Internal combustion locomotive temperature control method and device

Abstract

The invention provides an internal combustion locomotive temperature control method and device, and relates to the technical field of internal combustion locomotives, based on the internal combustion locomotive temperature control device, the internal combustion locomotive temperature control device comprises a temperature controller and a water temperature sensor assembly, and the temperature controller comprises a man-machine interaction panel, a switching value output module and a data processing module; the internal combustion locomotive temperature control method comprises the steps that a water temperature sensor assembly obtains a target temperature detection value by detecting the water temperature of a water pipe of an internal combustion locomotive and sends the target temperature detection value to a data processing module; the man-machine interaction panel obtains a temperature preset value and sends the temperature preset value to the data processing module; the data processing module obtains a relay control instruction by comparing a target temperature detection value with a temperature preset value, and sends the relay control instruction to the switching value output module; and the switching value output module obtains a temperature control instruction through the relay control instruction. The temperature control precision of the diesel locomotive is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of diesel locomotives, and in particular to a temperature control method and device for a diesel locomotive. Background Art

[0002] A diesel locomotive is a locomotive powered by an internal combustion engine (usually a diesel engine), and is usually used for shunting and small operations in railways, metallurgy, petrochemicals, ports, and local railways. Temperature control of diesel locomotives can ensure the safe operation of the diesel engine and improve the reliability and maintenance convenience of the entire system.

[0003] At present, the temperature control of diesel locomotives mainly uses pressure-type temperature relays to control the main temperature points. The pressure-type temperature relays use the principle of thermal expansion and contraction. When the main temperature points are reached, the push rod controls the output of the mechanical microswitch. The mechanical microswitch contact device is unreliable, the temperature accuracy is low, and the measurement error is large. Summary of the invention

[0004] The problem solved by the invention is how to improve the temperature control accuracy of a diesel locomotive.

[0005] In order to solve the above problems, the present invention provides a method and device for controlling the temperature of a diesel locomotive.

[0006] In a first aspect, the present invention provides a method for controlling the temperature of a diesel locomotive, based on a temperature control device for a diesel locomotive, wherein the temperature control device for a diesel locomotive comprises a temperature controller and a water temperature sensor assembly, wherein the temperature controller comprises a human-computer interaction panel, a switch output module and a data processing module, and the method for controlling the temperature of a diesel locomotive comprises:

[0007] The water temperature sensor component obtains a target temperature detection value by detecting the water temperature of the water pipe of the diesel locomotive, and sends the target temperature detection value to the data processing module;

[0008] The human-computer interaction panel obtains a preset temperature value, and sends the preset temperature value to the data processing module;

[0009] The data processing module obtains a relay control instruction by comparing the target temperature detection value with the temperature preset value, and sends the relay control instruction to the switch output module;

[0010] The switch output module obtains a temperature control instruction through the relay control instruction, and the temperature control instruction is used to control the temperature of the diesel locomotive.

[0011] Optionally, the diesel locomotive temperature control device further includes a PLC module, the temperature controller further includes a first water temperature relay, a second water temperature relay, a third water temperature relay and a fourth water temperature relay, the first water temperature relay includes a first output interface, the second water temperature relay includes a second output interface, the third water temperature relay includes a third output interface, the fourth water temperature relay includes a fourth output interface, the PLC module is respectively connected to the first output interface, the second output interface, the third output interface and the fourth output interface; the temperature preset value includes a first threshold value, a second threshold value, a third threshold value and a fourth threshold value, the relay control instruction includes a first control instruction, a second control instruction, a third control instruction, a fourth control instruction and a fifth control instruction, and the relay control instruction is obtained by comparing the target temperature detection value with the temperature preset value, including:

[0012] When the target temperature detection value is less than the first threshold value, the first control instruction is obtained, wherein the first control instruction is used to indicate control to disconnect the first water temperature relay, the second water temperature relay, the third water temperature relay and the fourth water temperature relay;

[0013] When the target temperature detection value is greater than the first threshold value and less than or equal to the second threshold value, the second control instruction is obtained, wherein the second control instruction is used to indicate controlling the closing of the first water temperature relay, and the second threshold value is greater than the first threshold value;

[0014] When the target temperature detection value is greater than the second threshold value and less than or equal to the third threshold value, the third control instruction is obtained, wherein the third control instruction is used to indicate control to close the first water temperature relay and the second water temperature relay, and the third threshold value is greater than the second threshold value;

[0015] When the target temperature detection value is greater than the third threshold value and less than or equal to the fourth threshold value, the fourth control instruction is obtained, and the fourth control instruction is used to indicate control to close the first water temperature relay, the second water temperature relay and the third water temperature relay, wherein the fourth threshold value is greater than the third threshold value;

[0016] When the target temperature detection value is greater than the fourth threshold value, the fifth control instruction is obtained, and the fifth control instruction is used to indicate the control of closing the first water temperature relay, the second water temperature relay, the third water temperature relay and the fourth water temperature relay.

