Cable trench ventilation device, method and equipment based on solar power supply

Abstract

The invention discloses a cable trench ventilation device, method and equipment based on solar power supply, and belongs to the technical field of electric power facilities. The device comprises a temperature acquisition module which is used for acquiring internal temperature data of a cable trench and surface temperature data at a cable trench cover plate; the power determination module is used for determining the operation power of the ventilation device according to the internal temperature data and the surface temperature data under the condition that the internal temperature data is higher than the surface temperature data and is higher than a preset temperature threshold value; the power supply control module is used for controlling the solar power supply device to provide electric energy for the ventilation device according to the operation power. According to the technical scheme, the operation power of the ventilation device is determined according to the internal temperature data and the ground surface temperature data, the solar power supply device is controlled to provide electric energy for the ventilation device, solar energy which is clean energy can be fully utilized, accurate and effective regulation and control of the internal temperature of the cable trench are achieved, it is guaranteed that the cable operates in a proper temperature environment, and the service life of the cable trench is prolonged. The operation stability is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of electric power facilities, and specifically relates to a cable channel ventilation device, method and equipment based on solar power supply. Background Art

[0002] A cable trench is an underground passage structure used for laying cables. The cable trench can provide effective physical protection for the cables. The cable trench concentrates the cables in a relatively closed underground space, avoiding direct exposure of the cables to the external environment, thereby reducing the possibility of the cables being crushed by vehicles, trampled by pedestrians, mechanically collided, and eroded by the natural environment (such as wind, rain, sun, sand, etc.), greatly reducing the risk of cables being damaged by external physical factors, and ensuring the stability and reliability of power transmission.

[0003] However, the cable trench is a relatively closed space, which leads to poor air flow inside it. During the operation of the cable, the current generates heat through the conductor. In the cable trench with poor air flow, this heat will gradually accumulate, resulting in a poor heat dissipation environment outside the cable. This poor heat dissipation condition will reduce the insulation performance of the cable, accelerate the aging of the cable insulation material, shorten the service life of the cable, and may even cause cable failure. Therefore, how to regulate the temperature inside the cable trench and ensure that the cable runs in a suitable temperature environment is an urgent problem that people in this field need to solve. Summary of the invention

[0004] The embodiments of the present application provide a cable trench ventilation device, method and equipment based on solar energy power supply, the purpose of which is to make full use of solar energy as a clean energy to achieve accurate and effective control of the temperature inside the cable trench, ensure that the cable operates in a suitable temperature environment, and improve operational stability.

[0005] In a first aspect, an embodiment of the present application provides a cable channel ventilation device based on solar power supply, the device comprising:

[0006] A temperature acquisition module is used to acquire the internal temperature data of the cable trench and the surface temperature data of the cable trench cover;

[0007] a power determination module, configured to determine the operating power of the ventilation device according to the internal temperature data and the ground surface temperature data when the internal temperature data is higher than the ground surface temperature data and higher than a preset temperature threshold;

[0008] The power supply control module is used to control the solar power supply device to provide electrical energy to the ventilation device according to the operating power, so that the ventilation device performs ventilation operations according to the operating power.

[0009] In a second aspect, an embodiment of the present application provides a cable channel ventilation method based on solar power supply, the method comprising:

[0010] The internal temperature data of the cable trench and the surface temperature data of the cable trench cover are obtained through the temperature acquisition module;

[0011] Determining the operating power of the ventilation device according to the internal temperature data and the surface temperature data by a power determination module when the internal temperature data is higher than the surface temperature data and higher than a preset temperature threshold;

[0012] The solar power supply device is controlled by the power supply control module to provide electric energy to the ventilation device according to the operating power, so that the ventilation device performs ventilation operation according to the operating power.

[0013] In a third aspect, an embodiment of the present application provides an electronic device, which includes a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the method described in the first aspect.

[0014] In the embodiment of the present application, the temperature acquisition module is used to obtain the internal temperature data of the cable trench and the surface temperature data at the cable trench cover; the power determination module is used to determine the operating power of the ventilation device according to the internal temperature data and the surface temperature data when the internal temperature data is higher than the surface temperature data and higher than the preset temperature threshold; the power supply control module is used to control the solar power supply device to provide electrical energy to the ventilation device according to the operating power, so that the ventilation device performs ventilation operations according to the operating power. The above-mentioned cable trench ventilation device based on solar power supply can make full use of solar energy as a clean energy to achieve accurate and effective regulation of the internal temperature of the cable trench, ensure the cable operates in a suitable temperature environment, and improve operational stability by determining the operating power of the ventilation device according to the internal temperature data and the surface temperature data and controlling the solar power supply device to provide electrical energy therefor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a cable channel ventilation device based on solar power supply provided in Example 1 of the present application;

