Charging protection control method and system for traffic mobile cone

Abstract

The invention discloses a charging protection control method and system for a traffic mobile cone, and relates to the technical field of charging control. The method comprises the steps of judging whether a charging state is safe or not by acquiring battery data and charging data of the traffic moving cone during charging; if not, charging is ended, and early warning information is generated; if so, determining a charging mode of the target charging period according to the battery data; and determining control parameters according to the charging mode. By monitoring battery and charging parameters, it is ensured that the charging state is within a safe range. And the charging mode and the control parameters are dynamically adjusted in a safe range to adapt to different battery states, so that the service life of the battery is ensured while the charging efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of charging control, and particularly relates to a charging protection control method and system for a traffic movable cone. Background Art

[0002] The available energy and life of the battery of a traffic movable cone will decay with use. The decay rate is related to the operating conditions of the traffic movable cone, such as charging current, discharging current, temperature, and the SOC range of power consumption, among which the charging current has a particularly significant impact on the battery life.

[0003] In the prior art, the charging method of the battery is mainly CCCV (Constant Current, Constant Voltage), that is, constant current and constant voltage charging. In the initial stage of charging, the battery is charged in the constant current mode; when the voltage reaches the preset value, it switches to the constant voltage mode and gradually reduces the charging current until the current reaches the preset value. This method solves the problem of overcharging the battery to a certain extent. However, this method uses a fixed current amplitude value for batteries in different states, lacking adaptability to the actual environment. As a result, in the case of high-temperature high-power charging, heat accumulates faster during the constant current stage, making it easier to reach the thermal runaway threshold, resulting in the suspension of charging, reducing the charging efficiency, and accelerating the battery deterioration. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem of lacking adaptability to the actual environment mentioned in the above background art, and to propose a charging protection control method and system for a traffic movable cone.

[0005] In the first aspect of the implementation of the present invention, a charging protection control method for a traffic movable cone is provided. The method includes:

[0006] Obtain the battery data and charging data of the traffic movable cone; the battery data includes battery temperature data and battery power data; the charging data includes charging current data and charging voltage data;

[0007] Judge whether the charging state is safe according to the battery data and the charging data;

[0008] If it is not safe, end the charging and generate a warning message;

[0009] If it is safe, determine the charging mode of the target charging cycle according to the battery data;

[0010] Determine the control parameters according to the charging mode.

[0011] Optionally, the charging data further includes environmental temperature data; the step of judging whether the charging state is safe according to the battery data and the charging data includes:

[0012] If the battery temperature at the current moment exceeds the preset maximum temperature, it is determined that the charging state is unsafe;

[0013] If the battery temperature at the current moment does not exceed the maximum temperature, the reference rate of temperature rise of the battery is obtained according to the charging current data and the ambient temperature data;

[0014] According to the battery temperature data, the actual rate of temperature rise is obtained;

[0015] Calculate the deviation rate between the reference rate of temperature rise and the actual rate of temperature rise:

[0016]

[0017] where r is the deviation rate to be obtained; V reference is the reference rate of temperature rise; V actual is the actual rate of temperature rise;

[0018] If the deviation rate is greater than the preset warning threshold, it is determined that the charging state is unsafe.

[0019] Optionally, the determining the charging mode of the target charging cycle according to the battery data includes:

[0020] If the battery power at the current moment is less than the preset first switching threshold, the charging mode is determined to be the trickle charging mode;

[0021] If the battery power at the current moment is greater than the preset second switching threshold or the charging voltage is greater than the preset third switching threshold, the charging mode is determined to be the constant voltage charging mode; the second switching threshold is greater than the first switching threshold;

[0022] Otherwise, the charging mode is determined to be the constant current charging mode.

[0023] Optionally, the constant current charging mode is a multi-stage constant current charging mode;

[0024] The determining the control parameters according to the charging mode includes:

[0025] If the charging mode is the constant current charging mode, the current battery power is matched with the preset charging curve to determine the baseline current;

[0026] According to the current battery temperature and the baseline current, the charging current is calculated:

[0027]

[0028] where I charge is the charging current to be obtained; I baseis the baseline current; T battery is the current battery temperature; T1, T2, and T max are preset temperature thresholds; α is the temperature compensation coefficient.

