Intelligent explosion-proof lamp system based on LoRA communication

Abstract

The utility model provides a kind of intelligent explosion-proof lamp system based on LoRA communication, including the light-adjusting power module for adjusting output electric energy, the light-adjusting power module is connected with the power module for power supply and the LED module for emitting light respectively, the control end of the light-adjusting power module is connected with the MCU module for data processing, and the MCU module and LORA module data intercommunication.The utility model can significantly reduce the cost of infrastructure, and also enable long-distance wireless communication in complex environment.

Description

Technical Field

[0001] This utility model relates to the field of industrial explosion-proof lighting technology, specifically to an intelligent explosion-proof lighting system based on LoRA communication. Background Technology

[0002] In industries such as petroleum, chemical, coal mining, metallurgy, and pharmaceuticals, flammable and explosive gases, dust, and vapors may be generated or encountered during production processes. Once these substances mix with oxygen in the air and reach a certain concentration, they can ignite upon contact with sparks from ordinary lighting equipment or high-temperature surfaces, potentially causing explosions or fires, resulting in serious casualties and property damage.

[0003] To avoid such safety accidents and ensure the smooth operation of industrial production and personnel safety, specially designed explosion-proof lighting equipment is required. Currently, industrial explosion-proof lighting mainly suffers from three defects: wiring safety hazards, outdated control methods, and low energy efficiency. Explosion-proof lighting wiring presents challenges, such as the need for independent communication lines in high-risk scenarios, increasing construction costs (approximately 40% of the total project cost), and the additional cables potentially becoming a source of explosion. Explosion-proof lighting control suffers from the problem that most explosion-proof lights still use mechanical switches or simple relays, failing to achieve group-based strategic control. Traditional explosion-proof light sources (such as metal halide lamps) generally have a luminous efficacy below 80 lm / W and lack dynamic dimming capabilities, resulting in low energy efficiency.

[0004] In existing technologies, wireless communication is carried out using wireless protocols such as Zigbee / WIFI, but there are problems such as the communication signal being easily blocked and the transmission distance being limited. Utility Model Content

[0005] In view of this, the problem to be solved by this utility model is to provide an intelligent explosion-proof light system based on LoRA communication, which can communicate wirelessly over long distances in complex environments.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A smart explosion-proof lighting system based on LoRA communication includes a dimming power supply module for adjusting the output power. The dimming power supply module is connected to a power supply module for power supply and an LED module for light emission. The control terminal of the dimming power supply module is connected to an MCU module for data processing. The MCU module and the LoRA module communicate with each other.

[0007] Furthermore, the LORA module uses the 470MHz frequency band for wireless communication.

[0008] Furthermore, the output terminal of the power supply module is electrically connected to an electrical parameter acquisition module that collects voltage and current data, and the output terminal of the electrical parameter acquisition module is connected to the MCU module.

[0009] Furthermore, the MCU module is an APM2 series module.

[0010] Furthermore, the LORA module includes a communication chip U8, with an antenna pad U15 connected in series between the wireless communication pin of the communication chip U8 and the ground terminal. The communication chip U8 is connected to the MCU module through a digital communication pin and a status adjustment pin, respectively.

[0011] Furthermore, the electrical parameter acquisition module includes a sampling chip U3, with several resistors connected in series between the voltage sampling pin of the sampling chip U3 and the output terminal of the power supply module, and the output pin of the sampling chip U3 is connected to the MCU module.

[0012] Furthermore, a resistor R3 is connected in series between the current sampling pin of the sampling chip U3 and the output terminal of the power module, a resistor U4 for current shunting is connected in series between the input terminal of the resistor R3 and the ground, and a capacitor C4 for voltage regulation is connected in series between the output terminal of the resistor R3 and the ground.

[0013] Furthermore, the dimming power supply module includes a pulse chip U10, and the control pins of the pulse chip U10 are connected to the MCU module.

[0014] Furthermore, a Zener diode is connected in series between the output pin of the pulse chip U10 and the ground electrode.

[0015] The advantages and positive effects of this utility model are: By setting up LoRA modules, MCU modules, and dimming power supply modules, and utilizing LoRA wireless communication technology, the need to lay dedicated communication cables or optical fibers is avoided, thereby significantly reducing infrastructure costs. The MCU module can precisely control the LED modules according to the instructions of the server in the main control room, realizing dimming and switching operations, improving the energy efficiency and management efficiency of the lamps.

