Off-grid system automatic detection device
By designing an automatic detection device for off-grid systems and using a variety of instruments and processors to achieve automated detection, the problems of incomplete and low-efficiency detection are solved, and real-time monitoring and stable operation are achieved.
Patent Information
- Application Number
- CN202422680121.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-05
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-11-05
AI Technical Summary
Existing off-grid system detection methods are not comprehensive, have a low degree of automation, are inefficient, consume a lot of manpower, and are difficult to meet actual needs.
An automatic detection device for off-grid systems is designed, which includes instruments such as an insulation resistance tester, a voltmeter, a multimeter, a frequency meter, and an internal resistance tester. The device obtains readings and determines the operating status through a processor, and combines a light-controlled time controller and a communication device to achieve automatic detection and monitoring.
It realizes real-time and comprehensive automatic detection and monitoring of off-grid systems, reduces labor costs, and ensures stable operation of the system.
Smart Images
Figure CN223377419U_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of off-grid system detection, and in particular to an automatic detection device for an off-grid system. Background Art
[0002] With the widespread use of renewable energy, off-grid systems have gained increasing attention in many scenarios, such as power supply in remote areas and emergency power supply. However, the stability and reliability of off-grid systems are crucial, requiring effective detection and monitoring.
[0003] Currently, existing off-grid system detection methods often suffer from problems such as incomplete detection, low automation, low detection efficiency, and high labor consumption, making them difficult to meet actual needs. Therefore, it is necessary to design an automatic off-grid system detection device that can accurately detect various parameters of the off-grid system in real time, promptly identify potential problems, and ensure the stable operation of the off-grid system. Summary of the Invention
[0004] In view of this, an embodiment of the present disclosure provides an automatic detection device for an off-grid system, which at least partially solves the problems existing in the prior art.
[0005] An embodiment of the present disclosure provides an off-grid system automatic detection device, which is installed in an off-grid system and is characterized in that the device includes:
[0006] An insulation resistance tester, connected between the solar panel and the ground, for measuring the insulation resistance between the solar panel and the ground; a voltmeter, connected between the positive and negative poles of the solar panel, for measuring the open circuit voltage between the positive and negative poles of the solar panel; a first multimeter, connected between the positive and negative poles of the controller, for measuring the charging current and voltage of the controller; a second multimeter, connected between the positive and negative poles of the DC load, for measuring the discharge current and voltage of the controller; a third multimeter, connected between the positive and negative poles of the inverter a fourth multimeter, connected between the positive and negative poles of the AC load, for measuring the output voltage and current of the inverter; a frequency meter, connected to the inverter, for measuring the frequency output by the inverter; an internal resistance tester, connected to the positive and negative poles of the battery, for measuring the internal resistance of the battery; a processor, connected to the insulation resistance tester, the voltmeter, the first multimeter, the second multimeter, the third multimeter, the fourth multimeter, the frequency meter and the internal resistance tester, for obtaining readings of the connected instruments and determining the operating status of the off-grid system according to a preset program.
[0007] According to a specific implementation of the embodiment of the present disclosure, the device further includes a plurality of light-controlled time controllers for controlling the opening and closing of the circuit according to preset conditions.
[0008] According to a specific implementation of the embodiment of the present disclosure, the first light-controlled time controller is connected between the solar panel and the insulation resistance tester; the second light-controlled time controller is connected between the solar panel and the voltmeter; the third light-controlled time controller is connected between the controller and the first multimeter; the fourth light-controlled time controller is connected between the DC load and the second multimeter; the fifth light-controlled time controller is connected between the inverter and the frequency meter, and the sixth light-controlled time controller is connected between the AC load and the fourth multimeter; the seventh light-controlled time controller is connected between the inverter and the third multimeter; and the eighth light-controlled time controller is connected between the battery and the internal resistance tester.
[0009] According to a specific implementation of the embodiment of the present disclosure, the device further includes: a communication device, which is connected to the processor and is used to transmit the instrument readings and judgment results received by the processor to the monitoring platform via a wireless network.
[0010] According to a specific implementation of an embodiment of the present disclosure, the monitoring platform includes a control system and a display device, which is used to receive the location coordinates, numbering information, instrument readings and operating status of the off-grid system in real time.
[0011] According to a specific implementation of the embodiment of the present disclosure, the monitoring platform receives operating status data of multiple off-grid systems simultaneously.
[0012] According to a specific implementation of the embodiment of the present disclosure, the processor further includes an alarm system for sending an alarm message to the monitoring platform via a communication device when it is determined that the operating state of the off-grid system is abnormal.
[0013] According to a specific implementation of an embodiment of the present disclosure, the processor is connected to the controller and is configured to transmit a command to the controller by matching a preset instruction of the processor according to the type of the abnormality when the processor determines that the operating state of the off-grid system is abnormal.
