CN101612930A - Automotive safety crime prevention device and method - Google Patents
Automotive safety crime prevention device and method Download PDFInfo
- Publication number
- CN101612930A CN101612930A CN200810111476A CN200810111476A CN101612930A CN 101612930 A CN101612930 A CN 101612930A CN 200810111476 A CN200810111476 A CN 200810111476A CN 200810111476 A CN200810111476 A CN 200810111476A CN 101612930 A CN101612930 A CN 101612930A
- Authority
- CN
- China
- Prior art keywords
- distance
- signal
- unit
- safety
- safety precaution
- Prior art date
- 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.)
- Granted
Links
Images
Landscapes
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
The invention provides a kind of automotive safety crime prevention device, comprising: control unit, to the gating unit output pulse signal, and control gating unit strobe signal; Receive the detection signal that detecting unit produces according to reflected signal; Handle according to output pulse signal and time difference of receiving described detection signal, send cue according to result; Gating unit is according to the control strobe signal and the reflected signal of control unit; Amplifying unit amplifies the impulse singla of described gating unit gating; Sensing unit is used to launch the impulse singla of amplification and receives reflected signal; Detecting unit detects output detection signal to the reflected signal of described gating unit gating; Tip element is pointed out according to cue.The present invention also provides a kind of automotive safety prevention method.The present invention points out the user the situation that has object to be within the safety precaution distance, prevents the invaded or destruction of automobile, thereby improves vehicle safety.
Description
Technical field
The present invention relates to electronic security(ELSEC) precautionary technology field, particularly a kind of automotive safety crime prevention device and method.
Background technology
Existing automotive safety precautionary technology mainly adopts the mode of password authentification or mechanical fixation, reaches to prevent the stolen purpose of automobile.Prior art can reduce the stolen risk of automobile to a certain extent, but then can't realize reporting to the police and prevention for automobile being destroyed the situation of obtaining property.Along with the popularization and application of automobile and the growth of safety performance requirement, need and in time point out, remind the user in time to take precautions against, thereby the reduction automobile is invaded or the technology of destruction possibility the security risk that may exist.
Summary of the invention
The invention provides a kind of automotive safety crime prevention device, main purpose is to vehicle intrusion or destroys risk and point out, thereby reduces the possibility that automobile is invaded or destroy.
The invention provides a kind of automotive safety crime prevention device, comprising: control unit, to the gating unit output pulse signal, and control gating unit strobe signal; Receive the detection signal that detecting unit produces according to reflected signal; Handle according to output pulse signal and time difference of receiving described detection signal, send cue according to result; Gating unit is according to the control strobe signal and the reflected signal of control unit; Amplifying unit amplifies the impulse singla of described gating unit gating; Sensing unit is used to launch the impulse singla of amplification and receives reflected signal; Detecting unit detects output detection signal to the reflected signal of described gating unit gating; Tip element is pointed out according to cue.
Preferably, described processing is to determine distance between object and the automobile according to the impulse singla of output and time difference of receiving described detection signal, and with the safety precaution of setting apart from relatively, obtain distance between object and the automobile whether less than the result of safety precaution distance.
Preferably, described gating unit comprises at least one passage, selects wherein at least one passage output pulse signal.
Preferably, shown in the automotive safety crime prevention device also comprise input block, receive user instruction and also send to control unit.
Preferably, described sensing unit comprises a plurality of sensors, and at least one sensor sends the impulse singla of amplification respectively or jointly, and receives reflected signal respectively.
Preferably, described detecting unit comprises elementary amplifying circuit, frequency selection circuit and secondary amplification circuit, wherein said elementary amplifying circuit amplifies described reflected signal, by frequency selection circuit the reflected signal of elementary amplification being carried out frequency-selecting handles, output frequency-selecting signal carries out secondary amplification by secondary amplification circuit to the frequency-selecting signal again.
Preferably, described detecting unit also comprises switch circuit, and this switch circuit is connected with secondary amplification circuit, is used to amplify the reflected signal through secondary amplification.
The present invention also proposes a kind of automotive safety prevention method, adopts sensor to realize object is pointed out near the situation of automobile, comprising: the step of setting the safety precaution distance; Step according to object around the safety precaution distance detecting; Object and automobile distance are sent the step of prompting less than the situation of safety precaution distance to the user.
Preferably, the step of described setting safety precaution distance comprises: get acquiescence safety precaution distance; Object around detecting obtains detecting distance; Judge whether to adopt and detect apart from revising the safety precaution distance; Revise the safety precaution distance, to detect the safety precaution distance of distance as safety precaution distance or employing acquiescence.
