Communication device, circuit breaker and method for identifying circuit breaker and automatically allocating address of circuit breaker

Abstract

The invention relates to the field of circuit breakers, and provides a communication device, a circuit breaker and a method for identifying the circuit breaker and automatically assigning an address of the circuit breaker, the communication device comprises at least one connector, the connector is provided with a first pin group and a second pin group, the first pin group comprises a first pin and a second pin which are electrically isolated, the second pin group comprises a third pin and a fourth pin which are electrically isolated, the first pin is connected with the third pin and a first level, the second pin is connected with the fourth pin and a second level, and the second level is higher than the first level; the state acquisition chip is connected with the second pin and the fourth pin; and the control chip is connected with the state acquisition chip and is connected with the connector through a communication bus. Through innovative hardware design, whether the circuit breaker is inserted into the connector or not is quickly identified, and a communication link between the system control chip and the circuit breaker can be immediately established after successful identification.

Description

Technical Field

[0001] The present application relates to the field of circuit breakers, and in particular to a communication device, a circuit breaker, and a method for identifying a circuit breaker and automatically assigning an address thereof. Background Art

[0002] In modern data centers, industrial automation, smart grids and other fields, the demand for efficient, reliable and fast-response power management systems is growing. In these systems, circuit breakers, as key components, are not only responsible for circuit protection and control, but also undertake the important task of real-time data exchange with upper-level management systems to achieve remote monitoring, fault warning, automatic control and other functions.

[0003] However, traditional power management systems often rely on software-level polling or manual configuration to identify whether circuit breakers have been correctly installed and connected to the system. In the process of distributing power to base stations by the communication power distribution unit (DCDU), these methods have obvious limitations: software polling increases the burden on the system CPU and reduces the overall response speed, and manual configuration is not only inefficient but also prone to errors, increasing the complexity and cost of system maintenance.

[0004] In addition, as the scale of data centers expands and the level of intelligence increases, higher requirements are placed on the real-time, accuracy and reliability of power management systems. Traditional identification and communication establishment methods can no longer meet these requirements, and a more efficient, direct and reliable solution is urgently needed. Summary of the invention

[0005] In order to be able to more quickly identify whether a circuit breaker has been correctly installed and connected to a system through hardware, the present application provides a communication device, a circuit breaker, and a method for identifying a circuit breaker and automatically assigning an address thereof.

[0006] In a first aspect, the present application provides a communication device for a circuit breaker, which adopts the following technical solution: A communication device for a circuit breaker, wherein the communication device comprises: at least one connector, the connector being provided with a first pin group and a second pin group, the first pin group comprising a first pin and a second pin which are electrically isolated, the second pin group comprising a third pin and a fourth pin which are electrically isolated, the first pin connecting the third pin and a first level, the second pin connecting the fourth pin and a second level, the second level being higher than the first level, the circuit breaker being provided with a fifth pin and a sixth pin, the fifth pin being used to connect the first pin group, when the fifth pin is connected to the first pin group, the first pin and the second pin are in a conducting state, the sixth pin being used to connect the second pin group, when the sixth pin is connected to the second pin group, the third pin and the fourth pin are in a conducting state; A state acquisition chip, the state acquisition chip is connected to the second pin and the fourth pin, and is used to acquire and transmit the level states of the second pin and the fourth pin; A control chip, wherein the control chip is connected to the status acquisition chip and is used to receive the level status transmitted by the status acquisition chip, the control chip is connected to the connector via a communication bus, and when the level status is the second level, the control chip communicates with the circuit breaker via the communication bus.

[0007] By adopting the above technical solution, the communication device realizes automatic detection and identification of the circuit breaker connection status through the innovative design of the electrical isolation pin group, and can quickly establish a communication link without human intervention. This not only improves the automation level of the system, but also significantly reduces communication failures caused by human errors, and enhances the reliability and stability of the system. In addition, the design also simplifies the wiring complexity of the system and reduces installation and maintenance costs.

[0008] More importantly, through innovative hardware design, the above technical solution can quickly identify whether a circuit breaker is plugged into the connector, and can immediately establish a communication link between the system control chip and the circuit breaker after successful identification. This innovation not only greatly improves the system response speed and reduces the burden on the control chip, but also simplifies the system configuration process and reduces human errors, thereby significantly improving the overall performance and reliability of the power management system.

