Gas alarm system

Abstract

The utility model provides a fuel gas alarm system, relates to production monitoring technical field, the fuel gas alarm system includes: alarm, alarm controller and center console, alarm and alarm controller are connected, alarm controller and center console are in communication connection, alarm is located in the fuel gas production area, alarm controller is located in the fuel gas production area, and the center console is located in the fuel gas production area. The alarm is used for collecting the gas concentration of a gas production area and transmitting a concentration signal corresponding to the gas concentration to the alarm controller, and the alarm controller is used for transmitting the concentration signal transmitted by the alarm to the center console through a preset serial interface. According to the fuel gas alarm system, through cooperative work of the alarm, the alarm controller and the center console, the safety condition of a fuel gas production area can be effectively monitored, potential dangers can be found and handled in time, and therefore the safety and reliability of the whole system are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of production monitoring, in particular to a gas alarm system. Background Art

[0002] Fixed alarms are important auxiliary equipment for gas plants (such as coal gas plants) to ensure smooth production operations and personnel safety. Fixed alarms can monitor the concentration of gases such as CO, allowing operators to quickly detect gas leaks and take countermeasures, thereby protecting the production environment and personnel safety.

[0003] In the production area of a gas plant, the alarm collects gas concentration and sends the corresponding signal to a gas alarm controller (such as the KB2100Ⅱ gas alarm controller). Since the gas alarm controller is usually located near the production area of the gas plant, it is not convenient for operators to pay attention to the status of the gas alarm controller in a timely manner, which may affect production safety. Utility Model Content

[0004] The problem solved by the utility model is how to ensure the production safety of a gas plant.

[0005] In order to solve the above problems, the present invention provides a gas alarm system, comprising:

[0006] An alarm, an alarm controller and a central console, wherein the alarm is connected to the alarm controller, which is in communication with the central console. The alarm is located in a gas production area, and is used to collect the gas concentration in the gas production area and transmit a concentration signal corresponding to the gas concentration to the alarm controller. The alarm controller is used to transmit the concentration signal transmitted by the alarm to the central console via a preset serial interface.

[0007] Optionally, the alarm controller includes multiple controller units, any one of the controller units is connected to the corresponding alarm, and the multiple controller units are all communicatively connected to the central console via the preset serial interface.

[0008] Optionally, any of the controller units includes a controller power interface and a controller ground interface, and the alarm corresponding to any of the controller units includes an alarm power interface and an alarm ground interface, the controller power interface is connected to the alarm power interface, and the controller ground interface is connected to the alarm ground interface to power the alarm through the controller unit.

[0009] Optionally, any of the controller units includes a power input interface, and the power input interface is used to connect to an external power supply and the controller power interface.

[0010] Optionally, the power input interface includes a first power input interface and a second power input interface, the first power input interface is connected to the phase line of the external power supply, and the second power input interface is connected to the neutral line of the external power supply.

[0011] Optionally, any of the controller units includes a backup power supply interface and a backup grounding interface, the backup power supply interface being used to connect to the power input interface and the alarm power supply interface when the controller power supply interface fails, and the backup grounding interface being used to connect to the alarm grounding interface when the controller grounding interface fails.

[0012] Optionally, any of the controller units includes a first signal transmission interface, and the alarm corresponding to any of the controller units includes a second signal transmission interface, and the first signal transmission interface is connected to the second signal transmission interface to obtain the concentration signal transmitted by the alarm.

[0013] Optionally, any of the controller units includes a signal transmission interface, and the signal transmission interface is connected to the preset serial interface.

[0014] Optionally, it further includes connection terminals, which are respectively connected to the preset serial interface and the signal transmission interface of each controller unit.

[0015] Optionally, any of the controller units includes a status display component, and the status display component is used to display the level of the gas concentration.

