CN203739778U - Automobile navigation switchover device - Google Patents
Automobile navigation switchover device Download PDFInfo
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- CN203739778U CN203739778U CN201320794994.XU CN201320794994U CN203739778U CN 203739778 U CN203739778 U CN 203739778U CN 201320794994 U CN201320794994 U CN 201320794994U CN 203739778 U CN203739778 U CN 203739778U
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Abstract
The utility model discloses an automobile navigation switchover device which comprises a switchover module, a navigation module, an automobile backing module, an automobile host computer and a display screen, wherein the switchover module is connected with the navigation module, the automobile backing module, the automobile host computer and the display screen. When the switchover module detects a first control command, the switchover module outputs a simulated automobile backing signal to the automobile host computer so as to connect the navigation module with the video channel of the automobile backing module, and to connect the video channel of the automobile backing module with the display screen; the navigation module outputs a navigation video signal and enters the video channel of the automobile backing module; the display screen displays a navigation video signal transmitted by the video channel of the automobile backing module and enters the navigation state. According to the utility model, the navigation module and the automobile backing module share the display screen, and when navigation is needed, the navigation module occupies the video channel of the automobile backing module through switchover so as to realize playing of a navigation video, the display screen of the original automobile and the video channel of the automobile backing module are fully utilized, the implementation way is simple, and the automobile navigation switchover device is suitable for large batch production.
Description
Technical field
The utility model relates to vehicle mounted guidance technical field, relates in particular to a kind of shifter of auto navigation.
Background technology
Car manufactures, according to the market demand and cost budgeting, designs different functions to different automobile types.For example, some automobile primary function play CD or radio reception, it is controlled telltale and receives vehicle carried video signal playback on telltale.Described telltale is also connected with vehicle-mounted camera, in when reversing, the convenient reversing of vehicle main frame control telltale display automobile scenery behind.Navigation feature is not set in such vehicle main frame.
If conventionally there is following mode when automobile will be set up navigation feature:
1, automobile navigation instrument and the permanent seat of buying band screen, be fixed on automobile navigation instrument on automobile and navigate by permanent seat.Because band screen automobile navigation instrument cost is higher, and its screen is less, and inconvenient user checks route; When it is fixing, may destroy in-vehicle device simultaneously, affect integral layout in car.
2, vehicle main frame (comprising CD/ radio reception module) is replaced by the vehicle main frame with navigation feature.There is problem that can not be compatible or compatible poor in the vehicle main frame which cost is high, newly-increased and former car sound system, destroys former car sound system.
3, adopt LVDS video switch mode.Although which can obtain higher picture quality, because manufacturer's difference, the automobile model of different automobiles are different with the productive year, the video decoding chip adopting is inconsistent.Must carry out independent debugging to every money automobile could mate with its specific video decoding chip, causes work capacity very large, and therefore which compatibility is very poor, can not realize production in enormous quantities.
4, the combination of demoder and navigation.Which can combine accordingly according to different vehicles, and implementation is more flexible.Control but need to increase touch-screen, touch-screen installation inconvenience and cost are higher, affect user and drive when touch control operation, have traffic safety hidden danger.
Therefore, prior art has yet to be improved and developed.
Utility model content
In view of above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide a kind of shifter of auto navigation, when being intended to solve existing band screen automobile and increasing navigation feature cost higher, install inconvenient problem.
In order to achieve the above object, the utility model has been taked following technical scheme:
A shifter for auto navigation, it comprises handover module, navigation module, reversing module, vehicle main frame and read-out; Described handover module connects navigation module, reversing module and vehicle main frame and read-out;
When described handover module detects the first control command, output simulation astern signal, to vehicle main frame, is connected navigation module and the video channel of reversing module is connected with read-out with the video channel of reversing module; Described navigation module output navigation vision signal enters in the video channel of reversing module; Read-out shows the navigation vision signal of the video channel transmission of reversing module, and described vehicle main frame starts simulation reversing mode, enters navigational state.
