Power distribution station house environment monitoring device based on CLT1 protocol

Abstract

The invention discloses a power distribution station house environment monitoring device based on a CLT1 protocol, which relates to the technical field of power distribution station house safety monitoring equipment and comprises a modular mechanical body structure and a CLT1 protocol function limiting system running on the modular mechanical body structure. According to the invention, the device compatibility is greatly improved through a unified shell and a standardized sensor interface which are modularly designed, so that a single device can adapt to various monitoring requirements, the installation flexibility is remarkably enhanced through a magnetic attraction and punching double-fixing structure, the alarm response time is shortened by a CLT1 protocol running on the device through an active reporting mechanism, and the safety of the device is improved. The delay problem of a traditional master-slave protocol is solved, the communication reliability is ensured by a data packet retransmission mechanism, ultra-low power consumption operation is realized by intelligent dormancy controlled by the protocol and cutting off of a power supply loop, the endurance time is greatly prolonged, and the design of deep collaboration of software and hardware has a good application prospect. And the compatibility, the response real-time performance, the communication reliability and the cruising ability of the device are remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of safety monitoring equipment for power distribution rooms, specifically to an environmental monitoring device for power distribution rooms based on the CLT1 protocol. Background Technology

[0002] As a critical node in the power system, the stability of the internal environment of a power distribution station directly affects the safe operation of power equipment. Currently, environmental monitoring in power distribution stations often adopts a combination of "distributed sensors + acquisition modules," which has significant defects in mechanical structure and functional implementation. In terms of mechanical structure, existing devices have problems such as "poor compatibility, limited installation, and insufficient protection". Different monitoring parameters require separate sensor housings and acquisition PCB mounting boards. For example, gas monitoring and temperature monitoring use dedicated equipment, resulting in a variety of equipment and chaotic on-site layout. The installation method is mostly simple drilling and fixing, which cannot be adapted to different installation scenarios such as metal cabinets and walls in power distribution rooms. The outer shell protection structure is poorly designed, and water ingress and dust accumulation are prone to failure in humid and dusty station environments, affecting the life of the equipment. In terms of functionality, due to limitations in mechanical structure and communication methods, existing devices rely on traditional master-slave protocols such as Modbus RTU, requiring the master device to actively collect data. This results in drawbacks such as "response delay and excessive power consumption." Low-power sensors cannot receive collection commands when in sleep mode, leading to data interruption. When multiple sensors are connected, commands need to be sent frequently, which not only consumes a lot of communication resources but also causes complicated wiring and severe signal attenuation due to the dispersed mechanical structure, further reducing the reliability of data transmission.

[0003] The existing environmental monitoring devices for power distribution substations have the following shortcomings: 1. Patent document CN202321150370.4 discloses a power distribution room monitoring system. "This utility model relates to a power distribution room monitoring system, comprising: several status monitoring devices for acquiring environmental monitoring data of the power distribution room and transmitting it to a concentrator via a wired RS485 communication protocol; several control devices, including a fan controller, a lighting controller, a dehumidifier controller, and an air conditioning controller; a concentrator for receiving and calculating the health status of the power distribution room based on the environmental monitoring data, sending the environmental monitoring data and the health status of the power distribution room to a server, and controlling the operation of each control device via a wired RS485 communication protocol; the server is used to receive the environmental monitoring data and the health status of the power distribution room." However, the device in the above document has a fixed integrated structure for its sensors and acquisition board, making it impossible to replace sensors to adapt to different monitoring needs. Summary of the Invention