[0016] The beneficial effects of the gas alarm system of the present invention are as follows: by setting up alarms in the gas production area, real-time monitoring of gas concentration can be achieved, ensuring that potential gas leaks are discovered at the first possible moment, potential safety hazards are discovered in a timely manner, and the risk of accidents is reduced. The alarm transmits the collected gas concentration signal to the alarm controller to ensure the accuracy and timeliness of the data. Information is transmitted to the central control console via a preset serial interface to ensure rapid information transmission and response, thereby improving the overall response speed of the system. The central control console can centrally manage and display information from each alarm, making it easier for operators to understand the safety status of the entire gas production area, helping managers to respond in a timely manner, and improving the operability and safety of the system. Through the collaborative work of the alarm, alarm controller, and central control console, the gas alarm system can effectively monitor the safety status of the gas production area, promptly discover and deal with potential dangers, reduce the probability of accidents, and thus improve the safety and reliability of the entire system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural block diagram of the gas alarm system according to an embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of a gas alarm system according to an embodiment of the present utility model;

[0019] Description of reference numerals:

[0020] 100 - alarm; 101 - alarm power interface; 102 - alarm ground interface; 103 - second signal transmission interface; 200 - alarm controller; 300 - center console; 400 - external power supply; 401 - phase line; 402 - neutral line; 500 - wiring terminal;

[0021] 1-Power input interface; 11-First power input interface; 12-Second power input interface; 2-Ground interface; 3-Backup power interface; 4-Backup ground interface; 5-Controller power interface; 6-Controller ground interface; 7-First signal transmission interface; 8, 9-Signal transmission interfaces. DETAILED DESCRIPTION

[0022] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as being limited to the embodiments described herein. Instead, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0023] It should be understood that the various steps described in the method embodiments of the present invention can be performed in a different order and / or in parallel. In addition, the method embodiments may include additional steps and / or omit the steps shown. The scope of the present invention is not limited in this respect.

[0024] The term "including" and its variations used in this document are open inclusions, that is, "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments"; the term "optionally" means "optional embodiments". The relevant definitions of other terms will be given in the following description. It should be noted that the concepts of "first", "second", etc. mentioned in this utility model are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0025] It should be noted that the modifications of "one" and "multiple" mentioned in the present invention are illustrative rather than restrictive. Those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0026] The names of the messages or information exchanged between multiple devices in the embodiments of the present invention are only used for illustrative purposes and are not used to limit the scope of these messages or information.

[0027] like Figure 1 As shown, the embodiment of the present invention provides a gas alarm system, comprising:

[0028] An alarm 100, an alarm controller 200 and a central console 300, wherein the alarm 100 is connected to the alarm controller 200, and the alarm controller 200 is communicatively connected to the central console 300. The alarm 100 is located in a gas production area. The alarm 100 is used to collect the gas concentration in the gas production area and transmit the concentration signal corresponding to the gas concentration to the alarm controller 200. The alarm controller 200 is used to transmit the concentration signal transmitted by the alarm 100 to the central console 300 through a preset serial interface.

[0029] Specifically, if Figure 1 As shown, the alarm 100 is deployed in the gas production area and is responsible for real-time monitoring of the gas concentration in the area (which may be flammable and explosive gases such as carbon monoxide (CO) or other harmful gases), converting the detected data into an electrical signal (i.e., a concentration signal) and transmitting this signal to the alarm controller 200. In order to improve the safety of the gas production area, the alarm 100 is usually deployed at key locations where the gas concentration may increase in the gas production area to monitor the changes in gas concentration in real time. When the gas concentration exceeds the safety threshold, the alarm 100 will immediately collect and generate the corresponding concentration signal and transmit it to the alarm controller 200. As the core component of the system, the alarm controller 200 is responsible for receiving the concentration signal from the alarm 100 and forwarding these signals to the central control console 300 through a preset serial interface. The central control console 300 is responsible for processing and displaying information (such as setting the alarm threshold), and can prompt operators to respond to potential dangerous situations in a timely manner when necessary, thereby ensuring the safety of the production area.

