Traffic control device and traffic control method

Abstract

A traffic control apparatus is provided. The device comprises gate equipment, a detector and a controller. The gate equipment is used for allowing pedestrians meeting preset conditions to enter and exit the radiation area; the detector is used for detecting the number of pedestrians entering and exiting the radiation area each time; the controller comprises a control board card, and the control board card is used for receiving a detection result of the detector so as to count the number of pedestrians in the radiation area; wherein the control board card is configured to be electrically connected with safety interlocking equipment in the radiation area, and the control board card is further used for enabling the safety interlocking equipment to be in a specific state for indicating beam emission when no one is in the radiation area. The invention further provides a traffic control method.

Description

Technical Field

[0001] The present disclosure relates to the field of radiation protection, the field of access control or other fields, and more specifically, to a access control device and a access control method. Background Art

[0002] In order to protect the safety of personnel in high-risk radiation workplaces and reduce the risk of radiation accidents / incidents, equipment and personnel management are generally carried out in accordance with the requirements of relevant radiation safety and protection standards.

[0003] At present, the entrances to the radiation areas of some radiation laboratories or factories generally rely on manual control by safety personnel, or are equipped with ordinary gates. Therefore, they now rely on manual judgment to determine whether the radiation area is empty and whether the beam can be emitted. This requires safety personnel to manually check the authority and number of people entering and leaving the radiation area, so the safety personnel's attention is also high. The safety personnel's mental state, emotions, and sense of responsibility may also affect the inspection results, and there is a risk of missed inspections. For example, the entrances to the radiation area are designed with mazes and protective doors to ensure safety, which makes it easy for relevant personnel to be blocked by the maze, making it inconvenient for safety personnel to confirm whether there is no one in the area and whether the beam can be emitted, which may lead to radiation accidents / incidents. Summary of the invention

[0004] In view of the above problems, the present disclosure provides a traffic control device and a traffic control method.

[0005] According to one aspect of the present disclosure, there is provided a traffic control device, characterized in that it includes: a gate device for allowing pedestrians who meet preset conditions to enter and exit a radiation area; a detector for detecting the number of pedestrians entering and exiting the radiation area each time; a controller including a control board, wherein the control board is used to receive the detection result of the detector to count the number of pedestrians in the radiation area; wherein the control board is configured to be electrically connected to a safety interlock device of the radiation area, and the control board is also used to place the safety interlock device in a specific state for indicating beam emission when no one is in the radiation area.

[0006] In some embodiments, the controller also includes: a safety relay, which is electrically connected to the control board and the safety circuit of the radiation area, respectively, wherein the safety interlock device is electrically connected to the safety circuit; when there is no one in the radiation area, the safety relay is used to respond to the signal of the control board and place the safety interlock device in the specific state through the safety circuit.

[0007] In some embodiments, the access control device also includes: a first face recognition module, electrically connected to the control board, the first face recognition module includes a first camera, used to photograph the faces of pedestrians entering the radiation area through the gate device; and / or, a second face recognition module, electrically connected to the control board, the second face recognition module includes a second camera, used to photograph the faces of pedestrians leaving the radiation area through the gate device.

[0008] In some embodiments, the detector includes: a first sensor module installed on the gate device, used to detect the number of pedestrians entering the radiation area each time; and / or, a second sensor module installed on the gate device, used to detect the number of pedestrians leaving the radiation area each time.

[0009] In some embodiments, the gate device includes: a first gate electrically connected to the control board; a second gate electrically connected to the control board, and a channel is defined between the second gate and the first gate.

[0010] In some embodiments, the detector includes: a first camera, including a third camera and a first chip; wherein the third camera is used to capture images within the channel, and the first chip is used to process the image to detect the number of pedestrians entering and exiting the radiation area each time.

[0011] In some embodiments, the traffic control device also includes: a first radar module, electrically connected to the control board, for detecting the position of pedestrians each time they are about to enter the radiation area; and / or, a second radar module, electrically connected to the control board, for detecting the position of pedestrians each time they are about to leave the radiation area.

[0012] In some embodiments, the first radar module is installed on the first gate. When the first radar module detects that a pedestrian to enter the radiation area has arrived at a first position, the control board is used to respond to a signal from the first radar module to enable the first gate to open the gate.

[0013] In some embodiments, after a pedestrian to be entering the radiation area enters the channel via the first gate, when the recognition result of the first face recognition module is pass, the control board is used to control the gate of the second gate to open and increase the number of pedestrians in the radiation area.

[0014] In some embodiments, when the recognition result of the first face recognition module is passed and the detector detects that the number of pedestrians in the channel is 1, the control board is used to control the gate of the second gate to open and increase the number of pedestrians counted in the radiation area by 1.

[0015] In some embodiments, the second radar module is installed on the second gate. When the second radar module detects that a pedestrian who is about to leave the radiation area has arrived at a second position, the control board is used to respond to a signal from the second radar module to enable the second gate to open the gate.

[0016] In some embodiments, after a pedestrian to leave the radiation area enters the channel via the second gate, when the recognition result of the second face recognition module is pass, the control board is used to control the gate of the first gate to open and reduce the number of pedestrians in the radiation area.

[0017] In some embodiments, when the recognition result of the second face recognition module is passed and the detector detects that the number of pedestrians in the channel is 1, the control board is used to control the gate of the first gate to open and reduce the counted number of pedestrians in the radiation area by 1.

[0018] In some embodiments, the gate device consists of a third gate, and the third gate is electrically connected to the control board.

[0019] In some embodiments, the detector includes: a second camera, including a fourth camera and a second chip, wherein the fourth camera is used to capture a first side image of the third gate, and the second chip is used to process the first side image to detect the number of pedestrians entering the radiation area each time; a third camera, including a fifth camera and a third chip, wherein the fifth camera is used to capture a second side image of the third gate, and the third chip is used to process the second side image to detect the number of pedestrians leaving the radiation area each time, wherein the first side of the third gate is farther away from the radiation area than the second side.

[0020] In some embodiments, the detector includes: a fourth camera, including a sixth camera and a fourth chip, and is rotatably mounted on the third gate; when the fourth camera rotates to a first orientation, the sixth camera is used to capture a first side image of the third gate, and the fourth chip is used to process the first side image to detect the number of pedestrians entering the radiation area each time; when the fourth camera rotates to a second orientation, the sixth camera is used to capture a second side image of the third gate, and the fourth chip is used to process the second side image to detect the number of pedestrians leaving the radiation area each time, wherein the first side of the third gate is farther away from the radiation area than the second side.

[0021] In some embodiments, the traffic control device further includes: a reset key switch electrically connected to the control board, wherein when the reset key switch is turned, the control board resets the number of pedestrians in the radiation area.

[0022] In some embodiments, when no one is present in the radiation area and the reset key switch is turned, the safety relay is configured to respond to a signal from the control board and place the safety interlock device in the specific state through the safety circuit.

