An intelligent monitoring and control system for box-type substations

Abstract

The present application discloses an intelligent substation measurement and control system, which includes a plurality of measurement and control devices and a measurement and control background. The plurality of measurement and control devices include: a first-level measurement and control device connected to the background system, and a second-level measurement and control device. The measurement and control system involves two interaction processes: sending down and reporting. The process of sending down is as follows: The measurement and control background broadcasts the first data packet to the first-level measurement and control device, and after the first-level measurement and control device determines that it is not its own identification code, it forwards it to the second-level measurement and control device. There are two reporting processes as follows: One is that after the first-level control device determines that the identification code is its own identification code, it sends the second data packet to the measurement and control background. The other is that after the second-level measurement and control device determines that the identification code is its own identification code, it sends the second data packet to the first-level measurement and control device, and the first-level measurement and control device forwards it to the measurement and control background. The system realizes the interaction between the measurement and control background and the first-level and second-level measurement and control devices through networking among multiple levels of measurement and control devices, and thus can realize the monitoring of box-type substations at a long distance.

Description

Technical Field

[0001] This application relates to the field of box-type substations, and in particular to an intelligent box substation measurement and control system. Background Art

[0002] The output voltage of wind turbines on the market is mostly 690V, which needs to be stepped up locally by a box-type transformer and then transmitted to the wind farm step-up substation. Due to the particularity of wind turbines themselves, their layouts are relatively scattered. Each wind farm's turbines are distributed within several kilometers and are far from the centralized step-up substation of the wind farm. It is relatively difficult to manually inspect, monitor, and maintain box-type substations.

[0003] Currently, most box-type substations collect, transmit, and send signals through wired networks. Due to complex terrain and scattered substations, it brings inconvenience to integrated wiring and inspection and maintenance, with a large amount of work and high maintenance costs. When using wireless technologies such as Zigbee for monitoring, due to the short transmission distance, only box-type substations at relatively short distances can be monitored. Summary of the Invention

[0004] This application provides an intelligent box substation measurement and control system. The system forms a network among multiple measurement and control devices to realize the interaction between the measurement and control background and the first-level and second-level measurement and control devices at the remote end, and thus can realize the monitoring of box-type substations at a long distance. Among them, the first-level measurement and control device plays a relay role and can forward the first and second data packets, enabling the measurement and control background to interact with the second-level measurement and control devices at a farther distance, so as to realize the monitoring of the box-type substations corresponding to the second-level measurement and control devices at a farther distance.

[0005] This application provides an intelligent box substation measurement and control system, characterized in that the system includes: a plurality of measurement and control devices and a measurement and control background; wherein, the plurality of measurement and control devices include: a first-level measurement and control device connected to the background system, and a second-level measurement and control device; each first-level measurement and control device is respectively connected to one or more second-level measurement and control devices, and each second-level measurement and control device is connected to a first-level measurement and control device; any measurement and control device is used to monitor a box-type substation;

[0006] The measurement and control background is used to broadcast a first data packet, and the first data packet includes a control instruction and an identification code; and is used to receive a second data packet sent by any one of the measurement and control devices, wherein the second data packet includes collected data and an identification code;

[0007] The first-level measurement and control device is configured to, after receiving the first data packet sent by the measurement and control background, determine whether the identification code of the first data packet is the identification code of the current first-level measurement and control device. If so, execute the action corresponding to the control instruction, obtain the acquisition data, and send a second data packet containing the acquisition data to the measurement and control background. If not, broadcast the first data packet to the second-level measurement and control device connected thereto; and is further configured to, after receiving the second data packet sent by the second-level measurement and control device, forward the second data packet to the measurement and control background when the identification code in the second data packet is the identification code of the measurement and control background;

[0008] The second-level measurement and control device is configured to, after receiving the first data packet forwarded by the first-level measurement and control device, determine whether the identification code of the first data packet is the identification code of the current second-level measurement and control device. If so, execute the action corresponding to the control instruction, obtain the acquisition data, and send the second data packet containing the acquisition data to the first-level measurement and control device connected thereto, where the identification code of the second data packet is the identification code of the measurement and control background. If not, no operation is performed;

[0009] Wherein, the control instruction includes at least one of the following instructions: temperature and humidity measurement indication inside the box-type substation, voltage and current measurement indication.