[0030] For example, when the alarm 100 detects an abnormal CO gas concentration, it will transmit this signal to the alarm controller 200. The controllers in the alarm controller 200 are connected in parallel through the RS485 interface, and the alarm controller 200 communicates with the corresponding software on the central console 300 using a half-duplex communication method through the RS485 interface (data is allowed to be transmitted in one direction, from the alarm controller 200 to the central console 300). In order to ensure accurate data transmission, the corresponding ModbusRTU communication protocol can be set, including configuring the register address to 40503 (which may be offset according to actual conditions) and setting the baud rate to 4800bps. (The ModbusRTU communication protocol is a master-slave protocol. The host sends a request and the slave returns a response, but the slave cannot actively send data. There is only one host on the bus at the same time, but there can be multiple slaves). The data in the alarm controller 200 can be uploaded to the central console 300 in a predetermined format, and the operator can view the status information of each alarm 100 in real time through the graphical interface.

[0031] In this embodiment, by installing alarms 100 in gas production areas, real-time monitoring of gas concentrations is achieved, ensuring the immediate detection of potential gas leaks, promptly identifying potential safety hazards, and reducing the risk of accidents. The alarms 100 transmit the collected gas concentration signals to the alarm controller 200, ensuring data accuracy and timeliness. Information is transmitted to the central control console 300 via a pre-set serial interface, ensuring rapid information transmission and response, improving the overall responsiveness of the system. The central control console 300 centrally manages and displays information from each alarm 100, facilitating operator understanding of the safety status of the entire gas production area. It can also issue alerts based on received data, helping managers respond promptly and enhancing system operability and safety. Through the collaborative operation of the alarms 100, alarm controller 200, and central control console 300, this gas alarm system effectively monitors the safety status of gas production areas, promptly identifies and addresses potential hazards, reduces the probability of accidents, and thus improves the safety and reliability of the entire system.

[0032] Optionally, the alarm controller 200 includes multiple controller units, any one of the controller units is connected to the corresponding alarm 100, and the multiple controller units are all communicatively connected to the central console 300 through the preset serial interface.

[0033] Specifically, if Figure 2As shown, the alarm controller 200 includes multiple independent controller units, each of which can be directly connected to the corresponding alarm 100 in the production area. Each alarm has its own dedicated controller to process and transmit data, realizing separate management of different alarms, ensuring the accuracy of data and the immediacy of response, and improving the scalability of the system. Users can increase or decrease the number of controller units according to actual needs. At the same time, all controller units maintain communication connection with the central control console 300 through RS485 or similar standard serial interface, even if there are many alarms distributed in a complex and extensive production area, centralized management and real-time monitoring of data can be achieved. The use of serial interface reduces the complexity of data transmission and ensures the stability of the system and the efficiency of data transmission.

[0034] In addition, each controller unit supports independent parameter configuration and alarm threshold settings, which can be flexibly adjusted according to the actual needs of different areas, further enhancing the flexibility and adaptability of the system. Each alarm controller unit contains independent modules that can be freely combined to meet the needs of different production environments. These units have the functions of multi-level alarm setting and alarm point linkage output, can output passive normally open contacts through relays, and support 4-20mA analog signals and RS485 digital signal outputs. The alarm controller 200 units are connected in parallel via the RS485 bus. To ensure reliable data transmission, the RS485 interface of each unit is hardware-wired in accordance with specifications. Operators can configure the parameters of each controller unit through the corresponding software, such as setting the Modbus upload protocol, and upload data to the host computer on the central console 300 for centralized management. It also has a password lock function to prevent misoperation or unauthorized access.

[0035] In this optional embodiment, by providing multiple controller units, the system can better adapt to large or complex production areas. Each alarm has independent processing capabilities, improving the overall stability and reliability of the system. Each controller unit is connected one-to-one with its corresponding alarm, simplifying the data transmission path, reducing the possibility of signal interference, and ensuring data transmission accuracy. Multiple controller units communicate with the central console 300 via a pre-set serial interface, allowing the status of all alarms to be centrally displayed on a single platform, facilitating operator monitoring and management. For example, if the CO concentration at a certain location exceeds the specified limit, the system immediately triggers an alarm, prompting relevant personnel to take emergency measures and effectively preventing potential danger. The pre-set RS485 interface supports long-distance data transmission and can maintain reliable communication connections over a large geographical area. Each controller unit can independently set parameters and alarm thresholds, allowing the system to quickly adjust to actual environmental changes, enhancing its flexibility and practicality. The provision of multiple controller units and efficient communication with the central console 300 improves safety in the gas production area while also making operation more intuitive and convenient. In addition, maintenance work is simplified. For example, when an alarm or controller unit fails, only the faulty unit needs to be replaced without affecting the normal operation of other units.

