Marine escape way access control system
By designing a marine escape passage access control system and using card readers to control the relay and alarm loop, the contradiction between the ship's escape passage access control is solved, and a safe, economical and compatible access control effect is achieved.
Patent Information
- Application Number
- CN202420691050.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-07
- Publication Date
- 2025-02-21
- Estimated Expiration
- 2034-04-07
AI Technical Summary
When a ship encounters an emergency such as a fire, there are contradictions in access control of the escape passage. It not only requires the safety of passengers and crew members, but also requires the use of doors that require keys or special tools to be opened. The existing electronic remote control release method is the subject of some competent authorities. It is prohibited, resulting in high configuration costs and expensive trial burning.
A marine escape channel access control system is designed, and an alarm loop consisting of a series normally open limit switch, a normally closed relay, an alarm device and a terminal. The normally closed relay is controlled to disconnect through a card reader to realize the authority control of the door. And trigger the alarm device when unauthorized pass.
It realizes access control of fire doors and fire sliding doors on escape channels when the specifications are met, reducing configuration costs and good compatibility, solving the contradiction between shipowner's operations, ISPS and SOLAS specifications, and ensuring security and economical.
Smart Images
Figure CN222514745U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of shipbuilding, and in particular relates to a ship escape passage access control system. Background Art
[0002] In order to meet the diverse needs of passengers, passenger ships are designed with more service areas, and different permissions are granted according to the different levels of passengers. Permission control is usually achieved through access control systems, which are usually managed through lock systems. At the same time, according to ISPS, the passages from passengers to the crew area need to be effectively controlled to prevent passengers from entering.
[0003] However, since ships are floating buildings on the sea, in case of fire and other situations, doors that need to be opened by keys or special tools are not allowed to be set at the entrances and exits of all escape routes. Due to the escape analysis of ships, the escape route often overlaps with the restricted area, so this is a typical contradiction. At present, some projects can use the form of electronic release of the lock body to meet the escape needs, but some competent authorities prohibit the use of electronic remote control release for the access control of the escape channel of the ship. For this situation, the only solution at present is to set a lock system on the door, but the lock system can be directly opened by pressing the panic bar device, and a special lock body with micro-opening is used. When an unauthorized person opens the panic bar through the panic bar device, the micro-opening of the lock body is linked by the panic bar device, thereby triggering a signal of illegal intrusion. The signal is transmitted to the crew's resident area through the pre-buried line inside the door leaf, triggering the alarm device. However, the configuration cost of the access control system of this solution is high, and because it is an embedded equipment, if ordinary fire doors adopt this solution, they need to be re-tested for evidence, which requires a high test cost. Utility Model Content
[0004] The utility model aims to provide a marine escape passage access control system.
[0005] In order to achieve the above technical purpose, the utility model adopts the following technical solutions:
[0006] A marine escape passage access control system comprises an alarm loop consisting of a normally open limit switch, a normally closed relay, an alarm device and a terminal connected in series; the normally closed relay is connected to an output end of a card reader, and the card reader controls the normally closed relay to disconnect through a dry contact switch signal according to a card swiping behavior; the normally open limit switch is arranged at a door frame, so that the normally open limit switch is closed when the door is opened, and the terminal is used to obtain alarm information from the alarm device.
[0007] As a preferred embodiment, two card readers are provided, each of which is connected to a normally closed relay. One card reader can realize the authority control of crew members and passengers, that is, the crew side is free to open, and the passenger side is authority controlled; setting two card readers can meet the two-way restriction, allowing only specific crew members to pass.
[0008] As a preferred embodiment, for doors that are open during the day, a function conversion switch connected to the door is connected in series on the alarm loop. Some doors are kept open during the day, so the loop system needs to be disconnected, while the doors are closed at night, and the loop is continuous. Adding a function conversion switch can achieve the disconnection and continuity of the loop system.
[0009] As a preferred implementation, the normally closed relay is a time relay set to close at a certain time.
[0010] As a preferred implementation, the alarm device is a buzzer.
[0011] As a preferred implementation, the terminal is arranged in a cab or a service desk.
[0012] As a preferred implementation, the terminal locates the alarm position based on the device number of the door corresponding to the alarm device.
[0013] As a preferred implementation, the card reader is an RFID card reader.
[0014] The system structure of the utility model treats the door as an unlocked door, uses the electronic lock only as the control logic of authority, and adds a monitoring and alarm system to the door. Any unauthorized passage will be given an audible and visual warning locally and the alarm will be extended to monitoring locations such as the cab and service desk, so that the relevant person in charge on the ship can know the specific location at the first time, and respond quickly to the designated restricted location, and correct the behavior of unauthorized personnel in time. The system structure of the utility model allows ordinary fire doors and fire sliding doors on the escape route to achieve access control while meeting the specifications, solving the contradiction between authority control and escape between the shipowner's operation, ISPS and SOLAS specifications. At the same time, it has low cost and good compatibility, and can be applied to hinged fire doors and fire sliding doors on the escape routes of passenger ships. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is the structural diagram of the marine escape passage access control system applied to ordinary doors.
