CN205374738U - Radar warning system backs a car - Google Patents
Radar warning system backs a car Download PDFInfo
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- CN205374738U CN205374738U CN201620072190.2U CN201620072190U CN205374738U CN 205374738 U CN205374738 U CN 205374738U CN 201620072190 U CN201620072190 U CN 201620072190U CN 205374738 U CN205374738 U CN 205374738U
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- radar
- warning system
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- ultrasonic signal
- barrier
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Abstract
The utility model discloses a radar warning system backs a car, through ultrasonic wave the detection unit, controller and the alarm unit that sets up interconnect, ultrasonic wave the detection unit sets up the afterbody at the car, and the alarm unit setting is in the driver's cabin, and ultrasonic wave the detection unit sends ultrasonic signal to the ultrasonic signal that the receipt was returned by external barrier, the controller obtains the distance between ultrasonic wave the detection unit and the barrier according to the ultrasonic signal that sends and the ultrasonic signal of receipt, and the distance between ultrasonic wave the detection unit and the barrier is less than when predetermineeing the threshold value, and the suggestion driver is reported to the police to controller control alarm unit. The problem of thereby microwave radar ranging system and the laser rangefinder system among the prior art receive external environment to influence the technique that great range finding influences the range finding accuracy is solved, the range finding that has reached is accurate, interference immunity is strong, simple structure, technological effect with low costs.
Description
Technical field
This utility model relates to distance-measuring equipment field, in particular to a kind of radar for backing car warning system.
Background technology
In daily life, when driver moves backward, due to the impact by sight line, it is difficult to the distance seeing the barrier at car rear portion or judgement and barrier clearly, thus often scratching the situation of the barrier at car rear portion, for this problem, in prior art, having occurred in that a lot of reverse sensor range system, main employing two ways realizes rear portion barrier range finding, respectively microwave radar receiver and LDMS.Aforementioned two kinds of range-measurement systems are relatively strong to the sensitivity of color, light and electromagnetic field, therefore, for translucent and diffuse-reflectance difference object, such as glass, the detection of polishing body etc. is relatively low accurately, or in dark, dust, smog, in the environment that electromagnetic interference is strong, the accuracy of detection is relatively low.It addition, above two range-measurement system technical difficulty is big, cost is high, is difficult to extensive use in civilian.
It is affected by the external environment for microwave radar receiver of the prior art and LDMS relatively big thus the technical problem of impact range finding accuracy of finding range, not yet proposes effective solution at present.
Summary of the invention
This utility model embodiment provides a kind of radar for backing car warning system, is affected by the external environment relatively big thus the technical problem of impact range finding accuracy of finding range at least solving microwave radar receiver and LDMS in prior art.
According to this utility model embodiment, it is provided that a kind of radar for backing car warning system, including: ultrasonic listening unit, it is used for sending ultrasonic signal, and receives the ultrasonic signal returned by extraneous barrier；Controller, is connected with ultrasonic listening unit, and the ultrasonic signal for the ultrasonic signal sent according to ultrasonic listening unit and reception obtains the distance between ultrasonic listening unit and barrier；Alarm unit, is connected with controller, reports to the police during for the distance between ultrasonic listening unit and barrier less than predetermined threshold value.
Further, alarm unit includes: alarm device of raising one's voice, flashing alarm device, Vibration alarm device at least one.
Further, alarm device of raising one's voice is buzzer, and buzzer includes electromagnetic buzzer and/or piezo buzzer.
Further, flashing alarm device is LED flash.
Further, radar for backing car warning system also includes: display, is connected with controller, for showing the distance between ultrasonic listening unit and barrier.
Further, display includes: digital display tube, touch display screen at least one.
Further, ultrasonic listening unit includes: ultrasonic transmitter, is used for sending ultrasonic signal；Ultrasonic sensor, for receiving the ultrasonic signal returned by barrier.
Further, ultrasonic listening unit also includes: ultrasound wave receives chip, is connected with ultrasonic sensor, processes for the ultrasonic signal that ultrasonic sensor is received.
Further, controller includes: timer, and for detecting the time difference of the ultrasonic signal of ultrasonic signal that ultrasonic listening unit sends and reception, wherein, controller is for obtaining the distance between ultrasonic listening unit and barrier according to time difference.
The radar for backing car warning system of application technical solutions of the utility model, by arranging interconnective ultrasonic listening unit, controller and alarm unit, ultrasonic listening unit is arranged on the afterbody of automobile, alarm unit is arranged in driver's cabin, ultrasonic listening unit sends ultrasonic signal, and receives the ultrasonic signal returned by extraneous barrier；Controller obtains the distance between ultrasonic listening unit and barrier according to the ultrasonic signal of the ultrasonic signal sent and reception, when distance between ultrasonic listening unit and barrier is less than predetermined threshold value, controller controls alarm unit and reports to the police, and points out driver.Solve microwave radar receiver of the prior art and LDMS is affected by the external environment relatively big thus finding range and affecting the technical problem of range finding accuracy, the technique effect that the range finding reached is accurately, strong interference immunity, simple in construction, cost are low.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by of the present utility model, constitutes the part of the application, and schematic description and description of the present utility model is used for explaining this utility model, is not intended that improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structured flowchart according to the optional a kind of radar for backing car warning system of this utility model embodiment；
Fig. 2 is the structured flowchart according to the optionally another kind of radar for backing car warning system of this utility model embodiment；
Fig. 3 is the structured flowchart according to the optionally another kind of radar for backing car warning system of this utility model embodiment；
Fig. 4 is the structured flowchart according to the optionally another kind of radar for backing car warning system of this utility model embodiment；
Fig. 5 is the structured flowchart according to the optionally another kind of radar for backing car warning system of this utility model embodiment.