[0014] The off-grid system automatic detection device in the embodiment of the present disclosure can effectively realize real-time and comprehensive automatic detection and monitoring of the off-grid system, and set the detection frequency according to the actual situation of each region, effectively reducing labor costs and providing strong guarantees for the stable operation of the off-grid system. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 A schematic diagram of an off-grid system automatic detection device provided in an embodiment of the present disclosure; DETAILED DESCRIPTION
[0016] The embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.
[0017] The following describes the embodiments of the present disclosure through specific examples, and those skilled in the art can easily understand other advantages and effects of the present disclosure from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all of the embodiments. The present disclosure can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present disclosure. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present disclosure.
[0018] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on this disclosure, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects described herein can be used to implement an apparatus and / or practice a method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this apparatus and / or practice this method.
[0019] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present disclosure. The illustrations only show components related to the present disclosure and are not drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated.
[0020] Additionally, in the following description, specific details are provided to provide a thorough understanding of the examples. However, one skilled in the art will appreciate that the aspects described can be practiced without these specific details.
[0021] In order to achieve automatic detection of off-grid systems while reducing manpower investment, an embodiment of the present application provides an off-grid system automatic detection device. The off-grid system automatic detection device provided in the embodiment of the present application will be described in detail below with reference to the accompanying drawings.
[0022] like Figure 1As shown, the off-grid system automatic detection device proposed in the embodiment of the present disclosure is installed in the off-grid system, and the device includes: an insulation resistance tester, which is connected to the solar panel and the ground to measure the insulation resistance between the solar panel and the ground; a voltmeter, which is connected between the positive and negative poles of the solar panel to measure the open circuit voltage between the positive and negative poles of the solar panel; a first multimeter ( Figure 1 The first multimeter is connected between the positive and negative poles of the controller to measure the charging current and voltage of the controller; the second multimeter ( Figure 1 The second multimeter is connected between the positive and negative poles of the DC load to measure the discharge current and voltage of the controller; the third multimeter ( Figure 1 The third multimeter is connected between the positive and negative poles of the inverter to measure the input voltage and current of the inverter; the fourth multimeter ( Figure 1 In the multimeter 4, the fourth multimeter is connected between the positive and negative poles of the AC load to measure the output voltage and current of the inverter; a frequency meter is connected to the inverter to measure the frequency output by the inverter; an internal resistance tester is connected to the positive and negative poles of the battery to measure the internal resistance of the battery; a processor is connected to the insulation resistance tester, the voltmeter, the first multimeter, the second multimeter, the third multimeter, the fourth multimeter, the frequency meter and the internal resistance tester to obtain readings of the connected instruments and determine the operating status of the off-grid system according to a preset program.
[0023] In an embodiment of the present disclosure, the device further includes a plurality of light-controlled time controllers for controlling the opening and closing of the circuit according to preset conditions.
[0024] In the embodiment of the present disclosure, the first light-controlled time controller ( Figure 1 The middle light-controlled time controller 1) is connected between the solar panel and the insulation resistance tester; the second light-controlled time controller ( Figure 1 The light-controlled time controller 2) is connected between the solar panel and the voltmeter; the third light-controlled time controller ( Figure 1 The middle light-controlled time controller 3) is connected between the controller and the first multimeter; the fourth light-controlled time controller ( Figure 1 The middle light-controlled time controller 4) is connected between the DC load and the second multimeter; the fifth light-controlled time controller ( Figure 1 The light-controlled time controller 5) is connected between the inverter and the frequency meter, and the sixth light-controlled time controller ( Figure 1 The middle light-controlled time controller 6) is connected between the AC load and the fourth multimeter; the seventh light-controlled time controller ( Figure 1 The middle light-controlled time controller 7) is connected between the inverter and the third multimeter; the eighth light-controlled time controller ( Figure 1 The Zhongguang time controller 8) is connected between the battery and the internal resistance tester.
[0025] More specifically, the light-controlled time controller is a multifunctional advanced time controller that integrates the functions of light control and ordinary time controller. It can automatically connect or disconnect the circuit according to the preset light intensity and preset time. For example, when the light intensity is within the preset threshold and within the preset detectable time period, the first light-controlled time controller connects the voltmeter between the positive and negative poles of the solar panel to measure the insulation resistance between the solar panel and the ground. Based on this characteristic, the off-grid system automatic detection device proposed in the embodiment of the present disclosure can be applied to the automatic detection of off-grid systems in various places. It is only necessary to set the light-controlled time controller separately according to the local light time period and the time period when the load needs to run. Without subsequent operation, the operation data of the off-grid system can be obtained in real time to achieve automatic control.
[0026] In an embodiment of the present disclosure, the device further includes: a communication device, which is connected to the processor and is used to transmit the meter readings and determination results received by the processor to the monitoring platform via a wireless network.
[0027] In an embodiment of the present disclosure, the monitoring platform simultaneously receives operating status data of multiple off-grid systems.
