CN203759245U - Reversing radar system with characteristic of power supply and digital signal transmission wire sharing - Google Patents
Reversing radar system with characteristic of power supply and digital signal transmission wire sharing Download PDFInfo
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- CN203759245U CN203759245U CN201420094443.7U CN201420094443U CN203759245U CN 203759245 U CN203759245 U CN 203759245U CN 201420094443 U CN201420094443 U CN 201420094443U CN 203759245 U CN203759245 U CN 203759245U
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- master control
- probe
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- power supply
- control unit
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Abstract
The utility model discloses a reversing radar system with characteristic of power supply and digital signal transmission wire sharing. The reversing radar system comprises a master control unit, a plurality of signal bus digital probes, an alarm prompter, and a vehicle-mounted power supply. The master control unit that provides power supply driving for the vehicle-mounted power supply includes a master control board and a master control composite bus interface. The signal bus digital probes include radar processors and probe composite bus interfaces; the master control composite bus interface and the probe composite bus interfaces carry out signal communication by composite buses; and the radar processor transmits a collected signal to the master control board in the master control unit in a digital signal mode. The alarm prompter and the master control unit are in signal communication. And signals collected by the probes are transmitted to the master control unit in digital signal modes by using composite buses. The whole system has advantages of simple structure, stable transmission, and high anti-interference capability; the complex wiring is not needed; the wiring workload is reduced; and the cost input is reduced.
Description
Technical field
The utility model belongs to reversing radar of vehicle field, particularly a kind of reverse radar system that adopts power supply and digital data transmission conllinear.
Background technology
Automobile has become walking-replacing tool very important in our daily life, how safety drive a car most important, in running car, the effect of radar for backing car just comparatively highlights, current reverse radar system is, by dedicated signal lines, echo is directly returned to main control unit with the form of simulating signal, there is certain defect in this mode, due to distant between probe and main control unit, the simulating signal of transmission is easily disturbed, signal transmission is unstable, and the signal wire between each probe and main control unit also can make the more complicated of wiring change, increase workload, also the corresponding equipment cost that increased, the new probe of amplification is simultaneously also comparatively complicated, this gives in our car steering and brings very large inconvenience and potential safety hazard.
The technical problems to be solved in the utility model be to provide a kind of simple in structure, reliability is high, stable performance, Novel backrun radar system that cost is low.
Utility model content
In order to solve, above-mentioned prior art wiring is complicated, unstable, the high in cost of production problem of signal transmission, and the utility model adopts following technical scheme:
The utility model provides the reverse radar system of a kind of power supply and digital data transmission conllinear, comprise main control unit, several unibus digital probes, alarm reminder and vehicle power, described main control unit provides power drives by described vehicle power, described main control unit comprises master control board and the compound bus interface of master control, described unibus digital probe comprises radar processor and the compound bus interface of probe, the compound bus interface of described master control realizes signal communication with the compound bus interface of probe by compound bus, described radar processor is transferred to the master control board in described main control unit by the signal collecting with the form of digital signal, described alarm reminder and described main control unit signal communication.
As to improvement of the present utility model, described compound bus comprises interface circuit, unibus and multiple spot probe communication protocol.
As to further improvement of the utility model, described radar processor comprises probe interface circuit, probe microprocessor, ultrasonic exciting circuit and echo receiving processing circuit.
As to further improvement of the utility model, described interface circuit comprises the compound bus interface circuit of master control and the compound bus interface circuit of probe, the compound bus interface circuit of described master control comprises master control transtation mission circuit, master control receiving circuit and power-saving control circuit, and the compound bus interface circuit of described probe comprises separate power supplies circuit, probe transtation mission circuit and probe receiving circuit.
As to further improvement of the utility model, described alarm reminder is touch display screen.
As to further improvement of the utility model, described alarm reminder is hummer.
The beneficial effects of the utility model are: the signal that adopts compound bus that probe is gathered is transferred to main control unit with digital signal form, and system architecture is simple, transmits more stable, antijamming capability is strong, without complexity wiring, reduce installation work amount, reduce cost input.
Brief description of the drawings
Fig. 1 is the structural representation of a kind of embodiment of the utility model.
Fig. 2 is the circuit theory diagrams between main control unit and compound bus in the utility model.
Fig. 3 is the circuit theory diagrams between unibus digital probe and compound bus in the utility model.
