A wireless monitoring system for freezing stations based on monitoring nodes with self-generated and self-supplied power supply

Abstract

The present invention discloses a freezing station wireless monitoring system based on monitoring nodes with self-generated and self-supplied power supply, including freezing station equipment and remote monitoring equipment; the freezing station equipment includes a station controller, a station monitoring platform, a 5G gateway in the freezing station, a station gateway, several monitoring nodes and a station wireless network, and the remote monitoring equipment includes a remotely monitored 5G gateway and a remote monitoring platform; the station controller is respectively connected to the station monitoring platform, the 5G gateway, and the station gateway; the station gateway realizes wireless communication connection with each monitoring node in the station through the station wireless network; the 5G gateway in the freezing station is connected to a cloud server through a 5G network, and the cloud server realizes data interaction with the remote monitoring platform through the remotely monitored 5G gateway. The remote monitoring platform can set or adjust the power supply system working strategy of each monitoring node through the 5G network, or the on-site operator can set or adjust the power supply system working strategy of each monitoring node through the station monitoring platform.

Description

Technical Field

[0001] The present invention relates to the field of automated monitoring technology for industrial construction sites, and in particular to automated monitoring applications for construction sites such as freezing stations, highway construction, factory construction, and infrastructure construction in remote areas. Specifically, it is a wireless monitoring system for freezing stations based on monitoring nodes with self-generated and self-supplied power supplies. Background Art

[0002] At present, the conditions of construction sites such as freezing stations, highway construction, factory construction, and infrastructure construction in remote areas vary. The layout of on-site equipment is irregular and highly decentralized, and the power supply and communication wiring of each decentralized monitoring equipment is very complicated and has low reliability.

[0003] Most construction sites have a low degree of automation, and some even use manual measurement or give up measuring equipment data and sensor data on industrial construction sites. Taking the freezing station site as an example, the freezing method construction mainly involves the acquisition and control of relevant parameters such as temperature, flow, and pressure. The equipment involved mainly includes compressors and various types of pumps. At present, all data is obtained by pre-arranged sensors and acquired manually or by wired acquisition. The measured data is manually analyzed to draw conclusions, and then the corresponding equipment is manually adjusted to achieve the control purpose. This method has a slow adjustment response speed and cannot provide timely feedback on abnormalities. In addition, the on-site wiring is relatively chaotic, and data loss or untimely acquisition often occurs, which is prone to misjudgment and does not form automatic control.

[0004] Even if on-site data is collected, it cannot be displayed to the remote control center, and remote control instructions cannot be directly issued to the industrial construction site. Summary of the invention

[0005] Therefore, the technical problem to be solved by the present invention is:

[0006] There are many construction equipment in the freezing station and they are scattered, and the working status monitoring points configured for each construction equipment are also scattered. To power the sensors and monitors in the scattered monitoring points, complex power supply line wiring is required. Since each construction site is affected by factors such as terrain and climate, the power supply lines for the monitoring points at different construction sites are also different, with poor regularity and low reliability.

[0007] Similar to power supply lines, the working status information collected by each monitoring node needs to be transmitted to the on-site control room through communication lines. Regardless of the physical material used for line transmission, there is the problem of complex line layout, which further affects reliability.

[0008] The interaction between the freezing station control system and the remote monitoring center is poor, and there is a data transmission delay. The on-site data is not uploaded to the remote monitoring center in time, and the control instructions issued by the remote control center cannot reach the site in time, and the real-time performance of the two-way interaction is poor.

[0009] In order to solve the above problems, the present application provides a freezing station wireless monitoring system based on monitoring nodes with self-generated and self-supplied power supply.

[0010] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0011] A freezing station wireless monitoring system based on monitoring nodes with self-generated and self-supplied power supplies, comprising equipment in the freezing station and remote monitoring equipment; the equipment in the freezing station comprises an in-station controller, an in-station monitoring platform, a 5G gateway in the freezing station, an in-station gateway, several monitoring nodes and an in-station wireless network, and the remote monitoring equipment comprises a 5G gateway for remote monitoring and a remote monitoring platform;

[0012] The in-station controller is respectively connected to the in-station monitoring platform, the 5G gateway, and the in-station gateway; the in-station gateway is connected to each monitoring node in the station via the in-station wireless network;

[0013] The 5G gateway in the freezing station is connected to the cloud server through the 5G network, and the cloud server realizes data exchange with the remote monitoring platform through the remote monitoring 5G gateway.

[0014] The above-mentioned freezing station wireless monitoring system is formed based on the monitoring node with self-generated and self-supplied power supply, and the monitoring node includes a monitoring node controller, a transceiver system, a field equipment control system, a field data collection system and a power supply system;

[0015] The monitoring node controller is respectively connected to the transceiver system, the field equipment control system, the field data collection system and the power supply system through physical communication lines to achieve two-way data interaction; the monitoring node controller is also respectively connected to the subsystem controllers in the power supply system through a physical communication bus.

[0016] The above-mentioned wireless monitoring system for freezing stations formed based on monitoring nodes with self-generated and self-supplied power supply, the transceiver system includes a transceiver, a transceiver front-end module and an antenna;

[0017] The transceiver is provided with a transceiver controller, a digital baseband system, a receiver, a synthesizer, a transmitter, a transceiver power amplifier and a low noise amplifier; the transceiver front-end module is provided with a transceiver front-end module control unit, a transceiver switching switch, a transmission matching network, a reception matching network, a transceiver front-end power amplifier and a harmonic filter;

[0018] The monitoring node controller and the transceiver controller realize a two-way communication connection. The transceiver controller transmits the obtained communication signal to the transmitter through the digital baseband system. The transmitter sends the obtained communication signal to the transceiver power amplifier for amplification, or the digital baseband system sends it to the transmitter through the synthesizer. The signal output end of the transmitter is communicatively connected with the input end of the transceiver power amplifier; the transceiver power amplifier transmits the amplified communication signal to the transmission matching network, and then communicates with the first end of the transceiver switching switch through the transceiver front-end power amplifier and the harmonic filter; the second end of the transceiver switching switch is connected to the antenna communication network. The third end of the transceiver switching switch is communicatively connected to the signal input end of the receiving matching network, and the signal output end of the receiving matching network is communicatively connected to the signal input end of the low noise amplifier. The receiver receives the signal of the low noise amplifier, transmits it to the digital baseband system, and transmits it back to the monitoring node controller through the transceiver controller; the transceiver front-end module control unit performs power adjustment on the transceiver front-end power amplifier, and the transceiver front-end module control unit performs logic control on the transceiver switching switch; the communication signal of the digital baseband system is transmitted to the receiver through the synthesizer; the transceiver controller is communicatively connected to the ROM memory and the RAM memory respectively.

[0019] The above-mentioned freezing station wireless monitoring system is based on the monitoring nodes with self-generated and self-supplied power supply. The field equipment control system includes a field equipment controller, a field equipment manual operation platform and construction equipment; the field equipment controller is provided with a field equipment main control unit, a digital quantity transceiver control unit, an analog quantity transceiver control unit, a frequency converter coordination control unit and several electrical circuit control units;

[0020] The main control unit of the field equipment is communicatively connected with the monitoring node controller;

[0021] The main control unit of the field equipment is connected to the manual operation platform of the field equipment through which the field operator manually operates the construction equipment on site;

[0022] The main control unit of the field equipment is respectively connected to the digital quantity transceiver control unit, the analog quantity transceiver control unit, the inverter coordination control unit and several electrical circuit control units for data exchange.

