CN204439831U - A kind of ultrasonic ranging Signal Pretreatment unit - Google Patents
A kind of ultrasonic ranging Signal Pretreatment unit Download PDFInfo
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- CN204439831U CN204439831U CN201420805319.7U CN201420805319U CN204439831U CN 204439831 U CN204439831 U CN 204439831U CN 201420805319 U CN201420805319 U CN 201420805319U CN 204439831 U CN204439831 U CN 204439831U
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Abstract
The utility model relates to a kind of ultrasonic ranging Signal Pretreatment unit, comprise input end, blind area, left side probe output terminal, blind area, right side probe output terminal, send out ripple control circuit, lobe control circuit, signal amplification control circuit and squelch control circuit, wherein, this Signal Pretreatment unit receives the control signal that sends of car body controller by input end and its data is sent to car body controller, lobe control circuit controls, the utility model structure is simple, lobe control circuit is utilized to control the search coverage popped one's head in blind area, a ripple control circuit is utilized to control ultrasonic intensity, realize hyperacoustic power and regional change, and then realize carrying out dynamic monitoring to blind area.
Description
Technical field
The utility model relates to vehicle security drive field, is specifically related to a kind of ultrasonic ranging Signal Pretreatment unit.
Background technology
In vehicle travel process, driver observes road and the vehicle condition at vehicle both sides and rear by the rearview mirror of front window both sides.Because the visual field of vehicle mirrors is not enough, in driver drives vehicle way, there is the blind area of visualization in its vehicle window both sides, driver cannot observe in this region whether have vehicles or pedestrians by rearview mirror all the time.Therefore, in the driving such as vehicle lane change, doubling link, there is potential safety hazard.
For a long time, people are that various technological improvement has been done in the blind area of eliminating vehicle, such as, and double curvature rearview mirror, side-looking camera image technology, microwave or laser ranging technique, ultrasonic listening technology etc.The existing backsight blind area monitoring system of ultrasonic wave principle that utilizes is formed by adopting one group of ultrasonic probe and a controller and display unit.The echoed signal of barrier in search coverage is lighted LED alarm lamp or is driven buzzer alert by ultrasonic probe after delivering to controller process.This product structure simply can self-organizing system, completing alone monitoring and warning function. current ultrasonic probe finding range is greatly about about 1.5 meters, the requirement that 5 meters of regions are monitored in vehicle blind zone can not be adapted to, and the range of signal that this series products is launched is fixing, the state that its function and job control and vehicle travel has nothing to do, therefore the real-time of this blind area monitoring system and security Shortcomings.
Utility model content
In order to make up prior art problem, the purpose of this utility model is to provide a kind of ultrasonic ranging Signal Pretreatment unit, under road conditions and riving condition, can adjust and process ultrasonic signal, realizing blind area dynamic detection function.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of ultrasonic ranging Signal Pretreatment unit, comprise input end, output terminal, send out ripple control circuit and lobe control circuit, output terminal is popped one's head in vehicle blind zone and is connected, and described ripple control circuit is in parallel with lobe control circuit, and described input end is connected with car body controller.
Further, also comprise signal amplification control circuit, described signal amplification control circuit is connected with output terminal, and described signal amplification circuit is in parallel with sending out ripple control circuit.
Further, also comprise squelch control circuit, described squelch control circuit is connected with output terminal, and described squelch control circuit is in parallel with signal amplification control circuit.
The beneficial effects of the utility model: utilize lobe control circuit to control the search coverage popped one's head in blind area, a ripple control circuit is utilized to control ultrasonic intensity, realize hyperacoustic power and regional change, input end of the present utility model is connected with car body controller, by accurately controlling ultrasound wave from car body controller Received signal strength, realize the dynamic monitoring to vehicle blind zone; Signal amplification control circuit and squelch control circuit are optimized process to the ultrasonic signal received and obtain accurate vehicle blind zone state, realize accurate feedback.
Accompanying drawing explanation
Fig. 1 is the utility model ultrasonic ranging Signal Pretreatment cell arrangement schematic diagram.
In accompanying drawing: 1, input end, 2, send out ripple control circuit, 3, lobe control circuit, 4, signal amplification control circuit, 5, squelch control circuit, 6, blind area, left side probe output terminal, 7, blind area, right side probe output terminal.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
Existing ultrasonic signal processing unit is intensity of wave and a lobe of specifying, and signal is directly carried out acousto-optic early warning after receiving the signal of feedback by existing ultrasonic signal processing unit.
