A power generation control method and device based on self power of an engineering rescue vehicle

Abstract

The application relates to a power generation control method and device based on the self power of an engineering emergency vehicle, and relates to the field of engineering emergency vehicles, which comprises a starting generator, acquires current parameters collected by a current acquisition module, finds corresponding electric appliance types according to the current parameters, finds standard currents corresponding to the electric appliance types according to the electric appliance types, acquires emergency vehicle signals collected by a signal receiving device, obtains the number of emergency vehicles according to the emergency vehicle signals, obtains the number of electric appliance types according to the electric appliance types, forms an access sequence according to the number of electric appliance types and the electric appliance types, maps the electric appliances to the power output interfaces of the generator according to the access sequence through a multi-loop power supply switching module to form a mapping relationship, and receives an access completion signal fed back by the generator; when the access completion signal is received, corresponding standard currents are sequentially output to the electric appliances through a current adjusting device according to the mapping relationship. The application has the effect of improving the electric safety of the engineering emergency vehicle.

Description

Technical Field

[0001] This invention relates to the field of engineering emergency rescue vehicles, and in particular to a power generation control method and device based on the power of the engineering emergency rescue vehicle itself. Background Technology

[0002] Engineering emergency vehicles are specialized vehicles designed for sudden failures and emergency repairs in municipal, power, communication, gas, water supply, and flood control sectors. They are typically equipped with generators, power distribution devices, specialized repair equipment, and auxiliary tools, enabling them to quickly reach the accident site and provide stable power independently in the absence of external mains power. They can also carry out emergency operations such as pipeline repair, fault handling, emergency drainage, and power restoration and lighting to ensure that public facilities are quickly restored to normal operation.

[0003] In existing technologies, when using a power take-off (PTO) to generate electricity from the vehicle's own power, the operator must first stop the vehicle, put the gearbox in neutral, and then manually pull the lever to engage the internal gears of the PTO, outputting the vehicle's engine power to the generator. After that, the operator must return to the cab and start the engine to drive the generator to generate electricity. At the same time, during the power output process, only the output voltage and frequency are kept stable, and the current is entirely determined by the connected electrical appliances. The system only provides simple overload or short-circuit protection.

[0004] Regarding the aforementioned technologies, the entire process of using a power take-off (PTO) to generate electricity from the vehicle's own power relies on manual on-site operation and cannot be automatically engaged. Furthermore, during the power output process, the current cannot be actively adjusted, limited, or distributed, which reduces the electrical safety of the emergency vehicle. Summary of the Invention

[0005] To improve the electrical safety of emergency rescue vehicles, this invention provides a power generation control method and device based on the vehicle's own power.

[0006] In a first aspect, the present invention provides a power generation control method based on the self-powered power of an engineering emergency rescue vehicle, employing the following technical solution: A power generation control method based on the self-powered power of an engineering emergency rescue vehicle includes: Step 1: Start the preset generator and obtain the current parameters of the electrical appliances collected by the preset current acquisition module; Step 2: Search for the corresponding appliance type in the preset appliance database based on the current parameters; Step 3: Find the standard current corresponding to the type of electrical appliance; Step 4: Obtain the emergency vehicle signal collected by the preset signal receiving device; Step 5: Count the number of rescue vehicles based on their signals; Step 6: Count the number of appliance types based on the appliance type; Step 7: Determine the connection order based on the number and type of electrical appliances; Step 8: Connect the electrical appliances to the generator power output interface in the order of access through the preset multi-circuit power supply switching module to form a mapping relationship, and receive the access completion signal from the generator; Step 9: When the access completion signal is received, the corresponding standard current is output to the electrical appliance through the current regulating device according to the mapping relationship.

[0007] By adopting the above technical solution, analyzing the current parameters of electrical appliances, connecting the same type of electrical appliance to the same generator, and outputting a corresponding current to the electrical appliance based on the standard current of the found electrical appliance, the electrical safety of the emergency rescue vehicle is improved.

[0008] Optional, also includes: Step 10: Obtain the generator's real-time power and rated power; Step 11: Calculate the difference between the real-time power and the rated power based on the real-time power and the rated power; Step 110: When the difference is greater than 0, define the difference as the overload value; Step 111: When the difference is less than 0, define the difference as the underload value; Step 112: If the overload value does not exist, do not execute the subsequent steps; Step 113: If both overload and underload values ​​exist, compare all underload values ​​with the overload values ​​to obtain an underload value that is not less than the overload value, and define the generator corresponding to the underload value as an underload generator. Step 114: Find the generator corresponding to the overload value based on the overload value, and define the generator as an overload generator; Step 115: Connect the underloaded generator and the overloaded generator in parallel using a preset parallel controller to obtain an overload compensation circuit; Step 116: If an overload value exists but an underload value does not exist, the priority of the appliance connected to the overload generator is found in the preset appliance priority database according to the overload generator, and the priority of the appliance is defined as the overload appliance priority. Step 117: Disconnect the power supply to overloaded appliances in order of priority from low to high until the real-time power does not exceed the rated power.

[0009] By adopting the above technical solution, the connection of electrical appliances is adjusted according to the power of the generator after the electrical appliances are connected. Based on the actual efficiency of the generator, overloaded and non-overloaded generators are connected in parallel to prevent generator failure and improve the power safety of the emergency rescue vehicle.

[0010] Optional, also includes: Step 1130: When the underload value is not less than the overload value, execute steps 114 and 115; Step 1131: When the underload value is less than the overload value, the combined underload value is obtained by combining multiple underload values. Step 1132: If the combined underload value is not less than the overload value, find the generator corresponding to the underload value contained in the combined underload value, and define the generator as the combined underload generator. Step 1133: Connect the combined underload generator and the overload generator in parallel using the parallel controller to obtain a combined overload compensation circuit; Step 1134: After combining, mark the corresponding underload value as occupied; Step 1135: If the combined underload value is less than the overload value, proceed to steps 116 and 117.

[0011] By adopting the above technical solution, the underloaded generators are reasonably combined according to their underload values. The combined underloaded generators are then connected in parallel with the overloaded generators to form a combined overload compensation circuit. This achieves precise compensation for the overloaded generators, prevents generator failures due to overload, and improves the power safety of the engineering emergency vehicle.

[0012] Optional, also includes: Step 1150: Find the compliant underload value that is not less than the overload value based on the underload value, and define the underload generator corresponding to the compliant underload value as the compliant underload generator; Step 1151: Calculate the number of loads that meet the load requirements based on the load requirements; Step 11510: When the number of compliant underload values ​​is no greater than 1, the compliant underload generator and the overload generator are connected in parallel through the parallel controller to obtain an overload compensation circuit; Step 11511: When the number of qualified underload values ​​is greater than 1, compare all qualified underload values ​​to find the minimum underload value, and define the qualified underload generator corresponding to this underload value as the optimal underload generator. Step 11512: Connect the optimal underload generator and the overload generator in parallel using the parallel controller to obtain the optimal overload compensation circuit.

