Hospital environment monitoring system based on Internet of Things

An environmental monitoring system and Internet of Things technology, applied in the field of hospital environmental monitoring system based on the Internet of Things, can solve problems such as ineffective monitoring, signal electromagnetic interference attenuation, signal distortion, etc., and achieve the effect of solving electromagnetic interference

Inactive Publication Date: 2018-10-16
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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 hospital environment monitoring system based on the Internet of Things, which has the characteristics of ingenious conception and humanized design, and effectively solves the problem of interference between electronic equipment or various signals. Electromagnetic interference and attenuation, resulting in signal distortion, can not be effectively monitored

Method used

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  • Hospital environment monitoring system based on Internet of Things
  • Hospital environment monitoring system based on Internet of Things

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Embodiment 1, based on the Internet of Things hospital environment monitoring system, includes a signal receiving circuit, a signal enhancement circuit, and a feedback amplitude modulation circuit, and the signal receiving circuit receives signals in the data transmission channel in the Internet of Things hospital environment monitoring system (this signal includes corresponding sensors) The collected temperature, humidity, bacterial concentration and other hospital environment information, the specific collection process of the sensor is the prior art, which will not be described in detail here), through the inductor L1, capacitor C1, capacitor C2, resistor R1, inductor L2, and capacitor C3. The duplex filter circuit filters out high-frequency interference and low-frequency interference. Inductor L1, capacitor C1, capacitor C2, and resistor R1 form a high-pass filter circuit to remove unnecessary low-frequency components in the signal. Inductor L2 and capacitor C3 form a...

Embodiment 2

[0014] Embodiment 2. On the basis of Embodiment 1, the signal receiving circuit filters out high-frequency interference and low-frequency interference through a duplex filter circuit composed of inductor L1, capacitor C1, capacitor C2, resistor R1, inductor L2, and capacitor C3. Get the desired difference frequency signal 15Hz-100Hz signal, and then enter the double T frequency selection circuit composed of resistors R2~R4 and capacitors C4~C6 to generate a 45Hz low frequency signal resonant with the signal frequency in the data transmission channel and transmit it to the subsequent circuit. Including inductor L2, the left end of inductor L2 and the positive electrode of capacitor C1 are connected to the signal in the data transmission channel of the IoT hospital environment monitoring system, the negative electrode of capacitor C1 is respectively connected to the positive electrode of capacitor C2 and the upper end of inductor L1, and the negative electrode of capacitor C2 is c...

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Abstract

The invention discloses a hospital environment monitoring system based on Internet of Things. A signal receiving circuit receives a signal in a data transmission channel of an Internet of Things hospital environment monitoring system; a 45Hz low-frequency signal resonant with the signal frequency in the data transmission channel is generated through a duplex filter circuit and a double-T frequencyselection circuit and transmitted to a signal intensifier circuit; amplitude adjustment is performed by using an impedance inverter circuit and an in-phase proportional amplifying circuit, and finally the signal is output through a holding circuit. By means of the on-off state of a gate circuit composed of a triode Q1, a resistor R11 and a resistor R13 and a diode D1 as well as a subtractor AR1,a feedback amplitude modulation circuit couples a difference signal to the input end of an operational amplifier AR2 through a resistor R6 or connects a resistor R5 and a resistor R6 in series in parallel to the equivalent resistance value, so that the linear stable signal amplitude can be transmitted to a terminal server of the monitoring system more effectively after gain amplification. The system solves the problems of signal distortion and incapability of conducting effective monitoring caused by the interference of an electronic device or electromagnetic interference between the numeroussignals and attenuation.

Description

technical field [0001] The invention relates to the technical field of hospital environment monitoring, in particular to a hospital environment monitoring system based on the Internet of Things. Background technique [0002] China is a country with a large population and limited high-quality medical resources, which leads to overcrowding of large hospitals in central cities and brings great challenges to the internal management of hospitals. Due to the specific functions of hospitals and the requirements for physical rehabilitation of patients, the internal requirements of hospitals for environment, flow of people, Important ward control, special medical area monitoring, and anti-theft have strict requirements. At present, the hospital environment monitoring system based on the Internet of Things technology, through data collection (collected by various sensors, such as temperature and humidity sensors to collect hospital environment temperature and humidity information) , b...

Claims

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Application Information

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IPC IPC(8): G05F1/625H04L29/08
CPCG05F1/625H04L67/12
Inventor 许少辉
Owner JILIN UNIV
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