Street lamp single lamp control device capable of judging various faults

Abstract

The invention relates to the technical field of street lamp illumination control, and discloses a street lamp single lamp control device capable of judging various faults, which comprises a box body, supporting pipes which are symmetrical front and back are fixed in the box body, connecting lines which are distributed in an array are mounted on one side of the box body, and a mounting plate is mounted at the bottom of the box body; the PLC control panel is arranged in the box body and is used for judging the fault of the street lamp; the butt joint assemblies are installed on the two sides of the supporting pipe and used for assisting the box body to be rapidly installed between an upper transverse rod and a lower transverse rod in the lamp pole; the butt joint assembly comprises a threaded column which is in threaded connection with the interior of the supporting pipe, and a rotary knob is fixed to the end, away from the supporting pipe, of the threaded column. By optimizing the appearance design of the controller, the controller is compactly installed in the lamp pole, the controller is stably placed, the space of a cable and a vertical wire is not occupied, normal operation of a line is ensured, meanwhile, later overhaul and maintenance are facilitated through the layout, interference to the interior of the lamp pole is reduced, and the maintenance efficiency of equipment is improved.

Description

Technical Field

[0001] The invention relates to the technical field of street lamp lighting control, and in particular to a street lamp single lamp control device capable of judging multiple faults. Background Art

[0002] With the acceleration of urbanization, street lamps play a vital role in urban lighting. The safe operation of street lamp facilities is closely related to the safety of people's lives. However, as the largest number of public facilities in the city, street lamps are prone to leakage equipment failures, especially during the flood season. The large number of lamp poles and their wide distribution restrict the efficiency and accuracy of manpower investigation. Once such a failure occurs, it is difficult to investigate and poses a threat to pedestrian safety. It not only brings inconvenience to urban management and residents' lives, but also has a huge impact on the normal operation of the entire street lamp system.

[0003] At present, the single lamp control and leakage detection equipment used in urban street lamps can realize various data collection, remote control, and leakage line alarm functions for a single street lamp, but the following problems still exist:

[0004] First, the functions of single lamp control equipment are relatively simple, and the functions that can be realized are limited to data collection, switch control and dimming control. The focus is on flexible control of lighting equipment, and there are no functions such as fault detection alarm and fault judgment;

[0005] Secondly, the leakage detection equipment can alarm the circuit that generates leakage, but it cannot be specific to the lamp pole or even the equipment location, so it is of limited help in troubleshooting the leakage point;

[0006] Finally, in order to achieve more functions, street lamps are equipped with a variety of control and detection equipment, but the limited space inside the lamp pole has become an urgent problem to be solved. It is necessary to achieve effective use of space through circuit board integration functions, optimization of device appearance and volume, etc., to improve the overall coordination and aesthetics of the street lamp system, enrich functions while avoiding space congestion caused by complex devices;

[0007] In view of the above, it is now urgent to develop a street lamp single lamp controller that can accurately detect and judge multiple faults, especially capable of judging leakage faults, which is of great significance. Summary of the invention

[0008] In view of the deficiencies in the prior art, the present invention provides a single-lamp street lamp control device that can determine multiple faults, thereby solving the problem that the device cannot effectively utilize space.

[0009] To achieve the above objectives, the present invention is implemented through the following technical solutions: a single street lamp control device capable of judging multiple faults, comprising:

[0010] A box body, inside which a front-to-back symmetrical support tube is fixed, one side of the box body is installed with connecting wires distributed in an array, and a mounting plate is installed at the bottom of the box body;

[0011] A PLC control board, which is installed inside the box and is used to determine street lamp failures;

[0012] Docking components, which are installed on both sides of the support tube, are used to assist the box body to be quickly installed between the upper and lower cross bars in the lamp pole;

[0013] The docking assembly includes a threaded column, which is threadedly connected to the inside of a support tube. A knob is fixed to one end of the threaded column away from the support tube. The side of the knob away from the threaded column is fixedly connected to docking columns 1 distributed in a circular array. A quick-release assembly is arranged inside the docking column 1, and the outer wall of the docking column 1 is slidably docked with a docking column 2.

[0014] Preferably, a limiting column is slidingly provided inside the second docking column, and a spring is sleeved on the outer wall of the limiting column. One end of the spring is fixed to the surface of the second docking column, and the other end of the spring is fixed to a connecting column. The connecting column is connected to a rotating rod via a rotating shaft, and a docking plate is fixed to one end of the rotating rod away from the rotating shaft inside the connecting column.

[0015] Preferably, the quick-release assembly includes a fixed column, which is installed inside the docking column. The outer wall of the docking column is slidably provided with a connecting block that is symmetrical up and down. The outer walls at both ends of the fixed column are sleeved with springs 2, one end of the springs 2 is fixed to the inner wall of the docking column, and the other end of the springs 2 is installed on one side of the connecting block.