Embodiment
Describe preferred embodiment of the present utility model in detail below in conjunction with accompanying drawing.
Refer to Fig. 1, the reverse radar system of a kind of power supply and digital data transmission conllinear, comprise main control unit 1, several unibus digital probes 2, alarm reminder 3 and vehicle power 4, described main control unit 1 provides power drives by described vehicle power 4, described main control unit 1 comprises master control board 11 and the compound bus interface 12 of master control, described unibus digital probe 2 comprises radar processor 21 and the compound bus interface 22 of probe, the compound bus interface 12 of described master control realizes signal communication with the compound bus interface 22 of probe by compound bus 5, described radar processor 11 is transferred to the master control board 11 in described main control unit 1 by the signal collecting with the form of digital signal, described alarm reminder 3 and described main control unit 1 signal communication, signal probe being gathered by compound bus is transferred in main control unit with the form of digital signal, adopt compound bus mode transmission to possess very many advantages, system architecture is simple, connect up without complexity, also reduced accordingly equipment cost input simultaneously, and strong interference immunity, steady signal transmission, reliability is strong, guarantee system is operation smoothly normally, and traditional reverse radar system is to adopt dedicated signal lines to pass echo back main control unit with analog signaling, this mode signal is easily disturbed, poor stability, connect up more complicated, cost drops into larger, can address the above problem by compound bus transfer.
In the utility model, described compound bus 5 comprises interface circuit, unibus and multiple spot probe communication protocol, described interface circuit comprises the compound bus interface circuit of master control and the compound bus interface circuit of probe, the compound bus interface circuit of described master control comprises master control transtation mission circuit, master control receiving circuit and power-saving control circuit, the compound bus interface circuit of described probe comprises separate power supplies circuit, probe transtation mission circuit and probe receiving circuit, described radar processor comprises probe interface circuit, probe microprocessor, ultrasonic exciting circuit and echo receiving processing circuit, physical circuit principle refers to Fig. 2 and Fig. 3, at main control unit end, Q8, Q9 and some capacitance-resistance diodes form the transtation mission circuit of compound bus interface circuit, form compound bus receiving circuit, Q6 by Q4 and some capacitance-resistance diodes, Q10 and some capacitance-resistance diodes form compound bus and receive the power-saving control circuit under operating mode, the transmission transmit port TXD of master control board through C12 AC coupling (preventing from disturbing or the locked bus of fault) to by Q8, D4, R20, the single tube common emitter amplification and rectification circuit of R21 and R26 composition, Q8 collector output point two-way, a road is extremely with Q5, D3, R15, R14, current source type power supply and the transmitted circuit of R27 and C11 composition, another road is extremely with Q9, R32, under R34 and C19 composition transmitted, along accelerating circuit, the receiving port RXD of master control board connects the emitter of Q4, Q4 and R11, D1, R18, D2, R19 and C10 composition incoming level translation circuit Q10 meet respectively bus and transmit port TXD through R39 and R35, and in order to monitor the transmit leg of identification bus data transmission, while transmission for digital probe, power cutoff reaches power saving object, in unibus digital probe unit side, Db1, C2, the composition such as C1 and U1 separate power supplies circuit, isolate 12V power supply from bus, the transtation mission circuit of compound bus interface circuit is by Q3 and diode, the single tube emitter-base bandgap grading coupling amplification shaping circuit of the element compositions such as resistance, and the level translation of Q1 and peripheral element composition and driver composition, the common-collector amplifier that the receiving circuit of compound bus interface circuit is made up of Q2 and peripheral element forms, probe interface circuit is by Q3 and diode, the single tube emitter-base bandgap grading coupling amplification shaping circuit of the element compositions such as resistance, and the level translation of Q1 and peripheral element composition and driver composition.Send the same C8 of employing electric capacity and be ac-coupled to the pulse of MCU transport communication.The common-collector amplifier that receiving circuit is made up of Q2 and peripheral element forms, connect compound total line drawing signal of communication through R5, convert the RXD received communication data that Transistor-Transistor Logic level meets MCU to, ultrasonic exciting circuit is by T1, Q7, resistance, the elements such as diode form, echo receiving processing circuit group is by Q11, Q12, U2 and resistance, electric capacity, the elements such as diode form, in the time that needs are found range work, main control MCU sends to range finding order in compound bus by the compound bus transtation mission circuit of main control end, sound end MCU sends ultrasonic exciting signal after receiving order by compound bus receiving circuit, then echoed signal detected by echo receiving processing circuit.Probe MCU calculated after distance value by the mistiming between pumping signal and echoed signal, by the compound bus transtation mission circuit of sound end, distance value is sent in compound bus with the form of digital signal, main control MCU receives this distance value by the compound bus receiving circuit of main control end, by relatively judging the warning devices such as rear drive demonstration or hummer.