[0023] The above-mentioned freezing station wireless monitoring system based on the monitoring node with a self-generated and self-contained power supply, the digital quantity transceiver control unit is provided with a plurality of digital quantity input interfaces and a plurality of digital quantity output interfaces, and the digital quantity input interface and the digital quantity output interface of the digital quantity transceiver control unit are respectively communicatively connected with the digital quantity output interface and the digital quantity input interface of the construction equipment;

[0024] The analog quantity transceiver control unit is provided with a plurality of analog quantity input interfaces and a plurality of analog quantity output interfaces, and the analog quantity input interface and the analog quantity output interface of the analog quantity transceiver control unit are respectively communicatively connected with the analog quantity output interface and the analog quantity input interface of the construction equipment;

[0025] The frequency converter coordination control unit is provided with a plurality of independent parameter feedback interfaces, parameter setting interfaces, state feedback interfaces and function enabling interfaces respectively, and the parameter feedback interfaces, parameter setting interfaces, state feedback interfaces and function enabling interfaces are respectively communicated and connected with the parameter feedback interfaces, parameter setting interfaces, state feedback interfaces and function enabling interfaces of the frequency converter of the construction equipment;

[0026] The electrical circuit control unit is respectively provided with a signal acquisition interface, a separation and closing feedback interface, a switch-opening control interface and a switch-closing control interface, which are respectively communicatively connected with the signal acquisition interface, separation and closing feedback interface, switch-opening control interface and switch-closing control interface of the electrical circuit of the construction equipment.

[0027] The above-mentioned freezing station wireless monitoring system based on the monitoring node with self-generated and self-supplied power supply, the field data collection system includes a field data collector and a sensor; the field data collector is provided with a field data collection unit, a digital quantity transceiver control unit and an analog quantity transceiver control unit; the field data collection unit is communicatively connected with the monitoring node controller;

[0028] The digital quantity transceiver control unit is provided with a plurality of digital quantity input interfaces and a plurality of digital quantity output interfaces, and the digital quantity input interface and the digital quantity output interface of the digital quantity transceiver control unit are respectively communicatively connected with the digital quantity output interface and the digital quantity input interface of the sensor;

[0029] The analog quantity transceiver control unit is provided with a plurality of analog quantity input interfaces and a plurality of analog quantity output interfaces. The analog quantity input interface and the analog quantity output interface of the analog quantity transceiver control unit are respectively communicatively connected with the analog quantity output interface and the analog quantity input interface of the sensor.

[0030] The above-mentioned wireless monitoring system for freezing stations formed based on monitoring nodes with self-generated and self-supplied power supplies, the power supply system includes a power management controller, an energy storage subsystem, a photovoltaic subsystem, a wind subsystem, an external power access subsystem and several DC / DC module subsystems; the monitoring node controller uses the power management controller to interact with the energy storage subsystem, the photovoltaic subsystem, the wind subsystem, the external power access subsystem and several DC / DC module subsystems, and at the same time, the monitoring node controller interacts with the energy storage subsystem, the photovoltaic subsystem, the wind subsystem, the external power access subsystem and several DC / DC module subsystems through a physical communication bus;

[0031] The power supply system also includes a system DC bus; the energy storage subsystem, the photovoltaic subsystem, the wind power subsystem and the external power access subsystem are respectively connected to the system DC bus through the fast switches in their respective subsystems, and the system DC bus is then connected to the DC / DC module subsystem through the fast switches in the DC / DC module subsystem to realize power supply;

[0032] The power management controller includes a power management main control unit, a power generation coordination control unit and a power supply coordination control unit; the power generation coordination control unit is used to coordinate the power generation of the energy storage subsystem, the photovoltaic subsystem, the wind electronic system and the external power access subsystem, and the power supply coordination control unit coordinates the power supply of several DC / DC module subsystems; the power management main control unit realizes interactive control with the power generation coordination control unit and the power supply coordination control unit respectively.

[0033] The above-mentioned wireless monitoring system for freezing stations, which is based on monitoring nodes with self-generated and self-supplied power supply, and the energy storage subsystem realize the backup power function within the control node;

[0034] The energy storage subsystem includes an energy storage subsystem controller, several energy storage element groups and several energy storage bidirectional modules; the several energy storage element groups are respectively connected to the several energy storage bidirectional modules, and connected to the internal bus, and then connected to the system DC bus through the fast switch K101; the signal input and output ends of the energy storage bidirectional module and the fast switch K101 are connected to the energy storage subsystem controller in communication, and sampling interfaces CPT101 and CPT102 are respectively provided before and after the fast switch K101 is connected, and the sampling data is uploaded to the energy storage subsystem controller;

[0035] The upload and receiving interfaces of the energy storage subsystem controller are connected to the power management controller, and the energy storage subsystem controller is connected to the monitoring node controller via a physical communication bus; the fast switch K101 is connected to the monitoring node controller;

[0036] The energy storage bidirectional module includes an energy storage bidirectional module controller, a manual switch SW11, an energy storage element side soft start switch group K11, a buck-boost bidirectional circuit unit IGBT11 and a bus side soft start switch group K12; the energy storage element group is connected to the energy storage element side soft start switch group K11 through the manual switch SW11, and then connected to the internal bus through the buck-boost bidirectional circuit unit IGBT11 and the bus side soft start switch group K12; the signal input and output ends of the energy storage element side soft start switch group K11, the buck-boost bidirectional circuit unit IGBT11 and the bus side soft start switch group K12 are communicatively connected with the energy storage bidirectional module controller, the output end of the energy storage element side soft start switch group K11 is provided with a sampling interface CPT11, and the sampling data is uploaded to the energy storage bidirectional module controller; the output end of the bus side soft start switch group K12 is provided with a sampling interface CPT12, and the sampling data is uploaded to the energy storage bidirectional module controller.

[0037] The above-mentioned freezing station wireless monitoring system, photovoltaic subsystem and wind subsystem, which are formed based on monitoring nodes with self-generated and self-supplied power supply, realize the self-generation function in the monitoring nodes;

[0038] The photovoltaic subsystem includes a photovoltaic subsystem controller, a number of photovoltaic strings and a number of photovoltaic input modules; the photovoltaic strings are respectively connected to the photovoltaic input modules, and connected to the internal bus, and then connected to the system DC bus through the fast switch K201; the signal input and output ends of the photovoltaic input module and the fast switch K201 are connected to the photovoltaic subsystem controller in communication, and the sampling interface CPT201 and the sampling interface CPT202 are respectively provided before and after the fast switch K201 is connected, and the sampling data is uploaded to the photovoltaic subsystem controller;

[0039] The upload and receiving interfaces of the photovoltaic subsystem controller are connected to the power management controller in communication, and the photovoltaic subsystem controller is connected to the monitoring node controller in communication via a physical communication bus; the fast switch K201 is connected to the monitoring node controller;

[0040] The photovoltaic input module includes a photovoltaic input module controller, a manual switch SW21, a soft start switch group K21 and a boost circuit unit IGBT21; the photovoltaic string is connected to the soft start switch group K21 through the manual switch SW21, and then connected to the internal bus through the boost circuit unit IGBT21; the signal input and output ends of the soft start switch group K21 and the boost circuit unit IGBT21 are connected to the photovoltaic input module controller, and the output end of the soft start switch group K21 is provided with a sampling interface CPT21, and the sampling data is uploaded to the photovoltaic input module controller; the output end of the boost circuit unit IGBT21 is provided with a sampling interface CPT22, and the sampling data is uploaded to the photovoltaic input module controller;

