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Radio acceleration strain temperature data collecting system based on solar energy

A data acquisition system, strain temperature technology, applied in the direction of measurement of acceleration, multi-dimensional acceleration measurement, velocity/acceleration/shock measurement, etc.

Inactive Publication Date: 2011-06-15
哈尔滨泰达尔科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing products do not completely solve the problems of wireless sensors in various data collection, energy supply, receiving data, processing data and long-term stable work.

Method used

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  • Radio acceleration strain temperature data collecting system based on solar energy
  • Radio acceleration strain temperature data collecting system based on solar energy
  • Radio acceleration strain temperature data collecting system based on solar energy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Example 1: Combining figure 1 , figure 2 , The solar energy-based wireless acceleration, strain, temperature data acquisition system of the present invention is composed of sensor nodes (1) and base stations (2), and the sensor nodes (1) are wirelessly connected to the base station (2).

[0025] The present invention also has the following technical characteristics:

[0026] The sensor node (1) includes a power supply module (3), a strain sensor (4), a strain signal amplification circuit (5), an analog / digital converter (6), a node microprocessor (7), a node wireless module ( 8), acceleration sensor (9) and temperature sensor (10), power supply module (3) connects respectively strain sensor (4), strain signal amplifying circuit (5), analog / digital converter (6), node microprocessor ( 7), the node wireless module (8), the acceleration sensor (9) and the temperature sensor (10), the strain sensor (4) is connected to the strain signal amplification circuit (5), and the ...

Embodiment 2

[0029] Example 2: Combining figure 1 -- Figure 11 , the node in the present invention is a PCB board, which is divided into two areas of analog and digital, and the middle passes through the capacitance inductance ( Image 6 Middle L1, L2, C3, C4) isolated power supply. Off-the-shelf products for node analog-to-digital conversion (ADC) require 16 bits, high precision, low power consumption, and update frequency above 200Hz. Use ADI's AD7795, and its reference source and acceleration sensor power supply use a voltage reference chip MAX6033 -30( Figure 7 U5 in), output 3V voltage. The ADC is connected to the microprocessor through the SPI bus, receives the configuration information of the microprocessor, and outputs the converted data. You can choose the working mode, conversion frequency, reference source, conversion channel, etc. of the ADC. There are 4 ADCs ( Figure 7 U1, U2, U4, and U7) are the acquisition ADCs of strain, acceleration X axis, acceleration Y axis, an...

Embodiment 3

[0033] Example 3: Binding Figure 1-Figure 11 , the present invention includes two parts of the sensor node and the base station, the general idea is as follows figure 1 shown. That is, the acceleration and strain analog signals are sampled by the ADC to obtain digital signals, and the digital signals directly obtained by the temperature sensor are jointly transmitted to the node processor. The node microprocessor transmits the data to the base station processor through the wireless module, and then transmits the data to the computer through the serial port (RS232), and the data is controlled and processed by the software. The whole node (including node microprocessor, acceleration, strain sensor, wireless module) is powered by the power module.

[0034] The schematic diagram of the power module is as figure 2 shown. It is composed of a solar battery maximum power point control circuit, a lithium-ion battery and a charging and discharging circuit, a voltage stabilizing ou...

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Abstract

The invention provides a radio acceleration strain temperature data collecting system based on solar energy for realizing the collection of acceleration, temperature and strain data, the autonomous power supply of nodes through a solar battery and a lithium ion battery, data radio transmission and multi-mode with one station. The system consists of a sensor node and a station, and the sensor nodeis connected with the station by radio. A power source module is respectively connected with a strain sensor, a strain signal amplifying circuit, an analog-to-digital converter, a node microprocessor, a node radio module, an acceleration sensor and a temperature sensor; the station power source is respectively connected with a station radio module, a station microprocessor, a station serial port communication module and a PC control processing terminal. The invention provides a control and data processing program of a computer terminal with simple operation so as to realize real-time data storage. The node can supply power autonomously for a long time in the sun with stable operation, and continuously collect data and transmit the data to the computer terminal in real time.

Description

(1) Technical field [0001] The invention relates to civil engineering technology, in particular to a wireless acceleration, strain, temperature data acquisition system based on solar energy. (2) Background technology [0002] With the rapid development of the world economy, remarkable achievements have been made in the field of civil engineering, and various large and complex structures continue to appear. Today's civil engineering structures are developing in the direction of oversized and complex, such as large bridges, super high-rise buildings, huge stadiums and theaters, large dams, nuclear power plants and offshore structures. However, the service life of such major engineering structures is as long as decades or even hundreds of years. Under the joint action of disaster factors such as environmental erosion, material aging, long-term effects of loads, and fatigue effects, it will inevitably lead to the accumulation of damage to the structural system. And resistance a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01P15/00G01P15/18G01B7/16G01K7/00H02N6/00G08C17/02H02S40/38
CPCY02E10/50Y02E70/30
Inventor 李惠鲍跃全王国乐
Owner 哈尔滨泰达尔科技有限公司
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