The shifter of described auto navigation, wherein, also comprises touch-screen, and described navigation module comprises the navigation touch screen interface of the touching signals for receiving touch-screen, and described navigation touch screen interface connects touch-screen by handover module.
The shifter of described auto navigation, wherein, described handover module comprises MCU, the first relay, the second relay, the 3rd relay and the 4th relay; The selection contact of described the first relay connects the power end of the 3rd relay, and the normally closed contact of the first relay connects reversing module, and the open contact of the first relay connects the first output pin of MCU, and the power end of the first relay connects the second output pin of MCU; The selection contact of described the second relay connects touch-screen, and the normally closed contact of the second relay connects vehicle main frame, and the open contact of the second relay connects the navigation touch screen interface of navigation module, and the power end of the second relay connects the 3rd output pin of MCU; The selection contact of the 3rd relay connects read-out, and the open contact of the 3rd relay connects the video channel of reversing module; The selection contact of the 4th relay connects the video channel of reversing module, and the normally closed contact of the 4th relay connects the reversing camera lens of reversing module, and the open contact of the 4th relay connects navigation module, and the power end of the 4th relay connects the 4th output pin of MCU.
The shifter of described auto navigation, wherein, described the first relay, the second relay, the 3rd relay and the 4th relay are single-pole double throw (SPDT) relay.
The shifter of described auto navigation, wherein, the model of described MCU is STM32F100RBT6B.
The shifter of described auto navigation, wherein, described navigation module is navigation box.
Compared to prior art, the utility model is under former car mode of operation, when described handover module detects the first control command, output simulation astern signal, to vehicle main frame, is connected navigation module and the video channel of reversing module is connected with read-out with the video channel of reversing module; Described navigation module output navigation vision signal enters in the video channel of reversing module; Read-out shows the navigation vision signal of the video channel transmission of reversing module, and described vehicle main frame starts simulation reversing mode, enters navigational state; Navigation module and reversing module are shared read-out by the utility model, thereby the video channel that makes navigation module take reversing module by switching need to navigate time realizes the broadcasting of navigation video, it takes full advantage of the read-out of former car and the video channel of reversing module, implementation is simple, is applicable to produce in enormous quantities.
Brief description of the drawings
Fig. 1 is the schematic diagram of the shifter of the utility model auto navigation.
Fig. 2 is the diagram of circuit of the changing method of the shifter of the utility model auto navigation.
Detailed description of the invention
The utility model provides a kind of shifter of auto navigation, for making the purpose of this utility model, technical scheme and effect clearer, clear and definite, below the utility model is further described.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Refer to Fig. 1, the shifter of the auto navigation that the utility model provides comprises: handover module 100, navigation module 200, reversing module 300, vehicle main frame 400 and read-out 500, described handover module 100 connects navigation module 200, reversing module 300, vehicle main frame 400 and read-out 500.
Under former car mode of operation, when described handover module 100 detects the first control command, output simulation astern signal is to vehicle main frame 400, navigation module 200 is connected with the video channel of reversing module 300, and the video channel of reversing module 300 is connected with read-out 500; Described navigation module 200 output navigation vision signals enter in the video channel of reversing module 300; Read-out shows the navigation vision signal of the video channel transmission of reversing module, and described vehicle main frame 400 starts simulation reversing mode, enters navigational state.
Wherein, described navigation module 200 is navigation box (not being with read-out), and described the first control command can be produced by the button on vehicle steering, exports from vehicle main frame 400.The level signal for example, producing when length is pressed (being more than or equal to 3 seconds) MODE key is as the first control command, to realize the switching of navigation video and former car video.
In the specific implementation, the shifter of described auto navigation also comprises power management module, for powering to vehicle main frame.When concrete enforcement, adopt existing power management chip, the present embodiment is not described further this.
