Intelligent monitoring system for construction site power distribution system

Abstract

The invention discloses an intelligent monitoring system for a construction site power distribution system, which comprises a monitoring computer, a first low-voltage power line carrier communicator, a second low-voltage power line carrier communicator and an automatic controller, and is characterized in that the first low-voltage power line carrier communicator and the automatic controller are respectively in strong current connection with the construction site power distribution system; the first low-voltage power line carrier communicator is in weak current connection with the automatic controller, the automatic controller is in weak current connection with the construction site power distribution system, and the monitoring computer and the second low-voltage power line carrier communicator are respectively in strong current connection with the construction site power distribution system; the monitoring computer is in weak current connection with the second low-voltage power line carrier communicator; and the monitoring computer and the plurality of automatic controllers jointly form a field bus system through a construction field power distribution system. Intelligent monitoring of the construction site power distribution system is realized, the cost is low, the monitoring efficiency of the construction site power distribution system is improved, and the safety and reliability of the construction site power distribution system are improved.

Description

Technical Field

[0001] The invention relates to power supply and distribution at a construction site, and in particular to an intelligent monitoring system for a power distribution system at a construction site. Background Art

[0002] The construction site power distribution system is temporary, which makes many engineering contractors unwilling to invest too much in it, let alone upgrade the system to automation. The manual monitoring of the construction site power distribution system has long been difficult to manage and has many violations, so it is necessary to implement intelligent automatic monitoring of the construction site power distribution system.

[0003] The invention application with application number CN202110465329.5 discloses an intelligent temporary distribution box for construction sites and a control method thereof, the invention application with application number CN201811505507.7 discloses a temporary power supply system for construction sites, and the invention application with application number CN201510025227.6 discloses an intelligent system for safe electricity use in construction and a method thereof. The design schemes of the above invention applications are very ingenious and can indeed realize intelligent monitoring of the power distribution system at the construction site, but there is also the disadvantage that the technology is complex and the cost is high, so it has not yet been widely promoted. Summary of the invention

[0004] The present invention aims to solve the above technical problems, thereby providing an intelligent monitoring system for a construction site power distribution system, solving the problems of technical complexity and high cost in implementing an intelligent automatic monitoring solution for a construction site power distribution system.

[0005] The present invention solves the technical problem and adopts the following technical solution: An intelligent monitoring system for a construction site power distribution system, comprising a monitoring computer, a first low-voltage power line carrier communicator, a second low-voltage power line carrier communicator and an automatic controller, wherein the first low-voltage power line carrier communicator and the automatic controller are respectively connected to the construction site power distribution system with strong electricity, the first low-voltage power line carrier communicator is connected to the automatic controller with weak electricity, the automatic controller is connected to the construction site power distribution system with weak electricity, and the monitoring computer and the second low-voltage power line carrier communicator are respectively connected to the construction site power distribution system with strong electricity; The monitoring computer is weakly connected to the second low-voltage power line carrier communicator. The monitoring computer and multiple automatic controllers together constitute a field bus system through the construction site power distribution system. The automatic controller and the monitoring computer are respectively connected to the bus through the first low-voltage power line carrier communicator and the second low-voltage power line carrier communicator to achieve communication.

[0006] Compared with the prior art, the present invention using the above technical solution has the following beneficial effects: Realize intelligent monitoring of the power distribution system on the construction site at low cost, improve the monitoring efficiency of the power distribution system on the construction site, and improve the safety and reliability of the power distribution system on the construction site.

[0007] Further, the optimization scheme of the present invention is: The automatic controller is a direct digital controller.

[0008] The automatic controller is a programmable logic controller.

[0009] The automatic controller is an embedded single chip microcomputer system. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural block diagram of the overall system of the present invention; Figure 2 This is a block diagram of the system structure of the first embodiment of the present invention; Figure 3 This is a structural block diagram of the system composition of the second embodiment of the present invention; Figure 4 This is a block diagram of the system structure of Embodiment 3 of the present invention; Figure 5 This is a structural block diagram of the system composition of the fourth embodiment of the present invention.

[0011] In the figure: on-site intelligent monitoring device 1; construction site power distribution system 2; first low-voltage power line carrier communicator 3; automatic controller 4; second low-voltage power line carrier communicator 5; monitoring computer 6. DETAILED DESCRIPTION

[0012] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0013] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. Embodiment 1

[0014] See also Figure 1 , Figure 2The present embodiment provides an intelligent monitoring system for a construction site power distribution system, which is composed of an on-site intelligent monitoring device 1, a construction site power distribution system 2, a second low-voltage power line carrier communicator 5 and a monitoring computer 6. The on-site intelligent monitoring device 1 is composed of a first low-voltage power line carrier communicator 3 and an automatic controller 4. The automatic controller 4 in the present embodiment is a direct digital controller (DDC), which is one type of automatic controller.