[0016] Figure 2 This is the structural diagram of the marine escape passage access control system applied to sliding doors (open during the day).
[0017] Among them, 1. The first card reader; 2. The second card reader; 3. The terminal; 4. The handle; 5. The alarm device; 6. The normally open limit switch; 7. The first normally closed relay; 8. The second normally closed relay; 9. The dry contact switch signal; 10. The transfer switch. DETAILED DESCRIPTION
[0018] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments.
[0019] Example 1
[0020] like Figure 1 A marine escape passage access control system shown in the figure comprises an alarm loop consisting of a normally open limit switch, a normally closed relay, an alarm device 5 and a terminal connected in series; the normally closed relay is connected to the output end of the card reader, and the card reader controls the normally closed relay to disconnect through a dry contact switch signal 9 according to the card swiping behavior; the normally open limit switch is arranged at the door frame so that the normally open limit switch is closed when the door is opened, and the terminal is used to obtain the alarm information of the alarm device.
[0021] In this embodiment, a first card reader 1 and a second card reader 2 are provided, the output end of the first card reader 1 is connected to a first normally closed relay 7 , and the output end of the second card reader 2 is connected to a second normally closed relay 8 .
[0022] The alarm device 5 is a local alarm device, which is a buzzer in this embodiment. The card reader is an RFID card reader, which is located near the door entrance and the handle 4 (the handle is a panic bar or a door handle) at the entrance, and is used to identify the authority of the person entering and leaving. The normally closed relay is a time relay that is set to close at a fixed time.
[0023] Terminal 3 is the door alarm panel, which is the feedback part of the entire alarm system. It is located in the cab, service desk, etc., and is used to monitor and provide location and alarm feedback information.
[0024] The working principle of the device described in this embodiment is as follows, which is divided into two working conditions:
[0025] 1. People with permission to pass: People holding permission RFID cards swipe their cards at the RFID card readers on both sides of the door to disconnect the normally closed relay. At this time, the system will temporarily (adjustable time) shut down the alarm system. After the person passes, the alarm system will restart and resume working. The time here is the disconnection time of the normally closed relay, which can be adjusted between 0 and 99 seconds.
[0026] 2. People without permission: When unauthorized persons open these doors, the normally open limit switches are triggered to close, and the local alarm device 5 will sound immediately to serve as a warning, and the terminal will be notified and the location will be identified so that the relevant person in charge can take subsequent actions.
[0027] For this embodiment, the door is initially closed by default. An optional implementation is that the door is open during the day, such as Figure 2 As shown, at this time, a conversion switch 10 is connected in series in the loop.
[0028] The first working condition: Authorized passage:
[0029] like Figure 1 As shown in FIG. 2, when any first card reader 1 or first card reader 2 on both sides of the door recognizes the correct card, the corresponding first normally closed relay 7 or second normally closed relay 8 will be temporarily disconnected, so that the door alarm board system loop is temporarily disconnected, and the door opening action will not trigger the alarm system. The authorized person can pass normally.
[0030] The second condition, unauthorized access:
[0031] a) If Figure 1 As shown in Figure 2, when any of the first card reader 1 or the second card reader 2 on both sides of the door does not recognize the correct card, the first normally closed relay 7 and the second normally closed relay 8 will not operate and keep the loop of the alarm system at that location closed. At this time, when the door is opened, the normally open limit switch 6 changes from normally open to closed, and the entire alarm loop forms a closed loop, that is, the alarm device 5 is triggered to work, the alarm device (local buzzer) sounds, and the terminal 3 (door alarm panel) in the cab or service desk receives the alarm information and specific location.
[0032] b) If Figure 1 As shown in or 2, when the pedestrian opens the door directly without swiping the card to identify his identity, the principle is similar to item a, the normally open limit switch 6 changes from normally open to closed, the entire alarm loop forms a closed loop, the alarm system is triggered, the alarm device 5 sounds an alarm, and the terminal 3 (door alarm panel) in the cab or service desk receives the alarm information and specific location.
Claims
1. A marine escape passage access control system, characterized in that: The invention comprises an alarm loop consisting of a normally open limit switch, a normally closed relay, an alarm device and a terminal connected in series; the normally closed relay is connected to the output end of the card reader, and the card reader controls the normally closed relay to disconnect through a dry contact switch signal according to the card swiping behavior; the normally open limit switch is arranged at the door frame so that the normally open limit switch is closed when the door is opened, and the terminal is used to obtain the alarm information of the alarm device.
2. The system according to claim 1, characterized in that There are two card readers, and each card reader is connected to a normally closed relay.
3. The system according to claim 1, characterized in that For doors that are open during the day, a function conversion switch connected to the door is serially connected to the alarm loop.
4. The system according to claim 1, characterized in that The normally closed relay is a time relay that is set to close at a certain time.
5. The system according to claim 1, characterized in that The alarm device is a buzzer.
6. The system according to claim 1, characterized in that The terminal is arranged in the cab or the service desk.
7. The system according to claim 1, characterized in that The terminal locates the alarm position based on the device number of the door corresponding to the alarm device.
8. The system according to claim 1, characterized in that The card reader is an RFID card reader.