[0009] Preferably, the communication bus is an RS485 bus, the connector is provided with a positive RS485 pin and a negative RS485 pin, and the positive RS485 pin and the negative RS485 pin are connected to the control chip via the RS485 bus.

[0010] By adopting the above technical solutions, RS485 bus has been widely used in communication devices with its long-distance and high-speed data transmission capabilities. RS485 bus supports multi-point communication, can stably transmit data in complex industrial environments, and effectively resists electromagnetic interference and signal attenuation. This feature makes RS485 bus an indispensable communication method in power management systems, ensuring efficient and reliable communication between circuit breakers and control centers.

[0011] Preferably, the connector is further provided with a group address pin and an intra-group address pin, the group address pin is connected to the control chip, and the intra-group address pin is used to connect to the circuit breaker.

[0012] By adopting the above technical solution, the group address and the intra-group address pins are set, and the communication device supports group management of multiple circuit breakers. This group management method enables the system to flexibly configure the communication parameters and control strategies of the circuit breakers. At the same time, it can also intelligently allocate circuit breakers and connectors to improve the overall performance and efficiency of the system.

[0013] Preferably, the connector is also provided with a power pin, and the power pin is used for an external power supply.

[0014] By adopting the above technical solutions, the design of the power pin provides a stable power supply for the communication device, ensuring that the equipment can operate continuously and stably in a complex and changeable industrial environment. This design not only improves the reliability and durability of the equipment, but also reduces the risk of communication failures caused by power fluctuations or interruptions. In addition, the external power supply method also makes it easier for users to choose the appropriate power type and specifications according to actual needs, improving the flexibility and scalability of the system.

[0015] Preferably, the state acquisition chip is a shift register, and the shift register is provided with a parallel data input pin, and the parallel data input pin is used to connect the second pin and the fourth pin.

[0016] By adopting the above technical solution and using a shift register as a state acquisition chip, the communication device can efficiently collect and transmit pin level state information. The shift register has the advantages of simple structure, low power consumption, high reliability, etc., and can operate stably in harsh industrial environments. The parallel data input terminal of the shift register allows multiple data bits to be received at the same time. In applications that require processing large amounts of data or high-speed data transmission, this parallel processing method is more efficient than serial input. In addition, since the data is input in parallel, the state acquisition chip can simultaneously receive and process multiple data bits within one clock cycle, thereby significantly improving the speed of data transmission and processing.

[0017] In a second aspect, the present application provides a method for identifying a circuit breaker and automatically assigning its address by using the communication device as described in the first aspect, using the following technical solution: A method for identifying a circuit breaker and automatically assigning an address thereof by using the communication device according to any one of the first aspects, wherein the method comprises: Step S1: connecting the circuit breaker to the connector; Step S2: When the level state is a first level, the control chip successfully identifies the circuit breaker, and the control chip assigns an address to the circuit breaker; when the level state is a second level, the control chip fails to successfully identify the circuit breaker.

[0018] By adopting the above technical solution, the method realizes fast and reliable communication between the circuit breaker and the system by automatically detecting the connection status of the circuit breaker and assigning an address to it. This method not only reduces manual intervention and configuration time, but also improves work efficiency and accuracy.

[0019] Preferably, the connector is further provided with a group address pin and an intra-group address pin, the group address pin is connected to the control chip, and the intra-group address pin is used to connect to the circuit breaker.

[0020] By adopting the above technical solution, the concepts of group address and intra-group address are introduced in the method of automatic address allocation, so that the system can manage circuit breakers in groups according to different application scenarios and requirements. This group management method helps to formulate and execute more refined power management strategies and control strategies. At the same time, it also enables the system to respond to different communication needs and changes more flexibly, improving the adaptability and scalability of the system.

[0021] Preferably, the communication bus is an RS485 bus, the connector is provided with a positive RS485 pin and a negative RS485 pin, and the positive RS485 pin and the negative RS485 pin are connected to the control chip via the RS485 bus.

[0022] By adopting the above technical solution, the RS485 bus adopts a differential working mode, that is, the voltage difference between the two signal lines is used to represent the signal. This method can effectively suppress common-mode interference and improve the anti-interference ability of communication. The RS485 interface design adopts a balanced transmission and differential reception structure. This design further enhances its ability to resist common-mode interference, making RS485 communication more stable and reliable in industrial environments and other noisy environments.

