Generator intelligent measurement and control device

Abstract

The invention belongs to the field of measurement and control, particularly relates to an intelligent measurement and control device for a generator, and aims to solve the problems that the monitoring of the generator is relatively high in manual dependence degree and relatively low in precision. The system comprises a flow monitoring device, a liquid level monitoring device, a positioning module, a voltage monitoring device and a PLC host. The PLC host is in communication connection with the flow monitoring device, the liquid level monitoring device, the positioning module and the voltage monitoring device and used for determining multi-dimensional measurement and control signals according to generator measurement and control parameters collected in real time, fusing the multi-dimensional measurement and control signals to obtain measurement and control fusion signals and conducting measurement and control judgment according to the measurement and control fusion signals. The generator measurement and control parameters comprise generator oil inlet flow, generator oil tank oil return flow, oil tank liquid level, generator position and generator operation state. According to the invention, multi-dimensional measurement and control signals of the generator can be automatically collected and fused, abnormal conditions can be timely found and alarmed, dependence on manual monitoring is reduced, and measurement and control are more accurate.

Description

Technical Field

[0001] This invention belongs to the field of Internet of Things (IoT) technology, and specifically relates to an intelligent measurement and control device for generators. Background Technology

[0002] Currently, in long-distance pipeline and station construction sites, power generation equipment is used frequently and operates continuously for long periods of time. The monitoring of generators relies heavily on manual labor, and the accuracy of manual uploading of records is low, making it difficult to achieve real-time on-site monitoring of generators, which seriously affects construction and production efficiency. Summary of the Invention

[0003] To address the aforementioned problems in existing technologies, namely the high degree of reliance on manual labor and low accuracy in generator monitoring, this invention provides an intelligent generator monitoring and control device. This device can automatically collect and integrate multi-dimensional generator monitoring and control signals, and perform monitoring and control judgments. When abnormal situations occur, the intelligent generator monitoring and control device can promptly detect and issue an alarm, effectively solving the problems and shortcomings of high reliance on manual labor and low accuracy in previous generator monitoring. It features comprehensive functions, accurate data, convenient operation, safety, high efficiency, and cost savings.

[0004] The intelligent generator monitoring and control device provided by this invention includes a flow monitoring device, a liquid level monitoring device, a positioning module, a voltage monitoring device, and a PLC host. The PLC host is communicatively connected to the flow monitoring device, the liquid level monitoring device, the positioning module, and the voltage monitoring device, respectively, and is used to determine multi-dimensional monitoring and control signals based on the real-time collected generator monitoring and control parameters, fuse the multi-dimensional monitoring and control signals to obtain a fused monitoring and control signal, and perform monitoring and control judgments based on the fused monitoring and control signal. The generator monitoring and control parameters include the generator inlet oil flow rate, the generator oil tank return oil flow rate, the generator oil tank level, the generator position, and the generator operating status. The flow monitoring device is used to monitor the generator inlet oil flow rate and the generator oil tank return oil flow rate in real time; the liquid level monitoring device is used to monitor the generator oil tank level in real time; the positioning module is used to monitor the generator position in real time; and the voltage monitoring device is used to monitor the generator operating status in real time.

[0005] Specifically, the flow monitoring device includes an inlet flow meter and an outlet flow meter; the inlet flow meter is installed at the generator oil inlet pipe to monitor the generator oil inlet flow in real time; the outlet flow meter is installed at the generator oil tank return pipe to monitor the generator oil tank return flow in real time.

[0006] Specifically, the liquid level monitoring device includes multiple liquid level gauges, which are installed on different side walls inside the generator oil tank to monitor the liquid level in the generator oil tank in real time.

[0007] Specifically, the intelligent monitoring and control device for the generator also includes an energy storage power source, which supplies power to the intelligent monitoring and control device for the generator, and the generator charges the energy storage power source.

[0008] Specifically, a power switch is installed between the energy storage power source and the equipment powered by the energy storage power source, and the power switch is installed inside the explosion-proof distribution box.