[0010] As an implementable example, the measurement and control background and each measurement and control device respectively correspond to a unique identification code.

[0011] As an implementable example, the connection mode between the measurement and control background and the first-level measurement and control device includes at least one of wireless connection and wired connection; if the distance between the measurement and control background and the first-level measurement and control device is greater than a first preset distance, wireless connection can be adopted.

[0012] As an implementable example, the connection mode between the first-level measurement and control device and the second-level measurement and control device includes at least one of wireless connection and wired connection; if the distance between the first-level measurement and control device and the second-level measurement and control device is greater than the first preset distance, wireless connection can be adopted.

[0013] As an implementable example, the control instruction further includes: breaker status measurement indication inside the box-type substation, breaker closing control indication, breaker tripping control indication.

[0014] As an implementable example, the measurement and control device includes: a processor module, a storage module, a communication module, a remote control module, a remote signaling module, a temperature and humidity measurement module, a voltage and current measurement module, and a human-machine interaction module;

[0015] The processor module is used to interact with other modules;

[0016] The storage module is used to store the collected data;

[0017] The communication module is used to receive and send data packets; the data packets are the first data packet and the second data packet; and, when it is determined that the identification code of the first data packet is the identification code of the current measurement and control device, the control instruction is sent to the module corresponding to the control instruction;

[0018] The remote control module is used to trip the circuit breaker inside the box-type substation when the received control instruction is a trip indication; and, is used to close the circuit breaker inside the box-type substation when the received control instruction is a closing indication;

[0019] The remote signal module is used to determine the opening and closing states of the circuit breaker inside the box-type substation when the received control instruction is a circuit breaker status measurement instruction;

[0020] The temperature and humidity measurement module is used to measure the temperature and humidity inside the box-type substation when the received control instruction is a temperature and humidity measurement instruction;

[0021] The voltage and current measurement module is used to measure the input and output voltages and currents of the box-type substation when the received control instruction is a voltage and current measurement instruction;

[0022] The human-machine interaction module is used to input parameters, set functions, and display data.

[0023] As an implementable example, the communication module includes a wireless communication module and a wired communication module.

[0024] As an implementable example, the measurement and control device further includes: a time synchronization module; the time synchronization module is used to synchronize time with GPS, Beidou satellites, and the network.

[0025] The technical effects of an intelligent box-type substation measurement and control system provided by this application are as follows:

[0026] In this application, through networking between multiple measurement and control devices, the interaction between the measurement and control background and the first-level and second-level measurement and control devices at the remote end is realized, and then the monitoring of box-type substations at a long distance can be realized. Among them, the first-level measurement and control device plays a relay role, and can realize the forwarding of the first and second data packets, so that the measurement and control background can interact with the second-level measurement and control device at a farther distance, and thus the monitoring of the box-type substation corresponding to the second-level measurement and control device at a farther distance can be realized.

[0027] Moreover, the connection method between the measurement and control device and the measurement and control device, and the measurement and control device and the measurement and control background in this application can be determined according to the actual communication distance and the environment where the substation is located. For example, the wired connection can be based on the network cable or 485 bus, and the wireless connection can be based on 4G, 5G, WIFI, and Lora. A variety of communication methods can meet the actual communication distance requirements, and the communication mode can be set according to the environment where the box-type substation is located and the monitoring needs to avoid interference from the external environment, thereby affecting the remote communication of box-type substation data and the communication of control instructions, improving the accuracy and timeliness of communication between the substation server and the substation, avoiding affecting the stable operation of power supply and distribution, and affecting the power consumption status of the power supply and distribution area.

