Hand-held multi-functional warning light and control method thereof

Abstract

The present application relates to the technical field of warning light, and discloses a portable multifunctional warning light and a control method thereof.The warning light comprises a lamp body assembly, a bottom cover, a lamp shell, a sound alarm assembly, a light alarm assembly, a sensing assembly, a power supply and a control circuit board; the bottom cover and the lamp shell form a containing cavity, the sensing assembly and the sound alarm assembly are respectively installed on the fifth installation part and the sound cavity of the bottom cover, the light alarm assembly is installed on the third installation part of the lamp shell, the power supply and the control circuit board are respectively arranged on the two sides of the support, and each assembly is electrically connected with the control circuit board.The control method determines the gas detection state according to the concentration of various target gases, and implements sound and light alarm and power consumption coordination in the alarm state, and preferentially guarantees the work of the gas detection and alarm assembly.The present application improves the functional integration, structural reliability and alarm operation reliability under power supply limited conditions.

Description

Technical Field

[0001] This invention relates to the field of warning light technology, and in particular to a portable multi-functional warning light and its control method. Background Technology

[0002] A handheld lamp is a portable lighting tool that typically includes a lamp head, lamp housing, handle, and power supply. It can provide mobile lighting for workers in environments without a fixed light source or with low illumination, and is therefore widely used in scenarios such as mine maintenance, confined space operations, petrochemical pipeline maintenance, and emergency rescue.

[0003] In the aforementioned work scenarios, in addition to lighting requirements, the work environment may also present safety risks such as leaks of toxic, harmful, or flammable gases. Therefore, workers typically need to carry gas detection and alarm devices to monitor target gases in the environment and issue alarms when gas concentrations are abnormal. However, carrying both a portable lamp and a gas detection and alarm device separately not only increases the burden on workers but also makes it difficult to simultaneously perform lighting, environmental monitoring, and alarm alerts during mobile operations.

[0004] To improve the functional integration of equipment, existing technologies have developed solutions that integrate gas detection devices into portable lamps. For example, Chinese invention patent application CN110005970A discloses a portable lamp with a hazardous gas detection and alarm function. By combining a hazardous gas detection and alarm device with the portable lamp, the lamp can simultaneously provide lighting and hazardous gas detection and alarm functions.

[0005] However, existing multi-functional portable lamps typically focus on simply integrating lighting, gas detection, and alarm components onto a single lamp. These components remain relatively independent, lacking a unified installation and electrical connection structure for each. On one hand, the placement of the sensing, audible, and visual alarm components on the lamp is often inadequate, potentially affecting the contact between the sensing components and the external environment, the output of audible alarm signals, and the visibility of visual alarm signals. On the other hand, the power supply, control circuit board, and other functional components lack a stable and compact support and partitioned layout within the lamp housing. This can easily lead to problems such as component swaying, mutual compression, or messy wiring when the portable lamp is frequently carried, moved, or subjected to vibration.

[0006] Furthermore, due to the lack of a unified electrical connection foundation between the various functional components, it is difficult to centrally control functions such as lighting, ambient sensing, audible alarms, and visual alarms through a single control circuit board, which is detrimental to the coordinated operation of the various functional components. Therefore, existing portable lamps still suffer from insufficient functional integration, unreasonable internal structural layout, and a lack of a unified control foundation for the various functional components. Summary of the Invention

[0007] In view of this, embodiments of the present invention provide a portable multi-functional warning light and its control method to solve the technical problems of insufficient integration of lighting, environmental sensing and sound and light alarm functions in existing portable lights, unreasonable installation and internal layout of various functional components, and lack of unified electrical connection and centralized control basis for various functional components.

[0008] In a first aspect, embodiments of the present invention provide a portable multi-functional warning light, comprising: a lamp body assembly, a bottom cover, a lamp housing, a sound alarm assembly, a light alarm assembly, a sensing assembly, a power supply, and a control circuit board; the bottom cover is connected to the lamp housing to form a sealed receiving cavity, the bottom cover is provided with a fifth mounting part and a sound cavity, the sound alarm assembly is connected to the sound cavity, and the sensing assembly is connected to the fifth mounting part; a third mounting part is provided on the lamp housing, and the light alarm assembly is connected to the third mounting part; a bracket is provided inside the receiving cavity, the bracket is connected to the lamp housing, and the power supply is fixed to the side of the bracket near the top of the receiving cavity; the control circuit board is located on the side of the bracket away from the power supply, and the lamp body assembly, the sound alarm assembly, the light alarm assembly, the sensing assembly, and the power supply are all electrically connected to the control circuit board.

[0009] Secondly, embodiments of the present invention provide a control method applied to the aforementioned portable multi-functional warning light, wherein the light alarm component includes a warning light source and a display module, and the method includes: Based on the user's input function control commands, control the sensing components and lamp components to enter the corresponding working states; When the sensing component is in working condition, it collects gas concentration data of various target gases in the environment. The gas concentration data of each target gas are compared with the corresponding preset safety threshold to determine the current gas detection status; When the current gas detection state is a gas alarm state, an audible alarm control signal and a visual alarm control signal are generated; The sound alarm control signal and the light alarm control signal are used to control the sound alarm component and the light alarm component respectively, and the gas concentration data and gas alarm status are output through the display module. The power supply status is obtained, and under the premise of ensuring the normal operation of the gas detection function and the alarm function, the power consumption of the sensing component, the sound alarm component, the lamp component, and the warning light source and display module in the light alarm component are controlled.

[0010] In summary, the beneficial effects of the present invention are as follows: Compared with the prior art, the present invention provides a portable multi-functional warning light. By integrating the lamp body assembly, sound alarm assembly, light alarm assembly, sensing assembly, power supply and control circuit board into an integral structure formed by the bottom cover and lamp housing, and electrically connecting each functional component to the control circuit board, the portable multi-functional warning light can provide lighting function while having environmental sensing, sound alarm and light alarm functions. This reduces the inconvenience caused by operators carrying lighting equipment and environmental detection alarm equipment separately, and provides a hardware foundation for unified control and linkage between the functional components. Specifically, by setting a fifth mounting part and a sound cavity on the bottom cover, the sensing component and the sound alarm component each have relatively independent mounting positions. This facilitates the sensing component's contact with the external environment and collection of environmental information, while also enabling the sound alarm component to output alarm sounds through the sound cavity. By setting a deflector airflow channel with staggered inlet and outlet between the vent on the outside of the bottom cover and the sensor detection surface, and by setting a waterproof and breathable membrane on the side of the deflector airflow channel near the sensor, while using independent elastic sealing rings corresponding to each sensor to limit the air intake path, external water droplets and dust are not easily able to directly impact the sensor, while ambient gas can still quickly diffuse to the detection surface of the corresponding sensor, thus balancing the air intake efficiency of the sensor and the protection level of the entire lamp. By setting a third mounting part on the lamp housing and installing a light alarm component, the light alarm signal can be emitted outward from the lamp housing, so that the sound alarm component and the light alarm component can provide warnings to the user from the auditory and visual directions, respectively. Meanwhile, by installing a bracket within the lamp housing's accommodating cavity and using the bracket to fix the power supply at the top of the cavity away from the bottom cover, the power supply can be stably supported, reducing the possibility of it shaking or shifting during carrying and movement of the portable multi-functional warning light. Placing the control circuit board on the side of the bracket away from the power supply allows for separation and positioning of the power supply and control circuit board, making the arrangement of components within the accommodating cavity more compact and orderly, and reducing the risk of mutual squeezing or collision between the power supply and control circuit board. In short, this invention, through the integrated arrangement, partitioned installation, and unified electrical connection of various functional components, achieves an organic combination of lighting, environmental sensing, and audible and visual alarm functions while maintaining the portability of the portable light. This improves the functional integration and structural reliability of the warning light and provides a structural and electrical connection basis for timely control of the audible and visual alarm components based on information collected by the sensing components.

[0011] Compared with existing technologies, this invention provides a control method that coordinates the sensing components and lamp components to enter corresponding working states based on user-input function control commands, enabling the gas detection and lighting functions to be activated in conjunction according to actual usage needs. By collecting gas concentration data of multiple target gases and comparing each gas concentration data with corresponding preset safety thresholds, the current gas detection status can be accurately determined for the safety requirements of different target gases, reducing the possibility of missed or false alarms due to reliance on manual judgment. When a gas alarm state is detected, audible and visual alarm control signals are automatically generated to control the audible and visual alarm components to work together, and simultaneously output gas concentration data and gas alarm status, allowing operators to promptly perceive danger and understand specific detection results. Simultaneously, based on the power supply status, power consumption control is implemented for each electrical component while prioritizing the normal operation of the gas detection and alarm functions, reducing unnecessary power consumption and lowering the risk of gas detection or alarm function failure due to insufficient power. Thus, lighting, gas detection, audible and visual alarms, status display, and power management are coordinated under control, improving the timeliness, accuracy, and operational reliability of the portable multi-functional warning light's gas alarm response in complex environments. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments of the present invention will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, and these are all within the protection scope of the present invention.

