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Monitoring device for real-time feedback of body indexes of special operation personnel

A technology for workers and physical indicators, applied in medical science, sensors, diagnostic recording/measurement, etc., can solve the problems of inaccurate monitoring server signals and signal attenuation of monitoring servers, and achieve the effect of improving accuracy and stability

Active Publication Date: 2019-03-26
河南鑫安利职业健康科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the present invention is to provide a monitoring device for real-time feedback of the physical indicators of special operators, which effectively solves the problem of being transmitted to the monitoring server due to the influence of the working environment and the network transmission channel. The signal will be attenuated, resulting in the problem that the signal received by the monitoring server is not accurate enough

Method used

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  • Monitoring device for real-time feedback of body indexes of special operation personnel
  • Monitoring device for real-time feedback of body indexes of special operation personnel
  • Monitoring device for real-time feedback of body indexes of special operation personnel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Embodiment 1, a monitoring device for real-time feedback of physical indicators of special operators, including a primary amplitude modulation circuit, a secondary amplitude modulation circuit, and a stable amplitude output circuit, the primary amplitude modulation circuit receiving network (such as digital wireless data transmission station transmission 220-240MHz) signal transmission channel transmits the weak physical index signal of special workers detected by the portable vital signs detector, through the high-pass filter circuit composed of capacitor C1, capacitor C2, and inductor L1 in series with inductor L2, inductor L3, and capacitor CP2 The band-pass filter formed by the composed low-pass filter circuit filters out inter-frequency interference, only allows the frequency component of the 220-240MHz frequency signal to pass through, and prevents other frequency components from passing through, and at the same time, the inductor L2, inductor L3, capacitor CP1, and...

Embodiment 2

[0015] Embodiment 2, on the basis of Embodiment 1, the two-stage amplitude modulation circuit uses a double-T frequency selection network to transmit the selected network frequency signal (such as 220-240MHz transmitted by a digital wireless data transmission station) with large impedance and other frequencies The characteristic of small signal impedance is used as the feedback resistance of the operational amplifier AR2 to amplify and modulate the signal. When the signal is too large or negative after the second level of amplitude modulation, the voltage regulator tubes Z1 and Z2 in series will break down, and after the electrolytic capacitor E1 is reversed Add it to the gate of MOS transistor T1, thereby changing the resistance between the drain and source of MOS transistor T1, adjusting the feedback depth of the double-T frequency selection network, and then adjusting the amplitude of the signal amplification by the operational amplifier AR2, and the output meets the standard...

Embodiment 3

[0017] Embodiment 3, on the basis of Embodiment 2, the first-level amplitude modulation circuit receives the weak special The body index signal of the worker is filtered by the high-pass filter circuit composed of capacitor C1, capacitor C2, and inductor L1. The band-pass filter composed of the low-pass filter circuit composed of inductor L2, inductor L3, and capacitor CP2 filters out different frequency interference, and only 220 The frequency component of the -240MHz frequency signal passes through and prevents other frequency components from passing through. At the same time, the inductor L2, the inductor L3, the capacitor CP1, and the capacitor CP2 form a resistance

[0018] The anti-matching circuit is matched with the internal resistance of the weak special worker's physical index signal and added to the base of the triode Q1 without loss, and the triode Q1 forms an oscillator together with the inductor L4-inductor L6, capacitor C3, capacitor C5, and varactor diode DC1 G...

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Abstract

The invention discloses a monitoring device for real-time feedback of the body indexes of special operation personnel. A first-stage amplitude modulation circuit receives weak body index signals of special operation personnel transmitted by a network signal transmission channel, and by means of an oscillator with triode Q1 as the core, the received weak signal positive feedback is subjected to primary amplitude amplification, wherein peak detection circuit feedback is applied to ensure the signal subjected to primary amplification meets the requirements of a post-stage circuit amplitude, and then the signal enters a second-stage amplitude modulation circuit, a double-T frequency selection network is employed as the feedback resistance of an operational amplifier AR2 for amplified amplitudemodulation of the signal, the feedback depth is adjusted by an MOS transistor T1, and the signal meeting the requirement of a body index monitoring server for a signal amplitude ranging from 0V to +5V is output, finally the signal enter an amplitude stabilized output circuit, through voltage stabilization by a feedback voltage stabilizing circuit and filtering by LC, an impedance matching circuitand a transmission line connected to the monitoring server achieve impedance matching, and the signal is transmitted to the monitoring server without attenuation. The monitoring device effectively solves the problem of imprecision of signal received by the monitoring server.

Description

technical field [0001] The invention relates to the technical fields of special operations and signal processing, in particular to a monitoring device for real-time feedback of physical indicators of special operators. Background technique [0002] Special operators refer to employees who are directly engaged in special types of operations in special environments, and also refer to operations that are prone to accidents and may cause major hazards to the safety and health of the operator and others, as well as the safety of equipment and facilities, such as high and low voltage power lines. In order to protect the life safety of special operators in work, coal mine underground operations, fire-fighting operations, etc., it is necessary to detect the physical indicators of special operators in real time. At present, portable vital sign detectors are mainly used to detect the four basic indicators of vital signs, ECG, Blood oxygen, pulse rhythm and blood pressure are detected ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/00
CPCA61B5/7203A61B5/7225A61B5/725A61B2503/20A61B2560/0431
Inventor 王艳娇王阿明毛春丽叶郁芬张雨王娟娟张海赵夏冰马会涛
Owner 河南鑫安利职业健康科技有限公司
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