Detailed description of the invention
In order to make those skilled in the art be more fully understood that this utility model scheme, below in conjunction with the accompanying drawing in this utility model embodiment, technical scheme in this utility model embodiment is clearly and completely described, obviously, described embodiment is only the embodiment of this utility model part, rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, all should belong to the scope of this utility model protection.
According to this utility model embodiment, provide a kind of radar for backing car warning system, as it is shown in figure 1, include: ultrasonic listening unit 1, controller 2 and alarm unit 3, ultrasonic listening unit 1 is used for sending ultrasonic signal, and receives the ultrasonic signal returned by extraneous barrier；Controller 2 is connected with ultrasonic listening unit 1, and the ultrasonic signal for the ultrasonic signal sent according to ultrasonic listening unit 1 and reception obtains the distance between ultrasonic listening unit 1 and barrier；Alarm unit 2 is connected with controller 2, reports to the police during for the distance between ultrasonic listening unit 1 and barrier less than predetermined threshold value.
The radar for backing car warning system of application technical solutions of the utility model, by arranging interconnective ultrasonic listening unit 1, controller 2 and alarm unit 3, ultrasonic listening unit 1 is arranged on the afterbody of automobile, alarm unit 3 is arranged in driver's cabin, ultrasonic listening unit 1 sends ultrasonic signal, and receives the ultrasonic signal returned by extraneous barrier；Controller 2 obtains the distance between ultrasonic listening unit 1 and barrier according to the ultrasonic signal of the ultrasonic signal sent and reception, when distance between ultrasonic listening unit 1 and barrier is less than predetermined threshold value, controller 2 controls alarm unit 3 and reports to the police, and points out driver.Solve microwave radar receiver of the prior art and LDMS is affected by the external environment relatively big thus finding range and affecting the technical problem of range finding accuracy, the technique effect that the range finding reached is accurately, strong interference immunity, simple in construction, cost are low.
When being embodied as, as in figure 2 it is shown, ultrasonic listening unit 1 includes: ultrasonic transmitter 11 and ultrasonic sensor 12, ultrasonic transmitter 11 is used for sending ultrasonic signal；Ultrasonic sensor 12 is for receiving the ultrasonic signal returned by barrier, due to the ultrasonic signal that returns by external environment to affect signal more weak, therefore, ultrasonic listening unit 1 also includes: ultrasound wave receives chip 13, ultrasound wave receives chip 13 and is connected with ultrasonic sensor 12, the ultrasonic signal returned by barrier for ultrasonic sensor 12 is received processes, and the ultrasonic signal of return can accurately be received.
As shown in Figure 3, controller 2 includes: timer 21, this timer 21 is for recording ultrasonic transmitter 11 and send hyperacoustic time and ultrasonic sensor 12 receiving hyperacoustic time thus obtaining the time difference that ultrasound wave sends and receives, and then controller 2 can obtain the distance between ultrasonic listening unit 1 and barrier according to the speed of this time difference and hyperacoustic propagation.
Alarm unit 3 can take the signal that the human bodies such as sound, light, vibration are prone to perception to report to the police, specifically, as shown in Figure 4, alarm unit 3 can adopt alarm device 31 of raising one's voice, flashing alarm device 32 and Vibration alarm device 33 at least one, alternatively, alarm device 31 of raising one's voice can select buzzer, and buzzer can also adopt electromagnetic buzzer and/or piezo buzzer according to specific needs, electromagnetic buzzer sound is louder and clearer, and Frequency Response is better；And piezo buzzer is more resistant to being influenced by the adverse circumstances, and the life-span is also longer.Report to the police owing to radar for backing car warning system belongs to short distance, and the requirement in life-span is higher, it is therefore preferred that piezo buzzer selected by buzzer.
Flashing alarm device 32 can be any luminous component, and in order to more energy efficient and the life-span is longer, alternatively, flashing alarm device 32 selects LED flash.Vibration alarm device 33 is by producing vibration prompt driver.
The safe distance with barrier in reversing process can be configured by controller 2, such as, can arrange safe distance is 1m, this safe distance is the threshold value that alarm unit 3 carries out reporting to the police, in reversing process, when the distance of automobile tail and barrier arrives 1m, then controller 2 can send alarm command to alarm device 3 and controls alarm device 3 and report to the police.