[0013] Figure 1 This is a three-dimensional structural schematic diagram of a portable multi-functional warning light according to an embodiment of the present invention; Figure 2 This is a three-dimensional structural diagram of a portable multi-functional warning light in another embodiment of the present invention; Figure 3 This is an exploded schematic diagram of a portable multi-functional warning light according to an embodiment of the present invention; Figure 4 This is an exploded schematic diagram of a portable multi-functional warning light according to another embodiment of the present invention; Figure 5 This is an exploded schematic diagram of a portable multi-functional warning light according to another embodiment of the present invention; Figure 6 This is an exploded view of the lamp body assembly in one embodiment of the present invention; Figure 7 This is an exploded view of the lamp body assembly in another embodiment of the present invention; Figure 8 This is a three-dimensional structural schematic diagram of a heat sink component in one embodiment of the present invention; Figure 9 This is a three-dimensional structural schematic diagram of the heat sink in another embodiment of the present invention; Figure 10 This is a three-dimensional structural diagram of the lamp housing in one embodiment of the present invention; Figure 11 This is a three-dimensional structural diagram of the lamp housing in another embodiment of the present invention; Figure 12 This is an exploded schematic diagram of a portable multi-functional warning light according to another embodiment of the present invention; Figure 13 This is a three-dimensional structural diagram of the button assembly in one embodiment of the present invention; Figure 14 This is a flowchart illustrating the control method in one embodiment of the present invention.

[0014] The components and their numbers shown in the picture: 1. Handheld multi-functional warning light; 10. Lamp body assembly; 100. Heat sink; 1000. Lamp head adjustment part; 1001. Lamp head wiring channel; 1002. Lamp head adjustment hole; 1003. First mounting part; 101. Reflector; 102. Buffer; 103. Lens; 104. Lamp cover; 105. Lamp panel; 11. Bottom cover; 110. Magnetic part; 111. Anti-slip part; 112. Sound cavity; 113. Fifth mounting part; 1130. Vent hole; 12. Lamp housing; 1 20. Heat dissipation unit; 121. Second mounting unit; 122. Lamp housing wiring channel; 123. Handle; 1230. Button fixing hole; 124. Protective cover; 125. Third mounting unit; 126. Fourth mounting unit; 127. Lamp head adjustment assembly; 13. Light alarm assembly; 14. Button assembly; 15. Charging interface; 16. Power supply; 17. Bracket; 18. Sound alarm assembly; 19. Sensing assembly; 20. Housing seal; 21. Connector; 22. Control circuit board. Detailed Implementation

[0015] The features and exemplary embodiments of various aspects of the present invention will now be described in detail. To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present invention and are not configured to limit the present invention. For those skilled in the art, the present invention can be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the invention.

[0016] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0017] Please see Figures 1 to 13 In a first aspect, embodiments of the present invention provide a portable multi-functional warning light 1, including a lamp body assembly 10, a bottom cover 11, a lamp housing 12, a sound alarm assembly 18, a light alarm assembly 13, a sensing assembly 19, a power supply 16, and a control circuit board 22. The bottom cover 11 is connected to the lamp housing 12 to form a sealed receiving cavity; the bottom cover 11 is provided with a fifth mounting part 113 and a sound cavity 112, the sound alarm assembly 18 is connected to the sound cavity 112, and the sensing assembly 19 is connected to the fifth mounting part 113; a third mounting part 125 is provided on the lamp housing 12, and the light alarm assembly 13 is connected to the third mounting part 125; a bracket 17 is provided inside the receiving cavity, and the bracket 17 is connected to the lamp housing 12 to fix the power supply 16 on the top of the receiving cavity away from the bottom cover 11; the control circuit board 22 is provided on the side of the bracket 17 away from the power supply 16, and the lamp body assembly 10, the sound alarm assembly 18, the light alarm assembly 13, the sensing assembly 19, and the power supply 16 are all electrically connected to the control circuit board 22.

[0018] In this embodiment, the lamp body assembly 10 is used to provide illumination. The bottom cover 11 is connected to the lamp housing 12 to form a sealed receiving cavity to protect the circuits and components disposed within the receiving cavity. The fifth mounting part 113 on the bottom cover 11 is used to mount the sensing component 19. The vent hole 1130 on the outside of the bottom cover 11 is connected to the detection surface of the sensing component 19 through a baffle air guide channel and a waterproof and breathable membrane, and the corresponding air intake path is defined by the independent elastic sealing rings corresponding to each sensor, so that the external ambient gas can reach the detection area of ​​the sensing component 19, while reducing the possibility of external water droplets and dust directly impacting the sensor and airflow crosstalk between different sensors. The sound cavity 112 on the bottom cover 11 is correspondingly arranged with the sound alarm component 18, so that the sound waves generated by the sound alarm component 18 can propagate to the outside of the lamp housing 12 through the sound cavity 112, improving the propagation efficiency of the sound alarm. The third mounting part 125 on the lamp housing 12 is used to fix the light alarm component 13, so that the position of the light alarm component 13 remains stable and can output a visual warning signal to the outside. The power supply 16 is fixed to the top of the receiving cavity away from the bottom cover 11 by the bracket 17, which can reduce the shaking or displacement of the power supply 16 during carrying or moving of the portable multi-functional warning light 1. The control circuit board 22 is installed on the side of the bracket 17 away from the power supply 16 and is electrically connected to each functional component to realize centralized control of lighting, environmental sensing and audible and visual alarm functions, thereby improving the functional integration and structural reliability of the entire light.

[0019] like Figure 3 As shown, the fifth mounting section 113 includes multiple mounting slots formed by protrusions, and multiple sensors in the sensing assembly 19 are respectively disposed in the corresponding mounting slots. Figure 10 and Figure 11 As shown, the third mounting part 125 includes a U-shaped slot on the inner wall of the lamp housing 12. The bottom of the U-shaped slot has an opening communicating with the outside of the lamp housing 12. The light alarm component 13 is disposed within the U-shaped slot and is fixed by the U-shaped slot. The opening includes a rectangular opening at the bottom and a circular opening above the rectangular opening. The rectangular opening is used to install the display module of the light alarm component 13, and the circular opening is used to set the alarm operation button. The light alarm component 13 may also include a warning light source, which outputs a constantly lit or flashing warning light. When the portable multi-functional warning light 1 is in an environment where automatic alarm is not required, or when the automatic alarm function malfunctions, the user can manually control the sound alarm component 18 and the light alarm component 13 through the alarm operation button and view the corresponding working status through the display module, thereby further improving safety.

[0020] Please see Figures 1 to 13In one embodiment, the lamp assembly 10 includes a heat sink 100, a lamp plate 105, a reflector 101, a buffer 102, a lens 103, and a lamp cover 104. The lamp plate 105 is disposed on the heat sink 100, and the reflector 101 is detachably connected to the heat sink 100 to position the lamp plate 105 between the heat sink 100 and the reflector 101. One end of the reflector 101 away from the lamp plate 105 is connected to the lens 103 through the buffer 102, and the side of the lens 103 away from the reflector 101 abuts against the lamp cover 104. The lamp cover 104 is fixedly connected to the heat sink 100 to position the lamp plate 105, the reflector 101, the buffer 102, and the lens 103 between the heat sink 100 and the lamp cover 104. The heat sink 100 includes a lamp head adjustment part 1000, and the lamp housing 12 includes a lamp housing wiring groove 122. The heat sink 100 is movably connected to the lamp housing wiring groove 122 through the lamp head adjustment part 1000. The lamp housing 12 also includes a second mounting part 121, and one end of the heat sink 100 away from the reflector cup 101 is disposed in the second mounting part 121.

[0021] In this embodiment, the lamp panel 105 is used to mount the lighting source, the reflector 101 is used to converge and reflect the light emitted by the lighting source, and the lens 103 is used to transmit and further distribute the light after it has been processed by the reflector 101. A buffer 102 is disposed between the reflector 101 and the lens 103 to absorb minor impacts or vibrations to the lamp assembly 10, reducing the risk of collision or damage between the lens 103 and the reflector 101. Specifically, the buffer 102 can be a vibration-damping pad made of silicone material. Figure 6 As shown, the buffer 102 can be an annular buffer ring adapted to the shape of the reflector cup 101. The lens 103 is pressed and limited by the lamp cover 104, which is fixedly connected to the heat sink 100, thus forming a stable optical mounting structure. The heat sink 100 is movably connected to the lamp housing wiring groove 122 through the lamp head adjustment part 1000, allowing the lamp body assembly 10 to rotate relative to the lamp housing 12, making it convenient for the user to adjust the lighting direction according to the work position.

