Temperature monitoring system and method for contact type charging of AGV (Automatic Guided Vehicle) equipment

Abstract

The invention provides a temperature monitoring system and method for contact type charging of AGV equipment, and relates to the technical field of charging equipment and charging safety, and the system comprises the steps: additionally arranging a temperature control unit which comprises a temperature control element, a control circuit and an embedded soft program, and enabling the temperature control element to be installed at a charging head with an optimized structure; and the charging pile control management program interacts with the temperature control unit to carry out contact type charging temperature management, and the management mode is executed by coupling the first control logic of the charging pile control management program and the second control logic of the embedded soft program. The technical problems that an existing method generally depends on temperature supervision of a rectifying circuit module, the temperature supervision range is limited, and the fineness and comprehensiveness are insufficient can be solved, the aim of accurately and comprehensively monitoring the temperature can be achieved by additionally arranging the temperature control element, and the charging safety and reliability are remarkably improved.

Description

Technical Field

[0001] The present application relates to the fields of charging equipment technology and charging safety technology, and in particular to a temperature monitoring system and method for contact charging of AGV equipment. Background Art

[0002] Existing temperature control methods for contact charging of AGV (automated guided vehicle) equipment are mostly concentrated inside the charging pile, especially based on the temperature control of the rectifier circuit module. Temperature control elements such as thermistors or temperature control switches are usually buried in the rectifier core to monitor the heating of the rectifier module. Although the rectifier circuit module is indeed one of the main sources of heat, the monitoring range of this temperature control method is relatively limited and fails to cover the entire charging system, especially the contact surface of the charging electrode.

[0003] Among them, since AGV was originally designed for simple charging, the initial voltage level was 24DCV and 48DCV, and the voltage level was also safe. Not much consideration was given to safety, resulting in a relatively small size structure. At present, the technical solution of plane-to-plane contact charging has a certain market scale. With the expansion of the market, early contact charging piles will have abnormal heat generation during charging, resulting in high temperatures. However, since the charging piles and AGV equipment are matched and corresponding, at present, because there are a large number of AGVs in operation, the supporting structure cannot be changed, that is, the smaller and more compact size structure of the original charging system is maintained, and the original contact charging mode is maintained. The contact charging piles need to be upgraded for safety.

[0004] In the contact charging structure, the charging head structure is not convenient for setting up buried temperature control components, and because the thermistor requires a matching control board, it is limited by market inventory and size structure. Therefore, how to add temperature control elements in a small space and how to coordinate the temperature control circuit with the charging pile control program to manage charging safety are technical problems that need to be solved. Summary of the invention

[0005] The purpose of this application is to provide a temperature monitoring system and method for contact charging of AGV equipment, so as to solve the technical problems that the existing temperature monitoring method for contact charging of AGV equipment usually relies on the temperature monitoring of the rectifier circuit module, and has a limited temperature monitoring range and insufficient precision and comprehensiveness.

[0006] In view of the above problems, the present application provides a temperature monitoring system and method for contact charging of AGV equipment.

[0007] In the first aspect, the present application provides a temperature monitoring system for contact charging of AGV equipment, including: a temperature control unit addition module, used to add a temperature control unit, the temperature control unit includes a temperature control element, a control circuit and an embedded software program, the temperature control element is installed on the charging head after structural optimization, wherein the concave and convex interlocking cross-section of the insulating plate and the charging electrode block is the structural optimization position, and the opening of a reserved hole and the addition of a reciprocating elastic distance are the optimization functions; a contact charging temperature management module, used to interact with the charging pile control management program, cooperate with the temperature control unit, and perform contact charging temperature management of the AGV equipment, wherein the management method is executed by coupling the first control logic of the charging pile control management program and the second control logic of the embedded software program; wherein the installation position of the temperature control element includes a first installation position and a second installation position, the first installation position is the charging electrode block, and the second installation position is a preset wire section extending behind the charging electrode block.

[0008] In the second aspect, the present application also provides a temperature monitoring method for contact charging of AGV equipment, including: adding a temperature control unit, the temperature control unit includes a temperature control element, a control circuit and an embedded software program, the temperature control element is installed on the charging head after structural optimization, wherein the concave and convex interlocking cross-section of the insulating plate and the charging electrode block is the structural optimization position, and the opening of a reserved hole and the addition of a reciprocating elastic distance are the optimization functions; an interactive charging pile control management program, cooperating with the temperature control unit, to perform contact charging temperature management of AGV equipment, wherein the management method is executed by coupling the first control logic of the charging pile control management program and the second control logic of the embedded software program; wherein the installation position of the temperature control element includes a first installation position and a second installation position, the first installation position is the charging electrode block, and the second installation position is a preset wire section extending behind the charging electrode block. One or more technical solutions provided in the present application have at least the following technical effects or advantages: By adding a temperature control unit to the charging pile, wherein the temperature control unit includes a temperature control element, a control circuit and an embedded software program, the temperature control element is installed on the charging head after structural optimization, wherein the concave and convex interlocking section of the insulating plate and the charging electrode block is the structural optimization position, and the opening of a reserved hole and the addition of a reciprocating elastic distance are the optimization functions; then the interactive charging pile control management program cooperates with the temperature control unit to perform contact charging temperature management of the AGV equipment, wherein the management method is executed by coupling the first control logic of the charging pile control management program with the second control logic of the embedded software program; wherein the installation position of the temperature control element includes a first installation position and a second installation position, wherein the first installation position is the charging electrode block, and the second installation position is a preset wire section extended after the charging electrode block. In other words, by adding a temperature control element to the key part of the charging electrode block or the wire, and combining the control circuit and the embedded control program to perform charging temperature supervision, the technical goal of accurately and comprehensively monitoring the temperature during the charging process can be achieved, and the safety and reliability of the charging of the AGV equipment can be significantly improved.

