CN202110758U - Multifunctional liquid crystal display device - Google Patents
Multifunctional liquid crystal display device Download PDFInfo
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- CN202110758U CN202110758U CN 201020275358 CN201020275358U CN202110758U CN 202110758 U CN202110758 U CN 202110758U CN 201020275358 CN201020275358 CN 201020275358 CN 201020275358 U CN201020275358 U CN 201020275358U CN 202110758 U CN202110758 U CN 202110758U
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Abstract
The utility model discloses a multifunctional liquid crystal display device, comprising a master control module, a video decoding submodule, a voice synthesis submodule, a memory module, a serial interface, a keyboard, a Chinese character library, an external memory card and a liquid crystal display. The multifunctional liquid crystal display device is connected with a vehicle data acquisition terminal through the serial interface and thus is capable of displaying information acquired, processed and output by the vehicle data acquisition terminal, displaying information and vehicle information forwarded by the vehicle data acquisition terminal, and playing related information in a voice mode synchronously, thereby achieving the design aims of multifunction of a single device and display of various information with a display.
Description
Technical field
The utility model relates to the automobile information technical field, relates in particular to a kind of multifunctional solution crystal device.
Background technology
Along with the vehicle information system technology that is the basis with computer technology, satnav and network technology is growing, the information network automobile is ready to appear.The intelligent network automobile is not only a kind of vehicles, and can become the place of office, communication, amusement.Its comprehensive existing hardware and software engineering comprises satellite global location, radio communication, access to netwoks, speech recognition, plane demonstration, night vision technology, artificial neural network and intellectual technology etc.Main function has remote diagnosis and vehicle control function, mobile office function, automobile network address function, road guide function etc.
According to above-mentioned functions; The system of information network automobile mainly is made up of two parts; A part is the internal network system of vehicle itself, and it connects numerous subnet by the In-vehicle networking computer control through data bus; Control engine and other assemblies, plane show to be looked and panel board display, centrally controrlled locking system, wireless telephone etc., and each sub-net all has different clock speeds and function separately.Another part then is the networked system of outside vehicle, comprises GPS (GPS) monitoring center, internet and regional network service provider, vehicle service center, unit or home computer etc.The internal network system side of existing information Web vehicle overweights through the In-vehicle networking computing machine to be controlled other on-vehicle parts or equipment; And the networked system of this internal network system and its outside vehicle can not organically combine, thereby has also limited function performance and application separately.
The function of existing information Web vehicle is more and more abundanter; And the existing vehicle-mounted plane that links to each other with above-mentioned internal network system shows and looks and the panel board display, and deficiency more and more can't satisfy the development need of automobile informationization because its Presentation Function is weak, content displayed is few etc.
The utility model content
In view of this; The fundamental purpose of the utility model is to provide a kind of multifunctional solution crystal device; With the vehicle data acquisition terminal of plugging into, show that said vehicle data acquisition terminal is gathered, that handle with information content output with show the information that this vehicle data acquisition terminal is transmitted; Like note, GPS relevant information and information of vehicles, and relevant information come out with the voice mode synchronous playing.
For achieving the above object, the technical scheme of the utility model is achieved in that
A kind of multifunctional solution crystal device mainly comprises main control module, video decode submodule, phonetic synthesis submodule, serial line interface, external memory card and LCDs; Wherein,
Main control module links to each other with the vehicle data acquisition terminal through serial line interface; Can read or receive the information content that said vehicle data acquisition terminal is gathered and transmitted; And be used to control and adaptive information from video decode submodule and vehicle data acquisition terminal, make it to show through LCDs;
Said video decode submodule; Be used for external vision signal is carried out video conversion; The signal forwarding that to pass through again behind the video decode is given said main control module, and shows with the vehicle data acquisition terminal through LCDs and to send to background server, the function of realization remote monitoring;
Said phonetic synthesis submodule is used for encode Chinese characters for computer is changed into analog voice signal;
Said memory module is used for buffer memory through the picture that said video decode submodule obtains, and also is used for the temporary information that other need buffer memory;
Said external memory card is used to store user's setting information and the non-volatile data message of storage;
Said main control module connects video decode submodule, phonetic synthesis submodule, memory module and LCDs respectively.
