A monitoring system and monitoring method for an emergency diesel generator

Abstract

The application provides a monitoring system and a monitoring method for an emergency diesel generator, the monitoring system comprising at least one receiving end, the receiving end being in wired communication connection with a control cabinet of a corresponding emergency diesel generator, and being used for acquiring working parameters of the emergency diesel generator; and an operating end, the operating end being in wireless communication connection with the receiving end, and being used for receiving the working parameters of the emergency diesel generator; wherein the operating end is further used for receiving working parameters of the emergency diesel generator after adjustment by an operator, and generating corresponding control instructions, and the receiving end controls the corresponding control cabinet to adjust the working parameters of the emergency diesel generator according to the control instructions. Through the monitoring system and the monitoring method for the emergency diesel generator, the timeliness of unit parameter acquisition and control intervention can be improved, and efficient operation and safe monitoring of the emergency power supply system can be ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of nuclear power, in particular to a monitoring system and a monitoring method of an emergency diesel generator. BACKGROUND

[0002] In a nuclear power plant, an emergency diesel generator is one of the important equipment to ensure the safe operation of the power plant. When an emergency condition occurs in the nuclear power plant, the emergency diesel generator supplies power to the emergency power supply bus and the downstream emergency power supply load through the closed emergency diesel generator outlet breaker, and at this time, the normal incoming line switch of the emergency power supply bus is in an open state. After the emergency condition is removed, the emergency diesel generator needs to be synchronized and connected to the grid through the normal incoming line switch of the emergency power supply bus under the condition of running with the emergency power supply bus, that is, backup grid connection. The backup grid connection operation usually requires human intervention and enhanced monitoring. According to the existing division of labor arrangement of the nuclear power plant, the operation is performed by engineering and technical personnel during the engineering construction stage, and by operation personnel of the nuclear power plant operation unit after the commercial operation of the unit.

[0003] At present, the parameter monitoring function, synchronization and grid connection function, and control function of the emergency diesel generator are realized by relying on the field control cabinet and the man-machine interface. During the normal standby period of the emergency diesel generator, the operation period of the unit, and the remote grid connection and switching back to the normal power supply after the emergency start, if the technical personnel want to obtain the key parameters of the unit or intervene in the operation of the unit, they must personally go to the site of the emergency diesel generator. This way of relying on on-site operation leads to insufficient timeliness of obtaining and controlling the unit parameters by the technical personnel under the above-mentioned conditions, which affects the efficient operation and safe monitoring of the emergency power supply system. Therefore, there is room for improvement. SUMMARY

[0004] The purpose of the present application is to provide a monitoring system and a monitoring method of an emergency diesel generator, which can improve the timeliness of obtaining and controlling the unit parameters and ensure the efficient operation and safe monitoring of the emergency power supply system.

[0005] To solve the above technical problems, the present application is realized by the following technical scheme:

[0006] The present application provides a monitoring system of an emergency diesel generator, comprising:

[0007] At least one receiving end, which is in wired communication connection with the control cabinet of the corresponding emergency diesel generator, is used to obtain the working parameters of the emergency diesel generator; and

[0008] An operation end, which is in wireless communication connection with the receiving end, is used to receive the working parameters of the emergency diesel generator; the operation end can be movably arranged at different positions and corresponds to different emergency diesel generators;

[0009] The operation end is further configured to receive an adjusted working parameter of the emergency diesel generator by an operator, and generate a corresponding control instruction, and the receiving end controls the corresponding control cabinet to adjust the working parameter of the emergency diesel generator according to the control instruction.

[0010] In an embodiment of the present application, the operation end comprises:

[0011] The first communication module is wirelessly connected with the receiving end, and is configured to receive the working parameter of the emergency diesel generator sent by the receiving end, and send a control instruction to the receiving end;

[0012] The first control module is configured to receive an adjusted working parameter of the emergency diesel generator by an operator, and generate a corresponding control instruction according to the adjusted working parameter;

[0013] The first display module is configured to display the working parameter of the emergency diesel generator; and

[0014] The first power supply module is configured to supply power for the first control module, the first communication module and the first display module.

[0015] In an embodiment of the present application, the operation end further comprises an audible and visual alarm; and the working parameter comprises a rotating speed.