[0023] Another aspect of the disclosed embodiment provides a traffic control method, including: enabling a gate device to allow pedestrians who meet preset conditions to enter and exit a radiation area; enabling a detector to detect the number of pedestrians entering and exiting the radiation area each time; enabling a control board of a controller to receive the detection result of the detector to count the number of pedestrians in the radiation area; when there is no one in the radiation area, using the control board to place a safety interlock device in the radiation area in a specific state for indicating beam emission, wherein the control board is electrically connected to the safety interlock device.

[0024] One or more of the above embodiments have the following beneficial effects: the control board is electrically connected to the safety interlock device of the radiation area, realizing the linkage between access control and safety interlock, ensuring that beam emission is allowed only when no one is in the radiation area, thereby significantly improving the reliability and safety of radiation protection. In addition, the detector can accurately detect the number of pedestrians entering and leaving the radiation area each time, and the gate equipment and the control board can realize automatic access control and automatic counting of the number of people in the radiation area, which can reduce the dependence on manual labor and effectively reduce the radiation risk caused by human negligence. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above contents and other objects, features and advantages of the present disclosure will become more apparent through the following description of the embodiments of the present disclosure with reference to the accompanying drawings, in which:

[0026] Figure 1 The structure diagram of the traffic control device according to the embodiment of the present disclosure is schematically shown;

[0027] Figure 2 A schematic diagram of a scene including a traffic control device and a radiation area from a top-down perspective according to an embodiment of the present disclosure is shown;

[0028] Figure 3 A schematic diagram of a scene including a traffic control device and a radiation area from a top-down perspective according to another embodiment of the present disclosure is shown;

[0029] Figure 4 A schematic diagram of a scene including a traffic control device and a radiation area from a top-down perspective according to another embodiment of the present disclosure is shown;

[0030] Figure 5 Schematically illustrates an embodiment of the present disclosure Figure 1 Control system topology diagram of the traffic control device in the middle;

[0031] Figure 6 The electrical principle diagram of the alarm function of the traffic control device according to the embodiment of the present disclosure is schematically shown;

[0032] Figure 7 Schematically shows an electrical schematic diagram involving a safety relay according to an embodiment of the present disclosure;

[0033] Figure 8 A flow chart of a traffic control method according to an embodiment of the present disclosure is schematically shown;

[0034] Fig. 9 A flow chart of a traffic control method according to another embodiment of the present disclosure is schematically shown.

[0035] The reference numerals related to the above drawings are as follows:

[0036] 100. Access control device;

[0037] 110. Gate equipment; 111. First gate; 112. Second gate; 113. Partition;

[0038] 120, detector; 121, first sensor module; 1211, first photoelectric sensor; 1212, second photoelectric sensor; 122, second sensor module; 1221, third photoelectric sensor; 1222, fourth photoelectric sensor; 123, first camera;

[0039] 131. A first radar module; 132. A second radar module;

[0040] 141. A first face recognition module; 142. A second face recognition module;

[0041] 150. Clear the key switch;

[0042] 161. First indicator light; 162. Second indicator light.

[0043] It should be noted that, for the sake of clarity, in the drawings used to describe the embodiments of the present disclosure, the sizes of the overall / local structures or the overall / local areas may be enlarged or reduced, that is, these drawings are not drawn according to the actual scale. DETAILED DESCRIPTION

[0044] Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. However, it should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present disclosure. In the following detailed description, for ease of explanation, many specific details are set forth to provide a comprehensive understanding of the embodiments of the present disclosure. However, it is apparent that one or more embodiments may also be implemented without these specific details. In addition, in the following description, descriptions of known structures and technologies are omitted to avoid unnecessary confusion of the concepts of the present disclosure.

[0045] In the related technology, the entrance to the radiation area (such as the radiation protection area) currently generally relies on manual control by safety personnel, or is equipped with ordinary gates, which can only control the authority of the passers-by, cannot accurately detect the number of people and the situation of tailing, cannot calculate the number of people entering the nuclear radiation protection area, and cannot be linked with the safety interlock of the laboratory. Specifically, if the radiation safety issues in the radiation beam outflow area rely solely on manual control, the safety personnel need to devote a lot of energy to inspection and supervision, and the existing equipment does not have an accurate counting function and cannot assist the work of the safety personnel. Radiation areas are equipped with safety interlock functions in accordance with national requirements. If the interlocks are not fully confirmed to be ready, the beam outflow test cannot be carried out; the existing equipment does not have the function of interconnecting with the safety interlock, and safety control cannot be performed through the gate channel.

[0046] Some embodiments of the present disclosure provide access control devices. The control board is electrically connected to the safety interlock device of the radiation area, realizing the linkage between access control and safety interlock, ensuring that beam emission is allowed only when no one is in the radiation area, thereby significantly improving the reliability and safety of radiation protection. In addition, the use of detectors can accurately detect the number of pedestrians entering and leaving the radiation area each time, and the combination of gate equipment and control boards can realize automated access control and automatic counting of the number of people in the radiation area, which can reduce dependence on manual labor and effectively reduce the risk of radiation caused by human negligence.

[0047] Figure 1 The structure diagram of the traffic control device according to the embodiment of the present disclosure is schematically shown. Figure 2 A scene diagram including a traffic control device and a radiation area from a top-down angle according to an embodiment of the present disclosure is schematically shown.

[0048] It should be noted that Figure 1 and Figure 2 What is shown are merely examples to which the embodiments of the present disclosure may be applied, in order to help those skilled in the art understand the technical content of the present disclosure, but it does not mean that the embodiments of the present disclosure may not include other devices, systems or structures.

[0049] like Figure 1 and Figure 2As shown, the access control device 100 according to this embodiment may include a gate device 110, a detector 120 and a controller (not shown in the figure). The gate device 110 is used to allow pedestrians who meet preset conditions to enter and exit the radiation area. The detector 120 is used to detect the number of pedestrians entering and exiting the radiation area each time. The controller includes a control board, wherein the control board is used to receive the detection result of the detector 120 to count the number of pedestrians in the radiation area. Among them, the control board is configured to be electrically connected to the safety interlock device of the radiation area, and the control board is also used to place the safety interlock device in a specific state for indicating beam emission when there is no one in the radiation area.

[0050] Exemplarily, the gate device 110 includes at least one set of fixings, each set of fixings includes two fixings arranged opposite to each other, and each fixing is provided with a gate that can be rotatably connected. As an access control device, the gate device 110 can determine whether the preset conditions are met through authority verification, and allow pedestrians to enter and exit the radiation area after the authority verification is passed.

[0051] For example, if an electron accelerator is arranged in a radiation area, radiation hazards will be generated when the electron accelerator is in operation. If no control and protection are taken, radiation hazards will be caused to the surrounding personnel and environment. Most of the radiation is shielded by effective shielding, but changes in operating conditions may also cause radiation to leak into the environment outside the shielding body. When the radiation dose is greater than a certain value, a radiation accident / incident will occur. Therefore, the radiation area can be defined based on the emission position of the radiation beam and the surrounding radiation dose. Taking the nuclear radiation protection area of ​​a nuclear radiation laboratory or factory as an example, the radiation area can include the X-ray machine and the radiation shielding mechanism around it.