[0009] Specifically, the intelligent generator monitoring and control device also includes an audible and visual alarm, which is connected to the PLC host. When the monitoring and control fusion signal indicates that an alarm is needed, the PLC host sends an alarm command to the audible and visual alarm.

[0010] Specifically, the PLC host is used to: perform alarm judgment through E(t) = P(t)F(t)L(t), where E(t) represents the measurement and control fusion signal at time t. E(t) = 1 indicates that the generator is normal and no alarm is needed, while E(t) = 0 indicates that the generator is abnormal and an alarm is needed. P(t) represents the generator position monitoring and control signal at time t, pos(t) represents the generator position at time t, ∩ denotes finding the intersection, and M is the preset region for the generator. Let P(t) represent an empty set, where P(t) = 1 indicates the generator is in a normal position, and P(t) = 0 indicates the generator is in an abnormal position; F(t) = [F in (t)-F return (t)-F max ]⊙Abs[F in (t)-F return (t)-F max F(t) represents the generator fuel tank fuel consumption monitoring signal at time t. in (t) represents the generator oil inlet flow rate at time t, F return (t) represents the generator oil tank return flow rate at time t, F max Let F(t) represent the maximum fuel consumption of the generator at time t, ⊙ represent the XOR operation, Abs represents the absolute value, F(t) = 1 indicates normal fuel consumption of the generator tank, and F(t) = 0 indicates abnormal fuel consumption of the generator tank; L(t) = [ΔC(t)⊙Abs[ΔC(t)]]S(t) + [ΔC(t)⊙Abs[ΔC(t)]]⊕S(t), where L(t) represents the generator tank level monitoring signal at time t, ΔC(t) represents the change in generator tank level at time t, S(t) represents the generator operating status monitoring signal, S(t) = 1 indicates the generator is in the start-up state, S(t) = 0 indicates the generator is in the stop state, ⊕ represents the XOR operation, L(t) = 1 indicates the generator tank level is normal, and L(t) = 0 indicates the generator tank level is abnormal.

[0011] The intelligent generator monitoring and control device also includes a cloud box and a client. The cloud box is connected to the PLC host and the client respectively to receive the monitoring and control fusion signal and transmit the monitoring and control fusion signal to the client. The client is used to display the monitoring and control status based on the monitoring and control fusion signal.

[0012] Specifically, the monitoring and control signals include the fuel replenishment monitoring and control signal. When the generator oil tank level is lower than the preset threshold, the fuel replenishment monitoring and control signal is updated to indicate that fuel replenishment is needed.

[0013] Specifically, the PLC host is configured with an alarm bit and multiple status bits. The alarm bit is used to store the fusion measurement and control signal, and the multiple status bits are used to store the generator position measurement and control signal, the generator fuel tank fuel consumption measurement and control signal, the generator fuel tank level measurement and control signal, and the generator operating status measurement and control signal, respectively. When the alarm bit is 0, the client displays an alarm and performs fault diagnosis based on the status bits. Fault diagnosis includes: when the status bit storing the generator position measurement and control signal is 0, the client displays an abnormal generator position; when the status bit storing the generator fuel tank fuel consumption measurement and control signal is 0, the client displays an abnormal generator fuel tank fuel consumption; when the status bit storing the generator fuel tank level measurement and control signal is 0, the client displays an abnormal generator fuel tank level.

[0014] The beneficial effects of the present invention include at least the following:

[0015] This invention can automatically collect and integrate multi-dimensional measurement and control signals from generators for measurement and control judgment. When abnormal situations such as oil theft or oil leakage occur, the intelligent generator measurement and control device provided by this invention can detect and alarm immediately, reducing reliance on manual monitoring, making measurement and control more accurate, and effectively solving the aforementioned problems and shortcomings in previous generator monitoring. It features comprehensive functions, accurate data, convenient operation, safety and efficiency, and cost savings.