[0022] In the above embodiments, such as Figures 4 to 9As shown, the heat sink 100 is generally cylindrical, with one end recessed to form an installation space for mounting the lamp plate 105, reflector 101, and lens 103. The outer periphery of the installation space has external threads for engaging with the lamp cover 104. A first mounting portion 1003 is located at the bottom of the installation space. This first mounting portion 1003 is an annular structure protruding towards the reflector 101, forming an installation area corresponding to the reflector 101. The inner wall of the first mounting portion 1003 has internal threads. The lamp plate 105 is positioned on the side of the first mounting portion 1003 near the bottom of the installation space and is fixedly connected to the heat sink 100 with bolts. One end of the reflector 101 has external threads adapted to the internal threads, and the reflector 101 is detachably connected to the first mounting portion 1003 via these threads, thereby limiting the lamp plate 105 between the heat sink 100 and the reflector 101. The reflector cup 101 is circumferentially positioned by the annular first mounting part 1003 and the reflector cup 101 is installed by the threaded connection, which can improve the coaxiality and installation stability between the reflector cup 101 and the lamp board 105, and at the same time facilitate the disassembly and replacement of the reflector cup 101.

[0023] The other end of the heat sink 100 is provided with a lamp head adjustment part 1000. The side profile of the lamp head adjustment part 1000 is fan-shaped, and a plurality of lamp head adjustment holes 1002 are provided on the arc portion near the outer side of the lamp head adjustment part 1000. A through hole is provided at the bottom of the lamp head wiring groove 1001, which passes through the heat sink 100 and is used for the cable of the lamp board 105 to pass through.

[0024] like Figure 4 , Figure 5 and Figure 10 As shown, the lamp housing 12 is provided with a second mounting portion 121 corresponding to the heat sink 100 and a lamp housing wiring groove 122. The second mounting portion 121 is a groove adapted to the end of the heat sink 100 away from the reflector cup 101, providing clearance for the rotation of the heat sink 100. Fixing holes are provided on the side of the lamp housing wiring groove 122 and the side of the lamp head adjustment portion 1000. A long bolt passes through the fixing holes on the lamp housing wiring groove 122 and the lamp head adjustment portion 1000 in sequence to rotatably connect the heat sink 100 to the lamp housing 12, allowing the heat sink 100 to rotate around the long bolt. The side wall of the lamp housing wiring groove 122 is also provided with mounting holes for mounting the lamp head adjustment assembly 127. Figure 4As shown, the lamp head adjustment assembly 127 includes a fastening bolt, a spring, and a lever. One end of the spring is connected to the lever, and the other end is connected to the fastening bolt. The lever can engage with different lamp head adjustment holes 1002. When the lamp body assembly 10 rotates to the target angle, the lever, under the action of the spring, enters the corresponding lamp head adjustment hole 1002, thereby positioning the lamp body assembly 10 in different positions. Through the cooperation of the lamp head adjustment assembly 127, the lamp head wiring groove 1001, the lamp housing wiring groove 122, and the lamp head adjustment part 1000, the angle adjustment and position holding of the lamp body assembly 10 relative to the lamp housing 12 can be achieved.

[0025] It should be noted that the lamp housing wiring groove 122 is also provided with through holes for wiring of the lamp board 105. The cables of the lamp board 105 pass through the through holes on the heat sink 100, the lamp head wiring groove 1001 and the lamp housing wiring groove 122 in sequence into the receiving cavity of the lamp housing 12, and are electrically connected to the control circuit board 22, thereby forming a hidden internal wiring structure to reduce wear or damage caused by exposed cables.

[0026] In the above embodiment, a heat dissipation part 120 is also provided at the bottom of the second mounting part 121 away from the lamp housing wiring groove 122. The heat dissipation part 120 has a groove structure, and multiple heat dissipation ribs are provided in the groove. The multiple heat dissipation ribs can increase the contact area between the lamp housing 12 and the external air, so that the heat generated by the lamp body assembly 10 can be dissipated to the outside more quickly, thereby improving the heat dissipation performance of the lamp body assembly 10.

[0027] Please see Figures 1 to 13 In one embodiment, the fifth mounting part 113 includes multiple mounting slots corresponding to multiple sensors in the sensing assembly 19. Each mounting slot has a circumferentially formed adhesive groove at its bottom, and each sensor is fixed to the corresponding mounting slot by adhesive disposed in the corresponding adhesive groove. The outer side of the bottom cover 11 is provided with multiple vent holes 1130 corresponding to the multiple mounting slots. Each vent hole 1130 is used to introduce ambient gas from outside the portable multi-functional warning light 1 into the detection area where the corresponding sensor is located.

[0028] In this embodiment, at least one baffled air guide channel is provided between each vent 1130 and the detection surface of the corresponding sensor. The inlet of the baffled air guide channel is connected to the corresponding vent 1130, and the outlet of the baffled air guide channel faces the detection surface of the corresponding sensor. The inlet and outlet of the baffled air guide channel are staggered in the thickness direction and / or radial direction of the bottom cover 11, so that a straight air path extending in the same straight line is not formed between the vent 1130 and the detection surface of the sensor. The baffled air guide channel can be formed by a baffle wall, guide rib or partition provided on the inner side of the bottom cover 11, and can form an L-shaped, Z-shaped or arc-shaped air guide path, so that the ambient gas entering through the vent 1130 changes its flow direction at least once before reaching the detection surface of the sensor.

[0029] In the above embodiment, a waterproof and breathable membrane is provided on the side of the baffled air guide channel near the corresponding sensor. Specifically, the bottom cover 11 has an annular sealing step around the outlet of the baffled air guide channel. The waterproof and breathable membrane covers the outlet of the baffled air guide channel and is pressed against the annular sealing step by a pressure ring or pressure frame. The pressure ring or pressure frame can be fixed to the bottom cover 11 by snap-fit, screw connection, thermal riveting, or welding, so that the periphery of the waterproof and breathable membrane is sealed and fitted with the annular sealing step, thereby allowing ambient gas to pass through the waterproof and breathable membrane and blocking external liquid water, dust, and particulate pollutants from entering the area where the sensor is located.

[0030] In the above embodiments, each sensor is provided with an independent elastic sealing ring. The elastic sealing ring surrounds the detection surface of the corresponding sensor and seals against at least one of the sensor and the bottom cover 11, the pressure ring, or the pressure frame to form an independent detection air chamber adapted to the corresponding sensor. Multiple independent detection air chambers are isolated from each other, ensuring that ambient gas entering the detection surface of any sensor can only reach the sensor's detection surface sequentially through the corresponding vent 1130, the baffle channel, and the waterproof and breathable membrane. This prevents ambient gas from bypassing the predetermined air intake path and entering the sensor, and reduces airflow crosstalk between different sensors.

[0031] In the above embodiments, the direction perpendicular to the bottom cover 11 is defined as the first direction, and the plane perpendicular to the first direction is defined as the first projection plane. The first direction is used to characterize the direction extending from the outside of the bottom cover 11 toward the inside of the receiving cavity, and the first projection plane is used to define the relative arrangement of the vent 1130, the baffle air guide channel, the sensing component 19, and the sound cavity 112 on the bottom cover 11.

[0032] Each baffled air-guiding channel includes an inlet connected to the corresponding vent 1130 and an outlet facing the detection surface of the corresponding sensor. A waterproof and breathable membrane is provided at the outlet of each baffled air-guiding channel. On the first projection plane, the orthographic projection of the inlet of each baffled air-guiding channel does not completely coincide with the orthographic projection of the corresponding outlet, creating a non-straight-through air-guiding path between the inlet and outlet. The orthographic projection of the corresponding vent 1130 at least partially overlaps with the orthographic projection of the inlet, allowing ambient gas entering through the vent 1130 to enter the corresponding baffled air-guiding channel. The orthographic projections of the corresponding outlet, the waterproof and breathable membrane, and the detection surface of the sensor at least partially overlap, allowing ambient gas guided by the baffled air-guiding channel to pass through the waterproof and breathable membrane and reach the detection surface of the corresponding sensor.

[0033] Furthermore, on the first projection plane, the orthographic projection of the fifth mounting portion 113 and the orthographic projection of the sound cavity 112 are spaced apart from each other. The orthographic projection of the sensing component 19 is at least partially located within the orthographic projection range of the fifth mounting portion 113, and the orthographic projection of the sound alarm component 18 is at least partially located within the orthographic projection range of the sound cavity 112. Thus, the sensing component 19 and the sound alarm component 18 form mutually separated mounting areas on the bottom cover 11, which can reduce the influence of sound pressure changes, vibrations, and airflow generated when the sound alarm component 18 is working on the sensor detection surface, while ensuring that the baffled air guide channel and the sound cavity 112 maintain their respective gas transmission paths and sound transmission paths.

[0034] In the above embodiment, due to the staggered arrangement of the inlet and outlet of the baffled air guide channel, external water droplets, dust, or other particles entering through the vent 1130 need to change their flow direction along the baffled air guide channel, thus making it less likely to directly impact the waterproof and breathable membrane and the sensor's detection surface. The waterproof and breathable membrane further prevents liquid water and dust from entering the independent detection air chamber. At the same time, the flow cross-section and channel length of the baffled air guide channel can be set according to the sensor's response requirements, allowing external ambient gas to still diffuse quickly along the baffled air guide channel and through the waterproof and breathable membrane to the corresponding sensor's detection surface. Therefore, the above structure can improve the waterproof and dustproof capabilities of the sensing component 19 while maintaining gas collection efficiency and detection response speed, thereby resolving the contradiction between sensor air intake efficiency and overall lamp protection level.