[0016] Figure 2 It is a structural schematic diagram of a cable channel ventilation device based on solar power supply provided in Example 2 of the present application;

[0017] Figure 3 It is a schematic diagram of the structure of a cable channel ventilation device based on solar power supply provided in Example 3 of the present application;

[0018] Figure 4 It is a schematic diagram of the flow of the cable channel ventilation method based on solar power supply provided in the fourth embodiment of the present application;

[0019] Figure 5 It is a schematic diagram of the structure of an electronic device provided in Example 5 of the present application. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the present application clearer, the specific embodiments of the present application are further described in detail below in conjunction with the accompanying drawings. It is understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for the convenience of description, only the part related to the present application but not all the contents are shown in the accompanying drawings. Before discussing the exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flow charts. Although the flow chart describes each operation (or step) as a sequential process, many of the operations therein can be implemented in parallel, concurrently or simultaneously. In addition, the order of each operation can be rearranged. The process can be terminated when its operation is completed, but it can also have additional steps not included in the accompanying drawings. The process can correspond to a method, a function, a procedure, a subroutine, a subprogram, etc.

[0021] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0022] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0023] The cable channel ventilation device, method and equipment based on solar power supply provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings through specific embodiments and their application scenarios.

[0024] Embodiment 1

[0025] Figure 1Schematic diagram of the structure of the cable channel ventilation device based on solar power supply provided in the first embodiment of the present application. Figure 1 As shown, the device comprises:

[0026] The temperature acquisition module 110 is used to acquire the internal temperature data of the cable trench and the surface temperature data of the cable trench cover;

[0027] A power determination module 120, configured to determine the operating power of the ventilation device according to the internal temperature data and the ground surface temperature data when the internal temperature data is higher than the ground surface temperature data and higher than a preset temperature threshold;

[0028] The power supply control module 130 is used to control the solar power supply device to provide electric energy to the ventilation device according to the operating power, so that the ventilation device performs ventilation operation according to the operating power.

[0029] This application is applicable to the scenario where cables are laid in a cable trench. Specifically, the determination of the operating power of the ventilation device and the control of the solar power supply device and the ventilation device can be performed by the intelligent terminal device, and the ventilation operation is performed by the ventilation device, and the internal temperature data of the cable trench is reduced to be consistent with the surface temperature data at the cable trench cover.

[0030] Based on the above usage scenarios, it can be understood that the executor of the present application can be a smart terminal device, such as a desktop computer, a laptop computer, a mobile phone, a tablet computer, and interactive multimedia, etc., and no excessive limitations are made here.

[0031] The temperature acquisition module 110 is used to acquire the internal temperature data of the cable trench and the surface temperature data at the cable trench cover.

[0032] A cable is a device used to transmit electricity or signals. A cable trench is an underground passage structure used to lay cables.

[0033] The internal temperature data of the cable trench can be a quantitative description of the hot and cold conditions of the relatively closed space inside the cable trench. The internal temperature data of the cable trench can be collected by a temperature sensor installed inside the cable trench.

[0034] The cable trench cover can be located at the junction between the ground surface and the inside of the cable trench, and the ground surface temperature data at the cable trench cover can be a quantitative description of the hot and cold conditions of the ground surface above the cable trench cover. The ground surface temperature data at the cable trench cover can be collected by a temperature sensor installed on the cable trench cover.

[0035] The power determination module 120 is used to determine the operating power of the ventilation device according to the internal temperature data and the ground surface temperature data when the internal temperature data is higher than the ground surface temperature data and higher than a preset temperature threshold.

[0036] The preset temperature threshold may be a temperature standard that is pre-set based on factors such as the safe operating temperature of the cable, the tolerable temperature of the equipment in the cable trench, etc., and is used to identify whether to control the ventilation device to perform ventilation operations.

[0037] It can be understood that if the internal temperature data is higher than the surface temperature data, it means that controlling the ventilation device to perform ventilation operations at this time can lower the internal temperature data. If the internal temperature data is higher than the preset temperature threshold, it means that the current internal temperature data will have an adverse effect on the normal operation of the cable and / or other equipment in the cable trench, and the internal temperature data needs to be lowered.

[0038] The ventilation device may be a device used to regulate the air circulation inside the cable trench, such as a ventilator, etc. The operating power may refer to the electrical power consumed by the ventilation device during the ventilation operation, and the operating power determines the ventilation capacity and other performance of the ventilation device.

