CN105365706A - Vehicle signal and power interface transfer system - Google Patents
Vehicle signal and power interface transfer system Download PDFInfo
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- CN105365706A CN105365706A CN201410596720.9A CN201410596720A CN105365706A CN 105365706 A CN105365706 A CN 105365706A CN 201410596720 A CN201410596720 A CN 201410596720A CN 105365706 A CN105365706 A CN 105365706A
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Abstract
The invention relates to a vehicle signal and power interface transfer system, interfaces of the transfer system and a mobile device, and a mobile device for carrying the corresponding interface, and aims at achieving the purpose of reliable connection of the mobile device and a vehicle-mounted device. The mobile device includes but is not limited to a mobile phone, a tablet personal computer, a laptop computer, a GPS, a digital photographing and camera device and a handheld or mobile detecting device. The mobile device can perform real-time backing shooting, driving audio and video recording, audio and video playing, vehicle working condition monitoring and other functions; meanwhile, the mobile device can achieve function expansion through a vehicle device. According to the system, the vehicle-mounted device and the mobile device are effectively combined to use, so that the design is simplified, and the cost can be saved; in addition, the mobile device with high functions can effectively and reliably serve a vehicle driver and passengers.
Description
Technical field
The present invention relates to automobile-used communication technique field, be specifically related to a kind of Vehicular multifunctional mobile device adapting system.
Background technology
Automobile relative closure, external device is difficult to be connected with in-vehicle device, and particularly individual mobile device is popularized on a large scale, numerous car owners user has urgent demand to make in-vehicle device and personal device communications and liaison, display one's respective advantages, be applied to different scene, increase different personalized application.
At present, the approach connecting mobile device in car mainly by the external USB-OTG interface of vehicle-mounted control device or vehicle-mounted computer, realizes charging, voice call, the function of music.Or be connected to horn for vehicle by earphone jack, realize music playback function.The function of present vehicle-mounted computer or vehicle-mounted middle control is very powerful, and senior is usual all with operating system, such as Wince, Android, Linux.Can realize DVD to play, GPS navigation, bluetooth conversation, 3G communicates, and 3G surfs the Net, audio-visual broadcasting, and file stores, reverse image, driving recording, vehicle working condition information inquiry.
But they can only be special onboard, scaling difficulty, and Occupation coefficient is low, poor universality, is not easy to Function Extension, expensive.Simultaneously due to the requirement of car rule, real high definition display and amusement function cannot be realized.In addition functionally with present smart mobile phone, panel computer and notebook removable computer repeat more.And the smart mobile phone that we commonly use, the mobile device functionalities such as panel computer are powerful, and HardwareUpgring is regenerated fast, and software application is enriched, and extendability is strong.But they cannot realize vehicle-mounted partial function, particularly real-time reverse image, driving video-with-audio recording, vehicle working condition monitoring etc. are to driving the function had a significant impact.
Also have some products to use wireless communication protocol, such as WiFi, bluetooth etc. realize interconnecting of mobile device and car machine or vehicle OBD interface.But this connection mode has deficiency in bandwidth sum stability.The bandwidth of bluetooth cannot meet the requirement of transmission of video, but WiFi bandwidth is enough easily subject to environmental concerns, also easily invaded.Inadequate in the safety of the very high vehicle bus application aspect WiFi of safety requirements.
Aforesaid 2 kinds of technology all cannot well make the safe and reliable fast speed of mobile unit and mobile device be connected, how to address this problem? we consider to adopt hardwired physical interface to solve safety and the bandwidth problem of transmission over radio.
Some scheme uses vehicle-mounted middle control or automatic navigator to be connected with mobile device, functionally has a lot of place of repeating, high expensive.Wireless connections are another kind of connection modes, but are wirelessly connected on not as hardware connection mode of the present invention in real-time, and can be interfered and invade, and also cannot complete power supply supply.
Given this, the application is proposed.
Summary of the invention
Therefore main purpose of the present invention is the reliable connectivity problem solving mobile device and mobile unit.Enable mobile device complete real-time reverse image, driving video-with-audio recording, audio and video playing, the functions such as vehicle working condition monitoring, mobile device can utilize vehicle arrangement practical function to expand by the present invention simultaneously.
