object 8 in order to verify the position of the person 2 or the object 8 .

[0114] The encoder is connected to a control and evaluation unit 3 , and the control and evaluation unit 3 is configured to evaluate the movement information of the encoder.

[0115] according to Figure 3 and Figure 4 In addition to the radio positioning system 4, sensors with spatial resolution are arranged to determine the position of a person or an object.

[0116] The spatially resolving sensor checks whether a person 2 or object 8 of suitable size and possibly other authentication parameters such as shape, speed, etc. is detected in its detection area or search area. The spatially resolving sensor transmits the detected data to the control and evaluation unit 3 .

[0117] The control and evaluation unit 3 compares the features or contours of the person 2 or object 8 detected by the sensor with spatial resolution with the features or contours of the person 2 or object 8 detected by the radiolocation system 4. Optionally, the sensor with spatial resolution is a laser scanner.

[0118] according to Figure 5 At least one spatially restricted access area 12 having at least one access station 13 is arranged for a facility 14, wherein the facility 14 has at least one secure area 15 and at least one hazardous area 16 within the secure area 15, wherein the secure area 15 is only accessible through the access area 12, so that a person 2 or an object 8 can pass through the access area 12 before reaching the secure area 15 and after leaving the secure area 15, wherein the access area 12 is accessible only with verified personal data or verified object data.

[0119] A person 2 can be in a danger zone 16 because the danger or the movement that brings danger in this zone has been changed to a safe state, such as stopped or with a safe low movement speed. However, for example, in an adjacent danger zone 16, production can continue with the production operation of the machine because there is no one there.

[0120] The access area 12 is a spatially restricted access area 12 with an access station 13 (e.g., an entrance or door). Only through this access area 12 can a secure area 15 of the facility 14 be entered. It is also possible to arrange multiple access areas 12. This is particularly useful in the case of very large facilities, for example, with multiple secure areas 15.

[0121] For example, the access station 13 can have an electronic device, such as an electronic door switch, by means of which it can be checked whether the access area 12 is open.

[0122] For example, the facility 14 may be an industrial facility for manufacturing products. For example, the facility is part of a car production system. The facility 14 may also be part of a machine or a facility 14 having multiple machines. The facility 14 has a safety area 15, which a person 2 may not enter when the facility 14 is active, because the person 2 may be endangered by the parts of the facility 14. For example, the facility 14 is one or more robots, whose dangerous working area is within the safety area 15.

[0123] Optionally, the access point 13 of the access area 12 is lockable and can only be passed by authorized persons 2 with verified personal data or authorized objects 8 with verified object data.

[0124] Thereby, unauthorized access is prevented and only authorized persons 2 , ie persons 2 wearing the badge 9 , can enter the secure area 15 .

[0125] Optionally, a warning zone 17 is formed near the danger zone 16 , wherein a hazardous movement of at least one machine in the danger zone 16 is converted into a safe state when a person 2 or an object 8 is located in the warning zone 17 .

[0126] The warning area 17 causes the person 2 to be allowed to move in the safety area 15 outside the warning area 17 and outside the danger area 16. However, as long as the person 2 is in the warning area 17, the movement in the danger area 16 is converted into a safe state. The warning area 17 forms a defined, determined area to initiate a safe state in the danger area 16. Depending on the stopping time of the machine, the size of the warning area 17 can be larger or smaller. Here, the danger area 16 can only be entered through the warning area 17.

[0127] Optionally, at least a portion of the facility is in a safe state, in which a person 2 or an object 8 is detected. Thus, the remaining portion of the facility 14 can continue to operate efficiently.

[0128] Reference Mark

[0129] 1. Security System

[0130] 2 people

[0131] 3 Control and evaluation unit

[0132] 4 Radio positioning system

[0133] 5 Radio Station

[0134] 6 Radio transponder

[0135] 7 Identification Sensor

[0136] 8 Objects

[0137] 9 Mark

[0138] 11 Mobile machines

[0139] 12 Access Area

[0140] 13 Entry and Exit

[0141] 14 Facilities

[0142] 15 Safe Area

[0143] 16 Danger Zone

[0144] 17 Warning area.