[0016] The first control module is configured to monitor the rotating speed in real time, and send an alarm instruction to the audible and visual alarm when the rotating speed reaches a preset value;

[0017] The audible and visual alarm is configured to perform audible and visual alarm according to the alarm instruction.

[0018] In an embodiment of the present application, the operation end further comprises a communication indicator light.

[0019] The first control module is configured to monitor a communication line between the first communication module and the receiving end in real time.

[0020] When the communication line is not smooth, an abnormal instruction is sent to the communication indicator light;

[0021] When the communication line is smooth, a normal instruction is sent to the communication indicator light;

[0022] The communication indicator light is configured to enter an abnormal state according to the abnormal instruction, and enter a normal state according to the normal instruction.

[0023] In an embodiment of the present application, the first control module comprises:

[0024] The operation unit has a plurality of gears, and different gears are configured to select a corresponding emergency diesel generator.

[0025] an adjusting unit configured to adjust an operating parameter of the emergency diesel generator; and

[0026] a control unit configured to generate a corresponding control instruction according to the selected emergency diesel generator and the adjusted operating parameter.

[0027] In an embodiment of the present application, the receiving end comprises:

[0028] a second communication module wirelessly connected with the first communication module, configured to receive the control instruction sent by the first communication module and send the operating parameter of the emergency diesel generator to the first communication module;

[0029] a second control module configured to receive the current signal sent by the control cabinet and perform range conversion processing on the current signal of the control cabinet to generate a corresponding operating parameter;

[0030] a measurement bus electrically connected between the control cabinet and the second control module, configured to transmit the current signal sent by the control cabinet;

[0031] a control bus electrically connected between the second control module and the control cabinet, configured to transmit the control instruction; and

[0032] a second power supply module configured to supply power to the second communication module and the second control module.

[0033] In an embodiment of the present application, the receiving end further comprises at least one signal isolator electrically connected between the measurement bus and the control cabinet, and the signal isolator is configured to isolate the current signal sent by the control cabinet.

[0034] In an embodiment of the present application, the first communication module and the second communication module are one or more of 4G, 5G, Wifi, Lora, Zigbee and Bluetooth.

[0035] In an embodiment of the present application, the receiving end further comprises an activation state indicator.

[0036] The second control module is configured to monitor the control instruction and send an activation instruction to the activation state indicator after receiving the control instruction.

[0037] The activation state indicator is configured to enter a working state according to the activation instruction.

[0038] The present application further provides a monitoring method of an emergency diesel generator, comprising:

[0039] The working parameters of the corresponding emergency diesel generator are acquired by the receiving end;

[0040] The working parameters of the emergency diesel generator are received by the operating end;

[0041] The working parameters of the emergency diesel generator adjusted by the operator are received by the operating end, and control instructions are generated;

[0042] The working state of the emergency diesel generator is adjusted by the corresponding control cabinet under the control of the receiving end.

[0043] As described above, the present application provides a monitoring system and a monitoring method for an emergency diesel generator. The portability and real-time monitoring function of the operating end reduce the dependence on the site, improve the flexibility and response speed of the system. By acquiring key parameters in a timely manner and intervening in control, the stable operation of the emergency diesel generator under different working conditions is ensured, and the failure rate is reduced. Through real-time monitoring and timely intervention of the operating end, problems can be found and handled at the first time, improving the overall safety of the system. The real-time parameter display function of the operating end makes maintenance and management more efficient, reducing maintenance cost and risk. Technical personnel do not need to frequently go to the site, improving the convenience and comfort of work, and improving user experience.

[0044] Of course, implementing any product of the present application does not necessarily require all the advantages described above to be achieved at the same time. BRIEF DESCRIPTION OF DRAWINGS

[0045] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed for the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0046] Figure 1 a schematic diagram of the monitoring system of the emergency diesel generator in an embodiment of the present application;

[0047] Figure 2 a schematic diagram of the operating end in an embodiment of the present application;

[0048] Figure 3 a schematic diagram of the receiving end in an embodiment of the present application;

[0049] Figure 4 a flowchart of the monitoring method of the emergency diesel generator in an embodiment of the present application.