[0029] Optionally, the traffic moving cone includes a heating unit; the method further includes:

[0030] At the charging start moment, obtain the initial temperature of the traffic moving cone battery;

[0031] If the initial temperature is lower than the preset minimum temperature, heat the traffic moving cone battery to the minimum temperature through the heating unit.

[0032] In a second aspect of the implementation of the present invention, a charging protection control system for a traffic moving cone is provided. The system includes:

[0033] A data acquisition module for obtaining the battery data and charging data of the traffic moving cone; the battery data includes battery temperature data and battery power data; the charging data includes charging current data and charging voltage data;

[0034] A status judgment module for judging whether the charging status is safe according to the battery data and the charging data;

[0035] An emergency stop module for ending the charging and generating a warning message if it is not safe;

[0036] A mode selection module for determining the charging mode of the target charging cycle according to the battery data if it is safe;

[0037] A parameter determination module for determining control parameters according to the charging mode.

[0038] Optionally, the charging data further includes ambient temperature data; the status judgment module includes:

[0039] An overlimit judgment module for determining that the charging status is not safe if the battery temperature at the current moment exceeds the preset maximum temperature;

[0040] A reference setting module for obtaining the reference rate of temperature rise of the battery according to the charging current data and the ambient temperature data if the battery temperature at the current moment does not exceed the maximum temperature;

[0041] A temperature rise calculation module for obtaining the actual rate of temperature rise according to the battery temperature data;

[0042] A deviation calculation module for calculating the deviation rate between the reference rate of temperature rise and the actual rate of temperature rise:

[0043]

[0044] Among them, r is the required deviation rate; V reference is the reference temperature rise rate; V actual is the actual temperature rise rate;

[0045] An abnormal judgment module, which is used to determine that the charging state is unsafe if the deviation rate is greater than a preset warning threshold.

[0046] Optionally, the mode selection module includes:

[0047] A trickle selection module, which is used to determine the charging mode as the trickle charging mode if the battery power at the current moment is less than a preset first switching threshold;

[0048] A constant voltage selection module, which is used to determine the charging mode as the constant voltage charging mode if the battery power at the current moment is greater than a preset second switching threshold or the charging voltage is greater than a preset third switching threshold; the second switching threshold is greater than the first switching threshold;

[0049] A constant current selection module, which is used to determine the charging mode as the constant current charging mode in other cases.

[0050] Optionally, the constant current charging mode is a multi-stage constant current charging mode;

[0051] The parameter determination module includes:

[0052] A preset value selection module, which is used to match the current battery power with a preset charging curve to determine the baseline current if the charging mode is the constant current charging mode;

[0053] A current amplitude correction module, which is used to calculate the charging current according to the current battery temperature and the baseline current:

[0054]

[0055] Among them, I charge is the required charging current; I base is the baseline current; T battery is the current battery temperature; T1, T2 and T max are preset temperature thresholds; α is the temperature compensation coefficient.

[0056] Optionally, the traffic moving cone includes a heating unit; the system further includes:

[0057] A start detection module, which is used to obtain the initial temperature of the traffic moving cone battery at the charging start moment;

[0058] A preheating module is used to heat the traffic cone battery to the lowest temperature through the heating unit if the initial temperature is lower than the preset lowest temperature.

[0059] Advantages of the present invention:

[0060] The present invention provides a charging protection control method for a traffic cone, which includes: obtaining battery data and charging data of the traffic cone; the battery data includes battery temperature data and battery power data; the charging data includes charging current data and charging voltage data; judging whether the charging state is safe according to the battery data and the charging data; if it is not safe, ending the charging and generating a warning message; if it is safe, determining the charging mode of the target charging cycle according to the battery data; and determining control parameters according to the charging mode.

