Additional area monitoring for building entrances

Abstract

A system (1) for monitoring access to a building and / or restricted access areas (36) within a building, comprising a building door system (2) having a building door (2a), an electronic closing device (50), and an identification device (6) for detecting an authorized credential of an object (20). The building door (2a) is unlockable via the electronic closing device (50) with a valid authorized credential and is able to move from a closed position to an open position to allow access to the object (20) at the building door (2a). A sensor system (8) monitors access areas (Z1, Z2, Z3) including a designated access range of the building door (2a) to detect persons (4) within the access areas (Z1, Z2, Z3). When the building door system (2) allows access to the object (20) and the sensor system (8) detects persons (4) within the access areas (Z1, Z2, Z3), a control device (24) generates a warning signal, wherein the building door system (2) prevents access permission upon receiving the warning signal.

Description

Technical Field

[0001] The technology described herein generally relates to an access monitoring system for buildings. Embodiments of this technology also relate to a method for operating such an access monitoring system. Background Technology

[0002] Access monitoring systems can be configured in various ways to allow or deny access to restricted areas. This design can, for example, involve how a person (user) is authenticated as authorized, such as by carrying a key, magnetic card, chip card, RFID card, or mobile electronic device (e.g., a mobile phone). WO2010 / 112586A1 describes an access monitoring system in which an authorized user on a mobile phone receives an access code displayed on a monitor. If the user holds the mobile phone over a camera, allowing the camera to detect the displayed access code, the access monitoring system grants the user access if the access code is valid.

[0003] The design of access monitoring systems can also involve methods of allowing or preventing personnel from passing through doors, gates, or barriers. For example, it is known that electronic locks are installed on doors, and an access code must be entered into the electronic lock for the door to be unlocked and opened. In addition to unlocking functions on doors, it is known to monitor passageways through doors. For example, WO2018 / 069341A1 describes a device that monitors whether objects are moving and which objects are moving through a door using sensors. For object monitoring using infrared imaging and infrared pulse illumination, the device has a three-dimensional object recognition device consisting of a radiation source and an image capturing device, which is fixedly fastened near a wall or door frame. The object recognition device determines the geometry of the object (person, vehicle) to determine the degree to which the door should be opened to allow the object to pass. Thus, the comfort and safety of passing objects should be ensured; for example, the movement or movement of people should be reliably detected when passing through a door. Summary of the Invention

[0004] The system involves various requirements for access monitoring and related design schemes for access monitoring systems. In addition to these known requirements, other requirements exist, such as those arising from changing lifestyles or living environments (e.g., high-density apartment living in cities), including the need for enhanced security and increasing automation within and around buildings. Therefore, a technology is needed for an access monitoring system that meets these requirements, where access monitoring, in particular, takes security requirements into account without adversely affecting user comfort.

[0005] One aspect of this technology relates to a system for monitoring access to a building and / or access to restricted areas within a building. The system includes a building door system having a building door, an electronic closing device, and an identification device for detecting an authorized credential. The building door is unlocked by the electronic closing device when the authorized credential is valid and can move from a closed position to an open position, allowing authorized individuals to access the building door. The system also includes a sensor system configured to monitor the access area, including a designated access zone encompassing the building door, and to detect people within the access area. A control unit of the system is communicatively connected to the building door system and the sensor system. The control unit is configured to generate a warning signal when the building door system grants access and the sensor system detects a person in the access area; upon receiving the warning signal, the building door system prevents the granted access.

[0006] Another aspect of this technology relates to a method for operating a system for monitoring access to a building and / or restricted areas within a building. The system includes a building door system having a building door, an electronic closing device, and an identification device for detecting an object's authorization credentials; a sensor system for monitoring an access area including a designated access range of the building door; and a control device communicatively connected to the building door system and the sensor system. According to the method, when an object is located in the access area of ​​the building door, the identification device detects the object's authorization credentials. With valid authorization credentials, the building door can be unlocked and moved from a closed position to an open position, thus granting the object access to the building door. The sensor system detects whether someone is present in the access area. When the building door system grants access to the building door and the sensor system detects a person in the access area, the control device generates a warning signal. Upon receiving the warning signal, the building door system prevents access from being granted to the building door.

[0007] The technology described herein provides an access monitoring system that offers additional security, particularly when an object autonomously seeks access to a building door without any accompanying personnel. The object can be an autonomously moving object (hereinafter referred to as a robot) or a pet (e.g., a dog or cat). According to the technology described herein, access is granted to the object only when the access area of ​​the building door is secure. In one embodiment, the access area is secure when the object is alone in the access area. On the other hand, if an unauthorized person unrelated to the object (e.g., not accompanying) is present in the access area, the access area is considered insecure according to the technology described herein. Access is denied in this case to, for example, prevent unauthorized entry.

[0008] Access denial can be implemented in various ways and methods, and is particularly flexible in matching the specific situation. In one embodiment, denying access may include blocking a building door in a closed position. In this case, unauthorized personnel are detected before the building door is opened for the object. As the building door is opened, for example, it may wait until the unauthorized personnel have left the access area and the access area is then considered secure. Depending on the system design, the object can then re-present their authorization credentials.

[0009] In one embodiment, preventing authorized access may include blocking a building door in a partially open position. In this case, unauthorized personnel are detected when the building door has been unlocked and partially opened for an object. The building door may then be blocked so that it cannot be opened further. This is particularly advantageous when the building door is only opened to a gap too narrow for a person. In one embodiment, the process may continue as the building door opens further until the unauthorized personnel leave the access area and the access area is then deemed secure.