[0013] By adopting the above technical solution, underload generators whose power can match the overload requirements are selected. Based on the underload value of the underload generator that meets the requirements, the underload generator with the smallest underload value is connected in parallel with the overload generator to prevent the underload value from being too excessive, so that more parallel connections can be generated in the future, thereby improving the power safety of the engineering emergency vehicle.

[0014] Optional, also includes: Step 12: Obtain the generator's power generation status; Step 120: When the power generation is in the preset operating condition, no additional operation is required; Step 121: When the power generation status is the preset shutdown status, obtain the generator whose power generation status is shutdown status and define the generator as the shutdown generator; Step 122: Locate the electrical appliances connected to the generator that is out of service based on the generator being out of service, and define the electrical appliances as out-of-service electrical appliances; Step 123: Find the real-time power of the electrical appliance under normal operating conditions based on the electrical appliance that is shut down, and define the real-time power as the load value; Step 1230: When the load value is not greater than the underload value, find the underload value that is not less than the load value based on the underload value and the load value, and define the generator corresponding to the underload value as the off-load generator. Step 1231: Connect the power supply of the shutdown electrical appliances to the generator power output interface of the shutdown and underload generator through the multi-circuit power supply switching module; Step 1232: When the load value is greater than the underload value, output a preset stop signal.

[0015] By adopting the above technical solution, electrical appliances that do not receive power are connected to qualified generators based on the generator's power generation status, and generators with corresponding power consumption are connected based on the actual power generation, thereby improving the power supply stability of engineering emergency vehicles.

[0016] Optional, also includes: Step 1136: Calculate the number of overload values ​​based on the overload values; Step 11360: If the number of overload values ​​is not greater than 1, no additional steps are performed; Step 11361: If the number of overload values ​​is greater than 1, find the corresponding number of appliances of the same type according to the appliance type, and define the number of appliances of the same type as the number of appliances. Step 11362: Find the corresponding appliance type weight value based on the appliance type; Step 11363: Calculate the generator weight value based on the number of appliances of the same type and the weight value of the appliance type; Step 11364: Compare all generator weight values ​​to obtain the generator weight value with the largest value, and define the generator weight value with the largest value as the priority generator weight value; Step 11365: Find the overload generator corresponding to the priority generator weight value based on the priority generator weight value, define the overload generator corresponding to the priority generator weight value as the priority overload generator, and output the preset priority parallel signal.

[0017] By adopting the above technical solution, the corresponding weight value is calculated according to the type and number of connected electrical appliances. Based on the actual number of overloaded generators, the overloaded generators are prioritized by comparing the weight values, thereby improving the power supply reliability of the emergency rescue vehicle.

[0018] Optional, also includes: Step 1137: Calculate the number of priority generator weight values ​​based on the priority generator weight values; Step 11370: If the number of priority generator weight values ​​is not greater than 1, no additional steps are performed; Step 11371: If the number of priority generator weight values ​​is greater than 1, find the appliance type of the appliance connected to the priority overload generator according to the priority overload generator, and define the appliance type of the appliance connected to the priority overload generator as the priority appliance type. Step 11372: Find the priority of the appliance corresponding to the priority appliance type based on the priority appliance type, and define the priority of the appliance as the priority appliance priority; Step 11373: Compare the priorities of all priority appliances to obtain the priority of the highest priority appliance, and define the priority appliance type corresponding to the highest priority appliance type as the highest priority appliance type; Step 11374: Based on the highest priority appliance type, find the priority overload generator connected to the appliance of the highest priority appliance type, determine the priority overload generator connected to the appliance of the highest priority appliance type, and output the preset priority update command.

[0019] By adopting the above technical solution, the generator with the highest priority for connected electrical appliances is obtained based on their priority. Based on the number of overloaded generators with the largest weight value, the overloaded generators that are given priority in processing are compared with the priority of connected electrical appliances, thereby improving the power supply reliability of emergency rescue vehicles.

[0020] Optional, also includes: Step 1138: Find the number of overloaded generators connected to the highest priority appliance type based on the highest priority appliance type, and define the number of overloaded generators connected to the highest priority appliance type as the highest priority access quantity. Step 11380: If the highest priority access quantity is not greater than 1, no additional steps are executed; Step 11381: If the highest priority access quantity is greater than 1, find the highest priority access quantity based on the highest priority appliance type; Step 11382: Compare the number of all highest priority appliances connected to obtain the highest priority appliance connected with the largest value, determine the priority overload generator with the most connected appliances of the highest priority appliance type, and output the priority update command.

[0021] By adopting the above technical solution, the generator with the most highest priority electrical appliances is obtained based on the number of highest priority electrical appliances connected. Based on the number of highest priority electrical appliances connected, the overloaded generator is prioritized for processing, thereby improving the power supply reliability of the emergency rescue vehicle.

[0022] Optional, also includes: Step 1152: After obtaining the overload compensation circuit in parallel, locate the parallel generator based on the overload compensation circuit; Step 1153: Find the real-time parallel power based on the parallel generators; Step 1154: Calculate the parallel load rate based on the real-time parallel power and rated power; Step 1155: Compare all parallel load rates to obtain the maximum and minimum parallel load rates; Step 1156: Calculate the difference between the maximum parallel load rate and the minimum parallel load rate based on the maximum parallel load rate and define this difference as the load deviation; Step 11560: If the load deviation is not greater than the preset correction threshold, no additional steps are performed; Step 11561: When the load deviation is greater than the correction threshold, find the electrical appliances connected to the parallel generator corresponding to the maximum parallel load rate according to the maximum parallel load rate; Step 11562: Retrieve the transferable electrical appliances based on the load deviation; Step 11563: Connect the transferable electrical appliances to the parallel generator corresponding to the minimum parallel load rate through the multi-circuit power supply switching module; Step 1157: Repeat steps 1152 to 11563 until the load deviation is no greater than the correction threshold.

[0023] By adopting the above technical solution, the operating power of the generators is adjusted after parallel connection. Based on the power difference between the parallel generators, the connection of electrical appliances connected to the parallel generators is adjusted to balance the operating power of the parallel generators and improve the power supply reliability of the emergency rescue vehicle.

[0024] Secondly, the present invention provides a power generation control device based on the self-powered power of an engineering emergency rescue vehicle, which adopts the following technical solution: A power generation control device based on the self-power of an engineering rescue vehicle is applied to the power generation control method based on the self-power of an engineering rescue vehicle as described above. The device includes an engine set to provide power; a power take-off (PTO) unit mounted on the engine set to extract power from the engine set; a PTO shaft connected to the end of the PTO unit furthest from the engine set; a generator connected to the end of the PTO shaft furthest from the PTO unit to convert the power from the engine set into electricity; and an electronic control unit connected to the generator to regulate the generator.

