A solar charging control device, system and control method

Abstract

The present invention relates to a solar charging control device, system and control method. The charging control device includes a monitoring module, a control module, a switch module and a heating module. The monitoring module is used to monitor the power parameters, charging and discharging data and environmental parameters of the battery; the control module is used to output a control signal according to the parameters monitored by the monitoring module to control the heating module and the switch module; the heating module is used to heat the battery according to the heating control signal of the control module; the switch module is used to open or close the charging path between the battery and the solar panel according to the charging control signal of the control module. The technical solution provided by the present invention fully considers the influence of environmental factors on the battery and the charging process when charging the battery with solar energy, adjusts the charging process according to the monitoring results of the environmental parameters, improves the charging efficiency and prolongs the service life of the battery.

Description

Technical Field

[0001] The present invention relates to the technical field of battery charging, and in particular to a solar charging control device, system and control method. Background Art

[0002] Solar energy is a new energy source and is widely used in places where it is inconvenient to get electricity or the wiring cost is high. In devices using solar energy, solar panels are generally used to convert solar energy into electrical energy, and then the converted electrical energy is stored in batteries. In the prior art, the system block diagram of a solar cell charging device is as follows: Figure 1 As shown, Figure 1 In the above prior art, when controlling the battery charging, the influence of environmental factors on the charging process is usually not considered. Summary of the invention

[0003] Based on the above situation of the prior art, the purpose of the present invention is to provide a solar charging control device, system and control method, which, when using solar energy to charge the battery, takes into account the impact of environmental factors on the battery and the charging process, improves the charging efficiency and extends the service life of the battery.

[0004] To achieve the above object, according to one aspect of the present invention, a solar charging control device is provided, which is used to control the battery to be charged through a solar panel, and includes a monitoring module, a control module, a switch module, and a heating module; wherein:

[0005] The monitoring module is connected to the battery and is used to monitor the battery's power parameters, charge and discharge data, and environmental parameters;

[0006] The control module is connected to the monitoring module, the heating module, and the switch module, and is used to output a control signal according to the parameters monitored by the monitoring module to control the heating module and the switch module;

[0007] The heating module is connected to the battery and is used to heat the battery according to the heating control signal of the control module;

[0008] The switch module is connected between the storage battery and the solar panel, and is used to open or close the charging path between the storage battery and the solar panel according to the charging control signal of the control module.

[0009] Furthermore, the monitoring module includes a power monitoring unit, a light intensity monitoring unit, a temperature monitoring unit and a humidity monitoring unit; and the environmental parameters include light intensity, temperature and humidity.

[0010] Furthermore, the heating module includes a thermal film heating unit.

[0011] Furthermore, it also includes a communication module and a GPS positioning module;

[0012] The GPS positioning module is used to monitor the positioning information of the device;

[0013] The communication module is used to send the positioning information and abnormal alarm information when the parameters monitored by the monitoring module are abnormal.

[0014] Furthermore, the communication module includes a 4G communication module or a 5G communication module.

[0015] According to a second aspect of the present invention, a solar charging control system is provided, comprising a background server and a solar charging control device, wherein the solar charging control device comprises the solar charging control device as described in the first aspect of the present invention; the solar charging control device exchanges information with the background server via a communication module.

[0016] According to a third aspect of the present invention, a control method for a solar charging control system is provided. The solar charging control system comprises the system according to the second aspect of the present invention, including:

[0017] Controlling the switch module and the heating module to operate according to whether the monitored power and temperature exceed a threshold value;

[0018] If the monitored temperature is higher than the first high temperature alarm threshold, and / or the humidity is higher than the humidity alarm threshold, the current positioning information, as well as the high temperature alarm information and / or the humidity alarm information are sent to the backend server;

[0019] Send each monitored charge and discharge data to the backend server to establish a big data model to monitor the battery;

[0020] The monitored light intensity, temperature and humidity parameters are sent to the backend server to establish a big data model to monitor the battery.

[0021] Further, the control of the switch module and the heating module to operate according to whether the monitored power and temperature exceed a threshold value includes:

[0022] If the power level is greater than or equal to the normal power level threshold and the temperature is lower than the low temperature threshold, controlling the heating module to heat the battery;

[0023] If the power level is less than the normal power threshold and the temperature is lower than the low temperature threshold, the switch module is controlled to open the charging path and increase the charging threshold of the charging power.