[0010] In one embodiment, preventing permitted access may include closing a building door from a fully or partially open position; in one embodiment, the fully open position is determined for the object. For an object (e.g., a robot or pet), the building door may be opened only to the extent that the object can pass through; this width is the fully open position in this case. From this fully or partially open position, the closing of the building door can be triggered. If the object is not yet in the passageway area, the building door can be closed again. Conversely, if the object is already in the passageway area, the building door may be closed, for example, to the extent that the building door contacts the object.

[0011] In embodiments of the technology described herein, an object can gain access to a building door without being accompanied by an authorized person and without an authorized person remaining in a restricted area. The technology described herein provides the additional security described above in this situation by reducing the risk of unauthorized personnel gaining access through a building door opened for the object.

[0012] In one embodiment, the technology utilizes an identification device arranged on or around a building door system and communicatively connected to a control device. Therefore, the building door system can be tailored to the specific building. In one embodiment, the building door system includes sliding doors; the identification device can be arranged on the sliding doors, thereby reducing wiring costs.

[0013] The identification device is configured to detect authorization credentials presented by an individual. Advantageously, the type of authorization credential and the design of the identification device can be selected according to the requirements of the building. The identification device may include, for example, a device for transmitting and receiving radio signals, a detection device for biometric features, a detection device for optical encoding, a reader for magnetic stripe cards or chip cards, and / or a keyboard or touchscreen for manually entering a password. In one embodiment, the identification device may have a device for transmitting and receiving radio signals and a detection device for optical encoding (e.g., a digital camera). Optical encoding schemes (e.g., barcodes, QR codes, and color codes) may also be selected.

[0014] In one embodiment, the sensor system includes a camera and is configured to evaluate images captured by the camera to detect persons remaining in the access area. There is flexibility regarding the type of camera. The camera can be, for example, a 2D camera or a 3D camera. A time-of-flight camera could be selected as an example of a 3D camera.

[0015] Furthermore, an advantage of the technology described herein is that its use is not limited to any particular type of building door system. In one embodiment, the building door system may include a sliding door installed in a space-saving manner within a building. The wall shell area of ​​the door frame at least partially accommodates the sliding door in the open position. Additionally, the door frame has a passageway area. The sliding door has end sides that point towards the passageway area in the open position. In one embodiment, the sliding door has an actuator configured to position the door leaf in a first position with a first door leaf spacing in the closed position and in a second position with a second door leaf spacing in the open position. Here, the first door leaf spacing is greater than the second door leaf spacing. This building door system is particularly suitable for the objects described herein (especially robots) because the object and the building door system do not need to consider the door leaf rotation range. Once the object leaves the sliding door's travel path, i.e., outside the passageway area, the closing process of the sliding door can be triggered, for example.

[0016] In one embodiment, the sliding door system has an interface device disposed on the building door and configured to send data to and / or receive data from a building management system. The building management system may be located within the building or spatially located away from the building.

[0017] The authorization credential authorizes access to an object. In one embodiment, the control device determines a data set in storage where the authorization credential corresponds to the access authorization if the authorization credential is valid for the object. This data set can be managed by personnel responsible for restricting access to restricted areas (tenants, owners, building managers, etc.). In one embodiment, the authorization credential also corresponds to the opening width of a building door. Here, the opening width is optimally optimized for the object. Attached Figure Description

[0018] Hereinafter, different aspects of the improved technique are described in detail with reference to the accompanying drawings and embodiments. In the drawings, the same elements have the same reference numerals. Wherein:

[0019] Figure 1 A schematic diagram illustrating an exemplary scenario in a building having an access monitoring system according to one embodiment;

[0020] Figure 2 A schematic diagram of an exemplary sliding door system is shown as one embodiment of a building door system;

[0021] Figure 3A A schematic diagram of an exemplary sliding door system with a closed sliding door is shown;

[0022] Figure 3B Show Figure 3A A schematic diagram of a sliding door system, with the sliding door in the middle position;

[0023] Figure 3C Show Figure 3A A schematic diagram of a sliding door system, wherein the sliding door is in the open position; and

[0024] Figure 4 A flowchart illustrating one embodiment of a method for running an access monitoring system is shown. Detailed Implementation

[0025] Figure 1 This is a schematic diagram of an exemplary situation in an exemplary building, which has an access monitoring system 1 and one or more floors L0, L1. In this specification, the term "building" can be understood, for example, as a residential and / or commercial building, hotel, hospital, or other building in which people may reside. If there are multiple floors in the building, these floors can be served by elevator equipment 10 in a known manner. For illustration, in Figure 1 The diagram shows an elevator system 10 comprising an elevator car 12, an elevator door 14, a drive unit 16, and a counterweight 18.

[0026] In the illustrated embodiment, the building has a ground floor L0 and a floor L1 that can be used by persons 4 or objects 20. For illustration, Figure 1 The diagram shows a person 4 outside the building, in front of door 2, and a person 4 and object 20 (e.g., an autonomous robot) on floor L1. For example, person 4 or object 20 may be authorized to enter the building and one or more spaces within it; the building door system 2 configured for this purpose may block building door 2a for person 4 or object 20 or open the building door for them if access authorization exists. However, person 4 or object 20 may not be authorized to enter other spaces; the corresponding building door 2 remains locked for person 4 or object 20.

[0027] Figure 1 On the upper floor L1, two building doors 2a are shown that serve as interior doors, allowing people 4 or objects 20 to enter and exit restricted areas or spaces 36 located behind them (see above). Figure 2 Buildings and / or separate areas or spaces with restricted access may be managed by responsible personnel (e.g., tenants, owners, building managers, etc.); the responsible personnel may grant access authorization accordingly.

