CN103019270B - There is the engine driver display unit that low temperature preheats function - Google Patents
There is the engine driver display unit that low temperature preheats function Download PDFInfo
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- CN103019270B CN103019270B CN201210375962.6A CN201210375962A CN103019270B CN 103019270 B CN103019270 B CN 103019270B CN 201210375962 A CN201210375962 A CN 201210375962A CN 103019270 B CN103019270 B CN 103019270B
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Abstract
The invention discloses and a kind of there is the engine driver display unit that low temperature preheats function, have: there is the display module of liquid crystal display and provide the temperature automatically controlled module of heat insulation function for this display module, described temperature automatically controlled module has: sense ambient temperature, generates and the temperature sensor of output temperature signal; Be fixed on the heating film in described liquid crystal display; Be connected with this heating film, control the relay of heating film work; And be connected with relay with described temperature sensor, the temperature threshold of the temperature signal uploaded according to temperature sensor and setting in advance, control adhesive and the disconnection of described relay, and then control the single-chip microcomputer of work of described heating film, this single-chip microcomputer is with register in sheet.Ensure that the use of driver display unit does not exceed its service condition, requirements particularly temperature environment requires to be met, and significantly reduces the device fault often occurred and afunction, greatly improves the actual life of driver display unit.
Description
Technical field
The present invention relates to a kind of engine driver display unit, particularly relate to and a kind of there is the engine driver display unit that low temperature preheats function.
Background technology
Engine driver display unit (DDU) is the platform that engineer and mobile unit carry out information interaction, is an important component part of locomotive network monitoring management system.Along with the high speed development of railway, more and more stricter to the demand of vehicle electronics product quality, applied environment condition is also more and more higher, current most of traditional driver display unit can not meet the demand of following railway, therefore a kind ofly can possess the engine driver display unit that still can keep high-effect high-quality work under the rigor condition such as high and cold low temperature in the urgent need to designing, thus provide effective information, provide effective, safe Operating Guideline for the catastrophic failure in driving conditions for driver.
Attemperating unit is widely used in the process of industrialization of modern society, particularly carry out there is a large amount of exemplary applications in the product of relevant control at needs according to temperature, but in locomotive field, particularly in this product category of driver display unit, owing to being satisfied-25 DEG C to the requirement of products application environment before, so there is no come into operation for the driver display unit of cryogenic applications environment specially.
Because to the use of driver display unit, existing display unit does not all judge whether its service condition meets, therefore often just driver display unit is devoted oneself to work when not meeting condition of work, because environment temperature is too low, power supply and other functional template cisco unity malfunctions in unit, therefore often can occur that device fault causes and even cause afunction, seriously shorten unit actual life.
Summary of the invention
For the proposition of above problem, the invention discloses and a kind of there is the engine driver display unit that low temperature preheats function, have:
Have the display module of liquid crystal display and provide the temperature automatically controlled module of heat insulation function for this display module, described temperature automatically controlled module has:
Sense ambient temperature, generates and the temperature sensor of output temperature signal;
Be fixed on the heating film in described liquid crystal display;
Be connected with this heating film, control the relay of heating film work; And
Be connected with relay with described temperature sensor, the temperature threshold of the temperature signal uploaded according to temperature sensor and setting in advance, control adhesive and the disconnection of described relay, and then control the single-chip microcomputer of work of described heating film, this single-chip microcomputer is with register in sheet.
Described temperature threshold is-25 DEG C: when the temperature signal that described temperature sensor exports is lower than-25 DEG C, the adhesive of described Single-chip Controlling relay, and described heating film work ensures the working temperature temperature of described display module; When the temperature signal that described temperature window device exports is higher than-25 DEG C, relay described in Single-chip Controlling disconnects, and heating film quits work.
At least one is arranged on band gap type temperature sensor in locomotive driving cabin, temperature inversion is AD sensor and a comparer of digital signal by least one; This comparer provides the overtemperature indicator of open-drain to export; During work, described comparer extracts the high and low temperature threshold of described interior Register Set, and when exceeding the thresholding of setting, described overtemperature indicator exports effectively.
Described AD sensor is 10 temperature sensors, and precision is 0.25 DEG C.
Described heating film is transparent electrical heating film, is arranged on the outside surface of described liquid crystal display.
Described heating film also comprises: the electric heating film being arranged on described liquid crystal display back.