Technical matters to be solved by this invention realizes by the following technical solutions:
A kind of signals of vehicles and power interface adapting system, comprise a versatile interface, wherein the handshaking of vehicle arrangement and mobile device carries out data transmission by this versatile interface, and described versatile interface comprises functional circuit part, for the microminiature Interface Mobile Devices end of same mobile device connection and the microminiature interface vehicle-mounted end for same mobile unit connection;
Described versatile interface adopts small package surface-mount type socket and the male of 30 pins, adopts 30 pin male plug modes at vehicle end, adopts socket mode at mobile device end; When mobile device is inserted into versatile interface, in order to distinguishing state equipment needs the voltage status of a judgement I/O, when this I/O is driven high, with regard in devices illustrated insertion system, system software in equipment can adjust accordingly, detects I/O and be defined within pin two 0 in functional circuit in versatile interface.
Described mobile device comprises and is not limited to mobile phone, panel computer, notebook removable computer, GPS navigator, digital photography picture pick-up device, hand-held or portable check implement etc.
Described versatile interface is normally built in device housings, directly be welded on the mainboard of equipment, also switching can be realized by external module, 30 pin male plug modes are adopted at vehicle end, mounting means can be varied, takes diversified realizing route according to the different mobile device of different automobile types, also can install the mobile device end of matching standard by normalisation, namely can be fixed on ad-hoc location, confining zone wire terminal pattern also can be adopted to use flexibly;
Described microminiature interface vehicle-mounted end is simulated camera with vehicle-mounted high definition and is connected, the image collection of the real-time reverse image of vehicle and driving recording carries out data acquisition by the high definition simulation camera of front and rear, signal format is generally CVBS, or the analog signals such as component output signal, this part signal directly can upload to equipment end by versatile interface, the coder of equipment end treater can Analog signals, and is encoded into digital stream media formats;
Described microminiature interface vehicle-mounted end controls through CAN and micro controller system and CAN transmission circuit are connected to vehicle interface, collection vehicle work information, vehicle working condition information is provided by the CAN of vehicle, the serial communication network that CAN is a kind of effective support distributed AC servo system or controls in real time, CAN adopts hierarchy, the compatibility between any two nodes of regulation and stipulation; General device end is the adaptable interface not having CAN, so, we need corresponding circuit to carry out adaptation and decoding, again by multifunctional ports information upload to equipment end, this part circuit is by CAN transmission circuit, CAN control circuit and micro controller system and accessory circuit composition, accessory circuit comprises the compositions such as power supply, CAN buffer circuit, clock circuit, filter circuit and watchdog circuit;
Transceiving chip in CAN transmission circuit can adopt the PCA82C250 IC chip of Philips Semiconductor Co., Ltd., this chip is applicable to the high-speed applications (up to 1Mbaud) in automobile, can provide different transmittabilities to bus and provide different receiving capabilities to CAN controller, it meets ISO11898 " standard; Also can adopt the similar chip of other manufacturer production, in order to protection system circuit, improve antijamming capability, between controller circuitry and CAN transceiver, have employed high-speed light every device, the impact of CAN network on system can be eliminated;
CAN controller can adopt the SJA1000 chip of Philips Semiconductor Co., Ltd. or the similar functions chip of other companies, and SJA1000 is the independent CAN controller being applied to automobile and general industry environment.There is the complete characteristic required by CAN communication agreement;
The master controller of CAN can have micro controller system to bear, the 89C51 of usual use atmel corp 51 series, be mainly used in the initialization to CAN controller SJA1000 and equipment end RS232 serial ports, and by realizing the communication tasks such as the data exchange of CAN and equipment end to the control operation of CAN controller SJA1000 and RS232 serial ports.CAN information uploads to equipment end by the RS232 interface in versatile interface, and equipment end does corresponding process again;
Described versatile interface is connected to Vehicle Power by power-switching circuit, 5 volts of power supplys can be provided to mobile device, the 12V power supply of vehicle self is utilized to convert 5V power supply to by power-switching circuit, there is provided power supply by versatile interface to equipment end, power-switching circuit is usually said DC-DC switching power circuit.Lasting charging current can reach 2A;
The sound signal of mobile device can output to vehicle audio system by versatile interface through power amplifier, realize music this locality to play, the local broadcasting of voice call waits audio extension function, this part needs power amplifier, the sound signal of equipment outputs to the input end of power amplifier by versatile interface, power amplifier amplifies the loudspeaker that sound signal outputs to vehicle again, controls the quiet pin of power amplifier with an I/O simultaneously;
The signal that steering wheel for vehicle controls button can upload to mobile device end by versatile interface with other vehicle push button signallings, realize the application program or other settings that control mobile device end, the large class of circuit two of general bearing circle button, a kind of is bus-type, obtained by a microprocessor and process the signal of keyboard circuit, issuing ECU by LIN bus or universal serial bus; Another kind is non-bus-type, is directly judged the key assignments of button by voltage difference between two-wire; The bearing circle key circuit of often kind of vehicle is different, therefore our circuit will have alternative, the single chip circuit of a low cost is used to process keyboard signal, carried out the type of selection key circuit by external wire jumper or switch simultaneously, make micro controller system can jump to different handlers, then export a serial signal to equipment end; The push button signalling of some vehicle is connected in CAN by LIN bus, and aforesaid CAN treatment circuit just can be used to process;
The USB interface of vehicle interior or external COBBAIF can connect outside storage equipment or audio frequency apparatus, these interfaces can be connected to mobile device by versatile interface, thus making mobile device can extend out storage equipment or play external audio frequency, this part circuit directly connects.