[0052] Exemplarily, the detector 120 may include a through-beam infrared sensor, which blocks the transmission of infrared rays when pedestrians pass by, thereby triggering the sensor to detect the entry and exit of pedestrians, for example, determining the number of pedestrians based on the number of pedestrian triggers.

[0053] Exemplarily, the detector 120 may include a pressure sensor, for example, a pressure sensor is laid at the entrance and exit of the radiation area, when a pedestrian steps on the sensor, the sensor detects a pressure change, thereby identifying the pedestrian's entry and exit. The number of pedestrians is determined based on the number of pressure changes.

[0054] Exemplarily, the detector 120 may include a camera, identify pedestrians in an image through a video analysis algorithm, determine their entry and exit status by analyzing their movement trajectories, and determine the number of pedestrians by identifying their torsos or heads.

[0055] Exemplarily, the detector 120 may include an RFID reader, which is set at the entrance and exit of the radiation area. Pedestrians carry RFID tags. When the tags enter the sensing range of the reader, the reader identifies and records the entry and exit of pedestrians and the number of pedestrians.

[0056] Exemplarily, the detector 120 may include a laser scanner. When a pedestrian passes by, the laser is blocked, thereby triggering the laser scanner to detect the entry and exit of the pedestrian. For example, the number of pedestrians is determined based on the number of pedestrian triggers.

[0057] It is understandable that the detector 120 can be implemented based on existing devices, and may include one or more of the devices listed above, and may also include devices not listed.

[0058] Exemplarily, the control board is responsible for processing input signals and outputting control instructions. For example, the Nuctech product: ST control board JGEA0000000-0021 can be used.

[0059] The safety interlock device includes a plurality of safety interlock components, for example, the radiation area is reasonably divided, and an independent safety interlock component is installed for each area. The radiation area can be divided into a plurality of independent partitions, and a corresponding interlock control logic is configured for each partition. The access control device 100 can control the safety interlock components of one or more partitions, for example, when there are people in the radiation area, all safety interlock components are placed in an open state. When there is no one in the radiation area, all safety interlock components are placed in a closed state, and only then is the beam emission allowed. The beam can be an electron beam, which generates rays, such as X-rays, after hitting the target.

[0060] For example, the control board has an algorithm programmed inside, which can analyze the detector 120 signal and count the real-time number of pedestrians in the radiation area, for example, if one person enters, the number increases by 1, and if one person leaves, the number decreases by 1. In addition, the control board is connected to the safety interlock device through an electrical interface, and can send control instructions. For example, when the control board detects that there is no one in the radiation area, it sends a signal to the safety interlock device to put it in a closed state that allows beam emission.

[0061] According to the embodiment of the present disclosure, the control board is electrically connected to the safety interlock device of the radiation area, realizing the linkage between access control and safety interlock, ensuring that beam emission is allowed only when no one is in the radiation area, thereby significantly improving the reliability and safety of radiation protection. In addition, the detector 120 can accurately detect the number of pedestrians entering and leaving the radiation area each time, and the gate device 110 and the control board can realize automatic access control and automatic counting of the number of people in the radiation area, which can reduce the dependence on manual labor and effectively reduce the radiation risk caused by human negligence.

[0062] In some embodiments, reference Figure 1 and Figure 2 The gate device 110 includes a first gate 111 and a second gate 112. The first gate 111 is electrically connected to the control board. The second gate 112 is electrically connected to the control board, and a passage is defined between the second gate 112 and the first gate 111.

[0063] The first gate 111 is a set of fixing parts, and the second gate 112 is another set of fixing parts, and the two gates are arranged opposite to each other. Partitions 113 are installed on both sides of the passage, and the partitions 113 on both sides and the gates of the first gate 111 and the gates of the second gate 112 form a closed passage. When pedestrians who do not have permission enter the passage, the gates can be closed to keep them in the passage, which is convenient for subsequent processing.

[0064] According to the embodiments of the present disclosure, the passage provides a clear in and out path for pedestrians, allowing the in and out personnel to flow in an orderly manner, effectively avoiding the occurrence of congestion and chaos. At the same time, by controlling the gates set at both ends of the passage, the in and out personnel can be accurately managed, and the implementation of safety measures can be strengthened. In addition, the passage is used to limit the number of people passing through each time, making the statistics of the number of people entering and leaving more accurate.

[0065] In some embodiments, reference Figure 1 The detector 120 includes a first sensor module 121 and a second sensor module 122. The first sensor module 121 is installed in the gate device 110 to detect the number of pedestrians entering the radiation area each time. And / or, the second sensor module 122 is installed in the gate device 110 to detect the number of pedestrians leaving the radiation area each time.

[0066] For example, the first sensor module 121 may be installed on the first gate 111, and the second sensor module 122 may be installed on the second gate 112. The first sensor module 121 may include a first photoelectric sensor 1211 and a second photoelectric sensor 1212. Figure 1 , the first photoelectric sensor 1211 and the second photoelectric sensor 1212 are arranged in sequence relative to the channel, and can collect signals synchronously. If the first photoelectric sensor 1211 detects a pedestrian before the second photoelectric sensor 1212, and the signal time difference between the two is within a reasonable range, it can be considered that the pedestrian is not following. If the second sensor detects a pedestrian almost at the same time or later than the first sensor, it can be considered that there is a following behavior, that is, more than two people enter at the same time. The second sensor module 122 may include a third photoelectric sensor 1221 and a fourth photoelectric sensor 1222. Figure 1, the third photoelectric sensor 1221 and the fourth photoelectric sensor 1222. The relative channels are arranged in sequence, and signals can be collected synchronously. If the third photoelectric sensor 1221 detects the pedestrian before the fourth photoelectric sensor 1222, and the signal time difference between the two is within a reasonable range, it can be considered that the pedestrian is not following. If the third sensor detects the pedestrian almost at the same time or later than the fourth sensor, it can be considered that there is a following behavior, that is, more than two people leave at the same time. Following behavior may occur in the case where unauthorized personnel follow authorized personnel to enter the radiation area illegally, and it is not conducive to counting the number of people in the radiation area. Therefore, the first sensor module 121 and the second sensor module 122 can effectively detect the following behavior.

[0067] In some embodiments, reference Figure 1 The detector 120 includes a first camera 123, and the first camera 123 includes a third camera and a first chip. The third camera is used to capture images in the channel, and the first chip is used to process the images to detect the number of pedestrians entering and exiting the radiation area each time.

[0068] For example, the first camera 123 may use a product of Nuctech: Light Smart Camera F3241-E.