[0028] In the embodiment of the present disclosure, the monitoring platform includes a control system and a display device, which is used to receive the location coordinates, numbering information, instrument readings and operating status of the off-grid system in real time.
[0029] In the embodiment of the present disclosure, the processor further includes an alarm system for sending an alarm message to a monitoring platform via a communication device when it is determined that the operating state of the off-grid system is abnormal.
[0030] More specifically, after the alarm system sends an alarm message to the monitoring platform, the staff of the monitoring platform can find the nearest staff based on the location coordinates and number information of the abnormal off-grid system and notify them for maintenance; the alarm system can also be installed with a buzzer while sending an alarm message to the monitoring platform. When the off-grid system is detected to be operating abnormally, the buzzer will be used to alert the surrounding staff.
[0031] In an embodiment of the present disclosure, the processor is connected to the controller and is configured to transmit a command to the controller by matching a preset instruction of the processor according to the type of the abnormality when the processor determines that the operating state of the off-grid system is abnormal.
[0032] More specifically, the processor obtains the instrument readings in real time and determines whether the readings of the insulation resistance tester, voltmeter, first multimeter, second multimeter, third multimeter, fourth multimeter, frequency meter and internal resistance tester are within a preset normal range according to a preset program.
[0033] The processor also calculates the efficiency of the inverter through the input power and output power of the inverter according to a preset program. The input power can be calculated by the voltage and current read by the multimeter of the inverter, and the output power can be calculated by the voltage and current read by the multimeter at the AC load end.
[0034] The off-grid system automatic detection device in the embodiment of the present disclosure can effectively realize real-time and comprehensive automatic detection and monitoring of the off-grid system, and set the detection frequency according to the actual situation of each region, effectively reducing labor costs and providing strong guarantees for the stable operation of the off-grid system.
[0035] The above description is merely a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.
Claims
1. An off-grid system automatic detection device, which is installed in the off-grid system, characterized in that: The device comprises: An insulation resistance tester, connected between the solar panel and the ground, for measuring the insulation resistance between the solar panel and the ground; a voltmeter, connected between the positive and negative poles of the solar panel, for measuring the open circuit voltage between the positive and negative poles of the solar panel; a first multimeter, connected between the positive and negative poles of the controller, for measuring the charging current and voltage of the controller; a second multimeter, connected between the positive and negative poles of the DC load, for measuring the discharge current and voltage of the controller; a third multimeter, connected between the positive and negative poles of the inverter a fourth multimeter, connected between the positive and negative poles of the AC load, for measuring the output voltage and current of the inverter; a frequency meter, connected to the inverter, for measuring the frequency output by the inverter; an internal resistance tester, connected to the positive and negative poles of the battery, for measuring the internal resistance of the battery; a processor, connected to the insulation resistance tester, the voltmeter, the first multimeter, the second multimeter, the third multimeter, the fourth multimeter, the frequency meter and the internal resistance tester, for obtaining readings of the connected instruments and determining the operating status of the off-grid system according to a preset program.
2. The off-grid system automatic detection device according to claim 1, characterized in that: The device also includes a plurality of light-controlled time controllers for controlling the opening and closing of the circuit according to preset conditions.
3. The off-grid system automatic detection device according to claim 2, characterized in that: The first light-controlled time controller is connected between the solar panel and the insulation resistance tester; the second light-controlled time controller is connected between the solar panel and the voltmeter; the third light-controlled time controller is connected between the controller and the first multimeter; the fourth light-controlled time controller is connected between the DC load and the second multimeter; the fifth light-controlled time controller is connected between the inverter and the frequency meter; the sixth light-controlled time controller is connected between the AC load and the fourth multimeter; the seventh light-controlled time controller is connected between the inverter and the third multimeter; and the eighth light-controlled time controller is connected between the battery and the internal resistance tester.
4. The off-grid system automatic detection device according to claim 1, characterized in that: The device further comprises: a communication device connected to the processor, and configured to transmit the meter readings and determination results received by the processor to the monitoring platform via a wireless network.
5. The off-grid system automatic detection device according to claim 4, characterized in that: The monitoring platform includes a control system and a display device, which is used to receive the location coordinates, numbering information, instrument readings and operating status of the off-grid system in real time.
6. The off-grid system automatic detection device according to claim 5, characterized in that: The monitoring platform receives operating status data of multiple off-grid systems simultaneously.
7. The off-grid system automatic detection device according to claim 1, characterized in that: The processor also includes an alarm system for sending an alarm message to a monitoring platform via a communication device when it is determined that the operating state of the off-grid system is abnormal.
8. The off-grid system automatic detection device according to any one of claims 1 to 7, characterized in that: The processor is connected to the controller and is used to match the preset instructions of the processor according to the type of the abnormality to transmit a command to the controller when the processor determines that the operating state of the off-grid system is abnormal.