Digital fire-fighting internet-of-things device for transformer substation

Abstract

The invention discloses a transformer substation digital fire-fighting internet-of-things device, which comprises a digital fire-fighting internet-of-things device and a fire alarm controller, and is characterized in that the digital fire-fighting internet-of-things device comprises a main board, an analog communication board, a start-stop double-control board, an expansion board, a power board and a front panel; a digital fire-fighting Internet of Things device and a fire alarm controller are adopted, the digital fire-fighting Internet of Things device comprises a main board, an analog communication board, a start-stop double-control board, an expansion board, a power board and a front panel, and the digital fire-fighting Internet of Things device serves as a special information acquisition and conversion device at a substation end. The system can send received regional fire alarm controller information, independent fixed fire extinguishing system operation, state information, analog acquisition information, controlled fire-fighting facility control and control feedback information, loop fault information and the like to a fire-fighting monitoring main station, and sends a control instruction issued by the fire-fighting monitoring main station to related fire-fighting facilities.

Description

Technical Field

[0001] The present invention relates to the field of digital fire fighting technology, and in particular to a digital fire fighting IoT device for a substation. Background Art

[0002] As one of the main forms of energy utilization in the world today, electricity plays a vital role in economic and social development. The safe and stable operation of the power grid is one of the basic conditions for ensuring national security, energy security, social stability and people's happiness.

[0003] Substations are the key link in power transmission and distribution in power grids, and are the infrastructure to ensure the stable operation of power systems and safe and reliable power supply. With the development of the economy, the scale of power grids continues to expand, and the current carrying capacity of power supply loads continues to increase, which puts higher requirements on the fire safety level of substations. It causes huge property losses, directly threatens the safe and stable operation of power grids, and even causes large-scale power outages, bringing immeasurable economic losses and social impacts.

[0004] 1. The fire protection design standards are not perfect. They are basically based on the traditional construction standard fire protection design, without considering the particularities of substations and booster stations.

[0005] 2. Most fire protection system brands do not have a unified interface protocol. There are more than 50 types of system products. The host protocols of each fire protection brand are private protocols and there is no unified interface protocol.

[0006] 3. The linkage between the main and auxiliary equipment is weak. Due to the inability to collect variable data of fire-fighting equipment, it is impossible to realize multiple logic control methods with the main equipment, especially the main transformer, which breaks the linkage between the main and auxiliary systems and greatly reduces the feasibility and intelligence of the fire-fighting system.

[0007] 4. Manual regular inspections may reveal missed inspections and missed records.

[0008] Therefore, a digital fire protection IoT device for substations has become an urgent problem to be solved by the entire society. Summary of the invention

[0009] In order to solve the above technical problems, the technical solution provided by the present invention is: a substation digital fire protection IoT device, including a digital fire protection IoT device and a fire alarm controller, wherein the digital fire protection IoT device includes a main board, an analog communication board, a plurality of start-stop dual control boards, an expansion board, a power board and a front panel distributed from left to right;

[0010] The mainboard is provided with a LAN communication port and an optical fiber interface, and the mainboard realizes information uploading and receiving through the LAN communication port and the optical fiber interface; the mainboard is responsible for managing the operation of each functional module, establishing transceiver communication with the upper-layer gateway machine, obtaining instructions issued by the upper-layer gateway machine, and processing and uploading data from each functional module of the device;

[0011] The analog communication board is provided with an adaptive interface for communicating with other devices. After receiving the signal sent by the device through the adaptive interface, the analog communication board uploads the signal to the fire alarm controller through the LAN communication port or optical fiber interface of the main board; the analog communication board is responsible for collecting the real-time analog quantity of the terminal, receiving the communication of other devices, and transmitting it to the main board for data integration after completing the preliminary data processing;

[0012] The start-stop dual control board is used to connect the controlled fire-fighting facilities in the control station. The start-stop dual control board adopts 8-way three-wire start-stop control to start, feedback, and display fault information; the start-stop dual control board can control the start-up of the terminal device switch and monitor the real-time status of each terminal; after the main board receives the instruction sent by the upper layer, the main board synchronously sends it to the start-stop dual control board, and the terminal device at the corresponding position is turned on by the start-stop dual control board;

[0013] The expansion board is responsible for processing the B code timing data and transferring it to the main board;

[0014] The mainboard receives remote control instructions through the LAN communication port and the optical fiber interface;

[0015] The power board is powered by AC 220V, and a control switch is provided on the power board to simultaneously turn on or off the AC and DC power supplies. The power board is responsible for the power supply of the entire device;

[0016] The front panel is provided with a display screen and a display light to realize human-computer interaction. The start-stop dual control panel is displayed through the display screen and the display light. The status parameters of the digital fire protection Internet of Things device are read through the panel, and command operations can be performed through buttons.

