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Thermostatic control method for heat pump unit under different light intensities
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A heat pump unit and light intensity technology, applied in the field of greenhouses, can solve the problems of different needs without consideration of temperature, high light intensity, unfavorable plant growth, etc., and achieve the effect of suitable target temperature and ensuring healthy growth
Inactive Publication Date: 2018-03-13
GUANGDONG PHNIX ECO ENERGY SOLUTION
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Problems solved by technology
[0009] At present, heat pump units are widely used in agriculture, but most heat pump units only set a fixed target temperature, without considering the different temperature requirements of different plants during the day and night
In addition, high light intensity is not good for plant growth.
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Embodiment 1
[0053] Such as figure 1 As shown, a constant temperature control method of a heat pump unit under different light intensities, the method includes:
[0054] For the detection of light intensity, the photometric sensor module controls the opening and closing state of the photometric sensor module switch by detecting the light intensity of the external environment;
[0055] If the photometric sensor module switch is connected,
[0058] The daytime control mode divides the working mode of the heat pump unit into daytime cooling mode, daytime heating mode and daytime constant temperature shutdown mode according to the satisfied relationship between the indoor ambient temperature Tr and the temperature setting value of the heat pump unit;
[0059] otherwise,
[0060] Adjust the operation mode of the heat pump unit to the night control mode;
[0061] The dark night control mode d...
Embodiment 2
[0086] Such as figure 1 As shown, a constant temperature control method of a heat pump unit under different light intensities, the method includes:
[0087] For the detection of light intensity, the photometric sensor module controls the opening and closing state of the photometric sensor module switch by detecting the light intensity of the external environment;
[0088] If the photometric sensor module switch is connected,
[0089] but,
[0090] Adjust the operation mode of the heat pump unit to the daytime control mode;
[0091] The daytime control mode divides the working mode of the heat pump unit into daytime cooling mode, daytime heating mode and daytime constant temperature shutdown mode according to the satisfied relationship between the indoor ambient temperature Tr and the temperature setting value of the heat pump unit;
[0092] otherwise,
[0093] Adjust the operation mode of the heat pump unit to the night control mode;
[0094] The dark night control mode d...
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Abstract
The invention relates to the technical field of greenhouses in particular to a thermostatic control method for a heat pump unit under different light intensities. The method includes light intensity detection: a light intensity sensing module controls the on / off state of a light intensity sensing module switch by detecting the light intensity of the outside environment; if the light intensity sensing module switch is in the on state, the operation mode of the heat pump unit is adjusted to be a daytimecontrol mode including a daytime cooling mode, a daytime heating mode and a daytime constant-temperature shutdown mode; otherwise, the operation mode of the heat pump unit is adjusted to be a night control mode including a night cooling mode, a night heating mode and a night constant temperature shutdown mode. The method determines a daytime or a night by using the light intensity sensing module, and finely sets the target temperature that needs to be adjusted to ensure appropriate indoortarget temperature, thereby ensuring the healthy growth of plants.
Description
technical field [0001] The invention relates to the technical field of greenhouses, in particular to a constant temperature control method for a heat pump unit under different light intensities. Background technique [0002] With the advancement of science and technology and the improvement of people's living standards, people's demand for protected vegetables, flowers and other crops is also increasing, and protected agriculture has become a significant symbol of modern agricultural development. As the most popular infrastructure in the development and application of modern agriculture, greenhouses are attracting more and more attention. In the case of rapid population growth and decreasing arable land in the world, greenhouses have greatly improved land utilization and crop planting density, alleviating the contradiction between insufficient arable land area and rapid population growth. [0003] In facility agriculture, whether it is a glass solar greenhouse, a simple pla...
Claims
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Application Information
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