[0069] Exemplarily, the first camera 123 integrates a camera and a chip, and can be retrofitted and installed on an existing ordinary gate through a modular design. The first camera 123 itself can be used to complete photo taking, image processing and number detection, which has a low cost. The first camera 123 can be installed on the first gate 111 or the second gate 112 through a support rod, and can also be hoisted on the top, so that the third camera is above the channel. When someone is in the channel, it can capture images of pedestrians in the channel from a bird's-eye view. The first chip can run a target recognition algorithm to obtain a detection result by identifying the number of pedestrian heads in the image. For example, a deep learning model, such as an algorithm based on YOLO (You Only Look Once) or SSD (Single Shot MultiBox Detector), can be run in the first chip to quickly and accurately identify the heads of pedestrians in the image and count them.

[0070] In some embodiments, the first camera 123, the first sensor module 121 and the second sensor module 122 may all be electrically connected to the control board. The control board can combine the two types of number detection results to determine whether there is a following behavior.

[0071] In some embodiments, reference Figure 1The traffic control device 100 further includes a first radar module 131 and / or a second radar module 132. The first radar module 131 is electrically connected to the control board and is used to detect the position of pedestrians to enter the radiation area each time. The second radar module 132 is electrically connected to the control board and is used to detect the position of pedestrians to leave the radiation area each time.

[0072] The pedestrian position detected by the first radar module 131 and / or the second radar module 132 can be transmitted to the control board, which controls the first camera 123 to start detection based on the pedestrian position information, and can also verify the detection result of the first camera 123.

[0073] In some embodiments, reference Figure 1 and Figure 2 The passage control device 100 further includes a first face recognition module 141 and / or a second face recognition module 142. The first face recognition module 141 is electrically connected to the control board, and the first face recognition module 141 includes a first camera for photographing a person entering through the gate device 110 ( Figure 2 The second face recognition module 142 is electrically connected to the control board, and the second face recognition module 142 includes a second camera for photographing pedestrians leaving ( Figure 2 Pedestrian faces in the radiation area (reverse traffic).

[0074] like Figure 1 and Figure 2 As shown, the first face recognition module 141 can be installed on the second gate 112, and the first camera faces the first gate 111, that is, when pedestrians pass forward, it is convenient to capture the face, and then perform face recognition. The second face recognition module 142 can be installed on the first gate 111, and the second camera faces the second gate, that is, when pedestrians pass in the reverse direction, it is convenient to capture the face, and then perform face recognition.

[0075] Exemplarily, the first face recognition module 141 and / or the second face recognition module 142 may use Nuctech's product IA200-T1-P10 (Type-C).

[0076] In some embodiments, the first radar module 131 is installed on the first gate 111. When the first radar module 131 detects that the pedestrian to enter the radiation area has reached the first position, the control board is used to respond to the signal of the first radar module 131 to enable the first gate 111 to open the gate.

[0077] For example, the "first position" can be defined as an area 0.5 to 1 meter away from the entrance of the first gate 111, which is monitored by the first radar module 131. When a pedestrian enters the area, the first radar module 131 detects the presence of the pedestrian and transmits a signal to the control board. After receiving the signal, the control board sends a command to open the gate of the first gate 111 according to the preset control logic, allowing the pedestrian to enter the passage.

[0078] In some embodiments, after a pedestrian to be entered into the radiation area enters the passage through the first gate 111, when the recognition result of the first face recognition module 141 is passed, the control board is used to control the gate of the second gate 112 to open and increase the number of pedestrians in the radiation area.

[0079] Reference Figure 1 and Figure 2 , the first radar module 131 is installed at the first gate 111 at the forward entrance. When a pedestrian is detected to have reached a specific position in front of the gate, the control board responds to the signal, triggering the gate of the first gate 111 to open, allowing the pedestrian to enter the passage. After the pedestrian enters the passage, the gate of the first gate 111 is closed, and the first face recognition module 141 starts to detect the facial information of the pedestrian, compares it with the database, and verifies the identity and authority of the pedestrian. If the identity and authority verification is successful, the gate of the second gate 112 is opened, and the control board adds the corresponding number of people to the statistical value. If it fails, the gate of the first gate 111 will open, the gate of the second gate 112 will remain closed, and a warning and prompt message will be displayed on the screen of the first face recognition module 141, asking the pedestrian who failed the verification to leave.

[0080] In this embodiment, one or more pedestrians may be allowed to stay in the channel. In order to accurately count the number of pedestrians in the radiation area, it may be stipulated that only one pedestrian is allowed to stay in the channel. For example, in some embodiments, when the recognition result of the first face recognition module 141 is passed, and the number of pedestrians detected by the detector 120 in the channel is 1, the control board is used to control the gate of the second gate 112 to open, and the number of pedestrians in the radiation area counted is increased by 1.

[0081] That is, after a pedestrian enters the channel, the gate of the first gate machine 111 is closed. If the identity and authority verification is successful by the first face recognition module 141, and the first camera 123 detects no following behavior and there is only one person in the channel, the control board controls the gate of the second gate machine 112 to open, and increases the statistical value by 1, thereby accurately counting the number of people entering the radiation area.

[0082] In some embodiments, the second radar module 132 is installed on the second gate 112. When the second radar module 132 detects that the pedestrian to leave the radiation area has arrived at the second position, the control board is used to respond to the signal of the second radar module 132 to enable the second gate 112 to open the gate.

[0083] For example, the "second position" can be defined as an area 0.5 to 1 meter away from the entrance of the second gate 112, which is monitored by the second radar module 132. When a pedestrian enters the area, the second radar module 132 detects the presence of the pedestrian and transmits a signal to the control board. After receiving the signal, the control board sends a command to open the gate of the second gate 112 according to the preset control logic to allow the pedestrian to enter the passage.

[0084] In some embodiments, after a pedestrian to leave the radiation area enters the passage through the second gate 112, when the recognition result of the second face recognition module 142 is passed, the control board is used to control the gate of the first gate 111 to open and reduce the number of pedestrians in the radiation area.

[0085] Reference Figure 1 and Figure 2 , the second radar module 132 is installed at the second gate 112 at the reverse entrance. When a pedestrian is detected to have reached a specific position in front of the gate, the control board responds to the signal, triggering the gate of the second gate 112 to open, allowing the pedestrian to enter the passage. After the pedestrian enters the passage, the gate of the second gate 112 is closed, and the second face recognition module 142 starts to detect the facial information of the pedestrian, compares it with the database, and verifies the identity and authority of the pedestrian. If the identity and authority verification is successful, the gate of the first gate 111 opens, and the control board reduces the corresponding number of people in the statistical value. If it fails, the gate of the second gate 112 will open, the gate of the first gate 111 will remain closed, and the screen of the second face recognition module 142 will display warning and prompt information, asking the pedestrian who failed the verification to exit.

[0086] The situations where identity and authority verification fails during the reverse passage process may include: 1. The verification is successful through the first face recognition module 141, but the authority is temporarily disabled, the second face recognition module 142 does not capture a clear image, or the second face recognition module 142 recognizes incorrectly. 2. Illegal entry without successful verification by the first face recognition module 141.