[0017] Optionally, obtaining the temperature control instruction through the relay control instruction includes:

[0018] Control the first water temperature relay, the second water temperature relay, the third water temperature relay and the fourth water temperature relay according to the first control instruction, the second control instruction, the third control instruction, the fourth control instruction and the fifth control instruction to obtain relay switching conditions;

[0019] Obtaining the temperature control instruction according to the relay switch condition;

[0020] After obtaining the temperature control instruction through the relay control instruction, the method further includes:

[0021] The temperature control instruction is sent to the PLC module through the first output interface, the second output interface, the third output interface and the fourth output interface, wherein the PLC module is used to execute the temperature control instruction.

[0022] Optionally, the temperature control instruction includes a diesel engine loading protection control instruction, a cooling fan control instruction, a diesel engine cooling water temperature high temperature alarm control instruction and a diesel engine load unloading control instruction, and the temperature control instruction is obtained through the relay switch status, including:

[0023] When the first water temperature relay is closed, the diesel engine loading protection control instruction is obtained;

[0024] When the first water temperature relay and the second water temperature relay are closed, the cooling fan control instruction is obtained;

[0025] When the first water temperature relay, the second water temperature relay and the third water temperature relay are closed, a high temperature alarm control instruction for the cooling water temperature of the diesel engine is obtained;

[0026] When the first water temperature relay, the second water temperature relay, the third water temperature relay and the fourth water temperature relay are closed, the diesel engine load unloading control instruction is obtained.

[0027] Optionally, the water temperature sensor assembly includes a first water temperature sensor, a second water temperature sensor, a third water temperature sensor and a fourth water temperature sensor sequentially installed on the water pipe of the diesel locomotive, the first water temperature sensor is used to detect the water temperature in a first temperature range, the second water temperature sensor is used to detect the water temperature in a second temperature range, the third water temperature sensor is used to detect the water temperature in a third temperature range, and the fourth water temperature sensor is used to detect the water temperature in a fourth temperature range; the method of obtaining the target temperature detection value by detecting the water temperature of the water pipe of the diesel locomotive includes:

[0028] The water temperature is detected by the first water temperature sensor, the second water temperature sensor, the third water temperature sensor and the fourth water temperature sensor to obtain an original temperature detection value;

[0029] When the original temperature detection value is within the first temperature range, obtaining the target temperature detection value through the first water temperature sensor;

[0030] When the original temperature detection value is within the second temperature interval, the target temperature detection value is obtained through the second water temperature sensor, and the minimum temperature value of the second temperature interval is greater than the maximum temperature value of the first temperature interval;

[0031] When the original temperature detection value is within the third temperature interval, the target temperature detection value is obtained by the third water temperature sensor, and the minimum temperature value of the third temperature interval is greater than the maximum temperature value of the second temperature interval;

[0032] When the original temperature detection value is in the fourth temperature interval, the target temperature detection value is obtained by the fourth water temperature sensor, and the minimum temperature value of the fourth temperature interval is greater than the maximum temperature value of the third temperature interval.

[0033] Optionally, the human-computer interaction panel includes a touch screen; after obtaining the preset temperature value and sending the preset temperature value to the data processing module, the method further includes:

[0034] The target temperature detection value sent by the data processing module is received according to a preset interaction interval time, and the target temperature detection value is displayed through the touch screen.

[0035] Optionally, the acquiring of the preset temperature value and sending the preset temperature value to the data processing module further includes:

[0036] Acquiring the preset temperature value through the touch screen;

[0037] The preset temperature value is sent to the data processing module according to the preset interaction interval time.

[0038] Optionally, obtaining a relay control instruction by comparing the target temperature detection value with the temperature preset value includes:

[0039] Performing analog-to-digital conversion on the target temperature detection value to obtain the target temperature detection value after analog-to-digital conversion;

[0040] The relay control instruction is obtained by comparing the target temperature detection value after analog-to-digital conversion with the temperature preset value.