[0016] Preferably, the connecting block is rotatably connected to one end of a connecting rod via a connecting shaft, and the other end of the connecting rod is rotatably connected to a slider via a connecting shaft, a docking joint is fixed to one side of the slider, and the docking joint passes through the docking column and extends to the outside.

[0017] Preferably, the data communication module includes a wireless communication unit, a protocol processing unit, a Beidou positioning unit and an information transmission unit;

[0018] The wireless communication unit uses Cat.1 wireless communication technology to communicate with the remote monitoring center through a cellular network;

[0019] The protocol processing unit is used to process the MQTT Internet of Things communication protocol to ensure the data transmission process;

[0020] The Beidou positioning unit has a built-in Beidou positioning chip for automatically locating the position of the street light controller;

[0021] The information transmission unit is used to transmit the voltage, current and power data of the street lamp controller to the remote monitoring center, and at the same time receive the switch light command and dimming command sent by the remote monitoring center.

[0022] Preferably, the data acquisition module includes a current acquisition unit, a voltage acquisition unit, a power acquisition unit, an electric quantity acquisition unit, a leakage detection unit, a tilt monitoring unit and a pole door state monitoring unit;

[0023] The current acquisition unit monitors the current of the street lamp in real time through a current sensor;

[0024] The voltage acquisition unit uses a voltage sensor to collect voltage and monitor the stability of the input voltage;

[0025] The power collection unit is used to collect active power and reactive power in real time;

[0026] The power collection unit is used to calculate and record the total lighting time and total power consumption of the street lamps, and accumulate and save them;

[0027] The leakage detection unit includes a built-in sensor and an external zero-sequence transformer; wherein the built-in sensor is used to detect the leakage of the lamp, and the external zero-sequence transformer is installed on the main cable to accurately capture the tiny leakage current by detecting the change of the main cable current;

[0028] The tilt monitoring unit has a built-in three-axis acceleration sensor chip to monitor the tilt state of the lamp pole in real time. Once it deviates from the preset angle range, an alarm is triggered immediately.

[0029] The pole door state monitoring unit monitors light changes through a photosensor to determine the open or closed state of the pole door.

[0030] Preferably, the control module includes a signal processing unit, a decision unit, a time correction unit and a control instruction generation unit;

[0031] The signal processing unit is used to receive signals from the data acquisition module and classify and process different types of voltage, current, power, and leakage signals;

[0032] The decision-making unit is used to analyze and judge the collected data according to a preset control strategy;

[0033] The time correction unit has a built-in high-precision clock chip, which is used to automatically correct the time through the network to ensure that the time is consistent with the network time.

[0034] The control instruction generating unit is used to generate corresponding light switching instructions and dimming instructions according to the analysis results.

[0035] Preferably, the execution module includes a dimming circuit unit, a switch circuit unit and a safety protection unit;

[0036] The dimming circuit unit is used to receive the dimming instruction from the control module and adjust the brightness of the LED light source through the PWM or 0-10V dimming interface;

[0037] The switch circuit unit is used to control the on and off operation of the street lamp according to the switch instruction issued by the control module, so as to realize the switch function of the street lamp;

[0038] The safety protection unit has a built-in fuse to prevent the line from being overloaded and burned.

[0039] Preferably, the leakage detection module includes a lamp pole leakage detection unit and a main cable leakage detection unit;

[0040] The lamp pole leakage detection unit monitors the leakage of lamp pole lamps through built-in sensors, and triggers an alarm when it detects that the leakage current exceeds a preset threshold;

[0041] The main cable leakage detection unit monitors the slight changes of the main cable current in real time through an external zero-sequence mutual inductor, can accurately detect the leakage of the main cable, and transmits the signal to the control module to issue an alarm instruction.

[0042] Working principle: When the equipment needs to be installed inside the lamp pole, the knob should be turned according to the position of the cross bar inside the lamp pole, so that the knob can drive the threaded column to extend along the support tube along the drive of the thread. In this way, the positions of the docking column 2, the limit column and the connecting column corresponding to the corresponding knob will be synchronously driven to move, and the horizontal direction of the docking plate should be confirmed. After confirmation, the corresponding threaded column does not need to be extended until the docking plate and the cross bar are face to face. When there is still a certain distance, the docking plate can be pushed by spring 1 together with the turning rod and the connecting column, so that the connecting column pushes the docking plate through the turning rod under the restriction of the limit column, so as to make up for the remaining distance. The corresponding docking plate can also adjust the angle that needs to be bent and adapted according to the corrosion of the cross bar, and the corresponding docking column and the position above the second position should be adjusted accordingly. When the parts need to be replaced according to specific needs, the docking column 2 can be directly pulled by manpower to separate the docking column 2 from the docking column 1. In this way, the docking joint will be squeezed by force first, and then the slider will be pushed back, thereby driving the inclination angle of the connecting rod to change. In this way, the connecting block will be pushed, and then the spring 2 will be squeezed along the fixed column, so that the docking joint can be smoothly immersed in the docking column 1, and the docking column 1 and the docking column 2 can be separated. During installation, the corresponding docking joint is also squeezed by force first. However, when the docking joint is aligned with the reserved slot in the docking column 2, the corresponding spring 2 will release the elastic potential energy generated by its own reduction, and then push the connecting block to drive the connecting rod to reverse the inclination angle, so that the slider and the docking joint can be pushed to implement the engagement of the docking joint to complete the installation.

