CN203561746U - Intelligent reversing radar system - Google Patents
Intelligent reversing radar system Download PDFInfo
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- CN203561746U CN203561746U CN201320645290.6U CN201320645290U CN203561746U CN 203561746 U CN203561746 U CN 203561746U CN 201320645290 U CN201320645290 U CN 201320645290U CN 203561746 U CN203561746 U CN 203561746U
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Abstract
The utility model discloses an intelligent reversing radar system and relates to radar systems. The intelligent reversing radar system comprises at least two sensors which include at least one master control sensor. Each sensor comprises an ultrasonic sensing unit and a control unit; the control unit comprises a single-chip microcomputer, a transmitting circuit and a receiving circuit; the output end of the single-chip microcomputer is connected with the input end of the ultrasonic sensing unit through the transmitting circuit; and the output end of the ultrasonic sensing unit is connected with the input end of the single-chip microcomputer through the receiving circuit. The single-chip microcomputer of each sensor is connected with a connector. The single-chip microcomputer of the master control sensor is connected with external equipment through an external data wire. The single-chip microcomputers of the sensors are connected through an internal communication wire. The single-chip microcomputers of the sensors are connected with a reversing lamp signal wire and a ground wire through the connectors. The intelligent reversing radar system has the advantages of simplification of a hardware circuit, stable and reliable performance, automatic location function and good expansibility and universality and is capable of preventing start delay caused by data communication exceptions.
Description
Technical field
The utility model relates to a kind of radar system, particularly a kind of intelligent backing radar system.
Background technology
Along with the fast development of auto industry, during automobile production, standard configuration radar for backing car comes true, only have before configuration that high-end car just enjoys nowadays entry level car have too.Science and technology is improving, and technology is in development, and radar for backing car is also upgrading, and from simulation radar for backing car to digital radar for backing car, then develops into intelligent backing radar.In current radar for backing car technical scheme, a controller of most employing configures multiple approach sensors, and this mode not only wire harness is various, and cost is also high.Although there is part radar for backing car to remove controller, because of not science of its connected mode, there is major defect, need realize by very complicated Circuit Matching and software algorithm, and it cannot expand to 6 versatility is inadequate with upper sensor, stability is bad.And only have a data lines can cause sensor when carrying out communicating by letter between inside, and need to connect external unit (instrument or BCM or car running computer) real-time response, not only increase the burden of external unit, and be easy to cause communication to make mistakes, cause unexpected generation.
Utility model content
The technical problems to be solved in the utility model is: a kind of intelligent backing radar system of simplifying hardware circuit and having reliable and stable performance is simultaneously provided.
The technical scheme solving the problems of the technologies described above is: a kind of intelligent backing radar system, comprise at least 2 sensors, at least 2 described sensors comprise at least 1 master control sensor, each sensor includes supersonic sensing unit and control module, described control module comprises single-chip microcomputer, radiating circuit, receiving circuit, the output terminal of single-chip microcomputer is connected with the input end of supersonic sensing unit by radiating circuit, and the output terminal of supersonic sensing unit is connected with the input end of single-chip microcomputer by receiving circuit; The single-chip microcomputer of each sensor is also connected with a connector for connection line at terminals, the single-chip microcomputer of master control sensor is connected with external unit by an external data line, between the single-chip microcomputer of each sensor, by an intercommunication line that is connected to each connector, be connected, the single-chip microcomputer of each sensor is also connected with backup lamp signal wire and ground wire by connector respectively.
Further technical scheme of the present utility model is: described radiating circuit comprises transformer, and wherein the input end of transformer and the output terminal of single-chip microcomputer are connected, and the output terminal of transformer is connected with the input end of supersonic sensing unit; Described receiving circuit comprises successively connected echoed signal amplifying circuit and echo signal processing circuit, wherein the input end of echoed signal amplifying circuit is connected with the output terminal of supersonic sensing unit, and the output terminal of echo signal processing circuit is connected with the input end of single-chip microcomputer; Described supersonic sensing unit comprises ultrasound wave spy core.
