CN111913131A - Vehicle heating monitoring system - Google Patents
Vehicle heating monitoring system Download PDFInfo
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- CN111913131A CN111913131A CN201910576765.2A CN201910576765A CN111913131A CN 111913131 A CN111913131 A CN 111913131A CN 201910576765 A CN201910576765 A CN 201910576765A CN 111913131 A CN111913131 A CN 111913131A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/08—Railway vehicles
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/005—Testing of electric installations on transport means
- G01R31/008—Testing of electric installations on transport means on air- or spacecraft, railway rolling stock or sea-going vessels
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Abstract
The invention provides a vehicle heating monitoring system, and belongs to the technical field of vehicles. The electric heating device is used for heating the vehicle, the monitoring device is used for monitoring the working state of the electric heating device, and the processor is used for analyzing whether the electric heating device normally works or not according to the monitoring result. The system has the dual functions of heating and monitoring, can judge whether the electric heating device normally works in real time, is convenient for a driver or a monitoring person to timely know the heating condition of the locomotive, timely finds and removes faults, ensures the application requirement of the vehicle under extremely low environmental temperature, and improves the reliability and the safety of the vehicle.
Description
Technical Field
The invention relates to the technical field of locomotives, in particular to a vehicle heating monitoring system.
Background
With the entry of domestic electric locomotives into the northeast region and foreign markets such as wuzbekhstan, hassakestan and the like, the winter severe cold climate in these regions poses a great challenge to the normal operation of electric locomotives.
In these areas, the minimum temperature can typically be as low as-20 ℃ to-30 ℃ and, in extreme cases, as low as-40 ℃, thus requiring that the locomotive should be able to meet the capability of normal operation at low temperatures of-40 ℃ and even-50 ℃. The air pipeline system of the electric locomotive is easy to have the problems of performance reduction of parts, freezing of pipelines and valves and the like at low temperature, so that equipment faults are caused, the normal operation of the locomotive is seriously influenced, and even the safety problem is brought. Therefore, the cold-proof heating treatment of the locomotive is an important link for ensuring the quality of the locomotive.
It is to be noted that the information invented in the above background section is only for enhancing the understanding of the background of the present invention, and therefore, may include information that does not constitute prior art known to those of ordinary skill in the art.
Disclosure of Invention
The invention aims to provide a vehicle heating monitoring system, which solves the problem that the existing vehicle is easy to break down in a low-temperature environment.
According to one aspect of the present invention, there is provided a vehicle heating monitoring system comprising:
an electric heating device provided to the vehicle;
the monitoring device is connected with the electric heating device and is used for monitoring the heating information of the electric heating device in real time;
and the processor is connected with the monitoring device and used for analyzing whether the electric heating device works normally or not according to the heating information.
In an exemplary embodiment of the invention, the monitoring device comprises a monitoring circuit, the monitoring circuit is connected with a heating circuit of the electric heating device and is used for monitoring the on-off of the heating circuit in real time; wherein, the process that the processor analyzes whether the electric heating device works normally according to the monitoring result of the monitoring device comprises the following steps:
analyzing the current working state of the electric heating device according to the on-off state of the heating circuit, wherein the current working state comprises opening and closing;
comparing the current working state of the electric heating device with a preset working state, wherein the preset working state comprises opening and closing; when the current working state is consistent with the preset working state, judging that the electric heating device works normally; and when the current working state is inconsistent with the preset working state, judging that the electric heating device abnormally works.
In an exemplary embodiment of the invention, the monitoring device further includes a temperature sensor, the temperature sensor is disposed on the electric heating device and is used for sensing the current temperature of the electric heating device, and the temperature sensor is further connected with the processor; wherein, the process that the processor analyzes whether the electric heating device works normally according to the monitoring result of the monitoring device comprises the following steps:
analyzing the current working state of the electric heating device according to the on-off state of the heating circuit; the current working state comprises opening and closing;
comparing the current working state of the electric heating device with a preset working state, wherein the preset working state comprises opening and closing; when the current working state is inconsistent with the preset working state, judging that the electric heating device does not work normally; when the current working state is consistent with the preset working state, comparing the current temperature of the electric heating device sensed by the temperature sensor with a preset temperature threshold range, and when the current temperature is within the preset temperature threshold range, judging that the electric heating device works normally; and when the current temperature is beyond the range of the preset temperature threshold value, judging that the electric heating device does not work normally.