Should be understood that, reversing mode is the signal that read-out is play the video channel transmission that is reversing module 300, and this signal shows as the video pictures that reversing camera lens (being automobile camera below) is taken, and this is prior art.And described simulation reversing mode is the pattern that the present embodiment increases, although read-out is play the signal of the video channel transmission that is also reversing module 300, now the video channel of this reversing module 300 disconnects with reversing camera lens, is connected with navigation module.Navigation vision signal enters in the video channel of reversing module 300, and what read-out was play is navigation video.That is to say, under simulation reversing mode, utilize reversing module 300 video channel and navigation module be connected to play navigation video.
Mutual in order to realize man-machine touch, the shifter of described auto navigation also comprises touch-screen 600, described navigation module 200 also comprises the navigation touch screen interface of the touching signals for receiving touch-screen, and described navigation touch screen interface connects touch-screen 600 by handover module 100.Described handover module 100 also for being connected the navigation touch screen interface of navigation module 200 in the time the first control command being detected with touch-screen 500, described touch-screen 500 is exported the mode of operation of touching signals control navigation module 200.Facilitate user's touch-control to select your destination, check guidance path etc.
Under navigational state, and navigation is while finishing, in order to exit navigation mode, is reduced into former car mode of operation, and user can reduce switching by the volume key on bearing circle by length, and vehicle main frame 400 correspondences are exported the second control commands.Described handover module 100 is also controlled vehicle main frame when to the second control command and is connected with read-out; Now described vehicle main frame starts former car pattern, exports former car vision signal and shows to read-out 500, enters former car mode of operation.That is to say and be reduced into the common mode of operation of automobile, under this state, user can play CD or listen to radio station.
Meanwhile, described handover module 100 is also connected vehicle main frame 400 when to the second control command with touch-screen 600, and described touch-screen 600 is exported the mode of operation of touching signals control vehicle main frame, realizes man-machine touch-control under former car mode of operation mutual.
Under navigational state, user can also automatically switch into reversing mode in the time of reversing.While reversing in prior art, can export astern signal (for high level), the present embodiment utilizes this astern signal as navigation---the switching foundation of reversing.Described handover module 100 is transferred to vehicle main frame by described astern signal in the time astern signal being detected, the reversing camera lens of reversing module 300 is connected with its video channel simultaneously.Because the video channel of the module 300 of moveing backward under navigational state is connected with read-out 500, now the reversing camera lens of reversing module 300 is connected with its video channel, reversing camera lens output back-up video signal enters in the video channel of reversing module 300; Described read-out 500 shows back-up video signal, enters reversing state.
In the time that reversing finishes, astern signal becomes low level.In the time that handover module 100 detects low level astern signal, be judged as reversing and finish, its control navigation module 200 is connected with the video channel of reversing module 300, returns to navigational state.
When concrete enforcement, described handover module 100 comprises MCU, the first relay K 1, the second relay K 2, the 3rd relay K 3 and the 4th relay K 4.The selection contact 1 of described the first relay K 1 connects the power end 12 of the 3rd relay, the normally closed contact 2 of the first relay K 1 connects reversing module 300, the open contact 3 of the first relay K 1 connects the first output pin OUT1 of MCU, and the power end 4 of the first relay K 1 connects the second output pin OUT2 of MCU; The selection contact 5 of described the second relay K 2 connects touch-screen 600, the normally closed contact 6 of the second relay K 2 connects vehicle main frame, the open contact 7 of the second relay K 2 connects the navigation touch screen interface of navigation module, and the power end 8 of the second relay K 2 connects the 3rd output pin OUT3 of MCU; Described the 3rd relay K 3 is arranged in vehicle main frame, the selection contact 9 of the 3rd relay K 3 connects read-out 500, it is (not shown that the normally closed contact 10 of the 3rd relay K 3 connects video output unit in vehicle main frame, this video output unit is prior art, be used for exporting former car vision signal), the open contact 11 of the 3rd relay K 3 connects the video channel of reversing module; The selection contact 13 of the 4th relay K 4 connects the video channel of reversing module, the normally closed contact 14 of the 4th relay K 4 connects the reversing camera lens of reversing module, the power end 16 that the open contact 15 of the 4th relay K 4 connects navigation module 200, the four relay K 4 connects the 4th output pin OUT4 of MCU.