[0028] Those skilled in the art will recognize that a building at the ground floor L0 may also have one or more building doors 2a, such as another room door and / or one or more interior doors. In the upper floors L1, one or more building doors 2a can be provided. Two or more building doors can be, for example, in an office building or a residence, in which case access to individual offices or residences can be made from a common lobby.

[0029] Figure 1 Each building door 2a shown has an electrically controlled closing device 50 (see reference). Figure 2 The closing device 50 can lock and unlock the building door 2a. In one embodiment, the closing device 50 can be operated by an electrical control signal. When the building door 2a is to be opened to a person 4 or object 20, the electrical control signal activates the closing device 50, thereby unlocking the building door 2a. Correspondingly, in one embodiment, the closing device 50 can be operated by an electrical control signal to lock the building door 2a. An embodiment of the closing device 50 is given elsewhere in this specification.

[0030] in addition, Figure 1 The diagram illustrates a building management system 22 (BM), a communication network 28, and a sensor system 8. The communication network 28 extends horizontally across floors L0 and L1 and between floors L0 and L1, connecting the sensor system 8 to the building management system 22. The sensor system 8 comprises multiple individual systems, each... Figure 1 The sensor system 8 is shown as a camera (reference numeral 8 can also refer to a camera in the following figures). The sensor system 8 monitors specific areas or ranges within a building, and, depending on the building and requirements, also monitors areas outside the building. According to the techniques described herein, the sensor system 8 monitors, particularly... Figure 1 The diagram exemplarily illustrates access areas Z1, Z2, and Z3 within the area of ​​building door 2a. Those skilled in the art will recognize that access areas Z1, Z2, and Z3 may overlap, and for example, only a single access area Z1, Z2, and Z3 may be fixed on a floor L0, L1; this access area may extend, for example, over the entire area in front of one or more building doors 2a on floor L0, L1. Those skilled in the art will also recognize that the sensor system 8 can be adapted to the building (e.g., regarding its size, location, and type of use) and can also monitor, for example, corridors, passageways, parking levels, garages, and stairwells. Accordingly, the number of cameras 8 and their positioning within the building can be selected.

[0031] In the illustrated embodiment, one aspect of the building management system 22 relates to the monitoring and surveillance of access to the building and its various areas and spaces. In one embodiment, this aspect may be implemented by a control device (μP) 24 connected to the building door system 2, sensor system 8, and storage device 26, in which a database for implementing the building is stored; these components are part of the access monitoring system 1, which will be referenced in the following description.

[0032] exist Figure 1 In the scenario illustrated, the techniques described herein can be applied advantageously to operate the access monitoring system 1 with the highest possible level of security. Simply and exemplarily summarized, the access monitoring system 1 includes a building door system 2, a sensor system 8, and a control device 24. The building door system 2 includes one or more building doors 2a, each having an electronic closing device 50 and an identification device 6 for detecting the authorization credentials of a person 4 or object 20, wherein the building door 2a is unlocked by the electronic closing device 50 with valid authorization credentials and moved from a closed position to an open position to allow the person 4 or object 20 access to a restricted access area 36. The sensor system 8 is configured to monitor access areas Z1, Z2, Z3 including a designated access range of the building door 2a, and to detect the person 4 within the access areas Z1, Z2, Z3. The control device 24 is communicatively connected to the building door system 2 and the sensor system 8 and is configured to generate a warning signal when the building door system 2 allows the object 20 to enter and the sensor system 8 detects the person 4 within the access areas Z1, Z2, Z3. When a warning signal is received through building door system 2, building door system 2 prevents access from being granted.

[0033] Therefore, this technology uses a sensor system 8, for example, to identify in Figure 1 The object 20 shown in region Z3 moves, for example, from elevator door 14 toward building door 2a in region Z3. For example, object 20 could be a robot or a pet (e.g., a dog or a cat). In the following description, object 20 is the object that wishes to move to the space behind building door 2a (e.g., ...). Figure 2 Robots are deployed to restricted areas (36) within the building to perform tasks (e.g., loading goods or cleaning floors). The personnel responsible for this space may, for example, grant access authorization to object 20 to the building and / or space using a task assignment device. The access authorization, along with the associated authorization credential (e.g., access code), is stored in the building management system 22, particularly in storage device 26.

[0034] If object 20 is then located at building door 2a and presents a valid access authorization credential (authorization credential), building door 2a can be unlocked. Before opening building door 2a, access monitoring system 1 checks whether access area Z3 is "secure" using sensor system 8. If no person 4 is in access area Z3, i.e., object 20 is only located in front of building door 2a, then access area Z3 is secure and building door 2a can be opened in response to a control signal to allow object 20 to enter. Conversely, if access area Z3 is insecure because there is another person 4 (e.g., without access authorization to building door 2a) in access area Z3 besides object 20, control device 24 generates a warning signal; a warning signal is generated when building door system 2 allows object 20 to enter and sensor system 8 detects person 4 in access area Z3 substantially simultaneously. Therefore, the access authorization process can be blocked, for example, the process can be interrupted until access area Z3 is secure again. During this interruption, building door 2a is locked and closed. Alternatively, the process can be interrupted if it has already been performed; in this case, building door 2a is locked and / or closed. In one embodiment, object 20 can re-present its authorization credentials after a predetermined waiting time; then the process is repeated, if necessary, until access area Z3 is secure. Therefore, this technology reduces the risk that unauthorized personnel might enter the space through building door 2a opened for the robot.

