Meteorological monitoring data acquisition circuit

Abstract

The utility model belongs to the technical field of data acquisition, and discloses a meteorological monitoring data acquisition circuit, which comprises a processor; the meteorological monitoring module is electrically connected with the processor and used for collecting meteorological monitoring data; the first wireless module is electrically connected with the processor; according to the meteorological monitoring data acquisition circuit provided by the utility model, when water accumulation does not occur, the circuit is in ultra-low power consumption operation, and when water accumulation occurs, the sampling module wakes up the processor, so that the water accumulation does not occur; after waterlogging data collected by the sampling module and meteorological monitoring data such as rainfall, temperature and humidity, wind speed and the like collected by the meteorological monitoring module are packaged, the data are uploaded to a monitoring terminal through the first wireless module, and local display of all the monitoring data is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of data acquisition, and in particular relates to a meteorological monitoring data acquisition circuit. Background Art

[0002] Station flood prevention safety directly affects passenger safety, passenger services and vehicle equipment safety. In order to timely understand the weather conditions outside the station and take precautions against floods at the station, it is necessary to set up a station meteorological monitoring system and set up monitoring points at key locations in flood prevention key stations that are prone to waterlogging and backflow into the station hall.

[0003] Subway stations are a type of train stations. Most of them are located in underground spaces with low terrain, which makes them prone to water accumulation during flood season or when water pipes burst. Some equipment rooms and areas that are not yet used during the construction of new lines are often unmanned, posing safety hazards during the inspection intervals. Utility Model Content

[0004] The utility model aims to solve the above technical problems at least to a certain extent. To this end, the utility model aims to provide a meteorological monitoring data acquisition circuit.

[0005] The technical solution adopted by the utility model is:

[0006] A meteorological monitoring data acquisition circuit, comprising:

[0007] processor;

[0008] A meteorological monitoring module, electrically connected to the processor, for collecting meteorological monitoring data;

[0009] A first wireless module is electrically connected to the processor;

[0010] The sampling module is electrically connected to the processor and the power module respectively. The sampling module is used to wake up the processor when water accumulation is detected. The processor transmits the water accumulation data and meteorological monitoring data to the monitoring terminal through the first wireless module.

[0011] Preferably, the processor is also electrically connected to the second wireless module, the debugging port, the input module, the display module and the indicator light.

[0012] Preferably, the power module includes a photovoltaic panel, an MPPT charging unit, a lithium battery pack, an over-voltage and under-voltage protection unit and a DC / DC conversion unit. The photovoltaic panel is connected to the MPPT charging unit, the lithium battery pack, the over-voltage and under-voltage protection unit and the DC / DC conversion unit in sequence, and the lithium battery pack is electrically connected to the sampling module.

[0013] Preferably, the meteorological monitoring module includes an ultrasonic sensor, a rain and snow sensor and a temperature sensor.

[0014] Preferably, the processor is of model STM32F1, and the first wireless module and the second wireless module are both LoRa modules of model E22-400T30S.

[0015] The beneficial effects of the utility model are:

[0016] The utility model provides a meteorological monitoring data acquisition circuit. When there is no water accumulation, the circuit is in ultra-low power consumption operation. The sampling module wakes up the processor only when water accumulation occurs. The water accumulation data collected by the sampling module is packaged with the meteorological monitoring data such as rainfall, temperature and humidity, and wind speed collected by the meteorological monitoring module. The data is uploaded to the monitoring terminal through the first wireless module to realize local display of all monitoring data. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a schematic diagram of a meteorological monitoring data acquisition circuit.

[0018] Figure 2 It is a circuit diagram of the first wireless module of the utility model.

[0019] Figure 3 The utility model is a circuit diagram of an over-voltage and under-voltage protection unit. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the utility model to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, but not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] It should be understood that it should also be noted that in the embodiment, the functions / actions that appear may be different from the order in which the drawings appear. For example, depending on the functions / actions involved, they can actually be executed substantially concurrently, or two figures shown in succession can sometimes be executed in the reverse order.

[0022] like Figures 1 to 3 As shown, a meteorological monitoring data acquisition circuit of the present embodiment includes a processor, a meteorological monitoring module, a first wireless module and a sampling module. The meteorological monitoring module is electrically connected to the processor for collecting meteorological monitoring data; the first wireless module is electrically connected to the processor; the sampling module is electrically connected to the processor and the power supply module, respectively, and the sampling module is used to wake up the processor when water accumulation is detected, and the processor transmits the water accumulation data and meteorological monitoring data to the monitoring terminal through the first wireless module.