[0050] In the figure: 100, operation end; 110, first control module; 120, first communication module; 130, first display module; 140, first power supply module; 150, sound and light alarm; 160, communication indicator light;

[0051] 200, receiving end; 210, second control module; 220, second communication module; 230, measurement bus; 240, control bus; 250, second power supply module; 260, signal isolator; 270, activation status indicator light;

[0052] 300, control cabinet. DETAILED DESCRIPTION

[0053] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0054] Please refer to Figure 1 The present application discloses a kind of monitoring systems of emergency diesel generator, it can monitor emergency diesel generator, to control emergency diesel generator to work. Monitoring system can include operation end 100 and receiving end 200.

[0055] In an embodiment, operation end 100 is movable, can be used in different places, rather than fixed in a particular position. According to the demand, operation end 100 can be arranged in the office of technical personnel or duty dormitory etc.. Operation end 100 can be used by technical personnel or on-duty personnel, can be placed flexibly in the area of their daily work, facilitate monitoring and operation emergency diesel generator.

[0056] In an embodiment, the number of receiving end 200 can be multiple, for example, 3. Each receiving end 200 is arranged in a particular plant, respectively plant A, plant B and plant C, and each plant has a receiving end 200, to ensure that emergency diesel generator in each plant can be effectively monitored and controlled.

[0057] In one embodiment, the receiving end 200 is connected with the control cabinet 300 of the emergency diesel generator by wired communication connection, and data is transmitted between the two through a physical cable. The wired communication connection enables the receiving end 200 to obtain the working parameters of the emergency diesel generator. The working parameters can include active power, reactive power, generator voltage, generator current, power factor, rotating speed, diesel lubricating oil pressure, etc. In addition, the receiving end 200 can also control the working state of the emergency diesel generator, such as starting, stopping or adjusting the output power, according to the control instructions sent by the operating end 100 through electrical connection.

[0058] Please refer to Figure 2 In one embodiment, the operating end 100 can include a first control module 110, a first communication module 120, a first display module 130, a first power supply module 140, an audible and visual alarm 150, and a communication indicator light 160.

[0059] In one embodiment, the first control module 110 can include a main controller and its attached input / output (I / O) devices. The main controller is responsible for the processing and operation of control logic and communicates with external devices through I / O devices. The model of the main controller can be unrestricted, for example, it can be USR-M300. The model of the input / output (I / O) device can be unrestricted, for example, it can be 8DI extension machine (USR-IO8000) or 4DI / 4DO extension machine (USR-IO4040), etc. The first control module 110 can be used to receive the working parameters of the emergency diesel generator adjusted by the operator, and generate corresponding control instructions according to the adjusted working parameters.

[0060] In one embodiment, the first control module 110 also has an operation panel and a control unit. The operation panel integrates a plurality of control knobs and buttons to enable the operator to generate corresponding control instructions according to actual needs. The plurality of control knobs and buttons can be classified into operation units and adjustment units according to types. The operation units can have multiple gears, and different gears correspond to different emergency diesel generators. The adjustment units can be used to adjust the working parameters of the emergency diesel generator. The control unit can generate corresponding control instructions according to the selected emergency diesel generator and the adjusted working parameters. For example, the operation panel can integrate speed regulating knobs (speed up, slow down), voltage regulating knobs (voltage up, voltage down), unit start-stop knobs (start, stop), emergency stop buttons, generator outlet circuit breaker opening buttons, unit selection knobs (A unit, B unit, C unit, 0 position), etc. The operation unit can be the unit selection knob. The adjustment unit can be other knobs except the unit selection knob.

[0061] In an embodiment, the speed regulating knob can be a three-position self-resetting knob. The speed regulating knob can have three positions, such as speed up, speed down, and 0 position. The speed regulating knob can be connected to the main controller and its affiliated I / O devices by hardwiring. Among them, the speed up refers to when the knob is rotated from the "0" position to the "speed up" position, the main controller receives the speed up signal and generates a speed up control instruction, which is transmitted to the first communication module 120 through the communication bus, and finally controls the diesel engine speed of the emergency diesel generator to increase. The speed down refers to when the knob is rotated from the "0" position to the "speed down" position, the main controller receives the speed down signal and generates a speed down control instruction, which is transmitted to the first communication module 120 through the communication bus, and finally controls the diesel engine speed of the emergency diesel generator to decrease. The 0 position refers to that the knob does not trigger any signal when it is in the "0" position. For example, when the emergency diesel generator is synchronized and grid-connected, the speed regulating knob can realize the function of increasing and decreasing the active power of the unit.