[0017] Furthermore, the adaptive interface on the analog communication board is RS232 or RS485, so as to perform RS232 or RS485 communication with other devices.

[0018] Furthermore, the analog communication board is provided with 7 analog signal inputs, namely analog signal A1P to analog signal A7P and analog signal A1N to analog signal A7N, for accessing 4-20mA current signal or 0V-5V voltage signal, and the analog communication board is provided with 6 RS485 for RS485 communication with other devices, and the analog communication board is provided with 1 CAN bus interface for CAN communication with other devices.

[0019] The advantages of the invention compared with the prior art are:

[0020] The present invention uses multi-layer logic strategy control to break through the information barriers of the main and auxiliary systems, and realizes intelligent substation fire protection through preset logic and main and auxiliary linkage.

[0021] The present invention adopts a digital fire protection Internet of Things device and a fire alarm controller, wherein the digital fire protection Internet of Things device includes a main board, an analog communication board, a start-stop dual control board, an expansion board, a power board and a front panel. The digital fire protection Internet of Things device serves as a special information acquisition and conversion device at the substation end, and can send the received regional fire alarm controller information, independent fixed fire extinguishing system operation, status information, analog quantity acquisition information, controlled fire protection facility control and control feedback information, loop fault information, etc. to the fire protection monitoring main station, and send the control instructions issued by the fire protection monitoring main station to the relevant fire protection facilities.

[0022] The present invention can realize comprehensive monitoring and control of fire alarm information, analog quantity acquisition information, status information of controlled firefighting facilities and start-stop action feedback information of substations and fire-related equipment without manual regular inspections.

[0023] The digital fire fighting Internet of Things device of the present invention can access various types of station terminal systems and important information of front-end equipment and manage them in a unified manner through abundant interfaces such as RJ45, RS-485, RS-232, 4-20mA analog interfaces, and software communication buses. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural schematic diagram of a digital fire protection IoT device for a substation according to the present invention; Figure 2 This is an internal schematic diagram of a digital fire protection IoT device for a substation according to the present invention; Figure 3 It is a structural diagram of the mainboard; Figure 4 It is a schematic diagram of the structure of the simulation communication board; Figure 5 This is a structural diagram of the start-stop dual control panel; Figure 6 It is a schematic diagram of the structure of the expansion board; Figure 7 It is a schematic diagram of the structure of the power board; Figure 8 The present invention is a topological diagram of a digital fire protection IoT device for a substation.

[0032] Among them, 1. Digital fire fighting Internet of Things device, 1-1. Main board, 1-2. Analog communication board, 1-4. Start-stop dual control board, 1-5. Expansion board, 1-6. Power board, 1-7. Front panel, 1-71. Display screen, 1-72. Display light, 1-73. Upper control button, 1-74. Lower control button, 1-75. Left control button, 1-76. Right control button, 1-77. Confirm button, 1-78. Exit button, 1-79. Reset button, 1-80. Function button, 1-721. Power working indicator light, 1-722. Standby indicator light, 1-723. Communication fault indicator light, 1-724. Communication fault indicator light, 1-725. Power fault indicator light, 1-726. Reserved standby indicator light, 1-727. Total action indicator light, 1-728. Total feedback indicator light, 1-729. Fault indicator light. DETAILED DESCRIPTION

[0033] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0034] The present invention is described in detail with reference to the accompanying drawings.