[0035] For example, the sensing component 19 includes at least an electrochemical sensor for detecting carbon monoxide, an infrared sensor for detecting carbon dioxide and methane, and an oxygen sensor for detecting oxygen concentration. Multiple sensors can be integrated onto the same sensing circuit board, which is electrically connected to the control circuit board 22. The control circuit board 22 can calibrate, compensate, and fuse the detection data according to the output characteristics of each sensor to reduce the impact of temperature changes, sensor drift, and cross-interference between different sensors on the detection results.

[0036] Please see Figures 1 to 13 In one embodiment, the portable multi-functional warning light 1 further includes a housing seal 20, and the lamp housing 12 and the bottom cover 11 are sealed together by the housing seal 20.

[0037] In this embodiment, since both the audible alarm component 18 and the sensing component 19 are mounted on the bottom cover 11, and the housing seal 20 is positioned between the lamp housing 12 and the bottom cover 11, it prevents external moisture, dust, and oil from entering the cavity, protecting electronic components such as the sensing component 19, the control circuit board 22, and the audible alarm component 18. The housing seal 20 can be a silicone sealing ring, a silicone sealing gasket, or a sealing layer. While providing sealing protection, it also has a certain degree of elasticity, allowing the bottom cover 11 to fit tightly against the lamp housing 12 and reducing the possibility of loosening between the bottom cover 11 and the lamp housing 12 when the portable multi-functional warning light 1 is subjected to vibration or impact.

[0038] Please see Figures 1 to 13 In one embodiment, the lamp housing 12 further includes a fourth mounting portion 126, which is located on the inner sidewall of the lamp housing 12 near the heat dissipation portion 120. The portable multi-functional warning light 1 also includes a connector 21, which is disposed on the fourth mounting portion 126 and connects the power supply 16 to the control circuit board 22. This connector 21 enables a detachable electrical connection between the power supply 16 and the control circuit board 22, facilitating the assembly and replacement of the power supply 16. The power supply 16 can be a rechargeable lithium battery.

[0039] Please see Figures 1 to 13 In one embodiment, the bracket 17 is box-shaped, with fixing holes at its four corners. The top of the receiving cavity of the lamp housing 12 has connecting holes corresponding to the fixing holes on the bracket 17. Long bolts pass through the fixing holes on the bracket 17 and connect to the connecting holes on the lamp housing 12 to fix the bracket 17 inside the lamp housing 12. The power supply 16 is housed and fixed on the side of the bracket 17 near the top of the receiving cavity, and the control circuit board 22 is located on the side of the bracket 17 away from the power supply 16. The bracket 17 can both position the power supply 16 and the control circuit board 22 and separate them, reducing mutual compression or collision.

[0040] Please see Figures 1 to 13 In one embodiment, the bottom cover 11 further includes a magnetic component 110 and an anti-slip component 111. The magnetic component 110 is fixedly connected to the anti-slip component 111. The bottom cover 11 has a mounting groove adapted to the anti-slip component 111. The magnetic component 110 is attracted to a magnetic mating structure disposed in or around the mounting groove to detachably fix the anti-slip component 111 to the bottom cover 11. The anti-slip component 111 can increase the friction between the bottom cover 11 and the supporting surface, allowing the portable multi-functional warning light 1 to be placed stably. The magnetic component 110 can also allow the portable multi-functional warning light 1 to be attracted to a working surface that can be magnetically attracted, to adapt to different usage scenarios.

[0041] Please see Figures 1 to 13In one embodiment, the lamp housing 12 further includes a handle 123, with a button fixing hole 1230 at one end near the lamp body assembly 10. The portable multi-functional warning light 1 also includes a button assembly 14, which is disposed within the button fixing hole 1230. A wiring channel extending downward from the button fixing hole 1230 is provided inside the handle 123, through which the cable of the button assembly 14 is electrically connected to the control circuit board 22. Protective covers 124 are also provided on both sides of the handle 123, and the protective covers 124 are fixed to the handle 123 with bolts to cover and protect the internal connection structure of the handle 123. A charging interface 15 is also installed on the lamp housing 12. The charging interface 15 can be a Type-C interface and is electrically connected to the power supply 16 or the control circuit board 22 for charging the power supply 16.

[0042] Secondly, embodiments of the present invention also provide a control method applied to the portable multi-functional warning light 1 described in any of the above embodiments, wherein the light alarm component 13 includes a warning light source and a display module, and the control method includes the following steps: Based on the function control commands input by the user, the sensing component 19 and the lamp body component 10 are controlled to enter the corresponding working state.

[0043] In this embodiment, the function control command is used to indicate the function to be activated and its operating parameters for the portable multi-functional warning light 1. It may include at least one of the following: lighting on command, lighting off command, lighting level adjustment command, gas detection on command, gas detection off command, and simultaneous lighting and gas detection on command. The control circuit board 22 can receive the function control command via the button assembly 14 or the alarm operation button, or it can receive the function control command by communicating with an external control terminal.

[0044] Specifically, when the function control command is a lighting on command, the control circuit board 22 outputs a corresponding lighting control signal to the lamp assembly 10, causing the lamp assembly 10 to operate according to the lighting level selected by the user. When the function control command is a gas detection on command, the control circuit board 22 supplies power to the sensing component 19 and controls each sensor in the sensing component 19 to complete initialization, preheating, or zero-point calibration before entering the gas detection state. When the function control command simultaneously indicates both the lighting function and the gas detection function, the control circuit board 22 controls the lamp assembly 10 and the sensing component 19 to enter their respective operating states. Thus, the lighting function and the gas detection function can be centrally controlled through a unified function control command, reducing the inconvenience caused by users operating multiple devices or multiple independent functional modules separately.

[0045] When the sensing component 19 is in working condition, it collects gas concentration data of various target gases in the environment.

[0046] In this embodiment, the target gas is a gas that needs to be safely monitored in the current working environment, and may include at least two of carbon monoxide, carbon dioxide, methane, and oxygen. The sensing component 19 includes multiple sensors corresponding to each target gas, each sensor communicating with the external environment through an independent air intake path. The external ambient gas enters through the corresponding vent 1130 on the outside of the bottom cover 11, flows along a staggered baffle channel with staggered inlets and outlets, and passes through a waterproof and breathable membrane located near the sensor in the baffle channel to reach the detection surface of the corresponding sensor. An independent elastic sealing ring around each sensor seals and isolates the corresponding air intake path, ensuring that the gas can only reach the corresponding sensor along a predetermined air intake path and reducing airflow crosstalk between different sensors. Each sensor converts the detected gas concentration into an electrical signal and transmits the signal to the control circuit board 22. The control circuit board 22 calculates the gas concentration data of each target gas based on the calibration parameters of the corresponding sensor.

[0047] For example, an electrochemical sensor can be used to detect carbon monoxide concentration, an infrared sensor to detect carbon dioxide and methane concentrations, and an oxygen sensor to detect oxygen concentration. The control circuit board 22 can sequentially or synchronously read the data output from each sensor according to a preset sampling frequency, and perform filtering, temperature compensation, zero-point compensation, and outlier removal processing on the collected data to reduce the impact of transient interference, sensor drift, and cross-interference between different sensors on the detection results, thereby obtaining gas concentration data that reflects the current ambient gas state.

[0048] The gas concentration data of each target gas are compared with the corresponding preset safety threshold to determine the current gas detection status.

[0049] In this embodiment, different target gases correspond to different preset safety thresholds. For target gases such as carbon monoxide, carbon dioxide, and methane, which pose safety risks when their concentrations increase, the preset safety threshold can be the corresponding upper safety threshold. For oxygen, the preset safety threshold can include a lower safety concentration limit and an upper safety concentration limit. Each preset safety threshold can be pre-stored in the storage unit of the control circuit board 22, or it can be adjusted according to the application scenario, operating procedures, or user settings of the portable multi-functional warning light 1.

[0050] Specifically, the control circuit board 22 determines whether the gas concentration data of each target gas meets the corresponding safety threshold conditions. When the gas concentration data of carbon monoxide, carbon dioxide, or methane is greater than or equal to the corresponding upper safety threshold, the corresponding target gas is determined to be in an abnormal state; when the oxygen concentration is less than or equal to the lower safety limit, or greater than or equal to the upper safety limit, the oxygen is determined to be in an abnormal state. When all target gases meet the corresponding safety threshold conditions, the current gas detection state is determined to be a normal gas state; when at least one target gas does not meet the corresponding safety threshold conditions, the current gas detection state is determined to be a gas alarm state.

[0051] In one implementation, pre-alarm thresholds and formal alarm thresholds can be set for different target gases. When the concentration of a target gas reaches the pre-alarm threshold but has not yet reached the formal alarm threshold, the current gas detection state is determined to be a pre-alarm state; when the concentration of a target gas reaches the formal alarm threshold, the current gas detection state is determined to be a gas alarm state. By comparing multiple target gases separately and comprehensively determining the current gas detection state, it is possible to avoid judging environmental risks based on only a single target gas and improve the comprehensiveness of gas state judgment in complex operating environments.