[0041] Optionally, obtaining a target temperature detection value by detecting the water temperature of a water pipe of a diesel locomotive, and sending the target temperature detection value to the data processing module comprises:

[0042] Detecting the water temperature of the water pipe of the internal combustion engine vehicle according to a preset detection interval to obtain the target temperature detection value;

[0043] The target temperature detection value is sent to the data processing module according to the preset detection interval.

[0044] In a second aspect, the present invention provides a temperature control device for a diesel locomotive, which implements the temperature control method for a diesel locomotive, wherein the temperature control device for a diesel locomotive comprises a temperature controller and a water temperature sensor assembly, wherein the temperature controller comprises a human-computer interaction panel, a switch output module and a data processing module;

[0045] The water temperature sensor assembly is used to obtain a target temperature detection value by detecting the water temperature of the water pipe of the diesel locomotive, and send the target temperature detection value to the data processing module;

[0046] The human-computer interaction panel is used to obtain a preset temperature value and send the preset temperature value to the data processing module;

[0047] The data processing module is used to obtain a relay control instruction by comparing the target temperature detection value with the temperature preset value, and send the relay control instruction to the switch output module;

[0048] The switch output module is used to obtain a temperature control instruction through the relay control instruction, and the temperature control instruction is used to control the temperature of the diesel locomotive.

[0049] The beneficial effects of a diesel locomotive temperature control method and device of the present invention are as follows: the water temperature sensor component obtains a target temperature detection value by detecting the water temperature of the diesel locomotive water pipe, can detect the water temperature of the cooling system in real time, and send the accurate target temperature detection value to the data processing module. The human-computer interaction panel allows the temperature preset value to be flexibly set according to different operating conditions, adapts to various working conditions, improves the applicability and flexibility of the system, and sends the temperature preset value to the processing module. The data processing module compares the target temperature detection value and the temperature preset value to obtain a relay control instruction, and the switch output module performs relay control through the relay control instruction, thereby obtaining a temperature control instruction, taking temperature control to prevent equipment damage caused by high temperature, and effectively improving the temperature control accuracy of the diesel locomotive. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 A schematic flow chart of a method for controlling temperature of a diesel locomotive according to an embodiment of the present invention;

[0051] Figure 2 A schematic diagram of a water temperature sensor assembly according to an embodiment of the present invention;

[0052] Figure 3 is a schematic diagram of a temperature controller according to an embodiment of the present invention;

[0053] Figure 4 Schematic diagram of another temperature controller according to an embodiment of the present invention. DETAILED DESCRIPTION

[0054] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be interpreted as being limited to the embodiments described herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not intended to limit the scope of protection of the present invention.

[0055] It should be understood that the various steps described in the method embodiments of the present invention may be performed in different orders and / or in parallel. In addition, the method embodiments may include additional steps and / or omit the steps shown. The scope of the present invention is not limited in this respect.

[0056] The term "including" and its variations used in this document are open inclusions, that is, "including but not limited to"; the term "based on" means "based at least in part on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments"; the term "optionally" means "optional embodiments". The relevant definitions of other terms will be given in the following description. It should be noted that the concepts of "first", "second", etc. mentioned in the present invention are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0057] It should be noted that the modifications of "one" and "plurality" mentioned in the present invention are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0058] The names of the messages or information exchanged between multiple devices in the embodiments of the present invention are only used for illustrative purposes, and are not used to limit the scope of these messages or information.

[0059] In the related technology, the GK1c diesel locomotive is equipped with a 6240ZJ diesel engine, with a power of 1000kW, a total locomotive weight of 92t, a track gauge of 1435mm, axle type B-B, a length of 15.5m, and a maximum height of 4650mm from the rail surface. The maximum speed of the shunting condition is 35km / h, and the small operation condition is 75km / h. It is suitable for shunting and small operation operations in railways, metallurgy, petrochemicals, ports, and local railways. The water temperature control of this model adopts 4 switch quantities of WTYK-11 pressure temperature relay, which respectively controls the temperature points of 40℃ (diesel engine loading protection), 78℃ (cooling fan electronic control), 85℃ (diesel engine cooling water temperature high temperature alarm), and 90℃ (unit protection diesel engine unloading). The temperature sensing element uses the principle of thermal expansion and contraction to control the output of the mechanical micro switch with a push rod. The technology is backward, with low temperature accuracy and large measurement error. The mechanical micro switch contact device is unreliable and easily damaged during use, which brings many problems to the daily inspection and maintenance of the locomotive and also affects the normal utilization rate of the locomotive.

[0060] In view of the problems existing in the above-mentioned related technologies, this embodiment provides a method and device for controlling temperature of a diesel locomotive.