[0043] The present invention provides a single street lamp control device capable of judging multiple faults. It has the following beneficial effects:

[0044] 1. The present invention optimizes the appearance design of the controller so that it can be compactly installed between the grounding beam inside the lamp pole and the inner side of the pole body. This design not only allows the device to be placed stably, but also avoids occupying the space of street lamp cables and vertical lines, ensuring that the normal operation of the cables will not be affected. In addition, the reasonable layout makes the device more convenient for later inspection and maintenance, reduces interference with the internal space of the lamp pole, and further improves the maintenance efficiency of the equipment.

[0045] 2. The present invention can monitor the leakage situation of each lamp pole in real time through the built-in leakage detection module. When the built-in sensor or external zero-sequence transformer in the leakage detection module detects that the leakage current exceeds the preset threshold, the control module immediately performs data analysis and quickly locks the specific lamp pole where the leakage occurs. The device can not only accurately locate the fault position by cooperating with the Beidou positioning unit, but also transmit the positioning information and fault alarm signal to the remote monitoring center through the data communication module, which greatly shortens the troubleshooting time and improves the maintenance efficiency.

[0046] 3. The present invention realizes all-round monitoring and control of street lamps by integrating multiple functional modules, such as data acquisition, leakage detection, control and execution, etc. The integrated functions save space inside the lamp pole and reduce the complexity of installation and maintenance. This integrated design not only improves the overall efficiency of the system, but also reduces costs, while reducing the space congestion problem caused by numerous devices, thereby improving the overall coordination and aesthetics of the street lamp system. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 A perspective view of the present invention;

[0048] Figure 2 An exploded view of the internal structure of the support block of the present invention;

[0049] Figure 3 This is a diagram showing the internal structure of a docking column according to the present invention;

[0050] Figure 4 It is a schematic diagram of the distribution of PLC controller modules of the present invention;

[0051] Figure 5 It is a schematic diagram of a data communication module of the present invention;

[0052] Figure 6 It is a schematic diagram of a data acquisition module of the present invention;

[0053] Figure 7 is a schematic diagram of a control module of the present invention;

[0054] Figure 8 It is a schematic diagram of an execution module of the present invention;

[0055] Fig. 9 It is a schematic diagram of the leakage detection module of the present invention;

[0056] Fig.10 It is a circuit diagram of the present invention.

[0057] Among them, 1. box body; 2. support tube; 3. connecting wire; 4. mounting plate; 5. threaded column; 6. knob; 7. docking column one; 8. docking column two; 9. limit column; 10. spring one; 11. connecting column; 12. rotating rod; 13. docking plate; 14. fixing column; 15. spring two; 16. connecting block; 17. connecting rod; 18. slider; 19. docking joint. DETAILED DESCRIPTION

[0058] The following will be combined with the drawings in the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0059] Embodiment 1:

[0060] Please see attached Figure 1 -Attached Figure 2 The embodiment of the present invention provides a single street lamp control device capable of judging multiple faults, including:

[0061] A box body 1, inside which a front-to-back symmetrical support tube 2 is fixed, one side of the box body 1 is installed with connecting wires 3 distributed in an array, and a mounting plate 4 is installed at the bottom of the box body 1;

[0062] A PLC control board, which is installed inside the box body 1 and is used to determine street lamp failure;

[0063] Docking components, which are installed on both sides of the support tube 2 and are used to assist the box body 1 to be quickly installed between the upper and lower cross bars in the lamp pole;

[0064] The docking assembly includes a threaded column 5, which is threadedly connected to the inside of the support tube 2, a knob 6 is fixed to one end of the threaded column 5 away from the support tube 2, and a docking column 1 7 distributed in a ring array is fixedly connected to the side of the knob 6 away from the threaded column 5, a quick-release assembly is arranged inside the docking column 1 7, and the outer wall of the docking column 1 7 is slidably docked with a docking column 2 8;

[0065] A limiting column 9 is slidably arranged inside the docking column 8, and a spring 10 is sleeved on the outer wall of the limiting column 9. One end of the spring 10 is fixed to the surface of the docking column 8, and the other end of the spring 10 is fixed to a connecting column 11. The connecting column 11 is connected to a rotating rod 12 through a rotating shaft, and a docking plate 13 is fixed to one end of the rotating rod 12 away from the rotating shaft inside the connecting column 11.