Claims

1. A security system (1) for locating and identifying a person (2) or an object (8), the security system (1) comprising: a control and evaluation unit (3), at least one radio positioning system (4), at least one identification sensor (7) for identifying a person (2) or an object (8), in, A mark (9) is arranged on a person (2) or an object (8), The radio positioning system (4) is provided with radio stations (5), wherein the radio positioning system (4) is an ultra-wideband radio positioning system, wherein the frequencies used are in the range of 3.1 GHz to 10.6 GHz, wherein the transmission energy of each radio station (5) is a maximum of 0.5 mW, In this case, at least one radio transponder (6) is arranged on a person (2) or an object (8). wherein the position data of a person (2) or an object (8) can be determined by means of the radio positioning system (4), wherein the position data can be transmitted from a radio station (5) of the radio positioning system (4) to the control and evaluation unit (3) and the identification data can be determined by the identification sensor (7) based on a marking on the person (2) or the object (8), wherein the identification data can be transmitted from the identification sensor (7) to the control and evaluation unit (3), Therein, the control and evaluation unit (3) is configured to compare the position data of the radio positioning system (4) with the identification data of the identification sensor (7) and to form verified personal data or verified object data in the event of a match.

2. The safety system (1) according to claim 1, characterized in that The identification sensor (7) and the radio station (5) are arranged fixedly or movably on a movable machine (11).

3. The safety system (1) according to claim 1, characterized in that The identification sensor (7) is an RFID sensor or a barcode sensor.

4. The safety system (1) according to claim 2, characterized in that The identification sensor (7) is an RFID sensor or a barcode sensor.

5. The safety system (1) according to any one of claims 1 to 4, characterized in that: In addition, at least one encoder is arranged to verify the position of the object (8).

6. The safety system (1) according to any one of claims 1 to 4, characterized in that: In addition to the radio positioning system (4), at least one sensor with spatial resolution is arranged to determine the position of a person (2) or an object (8).

7. The safety system (1) according to claim 5, characterized in that In addition to the radio positioning system (4), at least one sensor with spatial resolution is arranged to determine the position of a person (2) or an object (8).

8. The safety system (1) according to claim 6, characterized in that The sensor with spatial resolution is a laser scanner.

9. The safety system (1) according to claim 7, characterized in that The sensor with spatial resolution is a laser scanner.

10. The safety system (1) according to any one of claims 1 to 4 and 7 to 9, characterized in that At least one spatially restricted access area (12) having at least one access station (13) is arranged for a facility (14), wherein the facility (14) has at least one safety area (15) and at least one danger area (16) within the safety area (15), wherein the safety area (15) is only accessible through the access area (12), so that a person (2) or an object (8) can pass through the access area (12) before arriving at the safety area (15) and after leaving the safety area (15), wherein the access area (12) is accessible only with verified personal data or verified object data.

11. The safety system (1) according to claim 5, characterized in that At least one spatially restricted access area (12) having at least one access station (13) is arranged for a facility (14), wherein the facility (14) has at least one safety area (15) and at least one danger area (16) within the safety area (15), wherein the safety area (15) is only accessible through the access area (12), so that a person (2) or an object (8) can pass through the access area (12) before arriving at the safety area (15) and after leaving the safety area (15), wherein the access area (12) is accessible only with verified personal data or verified object data.

12. The safety system (1) according to claim 6, characterized in that At least one spatially restricted access area (12) having at least one access station (13) is arranged for a facility (14), wherein the facility (14) has at least one safety area (15) and at least one danger area (16) within the safety area (15), wherein the safety area (15) is only accessible through the access area (12), so that a person (2) or an object (8) can pass through the access area (12) before arriving at the safety area (15) and after leaving the safety area (15), wherein the access area (12) is accessible only with verified personal data or verified object data.

13. The safety system (1) according to claim 10, characterized in that The access point (13) of the access area (12) is lockable and only authorized persons (2) or authorized objects (8) can pass through.

14. The safety system (1) according to claim 11, characterized in that The access point (13) of the access area (12) is lockable and only authorized persons (2) or authorized objects (8) can pass through.

