Fire manual alarm and broadcast scheduling system and method for tunnel operation

Abstract

The invention discloses a manual fire alarm and broadcast scheduling system and method for tunnel operation. The system comprises a manual alarm subsystem and a broadcast scheduling alarm subsystem. The manual alarm subsystem comprises a manual fire alarm and a fire-fighting audible and visual alarm; the broadcast scheduling subsystem comprises an explosion-proof IP telephone, a scheduling desk type host and an IP telephone server. The method comprises the steps that the manual alarm subsystem gives an alarm through a manual fire alarm fixed and preset in a tunnel, the manual fire alarm contacts with a dispatching desk type host, and the manual fire alarm triggers a fire-fighting audible and visual alarm to send out an audible and visual alarm signal to remind nearby people to evacuate at the same time; the broadcast scheduling subsystem displays alarm information through a scheduling desk type host, an IP telephone server contacts an explosion-proof IP telephone fixedly preset in a tunnel, and the explosion-proof IP telephone triggers a fire-fighting audible and visual alarm to send out an audible and visual alarm signal at the same time to remind people nearby to evacuate.

Description

Technical Field

[0001] The present invention relates to the field of fire emergency response, and in particular to a manual fire alarm and broadcast dispatching system and method for tunnel operations. Background Art

[0002] With the acceleration of urbanization and the growing demand for infrastructure construction, the application of tunnels and underground engineering in the construction sector continues to expand. However, such projects generally face problems such as complex construction environments, low visibility, and severe noise interference. Some tunnels also pose the risk of accumulation of flammable or explosive gases, posing a serious threat to personnel safety and equipment operation. In the event of a fire or other emergency, existing emergency communication and alarm systems have the following technical deficiencies: 1. Insufficient wireless communication reliability: Existing technologies rely on wireless communication devices such as mobile phones and walkie-talkies to transmit alarm information. However, in confined tunnels or complex geological environments, these devices are susceptible to signal attenuation and electromagnetic interference, leading to communication delays or interruptions. This makes it difficult to provide the dispatch center with real-time and accurate alarm information, delaying emergency response. 2. Limited on-site warning methods: Traditional manual fire alarm systems lack a linkage mechanism with audible and visual alarm devices. Once the alarm is triggered, they are unable to quickly generate a strong and perceptible audible and visual warning signal. This makes it difficult to effectively alert nearby personnel to evacuate in noisy and low-visibility environments, posing a risk of secondary accidents.

[0003] 3. Limited communication equipment functions: The existing fire telephone system only supports single-point communication with the dispatch center, and extensions cannot be interconnected. The equipment lacks an explosion-proof design and is difficult to adapt to flammable and explosive or harsh construction environments. At the same time, there is no continuous alarm prompt function when the call is not answered, which may lead to the omission of key information. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides a manual fire alarm and broadcast dispatching system and method for tunnel operations.

[0005] A manual fire alarm and broadcast dispatch system for tunnel operations, comprising a manual alarm subsystem and a broadcast dispatch alarm subsystem; The manual alarm subsystem includes a manual fire alarm and a fire sound and light alarm; The broadcast dispatch subsystem includes an explosion-proof IP phone, a dispatch desktop host and an IP phone server; The manual alarm subsystem alarms through the tunnel's fixed preset manual fire alarm, which contacts the dispatching desktop host and simultaneously triggers the fire sound and light alarm to emit sound and light alarm signals to remind nearby personnel to evacuate; The broadcast dispatch subsystem displays the alarm information through the dispatching desktop host, and the IP telephone server contacts the tunnel's fixed preset explosion-proof IP telephone, which simultaneously triggers the fire sound and light alarm to send out sound and light alarm signals to remind nearby personnel to evacuate.

[0006] Among them, the manual fire alarm and explosion-proof IP phone are connected to the optical modem in this area using a network cable, and data is transmitted to the monitoring center server via Ethernet; Among them, the manual fire alarm button is equipped with a protective cover on the surface, adopts a self-locking design, has a protection level of IP65, and is powered by a safe voltage; Among them, the explosion-proof IP phone shell is made of metal, and the surface treatment must meet the anti-rust and anti-corrosion requirements.

