Smart city intelligent charging pile

Abstract

The invention discloses a smart city intelligent charging pile, and relates to the technical field of charging piles, and the technical key points are that the smart city intelligent charging pile comprises a charging pile housing, and the housing is internally provided with a temperature sensor, a timer, a control chip and a wireless alarm unit; when the temperature sensor detects that the temperature exceeds a first preset temperature, the timer carries out cycle timing according to a preset interval time, the start and the end of each cycle timing respectively record an initial temperature and an end temperature, and the control chip divides the preset interval time by the difference value between the end temperature and the initial temperature to obtain a temperature rising speed. When the temperature rise speed is higher than the preset warning speed, an early warning signal is triggered, and the control chip transmits the early warning signal to external monitoring equipment through the wireless alarm unit; the system has the function of detecting the fire risk in advance, and the fire risk is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of charging piles, and in particular to an intelligent charging pile for a smart city. Background Art

[0002] A smart city is a new concept and model that uses new generation information technologies such as the Internet of Things, cloud computing, big data, and spatial geographic information integration to promote the wisdom of urban planning, construction, management, and services.

[0003] The intelligent charging pile for a smart city is a charging platform that cooperates with various community properties, parking lots, and vehicle manufacturers for operation. The main scenarios of this project apply Internet of Things technology. The platform is developed with Java as the main technical language, and a small program is developed with uni-app. Big data technology is used for the storage, analysis, and monitoring of charging data. Its core business functions include a mobile transaction terminal, a management terminal, nearby charging stations, a charging function, a personal center, etc. For example, a user can obtain their own GPS location through a mobile phone, and the server searches for charging stations within 2 kilometers of the user and returns information accordingly; after the user scans the QR code on the charging gun to obtain the number, the server creates an order and sends an instruction to the charging gun to start charging. After the user finishes charging, the server sends a stop instruction, and the charging order information is displayed on the mobile phone.

[0004] However, the fire safety monitoring of some charging piles mainly relies on traditional devices such as smoke sensors, lacking the function of pre-detecting fire risks, which may lead to the spread of fires and cause serious losses. Summary of the Invention

[0005] In order to solve the above technical problems, the purpose of the present invention is to provide an intelligent charging pile for a smart city, which has the function of pre-detecting fire risks and reduces fire risks.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] An intelligent charging pile for a smart city includes a housing of the charging pile, and a temperature sensor, a timer, a control chip, and a wireless alarm unit are arranged inside the housing;

[0008] When the temperature sensor detects that the temperature exceeds a first preset temperature, the timer performs cyclic timing according to a preset interval time, and records the initial temperature and the end temperature respectively at the start and end of each cyclic timing. The control chip obtains the heating rate by dividing the difference between the end temperature and the initial temperature by the preset interval time. When the heating rate is higher than a preset warning rate, a warning signal is triggered, and the control chip transmits the warning signal to an external monitoring device through the wireless alarm unit;

[0009] When the temperature sensor detects that the temperature reaches the second preset temperature, an emergency alarm signal is triggered, and the control chip transmits the emergency alarm signal to an external monitoring device; the first preset temperature is lower than the second preset temperature.

[0010] Preferably, the preset interval time is set to 5 to 100 seconds.

[0011] Preferably, after the temperature detected by the temperature sensor exceeds the first preset temperature, as the detected temperature rises, the preset interval time will linearly and correspondingly shorten.

[0012] Preferably, the detection points of the temperature sensor at least correspond to the heat-generating parts of the battery module, charging module, and power conversion module of the charging pile.

[0013] Preferably, the warning signal and the emergency alarm signal include data packets of the geographical coding of the charging pile, voltage parameters, and device serial numbers.

[0014] Preferably, the charging pile includes a charging circuit and a built-in fire extinguishing device. When the emergency alarm signal is triggered, the control chip synchronously transmits a power-off signal to the charging circuit of the charging pile and activates the built-in fire extinguishing device of the charging pile.

[0015] Preferably, a data storage module is further arranged in the housing for recording the temperature change curve, alarm event logs, and corresponding timestamps.