[0041] The wind sub-system includes a wind sub-system controller, several wind turbines and several wind power input modules; several wind turbines are respectively connected to several wind power input modules, and connected to the internal bus, and then connected to the system DC bus through the fast switch K301; the signal input and output ends of the wind sub-input module and the fast switch K301 are connected to the wind sub-system controller for communication, and sampling interfaces CPT301 and CPT302 are respectively provided before and after the fast switch K301 is connected, and the sampling data is uploaded to the wind sub-system controller;

[0042] The upload and receiving interfaces of the wind sub-system controller are connected to the power management controller in communication, and the wind sub-system controller is connected to the monitoring node controller in communication via a physical communication bus; the fast switch K301 is connected to the monitoring node controller;

[0043] The wind power input module includes a wind power input module controller, a manual switch SW31, an uncontrolled rectifier bridge D31, a soft start switch group K31 and a boost circuit unit IGBT31; the wind turbine is connected to the soft start switch group K31 through the manual switch SW31 and the uncontrolled rectifier bridge D31, and then connected to the internal bus through the boost circuit unit IGBT31; the signal input and output ends of the soft start switch group K31 and the boost circuit unit IGBT31 are communicated with the wind power input module controller, and the output end of the soft start switch group K31 is provided with a sampling interface CPT31, and the sampling data is uploaded to the wind power input module controller; the output end of the boost circuit unit IGBT31 is provided with a sampling interface CPT32, and the sampling data is uploaded to the wind power input module controller.

[0044] The above-mentioned wireless monitoring system for freezing stations based on monitoring nodes with self-generated and self-supplied power supply, external power access subsystem, is used for direct access to power distribution network;

[0045] The external power access subsystem includes an external power access subsystem controller, an AC access module and a DC access module; the external AC power supply and the external DC power supply are respectively connected to the internal bus through the AC access module and the DC access module, and then connected to the system DC bus through the fast switch K401; the signal input and output ends of the AC access module, the DC access module and the fast switch K401 are communicatively connected to the external power access subsystem controller, and sampling interfaces CPT401 and CPT402 are respectively provided before and after the fast switch K401 is connected, and the sampling data is uploaded to the external power access subsystem controller;

[0046] The upload and receiving interfaces of the external power access subsystem controller are connected to the power management controller, and the external power access subsystem controller is connected to the monitoring node controller through a physical communication bus; the fast switch K401 is connected to the monitoring node controller;

[0047] The AC access module includes an AC access module controller, a manual switch SW41, an uncontrolled rectifier bridge D41, a soft start switch group K41 and a buck circuit unit IGBT41; the external AC power supply is connected to the soft start switch group K41 through the manual switch SW41 and the uncontrolled rectifier bridge D41, and then connected to the internal bus through the buck circuit unit IGBT41; the signal input and output ends of the soft start switch group K41 and the buck circuit unit IGBT41 are communicatively connected with the AC access module controller, and the output end of the soft start switch group K41 is provided with a sampling interface CPT41, and the sampling data is uploaded to the AC access module controller; the output end of the buck circuit unit IGBT41 is provided with a sampling interface CPT42, and the sampling data is uploaded to the AC access module controller;

[0048] The DC access module includes a DC access module controller, a manual switch SW51, an external power supply side soft start switch group K51, a buck-boost bidirectional circuit unit IGBT51 and a bus side soft start switch group K52; the external DC power supply is connected to the buck-boost bidirectional circuit unit IGBT51 through the manual switch SW51 and the external power supply side soft start switch group K51, and then connected to the internal bus through the bus side soft start switch group K52; the signal input and output ends of the soft start switch group K51, the buck-boost bidirectional circuit unit IGBT51 and the bus side soft start switch group K52 are communicatively connected with the DC access module controller, the output end of the external power supply side soft start switch group K51 is provided with a sampling interface CPT51, and the sampling data is uploaded to the DC access module controller; the output end of the bus side soft start switch group K52 is provided with a sampling interface CPT52, and the sampling data is uploaded to the DC access module controller;

[0049] The DC / DC module subsystem includes a DC / DC module subsystem controller and several DC / DC modules; the system DC bus is connected to the DC / DC module through a fast switch K601, and then power is supplied; a sampling interface CPT601 and a sampling interface CPT602 are respectively provided before and after the fast switch K601, and the sampling data is uploaded to the DC / DC module subsystem controller; the signal input and output ends of the DC / DC module and the fast switch K601 are connected to the DC / DC module subsystem controller in communication;

[0050] The upload and receiving interfaces of the DC / DC module subsystem controller are connected to the power management controller in communication, and the DC / DC module subsystem controller is connected to the monitoring node controller in communication via a physical communication bus; the fast switch K601 is connected to the monitoring node controller.

[0051] The technical solution of the present invention achieves the following beneficial technical effects:

[0052] 1. The power supply system is equipped with a photovoltaic subsystem and a wind subsystem to realize the self-generation function in the monitoring node; an energy storage subsystem is set up to realize the backup power function in the control node; an external power supply access subsystem is set up for direct access to the power supply of the distribution network.

[0053] 2. A system DC bus is set up in the power supply system, and each subsystem is connected to the system DC bus through a fast switch. An independent subsystem controller is set up inside each subsystem. Each subcontroller is equipped with an upload and receive interface for data interaction with the power controller, and a bus communication interface for data interaction with the monitoring node controller. Each subcontroller communicates with the module controller in its own subsystem to achieve coordinated control in its own subsystem.

[0054] 3. The DC bus interface in the power supply system adopts a plug-and-play design. Each subsystem can be flexibly connected or removed according to the needs of the power supply system. The functional modules in each subsystem adopt a plug-and-play design. The number of modules can be added or reduced at any time according to the power requirements.

[0055] 4. Several bidirectional energy storage modules are set in the energy storage subsystem, and each bidirectional energy storage module is provided with an independent bidirectional energy storage module controller. Several photovoltaic input modules are set in the photovoltaic subsystem, and an independent photovoltaic input module controller is set in each photovoltaic input module. Several wind power input modules are set in the wind subsystem, and an independent wind power input module controller is set in each wind power input module. Each module controller implements the basic functions within the module to realize control, and at the same time communicates with the corresponding subsystem controller to receive and execute coordinated control instructions.

[0056] 5. The remote monitoring platform can set or adjust the power supply system working strategy of each monitoring node through the 5G network, or the on-site operators can use the in-station monitoring platform. The power supply system strategy in each monitoring node is implemented by the respective power management controller, with the main control goal of ensuring the normal and continuous power supply of the equipment in the monitoring node, and energy saving and consumption reduction as a further optimization goal. In the fully automatic operation state, the power management controller flexibly coordinates and controls the input power control of the energy storage subsystem, photovoltaic subsystem, wind power subsystem, external power access subsystem, and the output power control of several DC / DC modules according to the pre-set control strategy and actual working conditions, and removes the DC / DC module control in extreme cases.