[0007] Furthermore, a manual fire alarm and broadcast dispatch system for tunnel operations also includes an alarm information transmission subsystem; The alarm information transmission subsystem includes an optical modem, a switch, and a monitoring center server; The manual fire alarm is connected to the optical modem via a network cable for data encapsulation; The optical modem and the switch in the local area network perform data transmission; The monitoring center server decapsulates the transmission data of the switch; Among them, in the local area network, the Ethernet communication protocol (TCP / IP protocol) is used to achieve network interconnection through the network interface layer, internet layer (IP layer), transport layer, and application layer; Among them, the optical modem is the physical layer, the router is the network layer, the switch is the data link layer, and the monitoring center server is the application layer.

[0008] Furthermore, a manual fire alarm and broadcast dispatch system for tunnel operations is provided, wherein the manual fire alarm encapsulates the alarm information into an IP data packet and transmits it to an optical modem via a network cable; The alarm information includes the IP information and alarm time of the manual fire alarm.

[0009] Further, in a manual fire alarm and broadcast dispatch system for tunnel operations, the optical modem forwards data frames to the switch via a port according to the MAC address in the IP data packet; The switch builds a MAC address table by learning the MAC addresses of the connection ports and forwards data frames to the corresponding ports according to the MAC addresses.

[0010] Furthermore, in a manual fire alarm and broadcast dispatch system for tunnel operations, the switch transmits the IP data packet to the monitoring center server via the router of the monitoring center; The monitoring center server decapsulates the IP data packet, extracts the alarm information, and analyzes and processes the alarm information.

[0011] Furthermore, a manual fire alarm and broadcast dispatch system for tunnel operations is provided, wherein the explosion-proof IP phone, manual fire alarm, and fire sound and light alarm are preset in a group in the tunnel at intervals. The explosion-proof IP phone is set in the vicinity of the manual fire alarm; The explosion-proof IP phone and the manual fire alarm are connected via cables and fire sound and light alarms respectively; Among them, the explosion-proof IP phone is bright yellow, with a protection level of IP68, meets dust explosion-proof requirements, and uses an RJ45 network interface and SIP network protocol.

[0012] Furthermore, a manual fire alarm and broadcast dispatch system for tunnel operations is provided, wherein the manual fire alarm is assigned an independent IP address and adopts the Modbus TCP / IP transmission protocol.

[0013] Furthermore, a manual fire alarm and broadcast dispatch system for tunnel operations is provided, wherein the dispatch desktop host and IP telephone server are installed in a ground monitoring room and are connected via optical fiber and an optical modem.

[0014] Furthermore, a manual fire alarm and broadcast dispatch system for tunnel operations is provided, wherein the extensions of the explosion-proof IP phones are interconnected.

[0015] A method for manual fire alarm and broadcast dispatch alarm in tunnel operations, comprising the following steps: S1: When a fire is discovered, the on-site personnel press the nearby manual fire alarm, which sends an alarm message to the monitoring center server. The manual fire alarm also triggers the fire alarm to emit an audible and visual alarm signal, reminding nearby personnel to evacuate. S2: The monitoring center server receives the alarm information, confirms the location of the fire through the IP address, and contacts the staff near the manual fire alarm through the IP phone server. After the staff arrives at the area, they call back to the IP phone server via the explosion-proof IP phone to report the situation.

[0016] The beneficial effects of the present invention are: 1. Highly reliable alarm information transmission: Alarm signals are transmitted through a fiber-optic communication network with preset fixed points, overcoming the shortcomings of traditional wireless communications that are susceptible to signal attenuation and electromagnetic interference in tunnel environments. This ensures that alarm information is transmitted to the dispatch center in real time and without delay, buying critical time for the rapid activation of emergency plans. 2. Multi-dimensional on-site warning and evacuation guidance: Through the linkage design of the manual fire alarm and the fire sound and light alarm, a high-intensity sound and light signal is immediately generated when the alarm is triggered. It effectively penetrates the noisy and low-visibility environment in the tunnel, alerting on-site personnel to evacuate immediately, significantly reducing the risk of secondary injuries caused by delayed information transmission; 3. Flexible explosion-proof communication and continuous alarm functions: The explosion-proof IP phone supports intercommunication between extensions and two-way communication with the dispatch center, breaking the limitation of traditional fire telephones that only support single-point contact and improving the flexibility of emergency coordination. The IP phone works in conjunction with the sound and light alarm, continuously triggering the sound and light alarm when not connected, preventing the omission of emergency information. The equipment's explosion-proof design adapts to harsh construction environments such as flammable and explosive, humid and dusty environments, ensuring the stable operation of the communication system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural diagram of a manual fire alarm and broadcast dispatch system for tunnel operations. DETAILED DESCRIPTION

[0018] The present invention is further described below, but the protection scope of the present invention is not limited to the following description.