Preferably, described step according to object around the safety precaution distance detecting comprises: choose a sensor; Control sensor emission impulse singla; Sensor received pulse signal runs into the reflected signal that object produces; Handle with the time difference that receives reflected signal according to sending impulse singla, determine distance between object and the automobile.
For at least one sensor, one is chosen in circulation, carries out described step according to object around the safety precaution distance detecting respectively.
The present invention gives chapter and verse the time difference that control unit sends impulse singla and reception detection signal, determines the distance of object and automobile, and whether distance between object and the automobile is judged within the safety precaution distance of setting.To there being object to be in situation within the safety precaution distance, Tip element is pointed out according to the cue that control unit sends, thereby to invasion or destroy the automobile risk and point out, improves vehicle safety.
Description of drawings
Fig. 1 is the first embodiment of the invention principle schematic;
Fig. 2 is the second embodiment of the invention principle schematic;
Fig. 3 is a second embodiment of the invention detecting unit principle schematic;
Fig. 4 is another scheme drawing of third embodiment of the invention detecting unit;
Fig. 5 is a fourth embodiment of the invention automotive safety prevention method schematic flow sheet;
Fig. 6 is the schematic flow sheet that fifth embodiment of the invention is set the safety precaution distance;
Fig. 7 is that sixth embodiment of the invention is according to object schematic flow sheet around the safety precaution distance detecting.
The realization of the object of the invention, functional characteristics and advantage will be in conjunction with the embodiments, are described further with reference to accompanying drawing.
The specific embodiment
The present invention proposes the automotive safety crime prevention device, and the time difference of being sent impulse singla and being received detection signal by control unit is determined the distance of object and automobile, to distance between object and the automobile whether the safety precaution of setting apart within judge.To there being object to be in situation within the safety precaution distance, Tip element is pointed out according to the cue that control unit sends, thereby can point out invasion or the risk of destroying automobile.
The present invention proposes first embodiment, as shown in Figure 1, is automotive safety crime prevention device principle schematic.Described automotive safety crime prevention device provides power supply by automobile, comprises control unit 11, gating unit 12, amplifying unit 13, sensing unit 14, detecting unit 15 and Tip element 16.Described control unit 11 is used for to gating unit 12 output pulse signals, and control gating unit 12 strobe signal; Receive the detection signal that detecting unit 15 produces according to reflected signal, handle, send cue according to result according to output pulse signal and time difference of receiving detection signal; Described gating unit 12 is according to the control strobe signal and the reflected signal of control unit 11; The impulse singla of 13 pairs of gating unit 12 gatings of described amplifying unit amplifies; Described sensing unit 14 is used to launch the impulse singla through amplifying and receives reflected signal; The reflected signal of 15 pairs of described gating unit 12 gatings of described detecting unit detects output detection signal; Described Tip element 16 is pointed out according to the cue that control unit 11 sends.
The working process of present embodiment is: control unit 11 output pulse signals and control signal are given gating unit 12, and gating unit 12 is promptly selected at least one passage output pulse signal according to the control signal strobe signal, and impulse singla is sent to amplifying unit 12.The impulse singla that 12 pairs of gating unit 12 gatings of amplifying unit are sent amplifies, and will be defeated by sensing unit 14 through the impulse singla that amplifies, by the impulse singla of sensing unit 14 emissions through amplifying.Produce reflected signal when the amplification impulse singla of emission runs into object, sensing unit 14 receives this reflected signal, and sends to gating unit 12.Gating unit 12 is promptly selected the reflected signal input channel according to the control signal gating reflected signal of control unit 11.The reflected signal of 15 pairs of gatings of detecting unit detects, and the detection signal that produces is sent to control unit 11.Control unit 11 was handled according to output pulse signal and reception detection signal time difference, determine distance between object and the automobile, this distance and the safety precaution distance set are compared, obtain distance between object and the automobile whether less than the result of safety precaution distance.If between object and the automobile distance less than the safety precaution distance then control unit 11 send cue to Tip element 16, point out by Tip element 16; Otherwise control unit 11 does not send cue, and Tip element 16 is not pointed out.
Above-mentioned safety precaution distance is predefined, is to adapt to actual conditions, and the safety precaution distance of present embodiment also can be according to actual conditions correction or setting, or sets according to user instruction.