Taking the first relay K 1 as example, when the power end 4 of the first relay K 1 is during without electricity (there is no input voltage), the selection contact 1 of the first relay K 1 is connected with its normally closed contact 2.In the time that the power end 4 of the first relay K 1 has electricity (having input voltage), it selects contact 1 to be connected with open contact 3, and normally closed contact 2 disconnects.The principle of work of all the other relays is identical with the first relay K 1.Wherein, described the first relay K 1, the second relay K 2, the 3rd relay K 3 and the 4th relay K 4 are single-pole double throw (SPDT) relay.The model of described MCU is STM32F100RBT6B.
Described reversing module 300 is prior art, and the present embodiment is the improvements of reversing module 300: increase by the 4th relay K 4 and select the reversing camera lens of reversing module 300 to be connected with its video channel, transmission back-up video signal; Or select the video channel of reversing module 300 to be connected with navigation module 200 transmission navigation vision signal.
Please continue to refer to Fig. 1, the principle of work of the shifter of auto navigation described in the present embodiment is:
1, former car mode of operation---> navigational state:
Under former car mode of operation, when press with the head of a household on bearing circle MODE key time, vehicle main frame 400 produces the first control command, when MCU receives this first control command, its first output pin OUT1 output simulation astern signal (high level is effective) gives the open contact 3 of the first relay K 1; Meanwhile, the equal output HIGH voltage of the second output pin OUT2 to the four output pin OUT4 of MCU enters respectively the power end 4,8,16 of the first relay K 1, the second relay K 2, the 4th relay K 4.The first relay K 1, the second relay K 2 and the 4th relay K 4 all electric adhesive.The selection contact 1 of the first relay K 1 is connected with its open contact 3, in simulation astern signal input vehicle main frame 400, then the power end 12 that transfers to the 3rd relay K 3 make the 3rd relay K 3 electric adhesive.The selection contact 5 of the second relay K 2 is connected with its open contact 7, and touch-screen 600 is connected with the navigation touch screen interface of navigation module 200.The selection contact 9 of the 3rd relay K 3 is connected with its open contact 11, and read-out 500 is connected with the video channel of reversing module 300.The selection contact 13 of the 4th relay K 4 is connected with its open contact 15, and navigation module 200 is connected with the video channel of reversing module 300.After above-mentioned switching, the navigation vision signal that described navigation module 200 is exported enters in the video channel of reversing module 300; Read-out 500 shows the navigation vision signal of the video channel transmission of reversing module.Be that described vehicle main frame 400 starts simulation reversing mode, enter navigational state.Touch-screen 500 is exported the mode of operation of touching signals control navigation module 200
2, navigational state---the former car mode of operation of >:
Under navigational state, in the time pressing the volume key on bearing circle with the head of a household, vehicle main frame 400 produces the first control command, when MCU receives this first control command, the equal Non voltage output of its second output pin OUT2 to the four output pin OUT4, is equivalent to power-off.The first relay K 1, the second relay K 2 and the 4th relay K 4 are all reduced into automatic closure state, and the selection contact of each relay is connected with its normally closed contact.Simultaneously, due to now without astern signal (being that astern signal is low level), the 3rd relay K 3 is also reduced into automatic closure state, vehicle main frame 400 connects respectively touch-screen 600 and read-out 500, read-out 500 connects the video output unit (the selection contact 9 of the 3rd relay K 3 is connected with open contact 11) in vehicle main frame, vehicle main frame 400 starts former car pattern, exports former car vision signal and shows to read-out 500, enters former car mode of operation.
