Direct current remote supply communication system based on cable trench

Abstract

The invention relates to the field of electric power engineering, in particular to a direct current remote supply communication system based on a cable trench, which comprises a monitoring terminal, a comprehensive monitoring platform, a local module and a remote module, compared with a direct-current remote supply technology in the prior art, the direct-current remote supply device has certain power supply capacity for equipment in a cable trench, but has the defects that on one hand, different power supply requirements of different equipment cannot be met, for example, the power supply requirement of timing starting or manual control starting is needed, and resource waste is caused, and on the other hand, the direct-current remote supply device cannot meet the power supply requirements. The power supply state cannot be sensed, and problems cannot be found in time; the communication system transmits the power supply condition of the direct-current remote power supply equipment to the platform through the network communication technology, can monitor the power supply state in real time, has higher reliability, can check the state of a power supply line through the system platform, can perform early warning in time, improves the fault processing capability, can control power supply according to the requirements of the electric equipment, and improves the power supply efficiency. And unnecessary power consumption is reduced.

Description

Technical Field

[0001] The invention relates to the field of electric power engineering, and in particular to a direct current remote supply communication system based on a cable trench. Background Art

[0002] The power supply of monitoring, detection and communication equipment in the cable trench requires a stable power supply to ensure its normal operation. Due to the special environment in the cable trench and the fact that many devices require DC power supply and do not have the conditions to use AC power, a reliable power supply is needed to ensure the stability and reliability of the equipment. At the same time, although batteries can be used as a backup power supply, there are also some problems during use, such as the need for regular maintenance, limited service life, and easy theft.

[0003] Therefore, DC remote power supply technology is used in cable trenches. The existing DC remote power supply equipment is mainly composed of local modules, remote modules, and lightning protection devices. It has a certain ability to supply power to equipment in the cable trench. The local module is mainly connected to a switching power supply, generally a 48V power supply, which is transmitted through the cable after internal boosting. The current DC remote power supply equipment has some shortcomings. First, it cannot adapt to the different power supply requirements of different equipment. For example, some equipment only needs a fixed time or control start-up, which causes the DC remote power supply equipment to lose more power during transmission than the power consumed by the electrical equipment, resulting in a waste of resources. Second, it is impossible to perceive the power supply status and cannot detect problems in time.

[0004] In view of the problem that the above-mentioned DC remote power supply technology cannot adapt to the different power supply requirements of different equipment, such as the power supply requirements that need to be turned on at a scheduled time or manually controlled, resulting in a waste of resources, a DC remote power supply communication system based on a cable trench can be provided. By using wireless communication technology, the power supply can be controlled according to the needs of the power-consuming equipment, thereby reducing unnecessary energy consumption. Summary of the invention

[0005] In order to overcome the problem that DC remote power supply technology cannot adapt to the different power supply requirements of different equipment, such as the power supply requirements that need to be turned on at a scheduled time or manually controlled, resulting in a waste of resources.

[0006] The technical solution of the present invention is: a DC remote supply communication system based on a cable trench, comprising:

[0007] Monitoring terminal, used to provide a user interface for users to display system operation status, power quality and fault information;

[0008] Integrated monitoring platform, used to view the operation data of local modules and remote modules, and to remotely control and diagnose faults of local modules and remote modules;

[0009] The local module is used to regulate the input power under the control of the integrated monitoring platform, so as to provide stable power input to the remote module;

[0010] The remote module is used to further process the electric energy input processed by the local module and convert the input electric energy into electric energy output with suitable parameters.

[0011] Preferably, the physical carrier of the monitoring terminal is a smart terminal device, wherein the smart terminal device includes a mobile phone, a computer and a tablet computer; the software carrier of the monitoring terminal is a web program, a mini-program and an APP software; the monitoring terminal is wirelessly connected to the comprehensive monitoring platform, and the wireless communication between the monitoring terminal and the comprehensive monitoring platform adopts the encryption protocol SSL / TLS protocol communication.

[0012] Preferably, when the integrated monitoring platform checks the operating data of the local modules and remote modules, it is divided into multiple management areas according to the cable segments of the cable trench. Each management area has multiple local modules. The integrated monitoring platform and the local modules are connected through a wireless network and a wired network.

[0013] As a preferred option, the integrated monitoring platform also includes the following functions:

[0014] A11: reading the control instructions and task instructions of the monitoring terminal, and forwarding the control instructions and task instructions of the monitoring terminal to the local module;

[0015] A12: Record and archive the control instructions and task instructions sent by the monitoring terminal;

[0016] A13: Read and identify the status information of the local module and the remote module;

[0017] A14: When a major abnormality occurs in the local module or remote module, an alarm is sent to the monitoring terminal.