[0016] Furthermore, IoT communication devices are used to monitor the generators on site in real time, and the monitoring and control signals can be viewed in real time through the client, which facilitates fault diagnosis and alarms. Attached Figure Description

[0017] Other features, objects, and characteristics of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of a generator intelligent monitoring and control device provided in an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the installation and connection of an intelligent generator monitoring and control device provided in an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of another intelligent generator monitoring and control device provided in an embodiment of the present invention. Detailed Implementation

[0021] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the invention. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] At oil and gas construction sites, oil from the generator's fuel tank is supplied to the generator through the generator's inlet pipe. The generator uses the oil in the tank to generate electricity, and excess oil flows back to the fuel tank through the return pipe. This invention provides an intelligent generator monitoring and control device, such as... Figure 1 As shown, the system includes a flow monitoring device, a liquid level monitoring device, a positioning module, a voltage monitoring device, and a PLC (Programmable Logic Controller) main unit. The PLC main unit is communicatively connected to the flow monitoring device, liquid level monitoring device, positioning module, and voltage monitoring device, respectively, and is used to determine multi-dimensional measurement and control signals based on the real-time collected generator measurement and control parameters, fuse the multi-dimensional measurement and control signals to obtain a measurement and control fused signal, and perform measurement and control judgments based on the measurement and control fused signal. The generator measurement and control parameters include generator inlet oil flow, generator oil tank return oil flow, generator oil tank level, generator position, and generator operating status. The flow monitoring device is used to monitor the generator inlet oil flow and generator oil tank return oil flow in real time; the liquid level monitoring device is used to monitor the generator oil tank level in real time; the positioning module is used to monitor the generator position in real time; and the voltage monitoring device is used to monitor the generator operating status in real time.

[0024] The beneficial effects of the intelligent generator monitoring and control device in the above embodiments include at least the following: it can automatically collect and integrate multi-dimensional monitoring and control signals of the generator, perform monitoring and control judgment, and when abnormal situations such as oil theft or oil leakage occur, the intelligent generator monitoring and control device provided by the present invention can detect and alarm immediately, reducing the reliance on manual monitoring, making the monitoring and control more accurate, effectively solving the aforementioned problems and deficiencies in previous generator monitoring, and has the characteristics of comprehensive functions, accurate data, convenient operation, safety and efficiency, and cost saving.

[0025] In some specific implementation methods, such as Figure 2As shown, the flow monitoring device includes an outlet flow meter and an inlet flow meter. The inlet flow meter is installed at the generator's oil inlet pipe to monitor the generator's oil inlet flow in real time. The outlet flow meter is installed at the generator's oil tank return pipe to monitor the generator's oil tank return flow in real time. The generator intelligent monitoring and control device also includes an energy storage power supply, which powers the generator intelligent monitoring and control device, and the generator charges the energy storage power supply. For example, the energy storage power supply powers the flow monitoring device, the liquid level monitoring device, the positioning module, the voltage monitoring device, and the PLC host. For example, in some optional embodiments, such as... Figure 2 As shown, the energy storage power supply uses a UPS (Uninterruptible Power Supply), the positioning module uses a GPS module (other positioning modules such as the Beidou satellite navigation system can also be used), the voltage monitoring device uses a multi-function meter (short for multi-function energy meter), and the generator is specifically a diesel generator. The UPS power supply powers the inlet flow meter, outlet flow meter, level gauge 1, level gauge 2, PLC host, multi-function meter, audible and visual alarm, GPS module, and cloud box. The diesel generator is connected to the UPS power supply and continuously charges the UPS power supply. When the generator stops working, the intelligent monitoring and control device can still continue to operate, monitoring the fuel level in the tank and the real-time location of the generator.