[0028] Moreover, due to the network structure between the measurement and control device and the measurement and control background, the measurement and control device located between the measurement and control background and the farthest measurement and control device plays a relay role, so that data packets can be reported or sent down layer by layer through the measurement and control devices at all levels, so as to achieve interaction between the measurement and control background and the remote measurement and control device, and then realize the monitoring of the remote box-type substation. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the first networking structure of an intelligent box-type transformer measurement and control system for this application;

[0030] Figure 2 A schematic diagram of a second networking structure of an intelligent box-type transformer measurement and control system for this application;

[0031] Figure 3 This is a schematic diagram of the modules included in the measurement and control device of an intelligent box-type transformer measurement and control system of the present application. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of this application clearer, the following will be combined with the appendix of this application. Figures 1-3 , clearly and completely describe the technical solutions in this application. Obviously, the described embodiments are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0033] The present application provides an intelligent box-type transformer measurement and control system, the system comprising: multiple measurement and control devices and a measurement and control background, wherein the measurement and control background is located in the wind farm booster substation. Since the box-type transformer substations are relatively scattered, each box-type transformer substation is distributed within a few kilometers and is far away from the wind farm booster substation, the measurement and control devices used to monitor the box-type transformer substations are also relatively scattered. Among them, any measurement and control device used to monitor a box-type transformer substation

[0034] In the embodiments of the present application, the measurement and control system provided by the present application may involve multiple networking structures.

[0035] In the first group of networking structures as Figure 1 shown, the first-level measurement and control device is directly connected to the measurement and control background.

[0036] It should be noted that in the embodiments of the present application, the connection method between the measurement and control background and the first-level measurement and control device includes at least one of wireless connection and wired connection, and the connection method can be determined according to the actual communication distance and the environment where the substation is located. Generally, if the distance between the measurement and control background and the first-level measurement and control device is greater than the first preset distance or the terrain of the substation is complex and it is inconvenient to lay communication cables, wireless connection can be used. The first preset distance is generally 1 km. Figure 1 The connection methods and protocols between the measurement and control devices and the measurement and control background in the above are only examples and do not limit the connection methods or connection protocols between the measurement and control devices and the measurement and control background in the present application. For example, the connection method can be wired or wireless. Wired data communication can be carried out through network cables or 485 buses, etc., and wireless communication can be carried out through communication technologies such as 4G, 5G, Lora, and WIFI.

[0037] Based on the above networking structure, the measurement and control system provided by the present application involves the interaction processes of two scenarios: sending down and reporting.

[0038] During the sending-down process:

[0039] The measurement and control background broadcasts the first data packet to all the first-level measurement and control devices. Among them, the first data packet includes a control instruction and an identification code, and the measurement and control background and each measurement and control device respectively correspond to a unique identification code; when the first-level measurement and control device receives the first data packet, it will first judge whether the identification code in the first data packet is its own identification code. If so, it will execute the action corresponding to the control instruction and obtain the acquisition data. If not, it will not execute the operation.

[0040] In the embodiments of the present application, the control instruction at least includes one of the following: indication of temperature and humidity measurement inside the box-type substation, indication of voltage and current measurement, indication of breaker status measurement, breaker closing control instruction, breaker opening control instruction.

[0041] During the reporting process:

[0042] After the first-level measurement and control device executes the action corresponding to the control instruction, it sends a second data packet containing the acquisition data to the measurement and control background

[0043] In the embodiments of the present application, the second data packet includes the collected data and the identification code of the measurement and control background. The collected data may be the temperature and humidity measurement data, voltage and current measurement data inside the box-type substation, and the opening and closing states of the circuit breakers.

[0044] For the intelligent box-type substation measurement and control system provided in the above embodiment, the measurement and control background broadcasts the first data packet to the first-level measurement and control device, controls a certain first-level measurement and control device to execute the control instruction included in the first data packet, obtains the collected data, realizes the remote control of the first-level measurement and control device by the measurement and control background, and further controls the box-type substation at the remote end. After the first-level measurement and control device executes the control instruction, it sends the second data packet including the collected data to the measurement and control background. When the measurement and control background receives the second data packet, it obtains the collected data and realizes the remote monitoring of the box-type substation.

[0045] On the basis of the previous embodiment, the present application provides a second networking method, as Figure 2 shown. Among them, the first-level measurement and control device is connected to the measurement and control background system, and the second-level measurement and control device is connected to the first-level measurement and control device.

[0046] Specifically, each of the first-level measurement and control devices is respectively connected to one or more of the second-level measurement and control devices, and each of the second-level measurement and control devices is connected to one of the first-level measurement and control devices.