Further technical scheme more of the present utility model is: described sensor has 2～8, wherein there is 1 for master control sensor, 1 is standby master control sensor, remaining is secondary sensor, and the single-chip microcomputer of described master control sensor, standby master control sensor is connected with external unit by an external data line that is connected to connector.
Described connector is 6 pin connectors, this connector with 1., 2., 3., 4., 5., 6. number pin.
The single-chip microcomputer of described each sensor respectively by connector 1. number pin be connected with backup lamp signal wire.
The single-chip microcomputer of described each sensor respectively by connector 2. number pin be connected with ground wire.
The single-chip microcomputer of described master control sensor, standby master control sensor by connector 3. number pin be connected with the external data line that is connected to external unit.
The single-chip microcomputer of described each sensor respectively by connector 4. number pin be connected with intercommunication line.
Owing to adopting technique scheme, the intelligent backing radar system of the utility model compared with prior art, has following beneficial effect:
1. can simplify hardware circuit:
Because sensor of the present utility model comprises supersonic sensing unit and control module, be all to dispose a control module for each supersonic sensing unit, its hardware circuit is simple, avoided adopting a controller to configure the weak point that wire harness is various, cost is high that multiple approach sensors exist, but also had the following advantages:
(1) sensor receives the simulating signal of returning, after amplifying circuit, by the data processing unit of single-chip microcomputer, directly calculated the actual range of barrier, do not need to pass through again very long data line return signal to single-chip microcomputer, can effectively avoid decay and the interference of signal in transmitting procedure.
(2) through single-chip microcomputer, processing the obstacle information returning is later digital signal, on antijamming capability, can greatly strengthen, can bear electromagnetic radiation and the noise of vehicle itself, to EMC(Electro Magnetic Compatibility, the abbreviation of Electro Magnetic Compatibility), with EMI(electromagnetic interference (EMI), the abbreviation of Electromagnetic Interference) there is an obvious lifting effect.
2. stable and reliable for performance:
Because the utility model possesses two separate data lines, wherein intercommunication line carries out internal exchange of data and logic control between sensor, external data line is for master control sensor correspondence with foreign country, article two, data line is separate, do not interfere with each other, need not connect external unit real-time response, not only reduced the burden of external unit, and be difficult for causing communication to make mistakes, avoided unexpected generation; The utility model also can be set two master control sensors in addition, guarantees that one of them master control sensor breaks down, and system still can normally be carried out work, therefore, of the present utility model stable and reliable for performance.
3. there is automatic positioning function:
Because the single-chip microcomputer of each sensor of the utility model is also connected with a connector for connection line at terminals, by using this connector, at wire harness, make wire jumper in to plug-in unit, can realize simply, fast and accurately automatic alignment sensor position.
4. favorable expandability, highly versatile:
The utility model all the sensors is used same software, hardware, structure, can very simply realize the expansion of 6 ~ 8 sensing systems.
5. the startup time delay that can avoid factor data communication abnormality to cause:
Power supply of the present utility model is connected to backup lamp, without communicating by letter and can hang fashionable startup radar for backing car at R shelves with external unit (instrument or BCM or car running computer), the startup time delay of avoiding factor data communication abnormality to cause.
Below, the technical characterictic of the intelligent backing radar system to the utility model is further described in conjunction with the accompanying drawings and embodiments.
Accompanying drawing explanation
Fig. 1: the structured flowchart of the intelligent backing radar system of the utility model,
Described in Fig. 2: embodiment mono-, the sensor connection layout of intelligent backing radar system and wire harness are to connector wire jumper connection layout.
In above-mentioned accompanying drawing, each label is as follows:
1-sensor, 1a-master control sensor, the secondary sensor of 1b-, the standby master control sensor of 1c-,
11-supersonic sensing unit, 12-control module, 121-single-chip microcomputer, 122-radiating circuit,
123-receiving circuit, 2-connector, 3-external data line, 4-intercommunication line,
5-backup lamp signal wire, 6-ground wire, 7-external unit, D1, D2, D3-addressing.