In one exemplary embodiment of the present invention, the vehicle heating monitoring system further includes: and the display device is connected with the processor and used for displaying the analysis result of the processor.
In one exemplary embodiment of the present invention, the vehicle heating monitoring system further includes: and the alarm device is connected with the processor, and the processor is also used for starting the alarm device when the electric heating device works abnormally.
In an exemplary embodiment of the invention, the processor further includes: and the data recording unit is connected with the processor and used for recording the analysis result of the processor.
In an exemplary embodiment of the invention, the processor further includes: the processor is also used for controlling the heating temperature of the electric heating device through the heating control unit.
In an exemplary embodiment of the invention, the processor further includes: and the communication unit is connected with the processor and is used for transmitting the analysis result of the processor to a device outside the vehicle heating monitoring system.
In an exemplary embodiment of the invention, the monitoring circuit comprises a current sensor or a voltage sensor.
In an exemplary embodiment of the invention, the electric heating device comprises an electric heating belt.
The vehicle heating monitoring system comprises an electric heating device for heating a vehicle and a monitoring device for monitoring the working state of the electric heating device. On the one hand, the system has heating capacity, can heat the part of the locomotive needing to be heated, prevents pipelines or valves from freezing at low temperature, also can prevent the performance of equipment from being reduced, ensures that the locomotive can normally work in severe cold environment, and improves the quality and the safety of the locomotive. On the other hand, the system has monitoring capability, can monitor the heating information of the electric heating system in real time, and judges whether the electric heating device works normally, so that a driver or a monitoring person can know the heating condition of the locomotive in time, find fault information in time, take measures in time to ensure the normal use of the locomotive, and improve the quality and the safety of the locomotive. The heating monitoring system meets the application requirements of the locomotive at extremely low environmental temperatures such as northeast and the like, and ensures the reliability and safety of the braking system and the air pipeline thereof.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a schematic illustration of a locomotive system incorporating the heating monitoring system of the present invention;
fig. 2 is a schematic structural diagram of the heating monitoring system of the present invention.
In fig. 1: 101. an air compressor filter blowoff valve; 102. a dryer; 103. a dryer blowoff valve; 104. a dryer check valve; 105. a total wind filter; 106. a total wind high-pressure safety valve; 107. a main reservoir blow-down valve; 108. a pantograph lifting control valve; 109. a gas delivery line.
In fig. 2: 10. an electric heating device; 20. a monitoring device; 30. a processor; 40. a display device; 50. an alarm device; 31. a data recording unit; 32. a communication unit; 33. a heating control unit; 34. an alarm unit; 35. and a power supply module.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.
The embodiment of the invention provides a vehicle heating monitoring system which can be used for cold protection of various vehicles such as electric locomotives, diesel locomotives, electric motor cars, internal combustion motor cars, ordinary automobiles and the like. The following description will be given taking an electric locomotive as an example.
As shown in fig. 1, for an electric locomotive, the parts to be heated usually include an air compressor filter blowoff valve, a dryer blowoff valve, a dryer check valve, a main air filter, a main air high-pressure safety valve, a main air reservoir blowoff valve, a pantograph-raising control valve, a gas delivery pipeline, etc., and these parts are key parts of a locomotive braking system, and the working conditions of these electric heating bands are monitored, so that the normal operation of the locomotive can be effectively guaranteed. Of course, the heating portion may be specifically set as needed.
As shown in fig. 2, the vehicle heating monitoring system according to the embodiment of the present invention includes an electric heating device 10, a monitoring device 20, a processor 30, and a display device 40, and the electric heating device 10 is disposed at a portion of the electric locomotive that needs to be heated, for preventing freezing. The monitoring device 20 is connected to the electric heating device 10 and is used for monitoring heating information of the electric heating device 10 in real time. The monitoring circuit is further connected to the processor 30, and transmits the monitoring result to the processor 30, and the processor 30 analyzes whether the electric heating apparatus 10 is working normally according to the monitoring result. The display device 40 is connected to the processor 30 and is used for displaying the analysis result of the processor 30.