[0036] Optionally, any of the controller units includes a controller power interface 5 and a controller ground interface 6, and the alarm 100 corresponding to any of the controller units includes an alarm power interface 101 and an alarm ground interface 102, the controller power interface 5 is connected to the alarm power interface 101, and the controller ground interface 6 is connected to the alarm ground interface 102 to power the alarm 100 through the controller unit.

[0037] Specifically, if Figure 2 As shown, each controller unit is provided with a power interface and a ground interface for providing power supply to its corresponding alarm 100. Each alarm is also provided with a power interface and a ground interface accordingly, which ensures the power supply required for the normal operation of the alarm 100, and at the same time improves the stability and anti-interference ability of the system through a good ground connection. When the alarm 100 needs power supply, the power interface of the controller unit is connected to the power interface of the alarm 100 through a connecting cable to realize the transmission of power. At the same time, in order to ensure the electrical safety performance of the system, the ground interfaces between the controller unit and the alarm 100 also need to be connected to each other through a dedicated cable to ensure that the current in the circuit can flow to the ground correctly, avoiding equipment damage or false alarms caused by potential differences. In addition, the alarm 100 and the controller unit can be provided with protective measures, such as overvoltage protection, short-circuit protection and other functions, to prevent system failure due to power fluctuations or failures.

[0038] In this optional embodiment, the controller unit is equipped with a power interface and a grounding interface, which ensures the stability and safety of the power supply. At the same time, the grounding interface can effectively reduce electromagnetic interference and ensure the normal operation of the system. The alarm 100 also has a power interface and a grounding interface, which ensure that the alarm 100 can obtain the necessary power supply from the controller unit, while also ensuring the stable operation of the alarm 100 itself. By setting the controller power interface, a centralized and stable power supply can be provided for the alarm 100, avoiding the need to separately lay out a power supply for each alarm, thereby reducing system complexity and installation costs. The connection between the controller power interface and the alarm power interface, as well as the connection between the controller grounding interface and the alarm grounding interface, not only simplifies the power supply method of the alarm 100, but also ensures the reliability of the power supply and grounding, thereby enhancing the working stability and response speed of the alarm 100. The direct connection method enables the alarm 100 to quickly obtain power support and issue an alarm signal in a timely manner when an abnormal situation occurs.

[0039] Optionally, any of the controller units includes a power input interface 1 , and the power input interface 1 is used to connect to an external power source 400 and the controller power interface 5 .

[0040] Specifically, if Figure 2 As shown, each alarm controller unit is equipped with a power input interface 1, which can be connected to an external power supply 400, such as the factory's power grid or a backup uninterruptible power supply system, with a voltage of usually 220V. The external power supply can be connected to the power input interface of the controller unit via a power cord, and the power input interface is connected to a power management circuit, which is responsible for converting the voltage of the external power supply into a voltage suitable for the internal components of the controller unit. Common power management circuits include power converters (such as DC-DC converters), voltage regulators, filters, etc. The output end of the power management circuit is connected to the controller power interface, which is used to provide power to the alarm 100 to ensure that the alarm controller unit can obtain a stable and continuous power supply. In addition, the alarm 100 and the controller unit can be set with protective measures, such as overvoltage protection, short circuit protection and other functions to prevent system failure due to power fluctuations or failures.

[0041] In this optional embodiment, it is possible to ensure that the alarm controller unit always has a reliable power supply, thereby ensuring the normal operation of the alarm 100 and the stability of the alarm system. In addition, the installation and maintenance of the system are simplified. It is only necessary to connect the power input interface to the external power supply to provide power to the entire system, without the need to configure a power line for each alarm separately. This not only improves the overall reliability of the system, but also reduces maintenance costs, while also enhancing the safety monitoring capabilities of the production area. The connection between the controller power interface 5 and the alarm 100 power interface and the connection between the controller grounding interface 62 and the alarm 100 grounding interface 2 not only simplifies the power supply method of the alarm 100, but also ensures the reliability of the power supply and grounding, thereby enhancing the working stability and response speed of the alarm 100. The direct connection method enables the alarm 100 to quickly obtain power support and issue an alarm signal in a timely manner when an abnormal situation occurs.