[0035] The present invention provides a substation digital fire protection IoT device in a specific implementation, including a digital fire protection IoT device 1 and a fire alarm controller 2, wherein the digital fire protection IoT device includes a main board 1-1, an analog communication board 1-2, a plurality of start-stop dual control boards 1-4, an expansion board 1-5, a power board 1-6 and a front panel 1-7, which are distributed from left to right;

[0036] The mainboard 1-1 is provided with a LAN communication port and an optical fiber interface, and the mainboard 1-1 realizes information uploading and receiving through the LAN communication port and the optical fiber interface; the mainboard 1-1 is responsible for managing the operation of each functional module, establishing transceiver communication with the upper-layer gateway machine, obtaining instructions issued by the upper-layer gateway machine, and processing and uploading data from each functional module of the device;

[0037] The analog communication board 1-2 is provided with an adaptive interface for communicating with other devices. After receiving the signal sent by the device through the adaptive interface, the analog communication board 1-2 uploads the signal to the fire alarm controller 2 through the LAN communication port or optical fiber interface of the main board 1-1; the analog communication board 1-2 is responsible for collecting the real-time analog quantity of the terminal and receiving the communication of other devices, and transmitting it to the main board 1-1 for data integration after completing the preliminary data processing;

[0038] The start-stop dual control board 1-4 is used to connect the controlled fire-fighting facilities in the control station. The start-stop dual control board 1-4 adopts 8-way three-wire start-stop control for starting, feedback, and displaying fault information; the start-stop dual control board 1-4 can control the start-up of the terminal device switch and monitor the real-time status of each terminal; after the main board 1-1 receives the instruction sent by the upper layer, the main board 1-1 synchronously sends it to the start-stop dual control board 1-4, and the terminal device at the corresponding position is turned on by the start-stop dual control board 1-4;

[0039] The expansion board 1-5 is responsible for processing the B code timing data and transferring it to the main board 1-1;

[0040] The main board 1-1 receives remote control commands through the LAN communication port and the optical fiber interface, and the start-stop dual control board 1-4 controls the controlled firefighting facilities in the station in a hard-wired manner;

[0041] The power board 1-6 is powered by AC 220V. A control switch 1-61 is provided on the power board 1-6 to simultaneously turn on or off the AC and DC power supplies. The power board 1-6 is responsible for the power supply of the entire device.

[0042] The front panel 1-7 is provided with a display screen 1-71 and a display light 1-72 to realize human-computer interaction. The start-stop dual control panel 1-4 is displayed through the display screen 1-71 and the display light 1-72. The status parameters of the digital fire fighting Internet of Things device are read through the panel, and command operations can be performed through buttons.

[0043] Embodiment 1:

[0044] The following is a detailed introduction to the structural functions of the main board 1-1, analog communication board 1-2, start-stop dual control board 1-4, expansion board 1-5, power board 1-6 and front panel 1-7:

[0045] 1. The function table of main board 1-1 is as follows:

[0046] Serial number name Functional Description 1 LAN1-LAN4 4 independent network ports, each with 1 IP address for network communication 2 FX1, FX2 2 optical ports, each with 1 IP address for optical network communication 3 FX1 LINK Green, on, optical port 1 is connected; off, optical port 1 is not connected 4 FX2 LINK Green, on, optical port 2 is connected; off, optical port 2 is not connected 5 FX1 ACT Green, flashing, optical port 1 data communication; off, optical port 1 no communication 6 FX2 ACT Green, flashing, optical port 1 data communication; off, optical port 1 no communication 7 CONSOLE Debug serial port, baud rate 115200, configure device parameters, etc.

[0047] 2. The function table of analog communication board 1-2 is as follows:

[0048]

[0049] 3. The function table of the start-stop dual control panel 1-4 is as follows:

[0050]

[0051] 4. The function table of expansion boards 1-5 is as follows:

[0052]

[0053]

[0054] 5. The function table of power boards 1-6 is as follows:

[0055] Serial number name Functional Description 1 AC power interface AC 220V power supply 2 switch Turn on or off the AC and DC power supplies simultaneously

[0056] In the present invention, the digital fire protection Internet of Things device 1 is working, and receives the upward signal through the analog communication board 1-2485 communication, and uploads it to the centralized fire alarm controller 2 through the LAN communication port and optical fiber interface on the main board 1-1 within 10S. The LAN communication port and optical fiber interface of the main board 1-1 receive the remote control command, and the start-stop dual control board 1-3 controls the controlled fire protection facilities in the station in a hard-wired manner within 1s. The start-stop dual control board 1-3 outputs information such as startup, feedback, and fault of the feedback hard-wire interface group. The information output by the start-stop dual control board 1-3 can be displayed in various forms such as a display screen 1-71 and a display light 1-72. The above-mentioned digital fire protection Internet of Things device 1 is connected to the fire alarm controller 2, and through multi-layer logic strategy control, the information barriers of the main and auxiliary systems are broken through. Through preset logic and main and auxiliary linkage, the intelligent fire protection of the substation is realized.