[0024] Further, the control of the switch module and the heating module to operate according to whether the monitored power and temperature exceed a threshold value includes:

[0025] When the battery is in the process of charging,

[0026] If the temperature is higher than a second high temperature threshold, the switch module is controlled to close the charging path.

[0027] Furthermore, the first high temperature threshold is higher than the second high temperature threshold.

[0028] In summary, the present invention provides a solar charging control device, system and control method. The charging control device includes a monitoring module, a control module, a switch module and a heating module. The monitoring module is used to monitor the power parameters, charging and discharging data and environmental parameters of the battery; the control module is used to output a control signal according to the parameters monitored by the monitoring module to control the heating module and the switch module; the heating module is used to heat the battery according to the heating control signal of the control module; the switch module is used to open or close the charging path between the battery and the solar panel according to the charging control signal of the control module. The technical solution provided by the present invention fully considers the influence of environmental factors on the battery and the charging process when charging the battery with solar energy, adjusts the charging process according to the monitoring results of the environmental parameters, improves the charging efficiency, and prolongs the service life of the battery; and can analyze the abnormal battery according to the monitored information and replace it in time, avoiding abnormality of the system using the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a system block diagram of a prior art solar cell charging device;

[0030] Figure 2 This is a flow chart of charging control using a voltage measurement method in the prior art;

[0031] Figure 3 It is a flow chart of charging control using a fuel meter and a charging controller in the prior art;

[0032] Figure 4 It is a block diagram of the solar charging control device of the present invention. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0034] In the prior art, there are mainly the following methods for controlling the charging of solar cells:

[0035] (1) Voltage measurement method

[0036] Ideally, there is a certain linear relationship between battery power and voltage, and the current battery capacity can be determined by measuring the battery voltage. First, the battery voltage is collected. When the battery voltage is lower than a certain threshold, it means that the battery capacity is low and needs to be charged. When the battery needs to be charged, the battery is charged using the electricity converted by the solar panel. The charging control flow chart of this method is as follows Figure 2 shown.

[0037] (2) Using a fuel gauge and charge controller

[0038] The battery power can be obtained through the power meter. When the obtained power is less than a certain threshold, charging is started. The charging process can be controlled by the charging controller. First, the battery power is collected. When the battery power is too low, a small current is used for charging; when the battery power is higher than a certain threshold, a large current is enabled for charging; when the battery is almost full, a small current is enabled for charging. The charging control flow chart of this method is shown in the figure. Figure 3 shown.

[0039] However, none of the above control methods in the prior art consider the impact of environmental parameters on the battery. For example, the impact of temperature and humidity on the battery is not considered, which may easily lead to inaccurate power acquisition; the impact of light intensity on the solar panel is not considered, which may easily lead to the inability to determine whether the solar panel is working properly. In addition, these control methods do not have a battery fault reporting mechanism. In the case of multiple devices, it is impossible to determine which device has a battery problem; there is no low temperature protection measure, which may easily cause battery damage.

[0040] In view of the above technical problems, the embodiments of the present invention provide a solar charging control device, system and control method. When charging the battery with solar energy, the influence of environmental factors on the battery and the charging process is considered, the charging efficiency is improved, and the battery life is extended. The technical solution of the present invention is described in detail below with reference to the accompanying drawings. According to one embodiment of the present invention, a solar charging control device is provided, which is used to control the charging of the battery through the solar panel. The block diagram of the charging control device is shown in FIG. Figure 4 As shown, it includes a monitoring module, a control module, a switch module, and a heating module.

[0041] The monitoring module is connected to the battery and is used to monitor the battery's power parameters, charge and discharge data, and environmental parameters. The monitoring module may include a power monitoring unit, a light intensity monitoring unit, a temperature monitoring unit, and a humidity monitoring unit; the environmental parameters include light intensity, temperature, and humidity. By setting the monitoring module, in addition to monitoring the battery's power, environmental parameters such as light intensity, temperature, and humidity can also be monitored. The power monitoring unit can be implemented using a power meter, which uses a power meter to collect the current battery power. When charging is required, the control module outputs a control signal to control the charging process. Since the performance of the battery will be affected by temperature and humidity, the embodiment of the present invention obtains the light intensity and temperature and humidity of the current environment in real time, and collects the current battery power through the power meter, and controls the charging process according to the collected power and in combination with the light intensity and temperature and humidity of the current environment.