[0062] In an embodiment, the voltage regulating knob can be a three-position self-resetting knob. The voltage regulating knob can have three positions, such as voltage up, voltage down, and 0 position. The voltage regulating knob can be connected to the main controller and its affiliated I / O devices by hardwiring. Among them, the voltage up refers to when the knob is rotated from the "0" position to the "voltage up" position, the main controller receives the voltage up signal and generates a voltage up control instruction, which is transmitted to the first communication module 120 through the communication bus, and finally controls the output voltage of the emergency diesel generator to increase. The voltage down refers to when the knob is rotated from the "0" position to the "voltage down" position, the main controller receives the voltage down signal and generates a voltage down control instruction, which is transmitted to the first communication module 120 through the communication bus, and finally controls the output voltage of the emergency diesel generator to decrease. The 0 position refers to that the knob does not trigger any signal when it is in the "0" position. For example, when the emergency diesel generator is synchronized and grid-connected, the voltage regulating knob can realize the function of increasing and decreasing the reactive power of the unit.

[0063] In an embodiment, the unit start-stop knob can be a three-position self-resetting knob. The unit start-stop knob can have three positions, such as start, stop, and 0 position. The unit start-stop knob can be connected to the main controller and its affiliated I / O devices by hardwiring. Among them, the start refers to when the knob is rotated from the "0" position to the "start" position, the main controller receives the start signal and generates a start control instruction, which is transmitted to the first communication module 120 through the communication bus, and finally controls the corresponding emergency diesel generator to start. The stop refers to when the knob is rotated from the "0" position to the "stop" position, the main controller receives the stop signal and generates a stop control instruction, which is transmitted to the first communication module 120 through the communication bus, and finally controls the corresponding emergency diesel generator to stop operating. The 0 position refers to that the knob does not trigger any signal when it is in the "0" position. For example, the unit start-stop knob is in the "0" position by default, indicating the original position, and does not perform any control operation.

[0064] In an embodiment, the emergency stop button can be a mushroom head self-locking button. The emergency stop button can be connected to the main controller and its affiliated I / O devices by hardwiring. Wherein, the emergency stop refers to when the emergency stop button is pressed, the main controller receives the emergency stop signal and generates the emergency stop control instruction, which is transmitted to the first communication module 120 through the communication bus, and finally realizes the emergency stop of the emergency diesel generator. For example, in the application scenario when the emergency diesel generator appears abnormal situation or needs to be stopped immediately, the operator can quickly realize the unit shutdown through the emergency stop button.

[0065] In an embodiment, the generator outlet circuit breaker opening button can be a flat head self-resetting button. The generator outlet circuit breaker opening button can be connected to the main controller and its affiliated I / O devices by hardwiring. Wherein, the opening refers to when the generator outlet circuit breaker opening button is pressed, the main controller receives the opening pulse signal and generates the opening control instruction, which is transmitted to the first communication module 120 through the communication bus, and finally controls the opening of the emergency diesel generator outlet circuit breaker, realizes the separation of the emergency diesel generator and the emergency power supply bus, and changes the generator to the no-load operation mode. For example, when the operator needs to separate the emergency diesel generator from the power supply system, he can complete this operation through the generator outlet circuit breaker opening button.

[0066] In an embodiment, the unit selection knob can be a self-holding knob. The unit selection knob has multiple gears, and different gears correspond to different emergency diesel generators; after the unit selection knob is rotated to a certain gear, the first control module generates corresponding control instructions according to the operator's other operations, and adjusts the working state of the corresponding emergency diesel generator according to the control instructions. For example, the unit selection knob can be a four-gear self-holding knob. The four gears respectively represent A unit, B unit, C unit and 0 position. The unit selection knob can be connected to the main controller and its affiliated I / O devices by hardwiring. Wherein, the 0 position refers to the default position, indicating that no unit is selected. The A unit refers to when the knob is rotated to the A unit, the main controller receives the signal of selecting the A unit and generates the corresponding control instruction, which is transmitted to the first communication module 120 through the communication bus, and finally controls the emergency diesel generator of the A unit. The B unit refers to when the knob is rotated to the B unit, the main controller receives the signal of selecting the B unit and generates the corresponding control instruction, which is transmitted to the first communication module 120 through the communication bus, and finally controls the emergency diesel generator of the B unit. The C unit refers to when the knob is rotated to the C unit, the main controller receives the signal of selecting the C unit and generates the corresponding control instruction, which is transmitted to the first communication module 120 through the communication bus, and finally controls the emergency diesel generator of the C unit. For example, when the operator needs to remotely intervene and control different units, he can select a specific unit through the unit selection knob, and then further operate through other control knobs and buttons.