[0009] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented according to the contents of the specification, and in order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are specifically cited below. It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present application, nor is it intended to limit the scope of the present application. Other features of the present application will become easy to understand through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the present application or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0011] Figure 1 This is a schematic diagram of the structure of a temperature monitoring system for contact charging of AGV equipment in this application; Figure 2 This is a flow chart of a temperature monitoring method for contact charging of AGV equipment in the present application.

[0012] Description of reference numerals: The temperature control unit is provided with a module 10 and a contact charging temperature management module 20 . DETAILED DESCRIPTION

[0013] This application provides a temperature monitoring system and method for contact charging of AGV equipment, which solves the technical problems that the existing temperature monitoring method for contact charging of AGV equipment usually relies on the temperature monitoring of the rectifier circuit module, and has a limited temperature monitoring range, insufficient precision and comprehensiveness. By adding temperature control elements to the key parts of the charging electrode block or wire, and combining the control circuit and embedded control program to monitor the charging temperature, the technical goal of accurately and comprehensively monitoring the temperature during the charging process can be achieved, significantly improving the safety and reliability of AGV equipment charging.

[0014] Below, the technical solutions in the present application will be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments of the present application. It should be understood that the present application is not limited to the example embodiments described herein. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application. It should also be noted that, for the convenience of description, only the parts related to the present application are shown in the accompanying drawings, rather than all of them.

[0015] For example, please refer to the attached Figure 1 The present application provides a temperature monitoring system for contact charging of AGV equipment, which is applied to the contact charging mode and includes: The temperature control unit additional module 10 is used to add a temperature control unit. The temperature control unit includes a temperature control element, a control circuit and an embedded software program. The temperature control element is installed in the charging head after structural optimization. The concave and convex interlocking cross-section of the insulating plate and the charging electrode block is the structural optimization position, and the opening of a reserved hole and the increase of the reciprocating elastic distance are the optimization functions.

[0016] Specifically, the contact charging mode refers to a charging method in which the AGV device transfers electric energy through physical contact between its charging electrode and the charging head of the charging pile. In the contact charging mode, the electrode of the charging pile and the receiving electrode of the AGV device conduct current through direct contact to achieve electric energy transfer. This charging method usually adopts a block or planar electrode structure so that the current flows into the battery of the AGV device through the contact surface for charging. The contact charging mode is widely used in industrial automation scenarios such as AGV equipment because of its simple structure and convenient use. This mode has efficient charging capabilities and is particularly suitable for the fast charging needs of AGV equipment. Since the contact charging mode relies on physical contact, poor contact or contact surface wear may occur during long-term use, resulting in increased contact resistance, thereby causing local overheating. This local temperature anomaly may cause equipment failure or safety hazards, so it is necessary to monitor it in real time through a temperature supervision system. The temperature supervision system of the present application is applied to the contact charging mode. By real-time monitoring of the temperature of key parts during the charging process, it is ensured that protective measures are taken in time when the temperature is abnormal to prevent high temperature from damaging the equipment or causing safety accidents.

[0017] A temperature control unit is added to the charging pile for contact charging of AGV equipment, wherein the temperature control unit includes a temperature control element, a control circuit and an embedded software program, wherein the concave and convex interlocking cross-section of the insulating plate and the charging electrode block is the structural optimization position, and the opening of a reserved hole and the increase of the reciprocating elastic distance are the optimization functions. The temperature control element can be a temperature control switch or a thermistor, which is responsible for real-time monitoring of the temperature changes of the charging head and its electrode block during the charging process, wherein the temperature control element is installed on the charging head after structural optimization, and the temperature control element can quickly detect the temperature fluctuation of the electrode block, especially the local temperature rise under poor contact or high current, to ensure timely response in case of abnormal heating.

[0018] The control circuit refers to an electronic circuit system that receives temperature signals from temperature control elements (such as temperature control switches or thermistors) and responds to temperature changes according to a preset safety threshold. The temperature control element is closely connected to the control circuit, which is responsible for receiving the temperature data of the temperature control element. When the temperature exceeds the preset safety threshold, the control circuit will automatically execute the corresponding control strategy, such as cutting off the power supply and reducing the current to prevent further temperature rise and ensure the safety of the charging process. Through the operation of the control circuit, the entire system can respond intelligently to temperature changes during the charging process, thereby ensuring the safety and reliability of the equipment.