The invention has the beneficial effects as follows: the present invention combines the use of mobile unit and mobile device effectively, simplifies design, cost-saving, and the individual intelligent handheld device that function can be made powerful all the more more effectively can reliably serve vehicle driver and passenger.
Accompanying drawing explanation
Fig. 1 is circuit frame schematic diagram of the present invention;
Fig. 2 is versatile interface definition figure of the present invention.
Fig. 3 is principle of the invention block diagram.
Detailed description of the invention
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the present invention further.
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of signals of vehicles and power interface adapting system, comprise a versatile interface, wherein the handshaking of vehicle arrangement and handheld mobile device carries out data transmission by this versatile interface, and described versatile interface comprises functional circuit part, for the microminiature Interface Mobile Devices end of same mobile device connection and the microminiature interface vehicle-mounted end for same mobile unit connection;
Described versatile interface adopts small package surface-mount type socket and the male of 30 pins, adopts 30 pin male plug modes at vehicle end, adopts socket mode at mobile device end; When mobile device is inserted into versatile interface, in order to distinguishing state equipment needs the voltage status of a judgement I/O, when this I/O is driven high, with regard in devices illustrated insertion system, system software in equipment can adjust accordingly, detects I/O and be defined within (the pin two 0 of Fig. 2 in versatile interface.)
Described versatile interface is normally built in device housings, directly be welded on the mainboard of equipment, also switching can be realized by external module, 30 pin male plug modes are adopted at vehicle end, mounting means can be varied, takes diversified realizing route according to the different mobile device of different automobile types, also can install the mobile device end of matching standard by normalisation, namely can be fixed on ad-hoc location, confining zone wire terminal pattern also can be adopted to use flexibly;
Described microminiature interface vehicle-mounted end is simulated camera with vehicle-mounted high definition and is connected, the image collection of the real-time reverse image of vehicle and driving recording carries out data acquisition by the high definition simulation camera of front and rear, signal format is generally CVBS, or the analog signals such as component output signal, this part signal directly can pass through versatile interface (pin two 7 in Fig. 2 and pin two 9) and upload to mobile device end, the coder of mobile device end treater can Analog signals, and is encoded into digital stream media formats;
Described microminiature interface vehicle-mounted end controls through CAN and micro controller system and CAN transmission circuit are connected to vehicle interface, collection vehicle work information, vehicle working condition information is provided by the CAN of vehicle, the serial communication network that CAN is a kind of effective support distributed AC servo system or controls in real time, CAN adopts hierarchy, the compatibility between any two nodes of regulation and stipulation; General device end is the adaptable interface not having CAN, so, we need corresponding circuit to carry out adaptation and decoding, again by multifunctional ports information upload to equipment end, this part circuit is by CAN transmission circuit, CAN control circuit and micro controller system and accessory circuit composition, accessory circuit comprises the compositions such as power supply, CAN buffer circuit, clock circuit, filter circuit and watchdog circuit;
Transceiving chip in CAN transmission circuit can adopt the PCA82C250 IC chip of Philips Semiconductor Co., Ltd., this chip is applicable to the high-speed applications (up to 1Mbaud) in automobile, can provide different transmittabilities to bus and provide different receiving capabilities to CAN controller, it meets ISO11898 " standard; Also can adopt the similar chip of other manufacturer production, in order to protection system circuit, improve antijamming capability, between controller circuitry and CAN transceiver, have employed high-speed light every device, the impact of CAN network on system can be eliminated;
CAN controller can adopt the SJA1000 chip of Philips Semiconductor Co., Ltd. or the similar functions chip of other companies, and SJA1000 is the independent CAN controller being applied to automobile and general industry environment.There is the complete characteristic required by CAN communication agreement;