[0042] The control module is connected to the monitoring module, the heating module, and the switch module, and is used to output a control signal according to the parameters monitored by the monitoring module to control the heating module and the switch module.

[0043] The heating module is connected to the battery and is used to heat the battery according to the heating control signal of the control module. The heating module can be a thermal film heating unit.

[0044] The switch module is connected between the battery and the solar panel, and is used to open or close the charging path between the battery and the solar panel according to the charging control signal of the control module. The switch module can be implemented by a controllable switch element, and the control end is connected to the control module to control the charging process according to the charging control signal output by the control module.

[0045] The charging control device may also include a communication module and a GPS positioning module. The GPS positioning module is used to monitor the positioning information of the device; the communication module is used to send the positioning information and abnormal alarm information when the parameters monitored by the monitoring module are abnormal. The communication module is, for example, a 4G communication module or a 5G communication module.

[0046] According to a second embodiment of the present invention, a solar charging control system is provided, including a background server and a solar charging control device, wherein the solar charging control device includes the solar charging control device as described in the first embodiment of the present invention; the solar charging control device exchanges information with the background server via a communication module.

[0047] According to a third embodiment of the present invention, a control method for a solar charging control system is provided, wherein the solar charging control system comprises the system according to the second embodiment of the present invention, comprising the following steps:

[0048] The switch module and the heating module are controlled to operate according to whether the monitored power and temperature exceed a threshold value.

[0049] In some embodiments, if the power level is greater than or equal to the normal power threshold and the temperature is lower than the low temperature threshold, the heating module is controlled to heat the battery; if the power level is less than the normal power threshold and the temperature is lower than the low temperature threshold, the switch module is controlled to open the charging path and increase the charging threshold of the charging power. The charging threshold of the charging power means that when the monitored power level is lower than the charging threshold, the battery needs to be charged. For example, the charging power threshold is 30 under normal environmental conditions. When it is detected that the battery power is lower than 30, the battery starts to be charged. In abnormal environmental conditions, such as low temperature conditions, the charging power threshold can be appropriately increased to 35, and the charging power threshold can be appropriately lowered to 28 under high temperature conditions.

[0050] In some embodiments, if the power level is greater than or equal to the normal power threshold and the temperature is lower than the low temperature threshold, the heating module is controlled to heat the battery; if the power level is less than the normal power threshold and the temperature is lower than the low temperature threshold, the switch module is controlled to open the charging path and increase the charging threshold of the charging power.

[0051] In some embodiments, when the battery is in the charging process, if the temperature is higher than a second high temperature threshold, the switch module is controlled to close the charging path, wherein the first high temperature threshold is higher than the second high temperature threshold.

[0052] When the temperature is low, it will not only affect the accuracy of power acquisition, but also affect the discharge capacity of the battery. Therefore, when the temperature is low, there are two situations to deal with:

[0053] The first situation: the battery is fully charged and the temperature is low. At this time, the battery's discharge capacity is weakened. In order to ensure the normal discharge operation of the battery, the thermal resistance film on the outside of the battery is powered on and heated to increase the ambient temperature of the battery.

[0054] The second situation: the battery power is low and the temperature is low. In order to charge the battery in time, the charging threshold of the charging power is increased and the charging control process is started.

[0055] If the monitored temperature is higher than the first high temperature alarm threshold, and / or the humidity is higher than the humidity alarm threshold, the current positioning information, as well as the high temperature alarm information and / or the humidity alarm information are sent to the background server. When the temperature is high, the electrochemical reaction of the battery is accelerated, the electrolyte evaporates quickly, the plate is easily damaged, and overcharging is easily caused, which seriously affects the service life of the battery. Therefore, in the process of charging the battery in this embodiment, if the current ambient temperature is high, the charging process can be terminated in advance; if the current temperature is higher than a certain threshold, the current battery's GPS information and high temperature alarm information are sent to the background server, triggering the background server alarm.