[0019] The embedded software is the core management software built into the system. It is responsible for processing the data fed back by the temperature control element and judging whether the temperature control operation needs to be performed according to the preset logic. For example, when the temperature exceeds the set upper limit, the program will instruct the control circuit to cut off the power supply or reduce the charging current to protect the safety of the charging equipment. The role of the embedded software is to intelligently analyze and process the temperature data, ensure the overall coordination of the temperature control unit and the charging system, and provide accurate and automated temperature supervision functions; at the same time, the embedded software can also trigger the sound and light alarm system to remind the operator to pay attention to abnormal temperature conditions, ensuring that potential safety issues are discovered and handled in time. By adding a temperature control unit, accurate monitoring and safety management of temperature changes during contact charging can be achieved, effectively preventing safety issues caused by abnormal temperature.

[0020] The contact charging temperature management module 20 is used to interact with the charging pile control management program and cooperate with the temperature control unit to perform contact charging temperature management of the AGV equipment, wherein the management method is executed by coupling the first control logic of the charging pile control management program and the second control logic of the embedded software program.

[0021] Specifically, the charging pile control management program refers to the control program that is responsible for working with the temperature control unit during the contact charging process of the AGV equipment. The program is combined with other control systems of the charging pile to comprehensively manage the temperature during the charging process through interaction with the temperature control element, control circuit and embedded software program to ensure the safety of the charging process.

[0022] By executing the data interaction between the temperature control unit and the charging pile control management program, the contact charging temperature management of the AGV device is completed, that is, the charging pile control management program receives real-time temperature data from the temperature control unit, monitors the temperature changes of the charging head, charging electrode and wire, and when the temperature control element detects the temperature abnormality, the charging pile control program can obtain and process these data in real time. After receiving the temperature abnormality data, the charging pile control management program quickly processes it to determine whether it is necessary to execute protection measures. The judgment is based on the control logic of the embedded software program to ensure rapid response when the temperature exceeds the standard, wherein the contact charging temperature management of the AGV device is performed by coupling the first control logic of the charging pile control management program with the second control logic of the embedded software program. For example, when the temperature exceeds the set threshold, the charging pile control management program will execute the corresponding protection mechanism, such as automatically reducing the charging current, stopping the charging process, or triggering an audible and visual alarm. Through the coordinated cooperation between the interactive charging pile control management program and the temperature control unit, real-time temperature monitoring and management of the contact charging process of the AGV device can be realized, providing an automated protection mechanism for device charging and ensuring safety and efficiency during the charging process.

[0023] The installation position of the temperature control element includes a first installation position and a second installation position, the first installation position is the charging electrode block, and the second installation position is a preset wire section extending behind the charging electrode block.

[0024] Specifically, the installation position of the temperature control element includes a first installation position and a second installation position, wherein the first installation position is the charging electrode block, that is, the temperature control element is installed inside the charging electrode block, which is the core area of ​​the charging current conduction and is directly exposed to the heat generated when the current is conducted, so it can quickly and accurately detect the local temperature rise of the electrode block caused by poor contact or high current conduction. By installing the temperature control element inside the charging electrode block, the system can immediately monitor temperature anomalies at the beginning of the charging process or when the contact is poor, ensuring that protective measures are taken in time.

[0025] The second installation position is a preset wire section extending behind the charging electrode block, that is, the temperature control element is installed on the wire close to the charging electrode block, specifically a preset wire section connected to the electrode block. This position can detect the temperature change of the electrode block through the heat conduction effect and monitor when the high temperature is transferred to the wire. For example, based on design experience, the temperature control element (such as a temperature control switch) can be installed in the wire area within 26 cm behind the charging electrode block. Those skilled in the art can also set the installation distance according to the actual scenario, where the 26 cm range is an empirical value obtained based on the heat conduction effect and wire length optimization in actual applications. This distance is sufficient to ensure that the wire can effectively conduct the temperature of the electrode block and provide sufficient reaction time for the temperature control element. The selection of this area is based on the heat conduction effect to ensure that the temperature control element can detect the temperature change caused by overheating of the electrode block.

[0026] By setting the first installation position and the second installation position, the system can flexibly respond to different environments, adapt to different design requirements and equipment structures, and ensure the comprehensiveness and reliability of temperature supervision.

[0027] By providing a temperature supervision system for contact charging of AGV equipment, the existing temperature supervision method for contact charging of AGV equipment can be solved, which usually relies on the temperature supervision of the rectifier circuit module, and has the technical problems of limited temperature supervision range, insufficient precision and comprehensiveness. By adding a temperature control unit on the charging pile, wherein the temperature control unit includes a temperature control element, a control circuit and an embedded software program, and the temperature control element is installed on the charging head after structural optimization, wherein the concave and convex interlocking section of the insulating plate and the charging electrode block is the structural optimization position, and the opening of the reserved hole and the addition of the reciprocating elastic distance are the optimization functions; then the interactive charging pile control management program cooperates with the temperature control unit to perform contact charging temperature management of the AGV equipment, wherein the management method is executed by coupling the first control logic of the charging pile control management program and the second control logic of the embedded software program; wherein the installation position of the temperature control element includes a first installation position and a second installation position, wherein the first installation position is the charging electrode block, and the second installation position is the preset wire section extending after the charging electrode block. In other words, by adding temperature control elements to the key parts of the charging electrode block or wire, and combining the control circuit and embedded control program to monitor the charging temperature, the technical goal of accurately and comprehensively monitoring the temperature during the charging process can be achieved, significantly improving the safety and reliability of AGV equipment charging.