[0039] The method of determining the operating power of the ventilation device according to the internal temperature data and the surface temperature data can be adopted to determine the ventilation volume according to the internal temperature data and the surface temperature data, and determine the operating power of the ventilation device according to the ventilation volume.

[0040] The power supply control module 130 is used to control the solar power supply device to provide electric energy to the ventilation device according to the operating power, so that the ventilation device performs ventilation operation according to the operating power.

[0041] The solar power supply device can be a combination of equipment that uses solar energy to generate electrical energy, and can include parts such as solar panels and batteries. The solar power supply device serves as a power source for the ventilation device, and uses renewable solar energy resources to provide electrical energy to the ventilation device according to the operating power. Specifically, when the energy storage power data of the solar power supply device is not lower than the operating power, the solar panel is controlled to provide electrical energy to the ventilation device according to the operating power. When the energy storage power data of the solar power supply device is lower than the operating power, the solar panel and the battery are controlled to provide electrical energy to the ventilation device at the same time.

[0042] In the example of the present application, the temperature acquisition module is used to obtain the internal temperature data of the cable trench and the surface temperature data at the cable trench cover; the power determination module is used to determine the operating power of the ventilation device according to the internal temperature data and the surface temperature data when the internal temperature data is higher than the surface temperature data and higher than the preset temperature threshold; the power supply control module is used to control the solar power supply device to provide electrical energy to the ventilation device according to the operating power, so that the ventilation device performs ventilation operations according to the operating power. This technical solution can make full use of solar energy, a clean energy, to achieve accurate and effective regulation of the internal temperature of the cable trench, ensure that the cable operates in a suitable temperature environment, and improve operational stability by determining the operating power of the ventilation device according to the internal temperature data and the surface temperature data and controlling the solar power supply device to provide electrical energy thereto.

[0043] Embodiment 2

[0044] Figure 2 It is a structural schematic diagram of a cable channel ventilation device based on solar power supply provided in Example 2 of the present application. This solution has made better improvements on the basis of the above-mentioned embodiments, and the specific improvements are as follows: the solar power supply device includes a solar panel and a battery; accordingly, the power supply control module includes: an energy storage power acquisition unit, which is used to obtain the energy storage power data of the solar power supply device; a single-source direct power supply unit, which is used to control the solar panel to provide electrical energy to the ventilation device according to the operating power when the energy storage power data is not lower than the operating power, so that the ventilation device performs ventilation operations according to the operating power; a dual-source collaborative power supply unit, which is used to control the solar panel and the battery to simultaneously provide electrical energy to the ventilation device when the energy storage power data is lower than the operating power, so that the ventilation device performs ventilation operations according to the operating power.

[0045] like Figure 2 As shown, the device comprises:

[0046] The temperature acquisition module 210 is used to acquire the internal temperature data of the cable trench and the surface temperature data of the cable trench cover;

[0047] A power determination module 220, configured to determine the operating power of the ventilation device according to the internal temperature data and the ground surface temperature data when the internal temperature data is higher than the ground surface temperature data and higher than a preset temperature threshold;

[0048] The power supply control module 230 is used to control the solar power supply device to provide electric energy to the ventilation device according to the operating power, so that the ventilation device performs ventilation operation according to the operating power.

[0049] The power supply control module 230 includes:

[0050] The energy storage power acquisition unit 2301 is used to acquire energy storage power data of the solar power supply device;

[0051] The single-source direct power supply unit 2302 is used to control the solar panel to provide electric energy to the ventilation device according to the operating power when the energy storage power data is not lower than the operating power, so that the ventilation device performs ventilation operation according to the operating power;

[0052] The dual-source collaborative power supply unit 2303 is used to control the solar panel and the battery to simultaneously provide power to the ventilation device when the energy storage power data is lower than the operating power, so that the ventilation device performs ventilation operations according to the operating power.

[0053] Solar panels work primarily on the principle of the photoelectric effect. When sunlight shines on a solar panel, the photons interact with the semiconductor material in the solar panel. The electrons in the semiconductor material absorb the energy of the photons and jump from their original low energy level to a high energy level, thereby generating electron-hole pairs. Under the action of the electric field inside the solar panel, the electrons and holes move in opposite directions, which creates a potential difference at both ends of the solar panel, thereby forming direct current.

[0054] The energy storage power data may refer to the amount of electrical power that can be output by a solar panel after converting light energy into electrical energy. The energy storage power data of a solar power supply device may be acquired by collecting the energy storage power data through a power sensor disposed in an output circuit of the solar panel.