[0067] In one embodiment, when the operator operates the control knobs and buttons on the operation panel, the main controller and its attached I / O devices will collect the corresponding on-off signals and perform logical processing to generate corresponding control instructions. The generated control instructions are transmitted to the first communication module 120 through the communication bus, and the first communication module 120 transmits these control signals to the corresponding receiving end 200 through wireless communication. The receiving end 200 adjusts the working state of the emergency diesel generator according to the received control instructions through the wired communication connection with the emergency diesel generator control cabinet.

[0068] In one embodiment, the first communication module 120 is connected to the first control module 110 through electrical connection. The first communication module 120 can be used to receive the working parameters of the emergency diesel generator sent by the receiving end 200, and send control instructions to the receiving end 200.

[0069] In one embodiment, the first communication module 120 can support multiple communication modes, including but not limited to 4G, 5G, Wi-Fi, LoRa, Zigbee, Bluetooth. The specific selection of communication mode can be configured according to the requirements of the actual application scene.

[0070] In one embodiment, the first communication module 120 provides a SIM card socket, which can be inserted with a SIM card provided by the operator to realize 4G network connection function. Through the 4G network, the first communication module 120 can interact information and transmit control signals with the receiving end 200. The first communication module 120 receives control instructions from the first control module 110, which are generated by the operator through the control knobs and buttons on the operation panel. The first communication module 120 sends the control instructions to the receiving end 200 through the 4G network. After receiving the control instructions, the receiving end 200 adjusts the working state of the generator through the wired connection with the emergency diesel generator control cabinet 300.

[0071] In one embodiment, the first communication module 120 can receive the operating parameters of the emergency diesel generator sent by the receiving end 200 through the 4G network. The first communication module 120 transmits the received operating parameters to the first control module 110 through electrical connection, so that the operator can view these parameters, make further analysis and operation. The operator can generate control instructions through the operation panel: the operator performs knob and button operation on the operation panel of the first control module 110 to generate control instructions. For example, the operator rotates the speed regulating knob from the "0" position to the "speed up" position, and the first control module 110 collects the speed up signal and generates a speed up control instruction. The first control module 110 sends the control instruction to the first communication module 120. The first communication module 120 sends the speed up control instruction to the corresponding receiving end 200 through the 4G network. After receiving the speed up control instruction, the receiving end 200 controls the diesel engine speed to increase through the wired connection with the emergency diesel generator control cabinet 300.

[0072] In one embodiment, the first display module 130 can be electrically connected to the first control module 110 for displaying the operating parameters of the emergency diesel generator. For example, the first display module 130 can be connected to the main controller and its attached input / output (I / O) devices through a communication bus. The type of the first display module 130 can not be limited, for example, it can be Kunlun Tong State MCGS, model TPC7032Kt.

[0073] In one embodiment, the first power supply module 140 is electrically connected to the first control module 110, the first communication module 120 and the first display module 130 for power supply. Specifically, the first power supply module 140 can convert 220V AC power into 24V DC power and provide 24V DC operating power for the first control module 110, the first communication module 120 and the first display module 130. The type of the first power supply module 140 can not be limited, for example, it can be a Schneider flat panel switching power supply, model ABL2REM24085K, power 200W.

[0074] In one embodiment, the audible and visual alarm 150 can be connected to the first control module 110 through an electrical connection for audible and visual alarm when the speed of the emergency diesel generator reaches a preset value. The first control module 110 can monitor the speed of the emergency diesel generator in real time. When the speed exceeds the preset value (for example, 180 rpm), the first control module 110 determines whether the situation requires triggering an alarm. Once the determination result is that the alarm is required, the first control module 110 supplies power to the audible and visual alarm 150 through its output port, so that the audible and visual alarm 150 starts to work and emits an audible and visual signal. For example, when the speed exceeds the preset value (for example, 180 rpm), the audible and visual alarm 150 can emit an alarm instruction to the audible and visual alarm 150. The audible and visual alarm 150 can be used to emit an audible and visual alarm according to the alarm instruction. The type of the audible and visual alarm 150 can not be limited, for example, it can be Schneider, model XB2BSB4L.