The system has the heating capacity, can heat the part of the locomotive needing to be heated, prevents pipelines or valves from being frozen at low temperature, also can prevent the performance of equipment from being reduced, ensures that the locomotive can normally work in severe cold environment, and improves the quality and the safety of the locomotive. The system has monitoring capability, can monitor the heating information of the electric heating system in real time, judges whether the electric heating device 10 normally works or not, displays the result, is convenient for a driver or a monitoring person to know the heating condition of the locomotive in time, finds fault information in time, takes measures in time to ensure the normal use of the locomotive, and improves the quality and the safety of the locomotive.
The following describes a vehicle heating monitoring system according to an embodiment of the present invention in detail:
in an exemplary embodiment of the present invention, the electric heating device may be an electric heating tape (also called a heat tracing tape). The electric heating belt mainly comprises an electric heating material, an insulating material and the like, wherein the electric heating material is a nichrome belt and has the characteristics of quick heating, high thermal efficiency, long service life and the like, and the insulating material is a plurality of layers of alkali-free glass fibers and has good temperature resistance and reliable insulating property. The electric heating belt is soft in structure, can be directly wound on the surface of a heated part to be heated in use, and is uniform in temperature, simple to install, convenient to use, safe and reliable. The present application does not limit the specific material of the electric heating tape. Of course, in other embodiments, other electrical heating devices may be used, and are not listed here.
In an exemplary embodiment of the present invention, the monitoring device 20 includes a monitoring circuit, which is connected to the heating circuit of the electric heating device 10, and can monitor the on and off of the heating circuit in real time and transmit the monitoring signal to the processor 30. The processor 30 can know whether the current operation state of the electric heating apparatus 10 is on or off, i.e. whether it is operating, according to the on and off conditions of the heating circuit. The results are then displayed in the cab or control room via the display device 40, enabling the operator to know in real time whether the electric heating device 10 is heating. The monitoring circuit may be a current sensor or a voltage sensor, and the current sensor or the voltage sensor may determine whether the heating circuit of the electric heating apparatus 10 is turned on or off by detecting whether the heating circuit has current or voltage.
Because the outside air temperature can change, an operator needs to decide whether the electric heating device should be started according to the outside air temperature, and the electric heating device is started when needed and is closed when not needed so as to reduce energy consumption. The manual judgment can consume the energy of the operator, the workload of the operator can be reduced through automatic judgment, and the working efficiency is improved.
The preset working state also comprises opening and closing, and can be set according to weather forecast, historical temperature data, locomotive performance, historical working conditions and the like of different regions, temperatures, locomotives and the like can correspond to different working states and are stored in the processor in advance, and when the locomotive arrives at different regions, reaches different temperatures or corresponds to different locomotives, the corresponding preset working state can be switched. For example, the electric heating means are activated when at ambient temperature below 5 ℃. The electric heating device is switched off when at ambient temperature above 5 ℃.
The processor 30 includes, but is not limited to, a PLC and a single chip microcomputer, and has various functions such as storage, logic judgment, control, and the like. The specific judgment process of the processor for judging may be:
and S1, acquiring whether the current working state of the electric heating device is on or off according to the on and off conditions of the heating circuit, namely whether the electric heating device is working.
And S2, comparing the current working state of the electric heating device with the preset working state. If the current working state of the electric heating device is consistent with the preset working state, the electric heating device 10 is indicated to work normally; when the current working state is inconsistent with the preset working state, it is determined that the electric heating apparatus 10 is not operating normally.
Wherein, the normal working condition comprises that the electric heating device is switched on when the low temperature needs to be heated, and the electric heating device is switched off when the normal temperature or the high temperature does not need to be heated. The abnormal operation condition includes that the electric heating device is not turned on when heating is needed at a low temperature, or the electric heating device is turned on when heating is not needed at a normal temperature or a high temperature.
In an exemplary embodiment of the present invention, the monitoring device 20 further includes a temperature sensor disposed on the electric heating device 10 for sensing a current temperature of the electric heating device 10 and transmitting a sensing signal to the processor 30 for determining an actual heating temperature of the electric heating device 10. The actual heating temperature is displayed in a cab or a control room, an operator can visually see the temperature condition of the corresponding part of the locomotive, and the direct help is provided for judging the heating temperature and whether the fault conditions such as freezing exist.
