CN106958390A - A kind of car door opening control system and method tested the speed based on ultrasonic wave - Google Patents
A kind of car door opening control system and method tested the speed based on ultrasonic wave Download PDFInfo
- Publication number
- CN106958390A CN106958390A CN201710286025.6A CN201710286025A CN106958390A CN 106958390 A CN106958390 A CN 106958390A CN 201710286025 A CN201710286025 A CN 201710286025A CN 106958390 A CN106958390 A CN 106958390A
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- Prior art keywords
- switching tube
- circuit
- car
- speed
- control
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B77/00—Vehicle locks characterised by special functions or purposes
- E05B77/54—Automatic securing or unlocking of bolts triggered by certain vehicle parameters, e.g. exceeding a speed threshold
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B81/00—Power-actuated vehicle locks
- E05B81/02—Power-actuated vehicle locks characterised by the type of actuators used
- E05B81/04—Electrical
- E05B81/06—Electrical using rotary motors
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B81/00—Power-actuated vehicle locks
- E05B81/54—Electrical circuits
- E05B81/64—Monitoring or sensing, e.g. by using switches or sensors
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B81/00—Power-actuated vehicle locks
- E05B81/54—Electrical circuits
- E05B81/80—Electrical circuits characterised by the power supply; Emergency power operation
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B83/00—Vehicle locks specially adapted for particular types of wing or vehicle
- E05B83/36—Locks for passenger or like doors
Landscapes
- Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Mechanical Engineering (AREA)
- Power-Operated Mechanisms For Wings (AREA)
Abstract
The invention belongs to traffic safety technical field, there is provided a kind of car door opening control system and method tested the speed based on ultrasonic wave, including the comparison circuit that tests the speed, middle control circuit, trigger control circuit, execution circuit and power circuit；The ranging comparison circuit is by the ultrasonic sensor measurement that is arranged on car come the speed of car, and be compared with preset value, comparative result is exported to trigger control circuit, the middle control circuit controls opening or closing signal and exporting to trigger control circuit for switch in obtaining on car, the trigger control circuit is according to the information output control signal of reception to execution circuit, the execution circuit controls the forward or reverse of car door lock motor according to control signal, so as to control closing or the opening of door lock switch, the power circuit is used to power to the control system.The speed of present invention detection back car, is alarmed and locked car door when speed is too high, is prevented that passenger from occurring traffic accident after opening car door, is improved the security of driving.
Description
Technical field
The invention belongs to traffic safety technical field, and in particular to a kind of to control system based on the car door opening that ultrasonic wave tests the speed
System and method.
Background technology
At present, with the development and the raising of economic level of science and technology, automobile industry is developed rapidly, the work gone out as people
The problem of having, but also occur in that many while automobile comes into huge numbers of families, the thing followed is the frequent hair of traffic accident
It is raw, cause very big personal injury and property loss.Casualty accident caused by wherein being opened the door accidentally because of passenger, every year all in hair
It is raw.
Occupant often can only recognize whether enabling side has vehicles or pedestrians warp by human eye when opening car door
Cross, but occupant does not recognize that rear is run at high speed the automobile that approaches, is directly opened when opening the door under many circumstances
Door is got off to cause the generation of traffic accident, and event and casualties are scratched under often this thing happens, thus urgently
The problem of needing to solve this respect.
The content of the invention
For the deficiency of problem above, the invention provides a kind of car door opening control system tested the speed based on ultrasonic wave and
Method, the speed of present invention detection back car, when speed is too high, is alarmed and locked car door, prevents that passenger from opening car
Bump against with back car behind the door or after getting off and cause the generation of peril, greatly improve the security of driving.
To achieve the above object, a kind of car door opening control system tested the speed based on ultrasonic wave of the present invention, including the ratio that tests the speed
Compared with circuit, middle control remote control circuit, trigger control circuit, execution circuit and power circuit；The ranging comparison circuit is by setting
Carry out the speed of car in the ultrasonic sensor measurement on car, and be compared with preset value, comparative result is exported and controlled to triggering
Circuit processed, the middle control circuit controls opening or closing signal and exporting to trigger control circuit for switch in obtaining on car, described
Trigger control circuit is according to the information output control signal of reception to execution circuit, and the execution circuit is according to control signal control
The forward or reverse of car door lock motor, so as to control closing or the opening of door lock switch, the power circuit is used to give the control
System power supply processed.