[0057] 6. Each subsystem controller obtains the input, output, control, feedback, and sampling information of each module in the corresponding subsystem from the module controller of the module in its own subsystem for fault judgment and device self-protection; when it is judged to be an external fault, the switch of the corresponding module is tripped; among the self-protection functions, for situations that directly cause permanent damage to the device, the direct protection is locked and a fault signal is sent to the outside; for situations that will not cause permanent damage to the device, only a fault signal is sent without stopping.

[0058] 7. Set up an in-station controller and an in-station wireless network in the freezing station. The in-station controller is connected to the in-station monitoring platform, 5G gateway, and in-station gateway; the in-station gateway realizes wireless communication with each monitoring node controller in the station through the in-station wireless network; the 5G gateway connects to the cloud server through the 5G network to realize data interaction with the remote monitoring platform.

[0059] Each monitoring node is equipped with an independent monitoring node controller, which is responsible for communicating with the gateway in the station, interacting with the field equipment, collecting field sensor data, and coordinating the power supply system. Subsystems are set up in the power supply system to realize self-generated and self-supplied power supply in the monitoring node.

[0060] Based on the wireless network in the station and the self-generated power supply setting in the monitoring node, the wiring of physical communication lines and power supply lines is omitted. The whole process of freezing construction can be monitored and controlled with all parameters, which can achieve energy saving and consumption reduction, and improve the intelligence and precision of the freezing construction process. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] Figure 1 Schematic diagram of the network architecture of the station and remote devices;

[0062] Figure 2 Schematic diagram of the control system architecture and interfaces of the monitoring node;

[0063] Figure 3 Block diagram of the transceiver and front-end module of the monitoring node;

[0064] Figure 4 The logic state diagram of the transceiver controller of the monitoring node;

[0065] Figure 5 Schematic diagram of the field device controller interface of the monitoring node;

[0066] Figure 6 Schematic diagram of the field data collector interface of the monitoring node;

[0067] Figure 7 Schematic diagram of the power supply system line connection of the monitoring node;

[0068] Figure 8 Schematic diagram of the components of the energy storage subsystem and the main circuit topology in the monitoring node;

[0069] Fig. 9 Schematic diagram of the main circuit topology of the energy storage bidirectional module in the energy storage subsystem within the monitoring node;

[0070] Fig.10 Schematic diagram of the components of the photovoltaic subsystem and the main circuit topology in the monitoring node;

[0071] Fig.11 Schematic diagram of the main circuit topology of the photovoltaic input module in the photovoltaic subsystem within the monitoring node;

[0072] Fig.12 Schematic diagram of wind electronic system components and main circuit topology in the monitoring node;

[0073] Fig.13 Schematic diagram of the main circuit topology of the wind power input module in the wind power subsystem within the monitoring node;

[0074] Fig.14 Schematic diagram of the components of the monitoring node's internal and external power supply access subsystem and the main circuit topology;

[0075] Fig.15Schematic diagram of the main circuit topology of the AC access module in the external power access subsystem of the monitoring node;

[0076] Fig.16 Schematic diagram of the main circuit topology of the DC access module in the external power access subsystem of the monitoring node;

[0077] Fig.17 Schematic diagram of the components of the DC / DC module subsystem and the main circuit topology in the monitoring node. DETAILED DESCRIPTION

[0078] A wireless monitoring system for freezing stations based on monitoring nodes with self-generated and self-supplied power, such as Figure 1 As shown, it includes freezing station equipment and remote monitoring equipment; the freezing station equipment includes a station controller, a station monitoring platform, a 5G gateway in the freezing station, a station gateway, several monitoring nodes and a station wireless network, and the remote monitoring equipment includes a remotely monitored 5G gateway and a remote monitoring platform;

[0079] The in-station controller is respectively connected to the in-station monitoring platform, the 5G gateway, and the in-station gateway; the in-station gateway is connected to each monitoring node in the station via the in-station wireless network;

[0080] The 5G gateway in the freezing station is connected to the cloud server through the 5G network, and the cloud server realizes data exchange with the remote monitoring platform through the remote monitoring 5G gateway.

[0081] like Figure 2 As shown, the monitoring node includes a monitoring node controller, a transceiver system, a field equipment control system, a field data collection system and a power supply system;

[0082] The monitoring node controller is respectively connected to the transceiver system, the field equipment control system, the field data collection system and the power supply system through physical communication lines to realize two-way data interaction; the monitoring node controller is also respectively communicated with the subsystem controllers in the power supply system through a physical communication bus, that is, a physical communication bus is set between the monitoring node controller and each subsystem controller in the power supply system. The physical communication line is a direct communication line, which can realize all known wired communication methods, has good failure resistance and high reliability. However, in this application, the data of each subsystem (such as the energy storage subsystem, etc.) needs to be collected and transferred by the power management controller before it can reach the monitoring node controller. The physical communication bus realizes communication through the bus protocol.

[0083] like Figure 3As shown, the transceiver system includes a transceiver, a transceiver front-end module and an antenna; the monitoring node controller realizes wireless communication with the in-station controller through the transceiver system, using the in-station wireless network and the in-station gateway.

[0084] The transceiver is provided with a transceiver controller, a digital baseband system, a receiver, a synthesizer, a transmitter, a transceiver power amplifier and a low noise amplifier; the transceiver front-end module is provided with a transceiver front-end module control unit, a transceiver switching switch, a transmission matching network, a reception matching network, a transceiver front-end power amplifier and a harmonic filter;

[0085] The monitoring node controller and the transceiver controller realize a two-way communication connection. The transceiver controller transmits the acquired communication signal to the transmitter through the digital baseband system. The transmitter sends the communication signal to the transceiver power amplifier for amplification, or the digital baseband system sends it to the transmitter through the synthesizer. The signal output end of the transmitter is communicatively connected with the input end of the transceiver power amplifier; the transceiver power amplifier transmits the amplified communication signal to the transmission matching network, and then communicates with the first end of the transceiver switching switch through the transceiver front-end power amplifier and the harmonic filter; the second end of the transceiver switching switch is communicatively connected with the antenna. The third end of the transceiver switching switch is connected to the signal input end of the receiving matching network, and the signal output end of the receiving matching network is connected to the signal input end of the low noise amplifier. The receiver receives the signal of the low noise amplifier, transmits it to the digital baseband system, and transmits it back to the monitoring node controller through the transceiver controller. The transceiver front-end module control unit adjusts the power of the transceiver front-end power amplifier, and the transceiver front-end module control unit performs logic control on the transceiver switching switch. The communication signal of the digital baseband system is transmitted to the receiver through the synthesizer; the transceiver controller is connected to the ROM memory and the RAM memory respectively. The receiving matching circuit is used to identify the communication signal within the station and improve the effective signal recognition rate. The sending matching network, the transceiver front-end power amplifier and the harmonic filter are used to increase the signal transmission power.

[0086] like Figure 5 As shown, the field equipment control system includes a field equipment controller, a field equipment manual operation platform and construction equipment; the monitoring node controller uses the field equipment controller in the field equipment control system to obtain data information of the construction equipment and issue operation instructions.

[0087] The field device controller is provided with a field device main control unit, a digital quantity transceiver control unit, an analog quantity transceiver control unit, a frequency converter coordination control unit and several electrical circuit control units;

[0088] The main control unit of the field equipment is communicatively connected with the monitoring node controller;

[0089] The main control unit of the field equipment is connected to the manual operation platform of the field equipment through which the field operator manually operates the construction equipment on site;

[0090] The main control unit of the field equipment is respectively connected to the digital quantity transceiver control unit, the analog quantity transceiver control unit, the inverter coordination control unit and several electrical circuit control units for data exchange.