[0016] By setting up an electrical parameter acquisition module, this module can monitor the power supply parameters of the lamps in the LED module in real time. The power supply parameters are then uploaded to the server in the main control room via the LoRA module, which reflects the working status of the lamps in a timely manner, facilitating remote monitoring and management of the lamps. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a structural diagram of an intelligent explosion-proof light system based on LoRA communication according to this utility model; Figure 2This is a circuit diagram of the LORA module in an intelligent explosion-proof light system based on LoRA communication according to this utility model; Figure 3 This is a circuit diagram of an electrical parameter acquisition module for an intelligent explosion-proof light system based on LoRA communication, according to this utility model. Figure 4 This is a circuit diagram of a dimming power supply module in an intelligent explosion-proof lighting system based on LoRA communication, according to this utility model. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed terms.

[0020] This utility model provides an intelligent explosion-proof lighting system based on LoRA communication, such as... Figure 1 As shown, the system includes an LED module for emitting light, a dimming power supply module for adjusting output power, a power supply module for supplying power, an MCU module for data processing, and a LoRa module for wireless communication. The output terminal of the power supply module is electrically connected to the input terminal of the dimming power supply module, the output terminal of the dimming power supply module is electrically connected to the LED module, and the control terminal of the dimming power supply is electrically connected to the MCU module. The MCU module and the LoRa module communicate with each other. In one embodiment of this application, the MCU module can be an APM2 series module.

[0021] The working process of the above system is as follows: the LORA module receives the control signal sent by the central control room and transmits it to the MCU module. The MCU module controls the pulse width of the output terminal of the dimming power supply module according to the control signal, thereby controlling the brightness of the LED lamp in the LED module.

[0022] One embodiment of this application is: an industrial explosion-proof lamp is a special lighting device used in industrial sites where there are flammable and explosive hazardous environments. The LoRA module is encapsulated inside the explosion-proof cavity of the explosion-proof lamp, which can reduce the risk of fire or explosion.

[0023] LoRa (Long Range Radio) is a low-power wide-area network technology specifically designed for long-range communication of IoT devices. LoRa modules use the 470MHz frequency band (approved by the Ministry of Industry and Information Technology of China) for wireless transmission. In urban environments, LoRa can achieve a communication distance of 3-5 kilometers, and in open areas, it can even cover more than 10 kilometers. In complex environments such as mines / chemical plants, it can still maintain a stable communication distance of 1-3 kilometers, enabling long-range wireless communication in complex environments.

[0024] LoRa features ultra-low power consumption, with a sleep current as low as 0.1μA and a data transmission current of only 30mA. A single AA battery can support the device's operation for 10 years, eliminating the need for frequent replacements of explosion-proof lights. A single LoRa gateway can connect 50,000 to 100,000 devices. LoRa offers flexible networking options, including star, tree, mesh, and other common network configurations, facilitating the large-scale deployment of explosion-proof lights.

[0025] The power module's output is electrically connected to an electrical parameter acquisition module that collects voltage and current data. The output of this module is connected to an MCU module to transmit the collected voltage and current data. The MCU module then transmits the voltage and current data to the central control room via a LoRa module, allowing the central control room to determine the power supply status of the explosion-proof lights, facilitate the timely detection of lights with abnormal power supply, and dispatch them for repair.

[0026] like Figure 2 As shown, the LORA module includes a communication chip U8. An antenna pad U15 is connected in series between the AN pin (wireless communication pin) of the communication chip U8 and the ground. The antenna pad U15 is used to receive wireless signals and convert them into electrical signals. The communication chip U8 is connected to the MCU module through the RXD pin and TXD pin for communication. The communication chip U8 is used to convert electrical signals into digital signals. The digital signals are then transmitted to the MCU module through the RXD pin and TXD pin (digital communication pins) to realize data reception.

[0027] The communication chip U8 is connected to the MCU module via pins M0 and M1 (status adjustment pins). The MCU module can change the operating mode of the communication chip U8 by simultaneously adjusting the voltage levels of pins M0 and M1. One embodiment of this application specifies that the communication chip U8 is model E22-400T22S, and its operating modes include normal mode, WOR transmit mode, WOR receive mode, and sleep mode. Another embodiment of this application specifies that the communication chip U8 is model E22-400T22S.