[0061] like Figure 1 As shown, an internal combustion engine temperature control method provided by an embodiment of the present invention is based on an internal combustion engine temperature control device, the internal combustion engine temperature control device includes a temperature controller and a water temperature sensor assembly, the temperature controller includes a human-computer interaction panel, a switch output module and a data processing module, and the internal combustion engine temperature control method includes:

[0062] Step 110, the water temperature sensor assembly obtains a target temperature detection value by detecting the water temperature of the water pipe of the diesel locomotive, and sends the target temperature detection value to the data processing module.

[0063] Specifically, the water pipe of a diesel locomotive is an important part of the cooling system. It is responsible for circulating the coolant between the engine and the radiator to maintain the appropriate temperature. The water temperature sensor assembly is installed on the water pipe of the diesel locomotive to detect the water temperature of the water pipe of the diesel locomotive to obtain the target temperature detection value. The water temperature sensor detects the water temperature of the diesel locomotive and then outputs a current value signal of 4-20ma. The various parts of the diesel locomotive temperature control device use RS485 data lines for communication. RS485 data lines are a standard widely used in industrial automation, building control and other multi-point communication scenarios for reliable data transmission over long distances and in electrical noise environments.

[0064] Step 120: the human-computer interaction panel obtains a preset temperature value, and sends the preset temperature value to the data processing module.

[0065] Specifically, the human-machine interface panel allows the operator to communicate with the control system. Through this panel, the operator can set and adjust various parameters, including temperature preset values, and send these settings to the data processing module.

[0066] Step 130: the data processing module obtains a relay control instruction by comparing the target temperature detection value with the temperature preset value, and sends the relay control instruction to the switch output module.

[0067] Specifically, the 4-20ma current value signal converted by the water temperature sensor is sent to the analog / digital conversion unit of the water temperature microcomputer controller. The digital signal converted by the analog / digital conversion unit is processed and calculated by the single-chip microcomputer in the water temperature microcomputer controller to control the operation of the relays of each temperature control point.

[0068] Step 140: the switch output module obtains a temperature control instruction through the relay control instruction, and the temperature control instruction is used to control the temperature of the diesel locomotive.

[0069] Specifically, the switch output module obtains the temperature control instruction through the relay control instruction, thereby performing diesel engine loading protection, cooling fan control, diesel engine cooling water temperature high temperature alarm, and diesel engine load unloading.

[0070] In this embodiment, the water temperature sensor component obtains the target temperature detection value by detecting the water temperature of the water pipe of the diesel locomotive, can detect the water temperature of the cooling system in real time, and send the accurate target temperature detection value to the data processing module. The human-computer interaction panel allows the temperature preset value to be flexibly set according to different operating conditions, adapts to various working conditions, improves the applicability and flexibility of the system, and sends the temperature preset value to the processing module. The data processing module compares the target temperature detection value and the temperature preset value to obtain a relay control instruction, and the switch output module performs relay control through the relay control instruction, thereby obtaining a temperature control instruction, taking temperature control to prevent equipment damage caused by high temperature, and effectively improving the temperature control accuracy of the diesel locomotive.

[0071] Optionally, the diesel locomotive temperature control device further includes a PLC module, the temperature controller further includes a first water temperature relay, a second water temperature relay, a third water temperature relay and a fourth water temperature relay, the first water temperature relay includes a first output interface, the second water temperature relay includes a second output interface, the third water temperature relay includes a third output interface, the fourth water temperature relay includes a fourth output interface, the PLC module is respectively connected to the first output interface, the second output interface, the third output interface and the fourth output interface; the temperature preset value includes a first threshold value, a second threshold value, a third threshold value and a fourth threshold value, the relay control instruction includes a first control instruction, a second control instruction, a third control instruction, a fourth control instruction and a fifth control instruction, and the relay control instruction is obtained by comparing the target temperature detection value with the temperature preset value, including:

[0072] When the target temperature detection value is less than the first threshold value, the first control instruction is obtained, wherein the first control instruction is used to indicate control to disconnect the first water temperature relay, the second water temperature relay, the third water temperature relay and the fourth water temperature relay;

[0073] When the target temperature detection value is greater than the first threshold value and less than or equal to the second threshold value, the second control instruction is obtained, wherein the second control instruction is used to indicate controlling the closing of the first water temperature relay, and the second threshold value is greater than the first threshold value;

[0074] When the target temperature detection value is greater than the second threshold value and less than or equal to the third threshold value, the third control instruction is obtained, wherein the third control instruction is used to indicate control to close the first water temperature relay and the second water temperature relay, and the third threshold value is greater than the second threshold value;

[0075] When the target temperature detection value is greater than the third threshold value and less than or equal to the fourth threshold value, the fourth control instruction is obtained, and the fourth control instruction is used to indicate control to close the first water temperature relay, the second water temperature relay and the third water temperature relay, wherein the fourth threshold value is greater than the third threshold value;

[0076] When the target temperature detection value is greater than the fourth threshold value, the fifth control instruction is obtained, and the fifth control instruction is used to indicate the control of closing the first water temperature relay, the second water temperature relay, the third water temperature relay and the fourth water temperature relay.