In the utility model, described alarm reminder 3 can be selected touch display screen or hummer, all can remind timely driver to carry out safe operation for two kinds, current car is interior taking touch display screen as main, can see intuitively environment around by touch display screen, more auxiliary voice messages, prompting effect is better.
Above-described embodiment and graphic and non-limiting product form of the present utility model and style, suitable variation or modification that any person of an ordinary skill in the technical field does it, all should be considered as not departing from patent category of the present utility model.
Claims (6)
1. the reverse radar system of a power supply and digital data transmission conllinear, it is characterized in that: comprise main control unit (1), several unibus digital probes (2), alarm reminder (3) and vehicle power (4), described main control unit (1) provides power drives by described vehicle power (4), described main control unit (1) comprises master control board (11) and the compound bus interface of master control (12), described unibus digital probe (2) comprises radar processor (21) and the compound bus interface of probe (22), the compound bus interface of described master control (12) realizes signal communication with the compound bus interface of probe (22) by compound bus (5), described radar processor (21) is transferred to the master control board (11) in described main control unit (1) by the signal collecting with the form of digital signal, described alarm reminder (3) and described main control unit (1) signal communication.
2. the reverse radar system of power supply according to claim 1 and digital data transmission conllinear, is characterized in that: described compound bus (5) comprises interface circuit, unibus and multiple spot probe communication protocol.
3. the reverse radar system of power supply according to claim 1 and digital data transmission conllinear, is characterized in that: described radar processor (21) comprises probe interface circuit, probe microprocessor, ultrasonic exciting circuit and echo receiving processing circuit.
4. the reverse radar system of power supply according to claim 2 and digital data transmission conllinear, it is characterized in that: described interface circuit comprises the compound bus interface circuit of master control and the compound bus interface circuit of probe, the compound bus interface circuit of described master control comprises master control transtation mission circuit, master control receiving circuit and power-saving control circuit, and the compound bus interface circuit of described probe comprises separate power supplies circuit, probe transtation mission circuit and probe receiving circuit.
5. the reverse radar system of power supply according to claim 1 and digital data transmission conllinear, is characterized in that: described alarm reminder (3) is touch display screen.
6. the reverse radar system of power supply according to claim 1 and digital data transmission conllinear, is characterized in that: described alarm reminder (3) is hummer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420094443.7U CN203759245U (en) | 2014-03-04 | 2014-03-04 | Reversing radar system with characteristic of power supply and digital signal transmission wire sharing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420094443.7U CN203759245U (en) | 2014-03-04 | 2014-03-04 | Reversing radar system with characteristic of power supply and digital signal transmission wire sharing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203759245U true CN203759245U (en) | 2014-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420094443.7U Expired - Fee Related CN203759245U (en) | 2014-03-04 | 2014-03-04 | Reversing radar system with characteristic of power supply and digital signal transmission wire sharing |
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| Country | Link |
|---|---|
| CN (1) | CN203759245U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109031321A (en) * | 2018-06-26 | 2018-12-18 | 北京经纬恒润科技有限公司 | Ultrasonic echo analogy method, apparatus and system |
| CN111366935A (en) * | 2018-12-07 | 2020-07-03 | 深圳市航盛电子股份有限公司 | Radar sensor and no-host multi-probe radar system |
-
2014
- 2014-03-04 CN CN201420094443.7U patent/CN203759245U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109031321A (en) * | 2018-06-26 | 2018-12-18 | 北京经纬恒润科技有限公司 | Ultrasonic echo analogy method, apparatus and system |
| CN111366935A (en) * | 2018-12-07 | 2020-07-03 | 深圳市航盛电子股份有限公司 | Radar sensor and no-host multi-probe radar system |
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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 |
Granted publication date: 20140806 Termination date: 20180304 |
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| CF01 | Termination of patent right due to non-payment of annual fee |