[0047] It should be noted that in the embodiments of the present application, the connection method between the first-level measurement and control device and the second-level measurement and control device includes at least one of wireless connection and wired connection, and the connection method can be determined according to the actual communication distance and the environment where the substation is located. Generally, if the distance between the first-level measurement and control device and the second-level measurement and control device is greater than the first preset distance or the terrain of the substation is complex and it is inconvenient to lay communication cables, wireless connection can be adopted. The first preset distance is generally 1 km. Figure 2 The connection method and protocol between the measurement and control devices are only examples, and do not limit the connection method or connection protocol between the measurement and control devices and the measurement and control background in the present application. The connection method between the measurement and control devices can be wired or wireless. For wired connection, network cables or 485 buses can be used for data communication, and for wireless connection, communication technologies such as 4G, 5G, Lora, and WIFI can be used for communication.

[0048] During the distribution process:

[0049] The measurement and control background broadcasts the first data packet to all the first-level measurement and control devices. The first data packet includes a control instruction and an identification code, and the measurement and control background and each measurement and control device correspond to a unique identification code respectively. When the first-level measurement and control device receives the first data packet, it first determines whether the identification code in the first data packet is its own identification code. If so, it executes the action corresponding to the control instruction and obtains the acquisition data. If not, it broadcasts the first data packet to the second-level measurement and control device connected to it.

[0050] Further, when the second-level measurement and control device receives the first data packet sent by the first-level measurement and control device, it first determines whether the identification code in the first data packet is its own identification code. If so, it executes the action corresponding to the control instruction and obtains the acquisition data. If not, it does not perform any operation.

[0051] During the reporting process, there are two cases:

[0052] First, if the first-level measurement and control device executes the action corresponding to the control instruction, it sends a second data packet containing the acquisition data to the measurement and control background. The second data packet includes the identification code of the measurement and control background.

[0053] Second, if the second-level measurement and control device executes the action corresponding to the control instruction, it sends the second data packet containing the acquisition data to the first-level measurement and control device connected to it. The identification code of the second data packet is the identification code of the measurement and control background. When the first-level measurement and control device receives the second data packet and determines that the identification code of the second data packet is the identification code of the measurement and control background, it forwards the second data packet to the measurement and control background.

[0054] It should be noted that in the entire measurement and control system, there can be multiple first-level measurement and control devices. When a certain first-level measurement and control device determines that the identification code is its own identification code, this first-level measurement and control device no longer broadcasts the first data packet to the second-level measurement and control device connected to it. Except for this, other first-level measurement and control devices broadcast the first data packet to the second-level measurement and control devices. Therefore, in the technical solution of this application, the measurement and control devices of the same level do not need to interact with each other.

[0055] The technical effects of the second networking structure of the measurement and control system provided by this application are as follows:

[0056] According to the above embodiments, for the second networking structure provided by the present application, the measurement and control background can broadcast the first data packet to all first-level measurement and control devices, and forward it to the second-level measurement and control devices after the first-level measurement and control devices determine that it is not their own identification code. Thus, the measurement and control background completes the distribution of the first data packet to each level of measurement and control devices. The reporting process includes two cases. First, after the first-level measurement and control device determines that the identification code is its own identification code, it executes the corresponding actions of the control instruction, obtains the collected data, and sends the second data packet containing the collected data to the measurement and control background. Second, after the second-level measurement and control device determines that the identification code is its own identification code, it executes the corresponding actions of the control instruction, obtains the collected data, and sends the second data packet containing the collected data to the first-level measurement and control device. If the first-level measurement and control device determines that the identification code in the second data packet is the background identification code, it forwards the second data packet to the measurement and control background.

[0057] From this, it can be concluded that in the present application, through the networking between multiple levels of measurement and control devices, the interaction between the measurement and control background and the first-level and second-level measurement and control devices at the remote end is realized, and thus the monitoring of the box-type substation at a long distance can be achieved. Among them, the first-level measurement and control device plays a relay role and can forward the first and second data packets, enabling the measurement and control background to interact with the second-level measurement and control devices at a farther distance, and thus the monitoring of the box-type substation corresponding to the second-level measurement and control device at a farther distance can be realized.