[0015] The first low-voltage power line carrier communicator 3 and the direct digital controller (DDC) are connected to the construction site power distribution system 2 with strong electricity, the first low-voltage power line carrier communicator 3 and the direct digital controller (DDC) are connected with weak electricity, the direct digital controller (DDC) is connected with the construction site power distribution system 2 with weak electricity, the monitoring computer 6 and the second low-voltage power line carrier communicator 5 are respectively connected with the construction site power distribution system 2 with strong electricity, the monitoring computer 6 and the second low-voltage power line carrier communicator 5 are connected with weak electricity, the monitoring computer 6 and multiple direct digital controllers (DDC) constitute a field bus system, and the monitoring computer 6 communicates with multiple direct digital controllers (DDC) respectively. The direct digital controller (DDC) reads the opening and closing state signals and current signals of the corresponding switches in the construction site power distribution system 2, sends a tripping command to a specific switch according to the instructions of the monitoring computer 6, and reads the relevant parameters of the corresponding switches and electric meters in the construction site power distribution system 2 at the same time. Embodiment 2

[0016] See also Figure 3 The present embodiment provides an intelligent monitoring system for a construction site power distribution system, which is composed of an on-site intelligent monitoring device 1, a construction site power distribution system 2, a second low-voltage power line carrier communicator 5 and a monitoring computer 6. The on-site intelligent monitoring device 1 is composed of a first low-voltage power line carrier communicator 3 and an automatic controller 4. The automatic controller 4 in the present embodiment is a programmable logic controller (PLC), which is one type of automatic controller.

[0017] The first low-voltage power line carrier communicator 3 and the programmable logic controller (PLC) are connected to the construction site power distribution system 2 with strong electricity, the first low-voltage power line carrier communicator 3 and the programmable logic controller (PLC) are connected with weak electricity, the programmable logic controller (PLC) is connected with the construction site power distribution system 2 with weak electricity, the monitoring computer 6 and the second low-voltage power line carrier communicator 5 are respectively connected with the construction site power distribution system 2 with strong electricity, the monitoring computer 6 and the second low-voltage power line carrier communicator 5 are connected with weak electricity, the monitoring computer 6 and multiple programmable logic controllers (PLC) form a field bus system, and the monitoring computer 6 communicates with multiple programmable logic controllers (PLC) respectively. The programmable logic controller (PLC) reads the opening and closing state signals and current signals of the corresponding switches in the construction site power distribution system 2, sends a tripping command to a specific switch according to the instructions of the monitoring computer 6, and reads the relevant parameters of the corresponding switches and electric meters in the construction site power distribution system 2 at the same time. Embodiment 3

[0018] See also Figure 4 The present embodiment provides an intelligent monitoring system for a construction site power distribution system, which is composed of an on-site intelligent monitoring device 1, a construction site power distribution system 2, a second low-voltage power line carrier communicator 5 and a monitoring computer 6. The on-site intelligent monitoring device 1 is composed of a first low-voltage power line carrier communicator 3 and an automatic controller 4. The automatic controller 4 in the present embodiment is an embedded single-chip microcomputer system (SOC), which is one type of automatic controller.

[0019] The first low-voltage power line carrier communicator 3 and the embedded single-chip microcomputer system (SOC) are respectively connected to the construction site power distribution system 2 with strong electricity, the first low-voltage power line carrier communicator 3 and the embedded single-chip microcomputer system (SOC) are connected with weak electricity, the embedded single-chip microcomputer system (SOC) is connected with the construction site power distribution system 2 with weak electricity, the monitoring computer 6 and the second low-voltage power line carrier communicator 5 are respectively connected to the construction site power distribution system 2 with strong electricity, the monitoring computer 6 and the second low-voltage power line carrier communicator 5 are connected with weak electricity, the monitoring computer 6 and multiple embedded single-chip microcomputer systems (SOC) constitute a field bus system, and the monitoring computer 6 communicates with multiple embedded single-chip microcomputer systems (SOC). The embedded single-chip microcomputer system (SOC) reads the opening and closing state signals and current signals of the corresponding switches in the construction site power distribution system 2, sends a tripping command to a specific switch according to the instructions of the monitoring computer 6, and reads the relevant parameters of the corresponding switches and electric meters in the construction site power distribution system 2 at the same time. Embodiment 4

[0020] See also Figure 5, this embodiment provides an intelligent monitoring system for a construction site power distribution system, which is composed of an on-site intelligent monitoring device 1, a construction site power distribution system 2, a second low-voltage power line carrier communicator 5 and a monitoring computer 6. The on-site intelligent monitoring device 1 is composed of a first low-voltage power line carrier communicator 3 and an automatic controller 4. In this embodiment, multiple on-site intelligent monitoring devices 1 are arranged, and each on-site intelligent monitoring device 1 is respectively connected to the construction site power distribution system 2 with strong electricity and weak electricity. The first low-voltage power line carrier communicator 3 and the automatic controller 4 inside each on-site intelligent monitoring device 1 have both strong and weak electricity connections, and the monitoring computer 6 and the second low-voltage power line carrier communicator 5 are respectively connected to the construction site power distribution system 2 with strong electricity, and the monitoring computer 6 and the second low-voltage power line carrier communicator 5 are connected with weak electricity. Such an arrangement and connection constitutes a field bus system.