[0075] In one embodiment, it is assumed that the emergency diesel generator has three units, which are unit A, unit B and unit C. The first control module 110 collects the speed data of each unit in real time through sensors. For example, the current speed of unit A is 175 rpm, the speed of unit B is 182 rpm, and the speed of unit C is 178 rpm. When the first control module 110 detects that the speed of unit B reaches 182 rpm, which exceeds the preset 180 rpm, the first control module 110 immediately supplies power to the audible and visual alarm 150 through its output port. After receiving the power supply signal, the audible and visual alarm 150 starts to emit an alarm sound and flashing light to prompt the operator that the speed of unit B has exceeded the safe range and needs to be monitored and intervened in time. After hearing the alarm sound and seeing the flashing light, the operator will immediately go to the control area of unit B to check and handle possible problems to ensure the safe operation of the equipment.

[0076] In one embodiment, the first control module 110 can be used to monitor the communication line between the first communication module 120 and the receiving end 200 in real time. When the communication line is not smooth, an abnormal instruction can be sent to the communication indicator light 160; when the communication line is smooth, a normal instruction can be sent to the communication indicator light 160. The communication indicator light 160 can be used to enter an abnormal state according to the abnormal instruction, and enter a normal state according to the normal instruction.

[0077] In an embodiment, the communication indicator 160 is connected to the first control module 110 through an electrical connection, for real-time display of the communication state between the first communication module 120 and the receiving end 200. When the communication line is not smooth, the communication indicator 160 enters an abnormal state; when the communication line is smooth, the communication indicator 160 enters a normal state. Specifically, the first control module 110 monitors the communication line between the first communication module 120 and the receiving end 200 in real time. The first control module 110 will determine whether the communication line is smooth. According to the determination result, the first control module 110 controls the state of the communication indicator 160. When the communication line is not smooth, the communication indicator 160 enters an abnormal state (such as flashing or extinguishing); when the communication line is smooth, the communication indicator 160 enters a normal state (such as always on).

[0078] Please refer to Figure 3 In an embodiment, the receiving end 200 can include a second control module 210, a second communication module 220, a measurement bus 230, a control bus 240, a second power supply module 250, a signal isolator 260, and an activation state indicator 270.

[0079] In an embodiment, the second communication module 220 can be wirelessly connected to the first communication module 120. The second communication module 220 can be one or several of 4G, 5G, Wifi, Lora, Zigbee, Bluetooth, and Bluetooth module. The structure of the second communication module 220 can be the same as that of the first communication module 120. The second communication module 220 can be used to receive control instructions from the first communication module 120 and send working parameters of the emergency diesel generator to the first communication module 120.

[0080] In an embodiment, the type of the second control module 210 can be the same as that of the first control module 110. The second control module 210 can receive control instructions issued by the operating end 100 through the second communication module 220. After processing by the second control module 210, the receiving end 200 transmits these control instructions to the control cabinet of the emergency diesel generator through the control bus, and completes the corresponding control function through logical linkage. The control instructions can include speed regulation signals (speed up, slow down), voltage regulation signals (voltage up, voltage down), unit start-stop signals (start, stop), emergency stop signals, generator outlet circuit breaker tripping signals, etc.

[0081] In an embodiment, the measurement bus 230 can be electrically connected between the second control module 210 and the control cabinet 300, and the second control module 210 can obtain the working parameters of the emergency diesel generator through the measurement bus 230.

[0082] In one embodiment, the control bus 240 can be electrically connected between the second control module 210 and the control cabinet 300, and the control cabinet 300 can receive control instructions through the control bus 240. An isolator can also be provided on the control bus 240 to prevent interference with the control cabinet 300. The number of isolators can be at least one, and the specific number can be limited according to the number of types of control instructions. The isolator can be implemented by an optical coupling isolation relay, and the model can be MRI-24D48.

[0083] In one embodiment, the number of signal isolators 260 can be at least one. The signal isolator 260 can be electrically connected between the measurement bus 230 and the control cabinet 300. The signal isolator 260 is used to electrically isolate the current signal sent by the control cabinet 300. The second control module 210 generates corresponding working parameters according to the isolated current signal. The type of signal isolator 260 can not be limited, for example, it can be a 4-20mA current signal isolator, and the model can be Hongrun signal isolator M21.