[0066] Specifically, when installing the equipment inside the lamp pole, the installation process of the equipment needs to fully consider the complexity of the internal structure of the lamp pole, especially in the process of docking with the cross bar inside the lamp pole, the position and angle of each component need to be accurately adjusted to ensure the stability and reliability of the equipment installation; first, by turning the knob 6, the threaded column 5 can be effectively driven to extend along the thread direction of the support tube 2. The rotation of the knob 6 is not just a simple mechanical operation, it also drives other important components connected to it, such as the docking column 8, the limit column 9 and the connecting column 11. These components are synchronously displaced under the drive of the knob 6, so that the entire system can be accurately adjusted to the desired position. The synchronous displacement design can ensure that the various components are coordinated and consistent during the installation process, thereby avoiding installation deviation and improving installation accuracy. During the adjustment process, special attention should be paid to the horizontal direction of the docking plate 13. By continuously adjusting the knob 6, the threaded column 5 is gradually extended so that the docking plate 13 is close to the cross bar in the lamp pole. However, in order to prevent excessive contact or direct collision between the docking plate 13 and the cross bar, the extension process of the threaded column 5 should be stopped when there is still a certain distance between the docking plate 13 and the cross bar. At this time, the docking plate 13 is not completely docked with the cross bar. This reserved distance in the design is to further ensure the accuracy of docking. The docking plate 13 is precisely connected to the cross bar 11, and the two parts are pushed by the spring 10 to push the docking plate 13 forward to make up for the remaining distance that the threaded column 5 has not extended to. The elastic force provided by the spring 10 not only enables the docking plate 13 to stably contact the cross bar, but also allows the docking plate 13 to be displaced and adjusted within a small range. This elastic push mechanism ensures that the docking plate 13 can adapt to different installation environments, especially when facing possible corrosion or irregularities on the surface of the cross bar, the docking plate 13 can be automatically adjusted. Angle to achieve better adaptability; when the docking plate 13 contacts the crossbar, it can automatically adjust its angle according to the actual state of the crossbar, such as the degree of corrosion or surface unevenness. This function is achieved through the linkage of the rotating rod 12 and the connecting column 11 and the precise limitation of the limit column 9. The limit column 9 ensures that the connecting column 11 moves within a reasonable range to prevent excessive displacement, and at the same time ensures that the docking plate 13 can maintain stability in the process of adapting to different surface conditions. The advantage of this design is that even if the surface condition of the crossbar inside the lamp pole is not good, the docking plate 13 can still achieve close fit through fine-tuning to ensure the firmness and safety of the installation;Through this ingenious design and precise mechanical operation, the entire device can be firmly installed inside the lamp pole. The driving of the knob 6 and the extension of the threaded column 5 cooperate with the final contact between the docking plate 13 and the crossbar, which not only makes the installation process more accurate, but also enables the device to be reliably fixed in various complex environments. This design concept not only takes into account the convenience and flexibility of installation, but also greatly improves the durability and reliability of the device in actual use. In addition, four connecting wires 3 are provided, which are respectively connected to different ports, which are the input end, the output end, the detection end and the dimming end, respectively, wherein the output end is connected to CT1, and the detection end is connected to CT2. ;

[0067] Please see attached Figure 3 The quick-release assembly includes a fixed column 14, which is installed inside the docking column 7. The outer wall of the docking column 7 is slidably provided with a connecting block 16 symmetrical up and down. The outer walls of both ends of the fixed column 14 are sleeved with springs 15. One end of the spring 15 is fixed to the inner wall of the docking column 7, and the other end of the spring 15 is installed on one side of the connecting block 16. The connecting block 16 is rotatably connected to one end of a connecting rod 17 through a connecting shaft. The other end of the connecting rod 17 is rotatably connected to a slider 18 through a connecting shaft. A docking joint 19 is fixed to one side of the slider 18. The docking joint 19 passes through the docking column 7 and extends to the outside.