[0018] Preferably, the integrated monitoring platform includes the following steps when reading and identifying the status information of the local module and the remote module:

[0019] S11: The local module and the remote module periodically send status information to the integrated monitoring platform;

[0020] S12: The integrated monitoring platform reads and identifies the status information sent by the local module and the remote module, and determines the abnormal conditions of the local module and the remote module;

[0021] S13: At the same time, when the working state of the local module is abnormal, the local module sends abnormal information to the integrated monitoring platform, and the integrated monitoring platform archives the received information;

[0022] S14: The integrated monitoring platform sends the abnormal conditions of the local module and the remote module to the monitoring terminal.

[0023] Preferably, through network communication technology, the system can transmit the power supply status of the DC remote supply equipment to the central monitoring platform in real time and accurately; this function enables operation and maintenance personnel to grasp the operating status of the power supply system anytime and anywhere, whether it is voltage fluctuations, current changes or equipment failures, they can be monitored at the first time; this real-time monitoring capability provides a solid guarantee for the stable operation of the system, effectively reduces the risk of equipment damage or production interruption due to power supply problems, and can intelligently control the power supply according to the needs of power-consuming equipment; by accurately sensing the real-time load conditions of power-consuming equipment, the system can automatically adjust the power supply parameters to ensure that the equipment operates in the best condition while avoiding unnecessary waste of electricity.

[0024] Preferably, the local module includes a rectifier, a booster and a local protection device. The rectifier is used to convert the AC power input to the local module into DC power. The booster is used to boost the electric energy converted into DC power and increase the voltage of the DC power to a voltage level suitable for long-distance transmission. The local protection device is used to protect the local module to prevent damage to the local module. The local module is connected to the remote module via a transmission cable.

[0025] Preferably, the boost device includes an adjustable boost circuit, and the adjustable boost circuit is used to boost the electric energy converted into direct current according to set boost parameters.

[0026] Preferably, the local end protection device includes the following functions:

[0027] A21: Output overvoltage protection function. When the output voltage of the local module is higher than DC 400V, the local protection device triggers the overvoltage protection and stops the output to ensure the reliability of the input voltage.

[0028] A22: Output overcurrent protection function. When the output current of the local module exceeds the rated value, the local protection device triggers the overcurrent protection and stops the output, ensuring the safe and reliable operation of the cable;

[0029] A23: Open circuit protection. When the transmission cable fails, the local end protection device triggers the open circuit protection and stops output to ensure the safety of personnel and equipment.

[0030] A24: Short circuit protection. When the positive and negative poles of the local module are short-circuited, or when either the positive or negative pole is short-circuited to the ground, the local protection device cuts off the high voltage output.

[0031] A25: Strong current intrusion protection. When the input and output ends of the local module are short-circuited, the local protection device cuts off the high voltage output.

[0032] A26: Line-to-ground leakage current protection. When the local protection device detects the line-to-ground leakage current caused by electric shock, it will directly cut off the high-voltage output at the local end.

[0033] Preferably, the remote module includes a step-down device and a remote protection device. The step-down device is used to step down the high-voltage direct current input to the remote module, reducing the voltage of the high-voltage direct current to the voltage level required by the device connected to the remote module. The remote protection device is used to protect the remote module and the device connected to the remote module from power failure and other factors.

[0034] As a preferred embodiment, a user management module is also included, which is used to provide user authority management and authentication functions to ensure that only authorized users can access the data in the integrated monitoring platform. The user management module includes the following steps when managing user authority:

[0035] S21: The user management module logs in to the software carrier through the smart terminal device, and the software carrier sends a login application to the integrated monitoring platform;

[0036] S22: The staff verifies the application through the logged-in monitoring terminal and the integrated monitoring platform;

[0037] S23: After verification, the user is granted basic viewing permissions;

[0038] S24: The staff modifies the user's permissions through the integrated monitoring platform.