[0023] The processor is also electrically connected to the second wireless module, the debugging port, the input module, the display module and the indicator light. The second wireless module serves as a backup for the first wireless module. The input module includes a dial and a button. The display module is a screen. The indicator light is used to display the working status of the processor. The weather monitoring module includes an ultrasonic sensor, a rain and snow sensor and a temperature sensor.

[0024] The sampling module is used to monitor the water accumulation situation in real time and generate water accumulation data, which includes water accumulation situation and water accumulation depth data. When no water accumulation occurs, the meteorological monitoring data acquisition circuit is in ultra-low power operation, with power consumption less than 0.1W, and can run for more than 3 months. When water accumulation occurs, the sampling module wakes up the processor and quickly transmits the water accumulation data and meteorological monitoring data to the monitoring terminal in the vehicle control room through the first wireless module. The monitoring terminal displays the water accumulation depth data in real time and issues a buzzer alarm to alert staff to immediately conduct on-site inspections and emergency response measures, thereby improving the timeliness of emergency response to water accumulation accidents.

[0025] The power module includes a photovoltaic panel, an MPPT charging unit, a lithium battery pack, an over-voltage and under-voltage protection unit, and a DC / DC conversion unit. The photovoltaic panel is connected to the MPPT charging unit, the lithium battery pack, the over-voltage and under-voltage protection unit, and the DC / DC conversion unit in sequence. The lithium battery pack is electrically connected to the sampling module. The electric energy collected by the photovoltaic panel charges the lithium battery pack through the MPPT charging unit. The DC 12V current of the lithium battery pack is converted into DC 5V and DC 3.3V through the over-voltage and under-voltage protection unit and the DC / DC conversion unit for use by other modules; Figure 3 Shown is the circuit diagram of the over-voltage and under-voltage protection unit.

[0026] In this embodiment, the processor model is STM32F1. The STM32F1 series basic MCU achieves high performance by using excellent peripherals and low power consumption and low voltage operation, and achieves high integration by using simple architecture and easy-to-use tools. This series of MCUs has 16KB to 1MB Flash, multiple control peripherals, USB full-speed interface and CAN.

[0027] The first wireless module and the second wireless module are both LoRa modules with model E22-400T30S. Figure 2 The figure shows the circuit diagram of the LoRa module. The wireless serial port module (UART) of the LoRa module SX1262 RF chip has multiple transmission modes, operates in the 410.125~493.125MHz frequency band, has LoRa spread spectrum technology and TTL level output, and is compatible with 3.3V and 5V IO port voltages. Compared with the traditional SX1278 solution, SX1262 is farther, faster, has lower power consumption, and is smaller in size; it supports air wake-up, wireless configuration, carrier monitoring, automatic relay, communication key and other functions.

[0028] The present utility model is not limited to the above-mentioned optional implementation modes. Anyone can derive other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in the shape or structure, all technical solutions that fall within the scope defined by the claims of the present utility model fall within the protection scope of the present utility model.

Claims

1. A meteorological monitoring data acquisition circuit, characterized in that: include: processor; A meteorological monitoring module, electrically connected to the processor, for collecting meteorological monitoring data; A first wireless module is electrically connected to the processor; The sampling module is electrically connected to the processor and the power module respectively. The sampling module is used to wake up the processor when water accumulation is detected. The processor transmits the water accumulation data and meteorological monitoring data to the monitoring terminal through the first wireless module.

2. The meteorological monitoring data acquisition circuit according to claim 1, characterized in that: The processor is also electrically connected to the second wireless module, the debugging port, the input module, the display module and the indicator light.

3. The meteorological monitoring data acquisition circuit according to claim 1 or 2, characterized in that: The power module includes a photovoltaic panel, an MPPT charging unit, a lithium battery pack, an over-voltage and under-voltage protection unit, and a DC / DC conversion unit. The photovoltaic panel is connected to the MPPT charging unit, the lithium battery pack, the over-voltage and under-voltage protection unit, and the DC / DC conversion unit in sequence, and the lithium battery pack is electrically connected to the sampling module.

4. The meteorological monitoring data acquisition circuit according to claim 1, characterized in that: The weather monitoring module includes an ultrasonic sensor, a rain and snow sensor, and a temperature sensor.

5. The meteorological monitoring data acquisition circuit according to claim 1, characterized in that: The model of the processor is STM32F1, and the first wireless module and the second wireless module are both LoRa modules with a model of E22-400T30S.

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