[0061] By monitoring battery and charging parameters, it is ensured that the charging state is within a safe range. And the charging mode and control parameters are dynamically adjusted within the safe range to adapt to different battery states, thus improving the charging efficiency while ensuring the service life of the battery. Description of the Drawings

[0062] The present invention will be further described below with reference to the accompanying drawings.

[0063] Figure 1 It is a flowchart of a charging protection control method for a traffic cone provided by an embodiment of the present invention;

[0064] Figure 2 It is an architecture diagram of a charging protection control system for a traffic cone provided by an embodiment of the present invention. Detailed Embodiments

[0065] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0066] An embodiment of the present invention provides a charging protection control method for a traffic cone. Refer to Figure 1 , Figure 1 It is a flowchart of a charging protection control method for a traffic cone provided by an embodiment of the present invention. The method includes the following steps:

[0067] S101, obtaining battery data and charging data of the traffic cone.

[0068] S102, judging whether the charging state is safe according to the battery data and the charging data.

[0069] S103, if it is not safe, end the charging and generate a warning message.

[0070] S104, if it is safe, determine the charging mode for the target charging cycle according to the battery data.

[0071] S105, determine the control parameters according to the charging mode.

[0072] Among them, the battery data includes battery temperature data and battery power data; the charging data includes charging current data and charging voltage data. The sampling period of each data includes the time from the start of charging to the current time.

[0073] Based on a charging protection control method for a traffic mobile cone provided by an embodiment of the present invention, by monitoring the battery and charging parameters, it is ensured that the charging state is within a safe range. And the charging mode and control parameters are dynamically adjusted within the safe range to adapt to different battery states, thereby improving the charging efficiency while ensuring the service life of the battery.

[0074] In one implementation, the traffic mobile cone can be charged through a charging stand. The charging stand includes a mobile cone fixing structure, an anti-collision lining, an electrical connection device, a communication unit, and a data processing unit. After the traffic mobile cone is placed, charging can start automatically. The communication unit is used to realize wireless communication between the charging stand and the traffic mobile cone, so as to obtain the self-check data of the traffic mobile cone.

[0075] In one embodiment, the charging data further includes ambient temperature data; step S102 includes:

[0076] Step 1, if the battery temperature at the current time exceeds the preset maximum temperature, it is determined that the charging state is not safe.

[0077] Step 2, if the battery temperature at the current time does not exceed the maximum temperature, obtain the reference rate of temperature rise of the battery according to the charging current data and the ambient temperature data.

[0078] Step 3, obtain the actual rate of temperature rise according to the battery temperature data.

[0079] Step 4, calculate the deviation rate between the reference rate of temperature rise and the actual rate of temperature rise:

[0080]

[0081] Among them, r is the required deviation rate; V reference is the reference rate of temperature rise; V actual is the actual rate of temperature rise.

[0082] Step 5, if the deviation rate is greater than the preset warning threshold, it is determined that the charging state is not safe.

[0083] In one implementation, based on the conventional upper temperature limit monitoring, the calculation of the temperature rise rate and deviation monitoring are added. Even if the current temperature does not exceed the threshold, but if the temperature rise speed is too fast, it will be determined that the charging is unsafe, and potential overheating risks can be avoided in advance, improving the charging safety. By controlling the temperature change and avoiding excessive temperature rise, the aging loss of battery materials can be effectively reduced, thereby extending the service life of the battery.

[0084] In one implementation, by conducting experiments at different charging currents and ambient temperatures, the temperature rise data of the battery are obtained. According to the experimental data, the mapping relationship between the temperature rise rate and the charging current and ambient temperature can be obtained through mathematical analysis or machine learning models. According to the charging current data and ambient temperature data, the reference temperature rise rate of the battery includes:

[0085] According to the charging current and ambient temperature at each sampling moment, the temperature rise rate at each sampling moment is obtained:

[0086] S i =f(I i ,T i )

[0087] where S i is the temperature rise rate at the i-th sampling moment; I i is the charging current at the i-th sampling moment; T i is the ambient temperature at the i-th sampling moment; and f is the mapping model.

[0088] The average of the temperature rise rates at multiple sampling moments within a preset time period is obtained to get the reference temperature rise rate within the preset time period.