Owing to have employed technique scheme, provided by the invention have the engine driver display unit that low temperature preheats function, can ensure that the use of driver display unit does not exceed its service condition, requirements particularly temperature environment requires to be met, significantly can reduce the device fault and afunction that often occur, greatly can improve the actual life of driver display unit.
Accompanying drawing explanation
In order to the technical scheme of clearer explanation embodiments of the invention or prior art, introduce doing one to the accompanying drawing used required in embodiment or description of the prior art simply below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the process flow diagram of heat-insulation system work of the present invention
Fig. 2 is principle schematic of the present invention
Embodiment
For making the object of embodiments of the invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, clear complete description is carried out to the technical scheme in the embodiment of the present invention:
As shown in Figure 1-2: a kind of have the engine driver display unit that low temperature preheats function, has:
Realize, in the normal driving process of locomotive, realizing the display module of each parameter, display module has multiple liquid crystal display.Described display unit also comprises for described display module provides the temperature automatically controlled module of heat insulation function.
In order to realize implementing insulation to the liquid crystal display in display module, preferably, temperature automatically controlled module at least has: sense ambient temperature, generate and the temperature sensor of output temperature signal, receiving part in locomotive driving cabin can be fixed on during use or directly be fixed on the inside of display unit, closer to display module, to obtain environment temperature more accurately.
In order to give the heating of display module, preferably, have selected the heating film be fixed in described liquid crystal display in the present invention, as heat emitting medium.
In order to control the start and stop of the work of heating film, prevent overheated and idle situation, preferably, system also has and is connected with this heating film, controls the relay of heating film work.
And the core component in the present invention: be connected with relay with described temperature sensor, the temperature threshold of the temperature signal uploaded according to temperature sensor and setting in advance, control adhesive and the disconnection of described relay, and then controlling the single-chip microcomputer of work of described heating film, this single-chip microcomputer is with register in sheet.
Further, for the energy-conservation object with the minimum temperature of guarantee liquid crystal display operation, described temperature threshold is-25 DEG C: when the temperature signal that described temperature sensor exports is lower than-25 DEG C, the adhesive of described Single-chip Controlling relay, described heating film work, ensures the working temperature temperature of described display module; When the temperature signal that described temperature window device exports is higher than-25 DEG C, relay described in Single-chip Controlling disconnects, and heating film quits work, and can ensure the normal work of liquid crystal display like this, the electric energy that also unlikely loss is too much.
Further in order to obtain the operating ambient temperature of system accurately.Temperature sensor has:
At least one be arranged in locomotive driving cabin or display unit inside band gap type temperature sensor, temperature inversion is AD sensor and a comparer of digital signal by least one; During work, described comparer extracts the high and low temperature threshold that described interior register sets in advance, and provides " overtemperature indicator " (OTI) of an open-drain to export, and the OTI described in when exceeding the thresholding of setting exports effectively.
Further, described AD sensor is at least required to be 10 temperature sensors, and precision is 0.25 DEG C.
Described heating film can comprise two kinds of heating films: a kind of is transparent electrical heating film, is arranged on the outside surface of described liquid crystal display.Another kind of for being arranged on the electric heating film at described liquid crystal display back.Electric heating film specification: substrate-glass (as soda-lime or Pyrex), acrylate, polycarbonate or polyester etc.The specification of customization heating film: index meets ITO coating needs, and maximum transmission rate is up to 99%.By the customization technique that Dontech is proprietary, customization wire annex.Bus option: splash-proofing sputtering metal, frit (pottery), welding, Metal loading, acrylic fibers, terylene, and epoxy resin.Can arrange in pairs or groups thermal sensor and temperature regulation controller uses jointly.Transparent heating film can be bonded in front panel or the back substrate of touch-screen and liquid crystal display by the electric heating film of customization.Transparent heating film can be configured to provide EMI, RFI liquid crystal display to shield.
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (5)
1. there is the engine driver display unit that low temperature preheats function, have:
Have the display module of liquid crystal display and provide the temperature automatically controlled module of heat insulation function for this display module, described temperature automatically controlled module has:
Sense ambient temperature, generates and the temperature sensor of output temperature signal;
Be fixed on the heating film in described liquid crystal display;
Be connected with this heating film, control the relay of heating film work; And
Be connected with relay with described temperature sensor, the temperature threshold of the temperature signal uploaded according to temperature sensor and setting in advance, control adhesive and the disconnection of described relay, and then the single-chip microcomputer of work of heating film described in controlling, this single-chip microcomputer is with register in the sheet of setting high and low temperature;
Described temperature sensor comprises: at least one is arranged on band gap type temperature sensor in locomotive driving cabin, temperature inversion is AD converter and a comparer of digital signal by least one; This comparer provides the overtemperature indicator of open-drain to export; During work, described comparer extracts the high and low temperature threshold of described interior Register Set, and when exceeding the thresholding of setting, described overtemperature indicator exports effectively.