[0087] In this embodiment, one or more pedestrians may be allowed to stay in the channel. In order to accurately count the number of pedestrians in the radiation area, it may be stipulated that only one pedestrian is allowed to stay in the channel. For example, in some embodiments, when the recognition result of the second face recognition module 142 is passed, and the number of pedestrians detected by the detector 120 in the channel is 1, the control board is used to control the gate of the first gate 111 to open, and the number of pedestrians in the radiation area counted is reduced by 1.

[0088] That is, after the pedestrian enters the channel, the gate of the second gate machine 112 is closed. If the identity and authority verification is successful by the second face recognition module 142, and the first camera 123 detects no following behavior and there is only one person in the channel, the control board controls the gate of the first gate machine 111 to open, and the statistical value is reduced by 1, thereby accurately counting the number of people leaving the radiation area, and finally combining the number of people entering and leaving the radiation area to count the number of pedestrians in the radiation area.

[0089] Figure 1 and Figure 2 The middle gate device 110 includes a first gate 111 and a second gate 112 . The passage control device 100 including the gate device 110 composed of a single third gate will be described below.

[0090] Figure 3 A scene diagram including a traffic control device 100 and a radiation area from a top-down angle according to another embodiment of the present disclosure is schematically shown.

[0091] In this embodiment, the access control device 100 according to this embodiment may include a gate device 110, a detector 120 and a controller (not shown in the figure). The gate device 110 is used to allow pedestrians who meet preset conditions to enter and exit the radiation area. The detector 120 is used to detect the number of pedestrians entering and exiting the radiation area each time. The controller includes a control board, wherein the control board is used to receive the detection result of the detector 120 to count the number of pedestrians in the radiation area. Among them, the control board is configured to be electrically connected to the safety interlock device of the radiation area, and the control board is also used to place the safety interlock device in a specific state for indicating beam emission when there is no one in the radiation area.

[0092] In some embodiments, Figure 3 As shown, the gate device 110 is composed of a third gate, and the third gate is electrically connected to the control board. Compared with the gate device 110 including two or more gates, Figure 3 The gate device 110 shown can reduce costs, reduce hardware and software complexity, and is easy to deploy.

[0093] In some embodiments, Figure 3As shown, the detector 120 includes a second camera and a third camera. The second camera includes a fourth camera and a second chip, wherein the fourth camera is used to capture a first side image of the third gate, and the second chip is used to process the first side image to detect the number of pedestrians entering the radiation area each time. The third camera includes a fifth camera and a third chip, wherein the fifth camera is used to capture a second side image of the third gate, and the third chip is used to process the second side image to detect the number of pedestrians leaving the radiation area each time, wherein the first side of the third gate is farther away from the radiation area than the second side.

[0094] For example, the second camera and the third camera can be installed on the third gate, and can also be hoisted on the top. The fourth camera can be located at Figure 3 The fifth camera may be located at the top of the first side area. Figure 3 The second or third camera can use Nuctech's product: Light Smart Camera F3241-E. The process of detecting the second and third chips is the same as that of the first chip above, so it will not be repeated here.

[0095] According to the embodiments of the present disclosure, a single gate cooperates with two cameras (the second camera and the third camera) and is controlled by a control board. This can achieve accurate detection of the number of pedestrians entering and exiting the radiation area each time, as well as accurate counting of the number of pedestrians in the radiation area, making it convenient to promptly place the safety interlock device in a specific state for indicating beam emission, thereby improving radiation protection safety.

[0096] Figure 3 The detector 120 includes a second camera and a third camera. The following describes an embodiment in which the detector 120 includes only a single fourth camera.

[0097] Figure 4 A scene diagram including a traffic control device 100 and a radiation area from a top-down angle according to another embodiment of the present disclosure is schematically shown. Figure 4 and Figure 3 The difference lies in the number of cameras included in the detector 120, as well as the hardware and software settings associated therewith.

[0098] In some embodiments, Figure 4 As shown, the detector 120 includes a fourth camera. The fourth camera includes a sixth camera and a fourth chip, and is rotatably mounted on the third gate. When the fourth camera rotates to a first orientation, the sixth camera is used to capture a first side image of the third gate, and the fourth chip is used to process the first side image to detect the number of pedestrians entering the radiation area each time. When the fourth camera rotates to a second orientation, the sixth camera is used to capture a second side image of the third gate, and the fourth chip is used to process the second side image to detect the number of pedestrians leaving the radiation area each time, wherein the first side of the third gate is farther away from the radiation area than the second side.

[0099] For example, the fourth camera may use a product of Nuctech: Light Smart Camera F3241-E. The detection process of the fourth chip is the same as that of the first chip above, and will not be repeated here.

[0100] Exemplarily, the rotating device includes a motor and a support rod. The base of the motor is mounted on the third gate, and the output end of the rotor part of the motor is connected to one end of the support rod. When the rotor of the motor rotates, it can drive the support rod to rotate around the rotating shaft of the motor. During this rotation process, the fourth camera installed at the other end of the support rod rotates synchronously to capture images in different directions.

[0101] For example, when the first radar module 131 detects a pedestrian entering the first position, it transmits this information to the control board. The control board analyzes the signal and determines the position of the pedestrian, and then sends a rotation instruction to the rotating device to aim the fourth camera at the first side area (the first position can be within the first side area). After the fourth camera captures the image of the pedestrian, its fourth chip analyzes it and feeds back the number of pedestrians to the control board. Correspondingly, the second radar module 132 will also detect pedestrians leaving the radiation area and transmit the information to the control board. The control board issues an instruction again, and the rotating device adjusts the position of the fourth camera to capture pedestrians leaving the radiation area.

[0102] It can be understood that the passage control device 100 composed of a single third gate device 110 can also include at least one of a safety relay, a first face recognition module, a second face recognition module, a first sensor module and a second sensor module.

[0103] The working logic of the traffic control device 100 is explained below from the perspective of control and electrical principles through one or more embodiments.

[0104] Figure 5 Schematically illustrates an embodiment of the present disclosure Figure 1 A control system topology diagram of the traffic control device 100. Figure 6 The electrical principle diagram of the alarm function of the traffic control device 100 according to the embodiment of the present disclosure is schematically shown. Figure 7 The electrical schematic diagram related to the safety relay according to the embodiment of the present disclosure is schematically shown.

[0105] Reference Figure 5The control board is connected to the VT1 servo driver, VT2 servo driver, VT3 servo driver, and VT4 servo driver based on the RS485 serial communication protocol. The VT1 servo driver and the VT2 servo driver are respectively used to drive the gates on both sides of the first gate 111, and the VT3 servo driver and the VT4 servo driver are respectively used to drive the gates on both sides of the second gate 112. When only the third gate is used, two servo drivers can be configured. The control board sends a signal to the safety interlock device based on the I / O interface, and is electrically connected to the first face recognition module 141, the second face recognition module 142, and the first camera 123 based on the I / O interface.