3, navigational state---the > state of moveing backward:
Under navigational state, the module of moveing backward in the time that user moves backward 300 can produce an astern signal (high level is effective), when MCU detects this astern signal, its second output pin OUT2 Non voltage output makes the first relay K 1 power-failure close, control vehicle main frame 400 and be connected with reversing module 300, astern signal transfer in vehicle main frame 400, control the 3rd relay K 3 must electric adhesive (the selection contact 9 of the 3rd relay K 3 is connected with open contact 11).The 4th output pin OUT4 Non voltage output of MCU makes the 4th relay K 4 power-failure closes, and the reversing camera lens of controlling reversing module 300 is connected with its video channel.Reversing camera lens output back-up video signal enters in the video channel of reversing module 300.The 3rd output pin OUT3 of MCU keeps current high level output.Now read-out 500 shows back-up video signal, enters reversing state.
In addition, in the time that reversing finishes, astern signal becomes low level, MCU is judged as reversing when this low level detected finishes, the second output pin OUT2 of MCU and the 4th output pin OUT4 output high level, make vehicle main frame 400 obtain simulation astern signal, navigation module 200 is connected with the video channel of reversing module 300, returns to navigational state.
The present embodiment makes full use of the principle of work of relay, obtains adhesive (the selection contact of relay is connected with its open contact) when electric, closure (the selection contact of relay is connected with its normally closed contact) during without electricity.Even handover module 100 faults, above-mentioned relay can be guaranteed the connection mode of former car, can not affect former car function, has greatly improved the stability of product.
Based on the shifter of above-mentioned auto navigation, the utility model also provides a kind of changing method of shifter of auto navigation, and as shown in Figure 2, it comprises step:
S100, under former car mode of operation, in the time that handover module detects the first control command, output simulation astern signal, to vehicle main frame, is connected navigation module and the video channel of the module of moveing backward is connected with read-out with the video channel of reversing module; Described navigation module output navigation vision signal enters in the video channel of reversing module.
Mutual in order to realize man-machine touch, described step S100 also comprises: handover module is connected the navigation touch screen interface of navigation module in the time the first control command being detected with the touch-screen of automobile, the mode of operation of described touch-screen output touching signals control navigation module.
S200, read-out show the navigation vision signal of the video channel transmission of reversing module, and described vehicle main frame starts simulation reversing mode, enters navigational state.
After described step S200, also comprise:
1, navigational state and former car mode of operation switch: under navigational state, control vehicle main frame and be connected with read-out in the time that handover module detects the second control command.Vehicle main frame starts former car pattern, exports former car vision signal and shows to read-out, enters former car mode of operation.In addition, when detecting the second control command, handover module also vehicle main frame is connected to the mode of operation of described touch-screen output touching signals control vehicle main frame with touch-screen.Thereby realize navigation feature and be reduced into the switching of former car function.
2, navigational state and reversing state switch: under navigational state, in the time that handover module detects astern signal, described astern signal is transferred to vehicle main frame, handover module is connected the reversing camera lens of reversing module with its video channel; Reversing camera lens output back-up video signal enters the video channel of reversing module.Described read-out shows back-up video signal, enters reversing state.Thereby the switching between the navigation feature of realization and car-backing function.
In sum, the utility model is under former car mode of operation, output simulation astern signal while the first control command being detected by the MCU of handover module, control each relay switch selector channel simultaneously, make navigation module be connected with the video channel of reversing module and the video channel of reversing module is connected with read-out; Described navigation module output navigation vision signal enters in the video channel of reversing module; Read-out shows the navigation vision signal of the video channel transmission of reversing module, and described vehicle main frame starts simulation reversing mode, enters navigational state; Navigation module and reversing module are shared read-out by the utility model, thereby the video channel that makes navigation module take reversing module by switching need to navigate time realizes the broadcasting of navigation video, it takes full advantage of the read-out of former car and the video channel of reversing module, implementation is simple, is applicable to produce in enormous quantities.In addition, the utility model makes full use of the principle of work of relay, closure (the selection contact of relay is connected with its normally closed contact) during without electricity.Even handover module 100 faults, above-mentioned relay can be guaranteed the connection mode of former car, can not affect former car function, has greatly improved the stability of product.