Specific embodiment
Embodiment mono-:
A kind of intelligent backing radar system, comprise 4 sensors 1, wherein 1 is master control sensor 1a, 1 is standby master control sensor 1c, remaining is secondary sensor 1b, described sensor 1 includes supersonic sensing unit 11 and control module 12, described supersonic sensing unit 11 comprises ultrasound wave spy core, described control module 12 comprises single-chip microcomputer 121, radiating circuit 122, receiving circuit 123, wherein radiating circuit comprises transformer (being stepup transformer), wherein the input end of transformer and the output terminal of single-chip microcomputer are connected, the output terminal of transformer is connected with the input end of supersonic sensing unit, described receiving circuit comprises successively connected echoed signal amplifying circuit and echo signal processing circuit, wherein the input end of echoed signal amplifying circuit is connected with the output terminal of supersonic sensing unit, and the output terminal of echo signal processing circuit is connected with the input end of single-chip microcomputer, the single-chip microcomputer 121 of each sensor is also connected with a connector 2 for connection line at terminals, and connector 2 is 6 pin connectors, with 1., 2., 3., 4., 5., 6. number pin, the single-chip microcomputer 121 of described each sensor respectively by connector 2 1. number pin be connected with backup lamp signal wire 5, the single-chip microcomputer 121 of each sensor respectively by connector 2 2. number pin be connected with ground wire 6, the single-chip microcomputer 121 of master control sensor 1a, standby master control sensor 1c by connector 2 3. number pin be connected with the external data line 3 that is connected to external unit 7, described external unit is instrument or BCM or car running computer, between the single-chip microcomputer 121 of each sensor respectively by connector 2 4. number pin be connected with intercommunication line 4.
In the present embodiment one, the principle of work of intelligent backing radar system is as follows:
1. native system adopts 6 pin connectors, to connector connected mode as shown in Figure 2, by being connected with the single-chip microcomputer of sensor, fashionable at R shelves extension, by detecting wire jumper pin level value, can realize simply, fast, reliably automatic location, as shown in the table:
| ID3 | ID1 | ID2 | Position | Remarks |
| -- | 0 | 0 | Left sensor | Master control sensor |
| -- | 0 | 1 | Left sensor | Standby master control sensor |
| -- | 1 | 0 | Right sensor | Secondary sensor |
| -- | 1 | 1 | Right sensor | Secondary sensor |
When sensor has variation, or after changing, while again moveing backward, can again mate, not affect system works, also not need to do any change.
2. after system realizes and automatically locating, master control sensor starts work schedule and the logic control of leading whole system, the transmission instruction that can circulate of master control sensor, control other sensor and realize autonomous detection, and return to self check data, by master control sensor, carry out data analysis, whether final decision System self-test is normal.If normal, prepare transmitting ultrasound wave, if occur, extremely, failure message is sent to external unit (instrument or BCM or car running computer).
3. sensor internal I.F.T. (being commonly called as middle week) is by+5V power voltage supply, and the mutual symmetry square wave that it is sent to some by MCU, visits core work at the rear drive 58KHz that boosts, and realizes ultrasound wave and normally sends.
4. sensor proceeds to accepting state immediately sending after ultrasound wave, detect in real time and have the signal returning because of barrier, because of signal sharp-decay in transmitting procedure, therefore need, by amplifier circuit unit, it is carried out to corresponding signal boost, but also to note matching parameter simultaneously, promote signal to noise ratio (S/N ratio), eliminate as far as possible noise.
5. the simulating signal that the control module of sensor is returned and is exaggerated by identification, converts it into digital signal, and whether the signal magnitude of returning according to it carry out disturbance in judgement thing and exist, and then the Time Calculation consuming according to it goes out the distance of barrier.
6. through the work of a circulation, each sensor can scan once bumper surrounding environment, all data messages are all sent to master control sensor, now master control sensor is again by comparing, find out nearest barrier, its obstacle distance information and sensor orientation information exchange are crossed to external data line and send to external unit (instrument or BCM or car running computer), proceed to again afterwards next working cycle, until R shelves are switched to other gear.