[0042] Optionally, the power input interface 1 includes a first power input interface 11 and a second power input interface 12 , the first power input interface 11 is connected to the phase line 401 of the external power supply 400 , and the second power input interface 12 is connected to the neutral line 402 of the external power supply 400 .

[0043] Specifically, if Figure 2 As shown, the first power input interface 11 is mainly used to connect to the phase line 401 (also known as the live wire) of the external power supply 400. It is the main carrier line of the alternating current. The phase line 401 provides the effective voltage in the power system and is the key to power transmission. The second power input interface 12 is connected to the neutral line 402 (also known as the zero line) of the external power supply 400. The neutral line 402 plays the role of balancing the current and providing a return path in the three-phase four-wire or single-phase two-wire power supply system. It ensures that the controller unit can obtain the necessary power supply from the external power supply 400, and by connecting to the phase line 401 and the neutral line 402 respectively, a complete current loop is formed, thereby ensuring the stability and safety of the power supply. In order to ensure safety and reliability, protective devices such as fuses or circuit breakers can be equipped at the connection points to prevent damage in the event of overload or short circuit. In addition, in order to further improve the safety of the system, circuits such as overvoltage protection and surge absorption can also be provided inside the controller unit to prevent fluctuations in the external power supply 400 from damaging the device.

[0044] In this optional embodiment, through the setting of this dual interface, the system can obtain power supply from the external power grid more stably, ensuring that the alarm controller 200 unit and the alarm 100 connected thereto can operate continuously and stably. This separate power input interface also helps to simplify the maintenance and troubleshooting of the electrical system, and the connection status of the phase line 401 and the neutral line 402 can be checked separately. By correctly connecting the phase line 401 and the neutral line 402, various electrical faults caused by improper power connection, such as short circuits and overloads, can be effectively prevented, thereby enhancing the safety and reliability of the entire system. The standard phase line 401 and neutral line 402 connection method is adopted, which not only improves the reliability of the system, but also reduces potential safety hazards, providing a solid guarantee foundation for the safety management of the gas production area.

[0045] Optionally, any of the controller units includes a backup power interface 3 and a backup ground interface 4, the backup power interface 3 being used to connect to the power input interface 1 and the alarm power interface 101 when the controller power interface 5 fails, and the backup ground interface 4 being used to connect to the alarm ground interface 102 when the controller ground interface 6 fails.

[0046] Specifically, if Figure 2 As shown, each alarm controller 200 unit is equipped with a backup power interface 3 and a backup ground interface 4 in addition to the regular power input interface 1 and ground interface 2. If the regular power input interface 1 or ground interface 2 fails, the backup power interface 3 can replace the original power interface and connect to the external power supply 400 and the alarm 100 power interface. The backup ground interface 4 can replace the original ground interface 2 and connect to the alarm 100 ground interface 2, ensuring continuous power supply to the alarm 100 and the system's electrical safety. The backup power interface 3 can be activated if the controller power interface 5 fails to ensure power supply continuity. If the controller power interface 5 fails, the backup power interface 3 can connect to the power input interface 1 and the alarm 100 power interface to continue providing power to the alarm 100. Similarly, if the controller ground interface 6 fails, the backup ground interface 4 can connect to the alarm ground interface 102 to ensure the system's grounding function remains effective. The use of the backup power interface 3 and backup ground interface 4 improves system redundancy and reliability, ensuring that the alarm system can continue to operate normally even if certain key components fail.