[0026] The liquid level monitoring device includes at least one liquid level gauge for real-time monitoring of the generator fuel tank level. In some improved embodiments, the liquid level monitoring device includes multiple liquid level gauges, which are respectively installed on different side walls of the generator fuel tank for real-time monitoring of the generator fuel tank level. Based on the data from multiple liquid level gauges, data analysis is performed to determine a reasonable fuel tank level. For example, a digital twin model of the fuel tank level is established based on the data from different liquid level gauges, and the actual fuel tank level is determined using the digital twin model. Figure 2 The liquid level monitoring device includes liquid level gauge 1# and liquid level gauge 2#, which are distributed at different positions on the inner wall of the oil tank. The smaller liquid level value can be determined as the liquid level of the generator oil tank.

[0027] In some specific implementations, a power switch is installed between the energy storage power source and the equipment supplied by the energy storage power source, and the power switch is installed inside an explosion-proof distribution box. For example... Figure 2 As shown, a power switch is installed between the UPS power supply and the PLC host and other electrical equipment. In order to improve the safety of the oil and gas construction site and avoid safety hazards caused by the power switch, the power switch is installed in the explosion-proof distribution box.

[0028] In some specific implementation methods, such as Figure 2 As shown, the intelligent generator monitoring and control device also includes an audible and visual alarm, which is connected to the PLC host. When the monitoring and control fusion signal indicates that an alarm is needed, the PLC host sends an alarm command to the audible and visual alarm.

[0029] In some specific implementations, the PLC host is specifically used for: alarm judgment via E(t) = P(t)F(t)L(t), where E(t) represents the fused measurement and control signal at time t. When E(t) is 1, it indicates that the generator is normal and no alarm is needed; when E(t) is 0, it indicates that the generator is abnormal and an alarm is needed. P(t) represents the generator position measurement and control signal at time t, F(t) represents the generator fuel tank fuel consumption measurement and control signal at time t, and L(t) represents the generator fuel tank level measurement and control signal at time t. A signal of 0 indicates abnormality, and 1 indicates normality. If any of P(t), F(t), or L(t) is 0, then E(t) is 0, indicating that the generator is abnormal and an alarm is needed. The above-mentioned fused measurement and control signal can trigger an alarm when any dimension of the measurement and control signal is abnormal, and it simplifies multi-dimensional measurement and control signals. The fused measurement and control signal only occupies one bit of data, resulting in a smaller data transmission volume, which helps to achieve high-speed real-time communication and reflect the real measurement and control status of the generator in real time.

[0030] In the above process, P(t), F(t), and L(t) are fused through E(t) = P(t)F(t)L(t). The following example, using the determination of P(t), F(t), and L(t) separately, illustrates the process of determining the multidimensional measurement and control signals based on the real-time acquired generator measurement and control parameters:

[0031] P(t) represents the generator position monitoring and control signal at time t, pos(t) represents the generator position at time t, ∩ denotes finding the intersection, and M is the preset region for the generator. Let F(t) represent the empty set. P(t) = 1 indicates the generator is in a normal position, and P(t) = 0 indicates the generator is in an abnormal position. In other words, as long as the generator is within the preset generator region, it is considered to be in a normal position, and the preset generator region can be set. F(t) = [F in (t)-F return (t)-F max ]⊙Abs[F in (t)-F return (t)-F max F(t) represents the generator fuel tank fuel consumption monitoring signal at time t. in (t) represents the generator oil inlet flow rate at time t, F return (t) represents the generator oil tank return flow rate at time t, F max F(t) represents the maximum fuel consumption of the generator at time t, ⊙ represents the XOR operation, Abs represents the absolute value, F(t) = 1 indicates that the generator fuel tank consumption is normal, and F(t) = 0 indicates that the generator fuel tank consumption is abnormal.