Should be understood that; application of the present utility model is not limited to above-mentioned giving an example; for those of ordinary skills, can be improved according to the above description or convert, all these improvement and conversion all should belong to the protection domain of the utility model claims.
Claims (6)
1. a shifter for auto navigation, is characterized in that, comprises handover module, navigation module, reversing module, vehicle main frame and read-out; Described handover module connects navigation module, reversing module, vehicle main frame and read-out;
When described handover module detects the first control command, output simulation astern signal, to vehicle main frame, is connected navigation module and the video channel of reversing module is connected with read-out with the video channel of reversing module; Described navigation module output navigation vision signal enters in the video channel of reversing module; Read-out shows the navigation vision signal of the video channel transmission of reversing module, and described vehicle main frame starts simulation reversing mode, enters navigational state.
2. the shifter of auto navigation according to claim 1, is characterized in that, also comprise touch-screen, described navigation module comprises the navigation touch screen interface of the touching signals for receiving touch-screen, and described navigation touch screen interface connects touch-screen by handover module.
3. the shifter of auto navigation according to claim 2, is characterized in that, described handover module comprises MCU, the first relay, the second relay, the 3rd relay and the 4th relay; The selection contact of described the first relay connects the power end of the 3rd relay, and the normally closed contact of the first relay connects reversing module, and the open contact of the first relay connects the first output pin of MCU, and the power end of the first relay connects the second output pin of MCU; The selection contact of described the second relay connects touch-screen, and the normally closed contact of the second relay connects vehicle main frame, and the open contact of the second relay connects the navigation touch screen interface of navigation module, and the power end of the second relay connects the 3rd output pin of MCU; The selection contact of the 3rd relay connects read-out, and the open contact of the 3rd relay connects the video channel of reversing module; The selection contact of the 4th relay connects the video channel of reversing module, and the normally closed contact of the 4th relay connects the reversing camera lens of reversing module, and the open contact of the 4th relay connects navigation module, and the power end of the 4th relay connects the 4th output pin of MCU.
4. the shifter of auto navigation according to claim 3, is characterized in that, described the first relay, the second relay, the 3rd relay and the 4th relay are single-pole double throw (SPDT) relay.
5. the shifter of auto navigation according to claim 3, is characterized in that, the model of described MCU is STM32F100RBT6B.
6. the shifter of auto navigation according to claim 1, is characterized in that, described navigation module is navigation box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320794994.XU CN203739778U (en) | 2013-12-06 | 2013-12-06 | Automobile navigation switchover device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320794994.XU CN203739778U (en) | 2013-12-06 | 2013-12-06 | Automobile navigation switchover device |
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| CN203739778U true CN203739778U (en) | 2014-07-30 |
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| CN201320794994.XU Expired - Lifetime CN203739778U (en) | 2013-12-06 | 2013-12-06 | Automobile navigation switchover device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103625383A (en) * | 2013-12-06 | 2014-03-12 | 广东翼卡车联网服务有限公司 | Switching device and switching method for automobile navigator |
-
2013
- 2013-12-06 CN CN201320794994.XU patent/CN203739778U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103625383A (en) * | 2013-12-06 | 2014-03-12 | 广东翼卡车联网服务有限公司 | Switching device and switching method for automobile navigator |
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Address after: 528133 F3 (F3), C District, southwest garden of Sanshui center science and Technology Industrial Park, Foshan, Guangdong Patentee after: GUANGDONG ECAR TELEMATICS SERVICE Co.,Ltd. Address before: 528133, No. 2, inner ring road, 1 North East Sea Road, Sanshui East Road, Sanshui District, Guangdong, Foshan 303, 204 Patentee before: Guangdong Ecar Telematics Service Co.,Ltd. |
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Granted publication date: 20140730 |