[0052] When the current gas detection status is gas alarm status, generate an audible alarm control signal and a visual alarm control signal.

[0053] In this embodiment, when the control circuit board 22 determines that at least one target gas is in an abnormal state, it generates an audible alarm control signal and a visual alarm control signal based on the type of the abnormal target gas, gas concentration data, and the degree of deviation between the gas concentration data and the corresponding safety threshold. The audible alarm control signal is used to control the alarm volume, alarm frequency, duration, or intermittent period of the audible alarm component 18, and the visual alarm control signal is used to control the emission color, flashing frequency, emission brightness, or duration of the visual alarm component 13.

[0054] Specifically, the correspondence between different gas detection states and different alarm modes can be preset. For example, when the target gas is in a pre-alarm state, a low-frequency intermittent audible alarm control signal and a low-frequency flashing light alarm control signal are generated; when the target gas is in a gas alarm state, a high-frequency audible alarm control signal and a high-frequency flashing light alarm control signal are generated; when multiple target gases are simultaneously abnormal or the target gas concentration reaches a higher level of alarm threshold, the frequency of the audible alarm and the flashing light alarm are increased. Thus, matching audible and visual alarm signals can be generated according to the degree of gas risk, enabling users to promptly identify gas risks present in the current environment.

[0055] The sound alarm component 18 and the light alarm component 13 are controlled to work according to the sound alarm control signal and the light alarm control signal respectively, and the gas concentration data and gas alarm status are output through the display module.

[0056] In this embodiment, the control circuit board 22 drives the sound alarm component 18 to emit an alarm sound according to the sound alarm control signal, and drives the light alarm component 13 to output a warning light according to the light alarm control signal. The sound waves generated by the sound alarm component 18 are transmitted to the outside of the portable multi-functional warning light 1 through the sound cavity 112 on the bottom cover 11, and the light alarm component 13 outputs a visual warning signal to the outside through the third mounting part 125 on the lamp housing 12, thereby reminding the user of the presence of gas abnormalities in the current environment from both auditory and visual perspectives.

[0057] For example, the warning light source in the light alarm component 13 is constantly lit or flashing according to the light alarm control signal, and the display module displays the name of each target gas, real-time gas concentration data, corresponding safety threshold, and current gas alarm status. When multiple abnormal target gases are present, the display module can display each abnormal target gas in a preset order, or simultaneously display the concentration data of each abnormal target gas. The display module can also distinguish between normal gas status, pre-alarm status, and gas alarm status through different icons, graphics, or text. By synchronously outputting audible alarms, visual alarms, and gas detection information, users can receive timely risk warnings through different alarm methods in situations with high noise levels, obstructed vision, or complex environments.

[0058] The power supply status of power supply 16 is obtained, and under the condition of ensuring the normal operation of gas detection function and alarm function, the power consumption of warning light source and display module in sensing component 19, sound alarm component 18, lamp body component 10 and light alarm component 13 is controlled.

[0059] Understandably, power supply 16 simultaneously supplies power to the warning light source and display module in the lamp assembly 10, sensor assembly 19, audible alarm assembly 18, and visual alarm assembly 13, as well as the control circuit board 22. The lamp assembly 10 typically has a high power demand under high-brightness illumination conditions, and the audible alarm assembly 18 and visual alarm assembly 13 may also generate instantaneous power demands upon activation. When the remaining power of power supply 16 is low or multiple electrical components are operating simultaneously, supplying power to each component at a fixed power level may cause a voltage drop, resulting in unstable operation of the gas detection, audible alarm, or visual alarm.

[0060] In this embodiment, the control circuit board 22 acquires at least one of the following: battery voltage, remaining power, output current, low power state, and abnormal output state of the power supply 16. It then determines the current power requirement based on the currently enabled functions and the operating parameters of each power-consuming component. When the power supply 16 can meet the power requirements of all power-consuming components, the current operating state of each component is maintained. When the power supply 16 cannot simultaneously meet the power requirements of all power-consuming components, the power supply priority of each component is determined according to the current gas detection status. Priority is given to maintaining the operation of components related to safety detection and alarms, such as the warning light source in the sensing component 19, the sound alarm component 18, the light alarm component 13, and the control circuit board 22. The overall power consumption is reduced by lowering the lighting power of the lamp assembly 10, reducing the brightness of the display module, shortening the display module's illumination time, or putting unnecessary components into a low-power state. Therefore, when the power supply capacity of the power supply 16 is limited, priority can be given to ensuring gas detection and sound / light alarm functions, reducing the impact of high-power lighting on the stable operation of safety functions.

[0061] In one embodiment, the power supply status of the power supply 16 is obtained, and under the condition of ensuring the normal operation of the gas detection function and the alarm function, the power consumption of the warning light source and display module in the sensing component 19, the sound alarm component 18, the lamp body component 10 and the light alarm component 13 is controlled, specifically including the following steps.

[0062] Obtain the power supply status of power supply 16 and the current operating status of each power-consuming component.

[0063] In this embodiment, the power supply status of the power supply 16 reflects the current power supply capacity of the power supply 16 to maintain the operation of the entire machine. It may include at least one of battery voltage, remaining battery power, battery output status, and low battery status. The current operating status of each power-consuming component may include whether the sensing component 19 is in gas detection status, whether the sound alarm component 18 is in alarm status, whether the light alarm component 13 is in warning light output status, whether the lamp component 10 is in illumination status, and whether the display module is in display status.

[0064] Specifically, the control circuit board 22 can obtain the battery voltage through the power management circuit and determine the power supply status of the power supply 16 based on the battery voltage. Since the control circuit board 22 is used to control the lamp assembly 10, the sound alarm assembly 18, and the light alarm assembly 13, it can also determine the current operating status of each power-consuming component based on the currently output control signal. By simultaneously obtaining the power supply status of the power supply 16 and the current operating status of each power-consuming component, the load that the power supply 16 currently needs to support can be determined, avoiding power adjustments based solely on the battery voltage without considering the actual activated components.

[0065] Determine the current allowable output power of the portable multi-function warning light 1 based on the power supply status of power supply 16.

[0066] In this embodiment, the current permissible output power is used to characterize the output capability of power supply 16 to stably supply various electrical components under the current power supply state. Specifically, a correspondence between multiple battery voltage ranges and multiple permissible output powers or permissible output levels can be established in advance. When the current battery voltage is in the normal voltage range, it is determined that power supply 16 has a first permissible output power; when the current battery voltage is in the low charge range, it is determined that power supply 16 has a second permissible output power lower than the first permissible output power; when the current battery voltage is close to the minimum operating voltage, it is determined that power supply 16 only has a third permissible output power to maintain necessary safety functions.

[0067] In practical use, if the power management circuit can directly output the remaining power or low power status, the current allowable output power can also be determined based on the output status of the power management circuit. It should be noted that the current allowable output power is not necessarily equal to the theoretical maximum output power of power supply 16, but is used to limit the power range that multiple electrical components can use simultaneously under the current power supply state, so as to reduce the voltage drop caused by multiple loads starting up or operating at high power at the same time.

[0068] When the current gas detection state is a gas alarm state, the warning light source and control circuit board 22 in the sensing component 19, the sound alarm component 18, and the light alarm component 13 are identified as safety priority components.

[0069] In this embodiment, when the current gas detection status is normal, the lamp assembly 10 can operate according to the user-set lighting status, and each electrical component operates according to normal operating parameters. When at least one target gas becomes abnormal and enters a gas alarm state, the control circuit board 22 identifies the warning light source in the sensing assembly 19, the audible alarm assembly 18, and the visual alarm assembly 13, along with the control circuit board 22 itself, as the safety priority components. The sensing assembly 19 needs to continuously detect the gas concentration to determine whether the gas abnormality persists, worsens, or is resolved; the audible alarm assembly 18 and the visual alarm assembly 13 need to continuously output alarm signals to remind on-site personnel to take appropriate measures. Therefore, when the output capacity of the power supply 16 is insufficient, the operation of the aforementioned safety priority components should be prioritized.

[0070] Understandably, while the lamp assembly 10 provides ambient lighting, its high-brightness illumination typically consumes significant power. Therefore, in the gas alarm state, the lamp assembly 10 is a component whose power can be adjusted based on the supply capacity of the power supply 16. By changing the power priority of different components according to the current gas detection status, the power allocation can be transformed from fixed control to dynamic control that matches the safety risk state.

[0071] Based on the current operating parameters of the safety priority component, determine the alarm protection power corresponding to the gas alarm status.

[0072] In this embodiment, the alarm reserve power is used to characterize the power that is preferentially reserved to maintain the normal operation of the warning light source in the sensing component 19, the sound alarm component 18, the light alarm component 13, and the control circuit board 22. The control circuit board 22 can determine the detection power corresponding to the sensing component 19 according to the number, type, and operating status of the sensors; determine the sound alarm power corresponding to the sound alarm component 18 according to the driving status of the buzzer; determine the warning power corresponding to the warning light source according to the lighting status, flashing status, and brightness of the warning light source; and combine this with the basic operating power of the control circuit board 22 itself to obtain the alarm reserve power.