[0056] In some embodiments, the humidity of the current environment can also be obtained in real time. Too high or too low humidity will cause irreversible damage to the battery. When abnormal humidity is detected in the on-site environment, the GPS location of the current battery is reported to the background server, and the background server can notify the maintenance personnel to check the problem on site through the alarm system.

[0057] Each monitored charge and discharge data is sent to the backend server to establish a big data model to monitor the battery. The battery charge and discharge time and charge and discharge current under the same environment are regularly compared to detect battery abnormalities and replace them in time to avoid battery damage that causes the system to malfunction.

[0058] The monitored light intensity, temperature and humidity parameters are sent to the background server to establish a big data model to monitor the battery. When the background server detects the same temperature and humidity, the light intensity information weakens. When it weakens to a certain threshold, the background alarm is triggered to notify the maintenance personnel to check whether the solar panels are damaged or blocked.

[0059] In summary, the present invention provides a solar charging control device, system and control method. The charging control device includes a monitoring module, a control module, a switch module and a heating module. The monitoring module is used to monitor the power parameters, charging and discharging data and environmental parameters of the battery; the control module is used to output a control signal according to the parameters monitored by the monitoring module to control the heating module and the switch module; the heating module is used to heat the battery according to the heating control signal of the control module; the switch module is used to open or close the charging path between the battery and the solar panel according to the charging control signal of the control module. The technical solution provided by the present invention fully considers the influence of environmental factors on the battery and the charging process when charging the battery with solar energy, adjusts the charging process according to the monitoring results of the environmental parameters, improves the charging efficiency, and prolongs the service life of the battery; and can analyze the abnormal battery according to the monitored information and replace it in time, avoiding abnormality of the system using the battery.

[0060] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the appended claims, or the equivalent forms of such scope and boundaries.

Claims

1. A control method for a solar charging control system, characterized in that: The solar charging control system includes a background server and a solar charging control device, and the solar charging control device includes a monitoring module, a control module, a switch module, and a heating module; the monitoring module is connected to the battery and is used to monitor the power parameters, charging and discharging data, and environmental parameters of the battery; the control module is connected to the monitoring module, the heating module, and the switch module and is used to output a control signal according to the parameters monitored by the monitoring module to control the heating module and the switch module; the heating module is connected to the battery and is used to heat the battery according to the heating control signal of the control module; the switch module is connected between the battery and the solar panel and is used to open or close the charging path between the battery and the solar panel according to the charging control signal of the control module; The heating module is a thermal film heating unit; the method comprises: According to whether the monitored power and temperature exceed the threshold, the switch module and the heating module are controlled to work; including: if the power is greater than or equal to the normal power threshold and the temperature is lower than the low temperature threshold, the heating module is controlled to heat the battery; if the power is less than the normal power threshold and the temperature is lower than the low temperature threshold, the switch module is controlled to open the charging path and increase the charging threshold of the charging power; If the monitored temperature is higher than the first high temperature alarm threshold, and / or the humidity is higher than the humidity alarm threshold, the current positioning information, as well as the high temperature alarm information and / or the humidity alarm information are sent to the backend server; Send each monitored charge and discharge data to the backend server to establish a big data model to monitor the battery; The monitored light intensity, temperature and humidity parameters are sent to the backend server to establish a big data model to monitor the battery.

2. The method according to claim 1, characterized in that The step of controlling the switch module and the heating module to operate according to whether the monitored power and temperature exceed a threshold value comprises: When the battery is in the process of charging, If the temperature is higher than a second high temperature threshold, the switch module is controlled to close the charging path.

3. The method according to claim 2, characterized in that The first high temperature alarm threshold is higher than the second high temperature threshold.

4. The method according to claim 1, characterized in that: The monitoring module includes a power monitoring unit, a light intensity monitoring unit, a temperature monitoring unit and a humidity monitoring unit; the environmental parameters include light intensity, temperature and humidity.

5. The method according to claim 4, characterized in that The control device also includes a communication module and a GPS positioning module; The GPS positioning module is used to monitor the positioning information of the device; The communication module is used to send the positioning information and abnormal alarm information when the parameters monitored by the monitoring module are abnormal.

6. The method according to claim 5, characterized in that The communication module includes a 4G communication module or a 5G communication module.

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