[0089] In one embodiment, step S104 includes:

[0090] Step 1, if the battery power at the current moment is less than the preset first switching threshold, the charging mode is determined to be the trickle charging mode.

[0091] Step 2, if the battery power at the current moment is greater than the preset second switching threshold or the charging voltage is greater than the preset third switching threshold, the charging mode is determined to be the constant voltage charging mode.

[0092] Step 3, in other cases, the charging mode is determined to be the constant current charging mode.

[0093] where the second switching threshold is greater than the first switching threshold.

[0094] In one implementation, the first switching threshold can be set to 5%; the second switching threshold can be set to 85%; the third switching threshold can be set to the maximum charging voltage provided by the manufacturer. When the battery power is low, the trickle charging mode is adopted, which can effectively avoid the impact of the initial charging current on the battery, help protect the battery, reduce battery damage caused by rapid charging, and extend the battery life. When the battery is nearly full, it automatically enters the constant voltage mode, reducing the impact of large current charging on the fully charged battery and reducing the overcharging risk, thus ensuring battery safety.

[0095] In one embodiment, the constant current charging mode is a multi-stage constant current charging mode; step S105 includes:

[0096] Step 1, if the charging mode is the constant current charging mode, match the current battery power with the preset charging curve to determine the baseline current.

[0097] Step 2, calculate the charging current based on the current battery temperature and the baseline current:

[0098]

[0099] where, I charge is the required charging current; I base is the baseline current; T battery is the current battery temperature; T1, T2 and T max are the preset temperature thresholds and are constants; α is the temperature compensation coefficient and is a constant.

[0100] In one implementation, the charging current is calculated through temperature compensation to ensure the stability of the charging process in different temperature environments. Excessive or too low battery temperature will affect the charging efficiency and battery life. By dynamically adjusting the charging current to adapt to temperature changes, it effectively avoids the overheating problem caused by too high temperature, reduces the possibility of triggering overheat protection, improves the charging efficiency, and enhances the safety of the battery.

[0101] In one implementation, T1, T2 and T max can be determined based on the characteristics of the battery. For example, for a lithium battery, T1, T2 and T max can be set to 10°C, 35°C and 50°C respectively. The temperature compensation coefficient α can be set to 0.05. Charging is not performed on batteries less than 10°C or greater than 50°C.

[0102] In one embodiment, the traffic mobile cone includes a heating unit; the method further includes:

[0103] Step 1, at the moment of charging start, obtain the initial temperature of the traffic mobile cone battery.

[0104] Step 2: If the initial temperature is lower than the preset minimum temperature, heat the traffic cone battery to the minimum temperature through the heating unit.

[0105] In one implementation, by avoiding charging at low temperatures, damage to the battery structure and battery materials can be reduced, helping to extend the service life of the battery. The heated battery can accept current more evenly, reducing unnecessary heat accumulation and helping to maintain battery health.

[0106] In one implementation, the heating unit can be directly connected to the access power supply. In a low-temperature state, it can be heated and used without the need for the traffic cone battery to supply power.

[0107] The embodiment of the present invention provides a charging protection control system for a traffic cone. Refer to Figure 2 , Figure 2 which is the architecture diagram of a charging protection control system for a traffic cone provided by the embodiment of the present invention. The system includes:

[0108] A data acquisition module, configured to acquire battery data and charging data of the traffic cone.

[0109] A status judgment module, configured to judge whether the charging status is safe according to the battery data and the charging data.

[0110] An emergency stop module, configured to end the charging and generate a warning message if it is not safe.

[0111] A mode selection module, configured to determine the charging mode of the target charging cycle according to the battery data if it is safe.

[0112] A parameter determination module, configured to determine control parameters according to the charging mode.

[0113] Among them, the battery data includes battery temperature data and battery power data; the charging data includes charging current data and charging voltage data.

[0114] Based on the charging protection control system for a traffic cone provided by the embodiment of the present invention, by monitoring battery and charging parameters, it is ensured that the charging status is within a safe range. And the charging mode and control parameters are dynamically adjusted within the safe range to adapt to different battery states, thereby improving the charging efficiency while ensuring the service life of the battery.