2. according to claim 1 a kind ofly have the engine driver display unit that low temperature preheats function, be further characterized in that: described temperature threshold is-25 DEG C: when the temperature signal that described temperature sensor exports is lower than-25 DEG C, the adhesive of described Single-chip Controlling relay, described heating film work, ensures the working temperature of described display module; When the temperature signal that described temperature sensor exports is higher than-25 DEG C, relay described in Single-chip Controlling disconnects, and heating film quits work.
3. according to claim 1 a kind ofly have the engine driver display unit that low temperature preheats function, and be further characterized in that described AD converter is 10 temperature sensors, precision is 0.25 DEG C.
4. according to claim 1 a kind ofly have the engine driver display unit that low temperature preheats function, is further characterized in that described heating film is transparent electrical heating film, is arranged on the outside surface of described liquid crystal display.
5. according to claim 4 a kind ofly have the engine driver display unit that low temperature preheats function, is further characterized in that described heating film also comprises: the electric heating film being arranged on described liquid crystal display back.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210375962.6A CN103019270B (en) | 2012-09-29 | 2012-09-29 | There is the engine driver display unit that low temperature preheats function |
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| CN201210375962.6A CN103019270B (en) | 2012-09-29 | 2012-09-29 | There is the engine driver display unit that low temperature preheats function |
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| CN103019270B true CN103019270B (en) | 2015-09-30 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103324167B (en) * | 2013-05-30 | 2015-11-18 | 中国北车集团大连机车研究所有限公司 | Driver display unit of rapid passenger transport electric locomotive |
| CN106469543B (en) * | 2015-08-19 | 2019-08-16 | 南车株洲电力机车研究所有限公司 | A kind of locomotive vehicle-mounted display control unit, system and method |
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| DE102004029102A1 (en) * | 2003-06-16 | 2005-05-04 | Tokyo Electron Ltd | Substrate processing device and substrate processing method |
| CN201477318U (en) * | 2009-08-20 | 2010-05-19 | 深圳市天正达电子有限公司 | Improved liquid crystal display |
| CN101763126A (en) * | 2008-12-25 | 2010-06-30 | 北京航峰科伟装备技术有限公司 | Wide-temperature control device for LCD (liquid crystal display) |
| CN201622482U (en) * | 2010-01-20 | 2010-11-03 | 安徽华东光电技术研究所 | Temperature control system for reinforced liquid crystal display |
| CN101995688A (en) * | 2009-08-27 | 2011-03-30 | 厦门立林科技有限公司 | Monochrome liquid crystal display module capable of working at low temperature |
| CN201904054U (en) * | 2010-12-14 | 2011-07-20 | 浙江亚通通信科技有限公司 | Liquid crystal display of bus station board capable of working at low temperature |
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2012
- 2012-09-29 CN CN201210375962.6A patent/CN103019270B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004029102A1 (en) * | 2003-06-16 | 2005-05-04 | Tokyo Electron Ltd | Substrate processing device and substrate processing method |
| CN101763126A (en) * | 2008-12-25 | 2010-06-30 | 北京航峰科伟装备技术有限公司 | Wide-temperature control device for LCD (liquid crystal display) |
| CN201477318U (en) * | 2009-08-20 | 2010-05-19 | 深圳市天正达电子有限公司 | Improved liquid crystal display |
| CN101995688A (en) * | 2009-08-27 | 2011-03-30 | 厦门立林科技有限公司 | Monochrome liquid crystal display module capable of working at low temperature |
| CN201622482U (en) * | 2010-01-20 | 2010-11-03 | 安徽华东光电技术研究所 | Temperature control system for reinforced liquid crystal display |
| CN201904054U (en) * | 2010-12-14 | 2011-07-20 | 浙江亚通通信科技有限公司 | Liquid crystal display of bus station board capable of working at low temperature |
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Address after: 116021 Shahekou, Liaoning, China No. 49 The Strip Patentee after: CRRC DALIAN INSTITUTE CO., LTD. Address before: 116021 Shahekou, Liaoning, China No. 49 The Strip Patentee before: CNR Dalian Locomotive Research Institute Co., Ltd. |
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