[0106] Figure 6 In the figure, the BX1 hemispherical camera represents the first camera 123, the PG01 face recognition terminal represents the first face recognition module 141, the PG02 face recognition terminal represents the second face recognition module 142, and the MCU gate controller represents the controller. Figure 3 When the third camera and the fourth camera are involved, two hemispherical cameras may be provided. Figure 4 When a rotating device is involved, the circuit of the motor can be connected.

[0107] Reference Figure 6 , the BX1 dome camera, PG01 face recognition terminal and PG02 face recognition terminal are connected to the DC12V power supply. When the BX1 dome camera detects tailgating, the corresponding Alarm Out A and Alarm Out B are connected, triggering the top camera detection tailgating alarm function of the MCU gate controller. When the PG01 face recognition terminal captures the face recognition, it triggers the KF11 terminal relay through Alarm In A and Alarm In B to close the Out1 and Com1 contacts corresponding to the PG01 face recognition terminal to form a valid signal loop, and then sends the entrance direction face recognition comparison signal to the gate controller. After receiving the signal, the gate controller will trigger the corresponding gate opening logic according to the comparison result. When the face recognition comparison fails, the line between the Alarm Out A and Alarm Out B corresponding to the PG01 face recognition terminal is connected, triggering the entrance face recognition alarm function of the MCU gate controller. The coordination process between the PG02 face recognition terminal and the MCU gate controller is the same as that between the PG01 face recognition terminal and the MCU gate controller, so it will not be repeated here.

[0108] In some embodiments, the controller further includes a safety relay, which is respectively connected to the safety circuit of the control board and the radiation area (such as Figure 7The control board is electrically connected to the radiation protection area safety circuit, wherein the safety interlock device is electrically connected to the safety circuit, so that the control board is configured to be electrically connected to the safety interlock device of the radiation area. When no one is in the radiation area, the safety relay is used to respond to the signal of the control board and put the safety interlock device into a specific state through the safety circuit.

[0109] In some embodiments, the traffic control device 100 further includes a reset key switch 150. The reset key switch 150 is electrically connected to the control board, wherein when the reset key switch 150 is turned, the control board resets the number of pedestrians in the radiation area.

[0110] According to the embodiment of the present disclosure, a reset key switch 150 is introduced into the access control device 100, providing a physical means for performing a reset operation. Through the reset key switch 150, the reset authority is effectively managed, and only authorized security officers holding the correct key can perform the operation, which not only ensures safety and compliance, but also strengthens the supervision of the security officer's operation and increases the possibility of responsibility tracing.

[0111] In some embodiments, when no one is in the radiation area and the reset key switch 150 is turned, the safety relay is used to respond to the signal of the control board and put the safety interlock device into a specific state through the safety circuit.

[0112] like Figure 7 As shown, the MCU gate controller and the KF10 safety relay are connected to the DC24V power supply. Specifically, there is no one in the radiation area, and Figure 6 The BX1 dome camera, PG01 face recognition terminal and PG02 face recognition terminal did not issue an alarm. The device is in the ON state without an alarm. The D017 and COM17 contacts of the MCU gate controller and the T11 and T12 contacts of the KF10 safety relay form a signal circuit corresponding to safety input 1. After the reset key switch 150 is turned, the device status is ready and in the ON state. The D018 and COM18 contacts of the MCU gate controller and the T21 and T22 contacts of the KF10 safety relay form a signal circuit corresponding to safety input 2. The radiation protection area safety circuit is connected to the 13 and 14 contacts of the KF10 safety relay. KA1, KA2...KAn correspond to n safety interlock switches, where n is greater than or equal to 1.

[0113] The device has no alarm, which is the safety input 1 condition, and the device is ready, which is the safety input 2 condition. When both of these conditions are in the ON state, it is a necessary condition for the safety output to be ON. At this time, the safety interlock device is placed in a specific state for indicating beam emission, such as a closed state. If this condition is not met, the safety output will not be ON, the safety interlock device will be placed in the open state, and the beam will not be emitted.

[0114] The D019 and COM19 contacts of the MCU gate controller and the T31 and T32 contacts of the KF10 safety relay form a corresponding reset signal circuit. The signal to the T32 terminal is OFF→ON→OFF switching state, which is a necessary condition for the safety output to turn on. If this condition is not met, the safety output will not turn on. The MCU outputs a reset signal and the safety output is reset.

[0115] Combination Figure 1 to Figure 7 , and the traffic control device 100 of each of the above embodiments, the traffic control method implemented based on the traffic control device 100 is further described below.

[0116] Figure 8 The flowchart of the traffic control method according to the embodiment of the present disclosure is schematically shown.

[0117] like Figure 8 As shown, the traffic control method of this embodiment includes:

[0118] In operation S810, the gate device 110 allows pedestrians meeting preset conditions to enter and exit the radiation area.

[0119] In operation S820, the detector 120 is enabled to detect the number of pedestrians entering and exiting the radiation area each time.

[0120] In operation S830, the control board of the controller receives the detection result of the detector 120 to count the number of pedestrians in the radiation area.

[0121] In operation S840, when no one is in the radiation area, a safety interlock device in the radiation area is placed in a specific state for indicating beam emission by using a control board, wherein the control board is electrically connected to the safety interlock device.

[0122] In some embodiments, when no one is in the radiation area, the safety relay is used to respond to the signal of the control board card, and the safety interlock device is placed in a specific state through the safety circuit. The safety relay is electrically connected to the control board card and the safety circuit of the radiation area, respectively, wherein the safety interlock device is electrically connected to the safety circuit.

[0123] In some embodiments, the first face recognition module 141 is electrically connected to the control board, and the first face recognition module 141 includes a first camera for photographing the faces of pedestrians entering the radiation area through the gate device 110. And / or, the second face recognition module 142 is electrically connected to the control board, and the second face recognition module 142 includes a second camera for photographing the faces of pedestrians leaving the radiation area through the gate device 110.

[0124] In some embodiments, the first sensor module 121 is installed on the gate device 110 to detect the number of pedestrians entering the radiation area each time, and / or the second sensor module 122 is installed on the gate device 110 to detect the number of pedestrians leaving the radiation area each time.

[0125] In some embodiments, a passage is defined between the second gate 112 and the first gate 111 .

[0126] In some embodiments, the third camera of the first camera 123 captures images in the channel, and the first chip of the first camera 123 processes the images to detect the number of pedestrians entering and exiting the radiation area each time.

[0127] In some embodiments, the first radar module 131 is electrically connected to the control board to detect the position of pedestrians who are about to enter the radiation area each time. And / or, the second radar module 132 is electrically connected to the control board to detect the position of pedestrians who are about to leave the radiation area each time.