[0004] The purpose of this invention is to provide an environmental monitoring device for power distribution rooms based on the CLT1 protocol, so as to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a power distribution room environmental monitoring device based on the CLT1 protocol, comprising a modular mechanical body structure and a CLT1 protocol function limitation system running thereon; The modular mechanical body structure includes a unified protective shell assembly, a compatible sensing module assembly, and a power supply and communication module assembly. The unified protective shell assembly includes a detachable top cover, a main shell, and a bottom base. The top cover is a detachable rectangular plate with three types of functional opening areas: a honeycomb-shaped ventilation hole in the gas flow area, a quartz glass light-transmitting window in the infrared monitoring area, and only an indicator light opening in the basic functional area. The cover is detachably connected to the main shell by four M3 countersunk bolts, and the cover with the corresponding opening can be replaced according to the type of sensor module. The main body shell is a rectangular cavity structure, with hexagonal copper pillars for PCB mounting board and sensor module positioning slots inside. A waterproof gland interface is reserved on one side wall of the shell for wired sensor wiring. The top cover integrates a status indicator window with built-in green, blue and red LED indicator lights. The bottom base is integrally formed with the main shell and is embedded with strong magnetic blocks distributed in an isosceles triangle. At the same time, four mounting through holes are opened to support both magnetic attraction and drilling fixing methods. The entire shell is made of ABS flame-retardant material through one-piece injection molding, achieving an IP68 protection level.

[0006] Preferably, the compatible sensing module component is the core monitoring unit, which is adapted to the housing component through a standardized mechanical interface, including an integrated PCB mounting plate and a replaceable sensing unit; The PCB mounting board is a rectangular fiberglass board with mounting holes on the edge that match the hexagonal copper pillars. The board surface integrates multiple standardized interface structures, including one gas sensor slot (pin-type connection, 2.54mm pitch, compatible with 13 types of gas sensors), one infrared sensor slot (pin-type fixing, compatible with infrared probes with temperature measurement distances of 0.5m, 1m, and 2m), two wired sensor terminals (screw-type, supporting 4-20mA / RS232 signals), one switch interface (for door magnetic sensor connection), and one water immersion sensor interface. The replaceable sensing unit selects the corresponding module according to the monitoring requirements. The gas sensing unit is vertically installed on the PCB mounting plate through a slot, the infrared sensing unit is horizontally fixed to the front end of the PCB mounting plate through a buckle, and the wired sensing unit extends to the outside of the housing through a gland. The connection between each unit and the PCB mounting plate adopts a solderless mechanical adapter structure.

[0007] Preferably, the power supply and communication module component is a functional support unit integrated inside the housing component, including a battery mounting compartment and a wireless communication module; The battery installation compartment is located in an independent cavity at the rear of the main body shell. It is separated from the sensing area by a partition and contains an 11AH lithium battery. It adopts a drawer-type structure design and can be removed and replaced through the locking mechanism on the top of the shell. The wireless communication module is fixed to the rear end of the PCB mounting board. The module shell is equipped with a 433MHz antenna interface. The antenna is a flexible antenna, which is pasted inside the device and does not affect the installation space.

[0008] Preferably, the CLT1 protocol functional limitation system: the CLT1 protocol serves as the core logic for the mechanical structure to realize the monitoring function. It limits the acquisition, reporting and response behavior of the device through standardized data interaction rules. The functional correspondence between the protocol and the mechanical structure includes the adaptation logic between the protocol and the mechanical structure and the core functional process limited by the protocol. Protocol and mechanical structure adaptation logic: The protocol uses a control chip on the PCB mounting board to precisely control the operating status of mechanical components; After the sensors in the compatible sensing module component collect data, the control chip encapsulates the data according to the protocol format and triggers the transmitting circuit of the wireless communication module. The sleep command set by the protocol acts on the power supply circuit of the battery installation compartment through the control chip, so that the sensing module in the non-collection state enters a low power mode with a sleep current ≤10μA. The alarm threshold parameters in the protocol are pre-stored in the control chip. When the sensor module detects that the data exceeds the limit, the control chip immediately triggers the red alarm indicator light on the main body housing to light up and drives the wireless communication module to report the data in real time. The core functional flow defined by the protocol: Magnetic activation and protocol registration: After the device is fixedly installed on the bottom base, it is activated by magnetic attraction. The control chip on the integrated PCB mounting plate initiates the CLT1 protocol initialization and sends a basic information packet containing the device's mechanical code (a unique identifier engraved on the shell) through the wireless communication module to complete the master station registration. Periodic data acquisition and status feedback: The protocol-defined acquisition period can be adjusted through the configuration tool (1-1440min selectable). When the acquisition period is reached, the control chip wakes up the sensor module components, and each sensor acquires data according to the parameter type corresponding to the mechanical interface. At the same time, it generates a working status packet containing battery voltage and signal strength, which is reported through the wireless module. Abnormal Triggering and Immediate Response: When the gas sensing unit detects that the concentration exceeds the limit or the door magnetic sensor triggers a switch signal, the signal triggering circuit of the mechanical structure immediately sends an interrupt command to the control chip. The protocol skips the periodic waiting, directly encapsulates the monitoring data packet and reports it, and at the same time activates the alarm indicator light. Mechanical linkage for hibernation and wake-up: In the hibernation mode set by the protocol, the control chip cuts off the power supply circuit of the sensing module and only retains the wake-up circuit of the communication module. When the reporting cycle is reached or the master station wake-up command is received, the power supply is reconnected to achieve low-power operation of the mechanical components.