Wherein, said video decode submodule further comprises first camera and second camera that are used to shoot with video-corder video, and said camera links to each other with said multifunctional solution crystal device through video cables.
Wherein, said main control module adopts AT91SAM7S26 chip based on ARM7 as microprocessor.
Wherein, said video decode submodule adopts the TVP5150 video decoding chip, and said phonetic synthesis submodule adopts the SYN6288 chipspeech.
Said multifunctional solution crystal device further comprises the Chinese character base that links to each other with said main control module.
Said multifunctional solution crystal device further comprises the external memory card that links to each other with said main control module.
Said external memory card is the SD card.
Said multifunctional solution crystal device further comprises the keyboard that links to each other with said main control module.
Said keyboard is specially button keyboard or capacitive touch control plate.
The multifunctional solution crystal device that the utility model provided has the following advantages:
This utility model liquid crystal indicator; Link to each other with the vehicle data acquisition terminal through serial line interface; Can show the various information contents that the vehicle data acquisition terminal is gathered and transmitted; And can the vision signal that the video decode submodule obtains be shown through LCDs through conversion through main control module; And pass through the functions such as synchronous playing that integrated speech synthon module realizes literal and voice, thus realizing a tractor serves several purposes, the many apparent functions of a screen, the content that satisfies automobile informationization shows needs.
Description of drawings
Fig. 1 is the theory of constitution synoptic diagram of existing vehicle data acquisition terminal;
Fig. 2 is the schematic diagram of the function of the utility model multifunctional solution crystal device;
Fig. 3 is the outside synoptic diagram of the utility model multifunctional solution crystal device;
Fig. 4 is the default display interfaces of LCDs shown in Figure 2;
Fig. 4 a is one of LCDs function interface shown in Figure 2 (part);
Fig. 4 b is two (parts) of LCDs function interface shown in Figure 2;
Fig. 4 c is three (parts) of LCDs function interface shown in Figure 2;
Fig. 4 d is four (parts) of LCDs function interface shown in Figure 2;
Fig. 4 e is five (parts) of LCDs function interface shown in Figure 2;
Fig. 4 f is six (parts) of LCDs function interface shown in Figure 2.
Embodiment
Embodiment below in conjunction with accompanying drawing and the utility model does further detailed explanation to the product of the utility model.
Fig. 1 is the theory of constitution synoptic diagram of existing vehicle data acquisition terminal; As shown in Figure 1; It mainly comprises main control module 100, power management module 101, GPS locating module 102, GPRS (GPRS; General Packet Radio Service) wireless communication module 103, I/O holding circuit 104, local interconnect network (LIN; Local Interconnect Network) EBI 105, controller area net (CAN, Controller Area Network) EBI 106, acceleration transducer 107 and user configuration information memory module 108; Wherein,
Here, this main control module 100 as the master control core component of vehicle data acquisition terminal, has data operation processing, communication, information acquisition, data read and functions such as data storage and judgement.The information of said collection or the data that read; The voltage/current situation of change record that comprises each component unit in the vehicle operating; The position of vehicle movement and temporal information; The relay status of I/O holding circuit; Vehicle acceleration situation of change through the acceleration transducer collection; Be connected into through the LIN bus and obtain the control information that illuminating lamp, seat, car door, air-conditioning, Temperature Humidity Sensor, skylight, control panel and bearing circle etc. belong to the distributed electronic system unit in the vehicle network; Through each subsystem in the CAN bus access vehicle internal networks (as, engine electric-controlled system, automatic transmission control system, anti-lock braking system (ABS), automatic cruising system, OBD and in-vehicle multi-media system etc.) information and working order, and store in the user configuration information memory module comprise information such as human pilot authentication, operation note.This main control module can adopt AT91SAM7S26 chip based on ARM7 as microprocessor.
GPS locating module 102 is for the vehicle data acquisition terminal provides location and time service function;
GPRS wireless communication module 103 for the vehicle data acquisition terminal provides communication function, is used in real time the various data messages of said main control module collection or the vehicle that reads are sent, for the usefulness of remote logging or tracking.