The master controller of CAN can have micro controller system to bear, the 89C51 of usual use atmel corp 51 series, be mainly used in the initialization to CAN controller SJA1000 and equipment end RS232 serial ports, and by realizing the communication tasks such as the data exchange of CAN and equipment end to the control operation of CAN controller SJA1000 and RS232 serial ports.CAN information uploads to equipment end by RS232 (pin 5 in Fig. 2 and the pin 6) interface in versatile interface, and equipment end does corresponding process again;
Described versatile interface is connected to Vehicle Power by power-switching circuit, 5 volts of power supplys can be provided to mobile device, the 12V power supply of vehicle self is utilized to convert 5V power supply to by power-switching circuit, there is provided power supply by versatile interface to equipment end, power-switching circuit is usually said DC-DC switching power circuit.Lasting charging current can reach 2A;
The sound signal of mobile device can output to vehicle audio system by versatile interface through power amplifier, realize music this locality to play, the local broadcasting of voice call waits audio extension function, this part needs power amplifier, the sound signal of equipment outputs to the input end of power amplifier by versatile interface (pin two 4 of Fig. 2 and pin two 5), power amplifier amplifies the loudspeaker that sound signal outputs to vehicle again, controls the quiet pin of power amplifier with an I/O simultaneously;
The signal of steering wheel for vehicle control button and other vehicle push button signallings can pass through versatile interface (pin 8 of Fig. 2 and pin 9) and upload to mobile device end, realize the application program or other settings that control mobile device end, the large class of circuit two of general bearing circle button, a kind of is bus-type, obtained by a microprocessor and process the signal of keyboard circuit, issuing ECU by LIN bus or universal serial bus; Another kind is non-bus-type, is directly judged the key assignments of button by voltage difference between two-wire; The bearing circle key circuit of often kind of vehicle is different, therefore our circuit will have alternative, the single chip circuit of a low cost is used to process keyboard signal, carried out the type of selection key circuit by external wire jumper or switch simultaneously, make micro controller system can jump to different handlers, then export a serial signal to equipment end.The push button signalling of some vehicle is connected in CAN by LIN bus, and aforesaid CAN treatment circuit just can be used to process;
The USB interface of vehicle interior or external COBBAIF can connect outside storage equipment or audio frequency apparatus, these interfaces can pass through the versatile interface (pin one 1 of Fig. 2, pin one 2 and pin two 2) be connected to mobile device, thus making mobile device can extend out storage equipment or play external audio frequency, this part circuit directly connects.
More than show and describe groundwork of the present invention and principal character and advantage of the present invention.The technical personnel of the industry should be understood; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification sheets just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (5)
1. signals of vehicles and a power interface adapting system, is characterized in that: comprise a versatile interface, wherein the handshaking of vehicle arrangement and mobile device is undertaken by this versatile interface.
2. a kind of signals of vehicles according to claim 1 and power interface adapting system, is characterized in that: described versatile interface comprises functional circuit part, for the microminiature Interface Mobile Devices end of same mobile device connection and the microminiature interface vehicle-mounted end for same mobile unit connection.
3. a kind of signals of vehicles according to claim 2 and power interface adapting system, is characterized in that: described versatile interface adopts small package surface-mount type socket and male, adopts male plug mode, adopt socket mode at mobile device end at vehicle end; When mobile device is inserted into versatile interface, in order to distinguishing state equipment needs the voltage status of a judgement I/O, when this I/O is driven high, with regard in devices illustrated insertion system, system software in equipment can adjust accordingly, detects I/O and be defined within functional circuit in versatile interface.