[0028] In one embodiment, the present application includes: The AGV device contacts the charging pile, and the temperature control unit triggers the working state, wherein the charging pile is a supporting equipment for the AGV device; thermal conduction monitoring is continuously performed, and if the temperature control switch standard is met, the temperature control unit executes the long-closed tripping of the temperature control element and triggers the sound and light alarm instruction; based on the sound and light alarm instruction, combined with the charging pile control management program, the charging termination control of the charging pile is executed in response to the charging pile control circuit.

[0029] Specifically, when the AGV device is in physical contact with the charging head of the charging pile through its charging electrode, the temperature control unit is activated and enters the working state. The temperature control unit includes a temperature control element, a control circuit and an embedded software program, and begins to monitor the temperature in real time during the charging process. The charging pile is a supporting equipment for the AGV device, that is, the charging pile is specially designed and configured for the charging needs of AGV (automatic guided vehicle) equipment. It is compatible with the charging system of the AGV equipment and can provide energy supplement for the AGV equipment through electrode contact. The supporting charging pile is not only highly matched with the AGV equipment, but also can work with the temperature control unit to realize intelligent management of temperature and charging process.

[0030] Then, during the charging process, the temperature control unit continuously monitors the temperature changes of key parts such as the charging electrode block and the charging wire through the temperature control element (such as a thermistor or a temperature control switch). The temperature control unit senses the temperature in the heat conduction process in real time to ensure that when the contact resistance increases or the current is too large, the temperature control element can quickly detect the temperature abnormality. When the temperature control unit detects that the temperature exceeds the preset safety threshold (for example, the temperature of the electrode block or the wire reaches the preset dangerous temperature), the temperature control element (such as a temperature control switch) will perform a long-closed tripping action, that is, disconnect the charging current, and the system will trigger the sound and light alarm instruction, which is used to send a warning signal through the sound and light alarm device to remind the temperature abnormality. While triggering the sound and light alarm, the temperature control unit works in conjunction with the charging pile control management program. The charging pile control management program transmits the instruction to the control circuit. The control circuit responds to the instruction and immediately executes the charging termination operation to stop the power transmission of the charging pile to ensure that the equipment will not be further damaged or cause a safety accident due to high temperature. Through the above temperature monitoring steps, the contact charging process of the AGV equipment can be fully monitored to ensure that if temperature abnormalities occur during the charging process, it can respond quickly and automatically protect, thereby ensuring the safety of the charging process and the stable operation of the equipment.

[0031] Furthermore, the present application also includes the following steps: According to the principle of heat conduction, if the installation position of the temperature control element is the first installation position, the temperature control switch standard is the first temperature value, and a first accuracy range is set; if the installation position of the temperature control element is the second installation position, the temperature control switch standard is the second temperature value, and a second accuracy range is set, wherein the second accuracy range is smaller than the first accuracy range.

[0032] Specifically, according to the principle of heat conduction, the installation position of the temperature control element is closely related to the temperature setting and precision requirements of the temperature control switch. Among them, the cross-sectional area of ​​the wire is usually smaller than the charging electrode block, the heat capacity of the wire is low, and the thermal conductivity efficiency is not as good as the area directly in contact with the electrode block. Therefore, when the temperature control element is installed on the wire, there is heat conduction loss when the heat is transferred to this part. Especially when the temperature of the electrode block is abnormal, the heat needs to be conducted through the wire before it can be sensed by the temperature control element installed on the wire. When the temperature control element is installed in a wire section far away from the electrode block, there will be a certain delay in the heat transfer process, and as the distance increases, the heat transferred to this part will gradually weaken. Therefore, the temperature control element at the wire has a slow response speed and its precision requirements can be relatively low.

[0033] Then, according to the principle of heat conduction, if the installation position of the temperature control element is the first installation position (inside the charging electrode block), the temperature control switch standard is the first temperature value, and the first accuracy range is set. Since the current conduction at this position directly causes heat, the temperature control switch standard is set to the first temperature value, that is, 90 degrees Celsius; in the direct temperature monitoring of the charging electrode block, the temperature changes rapidly and with a large amplitude, so the first accuracy range is set to ±5 degrees Celsius to ensure that when the temperature of the electrode block approaches or exceeds 90 degrees Celsius, the temperature control switch will act quickly to cut off the current or trigger an alarm in time.

[0034] If the installation position of the temperature control element is the second installation position, the temperature control switch standard is the second temperature value, and the second accuracy range is set, wherein the second accuracy range is smaller than the first accuracy range. For example, assuming that the second installation position is within 26 cm behind the charging electrode block, based on the heat conduction effect, the temperature change of the wire is relatively slow, and the heat transfer of the wire itself is not as obvious as the heat directly conducted by the electrode block. Therefore, the temperature control switch standard is set to the second temperature value, i.e., 50 degrees Celsius. Since the temperature change at the wire is relatively slow and the heat conduction efficiency is low, the second accuracy range is set to ±2.5 degrees Celsius to ensure that when the wire temperature is close to 50 degrees Celsius, the temperature control switch can make an appropriate response.