Because ambient temperature can change, operating personnel need judge whether actual heating temperature satisfies the demand according to ambient temperature, and manual judgement can consume operating personnel's energy, then can reduce operating personnel's work load through automatic judgement, improves work efficiency. Meanwhile, under the conditions that the electric heating device is used for a long time or used in an extremely severe environment and the like, the actual heating temperature of the electric heating device may be reduced and cannot reach the initial set temperature, so that the problem of inaccurate sensing exists, and the judgment of an operator on the heating condition and the fault may be influenced. Therefore, as a further optimization, a preset temperature threshold may be set in the processor, and automatically compared with the actual sensed temperature, within which the heating temperature is indicated to meet the current demand, so as to consider the electric heating device to work normally.
The preset temperature threshold value can be set according to weather forecast, historical temperature data, locomotive performance, historical working conditions and the like of different regions, temperatures, locomotives and the like can correspond to different preset temperature threshold values, the different preset temperature threshold values are stored in the processor in advance, and when the locomotive arrives at different regions, reaches different temperatures or corresponds to different locomotives, the corresponding preset working state can be switched.
In order to save energy consumption, the temperature can be judged only after the electric heating device is confirmed to be started to meet normal requirements, and if the electric heating device is not started or is started when heating is not needed, the heating temperature of the electric heating device does not need to be judged. Therefore, the specific judgment process of judging by using the processor may be as follows:
and S1, acquiring whether the current working state of the electric heating device is on or off according to the on and off conditions of the heating circuit, namely whether the electric heating device is working.
S2, comparing the current operation state of the electric heating device 10 with the preset operation state. When the current working state is inconsistent with the preset working state, judging that the electric heating device does not work normally; if the current operation state of the electric heating apparatus 10 is consistent with the preset operation state, the process proceeds to step S3.
Step S3, comparing the current temperature of the electric heating device sensed by the temperature sensor with a preset temperature threshold range, and judging that the electric heating device normally works when the current temperature is within the preset temperature threshold range; and when the current temperature is beyond the range of the preset temperature threshold value, judging that the electric heating device abnormally works.
Wherein, the condition of normal work includes that electric heater unit opens when low temperature needs the heating, and electric heater unit closes when normal atmospheric temperature or high temperature do not need the heating, and electric heater unit opens the back heating temperature and reaches the requirement simultaneously. The abnormal working condition comprises that the electric heating device is not started when the low temperature needs to be heated, or the electric heating device is started when the normal temperature or the high temperature does not need to be heated, or the heating temperature does not reach the requirement after the electric heating device is started.
In the exemplary embodiment of the present invention, the processor 30 further includes a data recording unit 31, configured to record an analysis result of the processor 30, so that an operator can refer to historical data information for recovering and tracing the occurrence of the fault. The data recording unit 31 may employ an event recorder.
In an exemplary embodiment of the present invention, the processor 30 further includes a communication unit 32, and the communication unit 32 is used to communicate the heating condition of each component of the locomotive with the locomotive control system or other peripheral remote control units to realize the monitoring and feedback of the heating condition. The communication unit 32 includes, but is not limited to, Ethernet or GPRS or USB or RS232 or RS485 or CAN or MVB.
In an exemplary embodiment of the present invention, the processor 30 further comprises a heating control unit 33, and the heating control unit 33 is connected to the electric heating device 10 for controlling the heating temperature of the electric heating device 10. When the actual temperature sensed by the processor 30 through the temperature sensor is outside the preset temperature threshold range, the heating control unit controls the switch of the electric heating device 10 or adjusts the heating temperature, so that the local temperature of the locomotive can be always within the control range.
In an exemplary embodiment of the invention, the vehicle heating monitoring system further includes an alarm device 50 for prompting a crew member or a service operator to perform a fault handling. Accordingly, the processor 30 further comprises an alarm unit 34 for controlling the alarm device 50, and for turning on the alarm device 50 when the electric heating apparatus 10 is not operating normally, for example, when the electric heating apparatus 10 is not operating normally, i.e. not turning on or off as required, or when the heating temperature is not reached, the alarm device 50 gives an alarm. The alarm device 50 may be an audible alarm (such as a buzzer) or a light alarm, and the detailed description thereof is omitted here.
In an exemplary embodiment of the invention, processor 30 further includes a power module 35 for outputting power having an input of DC110V in the form of DC24V for operation of the heating monitoring system. The allowable fluctuation range of the input voltage is 77V-137.5V. The power supply meeting the condition can realize the normal operation of the heating monitoring system.