[0032] The above determination process for F(t) is as follows: the generator oil inlet flow rate F at time t.in (t) Generator oil tank return flow rate F at time t return (t) is used to obtain the generator fuel consumption at time t, and then compared with the generator's maximum load fuel consumption F at time t. max In comparison, if the generator fuel consumption at time t exceeds F... max If so, the fuel consumption is considered abnormal, and at this time [F in (t)-F return (t)-F max [F] is negative, and its absolute value is positive. in (t)-F return (t)-F max Since the absolute value is different, the XOR result is 0, meaning the generator fuel tank level control signal F(t) at time t is 0. L(t) = [ΔC(t)⊙Abs[ΔC(t)]]S(t) + [ΔC(t)⊙Abs[ΔC(t)]]⊕S(t), where L(t) represents the generator fuel tank level control signal at time t, ΔC(t) represents the change in generator fuel tank level at time t, and S(t) represents the generator operating status control signal. S(t) = 1 indicates the generator is running, S(t) = 0 indicates the generator is stopped, ⊕ represents the XOR operation, L(t) = 1 indicates the generator fuel tank level is normal, and L(t) = 0 indicates the generator fuel tank level is abnormal. For example, if a generator's maximum load fuel consumption is 35 liters per hour, and the fuel consumption exceeds 35 liters per hour during daytime operation, it can be determined that the equipment is leaking fuel. If the fuel level drops after the generator stops, it can also be determined that there is an abnormal situation such as a fuel leak.

[0033] The process for determining L(t) is as follows: Based on the generator oil tank level data, the change in generator oil tank level ΔC(t) at time t is obtained. When ΔC(t) is negative, it indicates that the generator oil tank level has decreased. In this case, ΔC(t) and its absolute value are different, and the XOR operation result of [ΔC(t)⊙Abs[ΔC(t)]] is 0. When ΔC(t) is non-negative, it indicates that the generator oil tank level has increased or remained unchanged. In this case, ΔC(t) and its absolute value are the same, and the XOR operation result of [ΔC(t)⊙Abs[ΔC(t)]] is 1. The generator operating status is monitored in real time using a voltage monitoring device. The generator voltage is measured using a multi-function meter. When a voltage of 380V is detected, it can be determined that the generator is running, and S(t) is 1. If no voltage is detected, it is determined that the generator is stopped, and S(t) is 0. Specifically, when the generator stops and the oil tank level drops, it indicates a possible abnormal situation such as oil leakage. At this time, ΔC(t) is negative, S(t) is 0, Abs[ΔC(t)] is positive, [ΔC(t)⊙Abs[ΔC(t)]] is 0, [ΔC(t)⊙Abs[ΔC(t)]]S(t) is 0, [ΔC(t)⊙Abs[ΔC(t)]]⊕S(t) is 0, so L(t) is 0. The oil level situation represented by L(t) is consistent with the abnormal oil level in the generator oil tank. The measurement and control judgment made through L(t) is correct. Similarly, when the generator stops but the oil tank level rises, or when the generator starts but the oil tank level rises or falls, it does not indicate an abnormality in the generator oil tank level. In this case, L(t) determined by [ΔC(t)⊙Abs[ΔC(t)]]S(t)+[ΔC(t)⊙Abs[ΔC(t)]]⊕S(t) is 1. The level situation represented by L(t) is consistent with the fact that the generator oil tank level is not abnormal, indicating that the measurement and control judgment made through L(t) is correct.

[0034] like Figure 3As shown, the intelligent generator monitoring and control device also includes a cloud box and a client. The cloud box communicates with both the PLC host and the client, receiving and transmitting fused monitoring and control signals to the client. The client displays the monitoring and control status based on the fused signals. Energy storage power also supplies power to the cloud box. The client can be remotely deployed, in forms including but not limited to mini-programs within an app, mobile apps, PC client systems, and PC web pages. The cloud box is a cloud-based enterprise cloud storage document management system that centrally stores scattered data, signals, and other information fragments. Through functions such as authorized access, change alerts, operation logs, historical versions, content protection, instant messaging, and workflow approval, it builds a secure and mobile internal document collaboration platform. During data storage in the cloud box, load balancing algorithms are typically used to determine data storage locations, rationally sending read and write tasks to data nodes to maintain usable storage space for the distributed system. The cloud box can achieve real-time data upload and download, meeting the requirements of remote monitoring and control. By combining data transmitted from various detectors such as on-site flow monitoring devices, liquid level monitoring devices, positioning modules, and voltage monitoring devices, the system enables real-time viewing of fuel consumption (including cumulative), operating time, operating duration (including cumulative), power generation, cumulative refueling, remaining fuel, equipment location, fault diagnosis, and alarm functions through computer operating systems, WeChat mini-programs, and mobile APP software.