[0035] Furthermore, the present application includes: The optimized charging head structure includes: the cross-sections of the insulating plate and the charging electrode block are concave and convex, wherein the cross-section of the insulating plate is convex and the cross-section of the charging electrode block is concave; a spring is added at the position of the concave and convex cross-section, and a limit screw is added at the charging electrode end, wherein the spring and the limit screw are used to control the reciprocating elastic movement of the charging electrode block within a preset range; a reserved hole is opened in the middle raised part of the groove of the charging electrode block, wherein the reserved hole is the first installation position of the temperature control element.

[0036] Specifically, the charging head structure is optimized, and the optimized charging head structure includes: the insulating plate is designed to be a convex structure with a space in the middle, to ensure that the charging electrode block can fit stably therewith, this design increases the stability of the overall structure and provides a basis for elastic movement; the two sides of the charging electrode block are designed to be deep concave areas, while the middle raised part forms a shallow concave area, which is interlocked with the boss part of the insulating plate. Through this concave-convex interlocking, it is ensured that the electrode block has good contact when conducting electricity, and a tight fit is achieved through the physical shape.

[0037] At the same time, in the concave-convex structure, a spring is added at the position where the charging electrode block and the insulating plate match, and a shallow pit is opened in the convex area of ​​the insulating plate and the deep concave area of ​​the charging electrode block, which is specially used to install the spring. The spring allows the charging electrode block to maintain a certain elastic displacement during the charging process to ensure stable contact between the contact surfaces. A limit groove is set in the outer concave area of ​​the charging electrode, and a screw hole is set in the boss area of ​​the insulating plate to install a limit screw. The limit screw is used to control the movement range of the charging electrode block to prevent it from excessive movement or detachment from the boss structure of the insulating plate. The spring and the limit screw work together to enable the charging electrode block to reciprocate elastically within a certain range to ensure stable and effective electrode contact during the charging process. At the same time, a reserved hole is set in the middle convex part of the charging electrode block. The reserved hole is the first installation position of the temperature control element, allowing the temperature control switch or thermistor to be directly embedded in the charging electrode block to accurately monitor the temperature of the electrode block. When the temperature of the charging electrode block is abnormal during the charging process, the temperature control element can respond quickly to ensure charging safety.

[0038] Through the concave-convex fitting design of the insulating plate and the charging electrode block, as well as the cooperation of the spring and the limit screw, the stable contact and elastic movement of the charging electrode block can be achieved. This design ensures the contact stability during the charging process and reduces the risk of poor contact; by embedding the temperature control element into the reserved hole of the charging electrode block, it can directly sense the temperature change of the electrode block, ensuring that the protection mechanism can be quickly triggered when the temperature is abnormal. The purpose of this innovative design is to optimize the electrode structure of the contact charging of AGV equipment, so that it can improve the stability and service life of the charging system while improving safety. By introducing a special structural design and a reasonable layout of the temperature control element, the problems of temperature management and contact stability during the charging process can be effectively solved.

[0039] Further, the temperature control switch standard is a second temperature value, and a second accuracy range is set. The present application includes: According to the principle of heat conduction, a heat conduction attenuation curve is determined, wherein the heat conduction attenuation curve is the relationship between the conduction distance and the heat loss; based on the heat conduction attenuation curve, the second temperature value and the second precision range are calculated for the second installation position, wherein the second temperature value is negatively correlated with the conduction distance, and the second precision range is negatively correlated with the conduction distance.

[0040] Specifically, the heat conduction attenuation curve is determined according to the principle of heat conduction. The heat conduction attenuation curve represents the situation in which the heat decays as the conduction distance increases during the heat conduction process between the charging electrode block and the wire. This curve reflects the degree of heat loss during the conduction process, that is, the trend of heat gradually decreasing as the conduction distance increases. The heat conduction attenuation curve can be expressed by an exponential attenuation formula.

[0041] Next, according to the heat conduction attenuation curve, the farther the wire position is, the less heat it receives. Therefore, when the temperature control element is installed at the second installation position (the wire section farther away from the electrode block), it is necessary to reasonably adjust its temperature threshold (second temperature value) and accuracy range (second accuracy range), wherein the second temperature value is negatively correlated with the conduction distance, that is, as the conduction distance increases, the heat gradually decays, and the temperature that can be detected by the temperature control element will decrease accordingly, so the second temperature value needs to decrease with the increase of distance; the second accuracy range is negatively correlated with the conduction distance, that is, as the conduction distance increases, the accuracy requirement of the temperature control system should be improved, that is, the accuracy range should gradually decrease, that is, the farther the wire position is from the charging electrode block, the stricter the temperature detection accuracy of the temperature control element needs to be, so that it can accurately sense the temperature change and respond in time. For example, if the second installation position is within 26 cm behind the charging electrode block, the temperature setting of the temperature control element can show a decreasing trend as the distance increases. This decreasing setting is based on the principle of heat conduction, that is, as the distance increases, the heat transfer efficiency decreases, and the heat transferred to a farther position will decrease. Therefore, it is necessary to lower the temperature threshold of the temperature control element accordingly to ensure timely response to temperature abnormalities. For example, assuming that the second installation position is 30 cm behind the charging electrode block, the second temperature value can be set to 48 degrees Celsius, and the second accuracy range can be set to ±2.3 degrees Celsius. By flexibly adjusting the temperature threshold of the temperature control element at different wire positions, the temperature state of the charging electrode block during the charging process can be more accurately reflected, ensuring all-round temperature control monitoring, and effectively preventing safety hazards caused by temperature abnormalities.