[0084] In one embodiment, the control cabinet 300 can collect various working parameters of the emergency diesel generator and convert them into 4-20mA current signals. The current signals are transmitted to the signal isolator 260 through the measurement bus 230, and the signal isolator 260 electrically isolates these current signals to ensure that it does not interfere with the control cabinet 300. The isolated 4-20mA current signal can be transmitted to the auxiliary input port of the second control module 210 through the signal isolator 260. After the second control module 210 collects these 4-20mA current signals, it performs range conversion processing of each parameter to generate corresponding working parameters.

[0085] In one embodiment, it is assumed that the control cabinet 300 collects and sends the following parameter current signals: active power (4-20mA), reactive power (4-20mA), generator voltage (4-20mA), generator current (4-20mA), power factor (4-20mA), speed (4-20mA), and diesel engine lubricating oil pressure (4-20mA). The signal isolator 260 electrically isolates the above-mentioned current signals. Each signal isolator 260 can electrically isolate one type of current signal, so the signal isolator 260 can include an active power isolator, a reactive power isolator, a generator voltage isolator, a generator current isolator, a power factor isolator, a speed isolator, and a diesel engine lubricating oil pressure signal isolator.

[0086] In one embodiment, after the second control module 210 collects the 4-20 mA current signals, the range conversion of various parameters is performed to generate corresponding working parameters. For example, for the active power isolator, the 4-20 mA current signal can be converted to 0-9000 kW. For the reactive power isolator, the 4-20 mA current signal can be converted to -8000-8000 kVar. For the generator voltage isolator, the 4-20 mA current signal can be converted to 0-12000 V. For the generator current isolator, the 4-20 mA current signal can be converted to 0-900 A. For the power factor isolator, the 4-20 mA current signal can be converted to -1-1. For the speed isolator, the 4-20 mA current signal can be converted to 0-800 rpm. For the diesel engine lubricating oil pressure signal isolator, the 4-20 mA current signal can be converted to 0-10 bar.

[0087] In one embodiment, the second control module 210 can be used to monitor the control instructions and issue an activation instruction to the activation status indicator light 270 after receiving the control instructions. The activation status indicator light 270 can be used to enter a working state according to the activation instruction, which can be represented as the activation status indicator light 270 being lit after receiving the activation instruction for prompting. When the operation end 100 selects a certain unit, the receiving end 200 corresponding to the unit is activated, and at the same time the second control module 210 can light the activation status indicator light 270.

[0088] In one embodiment, the second power supply module 250 can be electrically connected to the second control module 210, the activation status indicator light, and the activation status indicator light 270 for power supply. The second power supply module 250 can convert 220V AC power into 24V DC power. The type of the second power supply module 250 can not be limited, for example, it can be a Schneider flat panel switch power supply with model ABL2REM24085K and power 200W.

[0089] As can be seen, in the above scheme, the portability and real-time monitoring function of the operation end reduce the dependence on the site, improve the flexibility and response speed of the system. By timely obtaining key parameters and intervening control, the stable operation of the emergency diesel generator under different working conditions is ensured, and the failure rate is reduced. Through real-time monitoring and timely intervention of the operation end, problems can be found and handled in the first time, improving the overall safety of the system. The real-time parameter display function of the operation end makes the maintenance and management more efficient, reducing the maintenance cost and risk. Technical personnel do not need to frequently go to the site, improving the convenience and comfort of work, and improving the user experience.

[0090] Please refer to Figure 4The application further provides a monitoring method of the emergency diesel generator. The monitoring method can be applied to the monitoring system, and the monitoring method can include the following steps:

[0091] In step S10, the working parameters of the corresponding emergency diesel generator are acquired by the receiving end.

[0092] In step S20, the working parameters of the emergency diesel generator are received by the operating end.

[0093] In step S30, the working parameters of the emergency diesel generator adjusted by the operator are received by the operating end, and the control instruction is generated.

[0094] In step S40, the working state of the emergency diesel generator is adjusted by the corresponding control cabinet under the control of the receiving end.

[0095] The above disclosed embodiments of the application are only used to help explain the application. The embodiments do not describe all the details, nor limit the application to the specific embodiments described. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the application, so that those skilled in the art can well understand and utilize the application. The application is limited by the claims and their entire scope and equivalents.