[0035] In the above embodiments, IoT communication devices such as cloud boxes are used to monitor the generator in real time. The monitoring and control signals can be viewed in real time through a client, facilitating fault diagnosis and alarms. Correspondingly, operation commands can be sent to the PLC host via mobile APP, WeChat mini-program, PC, and other client platforms to perform data reading, filtering, copying, and statistical operations on various devices connected to the PLC. For example, a GPS chip enables real-time updates of the generator's location, displaying daily, weekly, monthly, and yearly power generation, fuel consumption, equipment operating time, and refueling volume statistics for each device. A multi-functional energy meter can display the generator's daily usage, monthly electricity consumption, and load operating time on the APP software via the generator intelligent monitoring and control device. Furthermore, based on the load operating time, the maintenance cycle of the generator or other equipment can be accurately calculated, providing remote diagnostic capabilities. Level gauges 1# and 2# measure the oil tank level in real time, and the data is transmitted from the PLC host system to the mobile APP software. The power switch is installed in an explosion-proof distribution box. The UPS power supply ensures real-time monitoring of the oil level in the tank through uninterrupted power supply. The data is transmitted to the PLC control system via a level gauge. If the oil level changes abnormally when the generator is running or stopped, an alarm will be triggered immediately by an on-site audible and visual alarm.

[0036] like Figure 2As shown, the intelligent generator monitoring and control device also includes an explosion-proof control box, which is fixed to the generator. The explosion-proof control box contains a positioning module, a voltage monitoring device, a PLC host, and a cloud box. Installing the positioning module, voltage monitoring device, PLC host, and cloud box inside the explosion-proof control box provides impact resistance, explosion protection, and good waterproof performance to protect the internal components.

[0037] In some specific implementations, the multi-dimensional monitoring and control signals also include a fuel replenishment monitoring and control signal. When the generator fuel tank level falls below a preset threshold, the fuel replenishment monitoring and control signal is updated to indicate that fuel replenishment is needed. The fuel replenishment monitoring and control signal can also be transmitted separately; the PLC host sends the fuel replenishment monitoring and control signal to the client via a cloud box, and an fuel replenishment alarm is triggered based on this signal. Figure 2 As shown, the flow meter, multi-function meter, and level gauge are first programmed via the PLC host. The flow meter is installed at the oil inlet and return pipes. The PLC host calculates the difference between the oil inlet and return to determine the instantaneous oil consumption for the current period. It can further calculate the daily and monthly oil consumption. Based on the level, the remaining oil volume is determined. When the oil volume is below 20% or the level is below the preset threshold, the client notifies the equipment operator to replenish the oil in time via WeChat, telephone, dedicated APP, etc. When the equipment is powered on, the real-time location, oil consumption, and real-time remaining oil volume can be displayed on the mobile phone or computer operating system for remote visual observation. The real-time display of power consumption, cumulative power consumption, and remaining maintenance time makes the equipment usage status clearly visible.

[0038] In some specific implementations, the aforementioned PLC host is configured with an alarm bit and multiple status bits. The alarm bit is used to store the fusion measurement and control signal, and the multiple status bits are used to store the generator position measurement and control signal, the generator fuel tank fuel consumption measurement and control signal, the generator fuel tank level measurement and control signal, and the generator operating status measurement and control signal, respectively. When the alarm bit is 0, the client displays an alarm and performs fault diagnosis based on the status bits of the measurement and control signals. Fault diagnosis includes: when the status bit storing the generator position measurement and control signal is 0, the client displays an abnormal generator position; when the status bit storing the generator fuel tank fuel consumption measurement and control signal is 0, the client displays an abnormal generator fuel tank fuel consumption; when the status bit storing the generator fuel tank level measurement and control signal is 0, the client displays an abnormal generator fuel tank level. This measurement and control signal structure uses only one alarm bit, facilitating rapid communication and transmission, enabling immediate alarms. Simultaneously, the status bits allow for fault diagnosis to determine the specific cause of the alarm, improving the efficiency of handling alarm events.

