CN201338564Y - Self-adaptive ranging wireless video backing system - Google Patents
Self-adaptive ranging wireless video backing system Download PDFInfo
- Publication number
- CN201338564Y CN201338564Y CNU2008201512878U CN200820151287U CN201338564Y CN 201338564 Y CN201338564 Y CN 201338564Y CN U2008201512878 U CNU2008201512878 U CN U2008201512878U CN 200820151287 U CN200820151287 U CN 200820151287U CN 201338564 Y CN201338564 Y CN 201338564Y
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- circuit module
- wireless video
- video
- rear end
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Abstract
The utility model relates to a self-adaptive ranging wireless video backing system, which comprises a system front end and a system rear end, wherein, the system front end is provided with a front-end mainboard and a display screen; and the system rear end is provided with a rear-end mainboard, a video acquisition circuit module and an ultrasonic probe. The utility model, which has the advantages of simple mounting, less faults and easy maintenance, can superpose and integrate the obstacle distance acquired by the ultrasonic probe and the video signals acquired by a camera and automatically perform adjustment according to one frequency point occupied by a nearby wireless video backing system in order to guarantee a good safety effect of backing.
Description
Technical field
The utility model relates to a kind of backing system, particularly a kind of wireless video backing device of self adaptation range finding.
Background technology
Automobile driver, particularly fresh driver and full size vehicle chaufeur are all paid attention to the safety issue of moveing backward very much.The reversing safety system of automobile generally has two kinds, a kind of is Reverse Sensor, adopts the ultrasonic probe that is installed in the tailstock that obstacle is found range, so that the situation at prompting chaufeur car rear, but can only play simple suggesting effect, chaufeur can't have one to get information about to situation behind the car.Another kind is a back-sight visual system, dependence is installed in the camera of the tailstock and gathers vision signal, show in real time by the read-out in the operator's compartment, obstacle after allowing chaufeur to car has one to get information about, but because the vision signal that camera is gathered has the collimation error even anamorphose, chaufeur is difficult to the actual distance of accurate disturbance in judgement thing and work stall.
The utility model content
The utility model provides the wireless video backing device of a kind of self adaptation range finding, solved the back view that exists in the prior art as yielding, to problem such as error is arranged behind the car.The utility model relates to a kind of wireless video backing device of self adaptation range finding, comprise system front end and system rear end, it is characterized in that: system front end is provided with front end mainboard and read-out, the front end mainboard is provided with the front end microprocessor, 2.4G wireless video receiving circuit module, 315M or 433M transmission circuit module, synchronizing separator circuit module and liquid crystal display drive circuit module, the front end microprocessor respectively with 2.4G wireless video receiving circuit module, 315M or 433M transmission circuit module, the synchronizing separator circuit module is connected with the liquid crystal display drive circuit module, the synchronizing separator circuit module is connected with 2.4G wireless video receiving circuit module with the front end microprocessor respectively, liquid crystal display drive circuit module and read-out, the front end microprocessor is connected with 2.4G wireless video receiving circuit module, the system rear end is provided with the rear end mainboard, video capture circuit module and ultrasonic probe, the rear end mainboard is provided with the rear end microprocessor, the ultrasonic ranging circuit module, the character video frequency laminating module, 315M or 433M receiving circuit module and 2.4G wireless video transmission circuit module, the rear end microprocessor respectively with the ultrasonic ranging circuit module, the character video frequency laminating module, 315M or 433M receiving circuit module are connected with 2.4G wireless video transmission circuit module, the character video frequency laminating module is connected with the video capture circuit module with 2.4G wireless video transmission circuit module respectively, and the ultrasonic ranging circuit module described read-out that is connected with ultrasonic probe is the TFT LCDs.Described video capture circuit module is a camera.Described liquid crystal display drive circuit module is a lcd drive chip.Advantage of the present utility model is: the utility model is installed simple, easy care, can make the situation after chaufeur can be clear that car, also can accurately indicate the distance of car and obstruction and vehicle body, the safety when effectively ensureing reversing.
Description of drawings
Accompanying drawing 1 is the structural representation of system front end of the present utility model,
Accompanying drawing 2 is the structural representation of system of the present utility model rear end,
Accompanying drawing 3 is a principle of work diagram of circuit of the present utility model.
Below in conjunction with drawings and Examples the utility model is elaborated.
The specific embodiment
Comprise system front end 1 and system rear end 2 among the figure, it is characterized in that: system front end 1 is provided with front end mainboard 3 and read-out 4, front end mainboard 3 is provided with front end microprocessor 5,2.4G wireless video receiving circuit module 6,315M or 433M transmission circuit module 7, synchronizing separator circuit module 8 and liquid crystal display drive circuit module 9, front end microprocessor 5 respectively with 2.4G wireless video receiving circuit module 6,315M or 433M transmission circuit module 7, synchronizing separator circuit module 8 is connected with liquid crystal display drive circuit module 9, synchronizing separator circuit module 8 is connected with 2.4G wireless video receiving circuit module 6 with front end microprocessor 5 respectively, liquid crystal display drive circuit module 9 and read-out 4, front end microprocessor 5 is connected with 2.4G wireless video receiving circuit module 6, system rear end 2 is provided with rear end mainboard 10, video capture circuit module 11 and ultrasonic probe 12, rear end mainboard 10 is provided with rear end microprocessor 13, ultrasonic ranging circuit module 14, character video frequency laminating module 15,315M or 433M receiving circuit module 16 and 2.4G wireless video transmission circuit module 17, rear end microprocessor 13 respectively with ultrasonic ranging circuit module 14, character video frequency laminating module 15,315M or 433M receiving circuit module 16 are connected with 2.4G wireless video transmission circuit module 17, character video frequency laminating module 15 is connected with video capture circuit module 11 with 2.4G wireless video transmission circuit module 17 respectively, and ultrasonic ranging circuit module 14 is connected with ultrasonic probe 12.Described read-out 4 is the TFT LCDs.Described video capture circuit module 11 is a camera.Described liquid crystal display drive circuit module 9 is a lcd drive chip.