[0009] Preferably, a CLT1 communication data protocol It includes: a basic device information package (describing the device's unique identification code, uploaded name and model, manufacturer's production date, software and hardware version number, etc.), a working status package (describing the device's unique identification code, working temperature, battery level, running time, signal quality, etc.), and a monitoring data package (sent differently depending on the connected sensors, including sensor data, device's unique identification code, and data collection time, etc.). Agreement process: When the equipment leaves the factory, it is pre-configured with its unique identification code, name and model, production date and version number, matching sensor type and upload cycle, and alarm threshold. When the equipment is installed on site, it can be used simply by using a configuration tool to activate it. Upon initial power-on, the equipment sends a basic information packet to the master station to inform it that it will connect to the master station. It will then send information back. The master station saves the basic information, reports the unique identification code of the equipment, and automatically registers it according to the equipment type. It also responds to the equipment, which allows the equipment to confirm that the master station is correct and that communication is successful. This also allows the master station to receive the pre-registration information, realizing automated import and registration. After receiving the basic information packet response, the device sends the first working status packet to the master station to transmit the working status at the time of power-on. The master station receives, stores, and responds. This action is to collect the initial working status after power-on and provide analysis support for subsequent changes in working status. After receiving a response, the device enters a sleep state and self-wakes up according to the set data acquisition and upload intervals. During the acquisition time, the monitoring device collects sensor data. If the data does not exceed the set alarm threshold, the acquired value and acquisition time are stored, and then the device returns to sleep. If the data exceeds the alarm threshold, the device immediately and actively uploads a monitoring data packet, noting the alarm status. When the device wakes up during the upload interval, it actively uploads all the data acquired in the previous upload cycle and the current upload cycle, uploading in batches according to the number of acquisitions and the acquisition time. The device checks whether the master station has received the data and responded. If the master station has not received the data, it re-uploads the data to avoid data loss. The uploaded data packet contains the device's unique identifier, the data value, the acquisition time, and the alarm status, for the platform to receive and store in the database.

