Reservoir water temperature acquisition and alarm device based on LoRa technology

Abstract

The utility model belongs to the field of alarm equipment, and particularly relates to a reservoir water temperature acquisition alarm device based on LoRa technology, which comprises a water pipe and an acquisition alarm box body at a pipe orifice, the upper part of the water pipe is provided with an acquisition alarm box, and the acquisition alarm box is internally provided with a main control board, a battery pack, an acousto-optic signal early warning module and a LoRa antenna module. A water temperature sensor is arranged on the lower portion of the water pipe. According to the utility model, the edge-computing-based redundancy technology is adopted, remote data link and alarm processing and acquisition control can be realized, the LoRa wireless technology and the photovoltaic cell power supply technology are adopted, so that the equipment can be effectively prevented from being damaged by lightning stroke in a lightning area, and the edge-computing-based redundancy technology is based on low-power-consumption elements, so that the reliability of the equipment is improved. The system has the characteristics of high transmission speed and safe and reliable operation, and can send alarm information to a reservoir operation management department in time to remind operators on duty to pay attention if the reservoir water level is abnormal. The device has the characteristics of low installation cost, simplicity and convenience in installation, high operation reliability and the like.

Description

Technical Field

[0001] The utility model belongs to the field of alarm equipment, and in particular relates to a reservoir water temperature collection and alarm device based on LoRa technology. Background Art

[0002] The multi-point elevation water temperature collection and alarm device previously used wired collection and control. Since the reservoir is located in an area with frequent lightning, the equipment was often destroyed and damaged by lightning. Utility Model Content

[0003] In view of the above problems, the utility model provides a reservoir water temperature collection and alarm device based on LoRa technology.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is that the utility model provides a reservoir water temperature collection and alarm device based on LoRa technology, including a water pipe and a collection and alarm box at the pipe mouth, a collection and alarm box is arranged on the upper part of the water pipe, and a main control board, a battery pack, an sound and light signal warning module and a LoRa antenna module are arranged in the collection and alarm box, and a water temperature sensor is arranged at the lower part of the water pipe.

[0005] Preferably, the battery pack is electrically connected to the main control board, and the battery pack includes a storage battery and a photovoltaic cell.

[0006] Preferably, the water pipe is a PVC pipe.

[0007] Preferably, the number of the water temperature sensors is two to six, located at a water depth of 200 mm below the water surface and placed evenly.

[0008] Compared with the prior art, the advantages and positive effects of the utility model are:

[0009] 1. This utility model uses edge computing redundancy technology to collect and control outdoor data, which can effectively avoid damage to equipment caused by lightning strikes in minefields. Edge computing redundancy technology is based on low-power components, has the characteristics of fast transmission speed, safe and reliable operation, and can send alarm information to the reservoir operation management department in time if the reservoir temperature and water level are abnormal, calling the attention of the on-duty personnel. The device has the characteristics of low installation cost, simple and convenient installation, and high operational reliability;

[0010] 2. The utility model adopts an edge computing-based device to collect multi-elevation data based on edge computing redundant technology, and realizes unmanned control management of the reservoir. It can automatically collect water level signals at different elevations of the reservoir and reservoir water temperature signals at different elevations, which can effectively avoid lightning damage to equipment in minefields. Edge computing redundant technology is based on low-power components, has fast transmission speed, is safe and reliable, and is easy to install and debug. At the same time, the device consumes little power during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor.

[0012] Figure 1 A schematic diagram of the structure of a reservoir water temperature collection and alarm device based on LoRa technology provided in Example 1;

[0013] Figure 2 A layout diagram of the main control board provided in Example 1;

[0014] In the above figures, 1. Water pipe; 2. Data collection alarm box; 3. LoRa antenna module; 4. Water temperature sensor. DETAILED DESCRIPTION

[0015] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0016] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0017] Embodiment 1, as Figure 1-Figure 2 As shown,

[0018] The utility model provides a reservoir water temperature collection and alarm device based on LoRa technology, comprising a water pipe, a collection and alarm box is arranged on the upper part of the water pipe, a main control board, a battery pack, an acoustic and optical signal early warning module and a LoRa antenna module are arranged in the collection and alarm box, and a water temperature sensor is arranged at the bottom of the water pipe.

[0019] The battery pack is electrically connected to the main control board, and the battery pack includes a storage battery and a photovoltaic cell.

[0020] The water pipes are made of PVC.

[0021] The number of water temperature sensors is two to six, located at a depth of 200 mm below the water surface and evenly spaced.