[0039] When the multi-dimensional measurement and control signal also includes a fuel replenishment measurement and control signal, the multi-dimensional measurement and control signal is fused using E(t) = P(t)F(t)L(t)O(t). O(t) represents the generator fuel tank fuel replenishment measurement and control signal at time t. O(t) = 1 indicates that the generator fuel tank does not need fuel replenishment, and O(t) = 0 indicates that the generator fuel tank needs fuel replenishment. When the fuel level is below 20% or below a preset threshold, O(t) is 0; otherwise, O(t) is 1. When the multi-dimensional measurement and control signal also includes a fuel replenishment measurement and control signal, the PLC host is configured with a status bit to store the fuel replenishment measurement and control signal.

[0040] Based on the same inventive concept, new measurement and control signals of different dimensions are determined. The above-mentioned measurement and control fusion signal can also integrate more measurement and control signals of more dimensions, and configure corresponding status bits in the PLC host to achieve more measurement and control targets, further improve the signal utilization, and enhance the measurement and control functions of the generator intelligent measurement and control device.

[0041] In the above embodiments, IoT communication equipment is used to monitor the generator in real time. The intelligent generator monitoring and control device provided by this invention allows for real-time viewing of fuel consumption (including cumulative), operating time, operating duration (including cumulative), power generation, cumulative refueling, remaining fuel, equipment location, fault diagnosis, and alarms via computer operating systems, WeChat mini-programs, and mobile APP software. This effectively solves problems such as incomplete generator self-monitoring, incomplete data statistics, low recording accuracy, and failure to promptly detect abnormal fuel loss. It can detect and alarm immediately, display the location to guide personnel to handle the situation, and automatically generate various statistical data for the generator equipment, effectively saving construction costs and achieving significant results.

[0042] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A generator intelligent monitoring and control device, characterized in that, It includes a flow monitoring device, a liquid level monitoring device, a positioning module, a voltage monitoring device, and a PLC main unit; The PLC host is communicatively connected to the flow monitoring device, liquid level monitoring device, positioning module and voltage monitoring device respectively. It is used to determine multi-dimensional measurement and control signals according to the real-time collected generator measurement and control parameters, fuse the multi-dimensional measurement and control signals to obtain the measurement and control fusion signal, and make measurement and control judgments based on the measurement and control fusion signal. The generator measurement and control parameters include generator inlet oil flow rate, generator oil tank return oil flow rate, generator oil tank level, generator position, and generator operating status. The flow monitoring device is used to monitor the generator inlet oil flow and the generator oil tank return oil flow in real time. The liquid level monitoring device is used to monitor the liquid level in the generator oil tank in real time; The positioning module is used to monitor the generator's position in real time; The voltage monitoring device is used to monitor the generator's operating status in real time.

2. The intelligent generator monitoring and control device according to claim 1, characterized in that, The flow monitoring device includes: an inlet flow meter and an outlet flow meter; The inlet flow meter is installed at the generator oil inlet pipe to monitor the generator oil inlet flow in real time. The outlet flow meter is installed at the return oil pipe of the generator oil tank to monitor the return oil flow of the generator oil tank in real time.

3. The intelligent generator monitoring and control device according to claim 1, characterized in that, The liquid level monitoring device includes multiple liquid level gauges, which are installed on different side walls inside the generator oil tank to monitor the liquid level in the generator oil tank in real time.