[0023] Preferably, in step S2, the control chip assigns an address to the circuit breaker through the following steps: the control chip identifies the circuit breaker, the control chip assigns an identity identification address code to the circuit breaker, and the identity identification address code is used to establish an address communication link between the circuit breaker and the control chip; The control chip broadcasts instructions to the circuit breaker according to a preset cycle; If the circuit breaker is in a pre-allocated address state, the circuit breaker receives the instruction and sends a response message to the control chip, wherein the response message includes a first temporary address of the circuit breaker; The control chip detects whether the first temporary address is occupied; The control chip sends an address setting command to the circuit breaker, where the address setting command includes the actual address and the second temporary address of the circuit breaker. The circuit breaker parses the actual address and the second temporary address according to the address setting command. If the first temporary address and the second temporary address are the same, the circuit breaker modifies the pre-allocated address state to the allocated address state, and uses the actual address for subsequent communication.

[0024] By adopting the above technical solution, the detailed address allocation steps ensure that each circuit breaker can be correctly identified and assigned an address. This method ensures the accuracy and reliability of address allocation through strict steps such as identity recognition, command broadcasting, response reception, and address setting. At the same time, it also supports the management and maintenance of temporary addresses and actual addresses of circuit breakers, avoiding address conflicts and duplicate allocation problems. This refined address allocation method not only improves the stability and reliability of the system, but also makes the system more convenient for subsequent maintenance and management.

[0025] In a third aspect, the present application provides a circuit breaker, which adopts the following technical solution: A circuit breaker, wherein the circuit breaker is connected to the communication device as described in the first aspect.

[0026] By adopting the above technical solution and connecting the communication device, the circuit breaker achieves fast and reliable communication with the system. This communication method not only supports remote monitoring and control functions, but also enables the circuit breaker to receive and execute instructions and parameter settings issued by the system in real time. This intelligent communication method improves the efficiency and accuracy of power management and reduces the need and cost of manual intervention.

[0027] In summary, this application realizes the rapid identification of whether a circuit breaker is plugged into the connector through innovative hardware design, and can immediately establish a communication link between the system control chip and the circuit breaker after successful identification. This innovation not only greatly improves the system response speed and reduces the burden on the control chip, but also simplifies the system configuration process and reduces human errors, thereby significantly improving the overall performance and reliability of the power management system. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic structural diagram of an embodiment of a communication device for a circuit breaker of the present application; Figure 2 for Figure 1 A pin diagram of a connector of the embodiment shown in FIG. Figure 3 A schematic diagram of the structure of a socket for interconnecting a circuit breaker and a connector in the present application; and Figure 4 This is a flowchart of an embodiment of step S2 in the method of identifying a circuit breaker through a communication device and automatically assigning its address in the present application.

[0029] Figure numerals: 1. connector; 2. control chip; 3. status acquisition chip. DETAILED DESCRIPTION

[0030] With reference to the accompanying drawings and specific embodiments, the structure, composition, characteristics and advantages of the communication device, circuit breaker and method for identifying circuit breakers and automatically assigning addresses according to the present application will be described below in an exemplary manner. However, all descriptions should not be used to form any limitations on the present application.

[0031] In addition, for any single technical feature described or implied in the embodiments mentioned in this document, or any single technical feature displayed or implied in the accompanying drawings, this application still allows for continued arbitrary combination or deletion between these technical features (or their equivalents) without any technical obstacles, and thus it should be considered that these more embodiments according to this application are also within the scope of the description of this document.

[0032] It should also be noted that the terms "disposed" and the like should be understood in a broad sense, for example, it can be fixedly connected, detachably connected, or integrated; it can be directly connected, or indirectly connected through an intermediate medium. Unless otherwise clearly defined, those skilled in the art can understand the specific meanings of the above terms in this application according to specific circumstances.