[0073] In one implementation, the power parameters of each component can be pre-stored in the storage unit of the control circuit board 22. The control circuit board 22 queries the corresponding power parameters according to the current operating status of each component and sums them. In another implementation, during the product testing phase, the warning light sources in the sensing component 19, the audible alarm component 18, and the visual alarm component 13 can be operated simultaneously to measure their stable operating power and peak starting power, and the alarm protection power can be pre-determined based on the test results. After the gas alarm is triggered, the control circuit board 22 directly calls the corresponding alarm protection power. When determining the alarm protection power, a preset power margin can also be added to compensate for power deviations caused by instantaneous current, battery voltage fluctuations, and differences in component parameters when the audible alarm component 18 is activated.

[0074] Based on the current allowable output power, alarm protection power, and the current lighting power of the lamp assembly 10, determine whether the power coordination triggering conditions are met.

[0075] In this embodiment, when the current allowed output power can simultaneously meet the alarm protection power and the current lighting power of the lamp assembly 10, it indicates that the power supply 16 can still stably maintain the gas detection, audible and visual alarm, and current lighting state. At this time, the power coordination trigger condition is not met, and the control circuit board 22 maintains the current lighting power of the lamp assembly 10. When the current allowed output power cannot simultaneously meet the alarm protection power and the current lighting power of the lamp assembly 10, it indicates that there is a power supply conflict between the safety priority component and the lamp assembly 10. At this time, the power coordination trigger condition is met, and the output power of the lamp assembly 10 needs to be adjusted.

[0076] In one implementation, the drop in battery voltage can also be detected after the sound alarm component 18 and the light alarm component 13 are activated. When the drop in battery voltage exceeds a preset drop threshold, even if the sum of the power of each component has not exceeded the current allowable output power according to the pre-stored power parameters, it can be determined that the power coordination triggering condition is met to compensate for the decrease in actual power supply capacity caused by battery aging or increased internal resistance. Therefore, the output power of the lamp component 10 is not necessarily reduced after a gas alarm occurs; power coordination is only triggered when the simultaneous operation of multiple components according to the current operating parameters may affect the stable operation of the safety priority component.

[0077] When the power coordination triggering conditions are met, the target lighting state of the lamp assembly 10 is determined based on the current allowable output power and the alarm protection power.

[0078] In this embodiment, the control circuit board 22 prioritizes reserving alarm protection power for the safety priority component from the current allowed output power, and then determines the target lighting state that the lamp assembly 10 can adopt based on the difference between the current allowed output power and the alarm protection power.

[0079] Specifically, the lamp assembly 10 can be set with multiple lighting levels, such as high brightness, medium brightness, low brightness, and off. Each lighting level corresponds to a different lighting power and drive duty cycle. When the remaining power supply is sufficient to maintain the current lighting level of the lamp assembly 10, the current lighting level is maintained. When the remaining power supply is insufficient to maintain the current lighting level but sufficient to maintain a lower lighting level, the lighting level with the highest lighting power is selected as the target lighting state from among multiple lighting levels whose lighting power does not exceed the remaining power supply. When the remaining power supply is insufficient to maintain the lowest lighting level, the lamp assembly 10 is turned off, or the lamp assembly 10 enters a lower power intermittent lighting state. By determining the lighting state of the lamp assembly 10 after meeting the power requirements of the safety priority components, necessary lighting capabilities can be preserved as much as possible while prioritizing gas detection and audible and visual alarms.

[0080] Adjust the output power of the lamp assembly 10 according to the target lighting conditions and maintain the operation of the safety priority component.

[0081] In this embodiment, the control circuit board 22 determines the target driving parameters corresponding to the lamp assembly 10 based on the target lighting state and generates a lighting control signal. Specifically, when the target lighting state is a lower lighting level, the control circuit board 22 reduces the driving power of the lamp assembly 10 by adjusting the duty cycle of the main lighting PWM control signal; when the target lighting state is off, the control circuit board 22 turns off the driving circuit of the lamp assembly 10 through the LED enable signal. The main lighting PWM control interface and the LED enable interface provide the hardware control basis for the corresponding power adjustment.

[0082] While reducing or turning off the lamp assembly 10, the control circuit board 22 maintains the sensing component 19 continuously detecting the gas concentration, maintains the audible alarm component 18 emitting an alarm sound, and maintains the visual alarm component 13 outputting a warning light. During the gas alarm state, the control circuit board 22 can also periodically reconnect the power supply to the power supply 16. When the output capacity of the power supply 16 continues to decrease, the lighting level of the lamp assembly 10 is further reduced; when the current gas detection state returns to a normal gas state and the power supply state of the power supply 16 meets the recovery conditions, the lamp assembly 10 is restored to the lighting state before the gas alarm, or restored to the lighting state allowed by the current permitted output power. Through the above steps, the lamp assembly 10 can yield power to the safety priority component when necessary, reducing the impact of high power output of the main lighting on the stability of gas detection and audible and visual alarms.

[0083] It should be noted that the safety priority components may include the sensing component 19, the audible alarm component 18, the warning light source in the visual alarm component 13, and the control circuit board 22. The sensing component 19 needs to acquire gas concentration data for each target gas at a certain sampling frequency. If the sensing component 19 always uses a high sampling frequency, although it can improve the timeliness of gas detection, it will increase the continuous power consumption of the device when the gas risk is low. If the sensing component 19 always uses a low sampling frequency, it may not be able to reflect environmental changes in a timely manner when the gas concentration approaches or exceeds the corresponding safety threshold. Therefore, the sampling frequency of the sensing component 19 can be dynamically adjusted according to the gas risk status and the power supply status of the power supply 16.

[0084] In one embodiment, the alarm protection power corresponding to the gas alarm state is determined based on the current operating parameters of the safety priority component, specifically including the following steps.

[0085] Acquire the current concentration data of each target gas, the corresponding safety threshold, and the current sampling frequency of the sensing component 19.

[0086] In this embodiment, the control circuit board 22 acquires gas concentration data output by multiple sensors in the sensing component 19 at the current sampling time, and reads the safety threshold corresponding to each target gas. The safety threshold may include the upper safety limit thresholds for target gases such as carbon monoxide, carbon dioxide, and methane, as well as the safe concentration range for oxygen. The control circuit board 22 also acquires the sampling frequency currently used by the sensing component 19 to determine whether the current gas detection speed matches the environmental risk state.

[0087] Specifically, the current sampling frequency can be represented by the number of samples per unit time or by the time interval between two adjacent gas data acquisitions. The higher the sampling frequency, the shorter the time interval between two adjacent acquisitions, which allows for more timely acquisition of gas concentration changes. However, the power consumption for data reading and processing of the sensing component 19 and the control circuit board 22 also increases accordingly.

[0088] The current gas risk status is determined based on the relationship between the current concentration data of each target gas and the corresponding safety threshold.

[0089] In this embodiment, the current gas risk status can include a normal detection status, a near-threshold status, and a gas alarm status. When the current concentration data of each target gas meets the corresponding safety threshold condition and maintains a preset safety margin with respect to the corresponding safety threshold, the current gas risk status is determined to be a normal detection status. When at least one target gas still meets the corresponding safety threshold condition, but the difference between its current concentration data and the corresponding safety threshold is less than a preset concern difference, the current gas risk status is determined to be a near-threshold status. The near-threshold status indicates that the target gas has not yet reached the formal alarm condition but is approaching the safety boundary, requiring a shorter subsequent detection interval. When at least one target gas does not meet the corresponding safety threshold condition, the current gas risk status is determined to be a gas alarm status.

[0090] It should be noted that the current gas detection state and the current gas risk state are used in different control processes. The current gas detection state indicates whether an audible alarm or visual alarm is triggered, while the current gas risk state indicates the sampling frequency adjustment level of the sensing component 19. The normal gas state in the current gas detection state corresponds to the normal detection state in the current gas risk state, the pre-alarm state corresponds to the near-threshold state, and the gas alarm state corresponds to the gas alarm state. Therefore, the control circuit board 22 can execute alarm trigger control and sampling frequency adjustment control respectively based on the same set of gas concentration data.

[0091] For oxygen, the distance between the current oxygen concentration and the lower and upper limits of the safe concentration range can be used to determine whether it has entered the near-threshold state; for target gases such as carbon monoxide, carbon dioxide, and methane, whose concentrations are increasing, the current gas risk status can be determined based on the difference between the current concentration and the upper limit of the safe concentration range.

[0092] The target sampling frequency of the sensing component 19 is determined based on the current gas risk status and the power supply status of the power supply 16.

