CN204279227U - Host-free parking auxiliary system - Google Patents
Host-free parking auxiliary system Download PDFInfo
- Publication number
- CN204279227U CN204279227U CN201320886304.3U CN201320886304U CN204279227U CN 204279227 U CN204279227 U CN 204279227U CN 201320886304 U CN201320886304 U CN 201320886304U CN 204279227 U CN204279227 U CN 204279227U
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Abstract
The utility model discloses a kind of host-free parking auxiliary system, this system comprises multiple digital sensor being arranged on the parallel connection of vehicle body, each digital sensor common source line, ground wire and communication data line, power lead is connected with automotive ignition power supply, and communication data line is connected with vehicle body audio amplifier.Establish power circuit, communicating circuit in digital sensor, ID identification circuit, launch driving circuit, piezoceramic transducer, signal computing circuit and micro controller system.Power circuit is connected by transmission line with automotive ignition power supply, communicating circuit and wire harness and microcontroller communication, launch driving circuit input end to be connected with micro controller system respectively with signal computing circuit mouth, piezoceramic transducer input end is connected with transmitting driving circuit mouth, piezoceramic transducer mouth is connected with computing intensifier circuit input end, ID identification circuit input end is connected with body harness is polymorphic, and mouth is connected with micro controller system.The utility model has wiring easy for installation, and control signal is stablized, and cost is low.
Description
Technical field
The utility model relates to the control technology of vehicle subsystem, is specifically related to a kind of host-free parking auxiliary system.
Background technology
In vehicle parking process, generally navigating mate is pointed out to park the relevant informations such as distance, to reach the object of safe driving by audible alarm or mode such as distance display etc.Existing super sonic parking assisting system is primarily of the composition such as sensor, main frame, audible alarm unit, distance display unit, power circuit and automobile interface.Wherein require that sensor is laid in outside the vehicle body of automobile, such as, before and after on safety lever or on the vehicle body of side, main frame is then located in car.Such project organization often has the following disadvantages: 1. the number of probes owing to using is more, and compares dispersion, and the general modes of connection such as directly connection, four-wire system, three wire system and two-wire system that adopt carry out wiring, and wiring construction is complicated; 2. steady signal transmission is poor; 3. with main frame, and the Signal transmissions of sensor and main frame and power feed complex structure, cost is high.
Utility model content
The utility model is intended to solve that complex structure in existing parking assisting system, cost are high, the problem of steady signal transmission difference.
The utility model provides following technical scheme:
The utility model host-free parking auxiliary system, comprise multiple digital sensor being arranged on the parallel connection of vehicle body, each digital sensor common source line, ground wire and communication data line, described power lead is connected with automotive ignition power supply, and described communication data line is connected with vehicle body audio amplifier.
The beneficial effects of the utility model: native system adopts multiple digital sensor common source line, ground wire and communication data line, multiple sensor is independent co-ordination under off host state of a control, owing to there being one piece of micro controller system can the calculating of complete independently distance in digital sensor, encode after calculating, after wherein any one simulation master control sensor gathers calculating, by single line mode TTL digital signal to vehicle body, vehicle body only needs the signal transmitted according to sensor to drive vehicle body sound equipment to report to the police accordingly.
1) System's composition is simple: adopt off host mode to work, system is only made up of multiple sensor and wire harness, single line is adopted again to connect between multiple sensor, significantly reduce wiring quantity, traditional Reverse Sensor all adopts rigid line to connect, and average each sensor needs three wire harness, if assemble four sensors namely need ten two-lines bundles, the utility model four sensors only need four wire harness, and eliminate main frame, enormously simplify system architecture.
2) stable performance: owing to all adopting digital communication, reliability is high, antijamming capability is strong, and all analog signals all complete process in sensor, and stability is high.
3) system intelligent degree is high: because digital sensor self is a device with treater, the judgement conversion of range signal can be completed voluntarily, self carries out obstacle distance calculating, simulation master control sensor is aggregated into by digital encoding scheme, single line bundle between sensor is adopted to connect, original host computer control is become sensor utonomous working, and improving performance significantly can reduce system cost simultaneously, strengthens system self ability.Each sensor is independently system, can as simulation master control sensor, and intelligence degree is high.
4) steady signal transmission: owing to being provided with signal intensifier circuit in digital sensor, digital sensor adopts TTL digital communication, and inside has temperature-compensation circuit, and remained shock enhances the quality of signal while reducing.
5) install more convenient: due to off host, system is only made up of multiple sensor, and without the need to fixedly mounting main frame, and wire harness also greatly reduces, in installation wiring process, eliminate plenty of time and cost.