The present invention also proposes second embodiment on the basis of the foregoing description.As shown in Figure 2, described automotive safety crime prevention device also comprises input block 17, is used to receive user instruction and sends to control unit 11.Input block 17 comprises switch and apart from selection key, wherein said switch is used to control the opening and closing of described automotive safety crime prevention device; Describedly be used to set the safety precaution distance apart from selection key.
The gating unit 12 of present embodiment is according to control signal strobe signal and reflected signal.Described amplifying unit 13 can comprise a plurality of amplifying circuits, is used for the impulse singla of gating unit 12 gatings is amplified.Described sensing unit 14 can comprise a plurality of sensors, is used for respectively or the common impulse singla of launching through amplifying unit 12 amplifications, and receives reflected signal respectively.The reflected signal of 15 pairs of described gating unit 12 gatings of described detecting unit detects, and output detection signal.Described Tip element 16 is pointed out according to the cue that control unit 11 sends.Described a plurality of amplifying circuit is corresponding with described a plurality of sensors, and promptly an amplifying circuit is connected with a sensor.
As described in Figure 3, be present embodiment detecting unit 15 physical circuit scheme drawings.Described detecting unit 15 comprises elementary amplifying circuit 151, frequency selection circuit 152 and secondary amplification circuit 153.The reflected signal of 151 pairs of gating unit 12 gatings of described elementary amplifying circuit carries out elementary amplification, exports elementary amplification reflected signal.The reflected signal of 152 pairs of elementary amplifications of frequency selection circuit carries out frequency-selecting, promptly selects the reflected signal identical with pulse signal frequency, and output frequency-selecting signal.153 pairs of frequency-selecting signals of secondary amplification circuit further carry out secondary amplification, export secondary amplifying signal, and this moment, this secondary amplifying signal was described detection signal.
Present embodiment Tip element 16 is selected buzzer phone and/or LED for use; Control unit 11 is selected micro controller system PIC16F72 for use; Gating unit 12 is selected the two-way gate CD4052 of a slice four-way for use, and described four-way comprises first passage, second channel, third channel and four-way.Described sensing unit 14 comprises a plurality of sensors, these a plurality of sensors can comprise first ultrasonic transduter, second ultrasonic transduter, the 3rd ultrasonic transduter and the 4th ultrasonic transduter, a plurality of sensors send the impulse singla of amplification respectively or jointly, and receive reflected signal respectively.Described amplifying unit 13 comprises a plurality of amplifying circuits, i.e. first amplifying circuit, second amplifying circuit, the 3rd amplifying circuit and the 4th amplifying circuit, and described a plurality of amplifying circuits and described a plurality of sensor connect one to one.
Safety precaution distance can be set according to actual conditions, promptly sets the safety precaution distance according to the residing environment of automobile with the distance of object on every side.Specific practice is object around the measured automobiles and the distance between the automobile, this distance and the safety precaution distance of presetting are compared, when distance between object and the automobile less than default safety precaution apart from the time, be the safety precaution distance with distance setting between object and the automobile; When distance between object and the automobile more than or equal to default safety precaution apart from the time, use default safety precaution distance as the safety precaution distance.
Present embodiment also can be set the safety precaution distance according to the user instruction that input block 17 receives.Specifically, be by control unit 11 output control signal and impulse singlas, select at least one passage to export described impulse singla by gating unit 12 according to control signal, and this impulse singla is defeated by amplifying unit 12 amplifies, by the impulse singla of sensing unit 14 emissions through amplifying.Sensing unit 14 receives reflected signal, and the reflected signal that receives is defeated by gating unit 12.Gating unit 12 is according to the control signal gating reflected signal of control unit 11, detected by the reflected signal of 15 pairs of gatings of detecting unit, selects the reflected signal identical with pulse signal frequency, and output detection signal.Control unit 11 receives these detection signals, according to output pulse signal with receive time difference of detection signal, determines distance between object and the automobile, with this distance and default safety precaution apart from comparing setting safety precaution distance for reference.Default safety precaution distance can comprise a plurality of different values, selects to set for the user, and default safety precaution distance and the safety precaution of setting distance can be stored in the control unit 11.
Described automotive safety crime prevention device can be set the safety precaution distance when each startup, parking or environment surrounding automobile change.For example the default safety precaution distance of automobile crime prevention device comprises 1M, 1.5M and three values of 2M, can choose a value 1M from above-mentioned three values according to user's instruction, is made as the safety precaution distance.When automobile environment of living in has object and automobile distance for 0.8M, can be 0.8M then with the safety precaution distance setting.In setting safety precaution distance and after according to user instruction unlatching safety apparatus, object around safety apparatus detects in case discovery has the distance of object and automobile less than the safety precaution distance of setting, just sends prompting.Specify automotive safety crime prevention device working process below in conjunction with example.