[0077] In some more specific embodiments, the temperature preset value includes a first threshold, a second threshold, a third threshold and a fourth threshold, which may be 40° C., 78° C., 85° C., and 90° C. The PLC (Programmable Logic Controller) module is one of the core components in the industrial automation system and is widely used in various control tasks.

[0078] Optionally, obtaining the temperature control instruction through the relay control instruction includes:

[0079] Control the first water temperature relay, the second water temperature relay, the third water temperature relay and the fourth water temperature relay according to the first control instruction, the second control instruction, the third control instruction, the fourth control instruction and the fifth control instruction to obtain relay switching conditions;

[0080] Obtaining the temperature control instruction according to the relay switch condition;

[0081] After obtaining the temperature control instruction through the relay control instruction, the method further includes:

[0082] The temperature control instruction is sent to the PLC module through the first output interface, the second output interface, the third output interface and the fourth output interface, wherein the PLC module is used to execute the temperature control instruction.

[0083] Optionally, the temperature control instruction includes a diesel engine loading protection control instruction, a cooling fan control instruction, a diesel engine cooling water temperature high temperature alarm control instruction and a diesel engine load unloading control instruction, and the temperature control instruction is obtained through the relay switch status, including:

[0084] When the first water temperature relay is closed, the diesel engine loading protection control instruction is obtained;

[0085] When the first water temperature relay and the second water temperature relay are closed, the cooling fan control instruction is obtained;

[0086] When the first water temperature relay, the second water temperature relay and the third water temperature relay are closed, a high temperature alarm control instruction for the cooling water temperature of the diesel engine is obtained;

[0087] When the first water temperature relay, the second water temperature relay, the third water temperature relay and the fourth water temperature relay are closed, the diesel engine load unloading control instruction is obtained.

[0088] Specifically, the diesel engine loading protection control instruction is used to indicate the triggering of the protection mechanism to limit the diesel engine from increasing the load. The cooling fan control instruction is used to indicate the control of the start / stop and speed adjustment of the cooling fan. The diesel engine cooling water temperature high temperature alarm control instruction is used to indicate the use of an indicator light, a buzzer or other alarm device to notify the operator. The diesel engine load unloading control instruction is used to indicate the execution of an unloading operation to reduce the diesel engine load and prevent further temperature rise. It may be necessary to gradually reduce the load to avoid sudden power outages causing shocks to the equipment. When the first water temperature relay, the second water temperature relay, the third water temperature relay and the fourth water temperature relay are disconnected, a display waiting to start control instruction is obtained, and the display normal control instruction is used to indicate that the current water temperature is low through a display screen or an indicator light.

[0089] Optionally, the water temperature sensor assembly includes a first water temperature sensor, a second water temperature sensor, a third water temperature sensor and a fourth water temperature sensor sequentially installed on the water pipe of the diesel locomotive, the first water temperature sensor is used to detect the water temperature in a first temperature range, the second water temperature sensor is used to detect the water temperature in a second temperature range, the third water temperature sensor is used to detect the water temperature in a third temperature range, and the fourth water temperature sensor is used to detect the water temperature in a fourth temperature range; the method of obtaining the target temperature detection value by detecting the water temperature of the water pipe of the diesel locomotive includes:

[0090] The water temperature is detected by the first water temperature sensor, the second water temperature sensor, the third water temperature sensor and the fourth water temperature sensor to obtain an original temperature detection value;

[0091] When the original temperature detection value is within the first temperature range, obtaining the target temperature detection value through the first water temperature sensor;

[0092] When the original temperature detection value is within the second temperature interval, the target temperature detection value is obtained through the second water temperature sensor, and the minimum temperature value of the second temperature interval is greater than the maximum temperature value of the first temperature interval;

[0093] When the original temperature detection value is within the third temperature interval, the target temperature detection value is obtained by the third water temperature sensor, and the minimum temperature value of the third temperature interval is greater than the maximum temperature value of the second temperature interval;

[0094] When the original temperature detection value is in the fourth temperature interval, the target temperature detection value is obtained by the fourth water temperature sensor, and the minimum temperature value of the fourth temperature interval is greater than the maximum temperature value of the third temperature interval.