[0039] Beneficial effects of the present invention:

[0040] 1. Compared with the DC remote supply technology in the prior art, which is mainly composed of a local module, a remote module, and a lightning protection device, it has a certain power supply capacity for the equipment in the cable trench; but there are some disadvantages. On the one hand, it cannot adapt to the different power supply requirements of different equipment, such as the power supply requirements that need to be turned on at a scheduled time or manually controlled, resulting in a waste of resources. On the other hand, it is impossible to perceive the power supply status and cannot find problems in time. The communication system transmits the power supply status of the DC remote supply equipment to the platform through network communication technology, and can monitor the power supply status in real time, with higher reliability. Through the system platform, the power supply line status can be viewed, and timely warning can be given to improve the fault handling capability. At the same time, the power supply can be controlled according to the needs of the power-consuming equipment to reduce unnecessary power consumption;

[0041] 2. Through network communication technology, the system can transmit the power supply status of DC remote power supply equipment to the central monitoring platform in real time and accurately; this function enables operation and maintenance personnel to grasp the operating status of the power supply system anytime and anywhere, whether it is voltage fluctuation, current change or equipment failure, it can be monitored at the first time; this real-time monitoring capability provides a solid guarantee for the stable operation of the system, effectively reduces the risk of equipment damage or production interruption caused by power supply problems, and can intelligently control the power supply according to the needs of power-consuming equipment; by accurately sensing the real-time load status of power-consuming equipment, the system can automatically adjust the power supply parameters to ensure that the equipment operates in the best state while avoiding unnecessary waste of electricity;

[0042] 3. By adopting modular design, the DC remote power supply communication system greatly improves the construction convenience and system flexibility; modular design means that the entire system is divided into multiple independent and fully functional units, each module has specific functions and interfaces, and can be installed, debugged and maintained separately without shutting down or disassembling the entire system. The power supply function can be used by simply connecting the local module and the remote module. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 Shown is a schematic diagram of the structure of a DC remote power supply communication system based on a cable trench of the present invention;

[0044] Figure 2 The flowchart of remote control of the integrated monitoring platform in the cable trench-based DC remote supply communication system of the present invention is shown;

[0045] Figure 3 Shown is a schematic diagram of the process of fault diagnosis performed by the integrated monitoring platform in the cable trench-based DC remote supply communication system of the present invention. DETAILED DESCRIPTION

[0046] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0047] See also Figure 1 The present invention provides an embodiment: a DC remote supply communication system based on a cable trench, comprising:

[0048] Monitoring terminal, used to provide a user interface for users to display system operation status, power quality and fault information;

[0049] Integrated monitoring platform, used to view the operation data of local modules and remote modules, and to remotely control and diagnose faults of local modules and remote modules;

[0050] The local module is used to regulate the input power under the control of the integrated monitoring platform, so as to provide stable power input to the remote module;

[0051] The remote module is used to further process the electric energy input processed by the local module and convert the input electric energy into electric energy output with suitable parameters.

[0052] Preferably, the physical carrier of the monitoring terminal is a smart terminal device, wherein the smart terminal device includes a mobile phone, a computer and a tablet computer; the software carrier of the monitoring terminal is a web program, a mini-program and an APP software; the monitoring terminal is wirelessly connected to the comprehensive monitoring platform, and the wireless communication between the monitoring terminal and the comprehensive monitoring platform adopts the encryption protocol SSL / TLS protocol communication.

[0053] See also Figure 2-3 In this embodiment, when the integrated monitoring platform checks the operating data of the local module and the remote module, it is divided into multiple management areas according to the cable segments of the cable trench. Each management area has multiple local modules. The integrated monitoring platform and the local modules are connected through a wireless network and a wired network.

[0054] As a preferred option, the integrated monitoring platform also includes the following functions:

[0055] A11: reading the control instructions and task instructions of the monitoring terminal, and forwarding the control instructions and task instructions of the monitoring terminal to the local module;

[0056] A12: Record and archive the control instructions and task instructions sent by the monitoring terminal;

[0057] A13: Read and identify the status information of the local module and the remote module;

[0058] A14: When a major abnormality occurs in the local module or remote module, an alarm is sent to the monitoring terminal.

[0059] Preferably, the integrated monitoring platform includes the following steps when reading and identifying the status information of the local module and the remote module:

[0060] S11: The local module and the remote module periodically send status information to the integrated monitoring platform;

[0061] S12: The integrated monitoring platform reads and identifies the status information sent by the local module and the remote module, and determines the abnormal conditions of the local module and the remote module;

[0062] S13: At the same time, when the working state of the local module is abnormal, the local module sends abnormal information to the integrated monitoring platform, and the integrated monitoring platform archives the received information;

[0063] S14: The integrated monitoring platform sends the abnormal conditions of the local module and the remote module to the monitoring terminal.