[0035] According to the technology described herein, a person 4 remaining in access areas Z1, Z2, and Z3 is detected by sensor system 8. In one embodiment, sensor system 8 may include an optical sensor in the visible or infrared spectrum connected to an evaluation device. In another embodiment, sensor system 8 may include a sensor based on another physical principle, such as an ultrasonic sensor or a radar sensor. In one embodiment, evaluation of the sensor signals allows determination of the position, movement speed, and velocity of person 4. In the following description, sensor system 8 has a camera as an optical sensor connected to an evaluation device for digital image capture. Such a camera may be, for example, a 2D camera or a 3D camera, the operation of which is known to those skilled in the art, and therefore only the operation of a 3D camera is summarized herein.

[0036] As a 3D camera, a camera based on the time-of-flight (TOF) sensor measurement principle can be used. A 3D camera includes a light-emitting diode (LED) unit or a laser diode unit, which, for example, emits light in the infrared range, wherein the light is emitted in short pulses (e.g., 10 nanoseconds in duration). The 3D camera also includes a sensor array consisting of multiple photosensitive elements. The sensor array is connected to a processing chip (e.g., a CMOS sensor chip) that determines the propagation time of the emitted light. The processing chip simultaneously measures the distances to an integer number of target points in space within milliseconds. A 3D camera can also be based on a measurement principle in which the propagation time of emitted light is detected by the phase of the light. Here, the phase at the time of light emission and at the time of light reception are compared, and the elapsed time or the distance to the reflecting object is determined from this. For this purpose, it is preferable to emit a modulated light signal instead of short light pulses. Other details of the measurement principle are given, for example, in the following publications: “Fast Range Imaging by CMOS Sensor Array Through Multiple Double Short Time Integration (MDSI)”, P. Megelet et al., Siemens AG, Corporate Technology Department, Munich, Germany; and “A CMOS Photosensor Array for 3D Imaging Using Pulsed Laser”, R. Jerema et al., 2001 IEEE International Solid-State Circuits Conference, page 252.

[0037] The control unit 24 of the access monitoring system 1 is connected to the identification unit 6. The identification unit 6 is typically configured to detect authorization credentials, based on which the access control system 1 can determine the access authorization of person 4 or object 20. For example, the credentials can be in the form of a physical key, a manually entered password (e.g., a PIN code), a biometric feature (e.g., fingerprint, iris pattern, voice / voice feature, or facial feature), or an access code detected by a magnetic card, chip, or RFID card or electronic device (based on NFC, Bluetooth, or cellular). When access to the restricted area 36 is desired, the authorization credential must be presented.

[0038] Depending on the form the authorization credential may take, presentation of the authorization credential can be accomplished in various ways, such as through intentional manual action (e.g., entering a PIN code or holding an RFID card) or by walking towards a door to enter the radio range of the identification device 6 (e.g., for establishing an RFID or Bluetooth connection). The identification device 6 may be located on or around the building door 2a, for example, on the outside of the building door 2a, such that the identification device 6 can detect the authorization credential if a person or object 20 is in front of the building door 2a.

[0039] The identification device 6 is configured based on the authorization credentials provided in the access monitoring system 1. This means that the identification device 6 may include, for example, a gate, a biometric detection device, a detection device for optical codes (e.g., barcodes, QR codes, and color codes (see WO2015049186A1)), a reader for magnetic stripe cards or chip cards, a keyboard or touchscreen for manually entering a password, and a means for transmitting and receiving radio signals. Those skilled in the art will recognize that, in one embodiment, the identification device 6 may be designed for one or more of these authorization credentials. In one embodiment, the identification device 6 includes, for example, a means for transmitting and receiving radio signals and a digital camera for detecting optical codes or faces. The optical codes may be clearly printed on a carrier material or displayed on a display screen of a mobile wireless device. Figure 1 In the scenario shown, object 20 requests access and presents an authorization credential to building door 2a in access area Z3; personnel 4 are not authorized to access there. An identification device 6 is designed on the building door 2a to recognize the authorization credential suitable for object 20. In one embodiment, the authorization credential is transmitted from object 20 to identification device 6 via radio, particularly Bluetooth technology.

[0040] Those skilled in the art will recognize that the building management system 22 can be partially or completely migrated to an IT infrastructure used for so-called cloud computing (also colloquially referred to as the "cloud"). This includes, for example, storing data in a remote data center and executing programs that are not local but remotely installed. Depending on the design, specific functions may be provided, for example, in the control unit 24 or via the "cloud." For this purpose, software applications or portions thereof may be executed in the "cloud." The control unit 24 then accesses the infrastructure when needed to execute the software application.

[0041] Figure 2A schematic diagram of an exemplary building door system 2 in the form of a sliding door system (correspondingly, the building door system 2 is also referred to below as sliding door system 2, which has a sliding door 2a) is shown. The sliding door system 2 is inserted into the building wall and serves as a physical barrier between the public area 34 and the access-restricted area 36. Based on Figure 2 The xyz coordinate system is indicated, with the building walls extending in a plane bounded by the x and z axes. The restricted access area 36 can be, for example, a residential, commercial space, or other space within the building. The sliding door system 2 can be inserted into an interior wall of the building (for monitoring access within the building, such as access to a residence) or an exterior wall of the building (for monitoring access to the building). As detailed elsewhere in this specification, the sliding door system 2 opens the sliding door 2a for the authorized access recipient 20.