As shown in Figure 1, ultrasonic ranging Signal Pretreatment unit of the present utility model comprises input end 1, blind area, left side probe output terminal 6, blind area, right side probe output terminal 7, sends out ripple control circuit 2, lobe control circuit 3, signal amplification control circuit 4 and squelch control circuit 5, wherein, this Signal Pretreatment unit receives by input end 1 control signal that car body controller sends, its data is sent to car body controller by this Signal Pretreatment unit, and lobe control circuit 3 controls lobe.
Along with speed of a motor vehicle change and direction change, need the region of monitoring in requisition for change, therefore control lobe by lobe control circuit 3 thus change hyperacoustic region, realizing dynamic monitoring.
In the process of speed of a motor vehicle change, the ultrasonic signal strength of transmitting, also in change, therefore needs to send out ripple control circuit 2 pairs of ultrasonic intensities and controls.
Along with the raising of the speed of a motor vehicle, ultrasonic reflections signal weakens gradually, signal amplification circuit gain control in probe is manufactured the speed of following by signal amplification control circuit 4 and is suitably adjusted, to obtain the echoed signal compared with high s/n ratio by ultrasonic signal processing unit under the prompting of car body controller vehicle speed signal.
Ultrasound wave signal in rainy day communication process is subject to very large decay, rainy day effect suffered by car body controller analytical calculation ultrasonic ranging, send a signal to squelch control circuit 5, squelch control circuit 5 automatically regulates echoed signal gain and opens filtering noise suppression function.Substantially unaffected under the performance rainy day condition that blind area is monitored.
Send out ripple control circuit 2, lobe control circuit 3, signal amplification control circuit 4 and squelch control circuit 5 in parallel.
Above content is only to the utility model structure example and explanation; affiliated those skilled in the art make various amendment to described specific embodiment or supplement or adopt similar mode to substitute; only otherwise depart from the structure of utility model or surmount this scope as defined in the claims, protection domain of the present utility model all should be belonged to.
Claims (3)
1. a ultrasonic ranging Signal Pretreatment unit, comprise input end and output terminal, output terminal is popped one's head in vehicle blind zone and is connected, it is characterized in that, also comprise and send out ripple control circuit and lobe control circuit, described ripple control circuit is in parallel with lobe control circuit, and described input end is connected with car body controller.
2. a kind of ultrasonic ranging Signal Pretreatment unit according to claim 1, it is characterized in that, also comprise signal amplification control circuit, described signal amplification control circuit is connected with output terminal, and described signal amplification circuit is in parallel with sending out ripple control circuit.
3. a kind of ultrasonic ranging Signal Pretreatment unit according to claim 1, it is characterized in that, also comprise squelch control circuit, described squelch control circuit is connected with output terminal, and described squelch control circuit is in parallel with signal amplification control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420805319.7U CN204439831U (en) | 2014-12-17 | 2014-12-17 | A kind of ultrasonic ranging Signal Pretreatment unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420805319.7U CN204439831U (en) | 2014-12-17 | 2014-12-17 | A kind of ultrasonic ranging Signal Pretreatment unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204439831U true CN204439831U (en) | 2015-07-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420805319.7U Active CN204439831U (en) | 2014-12-17 | 2014-12-17 | A kind of ultrasonic ranging Signal Pretreatment unit |
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| CN (1) | CN204439831U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109828591A (en) * | 2019-03-21 | 2019-05-31 | 上海赛摩物流科技有限公司 | A kind of automatic guided vehicle and its Autonomous Seam Locating Method and device with storage function |
-
2014
- 2014-12-17 CN CN201420805319.7U patent/CN204439831U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109828591A (en) * | 2019-03-21 | 2019-05-31 | 上海赛摩物流科技有限公司 | A kind of automatic guided vehicle and its Autonomous Seam Locating Method and device with storage function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 27 Taoyuan Road, Economic and Technological Development Zone, Hefei City, Anhui Province, 230000 Patentee after: HEFEI SOFTEC AUTO-ELECTRONIC CO.,LTD. Address before: No. 27 Taoyuan Road, Economic and Technological Development Zone, Hefei City, Anhui Province, 230000 Patentee before: HEFEI SOFTEC AUTO-ELECTRONIC Co.,Ltd. |