[0064] Preferably, through network communication technology, the system can transmit the power supply status of the DC remote supply equipment to the central monitoring platform in real time and accurately; this function enables operation and maintenance personnel to grasp the operating status of the power supply system anytime and anywhere, whether it is voltage fluctuations, current changes or equipment failures, they can be monitored at the first time; this real-time monitoring capability provides a solid guarantee for the stable operation of the system, effectively reduces the risk of equipment damage or production interruption due to power supply problems, and can intelligently control the power supply according to the needs of power-consuming equipment; by accurately sensing the real-time load conditions of power-consuming equipment, the system can automatically adjust the power supply parameters to ensure that the equipment operates in the best condition while avoiding unnecessary waste of electricity.

[0065] Preferably, the local module includes a rectifier, a booster and a local protection device. The rectifier is used to convert the AC power input to the local module into DC power. The booster is used to boost the electric energy converted into DC power and increase the voltage of the DC power to a voltage level suitable for long-distance transmission. The local protection device is used to protect the local module to prevent damage to the local module. The local module is connected to the remote module via a transmission cable.

[0066] Preferably, the boost device includes an adjustable boost circuit, and the adjustable boost circuit is used to boost the electric energy converted into direct current according to set boost parameters.

[0067] Preferably, the local end protection device includes the following functions:

[0068] A21: Output overvoltage protection function. When the output voltage of the local module is higher than DC 400V, the local protection device triggers the overvoltage protection and stops the output to ensure the reliability of the input voltage.

[0069] A22: Output overcurrent protection function. When the output current of the local module exceeds the rated value, the local protection device triggers the overcurrent protection and stops the output, ensuring the safe and reliable operation of the cable;

[0070] A23: Open circuit protection. When the transmission cable fails, the local end protection device triggers the open circuit protection and stops output to ensure the safety of personnel and equipment.

[0071] A24: Short circuit protection. When the positive and negative poles of the local module are short-circuited, or when either the positive or negative pole is short-circuited to the ground, the local protection device cuts off the high voltage output.

[0072] A25: Strong current intrusion protection. When the input and output ends of the local module are short-circuited, the local protection device cuts off the high voltage output.

[0073] A26: Line-to-ground leakage current protection. When the local protection device detects the line-to-ground leakage current caused by electric shock, it will directly cut off the high-voltage output at the local end.

[0074] Preferably, the remote module includes a step-down device and a remote protection device. The step-down device is used to step down the high-voltage direct current input to the remote module, reducing the voltage of the high-voltage direct current to the voltage level required by the device connected to the remote module. The remote protection device is used to protect the remote module and the device connected to the remote module from power failure and other factors.

[0075] As a preferred embodiment, a user management module is also included, which is used to provide user authority management and authentication functions to ensure that only authorized users can access the data in the integrated monitoring platform. The user management module includes the following steps when managing user authority:

[0076] S21: The user management module logs in to the software carrier through the smart terminal device, and the software carrier sends a login application to the integrated monitoring platform;

[0077] S22: The staff verifies the application through the logged-in monitoring terminal and the integrated monitoring platform;

[0078] S23: After verification, the user is granted basic viewing permissions;

[0079] S24: The staff modifies the user's permissions through the integrated monitoring platform.

[0080] Through the above steps, compared with the DC remote supply technology in the prior art, which is mainly composed of a local module, a remote module, and a lightning protection device, it has a certain ability to supply power to the equipment in the cable trench; but there are some disadvantages. On the one hand, it cannot adapt to the different power supply requirements of different equipment, such as the power supply requirements that need to be turned on at a scheduled time or manually controlled, resulting in a waste of resources. On the other hand, it is impossible to perceive the power supply status and cannot discover problems in time. The communication system transmits the power supply status of the DC remote supply equipment to the platform through network communication technology, and can monitor the power supply status in real time, with higher reliability. Through the system platform, the power supply line status can be viewed, and timely warning can be given to improve the fault handling capability. At the same time, the power supply can be controlled according to the needs of the electrical equipment to reduce unnecessary energy consumption.

[0081] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the spirit of the present invention.

Claims

1. A DC remote power supply communication system based on cable trench; characterized in that: Included are: Monitoring terminal, used to provide a user interface for users to display system operation status, power quality and fault information; Integrated monitoring platform, used to view the operation data of local modules and remote modules, and to remotely control and diagnose faults of local modules and remote modules; The local module is used to regulate the input power under the control of the integrated monitoring platform, so as to provide stable power input to the remote module; The remote module is used to further process the electric energy input processed by the local module and convert the input electric energy into electric energy output with suitable parameters.