[0016] The present invention has the following beneficial effects:

[0017] 1. Early warning to reduce the possibility of fire occurrence: The intelligent charging pile for smart cities has an early warning function, which can effectively reduce the possibility of fire occurrence. The temperature sensor arranged in the charging pile, when detecting that the temperature exceeds the first preset temperature, the timer performs cyclic timing according to the preset interval time, and the initial temperature and the end temperature are respectively recorded at the start and end of each cyclic timing. The control chip divides the difference between the end temperature and the initial temperature by the preset interval time to obtain the temperature rise rate. If the temperature rise rate is higher than the preset warning rate, a warning signal will be triggered, and the control chip transmits the warning signal to the external monitoring device through the wireless alarm unit. This warning mechanism can notify the external monitoring personnel in time when the fire hazard initially appears, enabling them to take measures in advance to intervene in the situation that may cause a fire, thereby greatly reducing the probability of fire occurrence. For example, if the temperature rises due to abnormal heating of a certain module inside the charging pile, when the temperature rise rate exceeds the warning rate, the system can quickly issue a warning to remind the relevant personnel to check and handle it, avoiding the continuous rise of temperature and causing a fire.

[0018] II. Emergency Alarm, Quick Response to Fire Risks: When the temperature sensor detects that the temperature reaches the second preset temperature, the system will trigger an emergency alarm signal, and the control chip will transmit the emergency alarm signal to external monitoring devices. Since the first preset temperature is lower than the second preset temperature, this means that when the temperature reaches a higher and more dangerous level, the system can issue an emergency alarm in a timely manner, enabling external monitoring personnel to quickly learn that the charging pile is in a serious dangerous state. This emergency alarm mechanism ensures that in the case of extremely high fire risks, relevant personnel can be notified at the fastest speed so that they can immediately take emergency measures, such as dispatching firefighters to the scene, cutting off the power supply, etc., quickly respond to fire risks, and minimize the losses caused by fires as much as possible.

[0019] III. Dynamically Adjust the Timing Interval to Improve the Precision of Early Warnings: After the temperature detected by the temperature sensor exceeds the first preset temperature, as the detected temperature rises, the preset interval time will linearly and correspondingly shorten. This design improves the precision of early warnings. When the temperature just exceeds the first preset temperature, the heating rate may be relatively slow at the beginning. Using a longer preset interval time for timing and calculating the heating rate can more accurately obtain the heating trend. As the temperature rises, the heating rate may accelerate. At this time, shortening the preset interval time can more timely capture the change in the heating rate, avoiding missing the opportunity when the heating rate exceeds the warning speed due to too long an interval time, and thus more precisely issuing an early warning signal. For example, when the internal module of the charging pile starts to heat up abnormally, using a longer interval time can more comprehensively understand the heating situation; when the temperature rises and the heating intensifies, shortening the interval time can issue an early warning in a timely manner, making the early warning more timely and accurate.

[0020] IV. Multi-Point Detection, Comprehensive Coverage of Risk Areas: The detection points of the temperature sensor at least correspond to the heat-generating parts of the battery module, charging module, and power conversion module of the charging pile. This multi-point detection design can comprehensively cover the key areas inside the charging pile where fire risks may occur. The battery module, charging module, and power conversion module are the parts where heat is concentrated during the operation of the charging pile and are also the main sources of fire hazards. By detecting the temperature of these key parts, abnormal heat generation in each part can be discovered in a timely manner, avoiding fires caused by overheating of a certain part. For example, if the battery module generates abnormal heat due to battery aging or other reasons, the temperature sensor can accurately detect it and issue a corresponding signal, enabling relevant personnel to handle it in a timely manner and prevent fires from occurring.

[0021] V. Enrich Alarm Information to Facilitate Precise Handling: The warning signal and the emergency alarm signal contain data packets of the charging pile's geographical coding, voltage parameters, and device serial numbers. These rich alarm information helps external monitoring personnel handle alarm situations precisely. The geographical coding allows the monitoring personnel to quickly locate the position of the charging pile where the abnormality occurs, so as to promptly dispatch personnel to the scene; the voltage parameters can provide more information about the operating status of the charging pile, helping to determine whether the abnormality is related to the voltage; the device serial number facilitates the identification and management of the charging pile. For example, when the monitoring personnel receive an alarm signal, they can quickly determine the specific location of the charging pile through the geographical coding. Combining the voltage parameters and the device serial number, they can more accurately judge the cause of the fault and take targeted handling measures to improve the handling efficiency.