[0095] In some more specific embodiments, in combination Figure 2As shown, four temperature intervals (0-40°C, 41-78°C, 79-85°C, 86-90°C) are detected respectively by means of a 40°C water temperature sensor, a 78°C water temperature sensor, an 85°C water temperature sensor and a 90°C water temperature sensor installed in sequence on the water pipe of the diesel locomotive. The water temperature sensor is installed on the water pipe of the diesel locomotive and sends the detection value to the data processing unit of the temperature controller.

[0096] In this optional embodiment, four water temperature sensors are used to detect the temperature of four intervals respectively, and each sensor focuses on a specific temperature range, reducing the error caused by wide range measurement. A higher resolution sensor can be used in a specific interval to obtain a more accurate temperature reading.

[0097] Optionally, the human-computer interaction panel includes a touch screen; after obtaining the preset temperature value and sending the preset temperature value to the data processing module, the method further includes:

[0098] The target temperature detection value sent by the data processing module is received according to a preset interaction interval time, and the target temperature detection value is displayed through the touch screen.

[0099] Specifically, the touch screen provides a user-friendly interface that allows the operator to set and adjust the temperature preset value through simple touch operations. When the operator enters or modifies the temperature preset value, the screen will immediately update the display to confirm the validity of the operation. The operator enters the required temperature preset value through the touch screen, such as 40℃, 78℃, 85℃ and 90℃. The system will verify the input value to ensure that it is within a reasonable range. Once confirmed, the operator clicks the "Save" button and the temperature preset value will be sent to the data processing module.

[0100] Optionally, the acquiring of the preset temperature value and sending the preset temperature value to the data processing module further includes:

[0101] Acquiring the preset temperature value through the touch screen;

[0102] The preset temperature value is sent to the data processing module according to the preset interaction interval time.

[0103] Specifically, the human-computer interaction panel initiates data query to the data processing module at an interval of 200ms, and displays the queried data on the human-computer interaction interface.

[0104] Optionally, obtaining a relay control instruction by comparing the target temperature detection value with the temperature preset value includes:

[0105] Performing analog-to-digital conversion on the target temperature detection value to obtain the target temperature detection value after analog-to-digital conversion;

[0106] The relay control instruction is obtained by comparing the target temperature detection value after analog-to-digital conversion with the temperature preset value.

[0107] Specifically, analog-to-digital conversion is the process of converting an analog signal into a digital signal. In a diesel locomotive temperature control system, analog-to-digital conversion is used to convert the analog output from the temperature sensor into data that can be understood and processed by a PLC or other digital controller.

[0108] Optionally, obtaining a target temperature detection value by detecting the water temperature of a water pipe of a diesel locomotive, and sending the target temperature detection value to the data processing module comprises:

[0109] Detecting the water temperature of the water pipe of the internal combustion engine vehicle according to a preset detection interval to obtain the target temperature detection value;

[0110] The target temperature detection value is sent to the data processing module according to the preset detection interval.

[0111] Specifically, the data processing module initiates a data query to the water temperature sensor component at an interval of 500ms. The water temperature sensor component obtains a target temperature detection value by detecting the water temperature of the water pipe of the diesel locomotive, and sends the target temperature detection value to the data processing module.

[0112] In some more specific embodiments, in combination Figure 3 , Figure 4 As shown, the temperature controller also includes a box, the human-machine interaction panel is arranged on the upper cover of the box, the switch output module is arranged on the side of the box, and the data processing module is arranged inside the box. The box also includes a temperature sensor input end, and the temperature sensor input end is connected to the water temperature sensor assembly. The switch output module includes a first water temperature relay, a second water temperature relay, a third water temperature relay and a fourth water temperature relay, the first water temperature relay includes a first switch output end, the second water temperature relay includes a second switch output end, the third water temperature relay includes a third switch output end, and the fourth water temperature relay includes a fourth switch output end, and the first switch output end, the second switch output end, the third switch output end and the fourth switch output end are used to connect to the PLC module. The temperature controller also includes a power interface opened on the side of the box, and the power interface includes DC24+ and DC24-. The working voltage of the temperature controller is DC24.