[0047] In this optional embodiment, by implementing this double-layer protection setting, it is ensured that the alarm 100 can still operate normally even if the main power supply or grounding system fails, thereby improving the reliability of the system. Each controller unit is equipped with a backup power interface 3. When the controller power interface 5 fails, the backup power interface 3 can automatically or manually switch the connection with the power input interface 1 and the alarm 100 power interface, thereby maintaining the normal operation of the alarm 100, improving the reliability and continuity of the system, and reducing the system downtime caused by power failure. Equipped with a backup grounding interface 4, it is ensured that when the controller grounding interface 6 fails, the system can still be connected to the alarm grounding interface 2 through the backup grounding interface 4, thereby maintaining the grounding performance of the system. This helps to prevent electrical safety hazards caused by poor grounding and reduce the risk of safety accidents caused by system failures. By adding a backup power interface 3 and a backup grounding interface 4, the system has a dual protection mechanism, which not only improves the redundancy and reliability of the system, but also enhances the safety of the system, ensuring that the alarm system can continue to work effectively under various circumstances, greatly reducing the impact of single-point failures on the entire system, and enhancing the stability and availability of the system.

[0048] Optionally, any of the controller units includes a first signal transmission interface 7, and the alarm corresponding to any of the controller units includes a second signal transmission interface 103, and the first signal transmission interface 7 is connected to the second signal transmission interface 103 to obtain the concentration signal transmitted by the alarm.

[0049] Specifically, if Figure 2 As shown, each alarm controller unit includes a first signal transmission interface 7. The first signal transmission interface 7 supports the RS485 communication standard and is used to establish a connection with the second signal transmission interface 103 of the alarm 100. The alarm 100 can be equipped with an internal sensor to detect the concentration level of a certain gas or substance in the surrounding environment (such as the concentration of CO gas) and convert the detection results into electronic signals. The electronic signals are transmitted to the first signal transmission interface 7 of the alarm controller 200 via the second signal transmission interface 103. After receiving these signals, the alarm controller 200 uploads the signals to the central control console 300 via the RS485 bus or other necessary hardware connection. The central control console 300 can present the signals in a visual manner, allowing operators to monitor the status of each alarm 100 in real time in the central control room. Through this signal transmission interface, the alarm controller 200 can receive the concentration data transmitted by the alarm 100 in real time, and then perform corresponding processing and response. This real-time data transmission not only improves the system's response speed, but also enhances the ability to monitor environmental changes, ensuring that the system can take timely measures to address potential dangers.

[0050] In this optional embodiment, effective monitoring of the CO concentration in the gas production area is achieved. When the alarm 100 detects an abnormal CO concentration, it can promptly transmit the signal to the alarm controller 200, and then upload it to the central control console 300, ensuring that the operator can take prompt action to reduce the possibility of accidents. In addition, due to the use of RS485 communication, this connection method can not only support long-distance data transmission, but also has strong anti-interference capabilities, ensuring the stability and accuracy of data transmission. This not only improves the reliability of the system, but also provides technical support for improving the safety management level of the gas production area. By setting a signal transmission interface between the controller unit and the alarm 100 and ensuring that these interfaces can be effectively connected, the system realizes real-time monitoring of the concentration signal, improves the reliability of data transmission, and enables the controller to quickly issue an alarm or take other safety measures when the concentration reaches a preset threshold, thereby effectively reducing potential safety risks and protecting the safety of personnel and equipment.

[0051] Optionally, any of the controller units includes a signal transmission interface 8, 9, and the signal transmission interface 8, 9 is connected to the preset serial interface.

[0052] Specifically, if Figure 2 As shown, each alarm controller unit includes signal transmission interfaces 8 and 9, which are connected to a preset serial interface. The data collected through these interfaces can be transmitted to the central control console 300 via RS485 or other preset serial communication methods, ensuring the reliability of data transmission of the alarm 100. At the same time, it also ensures that the data can be received and processed in a timely manner by the central control console 300, thereby achieving the goal of real-time monitoring and centralized management. For example, when the alarm 100 detects a change in CO concentration, the concentration signal is sent to the alarm controller 200 through the second signal transmission interface 103 and the first signal transmission interface 7. After receiving the signal, the alarm controller 200 uploads the signal to the central control console 300 via the RS485 communication method, thereby achieving centralized management of the alarm 100 data. In order to ensure the accuracy and stability of data transmission, the RS485 interface is usually configured with appropriate parameters such as baud rate and data bits, and the data exchange format is standardized by the Modbus RTU communication protocol.