[0022] VI. Automatic Power-off and Fire Extinguishing to Reduce Fire Losses: The charging pile includes a charging circuit and a built-in fire extinguishing device. When the emergency alarm signal is triggered, the control chip synchronously transmits the power-off signal to the charging circuit of the charging pile and activates the built-in fire extinguishing device of the charging pile. This function can quickly take measures in case of a fire to reduce fire losses. When the temperature reaches the second preset temperature and triggers the emergency alarm signal, the control chip immediately transmits the power-off signal to the charging circuit to cut off the power supply, preventing the fire from further spreading due to continuous power supply. At the same time, the built-in fire extinguishing device is activated to promptly extinguish the fire and minimize the damage to the charging pile and the surrounding environment caused by the fire. For example, in the initial stage of a fire, through automatic power-off and activation of the fire extinguishing device, the fire can be effectively controlled and prevented from spreading to other areas, reducing the losses caused by the fire.

[0023] VII. Data Recording to Provide a Basis for Accident Analysis: A data storage module is also set inside the housing to record the temperature change curve, alarm event logs, and corresponding timestamps. These data records provide an important basis for accident analysis. The temperature change curve can visually display the temperature change situation of the charging pile during operation, helping to analyze the cause and process of abnormal heating; the alarm event logs record information such as the time and type of each alarm. Combining with the timestamps, the occurrence order and time interval of alarm events can be accurately understood, which helps to judge the development trend of fire risks. For example, after a fire accident occurs, by analyzing the temperature change curve and alarm event logs, the key factors and occurrence process leading to the fire can be found, providing a reference for subsequent improvement and preventive measures to avoid similar accidents from happening again. Description of the Drawings

[0024] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0025] Figure 1 Schematic diagram of the connection relationship for the embodiments of the present invention. Detailed implementation manners

[0026] 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 some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present invention.

[0027] As Figure 1 shown, a smart charging pile for a smart city includes a housing of the charging pile, and a temperature sensor, a timer, a control chip, and a wireless alarm unit are arranged inside the housing; when the temperature sensor detects that the temperature exceeds the first preset temperature, the timer performs cyclic timing according to the preset interval time, and the initial temperature and the end temperature are respectively recorded at the start and end of each cyclic timing. The control chip divides the difference between the end temperature and the initial temperature by the preset interval time to obtain the heating rate. When the heating rate is higher than the preset warning rate, a warning signal is triggered, and the control chip transmits the warning signal to an external monitoring device through the wireless alarm unit; when the temperature sensor detects that the temperature reaches the second preset temperature, an emergency alarm signal is triggered, and the control chip transmits the emergency alarm signal to the external monitoring device; the first preset temperature is lower than the second preset temperature.

[0028] As Figure 1As shown, this smart city intelligent charging pile realizes real-time monitoring of temperature and timely warning of abnormal situations through the collaborative work of multiple internal components. The temperature sensor is responsible for detecting the internal temperature of the charging pile. The timer and control chip process and analyze the temperature data. The wireless alarm unit is used to transmit the alarm signal to external monitoring devices, thus forming a complete fire risk monitoring and warning system. The temperature sensor, as the core component for temperature detection, continuously monitors the temperature change inside the charging pile. When the detected temperature exceeds the first preset temperature, it sends a signal to the timer and control chip to start the subsequent heating rate calculation process; when the detected temperature reaches the second preset temperature, it directly sends a signal to the control chip to trigger the emergency alarm process. After the temperature sensor detects that the temperature exceeds the first preset temperature, the timer starts cyclic timing according to the preset interval time. At the start of each cyclic timing, the current initial temperature is recorded; at the end of the timing, the end temperature at this time is recorded. In this way, the time interval and temperature data are provided for calculating the subsequent heating rate.