[0068] Specifically, when it is necessary to disassemble and replace the components above the docking column 28, the design takes into account the convenience of operation and the stability of the structure. The docking column 28 can be directly pulled by manpower to separate the docking column 28 from the docking column 17. This operation process not only simplifies the maintenance steps, but also ensures the safety and reliability of the structure during use. When the docking column 28 is pulled, the first thing to be affected by the force is the docking joint 19. Under the action of external force, the docking joint 19 will be squeezed between the docking column 17 and the docking column 28. This squeezing force will be transmitted to the internal slider 18 through the docking joint 19, so that the slider 18 The retraction of the slider 18 is the key to the whole operation, because it directly drives the change of the inclination angle of the connecting rod 17. As the angle of the connecting rod 17 changes, the connecting block 16 will also be pushed and move along the direction of the fixed column 14. In this process, the connecting block 16 applies an extrusion force to the spring 15, so that the spring 15 is compressed, so that the docking joint 19 can be smoothly immersed in the docking column 1 7, and finally the docking column 1 7 and the docking column 2 8 are smoothly separated. The cleverness of this design is that it makes full use of the lever principle of the mechanical structure and the characteristics of elastic potential energy, so that even a simple manual operation can be smoothly implemented. The present invention discloses a complicated separation process. At the same time, during installation, the butt joint 19 will also be squeezed by force first. However, during the installation process, the butt joint 19 will gradually align with the reserved slot in the butt joint column 8. When the alignment position is reached, the spring 15 releases its own elastic potential energy, so that the compressed spring 15 quickly returns to its original state. This restoring force pushes the connecting block 16 to move in the opposite direction, thereby driving the inclination angle of the connecting rod 17 to recover. As the inclination angle of the connecting rod 17 recovers, the slider 18 also moves forward, driving the butt joint 19 to re-extend to the connection position between the butt joint column 17 and the butt joint column 28. At this time, the butt joint 19 is pushed by the slider 18. Pushing it to the predetermined position realizes the locking of the joint 19, ensuring the tight connection and firm installation of the docking column 1 7 and the docking column 2 8; this design not only improves the efficiency of equipment disassembly and installation, but also enhances the stability and safety of the connection parts. In actual operation, even in the face of more complex component replacement needs, it can be easily achieved through this ingenious structural design. Moreover, relying on the coordination between the spring 2 15 and various mechanical components, the whole process can not only ensure the smoothness of operation, but also prevent equipment damage or improper installation due to human error, further improving the maintenance convenience and operational safety of the equipment.

[0069] Please see attached Figure 4 ,The PLC controller includes a data communication module, a data acquisition module, a control module, an execution module and a leakage detection module;

[0070] The data communication module adopts Cat.1 wireless communication and MQTT IoT communication protocol to realize data transmission and command reception between the street light controller and the remote monitoring center;

[0071] The data acquisition module is used to monitor the street lamp's current, voltage, power, electricity, leakage detection, lamp pole tilt monitoring, and lamp pole door status monitoring in real time;

[0072] The control module is used to receive the signal from the data acquisition module, process the signal based on the preset control strategy, generate corresponding control instructions, and support the switch control, dimming control, and fault detection alarm functions of the street lamp;

[0073] The execution module includes a dimming circuit and a switching circuit, which is used to receive the control instructions issued by the control module and execute the switching and dimming control of the street lamp;

[0074] The leakage detection module includes a first street lamp pole lamp leakage detection terminal and a second street lamp main cable leakage detection terminal, which respectively perform leakage detection on the lamp pole lamp and the main cable through a built-in sensor and an external zero-sequence transformer, and send out an alarm signal when a leakage current exceeding a preset threshold is detected.

[0075] Specifically, the data acquisition module first monitors the current, voltage, power, electricity, leakage, lamp pole tilt and lamp pole door status of the street lamp in real time through the built-in sensors and external zero-sequence transformers. The collected data is immediately transmitted to the control module. The control module analyzes and processes the received data according to the preset control strategy and generates corresponding control instructions. When an abnormal situation such as leakage, tilt or pole door abnormality is detected, the control module can quickly issue a fault alarm signal and generate corresponding control instructions to execute operations such as turning off the power of the street lamp or dimming the light. The execution module receives the instructions from the control module and dims the light. The circuit and switch circuit perform the switching operation and brightness adjustment of the street lamp. In addition, the leakage detection module monitors the leakage of lamps and main cables to ensure that an alarm signal is issued in time when a leakage fault occurs, and the relevant data is fed back to the control module for processing. All operating data and instructions are transmitted to the remote monitoring center in real time through the data communication module using Cat.1 wireless communication and MQTT Internet of Things communication protocol to achieve remote monitoring and management. In this way, each module forms a close collaborative operation between data acquisition, signal processing, instruction execution and data transmission, ensuring the efficient operation of the system and rapid response to faults.