[0042] exist Figure 2 The sliding door system 2 shown includes a door frame 44 (also called a door frame) and a sliding door 2a. The door frame 44 has a passage region 42 and a shell region 30, the shell region 30 being designed to at least partially accommodate the sliding door 2a. For this purpose, the shell region 30 has a structure forming a cavity, the dimensions of which are designed to accommodate the sliding door 2a. The passage region 42 is a region in the building wall in which passage is possible from one region (34, 36) to another region (34, 36) in the y-axis direction; the passage region exists between the vertical frame members (doorposts) and the opposing shell region 30. According to the design, the shell region 30 can be installed in a cavity in the building wall, or the shell region 30 can be understood as possibly being part of the building wall behind a lining.

[0043] Sliding door 2a can be in door frame 44 Figure 3A The closing position shown in the image is the same as... Figure 3C Move between the open positions shown in the diagram. Based on... Figure 2 The xyz coordinate system indicated in the figure enables the sliding door 2a to move along the x-axis. In the open position, in one embodiment, the sliding door 2a is substantially located within the wall shell region 30. Between the maximum positions, the sliding door 2a can occupy... Figure 2 The diagram shows an intermediate position in which the sliding door 2a (and corresponding passage area 42) is more or less open, i.e., the end side 38 of the sliding door 2a has a variable distance from the frame component. Figure 3B In the diagram, the variable spacing is drawn as the open width W.

[0044] The sliding door 2a (within and outside the sliding door 2a respectively) has two generally parallel door leaves 32. The door leaves 32 are spaced apart (in the y-direction) such that an internal space exists between them, in which system components and sound-insulating materials for sound insulation and fire protection can be arranged. The door leaves 32 are connected to each other in the region of end sides 38, as shown, for example, in Figure 3a. Each door leaf 32 extends parallel to the xz plane. Further details of the sliding door 2a are disclosed in other parts of this specification.

[0045] also, Figure 2 Embodiments of a processor unit (DC) 54, an identification device 6, an interface device 48, and a closing device 50 (M) are also shown, these components being, in one embodiment, components of a sliding door system 2. In one embodiment, the sliding door system 2 is connected to a building management system 22 (BM); Figure 2 In the illustrated embodiment, this connection is achieved via a communication network 28 to which the building management system 22 and interface device 48 are connected. Depending on the design, specific functions may be provided, for example, in the processor unit 54, in the building management system 22, or via the "cloud." The processor unit 54 or the building management system 22 accesses the infrastructure as needed to execute required software applications.

[0046] The communication network 28 may include an electronic bus system in one implementation system. In one embodiment, the electrical connection of the sliding door system 2, including its power supply, is realized via an interface device 48. Those skilled in the art will understand that multiple sliding door systems 2 may exist in a building, and each of these sliding door systems 2 may be coupled to the communication network 28 to communicate with the building management system 22, for example, in conjunction with the determination and verification of access authorization (if this is done centrally by the building management system 22).

[0047] Processor unit 54 is connected to sensor unit 40 via electrical connector 58. Processor unit 54 is also connected to shut-off device 50 and interface device 48 via electrical connector 52. Electrical connectors 52 and 58 are configured for signal and / or energy transmission, and for this purpose may each include separate electrical wires or electrical bus systems.

[0048] Processor unit 54 is also connected to identification device 6. Figure 2 In the embodiment shown, the identification device 6 detects the authorization credential, and the wireless device 46 of the object 20, or a wireless device carried by the object 20, transmits the authorization credential as a radio signal. The radio signal can be transmitted according to known standards for radio communication (e.g., RFID, WLAN / WiFi, NFC, Bluetooth). Accordingly, the identification device 6 is designed to receive such radio signals; for this purpose, in Figure 2 The image shows the transmitting / receiving device 56 and the antenna connected thereto.

[0049] The transmitting / receiving device 56, alone or in conjunction with the processor unit 54 and / or the control unit 24 and the stored database (26), determines from the received radio signals an authorization credential subsequently used to determine access authorization. If the authorization credential is valid, access is granted to the object 20; in this case, the processor unit 54 manipulates the closing device 50, which moves the sliding door 2a toward the open position. If the authorization credential is invalid, the sliding door 2a remains closed and locked.

[0050] Sensor unit 40 is arranged on the end side of sliding door 2a, for example, in the region of the upper (corner) edge of sliding door 2a. From this enlarged region, sensor unit 40 has an optimized detection field in the direction of the passage region 42 and the ground. An exemplary detection field is shown in... Figure 2 (vertical) and Figure 3B (Horizontal) shown. Additionally, the sensor unit 40 is better protected in this area from contamination and damage (e.g., due to intentional vandalism). Those skilled in the art will recognize that the sensor unit 40 may be arranged in another location on the sliding door 2a in another embodiment; the sensor unit 40 may also be arranged on the door frame 44.

[0051] According to the technique described herein, the (vertical) height of object 20 is determined by means of sensor unit 40. In this specification, the term "height" is used for the extension of object 20 in the z-axis direction; although according to the technique described herein, object 20 may also be a person (for which their height is typically given). Here, the height of object 20 (person, animal, or robot) represents the distance between the ground and the uppermost point or area of ​​object 20. At the determined point in time (measurement point in time), object 20 is substantially located on the ground within channel area 42. Sensor unit 40 has a fixed and known distance from the ground (ground distance). In this case, according to one embodiment, the object distance between sensor unit 40 and object 20 is determined. The height H of object 20 is derived from the difference between the ground distance and the object distance.

[0052] In one embodiment, sensor unit 40 includes a 3D camera. The operation of the 3D camera is described elsewhere in this specification in conjunction with sensor system 8.