4. a kind of signals of vehicles according to claim 1 and power interface adapting system, is characterized in that: described mobile device comprises and is not limited to mobile phone, panel computer, notebook removable computer, GPS navigator, digital photography picture pick-up device, hand-held or portable check implement;
Described versatile interface is built in device housings, directly be welded on the mainboard of equipment, also switching can be realized by external module, male plug mode is adopted at vehicle end, mounting means can be varied, takes diversified realizing route according to different automobile types, different mobile device, also can install the mobile device end of matching standard by normalisation, namely can be fixed on ad-hoc location, confining zone wire terminal pattern also can be adopted to use flexibly;
Described microminiature interface vehicle-mounted end is simulated camera with vehicle-mounted high definition and is connected, the image collection of the real-time reverse image of vehicle and driving recording carries out data acquisition by the high definition simulation camera of front and rear, signal format is CVBS, or the analog signals such as component output signal, this part signal directly uploads to equipment end by versatile interface, the coder of equipment end treater can Analog signals, and is encoded into digital stream media formats;
Described microminiature interface vehicle-mounted end controls through CAN and CAN parser circuitry and CAN transmission circuit are connected to vehicle interface, collection vehicle work information, vehicle working condition information is provided by the CAN of vehicle, again by multifunctional ports information upload to mobile device end, this part circuit is made up of CAN transmission circuit, CAN control circuit and CAN parser circuitry and accessory circuit, and described accessory circuit comprises power supply, CAN buffer circuit, clock circuit, filter circuit and watchdog circuit composition;
The sound signal of mobile device can output to vehicle audio system by versatile interface through power amplifier, realize music this locality to play, the local broadcasting of voice call waits audio extension function, this part needs power amplifier, the sound signal of equipment outputs to the input end of power amplifier by versatile interface, power amplifier amplifies the loudspeaker that sound signal outputs to vehicle again, controls the quiet pin of power amplifier with an I/O simultaneously;
The signal that steering wheel for vehicle controls button uploads to mobile device end with other vehicle push button signallings by versatile interface, realize the application program or other settings that control mobile device end, the large class of circuit two of bearing circle button, a kind of is bus-type, obtained by a microprocessor and process the signal of keyboard circuit, issuing ECU by LIN bus or universal serial bus; Another kind is non-bus-type, is directly judged the key assignments of button by voltage difference between two-wire; The bearing circle key circuit of often kind of vehicle is different, circuit will have alternative, the control circuit of a low cost is used to process keyboard signal, carried out the type of selection key circuit by external wire jumper or switch simultaneously, make micro controller system can jump to different handlers, then export a serial signal to equipment end; The push button signalling of some vehicle is connected in CAN by LIN bus, and aforesaid CAN treatment circuit just can be used to process;
The USB interface of vehicle interior or external COBBAIF can connect outside storage equipment or audio frequency apparatus, these interfaces can be connected to mobile device by versatile interface, thus making mobile device can extend out storage equipment or play external audio frequency, this part circuit directly connects.
5. a kind of signals of vehicles according to claim 1 and power interface adapting system, it is characterized in that: described versatile interface is connected to Vehicle Power by power-switching circuit, power supply is provided to mobile device, the power supply of vehicle self is utilized to convert the power supply required for mobile device to by power-switching circuit, power supply is provided to equipment end by versatile interface, power-switching circuit is DC-DC switching power circuit, and lasting charging current can reach 2A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410596720.9A CN105365706A (en) | 2014-10-31 | 2014-10-31 | Vehicle signal and power interface transfer system |
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| CN201410596720.9A CN105365706A (en) | 2014-10-31 | 2014-10-31 | Vehicle signal and power interface transfer system |
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| CN108924170A (en) * | 2018-09-21 | 2018-11-30 | 深圳市领世达科技有限公司 | Vehicle data conversion equipment |
| CN109018116A (en) * | 2018-07-27 | 2018-12-18 | 上海与德科技有限公司 | A kind of control device application method, electric vehicle control system and electric vehicle |
| CN111064880A (en) * | 2020-03-17 | 2020-04-24 | 深圳市中科先见医疗科技有限公司 | Image acquisition device and artificial retina in-vitro device |
| CN113859391A (en) * | 2021-10-13 | 2021-12-31 | 秦皇岛奥卡深软件开发有限公司 | Method for applying new automobile parts by adding automobile type connecting module |
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Application publication date: 20160302 |