At the automobile different directions, left side, right side, front-end and back-end are provided with four ultrasonic transduters respectively, i.e. first ultrasonic transduter, second ultrasonic transduter, the 3rd ultrasonic transduter and the 4th ultrasonic transduter, first ultrasonic transduter is connected with first amplifying circuit, second ultrasonic transduter is connected with second amplifying circuit, the 3rd ultrasonic transduter is connected with the 3rd amplifying circuit, and the 4th ultrasonic transduter is connected with the 4th amplifying circuit.
After the automotive safety crime prevention device is opened, give the two-way gate CD4052 of four-way by micro controller system PIC16F72 output control signal and 40KHZ impulse singla.The two-way gate CD4052 of four-way selects first passage as 40KHZ impulse singla delivery channel according to control signal.The 40KHZ impulse singla amplifies through first amplifying circuit is defeated by first ultrasonic transduter, by the 40KHZ impulse singla of first ultrasonic transduter emission amplification.When the 40KHZ impulse singla that amplifies runs into the reflected signal of object back reflection same frequency, first ultrasonic transduter receives reflected signal, and is defeated by the two-way gate CD4052 of four-way and carries out gating.The reflected signal of 15 pairs of gatings of detecting unit detects, and selects the reflected signal identical with the 40KHZ pulse signal frequency, and output detection signal receives this detection signal by micro controller system PIC16F72.Micro controller system PIC16F72 determines object and automobile left side distance according to the detection signal time difference of output 40KHZ impulse singla and reception.After definite object and automobile left side distance, micro controller system PIC16F72 adopts method same as described above to determine distance between object and automobile right side, the front and back respectively, and its principle of work is identical, repeats no more.
When all ultrasonic transduters determine all between the object of direction separately and the automobile that after the distance, micro controller system PIC16F72 is according to the distance setting safety precaution distance of object and automobile all directions.Exist in the distance of all directions object and automobile less than the pre-if safety precaution distance that the user chooses, described automotive safety crime prevention device is chosen between object and the automobile nearest as the safety precaution distance.If the safety precaution distance that the user chooses is 1M, the automotive safety crime prevention device determines that object and automobile left side distance are 0.8M as pre-, and another object and automobile right side distance are 0.5M, and then the automotive safety crime prevention device is set at the safety precaution distance with 0.5M.
When the distance of object and automobile all directions all more than or equal to the pre-if safety precaution that the user chooses apart from the time, the safety precaution distance setting of choosing with the user is the safety precaution distance.The safety precaution distance of choosing as the user is during for 1M, and the automotive safety crime prevention device determines that object and automobile left side distance are 1.1M, and another object and automobile right side are when being 1.2M, and then the automotive safety crime prevention device is set at the safety precaution distance with 1M.
After described automotive safety crime prevention device is set the safety precaution distance, time-delay a period of time, this delay time can be provided with by control unit 11, object around detecting, in case the distance of finding object and automobile are arranged is just sent prompting less than the safety precaution distance of setting.Specifically, when the safety precaution distance of setting is 0.8M, and the automotive safety crime prevention device detects distance between object and the automobile less than 0.8M, buzzer phone and/or LED are given in micro controller system PIC16F72 output cue, buzzer phone and/or LED send and report to the police and/or luminous prompting according to cue work; If detect distance between object and the automobile more than or equal to 1M, micro controller system PIC16F72 does not export cue and gives buzzer phone and/or LED.
Be 1.5M with the safety precaution distance that should set, when detecting distance between object and the automobile less than 1.5M, buzzer phone and/or LED are given in micro controller system PIC16F72 output cue, and buzzer phone and/or LED send and report to the police and/or luminous prompting according to cue work; If when detecting distance between object and the automobile more than or equal to 1.5M, micro controller system PIC16F72 does not export cue and gives buzzer phone and/or LED.
Present embodiment also proposes can be as required the safety precaution distance of automotive safety crime prevention device to be preset as acquiescence or fixed value, its working process with by selecting safety precaution apart from identical apart from selection key, repeat no more.