[0033] Figure 1 1 is a schematic diagram of a structure of an embodiment of a communication device for a circuit breaker of the present application. The circuit breaker of this embodiment (not shown in the figure) can be a communication 1U intelligent circuit breaker. Figure 1 As can be seen from the figure, the communication device may include a connector 1, a state acquisition chip 3 and a control chip 2. The connector 1 is provided with a first pin group and a second pin group. The first pin group may include a first pin and a second pin that are electrically isolated. The first pin may be Figure 1 Pin 5 of connector 1, the second pin can be Figure 1 The second pin group includes a third pin and a fourth pin which are electrically isolated, and the third pin can be Figure 1 Pin 6 of connector 1, the fourth pin can be Figure 1 The first pin is connected to the third pin and the first level, and the second pin is connected to the fourth pin and the second level. The second level is higher than the first level. In this embodiment, the first pin and the third pin can be grounded, that is, the first level can be Figure 1 The middle connector 1 is connected to GND, and the second level can be a VCC high level.

[0034] Figure 2 for Figure 1 A pin diagram of a connector of an embodiment shown in FIG. Figure 2 Figure (a) is Figure 1 The front pin diagram of the connector of the embodiment shown in FIG. Figure 2 Figure (b) is Figure 1 FIG. 1 is a schematic diagram of the back pins of the connector of the embodiment shown in FIG. Figure 2 It can be understood from Figures (a) and (b) that the electrically isolated pins 5 and 9 in Figure (a) constitute the aforementioned first pin group, and the electrically isolated pins 6 and 10 in Figure (b) constitute the aforementioned second pin group.

[0035] The circuit breaker may be provided with a fifth pin and a sixth pin. In this embodiment, the connector 1 may be a narrow gold-plated connector at the edge of a printed circuit board, which is usually referred to as a gold finger. Usually, the circuit breaker and the connector 1 each have their own pins, and the two need to be connected through a socket. Specifically, a pin of the circuit breaker is inserted into a hole on one side of the socket, and a pin of the connector 1 is inserted into another hole on the other side of the socket corresponding to the aforementioned hole, and the pin of the circuit breaker and the pin of the connector 1 will be electrically connected.

[0036] In this embodiment, the fifth pin is used to connect the first pin group, and the sixth pin is used to connect the second pin group. When the fifth pin is connected to the first pin group, that is, when the fifth pin of the circuit breaker is inserted into the socket, and the first pin and the second pin (a total of two pins) in the first pin group of the connector 1 that were originally in an electrically isolated state are inserted into the hole corresponding to the hole into which the fifth pin is inserted, since the first pin and the second pin are both connected to the fifth pin, the first pin and the second pin that were originally in an electrically isolated state will be in a conductive state; when the sixth pin of the circuit breaker is inserted into the socket, and the third pin and the fourth pin (a total of two pins) in the second pin group of the connector 1 that were originally in an electrically isolated state are inserted into the hole corresponding to the hole into which the sixth pin is inserted, since the third pin and the fourth pin are both connected to the sixth pin, the third pin and the fourth pin that were originally in an electrically isolated state will be in a conductive state.

[0037] In this way, whether the circuit breaker is successfully connected to the above connector 1 will be reflected in whether the first pin and the second pin are conductive and whether the third pin and the fourth pin are conductive. Specifically, when the circuit breaker is not successfully connected to the connector 1, the second pin and the fourth pin connected to each other will be in the second level state, that is, the high level state; when the circuit breaker is successfully connected to the connector 1, the second pin will be connected to the first pin, and the fourth pin will be connected to the third pin. Since the first pin and the fourth pin connected to each other are always in the first level state (grounded state), the second pin and the fourth pin will be pulled down at this time and are in the first level state. Therefore, whether the circuit breaker is successfully connected to the connector 1 will be judged by the level state of the second pin and the fourth pin.

[0038] from Figure 1 It can also be seen that the communication device may further include a state acquisition chip 3 and a control chip 2. The state acquisition chip 3 is connected to the second pin and the fourth pin, and is used to collect and transmit the level state of the second pin and the fourth pin. The control chip 2 is connected to the state acquisition chip 3, and is used to receive the level state transmitted by the state acquisition chip 3. At the same time, the control chip 2 is connected to the connector 1 through the communication bus, and when the level state is the second level, the control chip 2 communicates with the circuit breaker through the communication bus.