[0093] In this embodiment, when the current gas risk state is a normal detection state and the power supply of the power supply 16 meets the normal power supply conditions, the control circuit board 22 controls the sensing component 19 to collect gas concentration data according to the first sampling frequency. The first sampling frequency is used to meet the continuous monitoring requirements under normal conditions and reduce the power consumption generated by the sensing component 19 and the control circuit board 22 performing high-frequency acquisition and data processing for a long time. When the current gas risk state is near the threshold state, the target sampling frequency is adjusted to a second sampling frequency higher than the first sampling frequency to shorten the time interval between two adjacent gas detections and to promptly determine whether the target gas has further reached the alarm condition or moved away from the safety threshold again. When the current gas risk state is a gas alarm state, the sensing component 19 is made to operate at an alarm sampling frequency not lower than the second sampling frequency to continuously acquire gas concentration data during the alarm period and to determine whether the abnormal gas state continues, worsens, or is resolved.

[0094] When the power supply 16 is in a low-battery state, if the current gas risk state is still in a normal detection state, the target sampling frequency of the sensing component 19 can be appropriately reduced to decrease power consumption during normal detection. If the current gas risk state is near the threshold or in a gas alarm state, the target sampling frequency will not be reduced below the preset safe sampling frequency due to the low battery level. Instead, the gas detection will be maintained primarily by reducing the output power of the lamp component 10. This ensures that the sampling frequency adjustment is consistent with the safety-first power coordination, reducing the sampling frequency to save power under normal conditions and prioritizing the necessary detection frequency under risk conditions.

[0095] The target detection power corresponding to the sensing component 19 is determined based on the target sampling frequency.

[0096] In this embodiment, the control circuit board 22 can pre-store the correspondence between different sampling frequencies and the detection power of the sensing component 19. This correspondence can be obtained through actual power consumption testing of the sensing component 19 at different sampling frequencies. The higher the target sampling frequency, the more times the sensor is activated, gas concentration data is read, and the control circuit board 22 performs data processing per unit time, and the target detection power of the sensing component 19 is correspondingly increased; when the target sampling frequency decreases, the average detection power of the sensing component 19 is correspondingly decreased.

[0097] For sensors requiring continuous power supply or preheating, adjusting the sampling frequency can primarily alter the frequency of gas concentration data reading and processing, without frequently cutting off the sensor's base power supply, thus avoiding repeated start-stop cycles that could affect the sensor's detection stability. For sensors capable of entering a low-power state, this low-power operation can be maintained between adjacent sampling times. By determining the target detection power based on the target sampling frequency, the subsequent alarm protection power can be matched to the actual detection state of the sensing component 19, rather than always using a fixed detection power.

[0098] The alarm protection power is determined based on the target detection power and the corresponding operating power of the warning light source and control circuit board 22 in the sound alarm component 18 and the light alarm component 13.

[0099] In this embodiment, when the current gas risk state is a gas alarm state, the control circuit board 22 determines the basic power requirement under the alarm state based on the target detection power corresponding to the target sampling frequency, the sound alarm power of the sound alarm component 18, the warning power of the warning light source, and the basic operating power of the control circuit board 22. A preset power margin is then added to the basic power requirement to obtain the alarm protection power. The preset power margin is used to compensate for power deviations caused by the activation of the sound alarm component 18, the simultaneous illumination of the warning light source, battery voltage fluctuations, and changes in sensor power consumption.

[0100] When the target sampling frequency is increased, the target detection power and alarm protection power of the sensing component 19 are increased accordingly, and the remaining power that can be allocated to the lamp body component 10 is reduced accordingly. When the device is in normal detection state and the target sampling frequency is reduced, the detection power consumption of the sensing component 19 is reduced accordingly, thereby extending the continuous working time of the portable multi-functional warning light 1.

[0101] During subsequent gas detection, the concentration data of each target gas is continuously updated, the current gas risk status is reassessed, and the target sampling frequency is adjusted based on the reassessed current gas risk status.

[0102] In this embodiment, the control circuit board 22 continuously updates the gas concentration data of each target gas during subsequent gas detection and redetermines the current gas risk status. When a target gas changes from a normal detection state to a near-threshold state or a gas alarm state, the target sampling frequency is increased; when the gas alarm state is lifted, but the target gas is still in the near-threshold state, the second sampling frequency is maintained; when each target gas moves away from its corresponding safety threshold again and continues to reach a preset stabilization time, the target sampling frequency is restored to the first sampling frequency.

[0103] A preset stabilization time is used to prevent the sensing component 19 from frequently switching between different sampling frequencies when the target gas concentration fluctuates near a safe threshold. By dynamically adjusting the sampling frequency according to the current gas risk state, power consumption can be reduced when the gas risk is low, and detection timeliness can be improved when the gas risk increases.

[0104] In one embodiment, adjusting the output power of the lamp assembly 10 according to the target lighting state and maintaining the operation of the safety priority component specifically includes the following steps.

[0105] Based on the target lighting conditions, the current lighting power of the lamp assembly 10 is adjusted to a target lighting power that is not lower than the preset minimum safe lighting power.

[0106] In this embodiment, the preset minimum safe lighting power is used to characterize the lighting power required to maintain basic working visibility during a gas alarm. It can be predetermined based on the light distribution parameters of the lamp assembly 10, the operating distance of the portable multi-functional warning light 1, and the minimum illuminance requirements of the target working area. The control circuit board 22 reduces the lighting power of the lamp assembly 10 from the current lighting power to the target lighting power according to the driving current or driving duty cycle corresponding to the target lighting state, so as to release the power used to activate the alarm component and ensure that the adjusted target lighting power is not lower than the preset minimum safe lighting power.

[0107] Obtain the starting power, stable operating power, and starting duration of the sound alarm component 18, the warning light source, and the display module, respectively.

[0108] In this embodiment, the startup power characterizes the power requirement of the corresponding component during the transition from a shutdown or low-power state to an operating state; the stable operating power characterizes the power required for the corresponding component to maintain its current alarm or display state after startup; and the startup duration characterizes the duration from receiving the startup control signal to entering a stable operating state. These parameters can be obtained in advance through product testing and stored in the storage unit of the control circuit board 22, or they can be read from a preset parameter table according to the component's current operating level.

[0109] The sound alarm component 18 and the warning light source are designated as the first priority components, the display module is designated as the second priority component, and multiple candidate start-up sequences are determined under the condition that the first priority component starts before the second priority component.

[0110] In this embodiment, the audible alarm component 18 and the warning light source are used to output audible and visual alarms, respectively, and both need to enter the working state before the display module. The control circuit board 22 can determine the candidate startup order as "audible alarm component 18, warning light source, display module" and "warning light source, audible alarm component 18, display module". When the display module is already in the working state, it can also be put into a low-power display state first, and then the audible alarm component 18 and the warning light source can be started according to the above candidate startup order.

[0111] Based on the current allowable output power, target lighting power, and the corresponding start-up power, stable operating power, and start-up duration of each component, determine the predicted peak power and alarm start-up completion time corresponding to each candidate start-up sequence.

[0112] In this embodiment, for any candidate startup sequence, the control circuit board 22 combines the target lighting power, the operating power of the sensing component 19 and the control circuit board 22, the stable operating power of the component that has entered a stable operating state, and the startup power of the component to be started, according to the startup order of each component, to obtain the predicted output power during the startup period of that component, and determines the maximum value among the predicted output powers during each startup period as the predicted peak power corresponding to that candidate startup sequence. The alarm startup completion time is the time required from the startup of the first component until the sound alarm component 18, the warning light source, and the display module in that candidate startup sequence all enter their corresponding operating states.

[0113] The target startup sequence is determined from the candidate startup sequences whose predicted peak power does not exceed the current allowable output power, based on the alarm startup completion time and the predicted peak power.

[0114] In this embodiment, the control circuit board 22 first eliminates candidate startup sequences whose predicted peak power exceeds the current allowable output power, and then selects the candidate startup sequence with the shorter alarm startup completion time from the remaining candidate startup sequences as the target startup sequence. When multiple candidate startup sequences correspond to the same alarm startup completion time, the candidate startup sequence with the lower predicted peak power is selected as the target startup sequence to reduce the output fluctuation of the power supply 16 during the startup of each alarm component.

[0115] The sound alarm component 18, the warning light source, and the display module are activated sequentially according to the target activation order. After the previous component enters a stable working state, the activation timing of the next component is determined based on the stable working power of the previous component and the current allowable output power.

[0116] In this embodiment, the control circuit board 22 outputs start control signals to each component sequentially according to the target start sequence, and determines whether the previous component has entered a stable working state based on the pre-stored start duration, the working status signal fed back by the component, or the change in the power supply output current. After the previous component enters a stable working state, the control circuit board 22 determines the current remaining available power based on the target lighting power, the stable working power of each currently started component, and the working power of the sensing component 19 and the control circuit board 22. When the current remaining available power can meet the start power of the next component, the next component is started, thereby matching the start interval between adjacent components with the actual start process of the previous component.

[0117] When the remaining available power is insufficient to start the next component, the output power of the lamp assembly 10 is reduced to the preset minimum safe lighting power, or the display module is turned off or put into a low power state.

[0118] In this embodiment, when the remaining available power is insufficient to activate the audible alarm component 18 or the warning light source, the control circuit board 22 can further adjust the lamp assembly 10 to a lighting state with a lower lighting power but not lower than the preset minimum safe lighting power, and redetermine the remaining available power. When the lamp assembly 10 is already in the lighting state corresponding to the preset minimum safe lighting power, but the remaining available power is still insufficient to activate the display module, the control module is kept off, or it enters a low-power display state by reducing the display brightness, shortening the lighting time, or reducing the display content, so as to prioritize the normal operation of the audible alarm component 18 and the warning light source.