The utility model is installed on the automobile, and system front end is contained in the operator's compartment, and the system rear end is contained in automobile tail.During reversing, first energized, system front end and system rear end switch on simultaneously.
Ultrasonic probe is connected with microprocessor through the ultrasonic ranging circuit module, and the information that microprocessor is gathered ultrasonic probe is handled, and calculates the distance between obstacle and the vehicle body.The video capture circuit module also is a camera, starts working after the energising, takes the situation at vehicle body rear.The integration that superposes of the obstacle distance information of ultrasonic probe being gathered by microprocessor and video character chip superposed and the video information of camera collection.
After the energising, the front end microprocessor is that 2.4G wireless video receiving circuit module is set initial frequency according to the address code of this covering device, and 315M or 433M acceptor circuit are started working simultaneously, prepares to receive control signal;
If initial frequency does not have occupied (promptly not having other wireless video backing systems using this frequency to carry out transmission over radio), the front end microprocessor sends control command signal by 315M or 433M transmission circuit module; If initial frequency is occupied, the front end microprocessor is set at 2.4G wireless receiving working frequency points with next frequency, move in circles between 4 frequencies, up to finding one not have occupied frequency, the control command signal of front end microprocessor is sent by 315M or 433M transtation mission circuit module;
The 315M of system rear end or 433M receiving circuit module receive the control command signal (having only the system front end of this covering device to control the system rear end) that the front end microprocessor sends, the rear end microprocessor is handled the control command signal that receives, set working frequency points according to control command signal, start 2.4G wireless video transmission circuit module, the 2.4G wireless video acceptor circuit of system front end is received composite video signal.
The synchronizing separator circuit module is carried out separated in synchronization to the composite video signal of receiving, the front end microprocessor is monitored have or not vision signal indication and isolated synchronizing signal that the liquid crystal display drive circuit module provides.If liquid crystal display drive circuit module indication has vision signal, then vision signal is sent on the read-out, and chaufeur can be learnt situation behind the vehicle body from read-out.
Front end microprocessor in a single day note abnormalities (signal disturb or get two or more radio stations at once with frequency), switch frequency at once, send control command signal, the 315M of system rear end or 433M receiving circuit module receive control command signal, the rear end microprocessor is set working frequency points once more according to control command, starts 2.4G wireless video transmission circuit module simultaneously.
The liquid crystal display drive circuit module is a lcd drive chip, can provide driving for TFT LCDs (TFT LCD), provide simultaneously and have or not video high-low level signal indication, provide with special-purpose driving circuit and have or not vision signal to indicate to improve the speed that the utility model enters mode of operation.
Claims (4)
1, a kind of wireless video backing device of self adaptation range finding, comprise system front end and system rear end, it is characterized in that: system front end is provided with front end mainboard and read-out, the front end mainboard is provided with the front end microprocessor, 2.4G wireless video receiving circuit module, 315M or 433M transmission circuit module, synchronizing separator circuit module and liquid crystal display drive circuit module, the front end microprocessor respectively with 2.4G wireless video receiving circuit module, 315M or 433M transmission circuit module, the synchronizing separator circuit module is connected with the liquid crystal display drive circuit module, the synchronizing separator circuit module is connected with 2.4G wireless video receiving circuit module with the front end microprocessor respectively, liquid crystal display drive circuit module and read-out, the front end microprocessor is connected with 2.4G wireless video receiving circuit module, the system rear end is provided with the rear end mainboard, video capture circuit module and ultrasonic probe, the rear end mainboard is provided with the rear end microprocessor, the ultrasonic ranging circuit module, the character video frequency laminating module, 315M or 433M receiving circuit module and 2.4G wireless video transmission circuit module, the rear end microprocessor respectively with the ultrasonic ranging circuit module, the character video frequency laminating module, 315M or 433M receiving circuit module are connected with 2.4G wireless video transmission circuit module, the character video frequency laminating module is connected with the video capture circuit module with 2.4G wireless video transmission circuit module respectively, and the ultrasonic ranging circuit module is connected with ultrasonic probe.
2, the wireless video backing device of a kind of self adaptation range finding as claimed in claim 1, it is characterized in that: described read-out is the TFT LCDs.
3, the wireless video backing device of a kind of self adaptation range finding as claimed in claim 1, it is characterized in that: described video capture circuit module is a camera.
4, the wireless video backing device of a kind of self adaptation range finding as claimed in claim 1, it is characterized in that: described liquid crystal display drive circuit module is a lcd drive chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201512878U CN201338564Y (en) | 2008-07-25 | 2008-07-25 | Self-adaptive ranging wireless video backing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201512878U CN201338564Y (en) | 2008-07-25 | 2008-07-25 | Self-adaptive ranging wireless video backing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201338564Y true CN201338564Y (en) | 2009-11-04 |
Family
ID=41234104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201512878U Expired - Fee Related CN201338564Y (en) | 2008-07-25 | 2008-07-25 | Self-adaptive ranging wireless video backing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201338564Y (en) |
-
2008
- 2008-07-25 CN CNU2008201512878U patent/CN201338564Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091104 Termination date: 20170725 |