[0058] Moreover, in the present application, the connection methods between the measurement and control devices, between the measurement and control devices and the measurement and control background can be determined according to the actual communication distance and the environment where the substation is located. For example, for wired connections, it can be based on network cables or 485 buses, and for wireless connections, it can be based on 4G, 5G, WIFI, Lora. Multiple communication methods can meet the actual communication distance requirements, and the communication mode can be set according to the environment where the box-type substation is located and the monitoring requirements, avoiding interference from the external environment, thereby affecting the remote communication of the box-type substation data and the communication of control instructions, improving the communication accuracy and timeliness between the substation server and the substation, and avoiding affecting the stable operation of power supply and distribution and the power consumption status of the power supply and distribution area.

[0059] Moreover, due to the networking structure between the measurement and control devices and the measurement and control background, the measurement and control devices located between the measurement and control background and the farthest-end measurement and control device play a relay role, so that the data packets can be reported layer by layer or distributed layer by layer through each level of measurement and control devices, thus achieving the interaction between the measurement and control background and the farthest-end measurement and control device, and further realizing the monitoring of the box-type substation at the farthest end.

[0060] Based on the above embodiments, the present application further provides an intelligent substation measurement and control system, which may include a third-level measurement and control device connected to a second-level measurement and control device. Each of the second-level measurement and control devices is respectively connected to one or more of the third-level measurement and control devices, and each of the third-level measurement and control devices is connected to one of the second-level measurement and control devices. Among them, the connection manner between the third-level measurement and control device and the second-level measurement and control device may refer to the connection manner between the aforementioned second-level measurement and control device and the first-level measurement and control device.

[0061] Specifically, in a measurement and control system including a third-level measurement and control device, the process of the second-level measurement and control device sending data to the third-level measurement and control device may refer to the process of the first-level measurement and control device sending data to the second-level measurement and control device, and the process of the third-level measurement and control device reporting data to the second-level measurement and control device may refer to the process of the second-level measurement and control device reporting data to the first-level measurement and control device.

[0062] It should be noted that the present application may further include more levels of measurement and control devices, such as fourth-level and fifth-level measurement and control devices, etc. The present application does not limit the levels included in the intelligent substation measurement and control system. Among them, the connection manner between more levels may refer to the connection manner between the second-level measurement and control device and the first-level measurement and control device, and the sending and reporting processes of more levels may refer to the sending and reporting processes between the first-level measurement and control device and the second-level measurement and control device. The present application will not elaborate on this.

[0063] In the embodiments of the present application, the measurement and control devices included in any level are all the same type of measurement and control device. It's just that the inventor needs to artificially classify the measurement and control devices according to the technical problems to be solved.

[0064] The technical effects of the above embodiment where the measurement and control system includes a third-level measurement and control device are as follows:

[0065] Through the relay of the first-level and second-level measurement and control devices between the measurement and control background and the remote third-level measurement and control device, remote interaction between the measurement and control background and the first-level, second-level, and third-level measurement and control devices at the remote end is realized, and then the monitoring of the box-type substation at a long distance is realized. Among them, the first-level and second-level measurement and control devices play a relay role, and can realize the reception and forwarding of the first and second data packets, so that the measurement and control background can interact with the third-level measurement and control device at a farther distance, and then realize the monitoring of the box-type substation corresponding to the third-level measurement and control device at a farther distance.

[0066] According to the above embodiments, the present application provides a measurement and control device, as Figure 3 shown, the measurement and control device includes: a processor module, a storage module, a communication module, a remote control module, a remote signal module, a temperature and humidity measurement module, a voltage and current measurement module, a human-computer interaction module, and a time synchronization module;

[0067] The processor module can interact with other modules.

[0068] The storage module is used for storing the collected data.

[0069] The communication module, including a wired communication module and a wireless communication module, receives and sends data packets; the data packets are the first data packet and the second data packet; it is also used to judge the identification code; and, after judging it is its own identification code, it is used to send the control instruction to the module corresponding to the control instruction through the processor module. The wireless communication module can adopt, including but not limited to, 4G, 5G, Lora, WIFI. The wired communication module can adopt, including but not limited to, network cable, R485 bus.

