Portable comfort detection device for temperature and humidity in train

A temperature and humidity measurement, temperature and humidity technology, used in thermometers, instruments, thermometers with electrical/magnetic components directly sensitive to heat, etc. And other issues

Inactive Publication Date: 2012-10-03
SOUTHWEST JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Common low-end temperature and humidity test products mostly use mechanical pointer or mercury column temperature and humidity meters, which are light in weight and h

Method used

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  • Portable comfort detection device for temperature and humidity in train
  • Portable comfort detection device for temperature and humidity in train
  • Portable comfort detection device for temperature and humidity in train

Examples

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Embodiment Construction

[0014] figure 1 It is a block diagram of the internal structure of the temperature and humidity tester, including a temperature and humidity measurement module, a single-chip microcomputer control module, a display module, an expansion interface module, a PC RS-232 interface, and a power supply module for supplying power to each module. The power supply is powered by a portable battery, which is converted into a digital power supply through a voltage regulator chip.

[0015] figure 2 It is a microcontroller control circuit. The microcontroller includes a central processing unit, program memory, data memory (RAM), EEPROM, timer / counter, I / O interface, UART interface and interrupt system, SPI interface, high-speed A / D conversion module and hardware watchdog, power supply Monitoring, on-chip RC oscillator and other modules. P1 port is used for bit code display, P2 port is used for data line and segment code display, RXD and TXD are used for serial input data, and transmit XTA...

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PUM

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Abstract

The invention relates to a portable comfort detection device for temperature and humidity in a carriage of a train. The portable comfort detection device for temperature and humidity in the carriage of the train consists of a temperature and humidity measurement module, a singlechip control module, a display module, an extension interface module, an RS232 (recommend standard 232) interface and a power supply module which are connected in sequence. The temperature and humidity measurement module is an integrated temperature and humidity sensor, wherein a humidity sensitive capacitor is used as a humidity detection part and a high-precision platinum resistor PT1000 is used as a temperature sensitive element. The output signal is sent to the singlechip to be processed after being subjected to A/D (analog-to-digital) conversion. The display module adopts an LCD (liquid crystal display) for simultaneously displaying temperature and humidity; a clock chip for displaying time in real time and automatically (starting/stopping) a data storage function at an appointment time is internally provided; the maximum value and the minimum value are measured; the extension interface module can fulfill the functions of multi-path measurement, multi-path display, serial port/parallel port transmission, mode switching and the like; the RS232 interface can communicated with a PC (personal computer) for data transmission and processing; and the power supply module consists of 6 AAA batteries for uninterruptedly supplying power for about 200 hours.

Description

technical field [0001] The invention relates to the field of detection instruments, in particular to a method and device for detecting the comfort of temperature and humidity in a portable train compartment. Background technique [0002] Temperature and humidity control is commonly used in daily life and industrial production, but in the air environment of air-conditioned train carriages, temperature and humidity are one of the main influencing factors. With the development of technology, in order to ensure driving safety and improve ride comfort, current passenger trains generally use airtight air-conditioned compartments. Therefore, it is necessary to monitor and evaluate the environment inside the train, conduct more systematic research on the influence of factors such as temperature and humidity on human comfort, deeply explore the influence of temperature and humidity in the train compartment on people, and continuously improve The air environment makes passengers less...

Claims

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Application Information

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IPC IPC(8): G01W1/17G01N27/22G01K7/18
CPCY02A90/10
Inventor 伍川辉林建辉宁静王康张兵苏燕辰陈春俊
Owner SOUTHWEST JIAOTONG UNIV
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