[0128] In some embodiments, the first radar module 131 is installed on the first gate 111. When the first radar module 131 detects that a pedestrian to enter the radiation area has reached the first position, the control board is used to respond to the signal of the first radar module 131 and control the first gate 111 to open the gate.

[0129] In some embodiments, after a pedestrian to be entered into the radiation area enters the passage through the first gate 111, when the recognition result of the first face recognition module 141 is passed, the control board controls the gate of the second gate 112 to open and increases the number of pedestrians in the radiation area.

[0130] In some embodiments, when the recognition result of the first face recognition module 141 is passed and the number of pedestrians in the detection channel of the detector 120 is 1, the control board controls the gate of the second gate 112 to open, and increases the number of pedestrians in the counted radiation area by 1.

[0131] In some embodiments, the second radar module 132 is installed on the second gate 112. When the second radar module 132 detects that a pedestrian to leave the radiation area has arrived at the second position, the control board is used to respond to the signal of the second radar module 132 to enable the second gate 112 to open the gate.

[0132] In some embodiments, after a pedestrian to leave the radiation area enters the passage through the second gate 112, when the recognition result of the second face recognition module 142 is passed, the control board controls the gate of the first gate 111 to open and reduces the number of pedestrians in the radiation area.

[0133] In some embodiments, when the recognition result of the second face recognition module 142 is passed and the number of pedestrians in the detection channel of the detector 120 is 1, the control board controls the gate of the first gate 111 to open and reduces the number of pedestrians in the counted radiation area by 1.

[0134] In some embodiments, the gate device 110 is composed of a third gate, and the third gate is electrically connected to the control board.

[0135] In some embodiments, the detector 120 includes a second camera and a third camera. The second camera includes a fourth camera and a second chip. The third camera includes a fifth camera and a third chip. The fourth camera is used to capture a first side image of the third gate, and the second chip is used to process the first side image to detect the number of pedestrians entering the radiation area each time. The fifth camera is used to capture a second side image of the third gate, and the third chip is used to process the second side image to detect the number of pedestrians leaving the radiation area each time, wherein the first side of the third gate is farther away from the radiation area than the second side.

[0136] In some embodiments, the detector 120 includes a fourth camera. The fourth camera includes a sixth camera and a fourth chip, and is rotatably mounted on the third gate. When the fourth camera rotates to a first orientation, the sixth camera captures a first side image of the third gate, and the fourth chip is used to process the first side image to detect the number of pedestrians entering the radiation area each time. When the fourth camera rotates to a second orientation, the sixth camera captures a second side image of the third gate, and the fourth chip is used to process the second side image to detect the number of pedestrians leaving the radiation area each time, wherein the first side of the third gate is farther away from the radiation area than the second side.

[0137] In some embodiments, the reset key switch 150 is electrically connected to the control board, wherein when the reset key switch 150 is turned, the control board resets the number of pedestrians in the radiation area.

[0138] In some embodiments, when no one is in the radiation area and the reset key switch 150 is turned, the safety relay responds to the signal of the control board and places the safety interlock device in a specific state through the safety circuit.

[0139] Fig. 9 A flow chart of a traffic control method according to another embodiment of the present disclosure is schematically shown.

[0140] In operation S901, after initialization, it is confirmed that there is no one in the nuclear radiation protection area (i.e., the radiation area). After the safety officer turns the "zero ready key switch", the equipment is ready and the gate is kept in a normally closed state when there is no one in the channel, i.e., it is idle.

[0141] In operation S902, to ensure accurate counting, only one person is allowed to enter the nuclear radiation protection area at a time: Figure 1 and Figure 2 When a person is at the entrance of the gate (in front of gate #1), gate #1 is opened by induction, and the person enters the channel. A 1:N face comparison is performed in the channel, and the top camera detects the number of people. If the face comparison is successful and the number of people is 1, gate #2 is opened, and the person walks out of the channel to complete a forward passage, and the count is increased by one. If the person is not authorized, or the number of people is greater than 1, the equipment will sound an audible and visual alarm, open gate #1 in the reverse direction, and the excess people will exit the channel, and the count will not increase. When the number of people in the nuclear radiation protection area is not 0, the safety interlock is disconnected, and the X-ray machine of the equipment in the nuclear radiation protection area is not allowed to emit beams.

[0142] In operation S903, when the person is at the exit of the gate (in front of gate #2), gate #2 is opened by induction, and the person enters the channel. A 1:N face comparison is performed in the channel, and the top camera detects the number of people. If the face comparison is successful and the number of people is 1, gate #1 is opened, and the person walks out of the channel to complete a reverse passage, and the count is reduced by one. If the face comparison is unsuccessful, the person exits the channel and contacts the staff. When the number of people in the nuclear radiation protection area is 0, the safety interlock is ready, allowing the X-ray machine of the equipment in the nuclear radiation protection area to emit beams.

[0143] Combination Fig. 9 , and continue to refer to Figure 1 and Figure 2 The access control device includes two face recognition modules at the exit and entrance, a detector, a radar module, a sensor module, a gate and its transmission module. The face recognition module is used to verify the authority of the passers-by, release authorized personnel, and intercept unauthorized personnel. The detector can detect whether the person entering the gate channel is one person. If there are more than one person, an alarm will be sounded and the gate will be opened to allow the excess people to exit the channel to ensure the accuracy of the count.

[0144] The face recognition module, detector, and control board counting function are linked to automatically intercept unauthorized personnel and release and count authorized personnel. It is also equipped with an audio and visual prompt module (such as Figure 1 The first indicator light 161 and the second indicator light 162 are used to guide people to pass through, and can effectively prevent unauthorized people and trailing people from entering the nuclear radiation protection area.

[0145] In some embodiments, a temperature measurement intelligent terminal management system can be configured, installed in a server, and integrated into a face recognition module on the gate. The face recognition module can add, delete, modify, and check personnel permissions, query historical information, and obtain the temperature of passers-by.

[0146] In some embodiments, a remote control module may be configured. When a device failure or other event requiring manual processing occurs, the gate door panel may be opened using a remote control. At this time, the number of people passing through is not counted.

[0147] In some embodiments, a counting display may be configured to display the number of people currently in the radiation area through the screen.

[0148] In some embodiments, the face recognition module can be replaced by a face recognition camera or an IC card reader, identity card reader, or other information collection module that can be used to identify a person.

[0149] According to one or more embodiments of the present disclosure, in order to protect the safety of personnel in high-risk radiation workplaces and reduce the risk of radiation accidents / incidents, technical means such as face recognition are used to have the functions of managing the authority of personnel entering and exiting the radiation workplace and counting the number of people in the radiation workplace, so as to effectively avoid the occurrence of radiation accidents / incidents. Not only does it realize the automated control of personnel passage, but it also avoids the need for additional management personnel by automatically counting and displaying the number of people in the nuclear radiation protection zone, thereby significantly saving labor costs. In addition, by combining the counting function with the safety interlock mechanism, it ensures that beam-out operations cannot be performed in the protection zone when the count is non-zero, greatly improving safety. The modular design adopted allows users to flexibly configure detectors, counting displays and face recognition modules according to their own needs, and compatibility with existing gates further reduces material costs. At the same time, the application of non-sensing detection technology improves the experience of the person being detected and avoids the time wasted due to manual detection.

