Dam osmotic pressure monitoring device

Abstract

The utility model discloses a dam osmotic pressure monitoring device which comprises a solar module, a battery, an excitation sending module, a main control module, an L0RA module, a response receiving module, a real-time clock module and a storage module. The solar module is electrically connected with the battery, the battery is electrically connected with the main control module, the main control module is electrically connected with the excitation sending module, the response receiving module, the vibrating wire sensor, the real-time clock module, the storage module and the LoRa module, and the LoRa module is in wireless communication with the concentrator. According to the dam osmotic pressure monitoring device, detected data are collected in a LoRa wireless transmission mode, and the construction and installation convenience of the dam osmotic pressure monitoring device is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of water conservancy and hydrology, and particularly relates to a dam seepage pressure monitoring device. Background Art

[0002] In a reservoir's dam safety monitoring system, there are numerous seepage pressure monitoring points that need to be networked. Traditionally, buried optical fiber networking is used to connect the piezometers at each monitoring point. These are then connected to a collector for centralized data reading, with monitoring signals transmitted to a database and platform applications. Laying optical fiber cables requires excavating cable trenches, damaging existing dams and embankments, consuming significant manpower and materials, and taking up a relatively long construction period. Utility Model Content

[0003] The purpose of the utility model is to provide a dam seepage pressure monitoring device to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a dam seepage pressure monitoring device, comprising a solar module, a battery, an excitation sending module, a main control module, a L0RA module, a response receiving module, a real-time clock module, and a storage module; the solar module is electrically connected to the battery, the battery is electrically connected to the main control module, the main control module is electrically connected to the excitation sending module, the response receiving module, the vibrating string sensor, the real-time clock module, the storage module, and the LoRa module, and the LoRa module is in wireless communication with the concentrator.

[0005] Preferably, the main control module is a control chip with an ADC module, a CCP module, an external interrupt module and a sleep module.

[0006] Preferably, the main control module is electrically connected to the storage module.

[0007] The technical effects and advantages of the utility model are as follows: the dam seepage pressure monitoring device adopts the LoRa wireless transmission method to collect detection data, which improves the convenience of construction and installation of the dam seepage pressure monitoring device. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is a hardware block diagram of the utility model;

[0009] Figure 2 This is the circuit diagram of the main control module of the utility model;

[0010] Figure 3 This is the circuit diagram of the L0RA module of the present utility model;

[0011] Figure 4 This is the circuit diagram of the excitation sending module of the utility model;

[0012] Figure 5 This is the circuit diagram of the preamplifier circuit of the utility model;

[0013] Figure 6 This is a circuit diagram of a bandpass filter circuit of the utility model;

[0014] Figure 7 This is the circuit diagram of the intermediate amplifier circuit of the utility model;

[0015] Figure 8 This is the circuit diagram of the full-scale amplifier circuit of the utility model;

[0016] Figure 9 This is the circuit diagram of the Schmidt shaping circuit of the utility model;

[0017] Figure 10 This is the circuit diagram of the optocoupler isolation circuit of the utility model;

[0018] Figure 11 This is the circuit diagram of the solar module of the present utility model;

[0019] Figure 12 This is the battery charge and discharge protection circuit diagram of the utility model;

[0020] Figure 13 This is the circuit diagram of the real-time clock module of the utility model;

[0021] Figure 14 This is a circuit diagram of the storage module of the present utility model.

[0022] In the figure: 1. Solar module; 2. Battery; 3. Excitation transmission module; 4. Main control module; 5. LoRa module; 6. Concentrator; 7. Vibrating string sensor; 8. Storage module; 9. Response receiving module; 10. Real-time clock module. DETAILED DESCRIPTION

[0023] The following further describes specific embodiments of the present invention in conjunction with the accompanying drawings. It should be noted that the descriptions of these embodiments are intended to aid understanding of the present invention and do not constitute limitations on the present invention. Furthermore, the technical features involved in the various embodiments of the present invention described below may be combined with one another as long as they do not conflict with one another.