[0042] Furthermore, the interactive charging pile control management program cooperates with the temperature control unit to perform contact charging temperature management of the AGV equipment. This application includes: Based on the charging pile control management program and the embedded software program, the first control logic and the second control logic are excavated; the first control logic and the second control logic are logically controlled and coupled to perform contact charging temperature management of the AGV equipment.

[0043] Specifically, based on the charging pile control management program and the embedded software program, the first control logic and the second control logic are deeply explored, wherein the first control logic refers to the underlying rules of the charging pile control management program, including start-stop control, trigger mechanism, underlying rules, etc. For example, start-stop control, one of the core control logics of the charging pile management program is the start and stop control of the charging process. When the AGV device is connected to the charging pile, the control management program triggers the charging start operation, and monitors the operating status of the device in real time during the charging process; trigger mechanism, when the temperature control unit detects a temperature abnormality during the charging process (such as the electrode block temperature exceeds the set threshold), the charging pile management program needs to respond to the signal of the temperature control unit and execute corresponding safety strategies, such as slowing down the charging rate, adjusting the charging current, or triggering the charging termination operation. The second control logic refers to the management logic in the embedded software program, including temperature monitoring and feedback, threshold judgment and triggering, etc. For example, the control logic of the embedded software program focuses on the temperature monitoring and feedback of the temperature control unit. The temperature control element (such as a temperature control switch or a thermistor) is responsible for real-time monitoring of the temperature changes of the charging electrode block and the wire section, and feeding back the data to the embedded software program; the embedded software program determines whether the temperature control element needs to trigger the protection mechanism based on the preset temperature threshold (such as 90 degrees Celsius). Once the temperature exceeds the threshold, the embedded software program will issue corresponding instructions according to the second control logic, such as triggering an audible and visual alarm or sending a signal to the charging pile control program to stop charging.

[0044] Then, the first control logic is coupled with the second control logic through logical control, and the contact charging temperature management of the AGV equipment is performed according to the coupling result, that is, the control management program of the charging pile is coupled with the embedded software program of the temperature control unit. The key to logical coupling is to ensure that the start and stop and trigger mechanism of the charging pile control management program are closely integrated with the temperature feedback logic of the temperature control unit to prevent safety accidents caused by temperature control failure or overheating during the charging process. The coupled system can intelligently control the charging process and realize all-round management of the charging temperature. Through logical coupling, it can be ensured that the charging process can quickly respond to the start and stop control of the charging pile when the temperature control element triggers the protection mechanism. For example, when the embedded software program detects that the temperature exceeds the threshold, it immediately transmits a signal to the charging pile control management program, triggering the charging pile to stop charging, and simultaneously executing safety measures such as sound and light alarms or slowing down the charging rate. Through logical coupling, the collaboration between the embedded software program and the charging pile control management program is more efficient, ensuring that temperature monitoring and charging control are seamlessly connected, thereby achieving more accurate temperature management and charging process control.

[0045] Furthermore, the embedded software program includes a control module and a calculation module. After continuously performing heat conduction monitoring, the present application includes: If the monitored temperature value meets the temperature control switch standard, the temperature control element is controlled to execute long-closed tripping and generate the sound and light alarm instruction; based on the continuous monitoring of the temperature value, the temperature rise acceleration is calculated, and if the temperature rise acceleration exceeds the limit, an out-of-limit alarm message is generated.

[0046] Specifically, when the temperature control element detects that the temperature exceeds the preset safety threshold (for example, more than 90 degrees Celsius), the temperature control switch will change from the normally closed state to the tripped state (i.e., disconnecting the circuit), thereby stopping charging or performing a protective operation to prevent further temperature rise; at the same time, the temperature control element will trigger the system's sound and light alarm, which prompts the temperature abnormality during the charging process through light or sound. Then the temperature value is continuously monitored, and the temperature rise acceleration is calculated based on the continuously monitored temperature value. The temperature rise acceleration refers to the change of the rate of temperature change over time. By continuously monitoring the temperature data fed back by the temperature control element, the acceleration of temperature rise can be calculated, that is, the rate of temperature change per unit time. When the temperature rise acceleration exceeds the preset threshold (i.e., the temperature rises too fast), the system will identify it as an abnormal situation and generate an over-limit alarm message. For example, under normal circumstances, the temperature rise should be stable. If the temperature rises rapidly in a short period of time, it indicates that there is a potential risk, such as poor contact or abnormal current. By generating an over-limit alarm message, potential safety risks can be warned in advance before the temperature reaches a dangerous level, giving operators more reaction time, and intervention measures can be taken in advance to prevent the temperature from continuing to rise.