[0055] The energy storage power data is not lower than the operating power, which means that the electricity provided by the solar panels alone is enough for the ventilation device to operate at the operating power. Therefore, by controlling the solar panels to provide electricity to the ventilation device at the operating power, the ventilation device can operate at the operating power.

[0056] The energy storage power data is lower than the operating power, which means that the electricity provided by the solar panels alone is not enough for the ventilation device to perform ventilation operations according to the operating power, and the battery is also needed to provide electricity. Among them, the battery is a device that can store electrical energy in the form of chemical energy and convert the chemical energy into electrical energy when needed. Specifically, the method of controlling the solar panels and the battery to provide electrical energy to the ventilation device at the same time can be to determine the supplementary power supply power of the battery according to the energy storage power data and the operating power, control the solar panels to provide electrical energy to the ventilation device according to the energy storage power data, and control the battery to provide electrical energy to the ventilation device according to the supplementary power supply power.

[0057] In the technical solution, optionally, the dual-source collaborative power supply unit is specifically used to:

[0058] Determining the supplementary power supply power of the battery according to the energy storage power data and the operating power;

[0059] The solar cell panel is controlled to provide electric energy to the ventilation device according to the energy storage power data, and the storage battery is controlled to provide electric energy to the ventilation device according to the supplementary power supply power, so that the ventilation device performs ventilation operation according to the operating power.

[0060] The supplementary power supply may refer to the power output of the battery to provide electric energy to the ventilation device. The supplementary power supply of the battery may be determined by subtracting the energy storage power data from the operating power to obtain the supplementary power supply of the battery.

[0061] The benefit of this arrangement of the present scheme is that by determining the supplementary power supply power of the battery according to the energy storage power data and the operating power, and controlling the solar panels to provide electricity according to the energy storage power data, and controlling the battery to provide electricity according to the supplementary power supply power, the instant power generation efficiency of the solar panels can be fully utilized, and the energy storage of the battery can be flexibly called upon to meet the power demand for stable operation of the ventilation device, thereby avoiding excessive waste or insufficient supply of electricity and effectively ensuring that the ventilation operation is carried out continuously and effectively.

[0062] The advantage of setting up this scheme is that by controlling the solar panels to provide electricity to the ventilation device according to the operating power when the energy storage power data is not lower than the operating power, or controlling the solar panels and batteries to provide electricity to the ventilation device at the same time when the energy storage power data is lower than the operating power, the solar energy resources can be fully utilized, and the power supply strategy can be flexibly adjusted according to the actual energy storage capacity of the solar power supply device to ensure that the ventilation device can always operate stably according to the required operating power, thereby enhancing the adaptability and robustness of the entire system.

[0063] Embodiment 3

[0064] Figure 3 This is a schematic diagram of the structure of a cable channel ventilation device based on solar power supply provided in Example 3 of the present application. This solution has made better improvements on the basis of the above embodiments, and the specific improvements are as follows: the power determination module includes: a ventilation volume determination unit, which is used to determine the ventilation volume according to the internal temperature data and the surface temperature data when the internal temperature data is higher than the surface temperature data and higher than the preset temperature threshold; an operating power determination unit, which is used to determine the operating power of the ventilation device according to the ventilation volume.

[0065] like Figure 3As shown, the device comprises:

[0066] The temperature acquisition module 310 is used to acquire the internal temperature data of the cable trench and the surface temperature data of the cable trench cover;

[0067] A power determination module 320, configured to determine the operating power of the ventilation device according to the internal temperature data and the ground surface temperature data when the internal temperature data is higher than the ground surface temperature data and higher than a preset temperature threshold;

[0068] The power supply control module 330 is used to control the solar power supply device to provide electric energy to the ventilation device according to the operating power, so that the ventilation device performs ventilation operation according to the operating power.

[0069] Wherein, the power determination module 320 includes:

[0070] A ventilation volume determination unit 3201 is used to determine the ventilation volume according to the internal temperature data and the ground surface temperature data when the internal temperature data is higher than the ground surface temperature data and higher than a preset temperature threshold;

[0071] The operating power determination unit 3202 is used to determine the operating power of the ventilation device according to the ventilation volume.

[0072] Ventilation volume can refer to the volume of air passing through a certain space in a unit of time, and the unit is generally cubic meters per hour. The method of determining the ventilation volume based on the internal temperature data and the surface temperature data can be adopted to obtain the specification parameters and load current data of each cable in the cable trench, determine the total heating power in the cable trench based on the specification parameters and the load current data, and determine the ventilation volume based on the temperature difference between the internal temperature data and the surface temperature data and the total heating power.