As the one of originally executing example one, convert: described sensor can also increase or reduce, and is generally 2～8, wherein have 1 at least for master control sensor 1a.
As another conversion of originally executing example one: described connector 2 can also be 5 pin, 4 pin, 3 pin connectors.
Claims (8)
1. an intelligent backing radar system, comprise at least 2 sensors (1), it is characterized in that: described at least 2 sensors (1) comprise at least 1 master control sensor, each sensor (1) includes supersonic sensing unit (11) and control module (12), described control module (12) comprises single-chip microcomputer (121), radiating circuit (122), receiving circuit (123), the output terminal of single-chip microcomputer (121) is connected with the input end of supersonic sensing unit (11) by radiating circuit (122), the output terminal of supersonic sensing unit (11) is connected with the input end of single-chip microcomputer (121) by receiving circuit (123), the single-chip microcomputer (121) of each sensor is also connected with a connector for connection line (2) at terminals, the single-chip microcomputer (121) of master control sensor is connected with external unit (7) by an external data line (3), between the single-chip microcomputer (121) of each sensor, by an intercommunication line (4) that is connected to each connector, be connected, the single-chip microcomputer (121) of each sensor is also connected with backup lamp signal wire (5) and ground wire (6) by connector respectively.
2. intelligent backing radar system according to claim 1, is characterized in that: described radiating circuit comprises transformer, wherein the input end of transformer and the output terminal of single-chip microcomputer are connected, and the output terminal of transformer is connected with the input end of supersonic sensing unit; Described receiving circuit comprises successively connected echoed signal amplifying circuit and echo signal processing circuit, wherein the input end of echoed signal amplifying circuit is connected with the output terminal of supersonic sensing unit, and the output terminal of echo signal processing circuit is connected with the input end of single-chip microcomputer; Described supersonic sensing unit comprises ultrasound wave spy core.
3. intelligent backing radar system according to claim 2, it is characterized in that: described sensor (1) has 2～8, wherein there is 1 for master control sensor (1a), 1 is standby master control sensor (1c), remaining is secondary sensor (1b), and the single-chip microcomputer of described master control sensor (1a), standby master control sensor (1c) is connected with external unit by an external data line (3) that is connected to connector.
4. intelligent backing radar system according to claim 3, is characterized in that: described connector (2) is 6 pin connectors, this connector with 1., 2., 3., 4., 5., 6. number pin.
5. intelligent backing radar system according to claim 4, is characterized in that: the single-chip microcomputer (121) of described each sensor respectively by connector (2) 1. number pin be connected with backup lamp signal wire (5).
6. intelligent backing radar system according to claim 4, is characterized in that: the single-chip microcomputer (121) of described each sensor respectively by connector (2) 2. number pin be connected with ground wire (6).
7. intelligent backing radar system according to claim 4, is characterized in that: the single-chip microcomputer (121) of described master control sensor (1a), standby master control sensor (1c) by connector (2) 3. number pin be connected with the external data line (3) that is connected to external unit.
8. according to the intelligent backing radar system described in claim 4 or 5 or 6 or 7, it is characterized in that: the single-chip microcomputer (121) of described each sensor respectively by connector (2) 4. number pin be connected with intercommunication line (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320645290.6U CN203561746U (en) | 2013-10-18 | 2013-10-18 | Intelligent reversing radar system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320645290.6U CN203561746U (en) | 2013-10-18 | 2013-10-18 | Intelligent reversing radar system |
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| CN203561746U true CN203561746U (en) | 2014-04-23 |
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| CN201320645290.6U Expired - Fee Related CN203561746U (en) | 2013-10-18 | 2013-10-18 | Intelligent reversing radar system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105699979A (en) * | 2016-03-04 | 2016-06-22 | 余晓鹏 | Parking radar system without host and control method |
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2013
- 2013-10-18 CN CN201320645290.6U patent/CN203561746U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105699979A (en) * | 2016-03-04 | 2016-06-22 | 余晓鹏 | Parking radar system without host and control method |
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| 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: 20140423 Termination date: 20161018 |