Except adopting alarm driver's automobile tail close from barrier, it is necessary to note.It addition, in order to enable a driver to the distance more intuitively obtaining understanding automobile tail barrier, thus taking reversing strategy more preferably, determine next step car backing operation scheme.Alternatively, as it is shown in figure 5, be additionally provided with the display 4 being connected with controller 2 at driver's cabin, for showing the distance between ultrasonic listening unit 1 and barrier in real time, i.e. the distance of automobile tail and barrier.Display 4 can adopt the better digital display tube of cost performance, it would however also be possible to employ display effect better touches display screen.Certainly, display 4 can also directly utilize the indoor existing display device of car steering, only need to it be connected with controller 2.
Below it is only preferred implementation of the present utility model; it should be pointed out that, for those skilled in the art, under the premise without departing from this utility model principle; can also making some improvements and modifications, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (9)
1. a radar for backing car warning system, it is characterised in that including:
Ultrasonic listening unit, is used for sending ultrasonic signal, and receives the described ultrasonic signal returned by extraneous barrier；
Controller, is connected with described ultrasonic listening unit, and the described ultrasonic signal for the described ultrasonic signal sent according to described ultrasonic listening unit and reception obtains the distance between described ultrasonic listening unit and described barrier；
Alarm unit, is connected with described controller, reports to the police during for the distance between described ultrasonic listening unit and described barrier less than predetermined threshold value.
2. radar for backing car warning system according to claim 1, it is characterised in that described alarm unit includes:
Raise one's voice alarm device, flashing alarm device, Vibration alarm device at least one.
3. radar for backing car warning system according to claim 2, it is characterised in that
Described alarm device of raising one's voice is buzzer, and described buzzer includes electromagnetic buzzer and/or piezo buzzer.
4. radar for backing car warning system according to claim 2, it is characterised in that
Described flashing alarm device is LED flash.
5. radar for backing car warning system according to claim 1, it is characterised in that described radar for backing car warning system also includes:
Display, is connected with described controller, for showing the distance between described ultrasonic listening unit and described barrier.
6. radar for backing car warning system according to claim 5, it is characterised in that described display includes:
Digital display tube, touch display screen at least one.
7. radar for backing car warning system according to claim 1, it is characterised in that described ultrasonic listening unit includes:
Ultrasonic transmitter, is used for sending ultrasonic signal；
Ultrasonic sensor, for receiving the described ultrasonic signal returned by described barrier.
8. radar for backing car warning system according to claim 7, it is characterised in that described ultrasonic listening unit also includes:
Ultrasound wave receives chip, is connected with described ultrasonic sensor, processes for the described ultrasonic signal that described ultrasonic sensor is received.
9. radar for backing car warning system according to claim 1, it is characterised in that described controller includes:
Timer, for detecting the time difference of the described ultrasonic signal of described ultrasonic signal that described ultrasonic listening unit sends and reception, wherein, described controller is for obtaining the distance between described ultrasonic listening unit and described barrier according to described time difference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620072190.2U CN205374738U (en) | 2016-01-26 | 2016-01-26 | Radar warning system backs a car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620072190.2U CN205374738U (en) | 2016-01-26 | 2016-01-26 | Radar warning system backs a car |
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| Publication Number | Publication Date |
|---|---|
| CN205374738U true CN205374738U (en) | 2016-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620072190.2U Expired - Fee Related CN205374738U (en) | 2016-01-26 | 2016-01-26 | Radar warning system backs a car |
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| CN (1) | CN205374738U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106597455A (en) * | 2016-12-31 | 2017-04-26 | 深圳天珑无线科技有限公司 | Method and system for avoiding collision occurrence by using ultrasonic wave range finding |
| CN107064945A (en) * | 2017-05-22 | 2017-08-18 | 南宁学院 | A kind of oscillatory type Ultrasonic Range Finder for Parking |
| CN107310698A (en) * | 2017-07-20 | 2017-11-03 | 刘富仪 | The underwater sightseeing for being equipped with sea water desalinating unit investigates device |
| CN108437922A (en) * | 2018-03-16 | 2018-08-24 | 四川长虹电器股份有限公司 | A kind of automobile side parking induction system and method |
-
2016
- 2016-01-26 CN CN201620072190.2U patent/CN205374738U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106597455A (en) * | 2016-12-31 | 2017-04-26 | 深圳天珑无线科技有限公司 | Method and system for avoiding collision occurrence by using ultrasonic wave range finding |
| CN107064945A (en) * | 2017-05-22 | 2017-08-18 | 南宁学院 | A kind of oscillatory type Ultrasonic Range Finder for Parking |
| CN107310698A (en) * | 2017-07-20 | 2017-11-03 | 刘富仪 | The underwater sightseeing for being equipped with sea water desalinating unit investigates device |
| CN108437922A (en) * | 2018-03-16 | 2018-08-24 | 四川长虹电器股份有限公司 | A kind of automobile side parking induction system and method |
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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: 20160706 Termination date: 20170126 |