[0039] In this embodiment, the state acquisition chip 3 may be a shift register, and the shift register is provided with parallel data input pins, that is, Figure 1The parallel data input pin is used to connect the second pin and the fourth pin of the state acquisition chip 3. The parallel data input terminal of the shift register allows multiple data bits to be received simultaneously. In applications that require processing of large amounts of data or high-speed data transmission, this parallel processing method is more efficient than serial input. In addition, since the data is input in parallel, the state acquisition chip 3 can simultaneously receive and process multiple data bits within one clock cycle, thereby significantly improving the speed of data transmission and processing.

[0040] In this embodiment, the control chip 2 may be a CPU, and the communication bus may be an RS485 communication bus. The RS485 bus has been widely used in communication devices for its long-distance, high-speed data transmission capability. The connector 1 is provided with an RS485 positive pin and an RS485 negative pin, corresponding to Figure 1 Pin 7 and Pin 8 in the power management system. The positive RS485 pin and the negative RS485 pin of the connector 1 are connected to the control chip 2 through the RS485 bus. The RS485 bus supports multi-point communication, can stably transmit data in complex industrial environments, and effectively resists electromagnetic interference and signal attenuation. This feature makes the RS485 bus an indispensable communication method in the power management system, ensuring efficient and reliable communication between the circuit breaker and the control center.

[0041] Specifically, when the circuit breaker is not successfully connected to the connector 1, the first pin and the third pin will be in the second level state, and when the circuit breaker is successfully connected to the connector 1, the second pin and the fourth pin will be in the first level state. The state acquisition chip 3 will continuously acquire the level state of the second pin and the fourth pin, and continuously transmit the level state to the control chip 2. After receiving the level state, the control chip 2 will judge the level state. If the level state is the second level state, the control chip 2 will not take any action. If the level state is the first level state, the control chip 2 will detect that the circuit breaker is successfully connected to the connector 1, and then communicate with the circuit breaker through the communication bus, and assign an address to the circuit breaker during the communication process.

[0042] The communication device realizes automatic detection and identification of the connection status of the circuit breaker through the innovative design of the electrical isolation pin group, and can quickly establish a communication link without human intervention. This not only improves the automation level of the system, but also significantly reduces communication failures caused by human errors, and enhances the reliability and stability of the system. In addition, the design also simplifies the wiring complexity of the system and reduces installation and maintenance costs. Through innovative hardware design, the above technical solution realizes the rapid identification of whether a circuit breaker is plugged into the connector 1, and can immediately establish a communication link between the system control chip 2 and the circuit breaker after successful identification. This innovation not only greatly improves the system response speed and reduces the burden on the control chip 2, but also simplifies the system configuration process and reduces human errors, thereby significantly improving the overall performance and reliability of the power management system.

[0043] from Figure 1 As can be seen from the figure, the connector 1 is also provided with a group address pin, an internal address pin and a power pin for an external power supply. The power pin may include a positive power pin and a negative power pin, corresponding to Figure 1 The bank address pins correspond to pins 1 and 2 of connector 1. Figure 1 Pin 3 of connector 1, the group address pin is connected to control chip 2, and the address pin within the group corresponds to Figure 1 Pin 4 of connector 1 in the middle, the group address pins are used to connect to the circuit breaker. Specifically, the group address pins are used to receive the group address pin signals: These signal lines are used to specify the high-order portion of the address, that is, the "group" or "segment" of the address. Different address areas or modules can be accessed through different group address combinations. The number of group address pin signals determines the number of address groups that the system can distinguish. After the address group is determined, the group address pin signals are used to specify the specific address within the group. These signal lines represent the low-order portion of the address and are used for more refined addressing within the selected group.

[0044] The communication device supports group management of multiple circuit breakers. This group management method enables the system to flexibly configure the communication parameters and control strategies of the circuit breakers. At the same time, it can also intelligently allocate circuit breakers and connectors 1 to improve the overall performance and efficiency of the system.

[0045] In this embodiment, the circuit breaker can be a communication U1 intelligent circuit breaker. After the communication power distribution system (DCDU) is plugged into the communication 1U intelligent circuit breaker, it can automatically identify the existence of the communication 1U intelligent circuit breaker through the hardware circuit. The communication power distribution system will automatically assign an identity identification address code to the identified communication 1U intelligent circuit breaker, and establish a communication link through RS485 to realize the communication power distribution system's function of distributing power to the base station.