[0091] The "digital transceiver control unit and analog transceiver control unit" set in the field equipment controller are both for the construction equipment itself.

[0092] Specifically, the digital quantity transceiver control unit is provided with a plurality of digital quantity input interfaces and a plurality of digital quantity output interfaces, and the digital quantity input interface and the digital quantity output interface of the digital quantity transceiver control unit are respectively communicatively connected with the digital quantity output interface and the digital quantity input interface of the construction equipment;

[0093] The analog quantity transceiver control unit is provided with a plurality of analog quantity input interfaces and a plurality of analog quantity output interfaces, and the analog quantity input interface and the analog quantity output interface of the analog quantity transceiver control unit are respectively communicatively connected with the analog quantity output interface and the analog quantity input interface of the construction equipment;

[0094] The inverter coordination control unit is respectively provided with several independent parameter feedback interfaces, parameter setting interfaces, state feedback interfaces and function enable interfaces, which are respectively communicated with the parameter feedback interface, parameter setting interface, state feedback interface and function enable interface of the inverter of the construction equipment; the inverter coordination control unit provides control and feedback interfaces for several inverters, and is provided with independent parameter feedback, parameter setting, state feedback and function enable interfaces for each inverter.

[0095] The electrical circuit control unit is respectively provided with a signal acquisition interface, a separation and closing feedback interface, a switch opening control interface and a switch closing control interface, which are respectively communicatively connected with the signal acquisition interface, separation and closing feedback interface, switch opening control interface and switch closing control interface of the electrical circuit of the construction equipment.

[0096] like Figure 6 As shown, the field data collection system includes a field data collector and a sensor; the monitoring node controller uses the field data collector in the field data collection system to obtain sensor data.

[0097] The field data collector is provided with a field data collection unit, a digital quantity transceiver control unit and an analog quantity transceiver control unit; the field data collection unit is connected to the monitoring node controller in communication;

[0098] The digital quantity transceiver control unit is provided with a plurality of digital quantity input interfaces and a plurality of digital quantity output interfaces, and the digital quantity input interface and the digital quantity output interface of the digital quantity transceiver control unit are respectively communicatively connected with the digital quantity output interface and the digital quantity input interface of the sensor;

[0099] The analog transceiver control unit is provided with several analog input interfaces and several analog output interfaces. The analog input interface and analog output interface of the analog transceiver control unit are respectively connected to the analog output interface and analog input interface of the sensor. (The digital transceiver control unit and analog transceiver control unit in the field data collector are for sensors "other than construction equipment", such as electronic fences, fire detectors, etc.)

[0100] The field data collection unit is provided with a communication interface with the monitoring node controller, and exchanges data with the digital quantity transceiver unit and the analog quantity transceiver control unit.

[0101] like Figure 7 As shown, the power supply system includes a power management controller, an energy storage subsystem, a photovoltaic subsystem, a wind subsystem, an external power access subsystem and several DC / DC module subsystems; the monitoring node controller uses the power management controller to interact with the energy storage subsystem, the photovoltaic subsystem, the wind subsystem, the external power access subsystem and several DC / DC module subsystems, and at the same time, the monitoring node controller interacts with the energy storage subsystem, the photovoltaic subsystem, the wind subsystem, the external power access subsystem and several DC / DC module subsystems through a physical communication bus; the monitoring node controller uses the power management controller in the power supply system to interact with each subsystem, and at the same time, interacts with each subsystem through a physical communication bus.

[0102] The power supply system is equipped with a photovoltaic subsystem and a wind power subsystem to realize the self-generation function in the monitoring node; an energy storage subsystem is set up to realize the backup power function in the control node; an external power supply access subsystem is set up for direct access to the distribution network power supply.

[0103] The power supply system also includes a system DC bus; the energy storage subsystem, photovoltaic subsystem, wind power electronic system and external power access subsystem are respectively connected to the system DC bus through the fast switches in their respective subsystems, and the system DC bus is then connected to the DC / DC module subsystem through the fast switch in the DC / DC module subsystem to achieve power supply.

[0104] The power management controller includes a power management main control unit, a power generation coordination control unit and a power supply coordination control unit; the power generation coordination control unit is used to coordinate the power generation of the energy storage subsystem, the photovoltaic subsystem, the wind electronic system and the external power access subsystem, and the power supply coordination control unit coordinates the power supply of several DC / DC module subsystems; the power management main control unit realizes interactive control with the power generation coordination control unit and the power supply coordination control unit respectively.

[0105] Each subsystem has an independent subsystem controller. Each subcontroller has an upload and receive interface for data interaction with the power controller, and a bus communication interface for data interaction with the monitoring node controller. Each subcontroller communicates with the module controller in its own subsystem to achieve coordinated control in its own subsystem.

[0106] The DC bus interface in the power supply system adopts a plug-and-play design. Each subsystem can be flexibly connected or removed according to the needs of the power supply system. The functional modules in each subsystem adopt a plug-and-play design. The number of modules can be added or reduced at any time according to the power requirements.

[0107] like Figure 8 As shown, the energy storage subsystem realizes the backup power function within the control node;

[0108] The energy storage subsystem includes an energy storage subsystem controller, several energy storage element groups and several energy storage bidirectional modules; the several energy storage element groups are respectively connected to the several energy storage bidirectional modules, and connected to the internal bus, and then connected to the system DC bus through the fast switch K101; the signal input and output ends of the energy storage bidirectional module and the fast switch K101 are connected to the energy storage subsystem controller in communication, and sampling interfaces CPT101 and sampling interfaces CPT102 are respectively provided before and after the fast switch K101 is connected, and the sampling data is uploaded to the energy storage subsystem controller; the fast switch K101 is connected to the monitoring node controller;

[0109] The upload and receiving interfaces of the energy storage subsystem controller are connected to the power management controller in communication, and the energy storage subsystem controller can also be connected to the monitoring node controller in communication via a physical communication bus;

[0110] like Fig. 9As shown, the energy storage bidirectional module includes an energy storage bidirectional module controller, a manual switch SW11, an energy storage element side soft start switch group K11, a buck-boost bidirectional circuit unit IGBT11 and a bus side soft start switch group K12; the energy storage element group is connected to the energy storage element side soft start switch group K11 through the manual switch SW11, and then connected to the internal bus through the buck-boost bidirectional circuit unit IGBT11 and the bus side soft start switch group K12; the signal input and output ends of the energy storage element side soft start switch group K11, the buck-boost bidirectional circuit unit IGBT11 and the bus side soft start switch group K12 are communicatively connected with the energy storage bidirectional module controller, the output end of the energy storage element side soft start switch group K11 is provided with a sampling interface CPT11, and the sampling data is uploaded to the energy storage bidirectional module controller; the output end of the bus side soft start switch group K12 is provided with a sampling interface CPT12, and the sampling data is uploaded to the energy storage bidirectional module controller.