[0025] By adopting the above technical solution, analyzing the current parameters of electrical appliances, connecting the same type of electrical appliance to the same generator, and outputting a corresponding current to the electrical appliance based on the standard current of the found electrical appliance, the electrical safety of the emergency rescue vehicle is improved.

[0026] In summary, the present invention has at least one of the following beneficial technical effects: Based on the standard current of the electrical appliance, the corresponding current is output to the electrical appliance, which improves the electrical safety of the emergency rescue vehicle. By connecting overloaded and non-overloaded generators in parallel to share the load, generator failures are prevented, thus improving the electrical safety of the emergency rescue vehicle. Overloaded generators are prioritized based on the weight values ​​of connected electrical appliances, thus improving the power supply reliability of emergency rescue vehicles. Attached Figure Description

[0027] Figure 1 This is a flowchart of a power generation control method based on the self-power of an engineering emergency rescue vehicle, as described in an embodiment of this application.

[0028] Figure 2 This is a schematic diagram of the structure of a power generation control device based on the self-power of an engineering emergency rescue vehicle, as described in an embodiment of this application.

[0029] The parts referred to by the numbers in the above attached diagrams are as follows: 1. Engine unit; 2. Power take-off (PTO); 3. Power take-off shaft; 4. Generator; 5. Electronic control unit. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0031] This invention discloses a power generation control method based on the self-powered engine of an engineering emergency rescue vehicle. (Refer to...) Figure 1 A power generation control method based on the self-powered power of an engineering emergency rescue vehicle includes: Step 1: Start the preset generator 4 and obtain the current parameters of the electrical appliances collected by the preset current acquisition module.

[0032] The current acquisition module is a detection device used to collect the operating current signal of electrical appliances in real time. Current parameters refer to the digital signal of the appliance's current. A Hall effect current sensor converts the current into an analog signal, which is then converted into a digital signal by an ADC (Analog-to-Digital Converter) unit and input to the system. The Hall effect sensor collects the loop current and outputs a 4 to 20mA analog signal, which is then converted into a digital signal by the ADC unit and transmitted to the system. The acquisition period is 100ms, with an accuracy of ±0.1A. After the worker stops the emergency vehicle and presses the start button, the electronic parking system engages the vehicle's handbrake. The system then shifts the vehicle to neutral and connects the power take-off (PTO) 2 to the engine unit 1 of the emergency vehicle to complete the power take-off.

[0033] Step 2: Find the corresponding appliance type in the preset appliance database based on the current parameters.

[0034] An appliance database refers to a data set that stores the correspondence between current parameters, standard currents, and appliance types. Under standard ultra-high pressure (or normal pressure, depending on the actual application scenario) conditions, various commonly used appliances in emergency rescue operations are collected, including but not limited to: LED lighting, submersible sewage pumps, hydraulic demolition power stations, welding machines, angle grinders, and handheld drills. Each appliance is connected to a test circuit, and using a Hall current sensor of the same model as the current acquisition module of this invention, the current waveform data of the appliance from startup to stable operation is recorded at a sampling frequency of not less than 1kHz. The effective current value during the stable operation phase of the appliance is extracted as a characteristic current parameter. For inductive loads (such as motors) with significant differences between startup and operating currents, the peak value and duration of the startup current are also recorded as auxiliary identification features. The calibrated current parameters (which can be a threshold range, such as 3A-6A corresponding to water pumps), standard currents, and appliance type identifiers are mapped one-to-one and entered into the system to form the appliance database. Inputting current parameters into the appliance database retrieves the corresponding appliance type.

[0035] Step 3: Find the standard current corresponding to the type of electrical appliance.

[0036] Standard current refers to the current output to an electrical appliance under normal conditions. You can retrieve the corresponding standard current by entering the appliance type in the appliance database.

[0037] Step 4: Obtain the emergency vehicle signal collected by the preset signal receiving device.

[0038] The signal receiving device is used to receive signals indicating the operational status of emergency rescue vehicles. Each emergency rescue vehicle is equipped with a wireless communication module (such as Wi-Fi, ZigBee, or a dedicated wireless data radio). After the vehicle's power generation control system is activated, a temporary Ad-hoc local area network is automatically formed. The first vehicle to start, or the vehicle designated by the operator, is elected as the master node, and the remaining vehicles act as slave nodes. Each emergency rescue vehicle periodically broadcasts a heartbeat signal containing its unique vehicle identifier (ID) and current operational status (such as generator power and appliance connection status) through its signal receiving device. By receiving these heartbeat signals, the master node can count the number of emergency rescue vehicles currently online in the network and determine the real-time load capacity of each generator.

[0039] Step 5: Count the number of rescue vehicles based on their signals.

[0040] The number of emergency response vehicles refers to the number of emergency response vehicles within a designated area, which is freely set by staff based on the length of the power lines. The number of emergency response vehicles is determined by counting the number of signals received. For example, if three emergency response vehicle signals are received, the number of emergency response vehicles is 3.

[0041] Step 6: Count the number of appliance types based on the appliance type.

[0042] The number of appliance types refers to the number of appliance types connected to generator 4. The number of appliance types is calculated by counting the retrieved appliance types. For example, if 3 appliance types are retrieved, the number of appliance types is 3.

[0043] Step 7: Determine the connection order based on the number and type of electrical appliances.

[0044] The access sequence refers to the order in which electrical appliances are connected to the generator power supply interface. When the system receives a new electrical appliance access request, the master control node calculates the globally optimal access sequence and mapping relationship based on the number of appliance types, the remaining capacity of each generator 4, and the appliance priority as counted in step 6. This mapping relationship specifies which vehicle's power output interface the appliance should connect to. Subsequently, the master control node sends control commands to the corresponding slave nodes, and the multi-circuit power supply switching modules of each vehicle coordinate to execute the access action.

[0045] Step 8: Connect the electrical appliances to the generator power output interface in the order of access through the preset multi-circuit power supply switching module to form a mapping relationship, and receive the access completion signal fed back by generator 4.

[0046] The multi-circuit power supply switching module is an electrically controlled switching device that can control multiple electrical appliances to independently connect to different generators 4. Through internal relay operation, it connects the corresponding generator ports according to the connection sequence. The mapping relationship refers to the fixed one-to-one correspondence between electrical appliances and generator output interfaces. The "electrical appliance-generator output interface" mapping relationship is established and stored in the system based on the one-to-one correspondence between electrical appliances and their corresponding generator output interfaces. The connection completion signal is the confirmation signal returned by the system after an electrical appliance has successfully connected to the generator circuit. The connection completion signal is preset by the operator; after the circuit is connected, the module sends a fixed message to the system. Generator 4 and all electrical appliances are connected to the same transfer cabinet, and the multi-circuit power supply switching module connects the corresponding generator output interfaces and electrical appliances according to the mapping relationship.