Preferably, the comparison circuit that tests the speed includes ultrasonic sensor, process chip and switching tube Q1, supersonic sensing
The control input of device terminates the control output end of process chip, and the return output termination process chip U1's of ultrasonic sensor connects
Receive input, light emitting diode D1 and resistance R1 ground connection of first output end through being sequentially connected in series of the process chip, the place
Light emitting diode D2 and resistance R2 ground connection of the second output end of chip through being sequentially connected in series are managed, the second of the process chip U1 is defeated
Go out the base stage that end also meets switching tube Q1, switching tube Q1 resistance R3 and buzzer Y1 of the colelctor electrode through being sequentially connected in series connect power supply, institute
The emitter stage for stating switching tube Q1 is grounded through resistance R4.
Preferably, the model HC-SR40 that the ultrasonic sensor is used.
Preferably, the Light-Emitting Diode D1 is green LED lamp, and the light emitting diode D2 is red LED lamp.
Preferably, the trigger control circuit includes OR gate, switching tube Q2, switching tube Q3 and trigger, switching tube Q1's
Emitter stage connects the first input end of OR gate, and the second input of the output termination OR gate of middle control circuit, the output termination of OR gate is opened
Pipe Q2 base stage is closed, switching tube Q2 grounded emitter, switching tube Q2 colelctor electrode connects power supply, switching tube Q2 collection through resistance R6
Electrode also connects switching tube Q3 base stage, and switching tube Q3 colelctor electrode connects power supply through resistance R7, and switching tube Q3 emitter stage is through resistance
R8 is grounded, and switching tube Q3 emitter stage also connects the S inputs of trigger, and the output end of OR gate connects switching tube Q3 hair through resistance R5
Emitter-base bandgap grading, the output end of OR gate also connects the R input of trigger through NOT gate, and the output end output control signal of trigger is performed electricity
Road.
Preferably, the power circuit includes voltage stabilizing chip, and vehicle-mounted 12V dc sources are through switching K1 access voltage stabilizing chips
Input, diode D3 of the output end through reversal connection of voltage stabilizing chip is grounded, also exports 5V stable DC voltages through inductance L1.
Preferably, the model LM2596 that the voltage stabilizing chip is used.
A kind of car door opening control method tested the speed based on ultrasonic wave, is comprised the following steps that：During vehicle shutdown, switch K1 is closed
Close, ultrasonic sensor starts to detect the distance of back car；The information of collection is sent to process chip by ultrasonic sensor,
Process chip calculates the speed for carrying out car and is compared with pre-set velocity value；When carrying out vehicle speed more than preset value, red LED lamp
Bright and control trigger sends control signal while buzzer warning, and control door lock switch is closed；It is less than in advance when carrying out vehicle speed
If during value, green LED lamp is bright, by middle control switch come control trigger sends control signal, control door lock switch closing or
Open.
A kind of car door opening control system tested the speed based on ultrasonic wave provided from such scheme, the present invention and side
Method, the speed of present invention detection back car, when speed is too high, is alarmed and locked car door, prevents that passenger getting off car from being come
Car is injured, and greatly improves the security of driving.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art
The accompanying drawing to be used needed for embodiment or description of the prior art is briefly described.In all of the figs, similar element
Or part is general by similar reference mark.In accompanying drawing, each element or part might not be drawn according to actual ratio.
Fig. 1 is the structured flowchart of control circuit in the present embodiment；
Fig. 2 is comparison circuit and the circuit structure diagram of trigger control circuit of being tested the speed in the present embodiment；
Fig. 3 is circuit construction of electric power figure in the present embodiment.
Embodiment
Embodiments of the invention are described in detail below in conjunction with accompanying drawing.Following examples are only used for clearer
Ground illustrates the product of the present invention, therefore is intended only as example, and can not be limited the scope of the invention with this.
