VCO-based ventilation control system for chemical storage cabinet
A ventilation control system and chemical technology, applied in the direction of comprehensive factory control, chemical instruments and methods, cabinets, etc., can solve the problems of low frequency stability, wide frequency modulation range, mistaking and misplacing, etc., to achieve sufficient space and reduce energy consumption the wasteful effect of
Active Publication Date: 2021-06-22
深圳市博盛科电子有限公司
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Problems solved by technology
The frequency stability of the crystal voltage-controlled oscillator is high, but the frequency modulation range is narrow; the frequency stability of the RC voltage-controlled oscillator is low and the frequency modulation range is wide, and the LC voltage-controlled oscillator is in between
[0003] Most of the existing laboratory ventilation for storing chemicals adopts a unified ventilation method, and there is no setting for different ventilation for different chemicals, and the design of chemical storage cabinets is not specially made according to the amount of chemicals and the needs of the laboratory. Leads to uncertainty in chemical storage and frequent mishandling
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[0050] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0051] Such as figure 1 As shown, a VCO-based ventilation control system for chemical storage cabinets, including data acquisition modules, storage management modules, controllers, processors, frequency converters, ventilation devices, data storage modules and chemical storage cabinets;
[0052] The chemical storage cabinet is used to store the chemicals used in the laboratory, and the storage management module is used to manage the chemicals stored in the chemical storage cabinet. Specifically, the storage management ...
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The invention discloses a VCO-based ventilation control system for a chemical storage cabinet, belongs to the field of ventilation control, and relates to a voltage-controlled oscillator technology. The VCO-based ventilation control system is provided with a data acquisition module, a storage management module, a controller, a processor, a frequency converter, a ventilation device, a data storage module and a chemical storage cabinet; the storage management module is used for managing chemicals stored in the chemical storage cabinet, reasonably partitioning the chemical storage cabinet, realizing placement of different types of chemicals in specific places, strictly controlling the volumes of different compartments according to the sizes of chemical reagent bottles, and realizing classified placement of the chemicals with enough space. When chemicals are stored in the chemical storage cabinet, the controller sends a concentration acquisition signal to the data acquisition module, and gas concentrations Nsi of the different compartments are obtained respectively; the controller controls the input voltage of the frequency converter and further controls the ventilation device to conduct intelligent ventilation.
Description
technical field [0001] The invention belongs to the field of ventilation control and relates to a voltage-controlled oscillator technology, in particular to a VCO-based ventilation control system for chemical storage cabinets. Background technique [0002] VCO generally refers to a voltage-controlled oscillator. A voltage-controlled oscillator refers to an oscillating circuit (VCO) whose output frequency corresponds to the input control voltage. The frequency is an oscillator VCO that is a function of the input signal voltage. The working state of the oscillator or the oscillation circuit The component parameters are controlled by the input control voltage, and a voltage-controlled oscillator can be formed. The types of voltage-controlled oscillators are LC voltage-controlled oscillators, RC voltage-controlled oscillators and crystal voltage-controlled oscillators. The technical requirements for voltage-controlled oscillators mainly include: good frequency stability, high c...
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IPC IPC(8): A47B81/00B08B15/02
CPCA47B81/00B08B15/023A47B2220/0091A47B2220/0097A47B2220/0061Y02P90/02
Inventor 谭业陈仲才
Owner 深圳市博盛科电子有限公司