CN204821409U - Vehicle navigation host computer start optimizing system based on CAN bus - Google Patents
Vehicle navigation host computer start optimizing system based on CAN bus Download PDFInfo
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- CN204821409U CN204821409U CN201520549849.4U CN201520549849U CN204821409U CN 204821409 U CN204821409 U CN 204821409U CN 201520549849 U CN201520549849 U CN 201520549849U CN 204821409 U CN204821409 U CN 204821409U
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Abstract
The utility model discloses a vehicle navigation host computer start optimizing system based on CAN bus, including CAN bus and signal generation unit and vehicle navigation host computer, signal generation unit is used for producing automobile body data signal, the CAN bus is used for producing CAN bus data under automobile body data signal's of the triggering, the vehicle navigation host computer includes the CAN transceiver, little the control unit, the power modul, and CPU and other functional modules, wherein, the CAN transceiver is used for converting the CAN bus data who comes from the CAN bus who receives into serial ports data and IO mouth level signal, and send little the control unit with serial ports data and IO mouth level signal, little the control unit is used for opening power module or keeping power module to be in the state of opening according to the IO mouth level signal who comes from the CAN transceiver, power module is used for controlling electricity on CPU and other functional modules, makes the start of vehicle navigation host computer or keeps the start state. The utility model discloses start speed has been promoted on the basis that does not promote the cost.
Description
Technical field
The utility model relates to vehicle mounted guidance field, particularly relates to a kind of vehicle mounted guidance main frame based on CAN start optimization system.
Background technology
Along with the development of automobile electronics is rapid, the frequency of utilization of onboard navigation system is more and more higher.Traditional vehicle mounted guidance main frame is based on WIN-CE system, its CPU backwardness relatively, do not support that WIFI surfs the Net, and the application program that can install is less.Based on the vehicle mounted guidance main frame of Android system because it is open, ease for use, add UI attractive in appearance and can customize desktop, the advantages such as abundant software resource, free popular application, make its share of market more and more higher.
But at present based in the vehicle mounted guidance main frame of Android system, because needs could start power module when lighting a fire, and then vehicle mounted guidance main frame could be started, therefore there is the slow problem of start.Starting up speed at present based on the vehicle mounted guidance main frame of Android system is about 10-30 second, reaches the starting up speed of 5-15 second, then must adopt fireballing CPU, cause higher productive costs if want.
Utility model content
The purpose of this utility model is to start shooting slow defect for the existing vehicle mounted guidance main frame based on Android system, provides a kind of vehicle mounted guidance main frame based on CAN to start shooting optimization system.
The utility model is in order to solve the problems of the technologies described above, the technical scheme adopted is: a kind of start of the vehicle mounted guidance main frame based on CAN optimization system, comprise CAN and be electrically connected at the signal generation unit of described CAN and the vehicle mounted guidance main frame based on Android system, described signal generation unit is for generation of vehicle body data-signal, described CAN is used for producing CAN data under the triggering of described vehicle body data-signal, described vehicle mounted guidance main frame comprises CAN transceiver, be coupled in the micro-control unit of described CAN transceiver, be coupled in the power module of described micro-control unit, and be coupled in CPU and other functional modules of described micro-control unit and described power module, wherein, described CAN transceiver is used for the described CAN data from described CAN received to be converted to serial data and I/O mouth level signal, and described serial data and described I/O mouth level signal are sent to described micro-control unit, described micro-control unit is used for, according to the described I/O mouth level signal from described CAN transceiver, opening described power module or keeping described power module to be in opening, described power module, for controlling described CPU and other functional modules described power on, makes described vehicle mounted guidance main frame start shooting or keeps open state.
Preferably, described vehicle mounted guidance main frame also comprises: state detection module, be coupled in described micro-control unit, when lighting a fire for getting on the bus user, detect the state of described vehicle mounted guidance main frame, if described vehicle mounted guidance main frame is in opening, then sends status signal to described micro-control unit, controlled to open other modules according to described status signal by described micro-control unit.
Preferably, described CAN data are sent to described micro-control unit by the serial ports of described CAN transceiver, and by the I/O mouth of described CAN transceiver, described CAN data mode are informed described micro-control unit.
Preferably, described CAN transceiver is the CAN transceiver having bus arousal function and wake mark output up, and model is TJA1041.