[0115] In one embodiment, the status judgment module includes:

[0116] An overlimit judgment module, configured to judge that the charging status is not safe if the battery temperature at the current moment exceeds the preset maximum temperature.

[0117] A reference setting module, which is used to obtain a reference temperature rise rate of the battery according to the charging data if the battery temperature at the current moment does not exceed the maximum temperature.

[0118] A temperature rise calculation module, which is used to obtain the actual temperature rise rate according to the battery temperature data.

[0119] A deviation calculation module, which is used to calculate the deviation rate between the reference temperature rise rate and the actual temperature rise rate:

[0120]

[0121] where r is the required deviation rate; V reference is the reference temperature rise rate; V actual is the actual temperature rise rate.

[0122] An abnormal judgment module, which is used to determine that the charging state is unsafe if the deviation rate is greater than a preset warning threshold.

[0123] In one embodiment, the mode selection module includes:

[0124] A trickle selection module, which is used to determine the charging mode as the trickle charging mode if the battery power at the current moment is less than a preset first switching threshold.

[0125] A constant voltage selection module, which is used to determine the charging mode as the constant voltage charging mode if the battery power at the current moment is greater than a preset second switching threshold or the charging voltage is greater than a preset third switching threshold.

[0126] A constant current selection module, which is used to determine the charging mode as the constant current charging mode in other cases.

[0127] where the second switching threshold is greater than the first switching threshold.

[0128] In one embodiment, the constant current charging mode is a multi-stage constant current charging mode;

[0129] The parameter determination module includes:

[0130] A preset value selection module, which is used to match the current battery power with a preset charging curve to determine the baseline current if the charging mode is the constant current charging mode.

[0131] A current amplitude correction module, which is used to calculate the charging current according to the current battery temperature and the baseline current:

[0132]

[0133] where I charge is the required charging current; I base is the baseline current; T batteryis the current battery temperature; T1 and T2 are preset temperature thresholds, which are constants; α is a temperature compensation coefficient, which is a constant.

[0134] In one embodiment, the traffic cone includes a heating unit; the system further includes:

[0135] A startup detection module, configured to obtain the initial temperature of the traffic cone battery at the moment of charging startup.

[0136] A preheating module, configured to heat the traffic cone battery to the lowest temperature through the heating unit if the initial temperature is lower than the preset lowest temperature.

[0137] The above has described a specific embodiment of the present invention in detail, but the described content is only a preferred embodiment of the present invention and cannot be considered as limiting the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of the present invention application should still fall within the scope covered by the patent of the present invention.

Claims

1. A charging protection control method for a traffic moving cone, characterized in that The method includes: Obtaining the battery data and charging data of the traffic mobile cone; the battery data includes battery temperature data and battery power data; the charging data includes charging current data and charging voltage data; Judging whether the charging state is safe according to the battery data and the charging data; If it is not safe, end the charging and generate a warning message; If it is safe, determine the charging mode for the target charging cycle according to the battery data; Determine the control parameters according to the charging mode.

2. The charging protection control method of a traffic moving cone according to claim 1, wherein The charging data further includes environmental temperature data; the judging whether the charging state is safe according to the battery data and the charging data includes: If the battery temperature at the current moment exceeds the preset maximum temperature, it is determined that the charging state is not safe; If the battery temperature at the current moment does not exceed the maximum temperature, obtain the reference temperature rise rate of the battery according to the charging current data and the environmental temperature data; Obtain the actual temperature rise rate according to the battery temperature data; Calculate the deviation rate between the reference temperature rise rate and the actual temperature rise rate: where r is the deviation rate to be obtained; V reference is the reference temperature rise rate; V actual is the actual temperature rise rate; If the deviation rate is greater than the preset warning threshold, it is determined that the charging state is not safe.