[0047] Step 9: When the access completion signal is received, the corresponding standard current is output to the electrical appliance through the current regulating device according to the mapping relationship.

[0048] A current regulating device is a control device that outputs a stable operating current according to the needs of electrical appliances. For example, if the standard current obtained from the database is 5A, the current regulating device aims to output a stable current with a fluctuation of ≤±5% to achieve standard power supply.

[0049] When the connection completion signal is received, it means that the electrical appliance has been connected to the corresponding generator circuit and can start outputting current. According to the mapping relationship, the corresponding standard current is output to the electrical appliance through the current regulating device in sequence.

[0050] This also includes: Step 10: Obtain the real-time power and rated power of generator 4.

[0051] Real-time power refers to the instantaneous electrical power that generator 4 is currently outputting. Real-time power = real-time voltage × real-time current; the required data is read directly from the system. For example, if the voltage is 400V and the current is 50A, the real-time power is 20kW. Rated power refers to the maximum output power that generator 4 is designed to operate safely and continuously for a long period. This data is a factory-set parameter and is pre-entered into the system by the operator.

[0052] Step 11: Calculate the difference between real-time power and rated power based on real-time power and rated power.

[0053] The difference refers to the numerical gap between the real-time power and the rated power. The difference is obtained by subtracting the rated power from the real-time power.

[0054] Step 110: When the difference is greater than 0, define the difference as the overload value.

[0055] Overload value refers to the amount by which the real-time power of generator 4 exceeds the rated power.

[0056] When the difference is greater than 0, it indicates that generator 4 has been overloaded, and this difference is defined as the overload value.

[0057] Step 111: When the difference is less than 0, define the difference as the underload value.

[0058] Underload value refers to the amount of surplus power of generator 4 that is not used.

[0059] When the difference is less than 0, it indicates that the corresponding generator 4 has a load-bearing margin, and this difference is defined as the underload value.

[0060] Step 112: If the overload value does not exist, do not execute the subsequent steps.

[0061] If no overload value is found, it means that generator 4 has not experienced an overload, there is no potential safety hazard in the power supply, and the subsequent steps will not be performed.

[0062] Step 113: If both overload and underload values ​​exist, compare all underload values ​​with the overload values ​​to obtain an underload value that is not less than the overload value, and define the generator 4 corresponding to the underload value as an underload generator.

[0063] The underload value that is not less than the overload value is directly selected from all the underload values. The generator 4 corresponding to this underload value is the underload generator.

[0064] If both overload and underload values ​​exist, it means that the overloaded generator can be compensated by a parallel generator circuit. Compare all underload values ​​with the overload values ​​to obtain an underload value that is not less than the overload value. The generator 4 corresponding to this underload value is defined as the underloaded generator.

[0065] Step 114: Find the generator 4 corresponding to the overload value based on the overload value, and define the generator 4 as the overload generator.

[0066] By directly inputting the overload value into the system, the corresponding generator 4 can be retrieved. This generator 4 is the overload generator.

[0067] Step 115: Connect the underload generator and the overload generator in parallel using a preset parallel controller to obtain an overload compensation circuit.

[0068] A parallel controller is a control device that enables multiple generators (4) to operate synchronously in parallel. An overload compensation circuit is a power supply circuit formed by connecting underloaded and overloaded generators in parallel to eliminate overloads. When it is necessary to connect generators (4) from different vehicles in parallel to compensate for overloads, the master control node issues a synchronization command through the parallel controller. Upon receiving the synchronization command, the parallel controllers of each slave node fine-tune the excitation current and throttle opening of their respective generators (4) to make the output voltage, frequency, and phase of each generator (4) tend to be consistent. When the synchronization conditions are met (voltage difference < 5%, frequency difference < 0.2Hz, phase difference < 5°), the master control node controls the grid-connected contactor to close, enabling the safe parallel operation of multiple vehicle-mounted generators and forming an overload compensation circuit.

[0069] Step 116: If an overload value exists but an underload value does not exist, the overload generator 4 searches the preset appliance priority database to find the appliance priority corresponding to the appliance connected to the overload generator, and defines the appliance priority as the overload appliance priority.

[0070] The appliance priority database is a database that stores the power supply importance levels of various appliances. Based on emergency response procedures and safety requirements, on-site commanders or the system pre-sets a priority for each type of appliance. Priorities can be represented numerically; for example, the lower the value, the higher the priority (Level 1 is the highest priority, such as life support equipment and emergency communication equipment; Level 2 is critical equipment, such as drainage pumps; Level 3 is auxiliary equipment, such as lighting; Level 4 is general tools, etc.). The appliance type identifier is associated with its corresponding priority value and stored to form the appliance priority database. Entering the appliance type into the database retrieves the corresponding appliance priority.

[0071] If an overload value exists but an underload value does not exist, it means that the overloaded generator cannot be compensated by parallel connection. It is necessary to disconnect the power supply to some electrical appliances to ensure electrical safety. The priority of the overloaded electrical appliances is determined based on the overloaded generator.

[0072] Step 117: Disconnect the power supply to overloaded appliances in order of priority from low to high until the real-time power does not exceed the rated power.

[0073] Prioritize overloaded appliances from lowest to highest priority. First, disconnect the lowest priority appliance. Then, check if the real-time power is not greater than the rated power. If it is, continue to disconnect the lowest priority appliance among the remaining appliances. Repeat the above process until the real-time power is not greater than the rated power.

[0074] This also includes: Step 1130: When the underload value is not less than the overload value, execute steps 114 and 115.

[0075] When the underload value is not less than the overload value, it means that the overload generator can be compensated by a single underload generator, and steps 114 and 115 are executed.

[0076] Step 1131: When the underload value is less than the overload value, the combined underload value is obtained by combining the underload values. The combined underload value is the underload value obtained by adding multiple underload values.

[0077] A combined underload value is the underload value obtained by adding multiple underload values ​​together. The combined underload value is determined by the number of underload values, ranging from 2 to the total number of underload values. The combined underload value is obtained by adding the underload values ​​in the combination. For example, if there are three underload values ​​(1, 2, and 3), then there are four combinations: 1+2, 1+3, 2+3, and 1+2+3; and four combined underload values: 3, 4, 5, and 6.

[0078] When the underload value is less than the overload value, multiple underload generators can be connected in parallel to compensate for the overload generator, and the combined underload value can be obtained based on the underload value.

[0079] Step 1132: If the combined underload value is not less than the overload value, find the generator 4 corresponding to the underload value contained in the combined underload value, and define the generator 4 as the combined underload generator.

[0080] The combined underload value is found by searching for the underload value contained in the combined underload value. The corresponding generator 4 is retrieved by entering the underload value in the system. This generator 4 is the combined underload generator.