4. The intelligent generator monitoring and control device according to claim 1, characterized in that, The intelligent generator monitoring and control device also includes an energy storage power source, which supplies power to the intelligent generator monitoring and control device and charges the energy storage power source.

5. The intelligent generator monitoring and control device according to claim 1, characterized in that, The intelligent generator monitoring and control device also includes an audible and visual alarm, which is communicatively connected to the PLC host. When the monitoring and control fusion signal indicates that an alarm is needed, the PLC host sends an alarm command to the audible and visual alarm.

6. The intelligent generator monitoring and control device according to claim 1, characterized in that, The PLC host is specifically used for: Alarm judgment is performed using E(t) = F(t)L(t)P(t), where E(t) represents the fusion signal of measurement and control at time t. E(t) = 1 indicates that the generator is normal and no alarm is needed, while E(t) = 0 indicates that the generator is abnormal and an alarm is needed. F(t) = [F in (t)-F return (t)-F max ]☉Abs[F in (t)-F return (t)-F max F(t) represents the generator fuel tank fuel consumption monitoring signal at time t. in (t) represents the generator oil inlet flow rate at time t, F return (t) represents the generator oil tank return flow rate at time t, F max F(t) represents the maximum fuel consumption of the generator at time t, ⊙ represents the XOR operation, Abs represents the absolute value, F(t) = 1 indicates that the generator fuel tank fuel consumption is normal, and F(t) = 0 indicates that the generator fuel tank fuel consumption is abnormal. L(t) represents the generator oil tank level monitoring and control signal at time t, ΔC(t) represents the change in generator oil tank level at time t, and S(t) represents the generator operating status monitoring and control signal. S(t) = 1 indicates that the generator is in the start-up state, and S(t) = 0 indicates that the generator is in the stop-down state. This represents the XOR operation. A value of 1 in L(t) indicates that the generator oil tank level is normal, while a value of 0 in L(t) indicates that the generator oil tank level is abnormal. P(t) represents the generator position monitoring and control signal at time t, pos(t) represents the generator position at time t, and M is the preset area of ​​the generator. Let P(t) represent an empty set. P(t) = 1 indicates that the generator is in a normal position, and P(t) = 0 indicates that the generator is in an abnormal position.

7. The intelligent generator monitoring and control device according to any one of claims 1 to 6, characterized in that, The intelligent generator monitoring and control device also includes a cloud box and a client application. The cloud box is connected to the PLC host and the client respectively, and is used to receive the measurement and control fusion signal and transmit the measurement and control fusion signal to the client. The client is used to display the measurement and control status based on the measurement and control fusion signal.

8. The intelligent generator monitoring and control device according to claim 7, characterized in that, The intelligent monitoring and control device for the generator also includes an explosion-proof control box, which is fixed on the generator. The explosion-proof control box contains the positioning module, voltage monitoring device, PLC host, and cloud box.

9. The intelligent generator monitoring and control device according to claim 7, characterized in that, The monitoring and control signals include the fuel replenishment monitoring and control signal. When the generator oil tank level is lower than the preset threshold, the fuel replenishment monitoring and control signal is updated to indicate that fuel replenishment is needed.

10. The intelligent generator monitoring and control device according to claim 7, characterized in that, The PLC host is equipped with an alarm bit and multiple status bits. The alarm bit is used to store the measurement and control fusion signal, and the multiple status bits are respectively used to store the generator position measurement and control signal, the generator fuel tank fuel consumption measurement and control signal, the generator fuel tank liquid level measurement and control signal, and the generator operating status measurement and control signal. When the alarm bit is 0, the client displays an alarm and performs fault diagnosis based on the status bit. The fault diagnosis includes: When the status bit storing the generator position monitoring signal is 0, the client displays an abnormal generator position. When the status bit of the generator fuel tank fuel consumption monitoring signal is 0, the client displays an abnormal generator fuel tank fuel consumption. When the status bit of the generator oil tank level monitoring signal is 0, the client displays an abnormal generator oil tank level.

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