[0046] The circuit breaker and connector 2 are connected through a socket. Table 1 is a table of contact pin numbers and signal definitions between the circuit breaker and connector. Figure 3 It is a schematic diagram of the structure of the socket that connects the circuit breaker and the connector to each other in this application. name 1 Positive power supply 2 Negative pole of power supply 3 Group Address 4 Group Address 5 The first pin group is connected to the fifth pin 6 The second pin group is connected to the sixth pin 7 RS485 positive 8 RS485 negative terminal

[0047] Table 1 Combining Table 1 and Figure 3 It can be understood that the space occupied by the first pin group and the second pin group of the connector 1 is exactly the same as that of the remaining pins, and can be adapted to the fifth pin and the sixth pin of the circuit breaker.

[0048] The present application also proposes a method for identifying a circuit breaker and automatically assigning an address thereof by using the aforementioned communication device, the method may include the following steps: Step S1: Connect the circuit breaker to the connector 1; Step S2: when the level state is the first level, the control chip 2 successfully identifies the circuit breaker, and the control chip 2 assigns an address to the circuit breaker; when the level state is the second level, the control chip 2 fails to successfully identify the circuit breaker.

[0049] Figure 4 FIG. 1 is a flow chart of an embodiment of step S2 in the method of identifying a circuit breaker and automatically assigning its address through a communication device of the present application. Figure 4 As can be seen from the figure, the control chip 2 can assign an address to the circuit breaker through the following steps: Step S21: assigning an identity identification address code. In step S21, the control chip 2 identifies the circuit breaker and assigns an identity identification address code to the circuit breaker. The identity identification address code is used to establish an address communication link between the circuit breaker and the control chip 2. In this embodiment, each circuit breaker inserted into the connector 1 is assigned a unique identity identification address code by the control chip 2 when it is connected to the system. This address code is the unique identifier of the circuit breaker in the network.

[0050] Step S22: Periodically broadcast instructions. In step S22, the control chip 2 broadcasts instructions to the circuit breaker according to a preset period. In this embodiment, the instructions may include query, configuration or other control commands.

[0051] Step S23: Pre-allocated address state and response. In step S23, if the circuit breaker is in the pre-allocated address state, the circuit breaker will receive the instruction and send a response message to the control chip 2, and the response message includes the first temporary address of the circuit breaker; specifically, if a circuit breaker is in the pre-allocated address state (i.e., the final address has not been allocated yet), it will receive the instruction issued by the control chip 2 and send a response message including its temporary address to the control chip 2.

[0052] Step S24: Address occupation detection. In step S24, the control chip 2 detects whether the first temporary address is occupied. After receiving the response from the circuit breaker, the control chip 2 detects whether the temporary address has been occupied by other devices. This is a key step to ensure the uniqueness of the address and avoid conflicts.

[0053] Step S25: Address setting and status update. In step S25, the control chip 2 sends an address setting command to the circuit breaker. The address setting command includes the actual address and the second temporary address of the circuit breaker. The circuit breaker parses the actual address and the second temporary address according to the address setting command. If the first temporary address and the second temporary address are the same, the circuit breaker modifies the pre-allocated address state to the allocated address state and uses the actual address for subsequent communication.

[0054] The whole process realizes the recognition of the circuit breaker status through hardware functions, and realizes the function of automatic address allocation of the control chip. This not only improves the automation level of the system, but also reduces the errors and complexity of manual configuration. In this embodiment, the detailed address allocation steps ensure that each circuit breaker can be correctly identified and assigned an address. This method ensures the accuracy and reliability of address allocation through strict steps such as identity recognition, command broadcasting, response reception and address setting. At the same time, it also supports the management and maintenance of the temporary address and actual address of the circuit breaker, avoiding the problem of address conflict and repeated allocation. This refined address allocation method not only improves the stability and reliability of the system, but also enables the system to carry out subsequent maintenance and management work more conveniently.

[0055] The present application also provides a circuit breaker, wherein the circuit breaker is connected to the aforementioned communication device.

[0056] By connecting to the communication device, the circuit breaker achieves fast and reliable communication with the system. This communication method not only supports remote monitoring and control functions, but also enables the circuit breaker to receive and execute instructions and parameter settings issued by the system in real time. This intelligent communication method improves the efficiency and accuracy of power management and reduces the need and cost of manual intervention.

