Apparatus and methods for controlling access to a restricted area by an access control device includes obtaining a first image using a first sensor mounted at a first location. A second image is obtained using a second sensor mounted at a location different from a location of the first sensor. The second image is processed, using the second sensor, to obtain information regarding the detected objects in the second image. The information regarding the detected objects is sent from the second sensor to the first sensor. The first sensor compares the received information with a number of objects detected using the first image. A tailgating event is identified, in response to determining that the number of objects detected using the first image does not match the information regarding the number of objects detected using the second image. A tailgating notification is outputted, by the first sensor, indicating a tailgating event.

A human-machine interface device can be arranged on a building. The device can include a communication device, a recording device, an optical projection module and a control device. The communication device sends and receives data signals via a communication network, and the recording device records data relating to a user. The control device is configured to transmit user data recorded by the recording device to a control system of a building system and to control the optical projection module based on routing information. The optical projection module is configured to project routing information relating to the user and visible to the user onto a projection surface.

An interlock includes an entrance and an exit as well as an inner region arranged between the entrance and the exit. The interlock has a body scanner and a separation sensor, wherein the separation sensor is configured to measure the number of people in the inner region of the interlock, and the body scanner is configured to scan a body of a person in the inner region of the interlock.

An interlock includes an entrance and an exit as well as an inner region arranged between the entrance and the exit. The interlock has a body scanner and a separation sensor, wherein the separation sensor is configured to measure the number of people in the inner region of the interlock, and the body scanner is configured to scan a body of a person in the inner region of the interlock.

The present disclosure relates to an intelligent prevention passage control system for an electronic device, which comprises a detection device for an electronic device, a traffic control device integrated with the detection device for the electronic device, an industrial control host, a server, an access controller and a management terminal inside the traffic control device, The present disclosure can more accurately judge violations by scoring violations, and can make the system more intelligent by accurately judging violations, thus realizing no manual attendance, solving the problems of personnel recruitment, shift attendance and personnel management, and saving a lot of labor cost. At the same time, the system can avoid the hidden dangers caused by human feelings. sense of responsibility and inertia brought b manual prevention, and ensure the consistent, accurate and reliable standards of detection work.

An access control system includes: at least one gate device and a control unit. The control unit is configured to: control the at least one gate device to operate in a first operation mode, in which the gate device is arranged to allow access for the users via the gate device only from a first access direction, detect that a traffic flow of the users meets a predefined capacity limit, and control at least one gate device to change to operate in a second operation mode, in which the gate device is arranged to allow access for the users via the gate device from the first access direction and from the second access direction. The invention relates also to a method for controlling an access control system.

A method for controlling a gate device in connection with at least one gate and two frameworks connected to the at least one gate is provided. The method may include identifying an authorization status of an object. The method may include detecting pressure signals caused by the object at a first moment, if the authorization status is satisfied. The method may include determining whether or not an illegal tailgating event occurred based on the pressure signals. The method may further include generating a control signal for opening the at least one gate to facilitate the object to pass through the at least one gate in response to a determination that the illegal tailgating event did not occur.

A method for controlling a gate device in connection with at least one gate and two frameworks connected to the at least one gate is provided. The method may include identifying an authorization status of an object. The method may include detecting pressure signals caused by the object at a first moment, if the authorization status is satisfied. The method may include determining whether or not an illegal tailgating event occurred based on the pressure signals. The method may further include generating a control signal for opening the at least one gate to facilitate the object to pass through the at least one gate in response to a determination that the illegal tailgating event did not occur.

An access gate for controlling access of individuals passing through a passageway to an access controlled area comprises a cabinet, bordering the passageway, and a movable barrier, attached to the cabinet and configured to open or close access through the passageway. The access gate further comprises a detector having a detection zone directed to a ground of the passageway. Capturing measurement data of individuals approaching the movable barrier is thereby limited to lower body extremities, including feet of the individuals approaching the movable barrier. An electronic circuit is connected to the detector and configured to determine from the measurement data received from the detector information related to the feet of the individuals approaching the movable barrier, and to detect tailgating of the individuals passing through the passageway, using the feet information.

An access gate for controlling access of individuals passing through a passageway to an access controlled area comprises a cabinet, bordering the passageway, and a movable barrier, attached to the cabinet and configured to open or close access through the passageway. The access gate further comprises a detector having a detection zone directed to a ground of the passageway. Capturing measurement data of individuals approaching the movable barrier is thereby limited to lower body extremities, including feet of the individuals approaching the movable barrier. An electronic circuit is connected to the detector and configured to determine from the measurement data received from the detector information related to the feet of the individuals approaching the movable barrier, and to detect tailgating of the individuals passing through the passageway, using the feet information.