[0019] Specific embodiment 1 Structure of manual fire alarm and broadcast dispatch system for tunnel operation 1. Manual alarm subsystem: Manual fire alarm: installed at a fixed point in the tunnel, with a built-in Modbus TCP / IP communication module, assigned an independent IP address, and connected to the optical modem via a network cable.

[0020] Fire sound and light alarm: connected to the manual fire alarm through a cable, it emits a strong sound and red flashing signal when triggered, and continues to alarm until reset.

[0021] 2. Broadcast scheduling subsystem: Explosion-proof IP phone: supports intercommunication between extensions and two-way communication with the dispatch center; it is linked to the fire sound and light alarm and continuously triggers the sound and light alarm when the connection is not connected.

[0022] Dispatch desktop host: deployed in the ground monitoring room, equipped with a dedicated alarm display interface, supporting alarm location map marking, pop-up prompts and sound and light warning functions.

[0023] Telephone server: integrated into the monitoring center server, manages the communication links and call forwarding logic of explosion-proof IP phones.

[0024] 3. Alarm information transmission subsystem: Optical modem: Located in various areas of the tunnel, it serves as a physical layer device that converts IP data packets (including alarm IP and timestamp) sent by manual fire alarms into optical signals and transmits them to the ground switch via single-mode optical fiber.

[0025] Switch: Data link layer device that forwards data frames based on the MAC address table and connects the optical modems in the tunnel to the ground router.

[0026] Monitoring center server: application layer device, runs data decapsulation program and linkage control module, analyzes alarm information and triggers video surveillance retrieval, emergency broadcast startup and other operations.

[0027] System connection relationship: A set of equipment (manual fire alarm + explosion-proof IP phone + fire sound and light alarm) is installed every 50 meters in the tunnel, and the three are interconnected by shielded cables.

[0028] Manual fire alarms and explosion-proof IP phones are connected to the optical modem in this area via network cables. The optical modem is connected to the ground switch via optical fiber, and the switch communicates with the monitoring center server through a router.

[0029] The dispatching desktop host and IP telephone server are directly connected to the switch via optical fiber to receive and display alarm data in real time.

[0030] Specific embodiment 2 Flow of the manual fire alarm and broadcast dispatching method for tunnel operation 1. Alarm triggering and local alerting: On-site personnel press the manual fire alarm button, triggering the self-locking mechanism and generating an alarm signal; The fire sound and light alarm is activated immediately; The alarm device encapsulates the alarm information including the IP address and timestamp into a Modbus TCP / IP data packet and sends it to the optical modem via the network cable.

[0031] 2. Fiber optic transmission and network layer processing: The optical modem converts the electrical signal into an optical signal and transmits it to the switch via optical fiber; The switch forwards the data frame to the router according to the MAC address table, and the router routes the data packet to the monitoring center server based on the IP address.

[0032] 3. Center alarm and linkage response: The monitoring center server decapsulates the data packet, parses the alarm location and time, and triggers the following actions: a. The dispatching desktop host pops up a window to display the alarm point map location and plays a voice alarm simultaneously; b. Automatically retrieve the camera images near the alarm point and project them onto the monitoring screen; c. The IP phone server calls the explosion-proof IP phone closest to the alarm point. If the call is not connected within 10 seconds, the sound and light alarm will be continuously triggered.

[0033] 4. On-site confirmation and emergency response: The on-duty personnel at the monitoring center dispatched on-site personnel with firefighting equipment to confirm the situation via explosion-proof IP phone; After confirming the personnel's arrival, call back to report the fire situation via the explosion-proof IP phone: a. False alarm handling: reset the alarm button, the server records the event and shuts down the linked device; b. Real fire situation: Initiate fire extinguishing operations, the server simultaneously activates emergency broadcast guidance for evacuation, and shuts down the ventilation system in the tunnel.

[0034] 5. Data archiving and system reset: All alarm times, processing records and linkage operation logs are stored in the database; After the fire is extinguished, a global reset command is sent through the dispatching desktop host to reset the status of the manual alarm and the sound and light alarm.