[0057] In summary, this application realizes the rapid identification of whether a circuit breaker is plugged into connector 1 through innovative hardware design, and can immediately establish a communication link between the system control chip and the circuit breaker after successful identification. This innovation not only greatly improves the system response speed and reduces the burden on the control chip, but also simplifies the system configuration process and reduces human errors, thereby significantly improving the overall performance and reliability of the power management system.

[0058] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A communication device for a circuit breaker, It is characterized in that The communication device comprises: at least one connector, the connector being provided with a first pin group and a second pin group, the first pin group comprising a first pin and a second pin which are electrically isolated, the second pin group comprising a third pin and a fourth pin which are electrically isolated, the first pin connecting the third pin and a first level, the second pin connecting the fourth pin and a second level, the second level being higher than the first level, the circuit breaker being provided with a fifth pin and a sixth pin, the fifth pin being used to connect the first pin group, when the fifth pin is connected to the first pin group, the first pin and the second pin are in a conducting state, the sixth pin being used to connect the second pin group, when the sixth pin is connected to the second pin group, the third pin and the fourth pin are in a conducting state; A state acquisition chip, the state acquisition chip is connected to the second pin and the fourth pin, and is used to acquire and transmit the level states of the second pin and the fourth pin; A control chip, wherein the control chip is connected to the status acquisition chip and is used to receive the level status transmitted by the status acquisition chip, the control chip is connected to the connector via a communication bus, and when the level status is the second level, the control chip communicates with the circuit breaker via the communication bus.

2. The communication device according to claim 1, It is characterized in that The communication bus is an RS485 bus, and the connector is provided with a positive RS485 pin and a negative RS485 pin, and the positive RS485 pin and the negative RS485 pin are connected to the control chip via the RS485 bus.

3. The communication device according to claim 1, It is characterized in that The connector is further provided with a group address pin and an intra-group address pin, the group address pin is connected to the control chip, and the intra-group address pin is used to connect to the circuit breaker.

4. The communication device according to claim 1, It is characterized in that The connector is also provided with a power pin, and the power pin is used for an external power source.

5. The communication device according to claim 1, It is characterized in that The state acquisition chip is a shift register, and the shift register is provided with a parallel data input pin, and the parallel data input pin is used to connect the second pin and the fourth pin.

6. A method for identifying a circuit breaker and automatically assigning its address by means of a communication device as claimed in claim 1, It is characterized in that The method comprises: Step S1: connecting the circuit breaker to the connector; Step S2: When the level state is a first level, the control chip successfully identifies the circuit breaker, and the control chip assigns an address to the circuit breaker; when the level state is a second level, the control chip fails to successfully identify the circuit breaker.

7. The method according to claim 6, It is characterized in that The connector is further provided with a group address pin and an intra-group address pin, the group address pin is connected to the control chip, and the intra-group address pin is used to connect to the circuit breaker.

8. The method according to claim 6, It is characterized in that The communication bus is an RS485 bus, the connector is provided with a positive RS485 pin and a negative RS485 pin, and the positive RS485 pin and the negative RS485 pin are connected to the control chip via the RS485 bus.

9. The method according to claim 8, It is characterized in that In step S2, the control chip assigns an address to the circuit breaker through the following steps: The control chip identifies the circuit breaker, and the control chip assigns an identity identification address code to the circuit breaker, and the identity identification address code is used to establish an address communication link between the circuit breaker and the control chip; The control chip broadcasts instructions to the circuit breaker according to a preset cycle; If the circuit breaker is in a pre-allocated address state, the circuit breaker receives the instruction and sends a response message to the control chip, wherein the response message includes a first temporary address of the circuit breaker; The control chip detects whether the first temporary address is occupied; The control chip sends an address setting command to the circuit breaker, where the address setting command includes the actual address and the second temporary address of the circuit breaker. The circuit breaker parses the actual address and the second temporary address according to the address setting command. If the first temporary address and the second temporary address are the same, the circuit breaker modifies the pre-allocated address state to the allocated address state, and uses the actual address for subsequent communication.

10. A circuit breaker, It is characterized in that The communication device according to claim 1 is connected to the circuit breaker.

Images