Implement the utility model embodiment, there is following beneficial effect: the start of the vehicle mounted guidance main frame based on the CAN optimization system provided by the utility model, produce data when vehicle is unblanked by CAN and carry out backstage start to trigger micro-control unit controls navigation host, when user gets on the bus igniting, navigation host has been started shooting 5-20 time second, achieve the function that navigation host is started shooting in advance, the basis not promoting cost improves starting up speed; In addition, in use, as long as CAN has data, navigation host is just in wake-up states, if user stops working after vehicle always, before the complete dormancy of vehicle, (in about 2-5 minute) strikes sparks once more, navigation host backstage is keep open state in fact always, at this time vehicle sparking, and main frame start directly enters main interface, user feels that the main frame on time is 0 second, greatly improves user's experience.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in the accompanying drawings:
Fig. 1 is the structural representation of the start of the vehicle mounted guidance main frame based on the CAN optimization system that the utility model one embodiment provides;
Fig. 2 is the structural representation of the start of the vehicle mounted guidance main frame based on the CAN optimization system that another embodiment of the utility model provides;
Fig. 3 is the operating process diagram of circuit of the start of the vehicle mounted guidance main frame based on the CAN optimization system that the utility model embodiment provides.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Fig. 1 is the structural representation of the vehicle mounted guidance main frame boot system 100 based on CAN that the utility model one embodiment provides.The vehicle mounted guidance main frame boot system that the utility model provides is for the vehicle mounted guidance main frame based on Android system.As shown in Figure 1, boot system 100 comprises CAN 110 and is electrically connected at signal generation unit 120 and the vehicle mounted guidance main frame 130 of CAN 110.In this embodiment, signal generation unit 120 produces vehicle body data-signal, CAN 110 produces CAN data under the triggering of vehicle body data-signal, vehicle mounted guidance main frame 130 receives the CAN data that CAN 110 produces, and starts shooting under the triggering of CAN data or keep open state.
In the utility model one embodiment, due to only need by the CAN data-triggered vehicle mounted guidance main frame 130 in CAN 110, therefore, in use, as long as CAN 110 has data, then vehicle mounted guidance main frame 130 be in open state always.Vehicle body data-signal includes but not limited to: unlocking signal, speed signal, left direction signal, right steering signal, dipped beam signal, distance light signal, audible warning, brake signal, astern signal, ACC (key door switch) status signal etc.
Specifically, in the utility model one embodiment, for vehicle body data-signal for unlocking signal, when user's car, when distance vehicle certain distance, can withdraw a garrison to vehicle, vehicle is unblanked, wake vehicle up, now, vehicle body control unit produces unlocking signal, under the triggering of unlocking signal, CAN 110 produces CAN data, vehicle mounted guidance main frame 130 receives the CAN data that CAN 110 produces, and starts shooting under the triggering of CAN data.In another embodiment of the utility model, for vehicle body data-signal for ACC status signal, arrive the complete dormancy of vehicle after vehicle extinguishing before (such as, in 2-5 minute) a period of time in, ACC state detection module detects that vehicle is in ACC closed condition, produce ACC closed condition signal, under the triggering of ACC closed condition signal, CAN 110 continues produce CAN data, vehicle mounted guidance main frame 130 receives the CAN data that CAN 110 produces, and continues to keep backstage open state under the triggering of CAN data.
Fig. 2 is the structural representation of the vehicle mounted guidance main frame boot system 200 based on CAN that another embodiment of the utility model provides.As shown in Figure 2, in this embodiment, vehicle mounted guidance main frame 130 comprises CAN transceiver 132, is coupled in the micro-control unit 134 of CAN transceiver 132, is coupled in the power module 136 of micro-control unit 134 and is coupled in CPU140 and other functional modules 150 of micro-control unit 134 and power module 136.
CAN transceiver 132 and CAN 110 are electrically connected mutually, for the CAN data from CAN 110 received are converted to serial data and I/O mouth level signal sends to micro-control unit 134, realize the communication of vehicle mounted guidance main frame 130 and CAN 110.Micro-control unit 134 is for the I/O mouth level signal of basis from CAN transceiver 132, and power-on module 136 keeps power module 136 to be in opening.Power module 136 powers on for control CPU140 and other functional modules 150, makes vehicle mounted guidance main frame 130 start shooting or keep open state.Specifically, CAN transceiver 132 for there is bus arousal function and wake up mark export CAN transceiver (such as, TJA1041), the CAN data from CAN 110 can be received when CAN 110 is waken up, and CAN data are converted to the serial data and I/O mouth level signal that micro-control unit 134 can identify, and by the I/O mouth of CAN transceiver 132, CAN data mode is informed micro-control unit
Preferably, in the utility model one embodiment, vehicle mounted guidance main frame 130 also comprises the state detection module 138 being coupled in micro-control unit 134, when lighting a fire for getting on the bus user, detect the state of vehicle-mounted navigation host 130, if vehicle mounted guidance main frame 130 is in the state of ACCON, then send status signal to micro-control unit 134, controlled to open other modules (such as, read-out, audio-frequency module etc.) according to status signal by micro-control unit 134.