[0073] In the technical solution, optionally, the ventilation volume determination unit is specifically used to:

[0074] Obtaining specification parameters and load current data of each cable in the cable trench;

[0075] Determine the total heating power in the cable trench according to the specification parameters and the load current data;

[0076] The ventilation volume is determined according to the temperature difference between the internal temperature data and the ground surface temperature data and the total heating power.

[0077] The specification parameters of a cable can be a set of indicators used to describe various physical characteristics of the cable. The specification parameters of the cable can be obtained by referring to the product specification or technical manual of the cable.

[0078] The load current data may refer to the magnitude of the current flowing through the cable conductor. The load current data may be acquired by a current sensor.

[0079] The heating power may refer to the rate at which a cable generates heat due to the passage of current per unit time. The total heating power may refer to the heating power of all cables in the cable trench. The total heating power in the cable trench may be determined based on the specification parameters and the load current data. For a cable, the resistance value of the cable may be determined based on the specification parameters of the cable, the load current data of the cable may be squared, and the squared calculation result may be multiplied by the resistance value of the cable to obtain the heating power of the cable. The heating powers of all cables may be summed up to obtain the total heating power in the cable trench.

[0080] The ventilation volume can be determined based on the temperature difference between the internal temperature data and the surface temperature data and the total heating power. The ventilation volume can be obtained by multiplying the constant-pressure specific heat capacity of the air, the air density, and the temperature difference between the internal temperature data and the surface temperature data, and dividing the total heating power in the cable trench by the multiplication result.

[0081] The following is a sample code that determines the ventilation rate based on the internal temperature data and the ground surface temperature data:

[0082] #Specific heat capacity of air at constant pressure, unit: J / (JgJ℃), here we take an approximate value

[0083] specific_heat_capacity = 1005 # Air density, unit: Jg / m 3 , here we take the approximate value

[0084] air_density=1.293

[0085] #Simulate the specification parameters of each cable in the cable trench. Here, it is simply represented by a dictionary list. Each dictionary contains the 'resistance' key corresponding to the cable resistance value (unit: ohm)

[0086] cable_specifications=[

[0087] {'resistance': 0.5},

[0088] {'resistance': 0.8},

[0089] #You can add more cable parameter information according to actual conditions] #Simulated load current data, unit: ampere, the list length should correspond to the cable specification parameter list

[0090] load_current_data = [3,2] # Here is an example with two cables, corresponding to different current values

[0091] #Calculate the heating power of each cable and add up the total heating power

[0092] total_heat_power=0for iin range(len(cable_specifications)):

[0093] cable_resistance=cable_specifications[i]['resistance']

[0094] current=load_current_data[i]

[0095] heat_power=current**2*cable_resistance

[0096] total_heat_power+=heat_power

[0097] #Simulate internal temperature data and surface temperature data, unit: ℃

[0098] internal_temperature=30

[0099] surface_temperature=20

[0100] #Determine the ventilation volume based on the temperature difference and total heating power

[0101] temperature_difference=internal_temperature-surface_temperature

[0102] ventilation_volume=total_heat_power / (specific_heat_capacity*air_density*temperature_difference)

[0103] print("Ventilation volume:",ventilation_volume,"cubic meters per second")

[0104] In the technical solution, optionally, the ventilation volume determination unit is further used to:

[0105] Obtaining the cable density in the cable trench, and determining a corrected ventilation volume according to the ventilation volume and the cable density;

[0106] or,

[0107] Obtaining the internal volume and heat dissipation area of ​​the cable trench, and determining a corrected ventilation volume according to the ventilation volume, the internal volume and the heat dissipation area;

[0108] Accordingly, the operating power determination unit is specifically used to:

[0109] The operating power of the ventilation device is determined according to the corrected ventilation volume.

[0110] Cable density may refer to the proportion of cables in a unit volume of a cable trench; the internal volume of a cable trench may refer to the total volume of objects that can be accommodated in the internal space of the cable trench; and the heat dissipation area of ​​a cable trench may refer to the surface area inside the cable trench that can exchange heat with the air.

[0111] The revised ventilation volume can be a ventilation volume that is more in line with the actual heat dissipation requirements of the cable trench after taking into account factors such as cable density and / or internal volume and heat dissipation area based on the initially determined ventilation volume.