[0081] If the combined underload value is not less than the overload value, it indicates that there is a combination of underload generators that can compensate for the overload generator. Based on the combined underload value, the underload generator corresponding to the underload value contained in the combined underload value can be found.

[0082] Step 1133: Connect the combined underload generator and the overload generator in parallel using the parallel controller to obtain a combined overload compensation circuit.

[0083] A combined overload compensation circuit refers to a compensation circuit formed by connecting multiple combined underload generators and one overload generator in parallel. The parallel connection method was described in step 115.

[0084] Step 1134: After combining, mark the corresponding underload value as occupied.

[0085] The underload values ​​included in the combined underload values ​​are directly marked as occupied and will not participate in subsequent overload generator compensation.

[0086] Step 1135: If the combined underload value is less than the overload value, proceed to steps 116 and 117.

[0087] If the combined underload value is less than the overload value, it means that the overloaded generator cannot be compensated by parallel connection. Some electrical appliances need to be disconnected, and steps 116 and 117 need to be executed.

[0088] This also includes: Step 1150: Find the compliant underload value that is not less than the overload value based on the underload value, and define the underload generator corresponding to the compliant underload value as a compliant underload generator.

[0089] A compliant underload value refers to an underload value that is not less than the overload value. You can directly filter through all underload values ​​to find the one that is not less than the overload value; this is the compliant underload value. Alternatively, you can input the compliant underload value into the system to directly retrieve the corresponding underloaded generator; this is the compliant underloaded generator.

[0090] Step 1151: Calculate the number of eligible underload values ​​based on the eligible underload values.

[0091] The number of compliant underload values ​​refers to the total number of loads that meet the required underload criteria. This is obtained by directly counting all compliant underload values; this number represents the total number of compliant underload values.

[0092] Step 11510: When the number of compliant underload values ​​is no greater than 1, the compliant underload generator and the overload generator are connected in parallel through the parallel controller to obtain an overload compensation circuit.

[0093] The parallel connection method here was described in step 115.

[0094] When the number of underload values ​​is no more than 1, it indicates that there is only one possibility of parallel connection. The underload generator and the overload generator are connected in parallel through the parallel controller to obtain the overload compensation circuit.

[0095] Step 11511: When the number of qualified underload values ​​is greater than 1, compare all qualified underload values ​​to find the minimum underload value, and define the qualified underload generator corresponding to this underload value as the optimal underload generator.

[0096] By comparing the values ​​of all underload values, the smallest underload value is obtained, and the underload generator corresponding to this underload value is the optimal underload generator.

[0097] When the number of underload values ​​is greater than 1, it indicates that there are multiple possibilities for parallel connection. In order to leave a larger single compensation amount for subsequent compensation, it is necessary to connect the generator 4 that meets the requirements and has the smallest underload value in parallel, and compare all the underload values ​​to find the optimal underload generator.

[0098] Step 11512: Connect the optimal underload generator and the overload generator in parallel using the parallel controller to obtain the optimal overload compensation circuit.

[0099] The optimal overload compensation circuit refers to the compensation circuit formed by connecting the optimal underload generator and the overload generator in parallel. The parallel connection method was introduced in step 115.

[0100] This also includes: Step 12: Obtain the power generation status of generator 4.

[0101] The power generation status refers to the operating status of generator 4. The real-time power of generator 4 is read directly. If the real-time power is 0, the power generation status is "shutdown"; if the real-time power is not 0, the power generation status is "operation".

[0102] Step 120: When the power generation is in the preset operating condition, no additional operation is required.

[0103] Operating status refers to the state in which generator 4 is providing power to the electrical appliances connected to it.

[0104] When the power generation is in the preset operating condition, it means that generator 4 is working normally and no additional operation is required.

[0105] Step 121: When the power generation status is the preset shutdown status, obtain the generator 4 whose power generation status is shutdown status, and define the generator 4 as the shutdown generator.

[0106] A shutdown condition refers to the situation where generator 4 stops generating electricity because it has run out of fuel. Generator 4, whose real-time power is 0, can be found directly in the system; this generator 4 is the shutdown generator.

[0107] When the power generation status is the preset shutdown status, it means that part of the generator 4 has stopped supplying power. It is necessary to transfer the electrical appliances connected to it to the other generators 4 to obtain the shutdown generator.

[0108] Step 122: Locate the electrical appliances connected to the generator that is out of service and define them as out-of-service electrical appliances.

[0109] In step 8, the electrical appliance corresponding to the generator output interface of the generator that is shut down is retrieved from the mapping relationship. This electrical appliance is the shutdown electrical appliance.

[0110] Step 123: Find the real-time power of the shut-down electrical appliance under normal operating conditions based on the shut-down electrical appliance, and define the real-time power as the load value.

[0111] To find the real-time power of a generator that is normally operating when it is shut down, retrieve the percentage of each shut-down electrical appliance in the real-time power of the generator. The real-time power corresponding to this percentage is the load value.

[0112] Step 1230: When the load value is not greater than the underload value, find the underload value that is not less than the load value based on the underload value and the load value, and define the generator 4 corresponding to the underload value as the shutdown underload generator.

[0113] By directly comparing the load value and the underload value, the underload value that is not less than the load value is selected. The generator 4 corresponding to this underload value is the generator that is out of service and underloaded.

[0114] When the load value is not greater than the underload value, it indicates that there is a single underloaded generator that can support all the shut-down electrical appliances. The shut-down underloaded generator can be found based on the underload value and the load value.

[0115] Step 1231: Connect the power supply of the shutdown electrical appliances to the generator power output interface of the shutdown and underload generator through the multi-circuit power supply switching module.

[0116] According to the pre-mapping relationship, the multi-circuit power supply switching module first disconnects the power supply circuit between the stopped electrical appliance and the stopped generator, and then switches the power supply line of the stopped electrical appliance to the power output interface corresponding to the stopped underload generator, completing the electrical connection and load transfer, so that the stopped electrical appliance can continue to be powered by the stopped underload generator.

[0117] Step 1232: When the load value is greater than the underload value, output a preset stop signal.

[0118] The shutdown signal refers to the red flashing light used to remind staff that generator 4 has stopped. A high-level drive signal is output to the preset audible and visual alarm device through the I / O port, triggering the alarm device to emit a red flashing light to remind staff that generator 4 has stopped.

[0119] When the load value exceeds the underload value, it indicates that the power outage problem cannot be solved by the system automatically switching the electrical appliances. Manual intervention is required to output a preset shutdown signal.

[0120] This also includes: Step 1136: Calculate the number of overload values ​​based on the overload values.

[0121] The number of overload values ​​refers to the total number of overload values. It involves counting the number of times each overload value occurs; this count is the total number of overload values.

[0122] Step 11360: If the number of overload values ​​is not greater than 1, no additional steps are performed.