3. A charging protection control method for a traffic mobile cone according to claim 1, characterized in that, The determining the charging mode for the target charging cycle according to the battery data includes: If the battery power at the current moment is less than the preset first switching threshold, determine the charging mode as the trickle charging mode; If the battery power at the current moment is greater than the preset second switching threshold or the charging voltage is greater than the preset third switching threshold, determine the charging mode as the constant voltage charging mode; the second switching threshold is greater than the first switching threshold; Otherwise, determine the charging mode as the constant current charging mode.

4. A charging protection control method for a traffic moving cone according to claim 3, characterized in that The constant current charging mode is a multi-stage constant current charging mode; The determining the control parameters according to the charging mode includes: If the charging mode is the constant current charging mode, match the current battery power with the preset charging curve to determine the baseline current; Calculate the charging current according to the current battery temperature and the baseline current: Among them, I charge is the required charging current; I base is the baseline current; T battery is the current battery temperature; T1, T2 and T max are preset temperature thresholds; α is the temperature compensation coefficient.

5. A charging protection control method for a traffic moving cone according to claim 1, characterized in that The traffic mobile cone includes a heating unit; the method further includes: At the charging start moment, obtain the initial temperature of the traffic mobile cone battery; If the initial temperature is less than the preset minimum temperature, heat the traffic mobile cone battery to the minimum temperature through the heating unit.

6. A charging protection control system for a traffic movable cone, characterized in that, The system includes: A data acquisition module for obtaining the battery data and charging data of the traffic mobile cone; the battery data includes battery temperature data and battery power data; the charging data includes charging current data and charging voltage data; A state judgment module for judging whether the charging state is safe according to the battery data and the charging data; An emergency stop module for ending the charging and generating a warning message if it is not safe; A mode selection module for determining the charging mode for the target charging cycle according to the battery data if it is safe; A parameter determination module for determining the control parameters according to the charging mode.

7. The charging protection control system of a traffic mobile cone according to claim 6, characterized in that, The charging data further includes environmental temperature data; the state judgment module includes: An overlimit judgment module for determining that the charging state is not safe if the battery temperature at the current moment exceeds the preset maximum temperature; A reference setting module, configured to obtain a reference temperature rise rate of the battery according to the charging current data and the ambient temperature data if the battery temperature at the current moment does not exceed the maximum temperature; A temperature rise calculation module, configured to obtain an actual temperature rise rate according to the battery temperature data; A deviation calculation module, configured to calculate a deviation rate between the reference temperature rise rate and the actual temperature rise rate; where r is the deviation rate to be determined; V reference is the reference temperature rise rate; V actual is the actual temperature rise rate; An abnormality determination module, configured to determine that the charging state is unsafe if the deviation rate is greater than a preset warning threshold; 8. The charging protection control system of a traffic mobile cone according to claim 6, characterized in that, The mode selection module includes: A trickle selection module, configured to determine the charging mode as the trickle charging mode if the battery power at the current moment is less than a preset first switching threshold; A constant voltage selection module, configured to determine the charging mode as the constant voltage charging mode if the battery power at the current moment is greater than a preset second switching threshold or the charging voltage is greater than a preset third switching threshold; the second switching threshold is greater than the first switching threshold; A constant current selection module, configured to determine the charging mode as the constant current charging mode in other cases.

9. The charging protection control system of a traffic mobile cone according to claim 8, characterized in that The constant current charging mode is a multi-stage constant current charging mode; The parameter determination module includes: A preset value selection module, configured to match the current battery power with a preset charging curve to determine a baseline current if the charging mode is the constant current charging mode; A current amplitude correction module, configured to calculate a charging current according to the current battery temperature and the baseline current; Among them, I charge is the required charging current; I base is the baseline current; T battery is the current battery temperature; T1, T2, and T max are preset temperature thresholds; α is the temperature compensation coefficient.

10. The charging protection control system of a traffic moving cone according to claim 6, characterized in that The traffic moving cone includes a heating unit; the system further includes: A start detection module, configured to obtain an initial temperature of the traffic moving cone battery at the charging start moment; A preheating module, configured to heat the traffic moving cone battery to the lowest temperature through the heating unit if the initial temperature is less than a preset lowest temperature.

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