[0029] As Figure 1 shown, the control chip is the "brain" of the entire system, responsible for receiving the signals sent by the temperature sensor and the timer, and performing corresponding processing and analysis. When receiving the signal that the temperature sent by the temperature sensor exceeds the first preset temperature, as well as the initial temperature and end temperature recorded by the timer, the control chip calculates the heating rate by dividing the difference between the end temperature and the initial temperature by the preset interval time. The calculated heating rate is compared with the preset warning rate. If the heating rate is higher than the preset warning rate, a warning signal is triggered and transmitted to the external monitoring device through the wireless alarm unit. When receiving the signal that the temperature sent by the temperature sensor reaches the second preset temperature, the control chip directly triggers an emergency alarm signal and transmits this signal to the external monitoring device. The main function of the wireless alarm unit is to receive the warning signal and emergency alarm signal sent by the control chip, and transmit these signals to the external monitoring device through wireless communication. In this way, external monitoring personnel can timely understand the temperature abnormal situation of the charging pile so as to take corresponding measures.

[0030] As Figure 1As shown, the preset interval time is set to 5 to 100 seconds. Setting the preset interval time within the range of 5 to 100 seconds is to balance the timeliness and accuracy of temperature monitoring. A shorter interval time (such as 5 seconds) can obtain temperature data more frequently, enabling the system to capture subtle temperature changes more quickly, thereby improving the response speed to potential fire risks. However, overly frequent detection may increase the computational burden and power consumption of the system. A longer interval time (such as 100 seconds) can reduce the computational pressure and power consumption of the system, but may miss some rapid temperature changes. By setting the preset interval time within this reasonable range, the sensitivity of the system to temperature changes can be ensured, and the stable operation of the system can be maintained, ensuring that an early warning signal can be issued in a timely manner when abnormal temperature is detected.

[0031] As Figure 1 shown, when the temperature detected by the temperature sensor exceeds the first preset temperature, as the detected temperature rises, the preset interval time will linearly and correspondingly shorten. When the temperature detected by the temperature sensor exceeds the first preset temperature, as the detected temperature rises, the preset interval time linearly and correspondingly shortens. This design is based on the consideration of the correlation between the temperature rise rate and the fire risk. The faster the temperature rises, the higher the potential fire risk may be. Linearly shortening the preset interval time enables the system to record temperature data more frequently when the temperature rises rapidly, thereby calculating the temperature rise rate more accurately. For example, when the temperature just exceeds the first preset temperature, a longer interval time is used for detection to avoid false alarms caused by temperature fluctuations; while when the temperature rises rapidly, shortening the interval time can capture this change in a timely manner, making the calculation result of the temperature rise rate more reflective of the actual situation and improving the accuracy and timeliness of early warning.

[0032] As Figure 1 shown, the detection points of the temperature sensor at least correspond to the heat-generating parts of the battery module, charging module, and power conversion module of the charging pile. The detection points of the temperature sensor at least correspond to the heat-generating parts of the battery module, charging module, and power conversion module of the charging pile because these modules are the areas where heat is most concentrated during the operation of the charging pile and are also the main sources of fire risk. The battery module generates heat during the charging and discharging process, and the charging module and power conversion module also generate a large amount of heat due to the conversion of electrical energy during operation. By setting detection points at these key heat-generating parts, the temperature changes in these areas can be monitored in real time and accurately, and abnormal heat generation can be detected in a timely manner. Once the temperature of these parts is abnormal, the system can quickly respond, issue an early warning signal, and remind relevant personnel to take measures to prevent the occurrence of fire.

[0033] As Figure 1As shown, the warning signal and the emergency alarm signal contain data packets of the charging pile's geographical code, voltage parameters, and device serial number. The warning signal and the emergency alarm signal containing data packets of the charging pile's geographical code, voltage parameters, and device serial number play an important role. The charging pile's geographical code enables external monitoring personnel to quickly locate the specific location of the abnormal charging pile, so as to promptly dispatch personnel to the scene for handling. The voltage parameters provide important information about the operating status of the charging pile, helping to determine whether the abnormal situation is related to voltage abnormalities, such as whether the temperature rise is caused by overvoltage or undervoltage. The device serial number facilitates the identification and management of the charging pile, making subsequent maintenance and troubleshooting work easier. By including these specific data packets, external monitoring personnel can more comprehensively and accurately understand the alarm situation, improving the processing efficiency and accuracy.