[0035] Specific embodiment three Full process signal path Alarm trigger: button pressed → serial communication device and Ethernet (TCP / IP) network protocol → encapsulated into data packets; Fiber optic transmission: electrical signal → fiber optic transceiver → optical signal → single-mode fiber → optical modem; Network layer processing: optical modem → router → switch → server; Terminal display: Server push alarm → switch → terminal computer web interface pop-up window; Human alert: IP phone → ask and confirm the on-site situation.

[0036] As shown in the table, the functional differences are shown in Table 1: Those skilled in the art will appreciate that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A manual fire alarm and broadcast dispatch system for tunnel operations, characterized in that: Including manual alarm subsystem and broadcast dispatch alarm subsystem; The manual alarm subsystem includes a manual fire alarm and a fire sound and light alarm; The broadcast dispatch subsystem includes an explosion-proof IP phone, a dispatch desktop host and an IP phone server; The manual alarm subsystem alarms through the tunnel's fixed preset manual fire alarm, which contacts the dispatching desktop host and simultaneously triggers the fire sound and light alarm to emit sound and light alarm signals to remind nearby personnel to evacuate; The broadcast dispatch subsystem displays the alarm information through the dispatching desktop host, and the IP telephone server contacts the tunnel's fixed preset explosion-proof IP telephone, which simultaneously triggers the fire sound and light alarm to send out sound and light alarm signals to remind nearby personnel to evacuate.

2. The manual fire alarm and broadcast dispatch system for tunnel operations according to claim 1, characterized in that: It also includes an alarm information transmission subsystem; The alarm information transmission subsystem includes an optical modem, a switch, and a monitoring center server; The manual fire alarm is connected to the optical modem via a network cable for data encapsulation; The optical modem and the switch in the local area network perform data transmission; The monitoring center server decapsulates the transmission data of the switch.

3. The manual fire alarm and broadcast dispatch system for tunnel operations according to claim 2, characterized in that: The manual fire alarm encapsulates the alarm information into an IP data packet and transmits it to the optical modem via the network cable; The alarm information includes the IP information and alarm time of the manual fire alarm.

4. The manual fire alarm and broadcast dispatch system for tunnel operations according to claim 2, characterized in that: The optical modem forwards the data frame to the switch via a port according to the MAC address in the IP data packet; The switch builds a MAC address table by learning the MAC addresses of the connection ports and forwards data frames to the corresponding ports according to the MAC addresses.

5. The manual fire alarm and broadcast dispatch system for tunnel operations according to claim 2, characterized in that: The switch transmits the IP data packet to the monitoring center server through the router of the monitoring center; The monitoring center server decapsulates the IP data packet, extracts the alarm information, and analyzes and processes the alarm information.

6. The manual fire alarm and broadcast dispatch system for tunnel operations according to claim 1, characterized in that: The explosion-proof IP phone, manual fire alarm, and fire sound and light alarm are preset in the tunnel as a group. The explosion-proof IP phone is set in the vicinity of the manual fire alarm; The explosion-proof IP telephone and the manual fire alarm are connected via cables and fire sound and light alarms respectively.

7. The manual fire alarm and broadcast dispatch system for tunnel operations according to claim 1, characterized in that: The manual fire alarm is assigned an independent IP address and adopts Modbus TCP / IP transmission protocol.

8. The manual fire alarm and broadcast dispatch system for tunnel operations according to claim 1, characterized in that: The dispatching desktop host and IP telephone server are installed in the ground monitoring room and are connected via optical fiber and optical modem.

9. The manual fire alarm and broadcast dispatch system for tunnel operations according to claim 1, characterized in that: The extensions of the explosion-proof IP phones are interconnected.

10. A method for manual fire alarm and broadcast dispatching in tunnel operations, implemented based on the manual fire alarm and broadcast dispatching system for tunnel operations according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: When a fire is discovered, the on-site personnel press the nearby manual fire alarm, which sends an alarm message to the monitoring center server. The manual fire alarm also triggers the fire alarm to emit an audible and visual alarm signal, reminding nearby personnel to evacuate. S2: The monitoring center server receives the alarm information, confirms the location of the fire through the IP address, and contacts the staff near the manual fire alarm through the IP phone server. After the staff arrives at the area, they call back to the IP phone server via the explosion-proof IP phone to report the situation.

Images