Further, described digital sensor inside includes communicating circuit, micro controller system, launch driving circuit, piezoceramic transducer, signal demodulator circuit, amplify arithmetical circuit, bandwidth-limited circuit, collecting electrode amplifying circuit, one ID identification circuit, 2nd ID identification circuit and power circuit, power circuit input end is connected with automotive ignition power supply by wire harness, one ID identification circuit input end is connected with vehicle body communication wire harness, one ID identification circuit mouth is connected with micro controller system, 2nd ID identification circuit input end is connected with vehicle body priming supply wire harness, 2nd ID identification circuit mouth is all connected with micro controller system with an ID identification circuit input end, communicating circuit and vehicle body communication wire harness and microcontroller communication, the mouth of micro controller system is connected with transmitting driving circuit, the mouth launching driving circuit is connected with piezoceramic transducer, the mouth of piezoceramic transducer is connected with the input end receiving amplifying circuit, the mouth receiving amplifying circuit is connected with bandwidth-limited circuit, bandwidth-limited circuit mouth is connected with collecting electrode input amplifier, collecting electrode amplification circuit output end connects micro controller system.
This digital sensor principle of work is as follows: when vehicle body priming supply is connected, internal communication is started between digital sensor, No. ID, Intelligent Recognition, as, 0X01,0X02,0X03,0X04 produce ID successively at random, and appoint one of them No. ID for simulation master control sensor, realize other sensors of parallel control; ID identifies and only to power on execution in system first time each time, after ID identifies, sensor has had oneself id number respectively, until more emat sensor or fail self-test, second time electrifying system is by with fixing id number and simulation master control sensor communication, and after ID identifies, each sensor will carry out OBD (On-Board Diagnostics), if appointed master control sensor failure, system incites somebody to action identification id again; ID can simulate master control sensor and send startup command to start the super sonic that characteristic frequency launched by digital sensor after identifying, and what process digital sensor returns parallel signal, the distance of disturbance in judgement thing is carried out by micro controller system, simulation master control sensor judges it is which digital sensor signal out by the difference of address, and now digital sensor is just sent to vehicle body loudspeaker by digitally coded communication modes alerting signal.
Further, a described ID identification circuit input end is connected with vehicle body, to provide obstacle alarm message to vehicle body.
Accompanying drawing explanation
Fig. 1 is the wiring schematic diagram of the utility model host-free parking auxiliary system embodiment;
Digital sensor internal circuit blocks figure in Fig. 2 Fig. 1 embodiment.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
Be illustrated in figure 1 the interconnecting wiring diagram that the present embodiment adopts four ultrasonic ranging digital sensors, comprise the ultrasonic ranging digital sensor 1 that four are arranged on the parallel connection of vehicle body, each ultrasonic ranging digital sensor 1 common source line 2, ground wire 3 and communication data line 4, power lead 2 is connected with automotive ignition power supply, communication data line 4 is connected with vehicle body audio amplifier, four ultrasonic ranging digital sensors are connected by a transmission line, realize mobility type analogy host computer control, send alert data to car body controller 5 by mobility type analogy main frame.
As shown in Figure 2, what be connected with ultrasonic ranging digital sensor has vehicle body communicating circuit 101 and vehicle body priming supply 102, is provided with power circuit 111, an ID identification circuit 112, the 2nd ID identification circuit 113, communicating circuit 114, micro controller system 115, launches driving circuit 116, piezoceramic transducer 117, signal demodulator circuit 118, amplifies arithmetical circuit 119, bandwidth-limited circuit 120, collecting electrode amplifying circuit 121 in ultrasonic ranging digital sensor.
Power circuit 111 provides power supply for digital sensor.ID identification circuit one end is connected with communicating circuit wire harness, realizes Multi-sensor parallel, and other end one end is connected with vehicle body power/ground, realizes the heading code that different sensors is different.One ID identification circuit 112 and the 2nd ID identification circuit 113 are the address recognition circuit systems between multiple sensor.One ID identification circuit 112 and the 2nd ID identification circuit 113 mouth connect micro controller system 115 respectively, by micro controller system 115 identification id address code.Communicating circuit 114 is that sensor sends signal circuit to vehicle body.Communicating circuit 114 input end is by single line and Multi-sensor parallel, be connected with vehicle body by single line simultaneously, communicating circuit 112 mouth is by input micro controller system 115 after collecting electrode amplifying circuit 121, micro controller system 115 outputting communication signal is incorporated to communication wire harness after collecting electrode amplifying circuit 121, micro controller system 115 output drive signal is to launching driving circuit 116 simultaneously, launch driving circuit 116 to be made up of collecting electrode amplifying circuit and miniature booster, being raised by the drive singal needed for piezoceramic transducer 117 is that ten times of micro controller systems export.Piezoceramic transducer 117 is made up of sensor and equalizer circuit, system arranges compensation according to different sensor parameters, the mouth of piezoceramic transducer 117 is connected with signal demodulator circuit 118 input end, signal demodulator circuit 118 mouth is connected with the input end of operational amplification circuit 119, operational amplification circuit 119 mouth tape splicing bandpass filter circuit 120 input end, bandwidth-limited circuit 120 mouth is connected with collecting electrode amplifying circuit 121, collecting electrode amplifying circuit 121 is made up of signal amplitude limiting circuit and collecting electrode amplifying circuit, collecting electrode amplifies output 121 and connects micro controller system 115, micro controller system 115 sends the data after calculating to parallel communication data line, determined whether to need to send alert data by simulation master control sensor.