[0010] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention greatly improves device compatibility through a modularly designed unified shell and standardized sensor interface, enabling a single device to adapt to various monitoring needs. The dual fixing structure of magnetic suction and drilling significantly enhances installation flexibility. The CLT1 protocol running on it shortens the alarm response time to the second level through an active reporting mechanism, solving the latency problem of traditional master-slave protocols. The data packet retransmission mechanism ensures communication reliability, while the protocol-controlled intelligent sleep mode and power supply circuit cutoff achieve ultra-low power consumption operation, greatly extending the battery life. This deep hardware and software collaborative design significantly improves the device in terms of compatibility, real-time response, communication reliability, and battery life. 2. This invention features a top cover with three replaceable specifications: gas flow type, infrared light transmission type, and basic function type. Each cover has honeycomb ventilation holes, a quartz glass light transmission window, and an indicator light opening. Quick assembly and disassembly are achieved via countersunk bolts, allowing a single housing to perfectly adapt to the working requirements of different sensors. The integrated PCB mounting board has standardized gas sensor pin slots and infrared temperature sensor snap-in slots, supporting plug-and-play compatibility with various gas sensors and different ranging infrared probes. Furthermore, the PCB mounting board edges have mounting holes that match hexagonal copper pillars, and the board surface integrates multiple standardized interfaces, achieving comprehensive compatibility with gas, infrared, wired, switch, and water immersion sensors. This allows the device to be flexibly configured with monitoring functions without changing the main structure, significantly improving equipment applicability and reducing production and inventory costs as well as on-site maintenance difficulty. 3. This invention utilizes a dual-fixing structure of magnetic attraction and perforation on the bottom base. This dual installation scheme allows the device to flexibly adapt to various installation scenarios within a power distribution room. When the installation surface is a metal cabinet, a stable and reliable magnetic attraction is provided by a triangularly distributed array of strong magnetic blocks. When the installation surface is a non-magnetic material such as a concrete wall, a firm mechanical fixation can be achieved through four through-holes. The isosceles triangular distribution of magnetic blocks ensures mechanical balance during adsorption, preventing the device from shaking or tilting. The coexistence of through-holes and magnetic attraction completely solves the problems of traditional equipment installation methods being singular and lacking adaptability, significantly improving installation efficiency and flexibility while ensuring installation stability in various environments. 4. The main body of this invention is made of ABS flame-retardant material and has an IP68 protection rating, which can effectively resist the humid and dusty environment in the power distribution room. The internal partition physically isolates the sensing area from the battery compartment to avoid mutual interference. At the same time, the green, blue and red status indicator lights integrated on the top cover provide intuitive indication of the working status. With this design, the battery installation compartment houses an 11AH lithium battery, which adopts a drawer-type structure and is fixed by a locking mechanism. It can be directly removed and replaced from the top of the shell, realizing rapid battery maintenance. This not only ensures the long-term reliable operation of the equipment in harsh environments, but also shortens the maintenance time and frequency, significantly improving the practicality and service life of the equipment. 5. This invention, through deep optimization of the CLT1 protocol and hardware platform, limits the device's current during sleep to ≤10μA. Combined with the use of the more penetrating 433MHz frequency band for wireless communication, it significantly reduces daily operating power consumption, thereby extending the device's battery life. Furthermore, by designing the device's basic information packet, operating status packet, and monitoring data packet into a data packet architecture with distinct structures and independent functions, it achieves the division of labor in device management, status monitoring, and alarm data processing. Coupled with a hardware interrupt mechanism, it ensures that the entire response time from sensor data exceeding limits to the start of alarm data packet reporting is ≤1s. These three components work together to solve the industry problem of traditional monitoring devices being unable to balance low power consumption and rapid response. This not only ensures long-term maintenance-free operation of the equipment but also achieves second-level reporting of critical alarms, greatly improving the reliability of power distribution station safety monitoring. Attached Figure Description

[0011] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the present invention; Figure 2 This is an exploded view of the overall structure of the present invention; Figure 3 This is a schematic diagram of the overall structure of the present invention; Figure 4 This is a schematic diagram of the CLT1 protocol data structure of the present invention; Figure 5 This is a schematic diagram of the CLT1 protocol flow of the present invention.

[0012] In the diagram: 1. Top cover plate; 2. Gas sensor; 3. Infrared temperature sensor; 4. PCB mounting plate; 5. Main body housing. Detailed Implementation

[0013] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0014] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0015] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0016] See Figure 1-5 As shown.