[0047] In summary, the temperature monitoring method for contact charging of AGV equipment provided in this application has the following technical effects: By adding a temperature control unit to the charging pile, wherein the temperature control unit includes a temperature control element, a control circuit and an embedded software program, the temperature control element is installed on the charging head after structural optimization, wherein the concave and convex interlocking section of the insulating plate and the charging electrode block is the structural optimization position, and the opening of a reserved hole and the addition of a reciprocating elastic distance are the optimization functions; then the interactive charging pile control management program cooperates with the temperature control unit to perform contact charging temperature management of the AGV equipment, wherein the management method is executed by coupling the first control logic of the charging pile control management program with the second control logic of the embedded software program; wherein the installation position of the temperature control element includes a first installation position and a second installation position, wherein the first installation position is the charging electrode block, and the second installation position is a preset wire section extended after the charging electrode block. In other words, by adding a temperature control element to the key part of the charging electrode block or the wire, and combining the control circuit and the embedded control program to perform charging temperature supervision, the technical goal of accurately and comprehensively monitoring the temperature during the charging process can be achieved, and the safety and reliability of the charging of the AGV equipment can be significantly improved.

[0048] Embodiment 2: Based on the temperature monitoring system for contact charging of AGV equipment in the above embodiment, the present application also provides a temperature monitoring method for contact charging of AGV equipment, please refer to the attached Figure 2 ,include: A temperature control unit is added, and the temperature control unit includes a temperature control element, a control circuit and an embedded software program. The temperature control element is installed on the charging head after structural optimization, wherein the concave and convex interlocking cross-section of the insulating plate and the charging electrode block is the structural optimization position, and the opening of a reserved hole and the increase of a reciprocating elastic distance are the optimization functions; an interactive charging pile control management program cooperates with the temperature control unit to perform contact charging temperature management of the AGV equipment, wherein the management method is executed by coupling the first control logic of the charging pile control management program and the second control logic of the embedded software program; wherein the installation position of the temperature control element includes a first installation position and a second installation position, wherein the first installation position is the charging electrode block, and the second installation position is a preset wire section extending behind the charging electrode block.

[0049] Furthermore, the temperature supervision method for contact charging of AGV equipment also includes: The AGV device contacts the charging pile, and the temperature control unit triggers the working state, wherein the charging pile is a supporting device for the AGV device; the thermal conductivity monitoring is continuously performed, and if the temperature control switch standard is met, the temperature control unit executes the long-closed tripping of the temperature control element and triggers the sound and light alarm instruction; based on the sound and light alarm instruction, combined with the charging pile control management program, the charging termination control of the charging pile is executed in response to the charging pile control circuit. Further, the temperature supervision method for contact charging of AGV equipment also includes: According to the principle of heat conduction, if the installation position of the temperature control element is the first installation position, the temperature control switch standard is the first temperature value, and a first accuracy range is set; if the installation position of the temperature control element is the second installation position, the temperature control switch standard is the second temperature value, and a second accuracy range is set, wherein the second accuracy range is smaller than the first accuracy range.

[0050] Furthermore, the temperature supervision method for contact charging of AGV equipment also includes: The cross-sections of the insulating plate and the charging electrode block are concave-convex and fit together, wherein the cross-section of the insulating plate is convex and the cross-section of the charging electrode block is concave; a spring is added at the position of the concave-convex fitting cross-section, and a limit screw is added at the charging electrode end, wherein the spring and the limit screw are used to control the reciprocating elastic movement of the charging electrode block within a preset range; a reserved hole is provided in the middle raised portion of the groove of the charging electrode block, wherein the reserved hole is the first installation position of the temperature control element.

[0051] Furthermore, the temperature supervision method for contact charging of AGV equipment also includes: According to the principle of heat conduction, a heat conduction attenuation curve is determined, wherein the heat conduction attenuation curve is the relationship between the conduction distance and the heat loss; based on the heat conduction attenuation curve, the second temperature value and the second precision range are calculated for the second installation position, wherein the second temperature value is negatively correlated with the conduction distance, and the second precision range is negatively correlated with the conduction distance.

[0052] Furthermore, the temperature supervision method for contact charging of AGV equipment also includes: Based on the charging pile control management program and the embedded software program, the first control logic and the second control logic are excavated; the first control logic and the second control logic are logically controlled and coupled to perform contact charging temperature management of the AGV equipment.

[0053] Furthermore, the temperature supervision method for contact charging of AGV equipment also includes: If the monitored temperature value meets the temperature control switch standard, the temperature control element is controlled to execute long-closed tripping and generate the sound and light alarm instruction; based on the continuous monitoring of the temperature value, the temperature rise acceleration is calculated, and if the temperature rise acceleration exceeds the limit, an out-of-limit alarm message is generated.

[0054] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The temperature monitoring system and specific examples for contact charging of AGV equipment in the aforementioned embodiment one are also applicable to the temperature monitoring method for contact charging of AGV equipment in this embodiment. Through the aforementioned detailed description of the temperature monitoring system for contact charging of AGV equipment, those skilled in the art can clearly understand the temperature monitoring method for contact charging of AGV equipment in this embodiment, so for the sake of brevity of the specification, it will not be described in detail here.