[0076] Please see attached Figure 5 -Attached Fig. 9 ,The data communication module includes a wireless communication unit, a protocol processing unit, a Beidou positioning unit and an information transmission unit;

[0077] The wireless communication unit uses Cat.1 wireless communication technology to communicate with the remote monitoring center through the cellular network;

[0078] The protocol processing unit is used to process the MQTT IoT communication protocol to ensure the data transmission process;

[0079] The Beidou positioning unit has a built-in Beidou positioning chip, which is used to automatically locate the position of the street light controller;

[0080] The information transmission unit is used to transmit the voltage, current and power data of the street light controller to the remote monitoring center, and at the same time receive the switch light command and dimming command sent by the remote monitoring center;

[0081] The data acquisition module includes a current acquisition unit, a voltage acquisition unit, a power acquisition unit, a power acquisition unit, a leakage detection unit, a tilt monitoring unit and a pole door state monitoring unit;

[0082] The current acquisition unit monitors the current of the street lamp in real time through the current sensor;

[0083] The voltage acquisition unit uses a voltage sensor to collect voltage and monitor the stability of the input voltage;

[0084] The power collection unit is used to collect active power and reactive power in real time;

[0085] The power collection unit is used to calculate and record the total lighting time and total power consumption of the street lamps, and store them cumulatively;

[0086] The leakage detection unit includes a built-in sensor and an external zero-sequence transformer. The built-in sensor is used to detect the leakage of the lamp, and the external zero-sequence transformer is installed on the main cable to accurately capture the tiny leakage current by detecting the change of the main cable current.

[0087] Tilt monitoring unit: Built-in three-axis acceleration sensor chip to monitor the tilt status of the lamp pole in real time. Once it deviates from the preset angle range, an alarm will be triggered immediately;

[0088] The pole door state monitoring unit monitors light changes through a photosensitive sensor to determine the open or closed state of the pole door;

[0089] The control module includes a signal processing unit, a decision unit, a time correction unit and a control instruction generation unit;

[0090] The signal processing unit is used to receive signals from the data acquisition module and classify and process different types of voltage, current, power, and leakage signals;

[0091] The decision-making unit is used to analyze and judge the collected data according to the preset control strategy;

[0092] The time correction unit has a built-in high-precision clock chip, which is used to automatically calibrate the time through the network to ensure that there is no deviation between the time and the network time;

[0093] The control instruction generating unit is used to generate corresponding light switch instructions and dimming instructions according to the analysis results;

[0094] The execution module includes a dimming circuit unit, a switch circuit unit and a safety protection unit;

[0095] The dimming circuit unit is used to receive dimming instructions from the control module and adjust the brightness of the LED light source through the PWM or 0-10V dimming interface;

[0096] The switch circuit unit is used to control the on and off operation of the street lamp according to the switch command issued by the control module, thereby realizing the switch function of the street lamp;

[0097] The safety protection unit has a built-in fuse to prevent the line from being overloaded and burned;

[0098] The leakage detection module includes a lamp pole leakage detection unit and a main cable leakage detection unit;

[0099] The lamp pole leakage detection unit monitors the leakage of lamp pole lamps through built-in sensors. When the leakage current exceeds the preset threshold, an alarm is triggered;

[0100] The main cable leakage detection unit monitors the slight changes in the main cable current in real time through an external zero-sequence transformer. It can accurately detect the leakage of the main cable and transmit the signal to the control module to issue an alarm command.

[0101] Specifically, the current acquisition unit, the voltage acquisition unit, the power acquisition unit and the power acquisition unit obtain the electrical parameters of the street lamp in real time through sensors, the leakage detection unit accurately monitors the leakage of the lamp and the main cable through built-in sensors and external zero-sequence mutual inductors, the tilt monitoring unit and the pole door state monitoring unit monitor the tilt angle of the lamp pole and the opening and closing state of the pole door respectively, and these data are immediately transmitted to the signal processing unit of the control module for classification and processing after collection; Next, the decision unit of the control module makes a judgment according to the preset control strategy based on the data provided by the signal processing unit. For example, when the leakage detection unit captures a leakage current exceeding the threshold, the decision unit analyzes the leakage position and decides whether to trigger an alarm, and generates corresponding response instructions, such as turning off the relevant street lamp or adjusting the power output, and the time correction unit ensures that all decisions and operation times are synchronized with the network time to prevent instruction execution problems caused by time errors; the generated control instruction is then transmitted to the dimming circuit unit and the switch circuit unit in the execution module. If it is a dimming instruction, the dimming circuit unit sends a PW M or 0-10V interface to adjust the brightness of the LED light; if it is a switch instruction, the switch circuit unit executes the on-off operation of the street light. At the same time, the safety protection unit in the execution module monitors the entire operation process in real time to ensure that the circuit will not burn out due to overload. Once an abnormality is found, the power supply is immediately cut off to protect the safety of the system; the data communication module plays a key connection role in the whole process. The wireless communication unit maintains communication with the remote monitoring center through Cat.1 technology, and the protocol processing unit ensures the smoothness and reliability of data transmission. When the street light fails or needs to be adjusted, the remote monitoring center can issue instructions to the control module through the data communication module for remote operation. At the same time, the Beidou positioning unit provides the precise location of the faulty street light in real time to ensure that maintenance personnel can quickly locate and deal with the problem; the various units of the whole system work closely together to form a complete closed-loop control process. The data acquisition module monitors in real time, the control module analyzes and processes and issues instructions, the execution module performs corresponding operations, and the data communication module is responsible for remote transmission and positioning, ensuring the safe, stable and efficient operation of the street light system.