[0017] Example 1: Gas and Temperature / Humidity Monitoring Scenario Mechanical structure assembly: Select a gas flow type top and side cover plate 1 with honeycomb-shaped vent holes, and fix it to the main body shell 5 with 4 M3 countersunk bolts; A ZE03 electrochemical gas sensor or oxygen sensor is vertically inserted into the gas sensor 2 slot of the integrated PCB mounting board 4. Connect the SHT30 temperature and humidity sensor via the wired sensor terminal block, and lead the sensor cable out to the outside through the waterproof gland on the side wall of the housing; The device is attached to the metal surface of the top of the distribution cabinet by three strong magnetic blocks on the bottom base, ensuring that the gas flow area of ​​the top cover is unobstructed. Protocol function configuration: Connect the device using a dedicated configuration tool and write the CLT1 protocol parameters to the control chip: set the acquisition cycle to 5 minutes, the data upload cycle to 30 minutes, the oxygen sensor threshold to oxygen concentration below 20%, and the humidity alarm threshold to 85%RH. The device is activated using a magnetic attraction function, and the device automatically executes the CLT1 protocol initialization process. Operation process: After the device is powered on, it first actively sends a basic information packet to the master station through the 433MHz wireless communication module. After the master station receives and replies, the registration is completed. After successful registration, the device sends its initial device operational status packet and then enters the monitoring cycle; Every 5 minutes, the sensor module is woken up to collect oxygen sensor and temperature and humidity data. If the data does not exceed the limits, it is stored and then put into sleep mode, and the green working indicator light flashes intermittently. When the oxygen sensor detects an oxygen concentration below 20%, the mechanical trigger circuit immediately sends an interrupt to the control chip. The control chip then immediately activates the red alarm indicator light and encapsulates the alarm device monitoring data packet for immediate reporting, with a response time of less than 1 second. Every 30 minutes, the device wakes up and reports all monitoring data stored in the past period, with the blue communication indicator flashing during the reporting process. If the master station does not respond, it automatically retransmits the data packet until it receives confirmation.

[0018] Example 2: Equipment Temperature Measurement and Door Magnetic Monitoring Scenario Mechanical structure assembly: Select an infrared-transmitting top and side cover 1 with a quartz glass light-transmitting window and fix it to the main body shell 5; In the infrared temperature sensor 3 slot of PCB mounting board 4, a 1-meter temperature measurement distance infrared probe is horizontally inserted and the probe direction is adjusted so that it is aligned with the busbar in the station building through the light-transmitting window. Connect the door magnetic sensor via the switch interface and install the door magnetic probe at the door seam of the power distribution room; Since the wall surface is concrete, expansion bolts are used to pass through the four mounting holes on the bottom base to firmly fix the device to the wall next to the door. Protocol function configuration: Configure CLT1 protocol parameters: acquisition cycle 10 minutes, upload cycle 1 hour, busbar temperature alarm threshold 80℃, and door magnetic alarm trigger condition set to "on state for 10 seconds"; The device activation and registration process is the same as in Example 1; Operation process: The device collects busbar temperature data every 10 minutes. When the door magnetic sensor detects that the door is open and continues to do so for 15 seconds, the alarm condition is met, the trigger circuit sends an interrupt, and the control chip immediately reports the monitoring data packet of the door magnetic alarm device. When the infrared sensor detects that the busbar temperature reaches 82℃, it will immediately trigger the temperature alarm reporting process and activate the red alarm indicator light. Every hour, the main station receives periodic data packets containing temperature change curves and door magnetic status records, enabling visualized monitoring of the equipment's operating status.

[0019] Example 3: Water immersion monitoring scenario Mechanical structure assembly: Select the basic functional top side cover plate 1 and fix it to the main body shell 5 with countersunk bolts; A water immersion probe is connected to the water immersion sensor interface on the integrated PCB mounting board 4, and the probe cable is led out to the outside through the waterproof gland on the side wall of the housing. The device is attached to the metal wall or cabinet near the cable trench of the substation by a strong magnetic block on the bottom base, and the water immersion probe is deployed at the lowest point of the cable trench. Protocol function configuration: Use the configuration tool to write CLT1 protocol parameters to the control chip: set the acquisition period to 5 minutes, the data upload period to 1 hour, and the water immersion alarm trigger condition to "normally open trigger" according to the probe type; Operation process: After the device completes power-on registration, it enters the routine monitoring cycle; The device collects the status of the water immersion probe every 5 minutes. Under normal circumstances, the device goes into sleep mode after collecting data, and the green indicator light flashes. When the water level in the ditch rises and submerges the probe, the probe status changes, triggering a hardware interrupt. The control chip immediately drives the red alarm indicator light to stay on and skips the cycle waiting. It then instantly reports the device monitoring data packet with the water immersion alarm symbol through the wireless communication module. After receiving an alarm, the main station platform can quickly issue a warning, effectively preventing short circuits in electrical equipment caused by water immersion.