[0055] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

[0056] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application belong to the scope of the present application and its equivalent technology, the present application is also intended to include these modifications and variations.

Claims

1. A temperature monitoring system for contact charging of AGV equipment, characterized in that: Applied in contact charging mode, the system includes: A temperature control unit additional module is used to add a temperature control unit, the temperature control unit includes a temperature control element, a control circuit and an embedded software program, the temperature control element is installed in the charging head after structural optimization, wherein the concave and convex fitting section of the insulating plate and the charging electrode block is the structural optimization position, and the opening of the reserved hole and the increase of the reciprocating elastic distance are the optimization functions; A contact charging temperature management module, which is used to interact with the charging pile control management program and cooperate with the temperature control unit to perform contact charging temperature management of the AGV device, wherein the management method is executed by coupling the first control logic of the charging pile control management program with the second control logic of the embedded software program; The installation position of the temperature control element includes a first installation position and a second installation position, the first installation position is the charging electrode block, and the second installation position is a preset wire section extending behind the charging electrode block.

2. The temperature monitoring system for contact charging of AGV equipment according to claim 1, characterized in that: Conduct contact charging temperature management for AGV equipment, including: The AGV device contacts the charging pile, and the temperature control unit triggers the working state, wherein the charging pile is a supporting device for the AGV device; Continuously perform heat conduction monitoring. If the temperature control switch standard is met, the temperature control unit executes the long-closed tripping of the temperature control element and triggers an audible and visual alarm instruction; Based on the sound and light alarm instruction, combined with the charging pile control management program, the charging termination control of the charging pile is executed in response to the charging pile control circuit.

3. The temperature monitoring system for contact charging of AGV equipment according to claim 1, characterized in that: Also includes: According to the principle of heat conduction, if the installation position of the temperature control element is the first installation position, the temperature control switch standard is the first temperature value, and the first accuracy range is set; If the installation position of the temperature control element is the second installation position, the temperature control switch standard is the second temperature value, and a second accuracy range is set, wherein the second accuracy range is smaller than the first accuracy range.

4. The temperature monitoring system for contact charging of AGV equipment according to claim 1, characterized in that: The optimized charging head structure includes: The cross-sections of the insulating plate and the charging electrode block are concave-convex fit, wherein the cross-section of the insulating plate is convex and the cross-section of the charging electrode block is concave; A spring is added at the position of the concave-convex interlocking cross section, and a limit screw is added at the charging electrode end, wherein the spring and the limit screw are used to control the reciprocating elastic movement of the charging electrode block within a preset range; A reserved hole is provided in the middle raised portion of the charging electrode block groove, wherein the reserved hole is the first installation position of the temperature control element.

5. The temperature monitoring system for contact charging of AGV equipment according to claim 3, characterized in that: The temperature control switch standard is a second temperature value, and a second accuracy range is set, including: According to the heat conduction principle, a heat conduction attenuation curve is determined, wherein the heat conduction attenuation curve is the relationship between the conduction distance and the heat loss; Based on the heat conduction attenuation curve, the second temperature value and the second accuracy range are calculated for the second installation position, wherein the second temperature value is negatively correlated with the conduction distance, and the second accuracy range is negatively correlated with the conduction distance.

6. The temperature monitoring system for contact charging of AGV equipment according to claim 1, characterized in that: The interactive charging pile control management program cooperates with the temperature control unit to perform contact charging temperature management of the AGV equipment, including: Based on the charging pile control management program and the embedded software program, mining the first control logic and the second control logic; The first control logic and the second control logic are logically coupled to perform contact charging temperature management of the AGV device.

7. The temperature monitoring system for contact charging of AGV equipment according to claim 2, characterized in that: The embedded software program includes a control module and a calculation module, and after continuously performing heat conduction monitoring, includes: If the monitored temperature value meets the temperature control switch standard, the temperature control element is controlled to perform long-closed tripping and the sound and light alarm instruction is generated; Based on the continuously monitored temperature value, the temperature rise acceleration is calculated, and if the temperature rise acceleration exceeds the limit, an over-limit alarm message is generated.

8. A temperature monitoring method for contact charging of AGV equipment, characterized in that: The method is implemented by a temperature supervision system for contact charging of AGV equipment according to any one of claims 1 to 7, comprising: A temperature control unit is added, the temperature control unit includes a temperature control element, a control circuit and an embedded software program, the temperature control element is installed in the charging head after structural optimization, wherein the concave and convex fitting section of the insulating plate and the charging electrode block is the structural optimization position, and the opening of the reserved hole and the increase of the reciprocating elastic distance are the optimization functions; An interactive charging pile control management program cooperates with the temperature control unit to perform contact charging temperature management of the AGV device, wherein the management method is executed by coupling the first control logic of the charging pile control management program with the second control logic of the embedded software program; The installation position of the temperature control element includes a first installation position and a second installation position, the first installation position is the charging electrode block, and the second installation position is a preset wire section extending behind the charging electrode block.

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