CN203995717U - A kind of screen of the TFT by CAN line declared speed table economic zone auto meter - Google Patents
A kind of screen of the TFT by CAN line declared speed table economic zone auto meter Download PDFInfo
- Publication number
- CN203995717U CN203995717U CN201420484028.2U CN201420484028U CN203995717U CN 203995717 U CN203995717 U CN 203995717U CN 201420484028 U CN201420484028 U CN 201420484028U CN 203995717 U CN203995717 U CN 203995717U
- Authority
- CN
- China
- Prior art keywords
- instrument
- tft
- led lamp
- line
- liquid crystal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 13
- 238000003745 diagnosis Methods 0.000 claims abstract description 8
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 239000011521 glass Substances 0.000 claims description 3
- 101100236764 Caenorhabditis elegans mcu-1 gene Proteins 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000036581 peripheral resistance Effects 0.000 description 1
Landscapes
- Instrument Panels (AREA)
Abstract
Name of the present utility model is called a kind of screen of the TFT by CAN line declared speed table economic zone auto meter.Belong to vehicle instrument display device technical field.It is mainly to solve existing auto meter to have the too many problem of special purpose interface and the unmatched problem of car load diagnosis interface and instrument model.Its principal character is: described liquid crystal display is TFT liquid crystal display; Instrument master chip MCU is connected with CAN transceiver by two order wires of built-in CAN interface, and this CAN transceiver is connected with car load diagnosis interface or CAN analyser instrument; LED lamp being connected with instrument master chip MCU of patch below each scale of speed gage calibrated disc on calibrated disc.The utlity model has Ke Shi car load factory and need not assemble according to vehicle configuration the instrument of specific model, adopt the CAN line of instrument demarcate or revise parameter, can make instrument accomplish flexible multi-purpose feature, be mainly used in the TFT screen auto meter that can communicate by letter by CAN line.
Description
Technical field
The utility model belongs to auto meter technical field.Be specifically related to a kind of automobile electronic combined instrument.
Background technology
Most truck instrument adopts the built-in serial communication of gauge internal master chip to demarcate each little table technical parameter, as the relation of car load speed ratio, pointer indication angle and resistance, voltage and pointer running velocity etc., feature is not need to increase extra hardware cost, but exist its special purpose interface not mate with car load diagnosis interface, after instrument entrucking, while revising parameter, need to take car load instrument face plate apart.
Due to car load factory, fill the driving engine of different model simultaneously, the economic zone of instrument speed gage, zone of alarm are just different, the demarcation that fills different ratio gearbox coupling instrument average speed indicators is just different, and the instrument model that causes like this Yi Ge car load factory to use is a lot, generally all reaches more than 200 kinds.
Summary of the invention
The purpose of this utility model is exactly that a kind of TFT screen General Motors instrument of demarcating by CAN line is provided for above-mentioned weak point.
Technical solution of the present utility model is: a kind of screen of the TFT by CAN line declared speed table economic zone auto meter, comprise instrument circuit board, instrument support, calibrated disc, meter hand, stepping motor, connector, button, liquid crystal display and shell, liner plate, glass containing instrument master chip MCU, it is characterized in that: described liquid crystal display is TFT liquid crystal display; Instrument master chip MCU is connected with by two order wires of built-in CAN interface the CAN transceiver consisting of CAN transponder chip and peripheral component thereof, and this CAN transceiver is connected with car load diagnosis interface or CAN analyser instrument through order wire; Patch one LED lamp below each scale of speed gage calibrated disc on calibrated disc, this LED lamp is connected with instrument master chip MCU by LED lamp drive circuit.
LED lamp described in the utility model technical solution is red or green compact LED lamp; Described LED lamp drive circuit drives chip and peripheral components and parts thereof to form by two 16 paths of LEDs lamps, by instrument program, is controlled and is lighted.
The utility model is due on the basis of existing auto meter, change liquid crystal display into TFT liquid crystal display, and on instrument circuit board, be provided with CAN transceiver, drive order wire CAN-H, CAN-L to be connected with car load diagnosis interface or CAN analyser instrument, thereby can to make the utility model instrument realize CAN communication function.As long as to the open meter calibration agreement of car load factory, just can make car load factory realize in-line meter parameter calibration or modification, will significantly reduce instrument kind, while operating, do not need to dismantle instrument face plate simultaneously yet.