[0020] The working principle, through a modularly designed unified shell and standardized sensor interfaces, greatly enhances the device's compatibility, enabling a single device to adapt to various monitoring needs. The dual fixing structure of magnetic suction and drilling significantly enhances installation flexibility. The CLT1 protocol running on it shortens the alarm response time to the second level through an active reporting mechanism, solving the latency problem of traditional master-slave protocols. The data packet retransmission mechanism ensures communication reliability, while protocol-controlled intelligent sleep and power circuit cutoff achieve ultra-low power consumption operation, significantly extending battery life. This deep hardware and software synergy design significantly improves the device's compatibility, real-time response, communication reliability, and battery life. The top cover 1 adopts a gas flow type, infrared light transmission type, and foundation... The device offers three interchangeable functional specifications, each featuring a honeycomb ventilation hole, a quartz glass light-transmitting window, and an indicator light opening. Quick assembly and disassembly are achieved via countersunk screws, allowing a single housing to perfectly adapt to the operational needs of various sensors. The integrated PCB mounting plate 4 features standardized gas sensor pin slots and infrared temperature sensor snap-in slots, supporting plug-and-play compatibility with multiple gas sensors 2 and various ranging infrared probes. Furthermore, the PCB mounting plate 4 has mounting holes on its edges that match hexagonal copper pillars, and its surface integrates multiple standardized interfaces, achieving comprehensive compatibility with gas, infrared, wired, switch, and water immersion sensors. This allows for flexible configuration of monitoring functions without replacing the main structure, significantly improving equipment applicability and reducing production inventory costs. To reduce the difficulty of on-site maintenance, the device utilizes a dual-fixation structure of magnetic attraction and perforation on the bottom base. This dual installation scheme allows the device to flexibly adapt to various installation scenarios within a power distribution room. When the mounting surface is a metal cabinet, a stable and reliable magnetic fixation is provided by a triangular distribution of strong magnetic blocks. When the mounting surface is a non-magnetic material such as a concrete wall, a firm mechanical fixation can be achieved through four mounting through holes. The isosceles triangular distribution of magnetic blocks ensures mechanical balance during adsorption, preventing the device from shaking or tilting. The coexistence of through holes and magnetic attraction completely solves the problems of the traditional equipment's single installation method and poor adaptability, significantly improving installation efficiency and flexibility, while ensuring installation stability in various environments. The main body shell 5 is made of ABS flame-retardant material. The device boasts an IP68 protection rating, effectively resisting the humid and dusty environment of a power distribution station. Internal partitions physically isolate the sensing area from the battery compartment, preventing mutual interference. Meanwhile, integrated green, blue, and red status indicator lights on the top cover provide intuitive indication of the operating status. Complementing this design, the battery compartment houses an 11AH lithium battery, employing a drawer-style structure and secured with a locking mechanism. It can be directly removed and replaced from the top of the casing, enabling rapid battery maintenance. This ensures long-term reliable operation of the equipment in harsh environments while reducing maintenance time and frequency, significantly improving the equipment's practicality and lifespan. Through deep optimization of the CLT1 protocol and hardware platform, the protocol limits the device's current during sleep mode to ≤10μA.By employing the more penetrating 433MHz frequency band for wireless communication, daily operating power consumption is significantly reduced, thereby extending the device's battery life. Simultaneously, by designing the basic information packet, operating status packet, and monitoring data packet into a structurally distinct and functionally independent data packet architecture, the processing of device management, status monitoring, and alarm data is divided. Coupled with a hardware interrupt mechanism, the entire response time from sensor data exceeding limits to the start of alarm data packet reporting is ensured to be ≤1 second. These three components work together to solve the industry challenge of traditional monitoring devices being unable to balance low power consumption and rapid response. This not only guarantees long-term maintenance-free operation of the equipment but also achieves second-level reporting of critical alarms, greatly improving the reliability of substation safety monitoring.