[0022] The utility model adopts dual-core processing unit technology. When one of the core processing units freezes or fails, the other core processing unit automatically starts to operate, so as to reliably collect external signals such as water level and water temperature at different elevations of the reservoir, so as to more reliably ensure the safe operation of the reservoir. The network is 4G (or 5G) and fiber optic network redundant backup, and no on-duty personnel are required on site. At the same time, surge and isolation processing modules and wireless collection technologies such as LoRa are used for the RS485 remote collection external end to avoid the intrusion of lightning. The LoRa module adopts the E32-433T37S module, and its data transmission distance can reach 25km, ensuring the safe and reliable performance of data communication within the range, so that the equipment can operate more safely, reliably and stably. Due to the low power consumption based on edge computing technology, it can automatically upload early warning information and send an alarm signal to the host computer according to the preset value to inform the on-duty personnel to deal with it in time, thereby strengthening the safe and reliable operation of the reservoir. Due to the use of wireless data transmission technology, it effectively avoids the invasion and destruction of lightning, ensures the normal operation of the control equipment and units, and ensures the collection of reservoir signals such as water level signal collection and temperature signal collection at different elevations, thereby ensuring the safe operation of the reservoir. The present invention can be applied to large, medium and small reservoir projects, and monitor the changes in reservoir water temperature and water level in real time through water temperature and water level sensors, and generate water temperature and water level monitoring data and reports. The spatiotemporal distribution characteristics of reservoir water body heat expressed by reservoir temperature and the change of reservoir water temperature have an impact on water quality and the reservoir area and downstream environment. At present, there are 98,112 large, medium and small reservoirs in the country, most of which have not been built, which shows that there is a certain market space.

[0023] A reservoir water temperature collection and alarm device based on LoRa technology uses wireless LoRa technology to collect water level and water temperature, which can effectively avoid damage to equipment caused by lightning strikes in minefields. The edge computing redundancy technology used is based on low-power components, with fast transmission speed, safe and reliable performance. The edge computing redundancy technology uses dual ARMCortexA724*1.5G core processing units. When one of the core processing units freezes or fails, the other core processing unit is automatically put into operation, thereby reliably collecting external signals such as the front pool water level and the water inlet water level, and reliably controlling the external water inlet gate valve. In the event of a unit accident, the generator outlet circuit breaker can be reliably disconnected, and the excitation and water inlet guide vanes can be reliably closed to more reliably ensure the safe operation of the reservoir. The L1 data conversion backup buffer of the processing control unit is up to 1MB, and a 4M L2 shared cache is configured. It also integrates up to 512MB flash memory and 8GB eMMC Flash storage unit. The power module is connected to the power end of the processing control unit. At the same time, the surge and isolation processing module and LoRa and other wireless acquisition technologies are used for the RS485 remote acquisition external end to avoid the invasion of lightning. The Lora module uses the E32-433T37S module, and its data transmission distance can reach 25km. E32-433T37S is a new generation of LoRa wireless module, a wireless serial port module based on the SX1278 RF chip, with multiple transmission modes, working in the (410~441MHz) frequency band (default 433MHz), LoRa spread spectrum technology, and TTL level output.E32-433T37S adopts the new generation of LoRa spread spectrum technology, which is faster, has lower power consumption and smaller size than other traditional solutions; it supports air wake-up, wireless configuration and other functions to ensure the safety and reliability of data communication within the range. The communication unit is connected to the communication end of the processing control unit, and has TCP / IP Ethernet interface, RS-485 interface and RS232 interface respectively; the communication unit module is connected to RJ45, and the network is 4G and fiber optic network (WLAN port) redundant backup, and its data connection port is connected to the communication port of the processing control unit; the communication unit module is connected to the processing control unit, and can collect and process the signals involved in TCP / IP Ethernet, and can collect and process the signals involved in RS-485. The communication unit module is connected to the processing control unit, and can collect and process the signals involved in RS-232; status The display module is connected to the I / O port of the edge processing control unit to display the operating status of the reservoir unit; the TCP / IP Ethernet port can output signals; the analog input module is connected to the analog input port on the processing control unit; the switch output module is connected to the I / O port on the processing control unit; various control signals are output, such as sound, light and alarm signals; the device interface parameters can be configured and processed through the USB port, and the battery is used to maintain data in the power outage state, so as to query the cause of the power outage and the cause of various faults. At the same time, this device supports multiple cloud protocols such as MQTT, Modbus / TCP, hydrological protocol, water resources protocol, etc., and also supports RS232 / rs485 Modbus / RTU protocol and custom protocol on the front end. This device has the characteristics of low installation cost, simple and convenient installation, and high operation reliability.

[0024] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A reservoir water temperature collection and alarm device based on LoRa technology, including a water pipe and a collection and alarm box at the pipe mouth, characterized in that: A data collection alarm box is arranged on the upper part of the water pipe, in which a main control board, a battery pack, an acoustic and optical signal early warning module and a LoRa antenna module are arranged, and a water temperature sensor is arranged on the lower part of the water pipe.

2. According to a reservoir water temperature collection and alarm device based on LoRa technology according to claim 1, it is characterized in that: The battery pack is electrically connected to the main control board, and the battery pack includes a storage battery and a photovoltaic cell.

3. The reservoir water temperature collection and alarm device based on LoRa technology according to claim 1 is characterized in that: The water pipe is made of PVC pipe.

4. The reservoir water temperature collection and alarm device based on LoRa technology according to claim 1 is characterized in that: The number of the water temperature sensors is two to six, which are located at a water depth of 200 mm below the water surface and are evenly spaced.

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