The instrument of specific model need not be assembled according to vehicle configuration by the utility model Ke Shi car load factory, adopts the CAN line of instrument demarcate or revise parameter, can make instrument accomplish flexible multi-purpose.This technology can develop the CAN radiodiagnosis x of instrument, the CAN line renewal of instrument program etc. simultaneously.The utility model is mainly used in the TFT screen auto meter that can communicate by letter by CAN line.
Accompanying drawing explanation
Fig. 1 is instrument CAN communication circuit figure of the present utility model.
Fig. 2 is demarcation display interface of the present utility model.
Fig. 3 is LED lamp drive circuit figure of the present utility model.
Fig. 4 is speed gage calibrated disc of the present utility model below LED lamp placement figure.
The specific embodiment
As shown in Figure 1.A kind of screen of the TFT by CAN line declared speed table economic zone of the utility model auto meter comprises instrument circuit board, instrument support, calibrated disc, meter hand, stepping motor, connector, button, liquid crystal display and shell, liner plate, the glass containing instrument master chip MCU 1.Liquid crystal display adopts TFT liquid crystal display.Instrument master chip MCU 1 is connected with TXD, the RXD end of CAN transponder chip U100 by built-in CAN interface CAN0_TX and two order wires of CAN0_RX, the model of CAN transponder chip U100 is TJA1042T/5V, CAN transponder chip U100 and peripheral resistance R 100, R101, R102, capacitor C 100, C101, C102 thereof form CAN transceiver, and this CAN transceiver drives order wire CAN-H, CAN-L to be connected with car load diagnosis interface or CAN analyser instrument again.So just can use CAN line calibrating function.
As shown in Figure 2.First upper computer equipment or notebook are connected to ValueCAN3 or other CAN analyser instrument, if can demonstrate the CAN data of instrument outgoing on the reception information interface of software, show to connect, then the demarcation agreement of as prescribed sends order and data just can complete operation.Instrument master chip MCU 1 is by extending out CAN transponder chip U100(TJA1042T/5V) realize CAN communication function.Connection lead CAN-H, CAN-L and car load diagnosis interface CAN line on instrument connector links together simultaneously.Upper computer equipment or notebook PC use ValueCAN3 or other CAN analyser instrument like this, just can be by diagnostics port to meter calibration parameter.The CAN line that certainly, also can directly connect instrument connector place completes calibrating parameters.In figure, right side is shown as the progress of demarcation.As long as to the open meter calibration agreement of car load factory, just can car load factory realize on-line proving, will significantly reduce instrument kind, while operating, do not need to dismantle instrument face plate simultaneously yet.
As shown in Figure 3.LED lamp drive circuit drives chip U16, U17 and peripheral components and parts R137, R138 thereof by two LED light specials, and C156 ~ C161 forms, and is conventional connection mode, and the model of U16, U17 is STP16CP05.Be total to 26 LED lamps such as driving LED 1 ~ LED26.Instrument program drives chip to light respectively each LED lamp corresponding to scale division below of speed gage economic zone (900 forward 3500 to turns) by LED lamp according to nominal data again.Drive LED_SDI3, LED_CK, LED_LE, LED_OE in chip U16,4 ports are connected with 4 IO ports of instrument master chip MCU 1.
As shown in Figure 4.Totally 26, LED lamp, is red or green compact LED lamp, and below each scale of patch speed gage calibrated disc (900 forward 3500 to turns) on calibrated disc, this LED lamp is connected with instrument master chip MCU 1 by LED lamp drive circuit respectively.By instrument program, according to nominal data, by LED lamp, drive chip to light respectively again.
Claims (2)
1. the TFT by CAN line declared speed table economic zone shields auto meter, comprise containing instrument master chip MCU(1) instrument circuit board, instrument support, calibrated disc, meter hand, stepping motor, connector, button, liquid crystal display and shell, liner plate, glass, it is characterized in that: described liquid crystal display is TFT liquid crystal display; Instrument master chip MCU(1) by two order wires of built-in CAN interface (CAN0_TX, CAN0_RX), be connected with the CAN transceiver consisting of CAN transponder chip (U100) and peripheral component thereof, this CAN transceiver is connected with car load diagnosis interface or CAN analyser instrument through order wire (CAN-H, CAN-L); Patch one LED lamp below each scale of speed gage calibrated disc on calibrated disc, this LED lamp is by LED lamp drive circuit and instrument master chip MCU(1) be connected.