[0102] Embodiment 2:

[0103] Please see attached Fig.10 ,Based on the above overall technical solution, it describes in detail how to detect leakage faults in street lamp systems by measuring the current vector sum through CT1 and CT2, and use the existing communication module to achieve rapid positioning and maintenance.

[0104] The specific implementation is as follows:

[0105] S1. Current measurement and ideal state analysis: First, use the CT1 sensor to measure the current vector sum of phase A, phase B, phase C and neutral line, denoted as I 总, and then use the CT2 sensor to measure the vertical line current of each lamp pole, that is, the current vector sum of the connected phase and the neutral line, recorded as I 立线 Finally, under ideal conditions (assuming L1 is the head light pole, L3 is the end light pole, and there is no branch road in the middle), when the entire line is fault-free, I 总 and I 立线 They should all be 0, which means that there is no leakage in the system and each lamp pole is working normally;

[0106] S2. Fault analysis and quick location: First, if a lamp on a certain lamp pole fails, the I 立线 The leakage current value will be displayed, while the I 立线 Still 0, through the data communication module, the device can transmit the specific fault location and information to the remote monitoring center, which is convenient for rapid positioning and timely repair. Secondly, suppose the cable between the L1 and L2 lamp poles is damaged. At this time, I 总-L1 (the end close to the power supply) will display the leakage current value, and I 总-L2 (the end close to the end) is 0. Through this current comparison, the damaged position of the cable can be accurately determined, so as to quickly locate the fault point. The communication module can transmit these fault information to the remote monitoring center in real time for accurate maintenance.

[0107] S3. Establishment of leakage detection system: First, the system forms a complete leakage detection mechanism by comparing and calculating the detection data of CT1 and CT2. When abnormal data is detected, the system can automatically analyze and locate the fault point, greatly improving the troubleshooting efficiency. Secondly, through the existing data communication module (using Cat.1 wireless communication technology and MQTT Internet of Things communication protocol), when a leakage fault occurs, the system can not only accurately locate the specific lamp pole or cable position where the fault occurs, but also transmit the positioning information and fault alarm signal to the remote monitoring center in real time, further shortening the troubleshooting and maintenance time.

[0108] Summary: This embodiment uses CT1 and CT2 sensors to accurately measure the current vector sum, and combines the data communication module to achieve rapid detection and positioning of various leakage faults in the street lamp system. This method improves the system's fault response speed, simplifies the fault troubleshooting process, and significantly improves the safety and maintenance efficiency of the street lamp system.

[0109] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A single street lamp control device capable of diagnosing multiple faults, characterized in that: include: A box body (1) is provided with a front-to-back symmetrical support tube (2) fixed therein, one side of the box body (1) is provided with connecting wires (3) distributed in an array, and a mounting plate (4) is provided at the bottom of the box body (1); A PLC control board, which is installed inside the box body (1) and is used to determine street lamp failure; Docking components, which are installed on both sides of the support tube (2) and are used to assist the box body (1) in being quickly installed between the upper and lower cross bars in the lamp pole; The docking assembly comprises a threaded column (5) which is threadedly connected to the inside of the support tube (2); a knob (6) is fixed to one end of the threaded column (5) away from the support tube (2); a side of the knob (6) away from the threaded column (5) is fixedly connected to docking columns (7) distributed in a ring array; a quick-release assembly is arranged inside the docking column (7); and a docking column (8) is slidably docked to the outer wall of the docking column (7).

2. A street lamp single lamp control device capable of judging multiple faults according to claim 1, characterized in that: A limiting column (9) is slidably disposed inside the second docking column (8), and a spring (10) is sleeved on the outer wall of the limiting column (9). One end of the spring (10) is fixed to the surface of the second docking column (8), and the other end of the spring (10) is fixed to a connecting column (11). The connecting column (11) is connected to a rotating rod (12) via a rotating shaft, and a docking plate (13) is fixed to one end of the rotating rod (12) away from the rotating shaft inside the connecting column (11).

3. A street lamp single lamp control device capable of judging multiple faults according to claim 1, characterized in that: The quick-release assembly comprises a fixed column (14) which is installed inside the docking column (7). The outer wall of the docking column (7) is slidably provided with a connecting block (16) which is symmetrical up and down. The outer walls at both ends of the fixed column (14) are sleeved with springs (15). One end of the springs (15) is fixed to the inner wall of the docking column (7), and the other end of the springs (15) is installed on one side of the connecting block (16).

4. A street lamp single lamp control device capable of judging multiple faults according to claim 3, characterized in that: The connecting block (16) is rotatably connected to one end of a connecting rod (17) via a connecting shaft, and the other end of the connecting rod (17) is rotatably connected to a slider (18) via a connecting shaft. A docking joint (19) is fixed to one side of the slider (18), and the docking joint (19) passes through the docking column (7) and extends to the outside.