[0112] The method of determining the corrected ventilation volume according to the ventilation volume and the cable density can be to determine the correction coefficient corresponding to the current cable density according to the pre-constructed correlation between the cable density and the correction coefficient, and multiply the ventilation volume by the correction coefficient to obtain the corrected ventilation volume.

[0113] The method of determining the corrected ventilation volume according to the ventilation volume, internal volume and heat dissipation area can be adopted to calculate the ratio of the internal volume to the heat dissipation area, determine the correction coefficient corresponding to the current ratio according to the pre-established correlation between the ratio and the correction coefficient, and multiply the ventilation volume by the correction coefficient to obtain the corrected ventilation volume.

[0114] The benefit of this arrangement of the present invention is that by correcting the ventilation volume according to the cable density and / or the internal volume and heat dissipation area of ​​the cable trench, a corrected ventilation volume can be obtained, which can more accurately match the complex heat dissipation requirements and actual working conditions in the cable trench, thereby improving the intelligence level and adaptability of the entire cable trench ventilation and heat dissipation system.

[0115] The benefit of this scheme is that by determining the total heating power in the cable trench based on the specification parameters and load current data, and determining the ventilation volume based on the temperature difference between the internal temperature data and the surface temperature data and the total heating power, the ventilation volume can be accurately adapted to the actual heating conditions of the cable and the ambient temperature difference.

[0116] The method of determining the operating power of the ventilation device according to the ventilation volume can be achieved by obtaining the ventilation cross-sectional area and the motor efficiency of the ventilation device, determining the ventilation speed according to the ventilation volume and the ventilation cross-sectional area, determining the mechanical power of the ventilation device according to the ventilation volume and the ventilation speed, and determining the operating power of the ventilation device according to the mechanical power and the motor efficiency.

[0117] In the technical solution, optionally, the operating power determination unit is specifically used to:

[0118] Obtain the ventilation cross-sectional area of ​​the ventilation device and the motor efficiency;

[0119] Determine a ventilation speed according to the ventilation volume and the ventilation cross-sectional area, and determine a mechanical power of a ventilation device according to the ventilation volume and the ventilation speed;

[0120] The operating power of the ventilation device is determined according to the mechanical power and the motor efficiency.

[0121] The ventilation cross-sectional area may refer to the effective cross-sectional area of ​​the ventilation device in the ventilation direction. The motor efficiency may refer to the efficiency of the motor of the ventilation device in converting the input electrical energy into mechanical energy. The ventilation cross-sectional area and the motor efficiency of the ventilation device may be obtained by referring to the product manual of the ventilation device.

[0122] The ventilation speed may refer to the speed at which air flows in a ventilation device, and the unit is generally meters per second. The ventilation speed may be determined according to the ventilation volume and the ventilation cross-sectional area. The ventilation speed may be obtained by dividing the ventilation volume by the ventilation cross-sectional area.

[0123] Mechanical power refers to the power required by the ventilation device to drive the air flow, that is, the power calculated purely from the perspective of mechanical work without considering the motor efficiency. The mechanical power of the ventilation device can be determined based on the ventilation volume and ventilation speed by multiplying the square of the air density, ventilation volume and ventilation speed, and dividing the product by 2 to obtain the mechanical power of the ventilation device.

[0124] The operating power of the ventilation device can be determined by dividing the mechanical power of the ventilation device by the motor efficiency to obtain the operating power of the ventilation device.

[0125] Here is a sample code to determine the operating power of a ventilation unit:

[0126] #Assume that the ventilation volume has been obtained, the unit is cubic meters per second (in practice, it will be adjusted according to the specific unit conversion)

[0127] ventilation_volume=10#Example value, can be replaced#Air density, unit kilograms per cubic meter, generally take an approximate value (will vary under different environmental conditions)

[0128] air_density=1.293#Assume that the ventilation cross-sectional area has been obtained, the unit is square meters (example value, need to be replaced with the actual value)

[0129] cross_section_area = 0.5 # Assume that the motor efficiency has been obtained, in decimal form (for example, 80% is represented by 0.8)

[0130] motor_efficiency=0.8

[0131] #Determine the ventilation speed based on the ventilation volume and ventilation cross-sectional area

[0132] ventilation_speed=ventilation_volume / cross_section_area

[0133] #Determine the mechanical power of the ventilation device based on the ventilation volume and ventilation speed

[0134] mechanical_power=(air_density*ventilation_volume*ventilation_speed**2) / 2

[0135] #Determine the operating power of the ventilation device based on the mechanical power and motor efficiency

[0136] operating_power=mechanical_power / motor_efficiency

[0137] print("The operating power of the ventilation device is:",operating_power,"watt")

[0138] The advantage of setting up this scheme is that by determining the ventilation speed according to the ventilation volume and ventilation cross-sectional area, determining the mechanical power of the ventilation device according to the ventilation volume and ventilation speed, and finally determining the operating power of the ventilation device according to the mechanical power and motor efficiency, a precisely adapted operating power can be obtained, so that the operating power of the ventilation device is closely matched with the actual ventilation demand, avoiding energy waste or poor ventilation effect due to unreasonable operating power setting.