Claims

1. A monitoring system for an emergency diesel generator, characterized in that The application relates to an emergency diesel generator parameter adjustment system. The system comprises: at least one receiving end in wired communication connection with a control cabinet of a corresponding emergency diesel generator, used for acquiring working parameters of the emergency diesel generator; and an operating end in wireless communication connection with the receiving end, used for receiving the working parameters of the emergency diesel generator; the operating end is movably arranged at different positions and corresponds to different emergency diesel generators; 2. The monitoring system of an emergency diesel generator according to claim 1, characterized in that, wherein the operating end is further used for receiving adjusted working parameters of the emergency diesel generator by an operator and generating corresponding control instructions; the receiving end controls the corresponding control cabinet to adjust the working parameters of the emergency diesel generator according to the control instructions. The operating end comprises: a first communication module in wireless communication connection with the receiving end, used for receiving the working parameters of the emergency diesel generator sent by the receiving end and sending control instructions to the receiving end; a first control module used for receiving the adjusted working parameters of the emergency diesel generator by the operator and generating corresponding control instructions according to the adjusted working parameters; a first display module used for displaying the working parameters of the emergency diesel generator; and 3. The monitoring system of an emergency diesel generator according to claim 2, characterized in that, a first power supply module used for supplying power to the first control module, the first communication module and the first display module. The operating end further comprises an audible and light alarm; the working parameters comprise a rotating speed; the first control module is used for monitoring the rotating speed in real time and sending an alarm instruction to the audible and light alarm when the rotating speed reaches a preset value; 4. The emergency diesel generator monitoring system of claim 2, wherein, the audible and light alarm is used for performing audible and light alarm according to the alarm instruction. The operating end further comprises a communication indicating lamp; the first control module is used for monitoring a communication line between the first communication module and the receiving end in real time: when the communication line is not smooth, sending an abnormal instruction to the communication indicating lamp; when the communication line is smooth, sending a normal instruction to the communication indicating lamp; 5. The emergency diesel generator monitoring system of claim 2, wherein, the communication indicating lamp is used for entering an abnormal state according to the abnormal instruction and entering a normal state according to the normal instruction. The first control module comprises: an operating unit with multiple gears, different gears being used for selecting corresponding emergency diesel generators; and an adjusting unit used for adjusting the working parameters of the emergency diesel generators; and 6. The emergency diesel generator monitoring system of claim 2, wherein, a control unit used for generating corresponding control instructions according to the selected emergency diesel generators and the adjusted working parameters. The receiving end comprises: a second communication module in wireless communication connection with the first communication module, used for receiving the control instructions sent by the first communication module and sending the working parameters of the emergency diesel generator to the first communication module; a second control module used for receiving a current signal sent by the control cabinet and performing range conversion processing on the current signal of the control cabinet to generate corresponding working parameters; a measurement bus electrically connected between the control cabinet and the second control module, used for transmitting the current signal sent by the control cabinet; a control bus electrically connected between the second control module and the control cabinet, used for transmitting the control instructions; and a second power supply module used for supplying power to the second communication module and the second control module.

7. The monitoring system of an emergency diesel generator according to claim 6, characterized in that, The receiving end further comprises at least one signal isolator electrically connected between the measurement bus and the control cabinet, and the signal isolator is used for isolating the current signal sent by the control cabinet.

8. The emergency diesel generator monitoring system of claim 6, wherein, The first communication module and the second communication module are one or more of 4G, 5G, Wifi, Lora, Zigbee and Bluetooth.

9. The emergency diesel generator monitoring system of claim 6, wherein, The receiving end further comprises an activation state indicator lamp. The second control module is used for monitoring a control instruction, and after receiving the control instruction, the second control module sends an activation instruction to the activation state indicator lamp. The activation state indicator lamp is used for entering a working state according to the activation instruction.

10. A method of monitoring an emergency diesel generator, characterized by, The monitoring method is applied to the monitoring system of the emergency diesel generator as claimed in any one of claims 1-9, and the monitoring method comprises: obtaining working parameters of the corresponding emergency diesel generator through a receiving end; receiving the working parameters of the emergency diesel generator through an operation end; receiving the working parameters of the emergency diesel generator adjusted by an operator through the operation end, and generating a control instruction; controlling a corresponding control cabinet to adjust the working state of the emergency diesel generator through the receiving end.

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