[0021] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A power distribution station environment monitoring device based on CLT1 protocol, characterized in that: The modular mechanical body structure and the CLT1 protocol function definition system running on the modular mechanical body structure are included. The modular mechanical body structure includes: The unified protective shell assembly includes a detachable top side cover plate (1), a main body shell (5), and a bottom base. Different types of functional opening areas are arranged on the top side cover plate (1). The main body shell (5) is internally provided with a PCB mounting plate (4), hexagonal copper columns, and a sensing module positioning slot, and is provided with a waterproof gland port and a state indication window. The bottom base is integrated with a strong magnetic block and mounting through holes. The compatible sensing module assembly includes an integrated PCB mounting plate (4) and a replaceable sensing unit. The PCB mounting plate (4) is integrated with a gas sensor slot, an infrared temperature sensor slot, a wired sensor terminal, an on-off interface, and a water immersion sensor interface. The replaceable sensing unit is adapted to the PCB mounting plate (4) through plug-in. The power supply and communication module assembly includes a battery mounting bin and a wireless communication module arranged in the main body shell (5).

2. The CLT1 protocol based electrical substation environment monitoring device according to claim 1, characterized in that: The CLT1 protocol function definition system is realized by a control chip running on the PCB mounting plate (4), and the device works according to the following logic: a. After the device is powered on and activated, the device actively reports a device basic information package containing device identity information to the master station through the wireless communication module to complete the master station registration; b. After successful registration, the device periodically collects and reports data, including periodically actively reporting a device working state package and periodically or triggered by sensing data exceeding the limit actively reporting a device monitoring data package; c. When the master station does not respond to the reported data package, the device executes a data package retransmission mechanism; d. In the non-collection and reporting period, the control chip cuts off the power supply circuit of the sensing module assembly, so that the device enters a low-power sleep state.

3. The CLT1 protocol based power substation environment monitoring device according to claim 1, characterized in that: The top side cover plate (1) includes three specifications of a gas flow type, an infrared light transmission type, and a basic function type, and is respectively provided with a honeycomb-shaped air hole, a quartz glass light transmission window, and an indicator light opening, and is detachably connected to the main body shell (5) through a countersunk bolt.

4. The CLT1 protocol based electrical substation environment monitoring device according to claim 1, characterized in that: The gas sensor slot on the integrated PCB mounting plate (4) is a pin type structure with a spacing of 2.54 mm, which is suitable for various gas sensors (2). The infrared temperature sensor slot is a pin type structure suitable for infrared probes with different temperature measurement distances.

5. The CLT1 protocol based power substation environment monitoring device according to claim 1, characterized in that: The strong magnetic blocks arranged on the bottom base are in isosceles triangle distribution, and four mounting through holes are arranged, supporting magnetic attraction and punching two fixing modes.

6. The CLT1 protocol based electrical substation environment monitoring device according to claim 2, wherein: The current of the CLT1 protocol definition device when sleeping is less than or equal to 10 μA, and the response time from sensing data exceeding the limit to starting to report the alarm data package is less than or equal to 1 s.

7. The CLT1 protocol based power substation environment monitoring device according to claim 1, characterized in that: The main body shell (5) is made of ABS flame-retardant material, has a protection level of IP68, is internally provided with a partition plate to separate the sensing area and the battery bin, and is integrated with green, blue, and red state indication lights at the top cover.

8. The CLT1 protocol based power distribution substation environment monitoring device as claimed in claim 2, wherein: The device basic information package, device working state package and device monitoring data package are data packages with different structures and independent functions, the wireless communication module uses 433MHz frequency band for communication, and is provided with a flexible antenna which is attached to the inside of the device.

9. The CLT1 protocol based power distribution substation environment monitoring device as claimed in claim 1, wherein: The battery mounting bin is of a drawer type structure, internally provided with an 11AH lithium battery, and is fixed through a lock catch mechanism, and can be taken out from the top surface of the shell for replacement.

10. The CLT1 protocol based power distribution substation environment monitoring device as claimed in claim 1, wherein: The integrated PCB mounting plate (4) is provided with mounting holes matched with hexagonal copper columns at the edges, and multiple groups of standardized interface structures are integrated on the plate surface, supporting the access of gas sensors (2), infrared temperature sensors (3), wired sensors, on-off sensors and water immersion sensors.

Images