Advantageously, by the vehicle mounted guidance main frame boot system based on CAN that the utility model provides, produce data when vehicle is unblanked by CAN and carry out backstage start to trigger micro-control unit controls navigation host, when user gets on the bus igniting, navigation host has been started shooting 5-20 time second, achieve the function that navigation host is started shooting in advance, the basis not promoting cost improves starting up speed; In addition, in use, as long as CAN has data, navigation host is just in wake-up states, if user stops working after vehicle always, before the complete dormancy of vehicle, (in about 2-5 minute) strikes sparks once more, navigation host backstage is keep open state in fact always, at this time vehicle sparking, and main frame start directly enters main interface, user feels that the main frame on time is 0 second, greatly improves user's experience.
The workflow diagram 300 of the vehicle mounted guidance main frame boot system based on CAN that Fig. 3 provides for the utility model one embodiment.The vehicle mounted guidance main frame starting-up method that the utility model provides is for the vehicle mounted guidance main frame based on Android system.As shown in Figure 3, the workflow diagram 300 based on the vehicle mounted guidance main frame boot system of CAN comprises the following steps.
Step S302: signal generation unit produces vehicle body data-signal.
Vehicle body data-signal includes but not limited to: unlocking signal, speed signal, left direction signal, right steering signal, dipped beam signal, distance light signal, audible warning, brake signal, astern signal, ACC (key door switch) status signal etc.
Step S304:CAN bus produces CAN data under the triggering of vehicle body data-signal.
Step S306: the CAN transceiver on vehicle mounted guidance main frame receives the CAN data from CAN, and CAN data is converted to serial data and I/O mouth level signal, is sent to micro-control unit.
Particularly, in the utility model one embodiment, the CAN transceiver on vehicle mounted guidance main frame is the CAN transceiver (such as, TJA1041) having bus arousal function and wake mark output up.
Step S308: micro-control unit receives from the serial data of CAN transceiver and I/O mouth level signal, power-on module or keep power module to be in opening.
Particularly, in the utility model one embodiment, serial data is sent to micro-control unit by the I/O interface of CAN transceiver.
Step S310: powered on by power module control CPU and other functional modules, makes vehicle mounted guidance main frame start shooting or keeps open state.
Particularly, for vehicle body data-signal for unlocking signal, the vehicle mounted guidance main frame starting-up method based on CAN of the present invention is described.When user's car, when distance vehicle certain distance, by remote control equipment (RCE), vehicle is withdrawn a garrison, vehicle is unblanked, wakes vehicle up, now, vehicle body control unit produces unlocking signal; Under the triggering of unlocking signal, CAN produces CAN data; CAN data from CAN are converted to the serial data and I/O mouth level signal that micro-control unit can identify by CAN transceiver, and by serial ports, serial data and I/O mouth level signal are sent to micro-control unit; Micro-control unit, according to I/O mouth level signal power-on module, is powered on by power module control CPU and other functional modules, vehicle mounted guidance main frame is started shooting; When user gets on the bus igniting, state detection module detects that vehicle mounted guidance main frame is in the state of ACCON, send status signal to micro-control unit, controlled to open other modules (such as, read-out, audio-frequency module etc.) according to status signal by micro-control unit
Advantageously, by the vehicle mounted guidance main frame starting-up method based on CAN that the utility model provides, produce data when vehicle is unblanked by CAN and carry out backstage start to trigger micro-control unit controls navigation host, when user gets on the bus igniting, navigation host has been started shooting 5-20 time second, achieve the function that navigation host is started shooting in advance, the basis not promoting cost improves starting up speed; In addition, in use, as long as CAN has data, navigation host is just in wake-up states, if user stops working after vehicle always, before the complete dormancy of vehicle, (in about 2-5 minute) strikes sparks once more, navigation host backstage is keep open state in fact always, at this time vehicle sparking, and main frame start directly enters main interface, user feels that the main frame on time is 0 second, greatly improves user's experience.