Here; The various data messages of described collection or the vehicle that reads; The information of gathering or reading with described main control module 100 is identical or similar; Difference is that the data message through the GPRS wireless communication module sends is the content after from the information that said main control module 100 reads or gathers, selecting once more as required.Above-mentioned GPS locating module 102 and GPRS wireless communication module 103 can be provided with respectively, also can adopt the TELIT GE863-GPS module that the said two devices function is integrated, and adopt this integrate module, can simplify the development difficulty of wireless product greatly.The master chip AT91SAM7S256 of the utility model vehicle data acquisition terminal and the communication interface of this module are the RS232C interface; The supply voltage of said TELIT is 1.8V; The supply voltage of this master chip AT91SAM7S256 is 3.3V, and it is compatible that middle chip ST3237 through RS232C accomplishes level.
I/O holding circuit 104 adopts relay to connect main control module indirectly, and input and output signal is protected respectively, and promptly input signal is adopted input light-coupled isolation mode, the output signal is adopted self-shield power MOS pipe mode, wherein:
Adopt input light-coupled isolation mode: the level signal of all input main control modules; All be connected to main control chip AT91SAM7S256 through optic coupling element TLP281; Effectively prevent the interference of virtual level signal, also avoided some hashs to get into the device interior of the utility model vehicle data acquisition terminal through the I/O interface;
Adopt output self-shield power MOS pipe mode: the output of the vehicle data acquisition terminal of the utility model is not directly the I/O interface to be connected to external unit; But be connected with external unit through self-shield power MOS pipe VNS1NV04D; Can prevent effectively that electric current is excessive and burn chip, its output is divided into low level and breaks off two states.
Here, said vehicle data acquisition terminal also can connect corresponding input equipment and output device respectively through said I/O holding circuit, with through input equipment, like keyboard, button or touch screen etc. said vehicle data acquisition terminal is operated; Correspondingly; Also can pass through output device; The data message of the information and the vehicle data acquisition terminal of the information of being imported, Operating Guideline being gathered/being read like light emitting diode, charactron or LCDs etc., and GPS cartographic information etc. shows intuitively.
LIN EBI 105; Said vehicle data acquisition terminal can obtain the information that is used to control each functional unit that illuminating lamp, seat, car door, air-conditioning, Temperature Humidity Sensor, skylight (vehicle roof window), control panel and bearing circle etc. are located through LIN EBI visit LIN network.The utility model vehicle data acquisition terminal is through visiting the LIN network through comprising LIN bus chip TJA1020.
CAN EBI 106; Said vehicle data acquisition terminal is through the information and the working order of each subsystem in the CAN EBI visit vehicle internal networks; Said subsystem comprises engine electric-controlled system, automatic transmission control system, anti-lock braking system (ABS), automatic cruising system, OBD (OBD, On-Board Diagnostics) and in-vehicle multi-media system etc.
Here; Described CAN bus be German BOSCH company from the beginning of the eighties for solving a kind of serial data communication agreement that control numerous the Hyundai Motor and the exchanges data between the testing tool are developed; Become the standard agreement of automotive networking at present; It is a kind of multi-master bus, and communication media can be twisted-pair feeder, concentric cable or light transmitting fiber, and its transfer rate can reach 1Mbps.The integrated Physical layer and the data link layer functions of CAN agreement in the CAN EBI can be accomplished the framing of communication data is handled, and comprises that position fillings, data block coding, cyclic redundancy check, priority discrimination etc. work.Adopt CAN controller MCP2515 to visit automotive interior CAN network in the utility model vehicle data acquisition terminal.
User configuration information memory module 108; Parameter list that the utility model vehicle data acquisition terminal need be set and personal identification information stores are at the interior FLASH storer of establishing; In AT45DB161D; Can pass through RS232 interface accessing main control module then, writing said FLASH storer by the AT91SAM7S26 chip of main control module through SPI again is among the AT45DB161D.
Here, said personal identification information can be the steering vehicle personnel, and this authentication information can be used in through the electronic identity recognizer carries out authentication, has authority to start and steering vehicle to authorize through authentication person.
In sum; The external multiple abundant interface of the main control module of this vehicle data acquisition terminal; Can pass through LIN EBI, CAN EBI, acceleration transducer and GPS locating module; Obtain the information and the working order of each subsystem in control information and the vehicle internal networks of relay status, vehicle acceleration situation of change, each distributed electronic system unit of vehicle of position and temporal information, the I/O holding circuit of voltage/current situation of change, the vehicle movement of each component unit in the vehicle operating in real time; And can in time above-mentioned information be sent to receiving end through the interior GPRS wireless communication module of establishing; The real-time follow-up of raising vehicle and understanding vehicle condition variation in time etc. there is great help, the accident reconstruction after helping improving the safety coefficient of vehicle and helping vehicle trouble or traffic accident.