[0123] If the number of overload values ​​is not greater than 1, it means that there is only 1 overloaded generator, and the priority of processing does not need to be considered, and no additional steps are executed.

[0124] Step 11361: If the number of overload values ​​is greater than 1, find the corresponding number of appliances of the same type according to the appliance type, and define the number of appliances of the same type as the number of appliances.

[0125] Simply input the appliance type into the system to count the number of times the same appliance type appears. This count represents the quantity of appliances of the same type.

[0126] If the number of overload values ​​is greater than 1, it indicates that there are multiple overloaded generators. It is necessary to set the processing priority of overloaded generators and find the number of appliances of the same type according to the type of appliance.

[0127] Step 11362: Find the corresponding appliance type weight value based on the appliance type.

[0128] Appliance type weight values ​​are numerical values ​​that characterize the importance of an appliance. Entering an appliance type into a pre-defined appliance type weight value database retrieves its corresponding weight value. Based on appliance priority, a weight value is assigned to each appliance type. Weight values ​​can be normalized by the inverse of the priority value or determined by experts based on practical experience. For example, lighting equipment has a weight value of 10, water pumps have a weight value of 6, and cutting equipment has a weight value of 3. Higher weight values ​​indicate higher overall importance for that type of appliance. Appliance type identifiers are associated and stored with their corresponding appliance type weight values ​​to form an appliance type weight value database.

[0129] Step 11363: Calculate the generator weight value based on the number of appliances of the same type and the weight value of the appliance type.

[0130] The generator weight value is a comprehensive numerical value that characterizes the importance of the load driven by generator 4. It is calculated by multiplying the number of different appliance types by their corresponding weight values, and then summing all the multiplication results. For example, if there are 3 lighting devices with a weight value of 10, and 2 water pumps with a weight value of 6, the final generator 4 weight value is 42.

[0131] Step 11364: Compare all generator weight values ​​to find the generator weight value with the largest value, and define the generator weight value with the largest value as the priority generator weight value.

[0132] The generator with the highest weight value is selected by comparing all generator weight values. This generator weight value is the priority generator weight value.

[0133] Step 11365: Find the overload generator corresponding to the priority generator weight value based on the priority generator weight value, define the overload generator corresponding to the priority generator weight value as the priority overload generator, and output the preset priority parallel signal.

[0134] By directly inputting the priority generator weight value into the system, the corresponding overload generator can be retrieved; this overload generator is the priority overload generator. The priority parallel connection signal refers to the instruction to prioritize parallel compensation for a particular generator. Output is completed by issuing an electrical signal through a preset signal output module; all subsequent outputs are achieved through this method.

[0135] This also includes: Step 1137: Calculate the number of priority generator weight values ​​based on the priority generator weight values.

[0136] You can directly enter the priority generator weight value into the system to retrieve the number of priority generator weight values. This number is the total number of priority generator weight values.

[0137] Step 11370: If the number of priority generator weight values ​​is not greater than 1, no additional steps are performed.

[0138] If the number of priority generator weight values ​​is not greater than 1, it means that there is only one priority overload generator, and no additional steps are performed.

[0139] Step 11371: If the number of priority generator weight values ​​is greater than 1, find the appliance type of the appliance connected to the priority overload generator according to the priority overload generator, and define the appliance type of the appliance connected to the priority overload generator as the priority appliance type.

[0140] The method for finding this information was described in step 2.

[0141] If the number of priority generator weight values ​​is greater than 1, it means that there are multiple priority overload generators with the same weight value. It is necessary to further determine the processing order of the overload generators and find the priority electrical appliance type based on the priority overload generators.

[0142] Step 11372: Find the priority of the appliance corresponding to the priority appliance type based on the priority appliance type, and define the priority of the appliance as the priority appliance priority.

[0143] The method for finding this information was described in step 116.

[0144] Step 11373: Compare the priorities of all priority appliances to obtain the priority of the highest priority appliance, and define the priority appliance type corresponding to the highest priority appliance type as the highest priority appliance type.

[0145] The highest priority appliance can be obtained by directly filtering from all priority appliance priorities. Alternatively, the highest priority appliance can be obtained by inputting all priority appliance priorities into the appliance priority database and then retrieving the corresponding appliance type. This appliance type is the highest priority appliance type.

[0146] Step 11374: Based on the highest priority appliance type, find the priority overload generator connected to the appliance of the highest priority appliance type, determine the priority overload generator connected to the appliance of the highest priority appliance type, and output the preset priority update command.

[0147] The priority update command is an instruction that updates the definition of a priority overload generator. It directly filters out the priority overload generators from all priority overload generators that have been connected to the highest priority appliance type.

[0148] This also includes: Step 1138: Find the number of overloaded generators connected to the highest priority appliance type based on the highest priority appliance type, and define the number of overloaded generators connected to the highest priority appliance type as the highest priority access quantity.

[0149] The number of priority overload generators for the highest priority type of electrical appliance can be directly retrieved from the system; this number is the highest priority access quantity.

[0150] Step 11380: If the highest priority access quantity is not greater than 1, no additional steps are executed.

[0151] If the maximum number of priority accesses is not greater than 1, it means that there is only one priority overload generator that meets the conditions, and no additional steps will be performed.

[0152] Step 11381: If the highest priority access quantity is greater than 1, find the highest priority access quantity based on the highest priority appliance type.

[0153] The number of appliances connected to the highest priority appliance type is directly counted among the eligible priority overload generators. This number is the number of appliances connected to the highest priority appliance.

[0154] If the maximum number of priority accesses is greater than 1, it means that there is more than one priority overload generator that meets the conditions. The processing order needs to be further determined, and the number of priority accesses can be found based on the type of the highest priority appliance.

[0155] Step 11382: Compare the number of all highest priority appliances connected to obtain the highest priority appliance connected with the largest value, determine the priority overload generator with the most connected appliances of the highest priority appliance type, and output the priority update command.

[0156] The maximum number of highest priority appliances can be obtained by directly comparing the number of all highest priority appliances connected.

[0157] This also includes: Step 1152: After obtaining the overload compensation circuit in parallel, locate the parallel generator based on the overload compensation circuit.

[0158] A parallel generator refers to generator 4 that is in an overload compensation circuit. Simply locate the generator 4 that makes up the overload compensation circuit; this generator 4 is the parallel generator.

[0159] After obtaining the overload compensation circuit in parallel, it may be necessary to balance the power of the parallel generator 4 to protect generator 4. The parallel generator can be found based on the overload compensation circuit.

[0160] Step 1153: Find the real-time parallel power based on the parallel generators.

[0161] Parallel real-time power refers to the instantaneous electrical power that the parallel generator is currently outputting. Parallel real-time power = real-time voltage × real-time current; the required data can be read directly from the system.