Although relative terms, such as "upper" and "lower," may be used in this specification to describe one element of an icon relative to another, these terms are used in this specification for convenience only, e.g., in accordance with the orientation of the examples described in the figures. It will be appreciated that if the device of the icon were turned upside down, the element described as "upper" would become the element "lower". When a structure is "on" another structure, it may mean that the structure is integrally formed with the other structure, or that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure via another structure.
The terms "a," "an," "the," "said," and "at least one" are used to indicate the presence of one or more elements/components/parts/etc.; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. other than the listed elements/components/etc.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
Claims (10)
1. A vehicle heating monitoring system, comprising:
an electric heating device provided to the vehicle;
the monitoring device is connected with the electric heating device and is used for monitoring the heating information of the electric heating device in real time;
and the processor is connected with the monitoring device and used for analyzing whether the electric heating device works normally or not according to the heating information.
2. The vehicle heating monitoring system according to claim 1, wherein the monitoring device comprises a monitoring circuit, and the monitoring circuit is connected with the heating circuit of the electric heating device and is used for monitoring the on-off of the heating circuit in real time; wherein, the process that the processor analyzes whether the electric heating device works normally according to the monitoring result of the monitoring device comprises the following steps:
analyzing the current working state of the electric heating device according to the on-off state of the heating circuit, wherein the current working state comprises opening and closing;
comparing the current working state of the electric heating device with a preset working state, wherein the preset working state comprises opening and closing; when the current working state is consistent with the preset working state, judging that the electric heating device works normally; and when the current working state is inconsistent with the preset working state, judging that the electric heating device abnormally works.
3. The vehicle heating monitoring system of claim 2, wherein the monitoring device further comprises a temperature sensor disposed on the electric heating device for sensing a current temperature of the electric heating device, the temperature sensor further connected to the processor; wherein, the process that the processor analyzes whether the electric heating device works normally according to the monitoring result of the monitoring device comprises the following steps:
analyzing the current working state of the electric heating device according to the on-off state of the heating circuit; the current working state comprises opening and closing;
comparing the current working state of the electric heating device with a preset working state, wherein the preset working state comprises opening and closing; when the current working state is inconsistent with the preset working state, judging that the electric heating device does not work normally; when the current working state is consistent with the preset working state, comparing the current temperature of the electric heating device sensed by the temperature sensor with a preset temperature threshold range, and when the current temperature is within the preset temperature threshold range, judging that the electric heating device works normally; and when the current temperature is beyond the range of the preset temperature threshold value, judging that the electric heating device does not work normally.
4. The vehicle heating monitoring system of claim 3, further comprising:
and the display device is connected with the processor and used for displaying the analysis result of the processor.
5. The vehicle heating monitoring system of claim 4, further comprising:
and the alarm device is connected with the processor, and the processor is also used for starting the alarm device when the electric heating device works abnormally.
6. The vehicle heating monitoring system of claim 1, wherein the processor further comprises:
and the data recording unit is connected with the processor and used for recording the analysis result of the processor.
7. The vehicle heating monitoring system of claim 1, wherein the processor further comprises:
the processor is also used for controlling the heating temperature of the electric heating device through the heating control unit.
8. The vehicle heating monitoring system of claim 1, wherein the processor further comprises:
and the communication unit is connected with the processor and is used for transmitting the analysis result of the processor to a device outside the vehicle heating monitoring system.
9. The vehicle heating monitoring system of claim 2 or 3, wherein the monitoring circuit comprises a current sensor or a voltage sensor.
10. The vehicle heating monitoring system of claim 1, wherein the electrical heating device comprises an electrical heating belt.
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| CN201910576765.2A CN111913131B (en) | 2019-06-28 | 2019-06-28 | Vehicle Heating Monitoring System |
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| CN106956606A (en) * | 2017-03-17 | 2017-07-18 | 保定中兴田野新能源汽车科技有限公司 | Electric automobile novel heating system and its control method |
| CN107985018A (en) * | 2017-12-07 | 2018-05-04 | 无锡职业技术学院 | A kind of in-car heating control system of electric automobile and method |
| CN108492893A (en) * | 2018-02-07 | 2018-09-04 | 中国原子能科学研究院 | A kind of electric heating system fault handling method |
| CN208544275U (en) * | 2018-07-12 | 2019-02-26 | 中车太原机车车辆有限公司 | A kind of intelligent electric power locomotive heater |
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| CN111913131B (en) | 2023-08-25 |
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