[0139] The advantage of this arrangement of the present scheme is that by determining the ventilation volume based on the internal temperature data and the ground surface temperature data, and determining the operating power of the ventilation device based on the ventilation volume, the operating power of the ventilation device can be flexibly adjusted according to the actual temperature conditions, so as to timely and appropriately restore the temperature in the cable trench to be consistent with the ground surface temperature data, thereby ensuring that the cable is always in a relatively stable and suitable temperature environment.

[0140] Embodiment 4

[0141] Figure 4 Schematic diagram of the process of the cable channel ventilation method based on solar power supply provided in the fourth embodiment of the present application. Figure 4 As shown, the specific steps include:

[0142] S401, obtaining internal temperature data of the cable trench and surface temperature data of the cable trench cover through a temperature acquisition module;

[0143] S402, determining, by a power determination module, an operating power of the ventilation device according to the internal temperature data and the ground surface temperature data when the internal temperature data is higher than the ground surface temperature data and higher than a preset temperature threshold;

[0144] S403, controlling the solar power supply device through the power supply control module to provide electric energy to the ventilation device according to the operating power, so that the ventilation device performs ventilation operation according to the operating power.

[0145] In an embodiment of the present application, the internal temperature data of the cable trench and the surface temperature data at the cable trench cover are obtained through a temperature acquisition module; when the internal temperature data is higher than the surface temperature data and higher than a preset temperature threshold, the operating power of the ventilation device is determined according to the internal temperature data and the surface temperature data through a power determination module; and the solar power supply device is controlled through a power supply control module to provide electrical energy to the ventilation device according to the operating power, so that the ventilation device performs ventilation operations according to the operating power. The above-mentioned cable trench ventilation method based on solar power supply can make full use of solar energy, a clean energy source, to achieve accurate and effective regulation of the internal temperature of the cable trench, ensure that the cable operates in a suitable temperature environment, and improve operational stability, by determining the operating power of the ventilation device according to the internal temperature data and the surface temperature data and controlling the solar power supply device to provide electrical energy therefor.

[0146] The cable channel ventilation method based on solar power supply provided in the embodiment of the present application corresponds to the cable channel ventilation device based on solar power supply provided in the above embodiment, and has the same functional modules and beneficial effects. To avoid repetition, they will not be described here.

[0147] Embodiment 5

[0148] like Figure 5 As shown, an embodiment of the present application also provides an electronic device 500, including a processor 501, a memory 502, and a program or instruction stored in the memory 502 and executable on the processor 501. When the program or instruction is executed by the processor 501, each process of the above-mentioned cable channel ventilation device embodiment based on solar power supply is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be described here.

[0149] It should be noted that the electronic devices in the embodiments of the present application include the mobile electronic devices and non-mobile electronic devices mentioned above.

[0150] Embodiment 6

[0151] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, each process of the above-mentioned embodiment of the cable channel ventilation device based on solar power supply is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0152] The processor is a processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0153] Embodiment 7

[0154] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned cable channel ventilation device embodiment based on solar power supply, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0155] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0156] It should be noted that, in this article, the term "comprises", "includes" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0157] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM / RAM, a disk, or an optical disk), and includes a number of instructions for a terminal (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in each embodiment of the present application.

[0158] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

[0159] The above are only preferred embodiments of the present application and the technical principles used. The present application is not limited to the specific embodiments described herein, and various obvious changes, readjustments and substitutions that can be made by those skilled in the art will not deviate from the scope of protection of the present application. Therefore, although the present application is described in more detail through the above embodiments, the present application is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the claims.

Claims

1. A cable channel ventilation device based on solar power supply, characterized in that: The device comprises: A temperature acquisition module is used to acquire the internal temperature data of the cable trench and the surface temperature data of the cable trench cover; a power determination module, configured to determine the operating power of the ventilation device according to the internal temperature data and the ground surface temperature data when the internal temperature data is higher than the ground surface temperature data and higher than a preset temperature threshold; The power supply control module is used to control the solar power supply device to provide electrical energy to the ventilation device according to the operating power, so that the ventilation device performs ventilation operations according to the operating power.