[0021] A monitoring computer 6 and multiple automatic controllers 4 together form a field bus system through the construction site power distribution system 2. The construction site power distribution system 2 plays the function of the field bus. The monitoring computer 6 and each automatic controller 4 are connected to the bus via a second low-voltage power line carrier communicator 5 and a low-voltage power line carrier communicator 3 to achieve communication.

[0022] The working principle of this embodiment is as follows: when the operator sends a tripping command to a switch on the monitoring computer 6, the monitoring computer 6 packages the operation command together with the relevant equipment address, transmission check code and other information into a communication data packet, and sends the communication data packet to the second low-voltage power line carrier communicator 5. The second low-voltage power line carrier communicator 5 modulates the communication data packet into a carrier signal and sends it to the construction site power distribution system 2. The first low-voltage power line carrier communicator 3 receives the carrier signal from the construction site power distribution system 2 and demodulates it back to a communication data packet. The communication data packet is sent to the automatic controller 4. The automatic controller 4 stores and processes the communication data packet, and then performs a tripping operation on the corresponding switch according to the instructions in the packet, and sends the switch status information after the operation back to the monitoring computer 6.

[0023] The process of uploading information by the automatic controller 4 is as follows: the automatic controller 4 collects and receives the operating data of the relevant equipment in the construction site power distribution system 2, stores the data together with the relevant equipment address, transmission check code and other information into a communication data packet, and sends the communication data packet to the first low-voltage power line carrier communicator 3. The first low-voltage power line carrier communicator 3 modulates the communication data packet into a carrier signal and sends it to the construction site power distribution system 2. The second low-voltage power line carrier communicator 5 receives the carrier signal from the construction site power distribution system 2 and demodulates it back into a communication data packet. The communication data packet is sent to the monitoring computer 6, and the monitoring computer 6 stores and processes the data.

[0024] The physical layout features of this embodiment are as follows: the monitoring computer 6 and the second low-voltage power line carrier communicator 5 are arranged in pairs in the monitoring room or office, the automatic controller 4 and the first low-voltage power line carrier communicator 3 are arranged in pairs, each pair constitutes a set of on-site intelligent monitoring devices, the on-site intelligent monitoring devices are arranged in the on-site power distribution device (distribution box or distribution cabinet), and each on-site power distribution device is arranged with a set of on-site intelligent monitoring devices. There are many on-site power distribution devices, so there are also many on-site intelligent monitoring devices. In this way, a monitoring computer 6 and multiple automatic controllers 4 jointly constitute a field bus system based on the construction site power distribution system. The construction site power distribution system 2 plays the function of the field bus. The monitoring computer 6 and each automatic controller 4 are connected to the bus through the low-voltage power line carrier communicator to realize communication.

[0025] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. An intelligent monitoring system for a power distribution system at a construction site, comprising a monitoring computer, characterized in that: It also includes a first low-voltage power line carrier communicator, a second low-voltage power line carrier communicator and an automatic controller, wherein the first low-voltage power line carrier communicator and the automatic controller are respectively connected to the construction site power distribution system with strong electricity, the first low-voltage power line carrier communicator is connected to the automatic controller with weak electricity, the automatic controller is connected to the construction site power distribution system with weak electricity, and the monitoring computer and the second low-voltage power line carrier communicator are respectively connected to the construction site power distribution system with strong electricity; The monitoring computer is weakly connected to the second low-voltage power line carrier communicator. The monitoring computer and multiple automatic controllers together constitute a field bus system through the construction site power distribution system. The automatic controller and the monitoring computer are respectively connected to the bus through the first low-voltage power line carrier communicator and the second low-voltage power line carrier communicator to achieve communication.

2. The intelligent monitoring system for a construction site power distribution system according to claim 1, characterized in that: The automatic controller is a direct digital controller.

3. The intelligent monitoring system for a construction site power distribution system according to claim 1, characterized in that: The automatic controller is a programmable logic controller.

4. The intelligent monitoring system for a construction site power distribution system according to claim 1, characterized in that: The automatic controller is an embedded single chip microcomputer system.

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