[0053] In this optional embodiment, the connection between signal transmission interfaces 8 and 9 and a pre-set serial interface ensures that data collected from the alarm can be transmitted to the central control console 300 via a standardized communication protocol (such as RS485), facilitating centralized management and real-time monitoring. This enables centralized management of fixed CO alarms in the gas production area, ensuring that alarm 100 status information can be accurately and real-timely transmitted to the central control console 300, reducing the risk of data loss or delay, ensuring the integrity and real-time nature of data transmission, and enhancing system reliability. Operators can use the graphical user interface on the central control console 300 to monitor the status of each alarm in real time. If an anomaly is detected, immediate action can be taken to prevent an accident. In addition, the use of a standardized RS485 serial interface provides the system with good compatibility and scalability, facilitating future upgrades or expansion of the number of alarms, effectively improving the safety management level of the production area. By providing signal transmission interfaces in the controller unit and connecting these interfaces to the pre-set serial interface, not only is the reliability and real-time nature of data transmission improved, but the centralized management and monitoring capabilities of the system are also enhanced, thereby improving the safety management level of the entire gas production area.

[0054] Optionally, it further includes a connection terminal 500, which is respectively connected to the preset serial interface and the signal transmission interface of each controller unit.

[0055] Specifically, if Figure 2 As shown, the system also includes a terminal block 500 for connecting to a preset serial interface and the signal transmission interface of each controller unit. One end of the terminal block connects to a preset serial interface (e.g., RS485), which serves as the backbone for uploading data to the central control console. The other end connects to the signal transmission interface of each controller unit, which collects concentration signals from the alarm. For example, when alarm 100 detects a change in CO concentration, it transmits the signal via its own signal transmission interface to the controller unit. The controller unit then forwards the signal to the preset serial interface via terminal block 500, which then uploads it to the central control console 300 for centralized management. This ensures a clear and reliable data transmission path from alarm 100 to controller unit and then to central control console 300, simplifying system wiring and improving connection reliability and ease of maintenance. Through proper wiring and connection, signal interference can be avoided, ensuring accurate data transmission. Furthermore, the introduction of terminal block 500 facilitates system expansion. When adding more controller units, simply connect the signal transmission interface of the new controller unit to terminal block 500. The connection terminal 500 may be provided with a standardized interface to facilitate connection with different types of devices.

[0056] In this optional embodiment, the introduction of terminal block 500 simplifies and streamlines the connections between various components in the system. Acting as a hub, it effectively organizes and manages data lines from multiple controller units, reducing wiring complexity. The connection of terminal block 500 to a pre-set serial interface ensures that data from all controller units can be smoothly uploaded to the central console. This centralized connection simplifies the data transmission path and improves data transmission efficiency and reliability. Terminal block 500 connects to the signal transmission interface of each controller unit, ensuring that data from each controller unit is aggregated and ultimately transmitted to the central console via the terminal block. This not only improves data centralization but also facilitates system management and maintenance. The introduction of terminal block 500 also simplifies system maintenance. If a problem occurs in a particular link, the fault point can be quickly located by inspecting the terminal block. Terminal block 500 also provides excellent system scalability. When adding new alarms or controller units, simply connect the signal transmission interface of the new device to the existing terminal block, eliminating the need for rewiring or modifying the existing system structure, significantly reducing the cost and complexity of system expansion. This significantly improves system reliability and management efficiency, providing strong support for safe management in gas production areas. By introducing the 500 terminal block and connecting it to the pre-set serial interface and the signal transmission interface of each controller unit, it not only simplifies system wiring, improves connection reliability and system maintainability, but also enhances system scalability and facilitates system upgrades.

[0057] Optionally, any of the controller units includes a status display component, and the status display component is used to display the level of the gas concentration.

[0058] Specifically, if Figure 2As shown, each controller unit is equipped with a status display component that displays the gas concentration level detected by the alarm. This status display component can take various forms, such as LEDs, LCD displays, or other visual displays, to intuitively inform operators of the current safe gas concentration level. If the status display component is a set of LED indicators, it is mounted on the panel of the alarm controller unit. These LED indicators have different colors or flashing patterns corresponding to different gas concentration levels. When the alarm detects a change in CO concentration, it transmits a concentration signal to the alarm controller unit. The controller determines the gas concentration level based on preset concentration thresholds and displays it through the corresponding LED indicators in the status display component. For example, green may indicate a normal level, yellow a warning level, and red an emergency level. Alternatively, the status display component may include a liquid crystal display (LCD) or a small touchscreen to display specific gas concentration values or other relevant information. Operators can quickly understand the gas concentration conditions in each area and take appropriate safety measures in a timely manner, thereby improving overall safety management.