Embodiment：
A kind of car door opening control system tested the speed based on ultrasonic wave is present embodiments provided, as shown in FIG. 1 to 3, bag
Include the comparison circuit that tests the speed, middle control remote control circuit, trigger control circuit, execution circuit and power circuit；The ranging comparison circuit
By the ultrasonic sensor measurement that is arranged on car come the speed of car, and it is compared with preset value, comparative result is exported
To trigger control circuit, it is described it is middle control circuit obtain car in control switch open or close signal and export control to triggering electricity
Road, the trigger control circuit is according to the information output control signal of reception to execution circuit, and the execution circuit is according to control
Signal controls the forward or reverse of car door lock motor, so as to control closing or the opening of door lock switch, the power circuit is used
Powered in the control system.
The speed of back car is detected in the present embodiment by ultrasonic sensor, when speed is too high is more than preset value,
Alarmed and locked car door, prevent that passenger getting off car from being carried out car injury, the security of driving is greatly improved, preset when speed is less than
During value, closing or the opening of car door lock are controlled by in-car original middle control switch.
As shown in Fig. 2 the comparison circuit that tests the speed includes ultrasonic sensor, process chip and switching tube Q1, ultrasonic wave
The control input of sensor terminates the control output end of process chip, the return output termination process chip U1 of ultrasonic sensor
Reception input, the first output end of the process chip light emitting diode D1 and resistance R1 ground connection through being sequentially connected in series, institute
State the second output end of process chip light emitting diode D2 through being sequentially connected in series and resistance R2 ground connection, the of the process chip U1
Two output ends also connect switching tube Q1 base stage, and switching tube Q1 resistance R3 and buzzer Y1 of the colelctor electrode through being sequentially connected in series connect electricity
Source, the emitter stage of the switching tube Q1 is grounded through resistance R4.
The model HC-SR40 that the ultrasonic sensor is used.
The Light-Emitting Diode D1 is green LED lamp, and the light emitting diode D2 is red LED lamp.
The Light-Emitting Diode D1 is green LED lamp, and the light emitting diode D2 is red LED lamp.In the present embodiment
Ultrasonic sensor detection in real time carrys out the distance of car, and the range information gathered is sent to process chip, process chip root
The speed for carrying out car is calculated according to default computing formula, according to the distance value not gathered in the same time can obtain come the displacement of car and when
Between, it must be arrived the speed of car according to displacement and time.When carrying out vehicle speed less than preset value, the first output end output high level,
Green LED lamp is bright, represents safety, and car door lock controls it to open and close by middle control switch or remote control switch；It is big when carrying out vehicle speed
When preset value, the second output end output high level, red LED lamp is bright, and buzzer warning represents dangerous, car door is locked.
As shown in Fig. 2 the trigger control circuit includes OR gate, switching tube Q2, switching tube Q3 and trigger, switching tube Q1
Emitter stage connect the first input end of OR gate, the second input of the output termination OR gate of middle control circuit, the output termination of OR gate
Switching tube Q2 base stage, switching tube Q2 grounded emitter, switching tube Q2 colelctor electrode connects power supply through resistance R6, switching tube Q2's
Colelctor electrode also connects switching tube Q3 base stage, and switching tube Q3 colelctor electrode connects power supply through resistance R7, and switching tube Q3 emitter stage is through electricity
R8 ground connection is hindered, switching tube Q3 emitter stage also connects the S inputs of trigger, and the output end of OR gate connects switching tube Q3's through resistance R5
Emitter stage, the output end of OR gate also connects the R input of trigger through NOT gate, and the output end output control signal of trigger is to execution
Circuit.The trigger is made up of two nor gates, as shown in Figure 2.
As shown in figure 3, the power circuit includes voltage stabilizing chip, vehicle-mounted 12V dc sources access steady through brake switch K1
The input of chip is pressed, diode D3 of the output end through reversal connection of voltage stabilizing chip is grounded, also exports 5V stable DCs through inductance L1
Voltage.The model LM2596 that the voltage stabilizing chip is used.The present embodiment is controlled whether the system works by brake switch, when
Automobile is out of service, after driver touches on the brake, and brake switch closure, the system is started working, and ultrasonic sensor starts detection
Carry out vehicle speed.