[0057] The controlled firefighting facilities in the control station include water spray fire extinguishing system for main transformer, high-pressure fine water mist fire extinguishing system for main transformer, cabinet-type heptafluoropropane fire extinguishing device, hot aerosol fire extinguishing device, hanging ultra-fine dry powder fire extinguishing device, water firefighting and fire hydrant. The above-mentioned firefighting equipment includes manual and automatic fire extinguishing equipment.

[0058] 6. The functions of the front panel 1-7 are as follows:

[0059] The left functional area of ​​the front panel includes the following display components, the display light 1-72 includes a power working indicator light 1-721, a standby indicator light 1-722, a communication fault indicator light 1-723, a communication fault indicator light 1-724, a power fault indicator light 1-725, a reserved standby indicator light 1-726, a total action indicator light 1-727, a total feedback indicator light 1-728 and a fault indicator light 1-729, which are arranged in sequence from top to bottom. The reserved standby indicator light 1-726 is used as a reserved indicator light and is not used.

[0060] Through the independent setting of the above-mentioned multiple display lights, they can be used to display power supply operation, standby, communication failure, power supply failure, standby, total action, total feedback, and failure respectively.

[0061] The function area in the middle is display screen 1-71, which displays information of four modules: real-time data, historical data, system information, and settings.

[0062] The right functional area is as follows:

[0063] The front panel 1-7 is provided with an upper control button 1-73, a lower control button 1-74, a left control button 1-75 and a right control button 1-76. The upper control button 1-73, the lower control button 1-74, the left control button 1-75 and the right control button 1-76 are used to move the focus on the display screen 1-71. The front panel 1-7 is provided with a confirmation button 1-77, an exit button 1-78, a reset button 1-79 and a function button 1-80.

[0064] The upper control button 1-73, the lower control button 1-74, the left control button 1-75 and the right control button 1-76 are used to move the focus on the display screen 1-71, and move the position of the foot pad on the display screen in four directions: up, down, left and right.

[0065] Confirm button 1-77 triggers the focus button. For example, when the focus is on button "A", clicking the confirm button is equivalent to clicking button "A".

[0066] Exit button 1-78, click this button to exit the currently activated module. For example, when the focus is on the input method panel, click the exit button to exit the input method panel and the input method panel disappears. When the focus is on the "Real-time Data" module interface, click the exit button to exit the "Real-time Data" module and the "Real-time Data" related interface disappears.

[0067] Reset button 1-79. When you click the reset button, the focus will be relocated to the first-level menu, simplifying the tedious operation of moving the focus.

[0068] Function keys 1-80 are used for function list.

[0069] The functions of the present invention are as follows:

[0070] 1. Comprehensive monitoring: Comprehensively monitor and control the fire alarm information, analog quantity acquisition information, status information of controlled fire-fighting facilities, and start-stop action feedback information of substations and fire-related equipment.

[0071] 2. Dynamic configuration: through the host computer configuration software, the FTT equipment meets the on-site requirements of substations / converter stations of various voltage levels from 110kV to 1000kV.

[0072] 3. Start and stop the facilities, receive control commands from the fire monitoring main station, and start and stop the controlled fire protection facilities through hard wiring.

[0073] 4. Linkage between main and auxiliary equipment, formulate linkage logic between substation main equipment alarm and fire alarm signal to initiate fixed fire extinguishing measures.

[0074] 5. Internet of Things communication, supporting the MQTT communication protocol of the Internet of Things model of the Southern Power Grid Digital Research Institute.

[0075] 6. Security management, complete permission function and log function, ensure the security of the system, and provide a basis for security audit and troubleshooting.

[0076] The present invention has the following specific features:

[0077] 1. Autonomous and controllable, using domestically produced chips and core boards that support the power Hongmeng system to achieve complete autonomous control. It meets the various performance requirements of the power grid and equipment in terms of operating environment conditions, electrical insulation performance, mechanical properties, electromagnetic compatibility, power consumption, and network security.