Above disclosedly be only a kind of preferred embodiment of the utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. the start of the vehicle mounted guidance main frame based on a CAN optimization system, comprise CAN (110) and be electrically connected at the signal generation unit (120) of described CAN (110) and the vehicle mounted guidance main frame (130) based on Android system, it is characterized in that, described signal generation unit (120) is for generation of vehicle body data-signal, described CAN (110) for producing CAN data under the triggering of described vehicle body data-signal, described vehicle mounted guidance main frame (130) comprises CAN transceiver (132), be coupled in the micro-control unit (134) of described CAN transceiver (132), be coupled in the power module (136) of described micro-control unit (134), and be coupled in CPU (140) and other functional modules (150) of described micro-control unit (134) and described power module (136), wherein, described CAN transceiver (132) is for being converted to serial data and I/O mouth level signal by the described CAN data from described CAN (110) received, and described serial data and described I/O mouth level signal are sent to described micro-control unit (134), described micro-control unit (134), for according to the described I/O mouth level signal from described CAN transceiver (132), is opened described power module (136) or is kept described power module (136) to be in opening, described power module (136), for controlling described CPU (140) and other functional modules described (150) power on, makes described vehicle mounted guidance main frame (130) start shooting or keeps open state.
2. vehicle mounted guidance main frame start optimization system according to claim 1, it is characterized in that, described vehicle mounted guidance main frame (130) also comprises:
State detection module (138), be coupled in described micro-control unit (134), when lighting a fire for getting on the bus user, detect the state of described vehicle mounted guidance main frame (130), if described vehicle mounted guidance main frame (130) is in opening, then send status signal to described micro-control unit (134), controlled to open other modules according to described status signal by described micro-control unit (134).
3. vehicle mounted guidance main frame start optimization system according to claim 1, it is characterized in that, described CAN data are sent to described micro-control unit (134) by the serial ports of described CAN transceiver (132), and by the I/O mouth of described CAN transceiver (132), described CAN data mode are informed described micro-control unit (134).
4. vehicle mounted guidance main frame start optimization system according to claim 1, it is characterized in that, described CAN transceiver (132) is the CAN transceiver having bus arousal function and wake mark output up, and model is TJA1041.
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| CN201520549849.4U CN204821409U (en) | 2015-07-27 | 2015-07-27 | Vehicle navigation host computer start optimizing system based on CAN bus |
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| CN201520549849.4U CN204821409U (en) | 2015-07-27 | 2015-07-27 | Vehicle navigation host computer start optimizing system based on CAN bus |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105763407A (en) * | 2016-04-18 | 2016-07-13 | 深圳市迪瑞特科技有限公司 | Automobile CAN protocol board |
| CN107554451A (en) * | 2017-08-30 | 2018-01-09 | 安徽江淮汽车集团股份有限公司 | A kind of full-color screen combined instrument starting up method and system |
| CN107681707A (en) * | 2016-10-17 | 2018-02-09 | 深圳市东方之星电源有限公司 | A kind of automobile and automobile power supply system dormancy control circuit |
| CN108614500A (en) * | 2018-06-22 | 2018-10-02 | 北京科东电力控制系统有限责任公司 | Electric vehicle monitoring device and electric vehicle |
| CN111212357A (en) * | 2018-11-22 | 2020-05-29 | 广州汽车集团股份有限公司 | Method and device for controlling sound system |
-
2015
- 2015-07-27 CN CN201520549849.4U patent/CN204821409U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105763407A (en) * | 2016-04-18 | 2016-07-13 | 深圳市迪瑞特科技有限公司 | Automobile CAN protocol board |
| CN107681707A (en) * | 2016-10-17 | 2018-02-09 | 深圳市东方之星电源有限公司 | A kind of automobile and automobile power supply system dormancy control circuit |
| CN107554451A (en) * | 2017-08-30 | 2018-01-09 | 安徽江淮汽车集团股份有限公司 | A kind of full-color screen combined instrument starting up method and system |
| CN108614500A (en) * | 2018-06-22 | 2018-10-02 | 北京科东电力控制系统有限责任公司 | Electric vehicle monitoring device and electric vehicle |
| CN111212357A (en) * | 2018-11-22 | 2020-05-29 | 广州汽车集团股份有限公司 | Method and device for controlling sound system |
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