[0024] like Figure 1 The figure shows the hardware block diagram of the dam seepage pressure monitoring device provided by the present invention. As can be seen from the figure, the dam seepage pressure monitoring device includes: a solar module 1 (such as Figure 11), battery 2, excitation sending module 3, main control module 4, LoRa module 5, concentrator 6, vibrating string sensor 7, storage module 8, response receiving module 9, real-time clock module 10, wherein the solar module 1 is electrically connected to the battery 2, the battery 2 is electrically connected to the main control module 4, the main control module 4 is electrically connected to the excitation sending module 3, the response receiving module 9, the real-time clock module 10, the storage module 8 and the LoRa module 5, and the LoRa module 5 communicates wirelessly with the concentrator.

[0025] In a specific embodiment, the excitation sending module 3 and the response receiving module 9 are connected to the vibrating string sensor 7 , and the LoRa module 5 communicates with the concentrator 6 .

[0026] The main control module 4 is a control chip with an ADC module, a CCP module, an external interrupt module, and a sleep module. The main control module 4 realizes data interaction with the concentrator 6 through the L0RA module 5; the wireless transmission method effectively solves the problem of digging cable trenches when deploying existing monitoring devices; specifically, the main control module 4 is as follows Figure 2 , L0RA module 5 as Figure 3 , pins 1, 2, 3, 4, and 5 of the L0RA module 5 are connected to pins 11, 12, 17, 18, and 26 of the main control module 4 respectively.

[0027] The main control module 4 controls the excitation sending module 3 to send an excitation signal to the vibrating string sensor 7, and reads the response signal of the vibrating string sensor 7 processed by the response receiving module 9; the excitation sending module 3 is as follows Figure 4 , the 2nd pin of the excitation sending module 3 is connected to the 4th pin of the main control module 4; the preamplifier circuit, the bandpass filter circuit, the intermediate amplifier circuit, the full-scale amplifier circuit, the Schmidt shaping circuit, and the optical coupler isolation circuit together constitute the response receiving module 9, as shown Figure 5-10 The specific connection is that the preamplifier circuit, bandpass filter circuit, intermediate amplifier circuit, full-scale amplifier circuit, Schmidt shaping circuit, and optocoupler isolation circuit are connected in sequence, and the CCP end of the optocoupler isolation circuit is connected to pin 13 of the main control module 4, and the CH+ end of the preamplifier circuit is connected to the CH+ end of the excitation sending module 3.

[0028] like Figure 13 The real-time clock module 10, 1, 2, 16 pins are connected to the 14, 15, 25 pins of the main control module 4 respectively, which can provide a calendar alarm and realize the timing monitoring function.

[0029] like Figure 14 The storage module 8, 5, 6, 7 pins are connected to the 15, 14, 3 pins of the main control module 4 respectively, which can store the monitored data and some system setting data.

[0030] The solar module 1 and the battery 2 realize the functions of obtaining and storing electric energy.

[0031] When no detection instructions are executed, the entire monitoring device can enter a sleep mode to save energy.

[0032] During use, the dam seepage pressure monitoring device measures the seepage pressure through the vibrating string sensor 7, is controlled by the main control module 4, and uses the L0RA module 5 to send the measurement data to the concentrator, which then sends the received data to the monitoring center.

[0033] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A dam seepage pressure monitoring device, characterized in that: It includes a solar module, a battery, an excitation sending module, a main control module, a L0RA module, a response receiving module, a real-time clock module, a storage module and a concentrator; the solar module is electrically connected to the battery, the battery is electrically connected to the main control module, the main control module is electrically connected to the excitation sending module, the response receiving module, the vibrating string sensor, the real-time clock module and the LoRa module, and the LoRa module is in wireless communication with the concentrator.

2. A dam seepage pressure monitoring device according to claim 1, characterized in that: The main control module is a control chip with an ADC module, a CCP module, an external interrupt module and a sleep module.

3. A dam seepage pressure monitoring device according to claim 1, characterized in that: The main control module is electrically connected to the storage module.

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