[0078] 2. Protocol analysis: The device has rich protocol analysis functions. Through built-in equipment protocols of different fire protection manufacturers, it is compatible with the communication protocols of all brands and models of equipment currently used in substations. It can realize the refined access of fire protection equipment and can locate and control each terminal device without replacing the fire alarm host.

[0079] 3. Information filtering: The device has the function of filtering false alarm information. In actual use, due to the equipment problems of the fire detector itself, frequent false alarm signals often appear, which seriously affects the actual monitoring effect. By using data modeling and analysis technology, abnormal fault signals can be filtered out and not uploaded to the centralized control center. Only normal equipment fault signals are uploaded to the centralized control center.

[0080] 4. Hardware interface: The device can access various types of substation terminal systems and important information of front-end equipment through rich interfaces such as RJ45, RS-485, RS-232, 4-20mA analog interfaces, and software communication buses, and manage them in a unified manner. It combines intelligent decision-making libraries, control strategies, etc., and adopts edge intelligent AI analysis and decision-making to meet higher control requirements for substation fire protection systems.

[0081] 5. Remote control: the device can receive control commands from the fire monitoring main station and start and stop the controlled fire-fighting facilities by opening lines through hard wiring; it monitors the connection between the control and control feedback lines of the controlled equipment, and when a line fault such as open circuit or short circuit occurs, the fault information and category will be uploaded.

[0082] 6. Stable operation. The device has complete self-diagnosis, recording and reporting functions for its own and front-end equipment's operation status. It has 24-hour monitoring and management functions for fire-fighting equipment. It can timely diagnose the online status of the equipment, count important indicators such as the equipment's online time and online rate, and upload them to the main station.

[0083] In order to facilitate the communication of the analog communication board, the adaptive interface on the analog communication board 1-2 is RS232 or RS485, so as to perform RS232 or RS485 communication with other devices.

[0084] As a further elaboration of the present invention, the analog communication board 1-2 is provided with 7 analog signal inputs, namely analog signal A1P to analog signal A7P and analog signal A1N to analog signal A7N, for accessing 4-20mA current signal or 0V-5V voltage signal, and the analog communication board 1-2 is provided with 6 RS485 for RS485 communication with other devices, and the analog communication board 1-2 is provided with 1 CAN bus interface for CAN communication with other devices.

[0085] In order to facilitate the use of the expansion board, the expansion board 1-5 is provided with a CAN cascade interface and a CAN cascade interface for expanding the start-stop control.

[0086] In order to facilitate monitoring of on-site information, the fire alarm controller 2 is connected with monitoring devices and equipment, including point-type smoke detectors, point-type temperature detectors, temperature-sensitive cable detectors and manual alarm buttons. The fire alarm control can also receive feedback from automatic fire extinguishing equipment and emergency evacuation equipment. The above structure can realize comprehensive monitoring and control of fire alarm information, analog quantity collection information, status information of controlled fire-fighting facilities, and start-stop action feedback information of substations and fire-related equipment.

[0087] As a further elaboration of the present invention, the digital fire protection Internet of Things device 1 is connected to an analog transmitter, an early warning system, an infrared flame temperature detector and a linear temperature-sensitive optical fiber detector. Monitoring information is sent to the digital fire protection Internet of Things device 1 through the analog transmitter, and feedback is given to the digital fire protection Internet of Things device through the early warning system, the infrared flame temperature detector and the linear temperature-sensitive optical fiber detector.