[0111] like Fig.10 As shown, the photovoltaic subsystem includes a photovoltaic subsystem controller, a number of photovoltaic strings and a number of photovoltaic input modules; the photovoltaic strings are respectively connected to the photovoltaic input modules, and connected to the internal bus, and then connected to the system DC bus through the fast switch K201; the signal input and output ends of the photovoltaic input module and the fast switch K201 are communicatively connected to the photovoltaic subsystem controller, and sampling interfaces CPT201 and sampling interfaces CPT202 are respectively provided before and after the fast switch K201 is connected, and the sampling data is uploaded to the photovoltaic subsystem controller;

[0112] The upload and receiving interfaces of the photovoltaic subsystem controller are connected to the power management controller in communication, and the photovoltaic subsystem controller is connected to the monitoring node controller in communication via a physical communication bus; the fast switch K201 is connected to the monitoring node controller;

[0113] like Fig.11 As shown, the photovoltaic input module includes a photovoltaic input module controller, a manual switch SW21, a soft start switch group K21 and a boost circuit unit IGBT21; the photovoltaic string is connected to the soft start switch group K21 through the manual switch SW21, and then connected to the internal bus through the boost circuit unit IGBT21; the signal input and output ends of the soft start switch group K21 and the boost circuit unit IGBT21 are connected to the photovoltaic input module controller, and the output end of the soft start switch group K21 is provided with a sampling interface CPT21, and the sampling data is uploaded to the photovoltaic input module controller; the output end of the boost circuit unit IGBT21 is provided with a sampling interface CPT22, and the sampling data is uploaded to the photovoltaic input module controller;

[0114] like Fig.12As shown, the wind sub-system includes a wind sub-system controller, a plurality of wind turbines and a plurality of wind power input modules; the plurality of wind turbines are respectively connected to the plurality of wind power input modules, and connected to the internal bus, and then connected to the system DC bus through the fast switch K301; the signal input and output ends of the wind sub-input module and the fast switch K301 are communicatively connected to the wind sub-system controller, and sampling interfaces CPT301 and CPT302 are respectively provided before and after the fast switch K301 is connected, and the sampling data is uploaded to the wind sub-system controller;

[0115] The upload and receiving interfaces of the wind sub-system controller are connected to the power management controller in communication, and the wind sub-system controller is connected to the monitoring node controller in communication via a physical communication bus; the fast switch K301 is connected to the monitoring node controller;

[0116] like Fig.13 As shown, the wind power input module includes a wind power input module controller, a manual switch SW31, an uncontrolled rectifier bridge D31, a soft start switch group K31 and a boost circuit unit IGBT31; the wind turbine is connected to the soft start switch group K31 through the manual switch SW31 and the uncontrolled rectifier bridge D31, and then connected to the internal bus through the boost circuit unit IGBT31; the signal input and output ends of the soft start switch group K31 and the boost circuit unit IGBT31 are connected to the wind power input module controller, and the output end of the soft start switch group K31 is provided with a sampling interface CPT31, and the sampling data is uploaded to the wind power input module controller; the output end of the boost circuit unit IGBT31 is provided with a sampling interface CPT32, and the sampling data is uploaded to the wind power input module controller.

[0117] like Fig.14 As shown, the external power access subsystem includes an external power access subsystem controller, an AC access module and a DC access module; the external AC power supply and the external DC power supply are respectively connected to the internal bus through the AC access module and the DC access module, and then connected to the system DC bus through the fast switch K401; the signal input and output ends of the AC access module, the DC access module and the fast switch K401 are communicatively connected to the external power access subsystem controller, and a sampling interface CPT401 and a sampling interface CPT402 are respectively provided before and after the fast switch K401 is connected, and the sampling data is uploaded to the external power access subsystem controller;

[0118] The upload and receiving interfaces of the external power access subsystem controller are connected to the power management controller, and the external power access subsystem controller is connected to the monitoring node controller through a physical communication bus; the fast switch K401 is connected to the monitoring node controller;

[0119] like Fig.15As shown, the AC access module includes an AC access module controller, a manual switch SW41, an uncontrolled rectifier bridge D41, a soft start switch group K41 and a buck circuit unit IGBT41; the external AC power supply is connected to the soft start switch group K41 through the manual switch SW41 and the uncontrolled rectifier bridge D41, and then connected to the internal bus through the buck circuit unit IGBT41; the signal input and output ends of the soft start switch group K41 and the buck circuit unit IGBT41 are communicatively connected to the AC access module controller, and the output end of the soft start switch group K41 is provided with a sampling interface CPT41, and the sampling data is uploaded to the AC access module controller; the output end of the buck circuit unit IGBT41 is provided with a sampling interface CPT42, and the sampling data is uploaded to the AC access module controller;

[0120] like Fig.16 As shown, the DC access module includes a DC access module controller, a manual switch SW51, an external power supply side soft start switch group K51, a buck-boost bidirectional circuit unit IGBT51 and a bus side soft start switch group K52; the external DC power supply is connected to the buck-boost bidirectional circuit unit IGBT51 through the manual switch SW51 and the external power supply side soft start switch group K51, and then connected to the internal bus through the bus side soft start switch group K52; the signal input and output ends of the soft start switch group K51, the buck-boost bidirectional circuit unit IGBT51 and the bus side soft start switch group K52 are communicatively connected with the DC access module controller, the output end of the external power supply side soft start switch group K51 is provided with a sampling interface CPT51, and the sampling data is uploaded to the DC access module controller; the output end of the bus side soft start switch group K52 is provided with a sampling interface CPT52, and the sampling data is uploaded to the DC access module controller;

[0121] like Fig.17 As shown, the DC / DC module subsystem includes a DC / DC module subsystem controller and several DC / DC modules; the system DC bus is connected to the DC / DC module through a fast switch K601, and then power is supplied; a sampling interface CPT601 and a sampling interface CPT602 are respectively provided before and after the fast switch K601, and the sampling data is uploaded to the DC / DC module subsystem controller; the signal input and output ends of the DC / DC module and the fast switch K601 are connected to the DC / DC module subsystem controller in communication;

[0122] The upload and receiving interfaces of the DC / DC module subsystem controller are connected to the power management controller in communication, the DC / DC module subsystem controller is connected to the monitoring node controller in communication via a physical communication bus, and the fast switch K601 is connected to the monitoring node controller.

[0123] The remote monitoring platform can set or adjust the power supply system working strategy of each monitoring node through the 5G network, or the on-site operator can use the in-station monitoring platform. The power supply system strategy in each monitoring node is implemented by the respective power management controller, with the main control goal of ensuring the normal and continuous power supply of the equipment in the monitoring node, and energy saving and consumption reduction as a further optimization goal. In the fully automatic operation state, the power management controller flexibly coordinates and controls the input power control of the energy storage subsystem, photovoltaic subsystem, wind power subsystem, and external power access subsystem according to the pre-set control strategy and actual working conditions, as well as the output power control of several DC / DC modules, and the removal of DC / DC module control under extreme conditions.

[0124] Each subsystem controller obtains the input, output, control, feedback, and sampling information of each module in the corresponding subsystem from the module controller of the module within its own subsystem for fault judgment and device self-protection; when it is judged to be an external fault, the switch of the corresponding module is tripped; among the self-protection functions, for situations that directly cause permanent damage to the device, the direct protection is locked and a fault signal is sent to the outside; for situations that will not cause permanent damage to the device, only a fault signal is sent without shutting down.

[0125] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the claims of this patent application.