Above-described is only preferred implementation of the present utility model; should be understood that; for a person skilled in the art; under the prerequisite not departing from the utility model structure; some distortion and improvement can also be made; these also should be considered as protection domain of the present utility model, and these all can not affect effect and the practical applicability of the utility model enforcement.
Claims (3)
1. host-free parking auxiliary system, it is characterized in that, comprise multiple digital sensor being arranged on the parallel connection of vehicle body, each digital sensor common source line, ground wire and communication data line, described power lead is connected with automotive ignition power supply, and described communication data line is connected with vehicle body audio amplifier.
2. host-free parking auxiliary system according to claim 1, it is characterized in that, described digital sensor inside includes communicating circuit, micro controller system, launch driving circuit, piezoceramic transducer, signal demodulator circuit, amplify arithmetical circuit, bandwidth-limited circuit, collecting electrode amplifying circuit, one ID identification circuit, 2nd ID identification circuit and power circuit, power circuit input end is connected with automotive ignition power supply by wire harness, one ID identification circuit input end is connected with vehicle body communication wire harness, one ID identification circuit mouth is connected with micro controller system, 2nd ID identification circuit input end is connected with vehicle body priming supply wire harness, 2nd ID identification circuit mouth is all connected with micro controller system with an ID identification circuit input end, communicating circuit and vehicle body communication wire harness and microcontroller communication, the mouth of micro controller system is connected with transmitting driving circuit, the mouth launching driving circuit is connected with piezoceramic transducer, the mouth of piezoceramic transducer is connected with the input end receiving amplifying circuit, the mouth receiving amplifying circuit is connected with bandwidth-limited circuit, bandwidth-limited circuit mouth is connected with collecting electrode input amplifier, collecting electrode amplification circuit output end connects micro controller system.
3. host-free parking auxiliary system according to claim 2, is characterized in that, a described ID identification circuit input end is connected with vehicle body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320886304.3U CN204279227U (en) | 2013-12-31 | 2013-12-31 | Host-free parking auxiliary system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320886304.3U CN204279227U (en) | 2013-12-31 | 2013-12-31 | Host-free parking auxiliary system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204279227U true CN204279227U (en) | 2015-04-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320886304.3U Expired - Fee Related CN204279227U (en) | 2013-12-31 | 2013-12-31 | Host-free parking auxiliary system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204279227U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015172680A1 (en) * | 2014-05-14 | 2015-11-19 | 林海明 | Parking radar digital probe module capable of rapidly positioning probe id and id positioning method thereof |
| CN105699979A (en) * | 2016-03-04 | 2016-06-22 | 余晓鹏 | Parking radar system without host and control method |
| CN105891829A (en) * | 2016-04-08 | 2016-08-24 | 浙江吉利控股集团有限公司 | Vehicle platform non-host radar system and communication method thereof |
| WO2021244789A1 (en) * | 2020-06-04 | 2021-12-09 | Bayerische Motoren Werke Aktiengesellschaft | Electronic component with ground coding for a motor vehicle |
-
2013
- 2013-12-31 CN CN201320886304.3U patent/CN204279227U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015172680A1 (en) * | 2014-05-14 | 2015-11-19 | 林海明 | Parking radar digital probe module capable of rapidly positioning probe id and id positioning method thereof |
| CN105699979A (en) * | 2016-03-04 | 2016-06-22 | 余晓鹏 | Parking radar system without host and control method |
| WO2017148235A1 (en) * | 2016-03-04 | 2017-09-08 | 余晓鹏 | Off-host parking radar system and control method |
| CN105891829A (en) * | 2016-04-08 | 2016-08-24 | 浙江吉利控股集团有限公司 | Vehicle platform non-host radar system and communication method thereof |
| CN105891829B (en) * | 2016-04-08 | 2018-08-21 | 浙江吉利控股集团有限公司 | A kind of vehicle platform off host radar system and its means of communication |
| WO2021244789A1 (en) * | 2020-06-04 | 2021-12-09 | Bayerische Motoren Werke Aktiengesellschaft | Electronic component with ground coding for a motor vehicle |
| US11932181B2 (en) | 2020-06-04 | 2024-03-19 | Bayerische Motoren Werke Aktiengesellschaft | Electronic component with ground coding for a motor vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20151231 |
|
| EXPY | Termination of patent right or utility model |