[0059] In this optional embodiment, the status display component provides an intuitive display of gas concentration levels, eliminating the need for complex data query operations. This improves operational efficiency and the operator's perception of on-site conditions. In emergency situations, this immediate visual prompt can help operators make quick decisions and take necessary emergency measures, thereby minimizing potential hazards. The status display component directly displays gas concentration levels, allowing operators to immediately identify areas that may pose safety hazards, allowing for timely preventive or emergency measures. The visual design of the status display component allows for quick determination of the alarm status, reducing delays or misjudgments that can result from misunderstandings, enhancing overall system safety management, and helping to reduce the probability of safety incidents. Furthermore, the status display component's simple and clear information display ensures clear information transmission even in dimly lit or noisy production environments, enhancing the system's practicality and reliability. This not only improves safety management in production areas but also provides operators with more effective tools to address various potential safety threats.

[0060] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A gas alarm system, characterized in that: The invention comprises an alarm (100), an alarm controller (200) and a central console (300), wherein the alarm (100) is connected to the alarm controller (200), and the alarm controller (200) is communicatively connected to the central console (300). The alarm (100) is located in a gas production area, and the alarm (100) is used to collect the gas concentration in the gas production area and transmit a concentration signal corresponding to the gas concentration to the alarm controller (200). The alarm controller (200) is used to transmit the concentration signal transmitted by the alarm (100) to the central console (300) via a preset serial interface.

2. The gas alarm system according to claim 1, characterized in that: The alarm controller (200) includes a plurality of controller units, any of which is connected to the corresponding alarm (100), and the plurality of controller units are communicatively connected to the central console (300) via the preset serial interface.

3. The gas alarm system according to claim 2, characterized in that: Any of the controller units includes a controller power interface (5) and a controller ground interface (6), and the alarm (100) corresponding to any of the controller units includes an alarm power interface (101) and an alarm ground interface (102), wherein the controller power interface (5) is connected to the alarm power interface (101), and the controller ground interface (6) is connected to the alarm ground interface (102), so as to supply power to the alarm (100) through the controller unit.

4. The gas alarm system according to claim 3, characterized in that: Any of the controller units comprises a power input interface (1), and the power input interface (1) is used to connect to an external power source (400) and the controller power interface (5).

5. The gas alarm system according to claim 4, characterized in that: The power input interface (1) comprises a first power input interface (11) and a second power input interface (12), wherein the first power input interface (11) is connected to a phase line (401) of the external power source (400), and the second power input interface (12) is connected to a neutral line (402) of the external power source (400).

6. The gas alarm system according to claim 4, characterized in that: Any of the controller units comprises a backup power interface (3) and a backup ground interface (4), wherein the backup power interface (3) is used to connect to the power input interface (1) and the alarm power interface (101) when the controller power interface (5) fails, and the backup ground interface (4) is used to connect to the alarm ground interface (102) when the controller ground interface (6) fails.

7. The gas alarm system according to claim 2, characterized in that: Any of the controller units includes a first signal transmission interface (7), and the alarm corresponding to any of the controller units includes a second signal transmission interface (103), and the first signal transmission interface (7) is connected to the second signal transmission interface (103) to obtain the concentration signal transmitted by the alarm.

8. The gas alarm system according to claim 2, characterized in that: Any of the controller units comprises a signal transmission interface (8, 9), and the signal transmission interface (8, 9) is connected to the preset serial interface.

9. The gas alarm system according to claim 8, characterized in that: It also includes a connection terminal (500), and the connection terminal (500) is respectively connected to the preset serial interface and the signal transmission interface (8, 9) of each controller unit.

10. The gas alarm system according to claim 2, characterized in that: Any of the controller units includes a status display component, which is used to display the level of the gas concentration.

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