[0162] Step 1154: Calculate the parallel load rate based on the parallel real-time power and rated power.

[0163] The parallel load factor refers to the ratio of the real-time power of parallel generators to their rated power. The parallel load factor is obtained by dividing the real-time parallel power by the rated power.

[0164] Step 1155: Compare all parallel load rates to obtain the maximum and minimum parallel load rates.

[0165] The maximum and minimum parallel load rates are obtained by directly comparing all parallel load rates in the system. The maximum parallel load rate is the highest parallel load rate, and the minimum parallel load rate is the lowest parallel load rate.

[0166] Step 1156: Calculate the difference between the maximum parallel load rate and the minimum parallel load rate based on the maximum parallel load rate and define this difference as the load deviation.

[0167] The load deviation is equal to the maximum parallel load rate minus the minimum parallel load rate.

[0168] Step 11560: If the load deviation is not greater than the preset correction threshold, no additional steps are performed.

[0169] The correction threshold is the dividing line for determining whether to initiate load balancing adjustments. Stable operating data of multiple parallel generators under 20 sets of different load conditions were collected, and the maximum real-time load deviation of the parallel units under each set of conditions was calculated. 0.8 times the maximum value of all these values ​​was taken as the correction threshold.

[0170] When the load deviation is not greater than the preset correction threshold, it means that there is no need to start load balancing adjustment and no additional steps are required.

[0171] Step 11561: When the load deviation is greater than the correction threshold, find the electrical appliances connected to the parallel generator corresponding to the maximum parallel load rate based on the maximum parallel load rate.

[0172] When the load deviation is greater than the correction threshold, it indicates that load balancing adjustment needs to be initiated. The electrical appliances connected to the parallel generator are found based on the maximum parallel load rate.

[0173] Step 11562: Retrieve the transferable electrical appliances based on the load deviation.

[0174] A transferable appliance refers to an appliance that can be transferred from generator 4, which corresponds to the maximum parallel load rate, to generator 4, which corresponds to the minimum load rate. The power required for load balancing is calculated based on the load deviation. Among the appliances connected to the parallel generator corresponding to the maximum parallel load rate, the appliance whose load value is closest to the required power for load balancing is the transferable appliance. For example, if the required power for load balancing is 5, and the load values ​​of the appliances connected to the parallel generator corresponding to the maximum parallel load rate are 2, 3, and 6, then the appliances with load values ​​of 2 and 3 are transferable appliances.

[0175] Step 11563: Connect the transferable electrical appliances to the parallel generator corresponding to the minimum parallel load rate through the multi-circuit power supply switching module.

[0176] The access method here was described in steps 1231.

[0177] Step 1157: Repeat steps 1152 to 11563 until the load deviation is no greater than the correction threshold.

[0178] If the load deviation is greater than the correction threshold, it indicates that there is an uneven power distribution among the parallel generators. For electrical safety, steps 1152 to 11563 need to be repeated until the load deviation is no greater than the correction threshold.

[0179] Based on the same inventive concept, embodiments of the present invention provide a power generation control device based on the power of an engineering emergency rescue vehicle itself.

[0180] Reference Figure 2 A power generation control device based on the power of the engineering rescue vehicle itself includes an engine unit 1, a power take-off unit 2, a power take-off shaft 3, a generator 4, and an electronic control unit 5.

[0181] Reference Figure 2 Engine set 1 provides power to the device. Power take-off (PTO) 2 is mounted on engine set 1. Power take-off shaft 3 is connected to the end of PTO 2 furthest from engine set 1. Generator 4 is connected to the end of power take-off shaft 3 furthest from PTO 2, and is used to convert the power of engine set 1 into electricity. Electronic control unit 5 is connected to generator 4 and is used to regulate generator 4.

[0182] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional modules is used as an example. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device, and unit described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0183] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A method for controlling power generation based on self-power of an engineering rescue vehicle, characterized by, include: Step 1: Start the preset generator (4) and obtain the current parameters of the electrical appliances collected by the preset current acquisition module; Step 2: Search for the corresponding appliance type in the preset appliance database based on the current parameters; Step 3: Find the standard current corresponding to the type of electrical appliance; Step 4: Obtain the emergency vehicle signal collected by the preset signal receiving device; Step 5: Count the number of rescue vehicles based on their signals; Step 6: Count the number of appliance types based on the appliance type; Step 7: Determine the connection order based on the number and type of electrical appliances; Step 8: Connect the electrical appliances to the generator (4) power output interface in the order of access through the preset multi-circuit power supply switching module to form a mapping relationship, and receive the access completion signal fed back by the generator (4); Step 9: When the access completion signal is received, the corresponding standard current is output to the electrical appliance through the current regulating device according to the mapping relationship.

2. The method of claim 1, wherein the method is characterized by: When the generator (4) sends a signal indicating that the connection is complete, the method of outputting a standard current to the electrical appliance through the current regulating device includes: Step 10: Obtain the real-time power and rated power of the generator (4); Step 11: Calculate the difference between the real-time power and the rated power based on the real-time power and the rated power; Step 110: When the difference is greater than 0, define the difference as the overload value; Step 111: When the difference is less than 0, define the difference as the underload value; Step 112: If the overload value does not exist, do not execute the subsequent steps; Step 113: If both overload and underload values ​​exist, compare all underload values ​​with overload values ​​to obtain an underload value that is not less than the overload value, and define the generator (4) corresponding to the underload value as an underload generator. Step 114: Find the generator (4) corresponding to the overload value based on the overload value, and define the generator (4) as an overload generator; Step 115: Connect the underloaded generator and the overloaded generator in parallel using a preset parallel controller to obtain an overload compensation circuit; Step 116: If an overload value exists but an underload value does not exist, the priority of the appliance connected to the overload generator is found in the preset appliance priority database according to the overload generator, and the priority of the appliance is defined as the overload appliance priority. Step 117: Disconnect the power supply to overloaded appliances in order of priority from low to high until the real-time power does not exceed the rated power.

3. The power generation control method based on the self-power of an engineering emergency rescue vehicle according to claim 2, characterized in that, If both overload and underload values ​​exist simultaneously, the method of connecting the underloaded generator and the overloaded generator in parallel through a preset parallel controller to obtain an overload compensation circuit includes: Step 1130: When the underload value is not less than the overload value, execute steps 114 and 115; Step 1131: When the underload value is less than the overload value, a combined underload value is obtained by combining the underload values. The combined underload value is the underload value obtained by adding multiple underload values. Step 1132: If the combined underload value is not less than the overload value, find the generator (4) corresponding to the underload value contained in the combined underload value according to the combined underload value, and define the generator (4) as the combined underload generator; Step 1133: Connect the combined underload generator and the overload generator in parallel using the parallel controller to obtain a combined overload compensation circuit; Step 1134: After combining, mark the corresponding underload value as occupied; Step 1135: If the combined underload value is less than the overload value, proceed to steps 116 and 117.