Fig. 2 is the schematic diagram of the function of the utility model multifunctional solution crystal device; As shown in Figure 2; This multifunctional solution crystal device mainly comprises main control module 200 (identical with main control module among Fig. 1 100, only Reference numeral is different), video decode submodule 201, phonetic synthesis submodule 202, memory module 203, serial line interface 204, keyboard 205, Chinese character base 206, external memory card 207 and LCDs 208.Wherein:
Said video decode submodule 201 further links to each other with second camera 2012 with first camera 2011, and said camera all is connected on the female seat of outside BNC of the utility model multifunctional solution crystal device through BNC75 Ω cable; Video decode submodule 201 carries out video conversion in order to the vision signal that said camera is shot with video-corder, and signal forwarding to the said master control display module 200 that will pass through again behind the video decode is handled, and finally shows through said LCDs 208.
In addition, said multifunctional solution crystal device indicates said main control module 200 between the analog video signal that first, second camera is shot with video-corder, to change through the input 1 of serial line interface 204 with the combination of input 2 (logical signal combination, not shown).Can adopt the TVP5150 chip to carry out video decode in the said video decode submodule 201; It passes to said main control module 200 through 8 bit parallel interfaces with dynamic picture; Said main control module 200 is provided with a specific region in memory module 203; Be used for storing and shoot with video-corder the up-to-date width of cloth picture that passage is gathered, and this picture is uploaded to said vehicle data acquisition terminal through the 0x81 agreement through camera.The combination of said input 1 and input 2 signals, following meaning is represented in its various combinations respectively:
Input 1=logical zero, input 2=logical one is changed the analog video stream signal of camera 1;
Input 1=logical one, input 2=logical zero is changed the analog video stream signal of camera 2;
Input 1=logical one, input 2=logical one stops video conversion work, dormancy video decode submodule 201;
Input 1=logical zero, input 2=logical zero, up-set condition, dormancy video decode submodule 201.
For example the demonstration of the utility model realization note, voice broadcast and information storage function are briefly described below:
The vehicle data acquisition terminal is through serial line interface 204; Like the RS232 interface, with 0x81 frame mode note is transmitted to the master control display module 200 of the utility model multifunctional solution crystal device, this note be kept at said external memory card 207 (as; The SD card) on; Then note is transmitted to multifunctional display apparatus, the coding of this note can be transmitted to phonetic synthesis submodule 202 through the UART mouth by master control display module 200, drives loudspeaker 2021 by phonetic synthesis submodule 202 note is read out.Said phonetic synthesis submodule 202 adopts the SYN6288 speech chip.And, can obtain the dot array data of the Chinese character of corresponding short message content through calling Chinese character base 206, write LCDs 208 through I/O mouth simulation parallel port and show short message content synchronously.Here, in a single day note deposits external memory card 207 in, like the SD card, can not be deleted by keyboard operation, and full except the note memory block, the short message that newly arrives covers note the earliest.
Wherein, described 0x81 agreement is the agreement of multifunction LCD and the communication of vehicle data acquisition terminal.The basic format of its protocol frame sees the following form.Multifunction LCD obtains information through this agreement from this data collection station, like vehicle position information, direction, time, short message, temperature etc.Also the information of picture and the telephone number that need dial is sent to this data collection station through this agreement.
| Title | Length (byte) | Describe |
| Frame head | 1 | ?0x81 |
| Data length | 2 | The length of data content, this word most significant digit are made as 1 expression response frame |
| Control byte | 1 | This byte is made as 0 when sending valid data |
| Destination address | 1 | Undetermined |
| Source address | 1 | Undetermined |
| The ID sign | 2 | It can be any value |
| Data content | 0 to 2000 | Data content |
| CRC check | 2 | CRC check with |
The multifunctional solution crystal device of the utility model also has the station reporting instrument function:
This station reporting instrument needs earlier zone position information between the well of website, the encode Chinese characters for computer information stores that gets into the encode Chinese characters for computer information of website and leave website on said SD card.Main control module 200 can obtain the positional information of vehicle in real time from the vehicle data acquisition terminal through serial line interface 204 (like the RS232 interface); And and the website well between district tabulation comparison; When distinguishing between certain well of vehicle entering; The encode Chinese characters for computer information that gets into website is sent to phonetic synthesis submodule 202 (handling through the SYN6288 chipspeech); When vehicle leaves when distinguishing between certain well, the encode Chinese characters for computer information of leaving website is sent to the SYN6288 chip, call out the stops by SYN6288 chip drives loudspeaker 2021.