[0070] The remote control module is used to trip the circuit breaker inside the box-type substation when the received control instruction is a trip indication; and, it is used to close the circuit breaker inside the box-type substation when the received control instruction is a closing instruction;

[0071] The remote signaling module is used to determine the opening and closing states of the circuit breaker inside the box-type substation when the received control instruction is a circuit breaker status measurement indication; and, it is used to forward the collected circuit breaker status signal to the communication module through the processor module.

[0072] The temperature and humidity measurement module is used to measure the temperature and humidity inside the box-type substation when the received control instruction is a temperature and humidity measurement indication; and, after the measurement is completed, it is used to forward the collected temperature and humidity data to the communication module through the processor module.

[0073] The voltage and current measurement module is used to measure the voltages and currents of two sets of three-phase inputs and outputs of the box-type substation when the received control instruction is a voltage and current measurement indication; and, after the measurement is completed, it is used to forward the collected voltage and current data to the communication module through the processor module.

[0074] The human-machine interaction module is mainly composed of buttons and a liquid crystal display screen; the buttons are used to input parameters and set functions, for example, the time and date, communication method and protocol, etc. can be set; the liquid crystal display screen is mainly used to display data, and can display the temperature and humidity of the current box-type substation, the input and output voltages and currents, the date and time, etc.

[0075] The time synchronization module is used to synchronize time with GPS, Beidou satellites and the network, ensuring that the time error between each measurement and control device in the measurement and control system is very small.

[0076] The measurement and control device in the embodiment of the present application can support the functions supported by the measurement and control devices in the foregoing various embodiments, and the measurement and control background in the embodiment of the present application can support the functions supported by the measurement and control backgrounds in the foregoing various embodiments. Based on the measurement and control device and the measurement and control background provided by the embodiment of the present application, it can support forming any of the above-mentioned networks in practical applications.

[0077] The technical effects of an intelligent box-type substation measurement and control system provided by the present application are as follows:

[0078] In the intelligent substation measurement and control system provided by this application, multiple measurement and control devices can be networked through communication modules. Refer to Figure 2 As shown, through networking among multiple levels of measurement and control devices in this networking mechanism, the interaction between the measurement and control background and the first-level and second-level measurement and control devices at the remote end is realized, and then the monitoring of box-type substations at a long distance can be achieved. Among them, the first-level measurement and control device plays a relay role and can forward the first and second data packets, enabling the measurement and control background to interact with the second-level measurement and control devices at a farther distance, so as to realize the monitoring of the box-type substation corresponding to the second-level measurement and control device at a farther distance. Moreover, the connection methods between the measurement and control devices, between the measurement and control devices and the measurement and control background in this application can be determined according to the actual communication distance and the environment where the substation is located. For example, for wired connection, it can be based on network cables or 485 buses, and for wireless connection, it can be based on 4G, 5G, WIFI, Lora. Multiple communication methods can meet the actual communication distance requirements, and the communication mode can be set according to the environment where the box-type substation is located and the monitoring requirements, so as to avoid being affected by the external environment, thus affecting the remote communication of the data of the box-type substation and the communication of control instructions, improving the communication accuracy and timeliness between the substation server and the substation, and avoiding affecting the stable operation of power supply and distribution and the power consumption status of the power supply and distribution area. Moreover, due to the network structure formed between the measurement and control device and the measurement and control background, the measurement and control devices located between the measurement and control background and the farthest-end measurement and control device play a relay role, so that the data packets can be reported layer by layer or sent layer by layer through each level of measurement and control devices, so as to achieve the interaction between the measurement and control background and the farthest-end measurement and control device, and then realize the monitoring of the box-type substation at the farthest end.

[0079] As described above, this is only the specific implementation manner of this application, but the protection scope of this application is not limited thereto. Any person skilled in the art within the technical scope disclosed by this application can easily think of changes or substitutions, which should all be covered by the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claimed rights.