[0034] As Figure 1 shown, the charging pile includes a charging circuit and a built-in fire extinguishing device. When the emergency alarm signal is triggered, the control chip synchronously transmits a power-off signal to the charging circuit of the charging pile and activates the built-in fire extinguishing device of the charging pile. The charging pile includes a charging circuit and a built-in fire extinguishing device. When the emergency alarm signal is triggered, the control chip synchronously transmits a power-off signal to the charging circuit of the charging pile and activates the built-in fire extinguishing device of the charging pile. This design is an emergency response measure in the event of a fire. Cutting off the charging circuit can immediately stop the power supply to the charging pile, preventing the fire from further spreading due to continuous power supply and reducing the damage caused by the fire to the charging pile itself and the surrounding environment. At the same time, activating the built-in fire extinguishing device can promptly extinguish the fire, control the spread of the fire, and reduce the fire loss. Through this automated power-off and fire extinguishing mechanism, actions can be quickly taken in the initial stage of the fire, maximizing the protection of personnel and property safety.

[0035] As Figure 1 shown, a data storage module is also provided inside the housing for recording the temperature change curve, alarm event log, and corresponding timestamps. The data storage module provided inside the housing is used to record the temperature change curve, alarm event log, and corresponding timestamps. The temperature change curve visually shows the temperature change situation of the charging pile during operation. By analyzing these curves, the trend and pattern of temperature change can be understood, and whether there is abnormal heating can be judged. The alarm event log records information such as the time and type of each alarm. Combining with the timestamps, the occurrence order and time interval of alarm events can be accurately understood, which helps to analyze the development process of the fire risk. The recorded data provides an important basis for accident analysis. By analyzing the temperature change curve and the alarm event log, the key factors and occurrence process leading to the fire can be found, providing a reference for subsequent improvement and preventive measures to avoid similar accidents from happening again. At the same time, the data storage module also helps with the maintenance and management of the device, facilitating technicians to query historical data and understand the operating status of the device.

[0036] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on the present invention to solve substantially the same technical problems and achieve substantially the same technical effects are all covered by the protection scope of the present invention.

Claims

1. A smart city intelligent charging pile, including a housing of the charging pile, characterized in that: The housing is provided with a temperature sensor, a timer, a control chip, and a wireless alarm unit; When the temperature sensor detects that the temperature exceeds the first preset temperature, the timer performs cyclic timing according to the preset interval time, and the initial temperature and the end temperature are recorded at the beginning and end of each cyclic timing respectively. The control chip obtains the heating speed by dividing the difference between the end temperature and the initial temperature by the preset interval time. When the heating speed is higher than the preset warning speed, the warning signal is triggered, and the control chip transmits the warning signal to the external monitoring device through the wireless alarm unit; When the temperature sensor detects that the temperature reaches a second preset temperature, an emergency alarm signal is triggered, and the control chip transmits the emergency alarm signal to an external monitoring device; the first preset temperature is lower than the second preset temperature.

2. A smart city intelligent charging pile according to claim 1, characterized in that: The preset interval time is set to 5 to 100 seconds.

3. A smart city intelligent charging pile according to claim 2, characterized in that: When the temperature detected by the temperature sensor exceeds a first preset temperature, the preset interval time will be linearly shortened as the detected temperature increases.

4. The smart city intelligent charging pile according to claim 1, characterized in that: The detection point of the temperature sensor at least corresponds to the heating parts of the battery module, the charging module and the power conversion module of the charging pile.

5. The smart city intelligent charging pile according to claim 1, characterized in that: The early warning signal and emergency alarm signal contain data packets of the charging pile geographic code, voltage parameters and equipment serial number.

6. The smart city intelligent charging pile according to claim 1, characterized in that: The charging pile includes a charging circuit and a built-in fire extinguishing device. When the emergency alarm signal is triggered, the control chip synchronously transmits a power-off signal to the charging circuit of the charging pile and activates the built-in fire extinguishing device of the charging pile.

7. The smart city intelligent charging pile according to claim 1, characterized in that: The housing is also provided with a data storage module for recording temperature change curves, alarm event logs and corresponding timestamps.

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