Here, distinguish between said well, available one comprise stain the rectangular area represent that wherein, stain can be represented website, the rectangular area can use the position coordinates in the lower left corner distinguished between well and the upper right corner to confirm.For example: the website coordinate is (north latitude 31.144541, an east longitude 121.567062); Two position coordinateses distinguishing between so said well then can be set (north latitude 31.144000, east longitude 121.567000) and (north latitude 31.145000, east longitude 121.567100), comprise said website coordinate position and get final product.Here, behind the position coordinates radix point four whenever add 1 and approximately move 2 meters distances.
As one of embodiment, preferred version is that district's data between said well are deposited in the SD card with the TXT file mode, conveniently calls when needing.As shown in the table:
The utility model multifunctional solution crystal device also has the overspeed alarming function:
Its implementation is: existing encode Chinese characters for computer and the prompting encode Chinese characters for computer of being driven over the speed limit in speed limit zone position information, speed limit district of entering speed limit district is stored among the SD; When vehicle gets into the speed limit district; Be that play cuing gets into speed limit district's encode Chinese characters for computer, compare current vehicle speed in real time and limit vehicle speed value, if hypervelocity; Then play the encode Chinese characters for computer of driving over the speed limit in the speed limit district, and remind with voice mode synchronously.Its concrete implementation procedure also is the station reporting instrument scheme of distinguishing between similar employing well, repeats no more here.The TXT listed files that comprises information such as speed limit, hypervelocity zone that it needs is as shown in the table:
The external memory card 207 of the multifunctional solution crystal device of the utility model, like, SD card, mainly in order to canned data, like the commonly used telephone number of short message, site information and some appointments, wherein, telephone number can supply the driver directly to call when needed to dial.This telephone number also is stored in the SD card with the TXT file mode.In addition, this SD be stuck in general operating system (as, need input password when visiting as storage device under XP/Linux), can prevent that unwarranted people from distorting the information in the SD card.
Fig. 3 is the outside synoptic diagram of the utility model multifunctional solution crystal device; As shown in Figure 3; Its central rectangle part is a liquid crystal display area; Right part comprises [affirmation] and [returning] button that establish upper and lower, left and right four direction adjusting key and its underpart, as keyboard 205, is used at each interface directly switching and selects user's content deeply concerned to operate.
Preferably, also can lay capacitive touch screen,, cooperate graphic user interface to accomplish complicated operations with touch control manner as keyboard 205 on the surface of this LCDs.
The user interface of this LCDs; Shown in Fig. 4 and Fig. 4 a～Fig. 4 f; Wherein Fig. 4 is the default subscribers interface, and Fig. 4 a～4f is respectively main (menu) interface, short message interface, phone list interface, temperature list interface, driver ID interface and position coordinates interface.
Wherein, default interface shown in Figure 4 is opened in back 2 minutes in system and is promptly got into this state after the nothing operation, and the information of this interface display, is obtained from the vehicle data acquisition terminal like RS232 through serial line interface 204 by the master control display module.
Main interface by [returning] key, promptly gets into this main interface under above-mentioned default interface.Shown in Fig. 4 a, can choose each submenu at this main interface through the left and right directions key, get into submenu interface separately like short message, phone list, temperature tabulation, driver ID, position coordinates etc.Short message Submenu Items shown in Fig. 4 a is anti-showing, through getting into this short message interface by [affirmation] key, shown in Fig. 4 b.
Under this short message interface, can get into main interface by [returning] key, shown in Fig. 4 b, article one note instead shows, and through operating the short message content that upper and lower directionkeys selection will be checked, checks details by [confirming] key.Can turn back under the former short message interface by [returning] key then.