A kind of car door opening control method tested the speed based on ultrasonic wave, is comprised the following steps that：During vehicle shutdown, brake switch
K1 is closed, and ultrasonic sensor starts to detect the distance of back car；The information of collection is sent to processing by ultrasonic sensor
Chip, process chip calculates the speed for carrying out car and is compared with pre-set velocity value；When carrying out vehicle speed more than preset value, represent
Back car fast approaching, dangerous, red LED lamp is bright while buzzer warning, and control trigger sends control signal, control
Door lock switch processed is closed, and now car door is locked, and middle control switch is in failure state, and passenger can not open car door；When carrying out speed
When degree is less than preset value, represent that back car is approached at a slow speed, safety, green LED lamp is bright, controlled by the original middle control switch of in-car
Trigger processed sends control signal, controls closing or the opening of door lock switch, and central control switch is opened after car door lock, Cheng Kekai
Door handle can just open car door.
In the present embodiment, when detecting the speed for carrying out car more than preset value, the high electricity of the output end of process chip second output
Flat, red LED lamp is bright and buzzer warning, switching tube Q1 conductings, OR gate output high level, and switching tube Q2 and switching tube Q3 are led
Logical, the S inputs of trigger are that high level, R input are low level, trigger output high-level control signal, controlled motor
Rotate forward, car door is locked, and passenger can not open car door.When detection, which carrys out vehicle speed, is less than preset value, the output end of process chip first
High level is exported, green LED lamp is bright, switch Q1 cut-offs, the output signal of middle control circuit determines the output state of OR gate, in coming
Control switchs to control the forward or reverse of car door lock motor, so as to control opening or closing for car door.When central control switch is closed,
Middle to control circuit output high level, then OR gate exports high level, switching tube Q2 and switching tube Q3 conductings, and the S inputs of trigger are
High level, R input are low level, and trigger output high-level control signal, controlled motor is rotated forward, and car door lock is closed；It is central
Control switch open when, middle control circuit output low level, then OR gate output low level, switching tube Q2 and switching tube Q3 cut-off, triggering
The S inputs of device are that low level, R input are high level, trigger output low level control signal, controlled motor reversion, car
Door-lock opening.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to foregoing embodiments, it will be understood by those within the art that：It is still
Technical scheme described in foregoing embodiments can be modified, or which part or all technical characteristic are carried out
Equivalent；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technical side
The scope of case, it all should cover among the claim of the present invention and the scope of specification.
Claims (8)
1. a kind of car door opening control system tested the speed based on ultrasonic wave, it is characterised in that：Including the comparison circuit that tests the speed, middle control electricity
Road, trigger control circuit, execution circuit and power circuit；The ranging comparison circuit passes through the supersonic sensing that is arranged on car
Device measurement carrys out the speed of car, and is compared with preset value, and comparative result is exported to trigger control circuit, the middle control circuit
What control was switched in obtaining on car opens or closes signal and exports to trigger control circuit, and the trigger control circuit is according to reception
Information output control signal to execution circuit, the execution circuit controls the rotating forward or anti-of car door lock motor according to control signal
Turn, so as to control closing or the opening of door lock switch, the power circuit is used to power to the control system.
2. a kind of car door opening control system tested the speed based on ultrasonic wave according to claim 1, it is characterised in that：It is described
The comparison circuit that tests the speed is included at ultrasonic sensor, process chip and switching tube Q1, the control input termination of ultrasonic sensor
Manage the control output end of chip, the return output termination process chip U1 of ultrasonic sensor reception input, the processing
Light emitting diode D1 and resistance R1 ground connection of first output end of chip through being sequentially connected in series, the second output end of the process chip
Light emitting diode D2 and resistance R2 ground connection through being sequentially connected in series, the second output end of the process chip U1 also connect switching tube Q1's
Base stage, switching tube Q1 resistance R3 and buzzer Y1 of the colelctor electrode through being sequentially connected in series connect power supply, the emitter stage of the switching tube Q1
It is grounded through resistance R4.
3. a kind of car door opening control system tested the speed based on ultrasonic wave according to claim 2, it is characterised in that：It is described
The model HC-SR40 that ultrasonic sensor is used.
4. a kind of car door opening control system tested the speed based on ultrasonic wave according to claim 2, it is characterised in that：It is described
Light-Emitting Diode D1 is green LED lamp, and the light emitting diode D2 is red LED lamp.