Claims

1. An intelligent box substation measurement and control system, characterized in that, The system includes: a plurality of measurement and control devices and a measurement and control background; wherein, the plurality of measurement and control devices include: a first-level measurement and control device connected to the background system, and a second-level measurement and control device; each first-level measurement and control device is respectively connected to one or more second-level measurement and control devices, and each second-level measurement and control device is connected to one first-level measurement and control device; any measurement and control device is used to monitor a box-type substation; The measurement and control background is used to broadcast a first data packet, the first data packet includes a control instruction and an identification code; and is used to receive a second data packet sent by any one of the measurement and control devices, wherein the second data packet includes collected data and an identification code; The first-level measurement and control device is used to, after receiving the first data packet sent by the measurement and control background, determine whether the identification code of the first data packet is the identification code of the current first-level measurement and control device, if so, execute the action corresponding to the control instruction, obtain the collected data, and send a second data packet containing the collected data to the measurement and control background, if not, broadcast the first data packet to the second-level measurement and control devices connected thereto; and is further used to, after receiving the second data packet sent by the second-level measurement and control device, when determining that the identification code in the second data packet is the identification code of the measurement and control background, forward the second data packet to the measurement and control background; The second-level measurement and control device is used to, after receiving the first data packet forwarded by the first-level measurement and control device, determine whether the identification code of the first data packet is the identification code of the current second-level measurement and control device, if so, execute the action corresponding to the control instruction, obtain the collected data, and send the second data packet containing the collected data to the first-level measurement and control device connected thereto, the identification code of the second data packet is the identification code of the measurement and control background, if not, then do not perform an operation; Wherein, the control instruction includes at least one of the following instructions: temperature and humidity measurement indication inside the box-type substation, voltage and current measurement indication.

2. The intelligent box-type substation measurement and control system according to claim 1, characterized in that, The measurement and control background and each measurement and control device respectively correspond to a unique identification code.

3. The intelligent substation measurement and control system according to claim 1, wherein The connection mode between the measurement and control background and the first-level measurement and control device includes at least one of wireless connection and wired connection; If the distance between the measurement and control background and the first-level measurement and control device is greater than a first preset distance, wireless connection can be adopted.

4. The intelligent box substation measurement and control system according to claim 1, wherein, The connection mode between the first-level measurement and control device and the second-level measurement and control device includes at least one of wireless connection and wired connection; If the distance between the first-level measurement and control device and the second-level measurement and control device is greater than the first preset distance, wireless connection can be adopted.

5. An intelligent substation measurement and control system according to claim 1, characterized in that, The control instruction further includes: breaker state measurement indication inside the box-type substation, breaker closing control instruction, breaker tripping control instruction.

6. The intelligent box-type substation measurement and control system according to claim 1, wherein, The measurement and control device includes: a processor module, a storage module, a communication module, a remote control module, a remote signal module, a temperature and humidity measurement module, a voltage and current measurement module, and a human-computer interaction module; The processor module is used to interact with other modules; The storage module is used to store the collected data; The communication module is used to receive and send data packets; the data packets are the first data packet and the second data packet; and, when it is determined that the identification code of the first data packet is the identification code of the current measurement and control device, the control instruction is sent to the module corresponding to the control instruction. The remote control module is used to trip the circuit breaker inside the box-type substation when the received control instruction is a tripping indication; and, to close the circuit breaker inside the box-type substation when the received control instruction is a closing indication. The remote signaling module is used to determine the tripping and closing states of the circuit breaker inside the box-type substation when the received control instruction is a circuit breaker state measurement indication. The temperature and humidity measurement module is used to measure the temperature and humidity inside the box-type substation when the received control instruction is a temperature and humidity measurement indication. The voltage and current measurement module is used to measure the input and output voltages and currents of the box-type substation when the received control instruction is a voltage and current measurement indication. The human-machine interaction module is used to input parameters, set functions, and display data.

7. An intelligent substation measurement and control system according to claim 6, characterized in that, The communication module includes a wireless communication module and a wired communication module.

8. The intelligent box-type substation measurement and control system according to claim 1, characterized in that The measurement and control device further includes: a time synchronization module. The time synchronization module is used to synchronize time with GPS, Beidou satellites, and the network.

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