Equally; Similarly also have phone list interface (contain and call the call state demonstration), temperature list interface, driver ID interface and position coordinates interface with it; The temperature information of above-mentioned interface display, driver's id information and coordinate information obtain through the vehicle data acquisition terminal through serial line interface 204 by main control module 200.
What be worth further specifying is, under said driver ID interface, and can check the current driver of driving ID number, with the checking driver identification, prevent that the driver from obscuring not one's own electron key.
The utility model multifunctional solution crystal device; Also can be used for realizing demonstration and the explicit user configuration information of the information of vehicles that said vehicle data acquisition terminal is gathered through CAN bus, LIN bus, acceleration transducer etc. and video displaying and the broadcast that the utility model obtains through video decode submodule 201; Can also be through electronic chart software to be installed in said memory module 203, the GPS positional information that cooperates said vehicle data acquisition terminal to be obtained realizes GPS navigation of electronic map function.
The above is merely the preferred embodiment of the utility model, is not the protection domain that is used to limit the utility model.
Claims (8)
1. a multifunctional solution crystal device is characterized in that, mainly comprises main control module, video decode submodule, phonetic synthesis submodule, serial line interface, external memory card and LCDs; Wherein,
Main control module links to each other with the vehicle data acquisition terminal through serial line interface; Can read or receive the information content that said vehicle data acquisition terminal is gathered and transmitted; And be used to control and adaptive information from video decode submodule and vehicle data acquisition terminal, make it to show through LCDs;
Said video decode submodule; Be used for external vision signal is carried out video conversion; The signal forwarding that to pass through again behind the video decode is given said main control module, and shows with the vehicle data acquisition terminal through LCDs and to send to background server, the function of realization remote monitoring;
Said phonetic synthesis submodule is used for encode Chinese characters for computer is changed into analog voice signal;
Said memory module is used for buffer memory through the picture that said video decode submodule obtains, and also is used for the temporary information that other need buffer memory;
Said external memory card is used to store user's setting information and the non-volatile data message of storage;
Said main control module connects video decode submodule, phonetic synthesis submodule, memory module and LCDs respectively.
2. multifunctional solution crystal device according to claim 1; It is characterized in that; Said video decode submodule further comprises first camera and second camera that are used to shoot with video-corder video, and said camera links to each other with said multifunctional solution crystal device through video cables.
3. multifunctional solution crystal device according to claim 1 is characterized in that, said main control module adopts AT91SAM7S26 chip based on ARM7 as microprocessor.
4. multifunctional solution crystal device according to claim 2 is characterized in that, said video decode submodule adopts the TVP5150 video decoding chip, and said phonetic synthesis submodule adopts the SYN6288 chipspeech.
5. multifunctional solution crystal device according to claim 1 is characterized in that, said multifunctional solution crystal device further comprises the external memory card that links to each other with said main control module.
6. multifunctional solution crystal device according to claim 5 is characterized in that, said external memory card is the SD card.
7. multifunctional solution crystal device according to claim 1 is characterized in that, said multifunctional solution crystal device further comprises the keyboard that links to each other with said main control module.
8. multifunctional solution crystal device according to claim 7 is characterized in that said keyboard is specially button keyboard or capacitive touch control plate.
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| CN 201020275358 CN202110758U (en) | 2010-07-29 | 2010-07-29 | Multifunctional liquid crystal display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020275358 CN202110758U (en) | 2010-07-29 | 2010-07-29 | Multifunctional liquid crystal display device |
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| CN202110758U true CN202110758U (en) | 2012-01-11 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107045740A (en) * | 2017-03-07 | 2017-08-15 | 吉利汽车研究院（宁波）有限公司 | A kind of car running computer shows system and method |
| CN112822288A (en) * | 2021-01-28 | 2021-05-18 | 广汽丰田汽车有限公司 | Control method of vehicle-mounted air conditioner, vehicle and readable storage medium |
-
2010
- 2010-07-29 CN CN 201020275358 patent/CN202110758U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107045740A (en) * | 2017-03-07 | 2017-08-15 | 吉利汽车研究院（宁波）有限公司 | A kind of car running computer shows system and method |
| CN112822288A (en) * | 2021-01-28 | 2021-05-18 | 广汽丰田汽车有限公司 | Control method of vehicle-mounted air conditioner, vehicle and readable storage medium |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120111 Termination date: 20130729 |