[0028] like Figure 3As shown, the electrical parameter acquisition module includes a sampling chip U3. Resistors R8, R7, R6, and R5 are connected in series between the VP pin (voltage sampling pin) of the sampling chip U3 and the output terminal of the power supply module. The output voltage of the power supply module is input to the sampling chip U3 after being processed by several voltage components to realize the acquisition of voltage signals.

[0029] A resistor R3 is connected in series between the IP pin (current sampling pin) of the sampling chip U3 and the output terminal of the power supply module. A resistor U4 for current shunting is connected in series between the input terminal of resistor R3 and the ground terminal. A capacitor C4 for voltage regulation is connected in series between the output terminal of resistor R3 and the ground terminal. The output current of the power supply module is input to the sampling chip U3 after being shunted and regulated, thereby realizing the acquisition of the current signal.

[0030] The TX pin (output pin) of the sampling chip U3 is connected to the MCU module to transmit the acquired voltage and current signals to the MCU module. The MCU module then sends the current and voltage signals to the central control room via the LORA module. In one embodiment of this application, the sampling chip U3 is model HLW8032.

[0031] like Figure 4 As shown, the dimming power supply module includes a pulse chip U10. The VCC pin of the pulse chip U10 is electrically connected to the output terminal of the power supply module, the PWM pin (control pin) of the pulse chip U10 is connected to the MCU module, and the VOUT pin of the pulse chip U10 is electrically connected to the LED module. The pulse chip U10 receives electrical energy output from the power supply module through the VCC pin, and the MCU module controls the pulse width of the electrical energy output through the VOUT pin of the pulse chip U10 through the PWM pin, thereby adjusting the brightness of the LEDs in the LED module. In one embodiment of this application, the pulse chip U10 is model GP8101-F50-N-SW.

[0032] A Zener diode D1 is connected in series between the VOUT pin (output pin) of the pulse chip U10 and ground. The Zener diode is used to ensure that the output voltage does not exceed the Zener voltage value of the Zener diode D1, thus preventing damage to the LEDs in the LED module. In one embodiment of this application, the breakdown voltage of the Zener diode D1 is 12V.

[0033] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and should not be considered as limiting the scope of implementation of this utility model. All equivalent changes and improvements made within the scope of this utility model should still fall within the scope of this patent.

Claims

1. A LoRA communication based intelligent explosion-proof lamp system, characterized in that, It includes a dimming power supply module for adjusting the output power, which is connected to a power supply module for power supply and an LED module for light emission. The control terminal of the dimming power supply module is connected to an MCU module for data processing, and the MCU module communicates with the LORA module.

2. The intelligent explosion-proof lamp system based on LoRA communication according to claim 1, characterized in that, The LORA module uses the 470MHz frequency band for wireless communication. 3.The intelligent explosion-proof lamp system based on LoRA communication of claim 1, wherein, The output of the power module is electrically connected to an electrical parameter acquisition module that collects voltage and current data, and the output of the electrical parameter acquisition module is connected to the MCU module.

4. The intelligent explosion-proof lamp system based on LoRA communication according to claim 1, characterized in that, The MCU module is an APM2 series module.

5. The intelligent explosion-proof lamp system based on LoRA communication according to claim 1, characterized in that, The LORA module includes a communication chip U8, with an antenna pad U15 connected in series between the wireless communication pin of the communication chip U8 and the ground. The communication chip U8 is connected to the MCU module through a digital communication pin and a status adjustment pin.

6. The intelligent explosion-proof lamp system based on LoRA communication according to claim 3, characterized in that, The electrical parameter acquisition module includes a sampling chip U3. Several resistors are connected in series between the voltage sampling pin of the sampling chip U3 and the output terminal of the power supply module. The output pin of the sampling chip U3 is connected to the MCU module.

7. The intelligent explosion-proof lamp system based on LoRA communication according to claim 6, characterized in that, A resistor R3 is connected in series between the current sampling pin of the sampling chip U3 and the output terminal of the power module. A resistor U4 for current shunting is connected in series between the input terminal of the resistor R3 and the ground. A capacitor C4 for voltage regulation is connected in series between the output terminal of the resistor R3 and the ground. 8.The intelligent explosion-proof lamp system based on LoRA communication of claim 1, wherein, The dimming power supply module includes a pulse chip U10, and the control pins of the pulse chip U10 are connected to the MCU module. 9.The intelligent explosion-proof lamp system based on LoRA communication of claim 8, wherein, A Zener diode is connected in series between the output pin of the pulse chip U10 and the ground electrode.

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