[0053] The aforementioned components (processor unit 54, identification device 6, interface device 48, and closing device 50) are disposed on the sliding door 2a and move together with the sliding door 2a. In one embodiment, the processor unit 54 is disposed in the area between the door panels 32, for example, in the area on the back side of the sliding door 2a opposite to the end side. In one embodiment, the back side of the sliding door 2a is not visible from the outside because the sliding door 2a may be wider than the passage area 42, and therefore the back side is also retained in the wall housing area 30 in the closed position of the sliding door 2a, where the locking device 50 and the interface device 48 may also be disposed. Electrical connections 52 and 58 are correspondingly disposed between the door panels 32 and are not visible from the outside. However, the technology described herein is not limited to this exemplary arrangement of components.

[0054] Storage device 26 is electrically connected to control device 24. In the illustrated embodiment, storage device 26 has a storage area for a database (DB) and a storage area for one or more computer programs (SW) for running the sliding door system 2. In one embodiment, running the sliding door system 2 includes opening the sliding door 2a as a function of an identified object 20 and determining the height H of the object 20. The computer program can be executed by control device 24.

[0055] The database stores data sets of individuals and objects 20 authorized to access restricted area 36. These stored data sets are also referred to below as user profiles. User profiles include data such as names, credentials (key numbers, PIN codes, access codes, including biometric data), and possible time-based access restrictions (e.g., access from Monday to Friday, from 7:00 AM to 8:00 PM). If multiple individuals and objects are authorized to access restricted area 36, ​​the database stores user profiles for each individual and object.

[0056] According to the technology described herein, each user profile includes additional instructions on how to open the sliding door 2a to a certain opening width W (see [link to user profile]). Figure 3B And what height H the object 20 has. The height H of the object 20 can be a maximum height or a height range, because, for example, a cat with a lowered or raised head and / or a raised tail can pass through the passage area 42. In one embodiment, its length (in the y direction) may be additionally given for each object 20. Height H and length (if present) are reasonable parameters as described elsewhere in this specification.

[0057] This data can be organized in a tabular format, such as shown in the table below. The table shows four user profiles for four types of authorizations (human, cat, dog, robot). Each authorization is assigned an identifier (ID) associated with width W and height H. For example, if the identification device 6 identifies ID = 78, then user profile 4 for the robot is accessed. In this case, the sliding door 2a opens approximately 50 cm wide, and the height determined by the sensor unit 40 is compared with the height H = 50 stored for the robot. The determined height must be within the range that matches the stored robot height; that is, it must be confirmed that it is indeed a robot. Instead of a specific height H, in one embodiment, a height range may be given in the table for one or more (all) authorizations. Those skilled in the art will recognize that the values ​​given in the table are exemplary and may differ from actual values.

[0058] User Profile Number object ID W(cm) H(cm) 1 name 12 70 185 2 cat 34 12 30 3 dog 56 25 50 4 robot 78 50 50

[0059] If, for example, the determined height H for a pet is not the expected 50cm H but 180cm, the aforementioned reasonableness check can be used to identify the pet and accompanying personnel passing through the open sliding door 2a. For example, an unauthorized person might remove the pet's authorization credentials (e.g., RFID tags) in an attempt to gain access there. Similarly, the expected height H of 170cm does not match the determined height H of 100cm. This could happen, for example, if a child uses a parent's authorization credentials. Even though the child is authorized to access, the parent might not want to use the child's authorization credentials.

[0060] By understanding the above-mentioned fundamental system components and their functions, the following will be combined with... Figure 4 from Figure 1 and Figure 2 Starting from the situation shown, an exemplary method for running access monitoring system 1 is described. Referring to the situation in public area 34 ( Figure 2 The description focuses on object 20 (the robot) that moves towards sliding door 2a to enter the restricted access area 36. Object 20 is located here... Figure 1 The access area Z3 is shown in the diagram. The radio device 46 of object 20, for example, uses Bluetooth technology and is activated. Figure 4 The method shown in the figure begins in step S1 and ends in step S9. Those skilled in the art will recognize that the division of these steps is exemplary, and one or more of these steps may be divided into one or more sub-steps, or multiple of these steps may be combined into one step.

[0061] In step S2, the identification device 6 detects the authorization credentials of object 20 in the access area Z3 located in front of sliding door 2a. The authorization credentials exist, for example, as an access code, which is transmitted via a wireless device (e.g., Bluetooth technology). In step S3, the control device 24 checks whether user information has been set for the authorization credentials in the database in storage device 26. If the check determines that object 20 is authorized to access, the method proceeds along the "yes" branch to step S4. However, if object 20 is not authorized to access, the method proceeds along the "no" branch to step S9, where it terminates; building door 2a remains locked and closed.

[0062] In step S4, sensor system 8 is activated, particularly for generating and analyzing image photographs. Those skilled in the art will recognize that sensor system 8 may already be activated according to another embodiment. In this case, step S4 may be omitted. Sensor system 8 may be continuously activated, for example, for general monitoring purposes, and image photographs may be continuously evaluated therein. In another embodiment, sensor system 8 may be activated, for example, when motion is detected at floors L0, L1 by an external motion sensor or by sensor system 8 itself, which identifies and reacts to changes in image photographs as motion.

[0063] In step S5, the sensor system 8 may, for example, evaluate an image photograph of the access area Z3 to determine whether a person 4 is present in the access area Z3. Devices and algorithms used for evaluating the image photograph, such as for identifying, counting, and possibly authenticating people and / or objects, are known to those skilled in the art. If the check concludes that no person 4 is present and therefore the situation in front of the sliding door 2a is considered safe, the method proceeds along the no branch to step S6.