2. The cable channel ventilation device based on solar power supply according to claim 1 is characterized in that: The solar power supply device includes a solar panel and a battery; Correspondingly, the power supply control module includes: An energy storage power acquisition unit, used to acquire energy storage power data of a solar power supply device; A single-source direct power supply unit, used for controlling the solar panel to provide electric energy to the ventilation device according to the operating power when the energy storage power data is not lower than the operating power, so that the ventilation device performs ventilation operation according to the operating power; The dual-source collaborative power supply unit is used to control the solar panel and the battery to simultaneously provide power to the ventilation device when the energy storage power data is lower than the operating power, so that the ventilation device performs ventilation operations according to the operating power.

3. The cable channel ventilation device based on solar power supply according to claim 2 is characterized in that: The dual-source collaborative power supply unit is specifically used for: Determining the supplementary power supply power of the battery according to the energy storage power data and the operating power; The solar cell panel is controlled to provide electric energy to the ventilation device according to the energy storage power data, and the storage battery is controlled to provide electric energy to the ventilation device according to the supplementary power supply power, so that the ventilation device performs ventilation operation according to the operating power.

4. The cable channel ventilation device based on solar power supply according to claim 1, characterized in that: The power determination module comprises: a ventilation volume determination unit, configured to determine the ventilation volume according to the internal temperature data and the ground surface temperature data when the internal temperature data is higher than the ground surface temperature data and higher than a preset temperature threshold; The operating power determination unit is used to determine the operating power of the ventilation device according to the ventilation volume.

5. The cable channel ventilation device based on solar power supply according to claim 4 is characterized in that: The ventilation volume determination unit is specifically used for: Obtaining specification parameters and load current data of each cable in the cable trench; Determine the total heating power in the cable trench according to the specification parameters and the load current data; The ventilation volume is determined according to the temperature difference between the internal temperature data and the ground surface temperature data and the total heating power.

6. The cable channel ventilation device based on solar power supply according to claim 5, characterized in that: The ventilation volume determination unit is further used for: Obtaining the cable density in the cable trench, and determining a corrected ventilation volume according to the ventilation volume and the cable density; or, Obtaining the internal volume and heat dissipation area of ​​the cable trench, and determining a corrected ventilation volume according to the ventilation volume, the internal volume and the heat dissipation area; Accordingly, the operating power determination unit is specifically used to: The operating power of the ventilation device is determined according to the corrected ventilation volume.

7. The cable channel ventilation device based on solar power supply according to claim 4 is characterized in that: The operating power determination unit is specifically used for: Obtain the ventilation cross-sectional area of ​​the ventilation device and the motor efficiency; Determine a ventilation speed according to the ventilation volume and the ventilation cross-sectional area, and determine a mechanical power of a ventilation device according to the ventilation volume and the ventilation speed; The operating power of the ventilation device is determined according to the mechanical power and the motor efficiency.

8. A cable channel ventilation method based on solar power supply, characterized in that: The method comprises: The internal temperature data of the cable trench and the surface temperature data of the cable trench cover are obtained through the temperature acquisition module; Determine, by a power determination module, the operating power of the ventilation device according to the internal temperature data and the surface temperature data when the internal temperature data is higher than the surface temperature data and higher than a preset temperature threshold; The solar power supply device is controlled by the power supply control module to provide electric energy to the ventilation device according to the operating power, so that the ventilation device performs ventilation operation according to the operating power.

9. The cable channel ventilation method based on solar power supply according to claim 8, characterized in that: The solar power supply device includes a solar panel and a battery; Correspondingly, the solar power supply device is controlled by the power supply control module to provide electric energy to the ventilation device according to the operating power, so that the ventilation device performs ventilation operation according to the operating power, including: Acquire energy storage power data of the solar power supply device through an energy storage power acquisition unit; When the energy storage power data is not lower than the operating power, the solar panel is controlled to provide electric energy to the ventilation device according to the operating power through a single-source direct power supply unit, so that the ventilation device performs ventilation operation according to the operating power; When the energy storage power data is lower than the operating power, the dual-source collaborative power supply unit controls the solar panel and the battery to simultaneously provide electrical energy to the ventilation device, so that the ventilation device performs ventilation operations according to the operating power.

10. An electronic device, characterized in that: It includes a processor, a memory, and a program or instruction stored in the memory and executable on the processor. When the program or instruction is executed by the processor, the steps of the cable channel wind control method based on solar power supply are implemented as described in any one of claims 8 to 9.

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