2. a kind of screen of the TFT by CAN line declared speed table economic zone auto meter according to claim 1, is characterized in that: described LED lamp is red or green compact LED lamp; Described LED lamp drive circuit drives chip and peripheral components and parts thereof to form by two 16 paths of LEDs lamps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420484028.2U CN203995717U (en) | 2014-08-27 | 2014-08-27 | A kind of screen of the TFT by CAN line declared speed table economic zone auto meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420484028.2U CN203995717U (en) | 2014-08-27 | 2014-08-27 | A kind of screen of the TFT by CAN line declared speed table economic zone auto meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203995717U true CN203995717U (en) | 2014-12-10 |
Family
ID=52035766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420484028.2U Expired - Fee Related CN203995717U (en) | 2014-08-27 | 2014-08-27 | A kind of screen of the TFT by CAN line declared speed table economic zone auto meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203995717U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104786845A (en) * | 2015-03-23 | 2015-07-22 | 中国重汽集团济南动力有限公司 | Method for adjusting engine economic rotating speed area automatically on instrument |
| CN104827907A (en) * | 2015-04-20 | 2015-08-12 | 浙江吉利汽车研究院有限公司 | Segment code screen human-computer interaction system |
| CN105711420A (en) * | 2016-01-19 | 2016-06-29 | 北京福田戴姆勒汽车有限公司 | Instrument and vehicle employing same |
| CN108444517A (en) * | 2018-03-21 | 2018-08-24 | 航天科技控股集团股份有限公司 | Portable multi-function Meter Test load test case and instrument detecting method |
-
2014
- 2014-08-27 CN CN201420484028.2U patent/CN203995717U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104786845A (en) * | 2015-03-23 | 2015-07-22 | 中国重汽集团济南动力有限公司 | Method for adjusting engine economic rotating speed area automatically on instrument |
| CN104786845B (en) * | 2015-03-23 | 2017-04-05 | 中国重汽集团济南动力有限公司 | A kind of method in the adjust automatically engine economical rotating speed area in instrument |
| CN104827907A (en) * | 2015-04-20 | 2015-08-12 | 浙江吉利汽车研究院有限公司 | Segment code screen human-computer interaction system |
| CN105711420A (en) * | 2016-01-19 | 2016-06-29 | 北京福田戴姆勒汽车有限公司 | Instrument and vehicle employing same |
| CN108444517A (en) * | 2018-03-21 | 2018-08-24 | 航天科技控股集团股份有限公司 | Portable multi-function Meter Test load test case and instrument detecting method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203995717U (en) | A kind of screen of the TFT by CAN line declared speed table economic zone auto meter | |
| CN207141176U (en) | A kind of steering position indicator and steering wheel | |
| CN203204387U (en) | Vehicle-mounted information terminal based on Beidou communication | |
| CN103595862B (en) | A kind of test macro of MIPI DSI controller | |
| CN209305503U (en) | A kind of automobile instrument system based on can bus | |
| CN201152942Y (en) | Automobile failure diagnosis instrument | |
| CN105355166B (en) | Embedded Control card, display card and oil price board control system | |
| US7248175B2 (en) | Synchronously lighting apparatus of vehicle meter | |
| CN202243022U (en) | Miniature instrument system of vehicle | |
| CN106200608A (en) | A kind of fault diagnosis system of automobile | |
| CN203713581U (en) | Internal combustion forklift combined instrument based on controller area network (CAN) bus | |
| US20110072176A1 (en) | Meter system with master/slave meters | |
| CN202522905U (en) | Multifunctional instrument control system | |
| CN102546479A (en) | Gateway for perceiving internet of things of coal yard | |
| CN206456471U (en) | A kind of electric vehicle instrument with Bluetooth function | |
| CN205247704U (en) | Polymorphic type sensor teaching experiment system based on STM32 treater | |
| CN202508029U (en) | CAN (Controller Area Network) bus-based AMT (Automated Mechanical Transmission) comprehensive information display system | |
| CN202879262U (en) | Intelligent instrument system | |
| WO2013130702A1 (en) | Instrument panel bus interface | |
| CN202541826U (en) | Digital three-sided rudder angle indicator | |
| CN102096994A (en) | Wireless instrument communication system | |
| CN113581711A (en) | Small-size storage warehouse-in and warehouse-out guide system | |
| CN201853115U (en) | Vehicle control system | |
| CN200995059Y (en) | Visual controller of mahjong table | |
| CN210284482U (en) | Intelligent motorcycle instrument |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 441000 Jiangshan South Road Venture Center, Xiangyang High-tech Zone, Hubei Province Patentee after: Dongfeng Power Drive System Co.,Ltd. Address before: 441001 No. 227 Daqing East Road, Xiangfan City, Hubei Province Patentee before: DONGFENG AUTOMOBILE ELECTRONICS Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 |