5. A street lamp single lamp control device capable of judging multiple faults according to claim 1, characterized in that: The PLC controller includes a data communication module, a data acquisition module, a control module, an execution module and a leakage detection module; The data communication module adopts Cat.1 wireless communication mode and MQTT Internet of Things communication protocol to realize data transmission and command reception between the street light controller and the remote monitoring center; The data acquisition module is used to monitor the current, voltage, power, electricity, leakage detection, lamp pole tilt monitoring, and lamp pole door status monitoring of street lamps in real time; The control module is used to receive the signal from the data acquisition module, process the signal based on the preset control strategy, generate corresponding control instructions, and support the switch control, dimming control, and fault detection alarm functions of the street lamp; The execution module includes a dimming circuit and a switching circuit, which is used to receive the control instructions issued by the control module and execute the switching and dimming control of the street lamp; The leakage detection module includes a first street light pole lamp leakage detection end and a second street light main cable leakage detection end, which respectively performs leakage detection on the lamp pole lamp and the main cable through a built-in sensor and an external zero-sequence mutual inductor, and sends an alarm signal when a leakage current exceeding a preset threshold is detected.

6. A street lamp single lamp control device capable of judging multiple faults according to claim 5, characterized in that: The data communication module includes a wireless communication unit, a protocol processing unit, a Beidou positioning unit and an information transmission unit; The wireless communication unit uses Cat.1 wireless communication technology to communicate with the remote monitoring center through a cellular network; The protocol processing unit is used to process the MQTT Internet of Things communication protocol to ensure the data transmission process; The Beidou positioning unit has a built-in Beidou positioning chip for automatically locating the position of the street light controller; The information transmission unit is used to transmit the voltage, current and power data of the street lamp controller to the remote monitoring center, and at the same time receive the switch light command and dimming command sent by the remote monitoring center.

7. A street lamp single lamp control device capable of judging multiple faults according to claim 5, characterized in that: The data acquisition module includes a current acquisition unit, a voltage acquisition unit, a power acquisition unit, an electric quantity acquisition unit, a leakage detection unit, a tilt monitoring unit and a pole door state monitoring unit; The current acquisition unit monitors the current of the street lamp in real time through a current sensor; The voltage acquisition unit uses a voltage sensor to collect voltage and monitor the stability of the input voltage; The power collection unit is used to collect active power and reactive power in real time; The power collection unit is used to calculate and record the total lighting time and total power consumption of the street lamps, and accumulate and save them; The leakage detection unit includes a built-in sensor and an external zero-sequence transformer; wherein the built-in sensor is used to detect the leakage of the lamp, and the external zero-sequence transformer is installed on the main cable to accurately capture the tiny leakage current by detecting the change of the main cable current; The tilt monitoring unit has a built-in three-axis acceleration sensor chip to monitor the tilt state of the lamp pole in real time. Once it deviates from the preset angle range, an alarm is triggered immediately. The pole door state monitoring unit monitors light changes through a photosensor to determine the open or closed state of the pole door.

8. A street lamp single lamp control device capable of judging multiple faults according to claim 5, characterized in that: The control module includes a signal processing unit, a decision unit, a time correction unit and a control instruction generation unit; The signal processing unit is used to receive signals from the data acquisition module and classify and process different types of voltage, current, power, and leakage signals; The decision-making unit is used to analyze and judge the collected data according to a preset control strategy; The time correction unit has a built-in high-precision clock chip, which is used to automatically correct the time through the network to ensure that the time is consistent with the network time. The control instruction generating unit is used to generate corresponding light switching instructions and dimming instructions according to the analysis results.

9. A street lamp single lamp control device capable of judging multiple faults according to claim 5, characterized in that: The execution module includes a dimming circuit unit, a switch circuit unit and a safety protection unit; The dimming circuit unit is used to receive the dimming instruction from the control module and adjust the brightness of the LED light source through the PWM or 0-10V dimming interface; The switch circuit unit is used to control the on and off operation of the street lamp according to the switch instruction issued by the control module, so as to realize the switch function of the street lamp; The safety protection unit has a built-in fuse to prevent the line from being overloaded and burned.

10. A street lamp single lamp control device capable of judging multiple faults according to claim 5, characterized in that: The leakage detection module includes a lamp pole leakage detection unit and a main cable leakage detection unit; The lamp pole leakage detection unit monitors the leakage of lamp pole lamps through built-in sensors, and triggers an alarm when it detects that the leakage current exceeds a preset threshold; The main cable leakage detection unit monitors the slight changes of the main cable current in real time through an external zero-sequence mutual inductor, can accurately detect the leakage of the main cable, and transmits the signal to the control module to issue an alarm instruction.

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