[0113] The present invention also provides a diesel locomotive temperature control device to implement the diesel locomotive temperature control method, the diesel locomotive temperature control device comprises a temperature controller and a water temperature sensor assembly, the temperature controller comprises a human-computer interaction panel, a switch output module and a data processing module;

[0114] The water temperature sensor assembly is used to obtain a target temperature detection value by detecting the water temperature of the water pipe of the diesel locomotive, and send the target temperature detection value to the data processing module;

[0115] The human-computer interaction panel is used to obtain a preset temperature value and send the preset temperature value to the data processing module;

[0116] The data processing module is used to obtain a relay control instruction by comparing the target temperature detection value with the temperature preset value, and send the relay control instruction to the switch output module;

[0117] The switch output module is used to obtain a temperature control instruction through the relay control instruction, and the temperature control instruction is used to control the temperature of the diesel locomotive.

[0118] The diesel locomotive temperature control device of this embodiment is used to implement the diesel locomotive temperature control method as described above. Its advantages over the prior art are the same as the advantages of the above diesel locomotive temperature control method over the prior art, and will not be repeated here.

[0119] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A method for controlling temperature of a diesel locomotive, characterized in that: Based on a diesel locomotive temperature control device, the diesel locomotive temperature control device includes a temperature controller and a water temperature sensor assembly, the temperature controller includes a human-computer interaction panel, a switch output module and a data processing module, and the diesel locomotive temperature control method includes: The water temperature sensor component obtains a target temperature detection value by detecting the water temperature of the water pipe of the diesel locomotive, and sends the target temperature detection value to the data processing module; The human-computer interaction panel obtains a preset temperature value, and sends the preset temperature value to the data processing module; The data processing module obtains a relay control instruction by comparing the target temperature detection value with the temperature preset value, and sends the relay control instruction to the switch output module; The switch output module obtains a temperature control instruction through the relay control instruction, and the temperature control instruction is used to control the temperature of the diesel locomotive.

2. The diesel locomotive temperature control method according to claim 1, characterized in that: The diesel locomotive temperature control device further includes a PLC module, the temperature controller further includes a first water temperature relay, a second water temperature relay, a third water temperature relay and a fourth water temperature relay, the first water temperature relay includes a first output interface, the second water temperature relay includes a second output interface, the third water temperature relay includes a third output interface, the fourth water temperature relay includes a fourth output interface, the PLC module is respectively connected to the first output interface, the second output interface, the third output interface and the fourth output interface; the temperature preset value includes a first threshold value, a second threshold value, a third threshold value and a fourth threshold value, the relay control instruction includes a first control instruction, a second control instruction, a third control instruction, a fourth control instruction and a fifth control instruction, the relay control instruction is obtained by comparing the target temperature detection value with the temperature preset value, including: When the target temperature detection value is less than the first threshold value, the first control instruction is obtained, wherein the first control instruction is used to indicate control to disconnect the first water temperature relay, the second water temperature relay, the third water temperature relay and the fourth water temperature relay; When the target temperature detection value is greater than the first threshold value and less than or equal to the second threshold value, the second control instruction is obtained, wherein the second control instruction is used to indicate controlling the closing of the first water temperature relay, and the second threshold value is greater than the first threshold value; When the target temperature detection value is greater than the second threshold value and less than or equal to the third threshold value, the third control instruction is obtained, wherein the third control instruction is used to indicate control to close the first water temperature relay and the second water temperature relay, and the third threshold value is greater than the second threshold value; When the target temperature detection value is greater than the third threshold value and less than or equal to the fourth threshold value, the fourth control instruction is obtained, and the fourth control instruction is used to indicate control to close the first water temperature relay, the second water temperature relay and the third water temperature relay, wherein the fourth threshold value is greater than the third threshold value; When the target temperature detection value is greater than the fourth threshold value, the fifth control instruction is obtained, and the fifth control instruction is used to indicate the control of closing the first water temperature relay, the second water temperature relay, the third water temperature relay and the fourth water temperature relay.

3. The diesel locomotive temperature control method according to claim 2, characterized in that: The step of obtaining the temperature control instruction through the relay control instruction comprises: Control the first water temperature relay, the second water temperature relay, the third water temperature relay and the fourth water temperature relay according to the first control instruction, the second control instruction, the third control instruction, the fourth control instruction and the fifth control instruction to obtain relay switching conditions; Obtaining the temperature control instruction according to the relay switch condition; After obtaining the temperature control instruction through the relay control instruction, the method further includes: The temperature control instruction is sent to the PLC module through the first output interface, the second output interface, the third output interface and the fourth output interface, wherein the PLC module is used to execute the temperature control instruction.

