Multifunctional ultrasonic ranging data acquisition system and method thereof

A data acquisition system, ultrasonic technology, applied in the direction of radio wave measurement system, sound wave reradiation, measurement device, etc., can solve the problems of unable to collect temperature sensor signal data, increase the complexity of data acquisition system, and inaccurate measurement results, etc. Achieve detection accuracy guarantee, reduce interference, simple and compact system structure

Inactive Publication Date: 2012-12-12
HUNAN UNIV
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Problems solved by technology

At present, there are analog signal acquisition systems that use various buses for data transmission and ultrasonic ranging systems that use serial ports for data transmission. However, the existing data acquisition systems cannot detect ultrasonic ranging sensors, temperature sensors, pressure Simultaneous data acquisition of sensor and position switch signals
The existing d

Method used

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  • Multifunctional ultrasonic ranging data acquisition system and method thereof
  • Multifunctional ultrasonic ranging data acquisition system and method thereof
  • Multifunctional ultrasonic ranging data acquisition system and method thereof

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[0029] The present invention will be further described below in conjunction with the accompanying drawings:

[0030] like figure 1 Shown is the hardware structure diagram of the present invention. The multifunctional ultrasonic ranging data acquisition system includes a voltage or current signal acquisition module, an ultrasonic acquisition module, a digital signal input module, a digital signal output module, a processor, a dual-port RAM, and an address decoding module. circuit and PC104 bus.

[0031] like figure 2 Shown is the bus interface circuit diagram of the present invention, the processor is connected with the PC / 104 bus through the dual-port RAM, and communicates data with the outside world.

[0032] like image 3 Shown is the connection diagram between the processor and the ultrasonic detection module. The processor and the decoding chip 74LS138 are connected with the analog switch; An analog switch is sent to the ultrasonic detection circuit for detection.

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Abstract

The invention discloses a multifunctional ultrasonic ranging data acquisition system and a method thereof. The multifunctional ultrasonic ranging data acquisition system comprises a microprocessor, an RAM (random access memory) and an analog signal acquisition module, wherein the RAM and the analog signal acquisition module are connected with the microprocessor, an ultrasonic wave acquisition module of the analog signal acquisition module comprises a decoder, a transmitting access analog switch, a receiving access analog switch, ultrasonic wave transmitting circuits, ultrasonic wave receiving circuits and ultrasonic wave detecting circuits. The method includes that on the basis of a PC (personal computer)/104 bus, data acquisition of ultrasonic wave sensors, a temperature sensor, a pressure sensor and a plurality of other sensors about position switch signals and the like are integrated, and the data of all sensors can be acquired at the same time. The analog switches are selectively switched on by the decoder so that transmitting and receiving of the ultrasonic waves are controlled. A transmitted sound wave signal is effectively separated from a received sound wave signal, so that interference of the transmitted ultrasonic wave to reception detection is reduced, detection accuracy is improved, and the multifunctional ultrasonic ranging data acquisition system is simple and compact in structure and strong in reliability and practicality.

Description

technical field [0001] The invention relates to a multifunctional ultrasonic ranging data acquisition system and method. Background technique [0002] Smart mobile devices such as intelligent mobile robots and service robots are widely used in daily life, engineering operations, and military affairs. They need to collect their own states, such as displacement, pressure, temperature, etc., when performing target operations in unknown and complex environments. ; At the same time, it also needs to have a strong perception ability for obstacle information. A variety of sensors are installed on the intelligent mobile robot, such as ultrasonic sensors, temperature sensors, contact switches, etc. These sensors constitute the environment and state perception system of the robot. In order to collect sensor data in the perception system, the robot needs to use a data collection and transmission system to collect sensor data in real time and transmit the results to the decision-making...

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Application Information

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IPC IPC(8): G01S15/08
Inventor 王耀南肖赞陈友辉刘理
Owner HUNAN UNIV
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