Claims

1. A wireless monitoring system for freezing stations based on monitoring nodes with self-generated and self-supplied power supply, characterized in that: It includes freezing station equipment and remote monitoring equipment; the freezing station equipment includes a station controller, a station monitoring platform, a 5G gateway in the freezing station, a station gateway, several monitoring nodes and a station wireless network, and the remote monitoring equipment includes a remotely monitored 5G gateway and a remote monitoring platform; The in-station controller is respectively connected to the in-station monitoring platform, the 5G gateway, and the in-station gateway; the in-station gateway is connected to each monitoring node in the station via the in-station wireless network; The 5G gateway in the freezing station is connected to the cloud server through the 5G network, and the cloud server realizes data interaction with the remote monitoring platform through the remotely monitored 5G gateway; The monitoring node includes a monitoring node controller, a transceiver system, a field equipment control system, a field data collection system and a power supply system; The monitoring node controller is respectively connected to the transceiver system, the field equipment control system, the field data collection system and the power supply system through physical communication lines to achieve two-way data interaction; the monitoring node controller is also respectively connected to the subsystem controller in the power supply system through a physical communication bus; The power supply system includes a power management controller, an energy storage subsystem, a photovoltaic subsystem, a wind subsystem, an external power access subsystem and several DC / DC module subsystems; the monitoring node controller uses the power management controller to interact with the energy storage subsystem, the photovoltaic subsystem, the wind subsystem, the external power access subsystem and several DC / DC module subsystems, and the monitoring node controller interacts with the energy storage subsystem, the photovoltaic subsystem, the wind subsystem, the external power access subsystem and several DC / DC module subsystems through a physical communication bus. The power supply system also includes a system DC bus; the energy storage subsystem, the photovoltaic subsystem, the wind power subsystem and the external power access subsystem are respectively connected to the system DC bus through the fast switches in their respective subsystems, and the system DC bus is then connected to the DC / DC module subsystem through the fast switches in the DC / DC module subsystem to realize power supply; The power management controller includes a power management main control unit, a power generation coordination control unit and a power supply coordination control unit; the power generation coordination control unit is used to coordinate the power generation of the energy storage subsystem, the photovoltaic subsystem, the wind electronic system and the external power access subsystem, and the power supply coordination control unit coordinates the power supply of several DC / DC module subsystems; the power management main control unit realizes interactive control with the power generation coordination control unit and the power supply coordination control unit respectively; Energy storage subsystem, realizing the backup power function within the control node; The energy storage subsystem includes an energy storage subsystem controller, several energy storage element groups and several energy storage bidirectional modules; the several energy storage element groups are respectively connected to the several energy storage bidirectional modules, and connected to the internal bus, and then connected to the system DC bus through the fast switch K101; the signal input and output ends of the energy storage bidirectional module and the fast switch K101 are connected to the energy storage subsystem controller in communication, and sampling interfaces CPT101 and CPT102 are respectively provided before and after the fast switch K101 is connected, and the sampling data is uploaded to the energy storage subsystem controller; The upload and receiving interfaces of the energy storage subsystem controller are connected to the power management controller, and the energy storage subsystem controller is connected to the monitoring node controller via a physical communication bus; the fast switch K101 is connected to the monitoring node controller; The energy storage bidirectional module includes an energy storage bidirectional module controller, a manual switch SW11, an energy storage element side soft start switch group K11, a buck-boost bidirectional circuit unit IGBT11 and a bus side soft start switch group K12; the energy storage element group is connected to the energy storage element side soft start switch group K11 through the manual switch SW11, and then connected to the internal bus through the buck-boost bidirectional circuit unit IGBT11 and the bus side soft start switch group K12; the signal input and output ends of the energy storage element side soft start switch group K11, the buck-boost bidirectional circuit unit IGBT11 and the bus side soft start switch group K12 are communicatively connected with the energy storage bidirectional module controller, the output end of the energy storage element side soft start switch group K11 is provided with a sampling interface CPT11, and the sampling data is uploaded to the energy storage bidirectional module controller; the output end of the bus side soft start switch group K12 is provided with a sampling interface CPT12, and the sampling data is uploaded to the energy storage bidirectional module controller; Photovoltaic subsystem and wind electronic system to realize the self-generation function within the monitoring node; The photovoltaic subsystem includes a photovoltaic subsystem controller, a number of photovoltaic strings and a number of photovoltaic input modules; the photovoltaic strings are respectively connected to the photovoltaic input modules, and connected to the internal bus, and then connected to the system DC bus through the fast switch K201; the signal input and output ends of the photovoltaic input module and the fast switch K201 are connected to the photovoltaic subsystem controller in communication, and the sampling interface CPT201 and the sampling interface CPT202 are respectively provided before and after the fast switch K201 is connected, and the sampling data is uploaded to the photovoltaic subsystem controller; The upload and receiving interfaces of the photovoltaic subsystem controller are connected to the power management controller in communication, and the photovoltaic subsystem controller is connected to the monitoring node controller in communication via a physical communication bus; the fast switch K201 is connected to the monitoring node controller; The photovoltaic input module includes a photovoltaic input module controller, a manual switch SW21, a soft start switch group K21 and a boost circuit unit IGBT21; the photovoltaic string is connected to the soft start switch group K21 through the manual switch SW21, and then connected to the internal bus through the boost circuit unit IGBT21; the signal input and output ends of the soft start switch group K21 and the boost circuit unit IGBT21 are connected to the photovoltaic input module controller, and the output end of the soft start switch group K21 is provided with a sampling interface CPT21, and the sampling data is uploaded to the photovoltaic input module controller; the output end of the boost circuit unit IGBT21 is provided with a sampling interface CPT22, and the sampling data is uploaded to the photovoltaic input module controller; The wind sub-system includes a wind sub-system controller, several wind turbines and several wind power input modules; several wind turbines are respectively connected to several wind power input modules, and connected to the internal bus, and then connected to the system DC bus through the fast switch K301; the signal input and output ends of the wind sub-input module and the fast switch K301 are connected to the wind sub-system controller for communication, and sampling interfaces CPT301 and CPT302 are respectively provided before and after the fast switch K301 is connected, and the sampling data is uploaded to the wind sub-system controller; The upload and receiving interfaces of the wind sub-system controller are connected to the power management controller in communication, and the wind sub-system controller is connected to the monitoring node controller in communication via a physical communication bus; the fast switch K301 is connected to the monitoring node controller; The wind power input module includes a wind power input module controller, a manual switch SW31, an uncontrolled rectifier bridge D31, a soft start switch group K31 and a boost circuit unit IGBT31; the wind turbine is connected to the soft start switch group K31 through the manual switch SW31 and the uncontrolled rectifier bridge D31, and then connected to the internal bus through the boost circuit unit IGBT31; the signal input and output ends of the soft start switch group K31 and the boost circuit unit IGBT31 are connected to the wind power input module controller, and the output end of the soft start switch group K31 is provided with a sampling interface CPT31, and the sampling data is uploaded to the wind power input module controller; the output end of the boost circuit unit IGBT31 is provided with a sampling interface CPT32, and the sampling data is uploaded to the wind power input module controller; External power access subsystem, used for direct access to power distribution network; The external power access subsystem includes an external power access subsystem controller, an AC access module and a DC access module; the external AC power supply and the external DC power supply are respectively connected to the internal bus through the AC access module and the DC access module, and then connected to the system DC bus through the fast switch K401; the signal input and output ends of the AC access module, the DC access module and the fast switch K401 are communicatively connected to the external power access subsystem controller, and sampling interfaces CPT401 and CPT402 are respectively provided before and after the fast switch K401 is connected, and the sampling data is uploaded to the external power access subsystem controller; The upload and receiving interfaces of the external power access subsystem controller are connected to the power management controller, and the external power access subsystem controller is connected to the monitoring node controller through a physical communication bus; the fast switch K401 is connected to the monitoring node controller; The AC access module includes an AC access module controller, a manual switch SW41, an uncontrolled rectifier bridge D41, a soft start switch group K41 and a buck circuit unit IGBT41; the external AC power supply is connected to the soft start switch group K41 through the manual switch SW41 and the uncontrolled rectifier bridge D41, and then connected to the internal bus through the buck circuit unit IGBT41; the signal input and output ends of the soft start switch group K41 and the buck circuit unit IGBT41 are communicatively connected with the AC access module controller, and the output end of the soft start switch group K41 is provided with a sampling interface CPT41, and the sampling data is uploaded to the AC access module controller; the output end of the buck circuit unit IGBT41 is provided with a sampling interface CPT42, and the sampling data is uploaded to the AC access module controller; The DC access module includes a DC access module controller, a manual switch SW51, an external power supply side soft start switch group K51, a buck-boost bidirectional circuit unit IGBT51 and a bus side soft start switch group K52; the external DC power supply is connected to the buck-boost bidirectional circuit unit IGBT51 through the manual switch SW51 and the external power supply side soft start switch group K51, and then connected to the internal bus through the bus side soft start switch group K52; the signal input and output ends of the soft start switch group K51, the buck-boost bidirectional circuit unit IGBT51 and the bus side soft start switch group K52 are communicatively connected with the DC access module controller, the output end of the external power supply side soft start switch group K51 is provided with a sampling interface CPT51, and the sampling data is uploaded to the DC access module controller; the output end of the bus side soft start switch group K52 is provided with a sampling interface CPT52, and the sampling data is uploaded to the DC access module controller; The DC / DC module subsystem includes a DC / DC module subsystem controller and several DC / DC modules; the system DC bus is connected to the DC / DC module through a fast switch K601, and then power is supplied; a sampling interface CPT601 and a sampling interface CPT602 are respectively provided before and after the fast switch K601, and the sampling data is uploaded to the DC / DC module subsystem controller; the signal input and output ends of the DC / DC module and the fast switch K601 are connected to the DC / DC module subsystem controller in communication; The upload and receiving interfaces of the DC / DC module subsystem controller are connected to the power management controller in communication, and the DC / DC module subsystem controller is connected to the monitoring node controller in communication via a physical communication bus; the fast switch K601 is connected to the monitoring node controller.