[0150] It will be appreciated by those skilled in the art that the features described in the various embodiments and / or claims of the present disclosure may be combined and / or combined in a variety of ways, even if such combinations and / or combinations are not explicitly described in the present disclosure. In particular, the features described in the various embodiments and / or claims of the present disclosure may be combined and / or combined in a variety of ways without departing from the spirit and teachings of the present disclosure. All of these combinations and / or combinations fall within the scope of the present disclosure.

[0151] The embodiments of the present disclosure are described above. However, these embodiments are only for illustrative purposes and are not intended to limit the scope of the present disclosure. Although the embodiments are described above separately, this does not mean that the measures in the various embodiments cannot be used in combination to advantage. The scope of the present disclosure is defined by the attached claims and their equivalents. Without departing from the scope of the present disclosure, those skilled in the art may make a variety of substitutions and modifications, which should all fall within the scope of the present disclosure.

Claims

1. A traffic control device, characterized in that: include: Gate equipment, used to allow pedestrians who meet preset conditions to enter and exit the radiation area; A detector, used to detect the number of pedestrians entering and exiting the radiation area each time; A controller, comprising a control board, wherein the control board is used to receive the detection result of the detector to count the number of pedestrians in the radiation area; The control board is configured to be electrically connected to the safety interlock device of the radiation area, and the control board is also used to place the safety interlock device in a specific state for indicating beam emission when no one is in the radiation area.

2. The device according to claim 1, characterized in that The controller further comprises: A safety relay, electrically connected to the control board and the safety circuit of the radiation area, respectively, wherein the safety interlock device is electrically connected to the safety circuit; When no one is in the radiation area, the safety relay is used to respond to the signal of the control board and put the safety interlock device into the specific state through the safety circuit.

3. The device according to claim 1, characterized in that The traffic control device also includes: a first face recognition module, electrically connected to the control board, the first face recognition module comprising a first camera for photographing faces of pedestrians entering the radiation area through the gate device; and / or, The second face recognition module is electrically connected to the control board, and the second face recognition module includes a second camera for photographing faces of pedestrians leaving the radiation area through the gate device.

4. The device according to claim 1, characterized in that The detector comprises: A first sensor module is installed in the gate device and is used to detect the number of pedestrians entering the radiation area each time; and / or, The second sensor module is installed on the gate device and is used to detect the number of pedestrians leaving the radiation area each time.

5. The device according to any one of claims 1 to 4, characterized in that: The gate equipment includes: A first gate, electrically connected to the control board; The second gate is electrically connected to the control board, and a channel is defined between the second gate and the first gate.

6. The device according to claim 5, characterized in that The detector comprises: A first camera, comprising a third camera and a first chip; The third camera is used to capture images in the channel, and the first chip is used to process the images to detect the number of pedestrians entering and exiting the radiation area each time.

7. The device according to claim 6, characterized in that The traffic control device also includes: a first radar module, electrically connected to the control board, for detecting the position of a pedestrian to enter the radiation area each time; and / or, The second radar module is electrically connected to the control board and is used to detect the position of pedestrians who are about to leave the radiation area each time.

8. The device according to claim 7, characterized in that The first radar module is installed on the first gate. When the first radar module detects that a pedestrian to enter the radiation area has reached a first position, the control board is used to respond to a signal from the first radar module to enable the first gate to open the gate.

9. The device according to claim 8, characterized in that After the pedestrian to be entered into the radiation area enters the channel via the first gate, when the recognition result of the first face recognition module is passed, the control board is used to control the gate of the second gate to open and increase the number of pedestrians in the radiation area.

10. The device according to claim 9, characterized in that When the recognition result of the first face recognition module is passed, and the detector detects that the number of pedestrians in the channel is 1, the control board is used to control the gate of the second gate to open, and increase the number of pedestrians counted in the radiation area by 1.

11. The device according to claim 7, characterized in that The second radar module is installed at the second gate. When the second radar module detects that a pedestrian who is about to leave the radiation area has reached a second position, the control board is used to respond to a signal from the second radar module to enable the second gate to open the gate.

12. The device according to claim 11, characterized in that After the pedestrian to leave the radiation area enters the channel through the second gate, when the recognition result of the second face recognition module is pass, the control board is used to control the gate of the first gate to open and reduce the number of pedestrians in the radiation area.

13. The device according to claim 12, characterized in that When the recognition result of the second face recognition module is passed and the detector detects that the number of pedestrians in the channel is 1, the control board is used to control the gate of the first gate to open and reduce the number of pedestrians counted in the radiation area by 1.

14. The device according to any one of claims 1 to 4, characterized in that The gate device is composed of a third gate, and the third gate is electrically connected to the control board.

15. The device according to claim 14, characterized in that The detector comprises: A second camera includes a fourth camera and a second chip, wherein the fourth camera is used to capture a first side image of the third gate, and the second chip is used to process the first side image to detect the number of pedestrians entering the radiation area each time; The third camera includes a fifth camera and a third chip, wherein the fifth camera is used to capture a second side image of the third gate, and the third chip is used to process the second side image to detect the number of pedestrians leaving the radiation area each time, wherein the first side of the third gate is farther away from the radiation area than the second side.

16. The device according to claim 14, characterized in that The detector comprises: a fourth camera, comprising a sixth camera head and a fourth chip, and rotatably mounted on the third gate; When the fourth camera rotates to the first orientation, the sixth camera is used to capture a first side image of the third gate, and the fourth chip is used to process the first side image to detect the number of pedestrians entering the radiation area each time; When the fourth camera rotates to the second orientation, the sixth camera is used to capture the second side image of the third gate, and the fourth chip is used to process the second side image to detect the number of pedestrians leaving the radiation area each time, wherein the first side of the third gate is farther away from the radiation area than the second side.

17. The device according to claim 2, characterized in that The traffic control device also includes: A reset key switch is electrically connected to the control board card, wherein when the reset key switch is turned, the control board card resets the number of pedestrians in the radiation area.

18. The device according to claim 17, characterized in that When there is no one in the radiation area and the reset key switch is turned, the safety relay is used to respond to the signal of the control board and place the safety interlock device in the specific state through the safety circuit.

19. A traffic control method, characterized in that: include: The gate equipment allows pedestrians who meet the preset conditions to enter and exit the radiation area; enabling the detector to detect the number of pedestrians entering and exiting the radiation area each time; The control board of the controller receives the detection result of the detector to count the number of pedestrians in the radiation area; When there is no one in the radiation area, the control board card is used to put the safety interlock device of the radiation area into a specific state for indicating beam emission, wherein the control board card is configured to be electrically connected to the safety interlock device.

Images