15. The safety system (1) according to claim 12, characterized in that The access point (13) of the access area (12) is lockable and only authorized persons (2) or authorized objects (8) can pass through.

16. The safety system (1) according to any one of claims 1-4, 7-9 and 11-15, characterized in that When a person (2) or an object (8) approaches at least one danger zone (16) or is located in at least one danger zone (16), a hazardous movement of a movable machine (11) in the danger zone (16) is converted into a safe state.

17. The safety system (1) according to claim 5, characterized in that When a person (2) or an object (8) approaches at least one danger zone (16) or is located in at least one danger zone (16), a hazardous movement of a movable machine (11) in the danger zone (16) is converted into a safe state.

18. The safety system (1) according to claim 6, characterized in that When a person (2) or an object (8) approaches at least one danger zone (16) or is located in at least one danger zone (16), a hazardous movement of a movable machine (11) in the danger zone (16) is converted into a safe state.

19. The safety system (1) according to claim 10, characterized in that When a person (2) or an object (8) approaches at least one danger zone (16) or is located in at least one danger zone (16), a hazardous movement of a movable machine (11) in the danger zone (16) is converted into a safe state.

20. The safety system (1) according to claim 10, characterized in that A warning zone (17) is formed near the danger zone (16), wherein a dangerous movement of a movable machine (11) in at least one danger zone (16) is converted into a safe state when a person (2) or an object (8) is located in the warning zone (17).

21. The safety system (1) according to any one of claims 11-15 and 17-19, characterized in that A warning zone (17) is formed near the danger zone (16), wherein a dangerous movement of a movable machine (11) in at least one danger zone (16) is converted into a safe state when a person (2) or an object (8) is located in the warning zone (17).

22. The safety system (1) according to claim 16, characterized in that A warning zone (17) is formed near the danger zone (16), wherein a dangerous movement of a movable machine (11) in at least one danger zone (16) is converted into a safe state when a person (2) or an object (8) is located in the warning zone (17).

23. The safety system (1) according to any one of claims 1-4, 7-9, 11-15, 17-20 and 22, characterized in that At least a portion of the facility (14) is in a safe state, in the area of ​​which a person (2) or an object (8) is detected.

24. The safety system (1) according to claim 5, characterized in that At least a portion of the facility (14) is in a safe state, in the area of ​​which a person (2) or an object (8) is detected.

25. The safety system (1) according to claim 6, characterized in that At least a portion of the facility (14) is in a safe state, in the area of ​​which a person (2) or an object (8) is detected.

26. The safety system (1) according to claim 10, characterized in that At least a portion of the facility (14) is in a safe state, in the area of ​​which a person (2) or an object (8) is detected.

27. The safety system (1) according to claim 16, characterized in that At least a portion of the facility (14) is in a safe state, in the area of ​​which a person (2) or an object (8) is detected.

28. The safety system (1) according to claim 21, characterized in that At least a portion of the facility (14) is in a safe state, in the area of ​​which a person (2) or an object (8) is detected.

29. A method with a security system (1) for locating and identifying a person (2) or an object (8), the security system having: a control and evaluation unit (3); at least one radio positioning system (4); at least one identification sensor (7) for identifying a person (2) or an object (8), in, A mark (9) is arranged on a person (2) or an object (8), The radio positioning system (4) is provided with radio stations (5), wherein the radio positioning system (4) is an ultra-wideband radio positioning system, wherein the frequencies used are in the range of 3.1 GHz to 10.6 GHz, wherein the transmission energy of each radio station (5) is a maximum of 0.5 mW, In this case, at least one radio transponder (6) is arranged on a person (2) or an object (8). wherein the position data of a person (2) or an object (8) are determined by means of the radio positioning system (4), wherein the position data are transmitted from a radio station (5) of the radio positioning system (4) to the control and evaluation unit (3) and identification data are determined by the identification sensor (7) based on a marking on the person (2) or the object (8), wherein the identification data are transmitted from the identification sensor (7) to the control and evaluation unit (3), Therein, the control and evaluation unit (3) compares the position data of the radio positioning system (4) with the identification data of the identification sensor (7) and, in the event of a match, forms verified personal data or verified object data.

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