4. The diesel locomotive temperature control method according to claim 3, characterized in that: The temperature control instructions include diesel engine loading protection control instructions, cooling fan control instructions, diesel engine cooling water temperature high temperature alarm control instructions and diesel engine load unloading control instructions. The temperature control instructions are obtained through the relay switch status, including: When the first water temperature relay is closed, the diesel engine loading protection control instruction is obtained; When the first water temperature relay and the second water temperature relay are closed, the cooling fan control instruction is obtained; When the first water temperature relay, the second water temperature relay and the third water temperature relay are closed, a high temperature alarm control instruction for the cooling water temperature of the diesel engine is obtained; When the first water temperature relay, the second water temperature relay, the third water temperature relay and the fourth water temperature relay are closed, the diesel engine load unloading control instruction is obtained.

5. The diesel locomotive temperature control method according to claim 4, characterized in that: The water temperature sensor assembly comprises a first water temperature sensor, a second water temperature sensor, a third water temperature sensor and a fourth water temperature sensor which are sequentially installed on the water pipe of the internal combustion engine vehicle, wherein the first water temperature sensor is used to detect the water temperature in a first temperature range, the second water temperature sensor is used to detect the water temperature in a second temperature range, the third water temperature sensor is used to detect the water temperature in a third temperature range, and the fourth water temperature sensor is used to detect the water temperature in a fourth temperature range; The method of obtaining a target temperature detection value by detecting the water temperature of a water pipe of a diesel locomotive comprises: The water temperature is detected by the first water temperature sensor, the second water temperature sensor, the third water temperature sensor and the fourth water temperature sensor to obtain an original temperature detection value; When the original temperature detection value is within the first temperature range, obtaining the target temperature detection value through the first water temperature sensor; When the original temperature detection value is within the second temperature interval, the target temperature detection value is obtained through the second water temperature sensor, and the minimum temperature value of the second temperature interval is greater than the maximum temperature value of the first temperature interval; When the original temperature detection value is within the third temperature interval, the target temperature detection value is obtained by the third water temperature sensor, and the minimum temperature value of the third temperature interval is greater than the maximum temperature value of the second temperature interval; When the original temperature detection value is in the fourth temperature interval, the target temperature detection value is obtained by the fourth water temperature sensor, and the minimum temperature value of the fourth temperature interval is greater than the maximum temperature value of the third temperature interval.

6. The diesel locomotive temperature control method according to claim 1, characterized in that: The human-computer interaction panel includes a touch screen; after obtaining the preset temperature value and sending the preset temperature value to the data processing module, it also includes: The target temperature detection value sent by the data processing module is received according to a preset interaction interval time, and the target temperature detection value is displayed through the touch screen.

7. The diesel locomotive temperature control method according to claim 6, characterized in that: The step of obtaining a preset temperature value and sending the preset temperature value to the data processing module further includes: Acquiring the preset temperature value through the touch screen; The preset temperature value is sent to the data processing module according to the preset interaction interval time.

8. The diesel locomotive temperature control method according to claim 1, characterized in that: The step of obtaining a relay control instruction by comparing the target temperature detection value with the temperature preset value comprises: Performing analog-to-digital conversion on the target temperature detection value to obtain the target temperature detection value after analog-to-digital conversion; The relay control instruction is obtained by comparing the target temperature detection value after analog-to-digital conversion with the temperature preset value.

9. The diesel locomotive temperature control method according to claim 1, characterized in that: The method of obtaining a target temperature detection value by detecting the water temperature of a water pipe of a diesel locomotive and sending the target temperature detection value to the data processing module includes: Detecting the water temperature of the water pipe of the internal combustion engine vehicle according to a preset detection interval to obtain the target temperature detection value; The target temperature detection value is sent to the data processing module according to the preset detection interval.

10. A temperature control device for a diesel locomotive, characterized in that: Implementing the diesel locomotive temperature control method according to any one of claims 1 to 9, the diesel locomotive temperature control device comprises a temperature controller and a water temperature sensor assembly, the temperature controller comprises a human-computer interaction panel, a switch output module and a data processing module; The water temperature sensor assembly is used to obtain a target temperature detection value by detecting the water temperature of the water pipe of the diesel locomotive, and send the target temperature detection value to the data processing module; The human-computer interaction panel is used to obtain a preset temperature value and send the preset temperature value to the data processing module; The data processing module is used to obtain a relay control instruction by comparing the target temperature detection value with the temperature preset value, and send the relay control instruction to the switch output module; The switch output module is used to obtain a temperature control instruction through the relay control instruction, and the temperature control instruction is used to control the temperature of the diesel locomotive.

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