5. a kind of car door opening control system tested the speed based on ultrasonic wave according to claim 2, it is characterised in that：It is described
Trigger control circuit includes OR gate, switching tube Q2, switching tube Q3 and trigger, and it is first defeated that switching tube Q1 emitter stage connects OR gate
Enter end, the second input of the output termination OR gate of middle control circuit, the output termination switching tube Q2 of OR gate base stage, switching tube Q2
Grounded emitter, switching tube Q2 colelctor electrode connects power supply through resistance R6, and switching tube Q2 colelctor electrode also connects switching tube Q3 base
Pole, switching tube Q3 colelctor electrode connects power supply through resistance R7, and switching tube Q3 emitter stage is grounded through resistance R8, switching tube Q3 transmitting
Pole also connects the S inputs of trigger, and the output end of OR gate connects switching tube Q3 emitter stage through resistance R5, and the output end of OR gate is also passed through
NOT gate connects the R input of trigger, and the output end output control signal of trigger is to execution circuit.
6. a kind of car door opening control system tested the speed based on ultrasonic wave according to claim 1, it is characterised in that：It is described
Power circuit include voltage stabilizing chip, vehicle-mounted 12V dc sources through switch K1 access voltage stabilizing chip input, voltage stabilizing chip it is defeated
Go out diode D3 ground connection of the end through reversal connection, also export 5V stable DC voltages through inductance L1.
7. a kind of car door opening control system tested the speed based on ultrasonic wave according to claim 6, it is characterised in that：It is described
The model LM2596 that voltage stabilizing chip is used.
8. a kind of car door opening control method tested the speed based on ultrasonic wave based on the control system described in claim 1, it is special
Levy and be：Comprise the following steps that：During vehicle shutdown, switch K1 closures, ultrasonic sensor starts to detect the distance of back car；
The information of collection is sent to process chip by ultrasonic sensor, and process chip calculates the speed for carrying out car and entered with pre-set velocity value
Row compares；When carrying out vehicle speed more than preset value, red LED lamp is bright while buzzer warning, and control trigger sends control
Signal, control door lock switch is closed；When carrying out vehicle speed less than preset value, green LED lamp is bright, controls to touch by middle control switch
Hair device sends control signal, controls closing or the opening of door lock switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710286025.6A CN106958390A (en) | 2017-04-25 | 2017-04-25 | A kind of car door opening control system and method tested the speed based on ultrasonic wave |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710286025.6A CN106958390A (en) | 2017-04-25 | 2017-04-25 | A kind of car door opening control system and method tested the speed based on ultrasonic wave |
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| Publication Number | Publication Date |
|---|---|
| CN106958390A true CN106958390A (en) | 2017-07-18 |
Family
ID=59483801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710286025.6A Pending CN106958390A (en) | 2017-04-25 | 2017-04-25 | A kind of car door opening control system and method tested the speed based on ultrasonic wave |
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| CN (1) | CN106958390A (en) |
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| CN102745162A (en) * | 2012-02-10 | 2012-10-24 | 浙江吉利汽车研究院有限公司 | Car door security system assembly and control method thereof |
| CN104875679A (en) * | 2015-06-01 | 2015-09-02 | 吉林大学 | Automobile door opening safety avoidance system and control method thereof |
| CN205256167U (en) * | 2015-12-09 | 2016-05-25 | 上海大学 | When opening door, car has pedestrians and vehicles reminder system behind car |
| CN205951821U (en) * | 2016-07-25 | 2017-02-15 | 南京信息工程大学 | Car anticollision early -warning system that opens door based on bluetooth |
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2017
- 2017-04-25 CN CN201710286025.6A patent/CN106958390A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008156829A (en) * | 2006-12-21 | 2008-07-10 | Fujitsu Ten Ltd | Door lock control device and door lock control method |
| KR20100004567A (en) * | 2008-07-04 | 2010-01-13 | 주식회사 만도 | Vehicle control apparatus |
| CN101695910A (en) * | 2009-10-22 | 2010-04-21 | 浙江大学 | System for guaranteeing safe opening of vehicle door |
| CN102745162A (en) * | 2012-02-10 | 2012-10-24 | 浙江吉利汽车研究院有限公司 | Car door security system assembly and control method thereof |
| CN104875679A (en) * | 2015-06-01 | 2015-09-02 | 吉林大学 | Automobile door opening safety avoidance system and control method thereof |
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Application publication date: 20170718 |
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