2. A DC remote power supply communication system based on cable trench according to claim 1, characterized in that: The physical carrier of the monitoring terminal is a smart terminal device, which includes mobile phones, computers and tablet computers. The software carrier of the monitoring terminal is a web program, a small program and an APP software. The monitoring terminal is wirelessly connected to the comprehensive monitoring platform, and the wireless communication between the monitoring terminal and the comprehensive monitoring platform adopts the encryption protocol SSL / TLS protocol communication.

3. A DC remote power supply communication system based on cable trench according to claim 2, characterized in that: When the integrated monitoring platform checks the operating data of the local modules and remote modules, it is divided into multiple management areas according to the cable segments of the cable trench. Each management area has multiple local modules. The integrated monitoring platform and the local modules are connected through a wireless network and a wired network.

4. A DC remote power supply communication system based on cable trench according to claim 3, characterized in that: The integrated monitoring platform also includes the following functions: A11: reading the control instructions and task instructions of the monitoring terminal, and forwarding the control instructions and task instructions of the monitoring terminal to the local module; A12: Record and archive the control instructions and task instructions sent by the monitoring terminal; A13: Read and identify the status information of the local module and the remote module; A14: When a major abnormality occurs in the local module or remote module, an alarm is sent to the monitoring terminal.

5. A DC remote power supply communication system based on cable trench according to claim 4, characterized in that: The integrated monitoring platform reads and identifies the status information of the local module and the remote module, including the following steps: S11: The local module and the remote module periodically send status information to the integrated monitoring platform; S12: The integrated monitoring platform reads and identifies the status information sent by the local module and the remote module, and determines the abnormal conditions of the local module and the remote module; S13: At the same time, when the working state of the local module is abnormal, the local module sends abnormal information to the integrated monitoring platform, and the integrated monitoring platform archives the received information; S14: The integrated monitoring platform sends the abnormal conditions of the local module and the remote module to the monitoring terminal.

6. A DC remote power supply communication system based on cable trench according to claim 5, characterized in that: The local module includes a rectifier, a booster and a local protection device. The rectifier is used to convert the AC power input to the local module into DC power. The booster is used to boost the electric energy converted into DC power and increase the voltage of DC power to a voltage level suitable for long-distance transmission. The local protection device is used to protect the local module to prevent damage to the local module. The local module is connected to the remote module through a transmission cable.

7. A DC remote power supply communication system based on cable trench according to claim 6, characterized in that: The boost device includes an adjustable boost circuit, which is used to boost the electric energy converted into direct current according to set boost parameters.

8. A DC remote power supply communication system based on cable trench according to claim 7, characterized in that: The local end protection device includes the following functions: A21: Output overvoltage protection function. When the output voltage of the local module is higher than DC 400V, the local protection device triggers the overvoltage protection and stops the output to ensure the reliability of the input voltage. A22: Output overcurrent protection function. When the output current of the local module exceeds the rated value, the local protection device triggers the overcurrent protection and stops the output, ensuring the safe and reliable operation of the cable; A23: Open circuit protection. When the transmission cable fails, the local end protection device triggers the open circuit protection and stops output to ensure the safety of personnel and equipment. A24: Short circuit protection. When the positive and negative poles of the local module are short-circuited, or when either the positive or negative pole is short-circuited to the ground, the local protection device cuts off the high voltage output. A25: Strong current intrusion protection. When the input and output ends of the local module are short-circuited, the local protection device cuts off the high voltage output. A26: Line-to-ground leakage current protection. When the local protection device detects the line-to-ground leakage current caused by electric shock, it will directly cut off the high-voltage output at the local end.

9. A DC remote power supply communication system based on cable trench according to claim 8, characterized in that: The remote module includes a step-down device and a remote protection device. The step-down device is used to step down the high-voltage direct current input to the remote module, reducing the voltage of the high-voltage direct current to the voltage level required by the device connected to the remote module. The remote protection device is used to protect the remote module and the device connected to the remote module from power failure and other factors.

10. A DC remote power supply communication system based on cable trench according to claim 9, characterized in that: It also includes a user management module, which is used to provide user authority management and authentication functions to ensure that only authorized users can access the data in the integrated monitoring platform. The user management module includes the following steps when managing user authority: S21: The user management module logs in to the software carrier through the smart terminal device, and the software carrier sends a login application to the integrated monitoring platform; S22: The staff verifies the application through the logged-in monitoring terminal and the integrated monitoring platform; S23: After verification, the user is granted basic viewing permissions; S24: The staff modifies the user's permissions through the integrated monitoring platform.

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