2. The freezing station wireless monitoring system based on monitoring nodes with self-generated and self-supplied power supply according to claim 1 is characterized in that: The transceiver system includes a transceiver, a transceiver front-end module and an antenna; The transceiver is provided with a transceiver controller, a digital baseband system, a receiver, a synthesizer, a transmitter, a transceiver power amplifier and a low noise amplifier; the transceiver front-end module is provided with a transceiver front-end module control unit, a transceiver switching switch, a transmission matching network, a reception matching network, a transceiver front-end power amplifier and a harmonic filter; The monitoring node controller and the transceiver controller realize a two-way communication connection. The transceiver controller transmits the obtained communication signal to the transmitter through the digital baseband system. The transmitter sends the obtained communication signal to the transceiver power amplifier for amplification, or the digital baseband system sends it to the transmitter through the synthesizer. The signal output end of the transmitter is communicatively connected with the input end of the transceiver power amplifier; the transceiver power amplifier transmits the amplified communication signal to the transmission matching network, and then communicates with the first end of the transceiver switching switch through the transceiver front-end power amplifier and the harmonic filter; the second end of the transceiver switching switch is connected to the antenna communication network. The third end of the transceiver switching switch is communicatively connected to the signal input end of the receiving matching network, and the signal output end of the receiving matching network is communicatively connected to the signal input end of the low noise amplifier. The receiver receives the signal of the low noise amplifier, transmits it to the digital baseband system, and transmits it back to the monitoring node controller through the transceiver controller; the transceiver front-end module control unit performs power adjustment on the transceiver front-end power amplifier, and the transceiver front-end module control unit performs logic control on the transceiver switching switch; the communication signal of the digital baseband system is transmitted to the receiver through the synthesizer; the transceiver controller is communicatively connected to the ROM memory and the RAM memory respectively.

3. The freezing station wireless monitoring system based on monitoring nodes with self-generated and self-supplied power supply according to claim 1 is characterized in that: The field equipment control system includes a field equipment controller, a field equipment manual operation platform and construction equipment; the field equipment controller is provided with a field equipment main control unit, a digital quantity transceiver control unit, an analog quantity transceiver control unit, a frequency converter coordination control unit and a plurality of electrical circuit control units; The main control unit of the field equipment is communicatively connected with the monitoring node controller; The main control unit of the field equipment is connected to the manual operation platform of the field equipment through which the field operator manually operates the construction equipment on site; The main control unit of the field equipment is respectively connected to the digital quantity transceiver control unit, the analog quantity transceiver control unit, the inverter coordination control unit and several electrical circuit control units for data exchange.

4. The freezing station wireless monitoring system based on monitoring nodes with self-generated and self-supplied power supply according to claim 3 is characterized in that: The digital quantity transceiver control unit is provided with a plurality of digital quantity input interfaces and a plurality of digital quantity output interfaces, and the digital quantity input interface and the digital quantity output interface of the digital quantity transceiver control unit are respectively communicatively connected with the digital quantity output interface and the digital quantity input interface of the construction equipment; The analog quantity transceiver control unit is provided with a plurality of analog quantity input interfaces and a plurality of analog quantity output interfaces, and the analog quantity input interface and the analog quantity output interface of the analog quantity transceiver control unit are respectively communicatively connected with the analog quantity output interface and the analog quantity input interface of the construction equipment; The frequency converter coordination control unit is provided with a plurality of independent parameter feedback interfaces, parameter setting interfaces, state feedback interfaces and function enabling interfaces respectively, and the parameter feedback interfaces, parameter setting interfaces, state feedback interfaces and function enabling interfaces are respectively communicated and connected with the parameter feedback interfaces, parameter setting interfaces, state feedback interfaces and function enabling interfaces of the frequency converter of the construction equipment; The electrical circuit control unit is respectively provided with a signal acquisition interface, a separation and closing feedback interface, a switch-opening control interface and a switch-closing control interface, which are respectively communicatively connected with the signal acquisition interface, separation and closing feedback interface, switch-opening control interface and switch-closing control interface of the electrical circuit of the construction equipment.

5. The freezing station wireless monitoring system based on monitoring nodes with self-generated and self-supplied power supply according to claim 1 is characterized in that: The field data collection system includes a field data collector and a sensor; the field data collector is provided with a field data collection unit, a digital quantity transceiver control unit and an analog quantity transceiver control unit; the field data collection unit is communicatively connected with the monitoring node controller; The digital quantity transceiver control unit is provided with a plurality of digital quantity input interfaces and a plurality of digital quantity output interfaces, and the digital quantity input interface and the digital quantity output interface of the digital quantity transceiver control unit are respectively communicatively connected with the digital quantity output interface and the digital quantity input interface of the sensor; The analog quantity transceiver control unit is provided with a plurality of analog quantity input interfaces and a plurality of analog quantity output interfaces. The analog quantity input interface and the analog quantity output interface of the analog quantity transceiver control unit are respectively communicatively connected with the analog quantity output interface and the analog quantity input interface of the sensor.

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