[0064] In step S6, access is granted to object 20. To this end, the closing device 50 is operated to unlock and open the sliding door 2a. As described above, the opening is automatic without the need for action of object 20. In one embodiment, the sliding door 2a is opened only to the extent determined in the user profile for object 20 (the robot).

[0065] If the check in step S5 determines that person 4 is remaining in access area Z3, this situation is considered unsafe in front of sliding door 2a. Person 4 present may be a potential hazard because they could illegally enter restricted access area 36 through sliding door 2a, which is open for object 20. Since object 20 is not alone in front of sliding door 2a, the method proceeds along the "yes" branch to step S7.

[0066] In step S7, a warning signal is generated. For example, a warning signal is generated by the control device 24 when the sliding door 2a is opened for the authorized access object 20 and a person 4 is also detected in the presence.

[0067] In step S8, access is blocked by the sliding door system 2. Access is blocked in response to a warning signal received by the sliding door system 2. In one embodiment, the sliding door 2a remains locked and closed; this may be the case when person 4 is detected before the sliding door 2a is opened for object 20. It is also possible that person 4 enters the access area Z3 and is only detected when the sliding door 2a has been unlocked and opened more or less to a certain extent. In one embodiment, in this case, opening can be stopped, and further opening of the sliding door 2a can be prevented. Blocking access may also include closing the sliding door 2a from a fully or partially open position. In another embodiment, the sliding door 2a can be moved fully or partially to a closed position; this is especially true when object 20 is already in the passage area 42 and obstructing the track of the sliding door 2a. In this case, an alarm may be triggered.

[0068] In the access monitoring system 1, a set of rules can be defined that specifies whether an action should be triggered after such an alarm and which action should be triggered. These actions can be situation-specific, i.e., depending on the time (daytime or nighttime) and the date (weekday or weekend, holiday). Exemplary actions could be: audible and / or visually perceptible alarms (sirens, warning lights), automatic notifications to security personnel (police or private security services), and automatic notifications to personnel responsible for access to restricted areas 36 (tenants, owners, building managers, etc.). Those skilled in the art will recognize that these actions can also be combined.

[0069] In the illustrated embodiment, the method continues from step S8 to step S9 and ends there.

[0070] Refer again Figures 3A to 3C The position of the sliding door 2a is shown. Now, an embodiment of the sliding door system 2 will be introduced. Figures 3A to 3C Schematic top views of the sliding door system 2 are shown. In each of these top views, the components included in the sliding door 2a are depicted: sensor unit 40(S), processor unit 54(DC), and closing device 50(M); for illustrative purposes, interface device 48 and its connection to the building management system 22 are not shown. The closing device 50 and processor unit 54 are arranged within the sliding door 2a, particularly between the door panels 32. Figures 3A to 3C The image also shows a shell region 30 with a structure for accommodating a sliding door 2a in the open position.

[0071] Sensor unit 40 is arranged on the end side. This arrangement is chosen so that electromagnetic radiation (light waves or radio waves) can propagate unimpeded in the direction of channel region 42 during operation. Sensor unit 40 can, for example, be inserted into a recess on the end side and protected from damage and contamination by a radiant cover. Sensor unit 40 can also be arranged at the door frame. Electrical connection 58 between sensor unit 40 and processor unit 54 ( Figure 2 ) and electrical connector 52 ( Figure 2 It extends within the sliding door 2a, for example, between the door panels 32.

[0072] The embodiment of the sliding door 2a shown is based on a principle similar to that known from EP2876241A1. EP2876241A1 describes a sliding door system in which two opposing door panels are coupled to an actuator that moves the door panels toward or away from each other. Regarding the sliding door system 2 according to the technology described herein, this means that in the closed position of the sliding door 2a, the two door panels 32 have a door panel distance d1. In this position, the sliding door 2a is locked. During the opening of the sliding door 2a, the two door panels 32 are moved by the actuator 31 (… Figures 3A to 3C The sliding door 2a moves toward each other to a certain extent, such that the door panels have a door panel spacing d2, the size of which is determined such that the sliding door 2a, in its fully or partially open position, ( Figure 3B and Figure 3C The sliding door has a sufficiently small thickness so that it fits into the receiving structure of the wall shell region 30. Here, the door leaf spacing d1 is greater than the door leaf spacing d2. In this position, the sliding door 2a is unlocked. When the sliding door 2a is pushed out of the wall shell region 30, the two door leaves 32 move away from each other (open), so that the sliding door 2a is in the closed state ( Figure 3A The thickness is determined such that the outer sides of the two door panels 32, in the closed position, terminate substantially flush with the outer side of the wall shell region 30 or its lining. This results in a substantially smooth finish on the two wall sides of the door region.

[0073] In one embodiment, the sliding door system 2 has a guide device on the door beam that supports the sliding door 2a and guides the sliding door along a travel path between the closed and open positions. For this purpose, the sliding door 2a has a complementary device at its upper edge. When the closing device 50 moves the sliding door 2a via the drive unit and acts on the complementary device, the guide device and the complementary device can, for example, constitute a system with a telescopic pull-out member. The drive unit can, for example, include a motor-driven or pneumatic sliding actuator that acts on the telescopic pull-out member.

[0074] In one embodiment, the two door panels 32 move toward or away from each other via an actuator 31. The actuator 31 may include a spreading device that is mechanically, electrically, or electromechanically activated. The spreading device is designed to move the door panels 32 toward each other when the sliding door 2a is to be opened, and to move the door panels away from each other when the sliding door 2a is to be closed. Those skilled in the art will recognize that alternative spreading devices may be provided, such as cylinders operated by a pressure medium.