4. The power generation control method based on the self-power of an engineering emergency rescue vehicle according to claim 2, characterized in that, Methods for obtaining an overload compensation circuit by connecting underloaded and overloaded generators in parallel using a preset parallel controller include: Step 1150: Find the compliant underload value that is not less than the overload value based on the underload value, and define the underload generator corresponding to the compliant underload value as the compliant underload generator; Step 1151: Calculate the number of loads that meet the load requirements based on the load requirements; Step 11510: When the number of compliant underload values ​​is no greater than 1, the compliant underload generator and the overload generator are connected in parallel through the parallel controller to obtain an overload compensation circuit; Step 11511: When the number of qualified underload values ​​is greater than 1, compare all qualified underload values ​​to find the minimum underload value, and define the qualified underload generator corresponding to this underload value as the optimal underload generator. Step 11512: Connect the optimal underload generator and the overload generator in parallel using the parallel controller to obtain the optimal overload compensation circuit.

5. The power generation control method based on the self-power of an engineering emergency rescue vehicle according to claim 2, characterized in that, Also includes: Step 12: Obtain the power generation status of generator (4); Step 120: When the power generation is in the preset operating condition, no additional operation is required; Step 121: When the power generation status is the preset shutdown status, obtain the generator (4) whose power generation status is the shutdown status, and define the generator (4) as the shutdown generator; Step 122: Locate the electrical appliances connected to the generator that is out of service based on the generator being out of service, and define the electrical appliances as out-of-service electrical appliances; Step 123: Find the real-time power of the electrical appliance under normal operating conditions based on the electrical appliance that is shut down, and define the real-time power as the load value; Step 1230: When the load value is not greater than the underload value, find the underload value that is not less than the load value based on the underload value and the load value, and define the generator (4) corresponding to the underload value as the shutdown underload generator. Step 1231: Connect the power supply of the shutdown electrical appliances to the generator power output interface of the shutdown and underload generator through the multi-circuit power supply switching module; Step 1232: When the load value is greater than the underload value, output a preset stop signal.

6. The power generation control method based on the self-power of an engineering emergency rescue vehicle according to claim 3, characterized in that, Also includes: Step 1136: Calculate the number of overload values ​​based on the overload values; Step 11360: If the number of overload values ​​is not greater than 1, no additional steps are performed; Step 11361: If the number of overload values ​​is greater than 1, find the corresponding number of appliances of the same type according to the appliance type, and define the number of appliances of the same type as the number of appliances. Step 11362: Find the corresponding appliance type weight value based on the appliance type; Step 11363: Calculate the generator (4) weight value based on the number of appliances of the same type and the weight value of the appliance type; Step 11364: Compare all generator weight values ​​to obtain the generator weight value with the largest value, and define the generator weight value with the largest value as the priority generator weight value; Step 11365: Find the overload generator corresponding to the priority generator weight value based on the priority generator weight value, define the overload generator corresponding to the priority generator weight value as the priority overload generator, and output the preset priority parallel signal.

7. The power generation control method based on the self-power of an engineering emergency rescue vehicle according to claim 6, characterized in that, The method for finding the overload generator corresponding to the priority generator weight value based on the priority generator weight value and outputting a preset priority parallel signal includes: Step 1137: Calculate the number of priority generator weight values ​​based on the priority generator weight values; Step 11370: If the number of priority generator weight values ​​is not greater than 1, no additional steps are performed; Step 11371: If the number of priority generator weight values ​​is greater than 1, find the appliance type of the appliance connected to the priority overload generator according to the priority overload generator, and define the appliance type of the appliance connected to the priority overload generator as the priority appliance type. Step 11372: Find the priority of the appliance corresponding to the priority appliance type based on the priority appliance type, and define the priority of the appliance as the priority appliance priority; Step 11373: Compare the priorities of all priority appliances to obtain the priority of the highest priority appliance, and define the priority appliance type corresponding to the highest priority appliance type as the highest priority appliance type; Step 11374: Based on the highest priority appliance type, find the priority overload generator connected to the appliance of the highest priority appliance type, determine the priority overload generator connected to the appliance of the highest priority appliance type, and output the preset priority update command.

8. The power generation control method based on the self-power of an engineering emergency rescue vehicle according to claim 7, characterized in that, The methods for identifying the overloaded generator connected to the highest priority appliance type based on the highest priority appliance type and outputting a priority parallel connection signal include: Step 1138: Find the number of overloaded generators connected to the highest priority appliance type based on the highest priority appliance type, and define the number of overloaded generators connected to the highest priority appliance type as the highest priority access quantity. Step 11380: If the highest priority access quantity is not greater than 1, no additional steps are executed; Step 11381: If the highest priority access quantity is greater than 1, find the highest priority access quantity based on the highest priority appliance type; Step 11382: Compare the number of all highest priority appliances connected to obtain the highest priority appliance connected with the largest value, determine the priority overload generator with the most connected appliances of the highest priority appliance type, and output the priority update command.

9. A power generation control method based on the self-power of an engineering emergency rescue vehicle according to claim 4, characterized in that, Also includes: Step 1152: After obtaining the overload compensation circuit in parallel, locate the parallel generator based on the overload compensation circuit; Step 1153: Find the real-time parallel power based on the parallel generators; Step 1154: Calculate the parallel load rate based on the real-time parallel power and rated power; Step 1155: Compare all parallel load rates to obtain the maximum and minimum parallel load rates; Step 1156: Calculate the difference between the maximum parallel load rate and the minimum parallel load rate based on the maximum parallel load rate and define this difference as the load deviation; Step 11560: If the load deviation is not greater than the preset correction threshold, no additional steps are performed; Step 11561: When the load deviation is greater than the correction threshold, find the electrical appliances connected to the parallel generator corresponding to the maximum parallel load rate according to the maximum parallel load rate; Step 11562: Retrieve the transferable electrical appliances based on the load deviation; Step 11563: Connect the transferable electrical appliances to the parallel generator corresponding to the minimum parallel load rate through the multi-circuit power supply switching module; Step 1157: Repeat steps 1152 to 11563 until the load deviation is no greater than the correction threshold.

10. A power generation control device based on the self-power of an engineering emergency rescue vehicle, applied to the power generation control method based on the self-power of an engineering emergency rescue vehicle as described in any one of claims 1 to 9, characterized in that: It includes an engine set (1) to provide power to the device; a power take-off (2) located on the engine set (1) to extract power from the engine set (1); a power take-off shaft (3) connected to the end of the power take-off (2) away from the engine set (1); a generator (4) connected to the end of the power take-off shaft (3) away from the power take-off (2) to convert the power of the engine set (1) into electricity; and an electronic control unit (5) connected to the generator (4) to regulate the generator (4).

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