[0088] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A digital fire protection IoT device for a substation, characterized by: The invention comprises a digital fire fighting Internet of Things device (1) and a fire alarm controller (2), wherein the digital fire fighting Internet of Things device comprises, from left to right, a main board (1-1), an analog communication board (1-2), a plurality of start-stop dual control boards (1-4), an expansion board (1-5), a power board (1-6) and a front panel (1-7); The main board (1-1) is provided with a LAN communication port and an optical fiber interface, and the main board (1-1) realizes information uploading and receiving through the LAN communication port and the optical fiber interface; the main board (1-1) is responsible for managing the operation of each functional module, establishing transceiver communication with the upper-layer gateway machine, obtaining instructions sent by the upper-layer gateway machine, and processing and uploading data of each functional module of the device; The analog communication board (1-2) is provided with an adaptive interface for communicating with other devices. After receiving the signal sent by the device through the adaptive interface, the analog communication board (1-2) uploads the signal to the fire alarm controller (2) through the LAN communication port or optical fiber interface of the main board (1-1); the analog communication board (1-2) is responsible for collecting the real-time analog quantity of the terminal and receiving the communication of other devices, and after completing the preliminary data processing, transmits it to the main board (1-1) for data integration; The start-stop dual control board (1-4) is used to connect the controlled fire-fighting facilities in the control station. The start-stop dual control board (1-4) adopts an 8-way three-wire start-stop control system to start, feedback, and display fault information; the start-stop dual control board (1-4) can control the start-up of the terminal device switch and can monitor the real-time status of each terminal; after the main board (1-1) receives the instruction sent by the upper layer, the main board (1-1) synchronously sends it to the start-stop dual control board (1-4), and the terminal device at the corresponding position is turned on by the start-stop dual control board (1-4); The expansion board (1-5) is responsible for processing the B code timing data and transferring it to the main board (1-1); The mainboard (1-1) receives remote control instructions through the LAN communication port and the optical fiber interface; The power board (1-6) is powered by an AC 220V power supply. A control switch (1-61) is provided on the power board (1-6) for simultaneously turning on or off the AC and DC power supplies. The power board (1-6) is responsible for the power supply of the entire device. The front panel (1-7) is provided with a display screen (1-71) and a display light (1-72) to realize human-computer interaction; the start-stop dual control panel (1-4) displays status parameters through the display screen (1-71) and the display light (1-72); the status parameters of the digital fire fighting Internet of Things device are read through the panel, and command operations can be performed through buttons.

2. A substation digital fire protection IoT device according to claim 1, characterized in that: The adaptive interface on the analog communication board (1-2) is RS232 or RS485, so as to be used for RS232 or RS485 communication with other devices.

3. A substation digital fire protection IoT device according to claim 1, characterized in that: The analog communication board (1-2) is provided with 7 analog signal inputs, namely analog signal A1P to analog signal A7P and analog signal A1N to analog signal A7N, for accessing 4-20mA current signals or 0V-5V voltage signals. The analog communication board (1-2) is provided with 6 RS485s for RS485 communication with other devices. The analog communication board (1-2) is provided with 1 CAN bus interface for CAN communication with other devices.

4. A substation digital fire protection IoT device according to claim 1, characterized in that: The expansion board (1-5) is provided with a CAN cascade interface and a CAN cascade interface for expanding start-stop control.

5. A substation digital fire protection IoT device according to claim 1, characterized in that: The display lights (1-72) include a power supply working indicator light (1-721), a standby indicator light (1-722), a communication fault indicator light (1-723), a communication fault indicator light (1-724), a power supply fault indicator light (1-725), a reserved standby indicator light (1-726), an action total indicator light (1-727), a feedback total indicator light (1-728) and a fault indicator light (1-729) which are arranged in sequence from top to bottom. The reserved standby indicator light (1-726) is used as a reserved indicator light and is not used.

6. A substation digital fire protection IoT device according to claim 5, characterized in that: The front panel (1-7) is provided with an upper control button (1-73), a lower control button (1-74), a left control button (1-75) and a right control button (1-76); the upper control button (1-73), the lower control button (1-74), the left control button (1-75) and the right control button (1-76) are used to move the focus on the display screen (1-71); the front panel (1-7) is provided with a confirmation button (1-77), an exit button (1-78), a return button (1-79) and a function button (1-80).

7. A substation digital fire protection IoT device according to claim 6, characterized in that: The controlled fire-fighting facilities in the control station include a main transformer water spray fire extinguishing system, a main transformer high-pressure fine water mist fire extinguishing system, a cabinet-type heptafluoropropane fire extinguishing device, a hot aerosol fire extinguishing device, a suspended ultra-fine dry powder fire extinguishing device, water fire fighting and a fire hydrant.

8. A substation digital fire protection IoT device according to claim 1, characterized in that: The fire alarm controller (2) is connected to a monitoring device and equipment, wherein the monitoring device comprises a point-type smoke detector, a point-type temperature detector, a temperature-sensitive cable detector and a manual alarm button.

9. A substation digital fire protection IoT device according to claim 1, characterized in that: The digital fire protection Internet of Things device (1) is connected to an analog quantity transmitter, and monitoring information is sent to the digital fire protection Internet of Things device (1) via the analog quantity transmitter.

Images