Claims

1. A system (1) for monitoring access to a building and / or access to restricted areas (36) within a building, the system comprising: A building door system (2) having a building door (2a), an electronic closing device (50), and an identification device (6) for detecting the authorization credentials of an object (20), wherein the building door (2a) can be unlocked by the electronic closing device (50) when the authorization credentials are valid and moved from a closed position to an open position so as to allow the object (20) to access the building door (2a); Sensor system (8), configured to monitor access areas (Z1, Z2, Z3) and detect personnel (4) remaining in the access areas (Z1, Z2, Z3), the access areas including a designated access range to a building door (2a); and A control device (24) is communicatively connected to a building door system (2) and a sensor system (8), and is electrically connected to a storage device (26). The control device (24) is configured to generate a warning signal when the building door system (2) permits access by an object (20) and the sensor system (8) detects a person (4) in the access area (Z1, Z2, Z3). Upon receiving the warning signal, the building door system (2) prevents access from being permitted. The vertical height of the object (20) is stored in the storage device (26). The building door system (2) further includes a sensor unit (40) configured to detect the vertical height of an object (20). When the building door system (2) allows the object (20) to access and the vertical height of the object (20) detected by the sensor unit (40) does not match or is outside the acceptable range of the vertical height of the object (20) stored in the storage device (26), the control device generates a warning signal, and the building door system (2) prevents access from being granted upon receiving the warning signal.

2. The system (1) according to claim 1, wherein, The identification device (6) is arranged on or around the building door (2a).

3. The system (1) according to claim 2, wherein, The closing device (50) and the identification device (6) are installed on the building door (2a).

4. The system (1) according to claim 1 or 2, wherein, The identification device (6) includes: Devices for transmitting and receiving radio signals (56). Devices used for detecting biometric features Detection equipment for optical coding Reading devices for magnetic stripe cards or chip cards, and / or A keyboard or touchscreen for manual password input.

5. The system (1) according to any one of claims 1-3, wherein, The sensor system (8) includes a camera and is configured to evaluate images captured by the camera in order to detect personnel (4) remaining in the access areas (Z1, Z2, Z3).

6. The system (1) according to claim 5, wherein, The camera may be a 2D camera or a 3D camera.

7. The system (1) according to claim 6, wherein, The 3D camera includes a time-of-flight camera.

8. The system (1) according to any one of claims 1-3, wherein, The building door system (2) includes a sliding door, a door frame (44) having a passage area (42) and a wall shell area (30) that at least partially accommodates the sliding door in the open position, and the sliding door having an end side pointing toward the passage area (42) in the open position.

9. The system (1) according to claim 8, wherein, The sliding door includes an actuator (31) designed to position the door leaf (32) of the sliding door in a first position having a first door leaf spacing (d1) in a closed position of the sliding door, and to position the door leaf of the sliding door in a second position having a second door leaf spacing (d2) in an open position of the sliding door, wherein the first door leaf spacing (d1) is greater than the second door leaf spacing (d2).

10. The system (1) according to any one of claims 1-3, the system further comprising an interface device (48) arranged on a building door (2a) and designed to send data to and / or receive data from the building management system (22).

11. The system (1) according to any one of claims 1-3, wherein, The control device (24) is configured to determine, in the storage device (26) a data set in which the authorization credential corresponds to the access authorization, in the case of a valid authorization credential for the object (20).

12. A method for operating a system (1) for monitoring access to a building and / or restricted areas (36) within a building, wherein, The system (1) includes: a building door system (2), a sensor system (8), and a control device (24). The building door system has a building door (2a), an electronic closing device (50), and an identification device (6) for detecting the authorization credentials of an object (20). The sensor system is used to monitor access areas (Z1, Z2, Z3), which include a designated access range for the building door (2a). The control device is communicatively connected to the building door system (2) and the sensor system (8), and the control device (24) is electrically connected to a storage device (26). The method includes: While the object (20) is in the access area (Z1, Z2, Z3) of the building door (2a), the authorization credentials of the object (20) are detected by means of the identification device (6), wherein the building door (2a) can be unlocked and moved from the closed position to the open position with a valid authorization credential, so as to allow the object (20) to access the building door (2a); The sensor system (8) detects whether any person (4) is staying in the access area (Z1, Z2, Z3); When the building door system (2) permits an object (20) to access the building door (2a) and the sensor system (8) detects a person (4) in the access area (Z1, Z2, Z3), a warning signal is generated by the control device (24); and Upon receiving the warning signal through the building door system (2), the building door system (2) prevents access from being permitted at the building door (2a). The vertical height of the object (20) is stored in the storage device (26). The building door system (2) further includes a sensor unit (40) that detects the vertical height of the object (20). When the building door system (2) allows the object (20) to access the building and the vertical height of the object (20) detected by the sensor unit (40) does not match or is not within an acceptable range of the vertical height of the object (20) stored in the storage device (26), a warning signal is generated by the control device. When the warning signal is received by the building door system (2), the building door system (2) prevents access from being permitted at the building door (2a).

13. The method according to claim 12, wherein, Preventing access includes blocking the building door (2a) in the closed position.

14. The method according to claim 12, wherein, Preventing access includes blocking a building door (2a) in a partially open position.

15. The method according to claim 12, wherein, Preventing access includes closing a building door (2a) from a fully or partially open position, the fully open position being determined for the object (20).

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