[0119] Through the above control process, the lighting power of the lamp assembly 10 can be used to adjust and release the alarm start power first. Then, the start order and start interval can be selected according to the start power, stable working power and start duration of each alarm assembly. This reduces the instantaneous power superposition caused by the simultaneous start of the sound alarm assembly 18, the warning light source and the display module. Even when the power supply capacity of the power supply 16 is limited, the sound and light alarm can still be completed first and basic lighting can be maintained.

[0120] It should be noted that the exemplary embodiments mentioned in this invention describe methods or systems based on a series of steps or apparatus. However, this invention is not limited to the order of the steps described above; that is, the steps can be performed in the order mentioned in the embodiments, or in a different order, or several steps can be performed simultaneously.

[0121] The above are merely specific embodiments of the present invention. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the above components and control steps can be referred to the foregoing embodiments, and will not be repeated here. It should be understood that the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the protection scope of the present invention.

Claims

1. A portable multi-functional warning light, characterized in that, include: The lamp body assembly includes a base cover, a lamp housing, a sound alarm assembly, a light alarm assembly, a sensor assembly, a power supply, and a control circuit board. The base cover is connected to the lamp housing to form a sealed receiving cavity. The base cover has a fifth mounting part and a sound cavity. The sound alarm assembly is connected to the sound cavity, and the sensor assembly is connected to the fifth mounting part. The sensor assembly includes at least one sensor. The outer side of the base cover has a vent hole corresponding to the sensor. A baffle channel is provided between the vent hole and the detection surface of the corresponding sensor. The inlet and outlet of the baffle channel are staggered. A third mounting part is provided on the lamp housing. The light alarm component is connected to the third mounting part; a bracket is provided inside the receiving cavity, and the bracket is connected to the lamp housing; the power supply is fixed to the side of the bracket near the top of the receiving cavity; the control circuit board is located on the side of the bracket away from the power supply, defining the direction perpendicular to the bottom cover as the first direction, and defining the plane perpendicular to the first direction as the first projection plane, on the first projection plane, the orthographic projection of the fifth mounting part and the orthographic projection of the sound cavity are spaced apart from each other; the lamp body assembly, the sound alarm component, the light alarm component, the sensing component, and the power supply are all electrically connected to the control circuit board; The sensing component includes a plurality of sensors, and the fifth mounting part includes a plurality of mounting slots corresponding to the plurality of sensors. Each mounting slot has a circumferentially formed adhesive groove at its bottom. Each sensor is fixed to the corresponding mounting slot by adhesive disposed in the corresponding adhesive groove. The vent includes a plurality of vents corresponding to the plurality of mounting slots. The inlet and outlet of each baffle air guide channel are staggered in the thickness direction and / or radial direction of the bottom cover. Each of the baffled air channels includes an inlet communicating with the corresponding air vent and an outlet facing the detection surface of the corresponding sensor. A waterproof and breathable membrane is provided at the outlet of each of the baffled air channels. On the first projection plane, the orthographic projection of the inlet of each of the baffle air guide channels does not completely coincide with the orthographic projection of the corresponding outlet. The orthographic projection of the corresponding air vent at least partially overlaps with the orthographic projection of the inlet. The orthographic projections of the corresponding outlet, the waterproof and breathable membrane, and the detection surface of the sensor at least partially overlap. On the first projection plane, the orthographic projection of the sensing component is at least partially located within the orthographic projection range of the fifth mounting portion, and the orthographic projection of the sound alarm component is at least partially located within the orthographic projection range of the sound cavity.

2. The portable multi-functional warning light according to claim 1, characterized in that, The lamp assembly includes a heat sink, a lamp plate, a reflector, a buffer, a lens, and a lamp cover. The lamp plate is mounted on the heat sink, and the reflector is detachably connected to the heat sink to position the lamp plate between the heat sink and the reflector. The end of the reflector away from the lamp plate is connected to the lens via the buffer. The side of the lens away from the reflector abuts against the lamp cover. The lamp cover is fixedly connected to the heat sink to position the lamp plate, reflector, buffer, and lens between the heat sink and the lamp cover. The heat sink includes a lamp head adjustment section, and the lamp housing includes a lamp housing wiring groove. The heat sink is movably connected to the lamp housing wiring groove via the lamp head adjustment section.

3. The portable multi-functional warning light according to claim 2, characterized in that, The lamp housing also includes a second mounting portion, and the end of the heat sink away from the reflector is disposed in the second mounting portion.

4. The portable multi-functional warning light according to claim 3, characterized in that, The lamp housing also includes a handle, and a button fixing hole is provided at one end of the handle near the lamp body assembly; The portable multi-functional warning light also includes a button assembly, which is disposed in the button fixing hole. The handle has a wiring channel extending downward from the button fixing hole, and the connecting wire of the button assembly passes through the wiring channel and is electrically connected to the control circuit board.

5. A control method, characterized in that, The method applied to the control of the portable multi-functional warning light according to claim 4, wherein the light alarm component includes a warning light source and a display module, comprises: Based on the user's input function control commands, control the sensing components and lamp components to enter the corresponding working states; When the sensing component is in working condition, it collects gas concentration data of various target gases in the environment. The gas concentration data of each target gas are compared with the corresponding preset safety threshold to determine the current gas detection status; When the current gas detection state is a gas alarm state, an audible alarm control signal and a visual alarm control signal are generated; The sound alarm control signal and the light alarm control signal are used to control the sound alarm component and the light alarm component respectively, and the gas concentration data and gas alarm status are output through the display module. The power supply status is obtained, and under the premise of ensuring the normal operation of the gas detection function and the alarm function, the power consumption of the sensing component, the sound alarm component, the lamp component, and the warning light source and display module in the light alarm component are controlled.

6. The control method according to claim 5, characterized in that, The steps of acquiring the power supply status and, under the premise of prioritizing the normal operation of the gas detection and alarm functions, controlling the power consumption of the sensing components, sound alarm components, lamp components, and warning light sources and display modules in the light alarm components include: Obtain the power supply status of the power source and the current operating status of each power-consuming component; Determine the current allowable output power of the portable multi-functional warning light based on the power supply status of the power source; When the current gas detection state is a gas alarm state, the warning light source and control circuit board in the sensing component, sound alarm component, and light alarm component are identified as safety priority components; Based on the current operating parameters of the safety priority component, determine the alarm protection power corresponding to the gas alarm state; Based on the current allowed output power, the alarm protection power, and the current lighting power of the lamp assembly, determine whether the power coordination triggering condition is met; When the power coordination triggering condition is met, the target lighting state of the lamp assembly is determined based on the current allowed output power and the alarm protection power. Adjust the output power of the lamp assembly according to the target lighting state, and maintain the operation of the safety priority component.

7. The control method according to claim 6, characterized in that, The step of determining the alarm protection power corresponding to the gas alarm state based on the current operating parameters of the safety priority component includes: Acquire the current concentration data of each target gas, the corresponding safety threshold, and the current sampling frequency of the sensing components; The current gas risk status is determined based on the relationship between the current concentration data of each target gas and the corresponding safety threshold. The target sampling frequency of the sensing component is determined based on the current gas risk status and the power supply status. The target detection power corresponding to the sensing component is determined based on the target sampling frequency; The alarm protection power is determined based on the target detection power and the operating power of the warning light source and control circuit board in the sound alarm component and the light alarm component. During subsequent gas detection, the concentration data of each target gas is continuously updated, the current gas risk status is reassessed, and the target sampling frequency is adjusted based on the reassessed current gas risk status.

8. The control method according to claim 7, characterized in that, The steps of adjusting the output power of the lamp assembly according to the target lighting state and maintaining the operation of the safety priority assembly include: Based on the target lighting state, the current lighting power of the lamp assembly is adjusted to a target lighting power that is not lower than the preset minimum safe lighting power; The startup power, stable operating power, and startup duration of the sound alarm component, the warning light source, and the display module are obtained respectively. The sound alarm component and the warning light source are designated as first priority components, the display module is designated as a second priority component, and multiple candidate start-up sequences are determined under the condition that the first priority component starts before the second priority component. Based on the current allowed output power, the target lighting power, and the start-up power, stable operating power, and start-up duration of each component, determine the predicted peak power and alarm start-up completion duration corresponding to each candidate start-up sequence; From the candidate start-up sequences whose predicted peak power does not exceed the current allowed output power, the target start-up sequence is determined based on the alarm start-up completion time and the predicted peak power. The sound alarm component, the warning light source, and the display module are activated sequentially according to the target activation order. After the previous component enters a stable working state, the activation timing of the next component is determined based on the stable working power of the previous component and the current allowed output power. When the remaining available power is insufficient to start the next component, the output power of the lamp assembly is reduced to the preset minimum safe lighting power, or the display module is turned off or put into a low power state.

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