The present invention also proposes the 3rd embodiment on the foregoing description basis.As shown in Figure 4, described detecting unit 15 comprises elementary amplifying circuit 151, frequency selection circuit 152 and secondary amplification circuit 153, also comprises switch circuit 154, and described switch circuit 154 is determined conducting according to secondary amplifying signal.When if secondary amplifying signal can make switch circuit 154 conductings, this moment, secondary amplifying signal was detection signal, then control unit 11 is handled according to the detection signal that receives and the impulse singla of output, determines the safety precaution distance that whether distance is being selected between object and the automobile.When if secondary amplifying signal can not make switch circuit 154 conductings, can further amplify secondary amplifying signal by aerotron, output triode amplifying signal, control unit 11 receives this triode amplifying signal, and handle, be detection signal through the secondary amplifying signal that triode amplifies this moment, and this working process is same as the previously described embodiments, repeats no more.
The foregoing description automotive safety crime prevention device is determined the distance of object and automobile according to the impulse singla and the detection signal time difference of reception of control unit 11 output, again by control unit 11 determine between objects and the automobile apart from whether safety precaution apart within; To being in the object within the safety precaution distance, Tip element 16 according to control unit 11 cues point out, thereby can or destroy automobile and point out invasion.
The present invention proposes the automotive safety prevention method, preestablishes the safety precaution distance, uses the distance of the object and the automobile of at least one sensor motor vehicle environment, and whether distance between object and the automobile is judged within the safety precaution distance of setting.The situation that has object to be within the safety precaution distance is pointed out the user, thereby can be pointed out the risk of invasion or destruction automobile.
With reference to Fig. 5, the present invention proposes the 4th embodiment, and the automotive safety prevention method comprises:
Step S1 sets the safety precaution distance;
Step S2 is according to object around the safety precaution distance detecting;
Step S3, whether judgment object and automobile distance be less than the safety precaution distance, if less than then carrying out step S4;
Step S4 sends prompting to the user.
Above-mentioned safety precaution distance is to be used for inspected object whether automobile is had the threshold value of security risk, when the distance of object and automobile on every side less than safety precaution apart from the time, think that this object has security risk to automobile, sends prompting to the user in view of the above.Safety precaution distance can set in advance, also can be according to actual conditions correction or setting, or set according to user instruction.
Present embodiment proposes, and should circulate when being respectively equipped with a plurality of sensor on the automobile different directions and carry out above-mentioned steps S2, step S3 and/or step S4, obtains object and automobile distance respectively until all the sensors, and finishes comparison and/or prompting process.When sensor has only one, only need carry out above-mentioned steps S2, a step S3 and/or step S4.The above-mentioned sensor of choosing can be order, carry out at random or according to other rules.
The present invention proposes the 5th embodiment, and the concrete scheme of setting the safety precaution distance is provided on the foregoing description basis.Present embodiment proposes to send prompting to the user and adopts buzzer phone in conjunction with LED light, to user feedback safety precaution distance setting result; Can establish a plurality of indicator lamps, indicate cooresponding safety distance respectively.
As shown in Figure 6, propose step S1, the detailed process of setting the safety precaution distance comprises:
Step S11 gets acquiescence safety precaution distance;
Step S12 sets the safety precaution distance according to user instruction;
Step S13, object around detecting obtains detecting distance;
Step S14 judges whether to adopt and detects apart from revising the safety precaution distance;
Step S15 revises the safety precaution distance, to detect distance as the safety precaution distance;
Step S16, the safety precaution distance that adopts acquiescence or user to set is returned main flow.
Acquiescence safety precaution distance among the above-mentioned steps S11 preestablishes and stores, for example 1M, 0.5M etc.
Above-mentioned steps S12, setting the safety precaution distance according to user instruction is to wait for that the user imports the instruction of setting the safety precaution distance, if the user does not import and then carries out step S13.Specific practice comprises:
Step S121, timing begins, and the instruction of setting the safety precaution distance is sent in the indicator lamp flicker with the prompting user;
Step S122 judges whether timing reaches scheduled duration, then finishes to set safety precaution apart from flow process according to user instruction if reach, and returns main program; Then do not carry out step S123 if reach;
Step S123 judges whether to receive the instruction of the setting safety precaution distance that the user sends, and then carries out step S124 if receive, otherwise carries out step S122, continues timing;
Step S124, the instruction of the setting safety precaution distance that the parsing user sends is according to instruction and default setting rule setting safety precaution distance;
Step S125 with the timing zero clearing, carries out step S121.
Above-mentioned default setting rule comprises the parsing of user instruction and safety precaution variable in distance rule, for example receive user's instruction by button, the user whenever presses one-touch, the safety precaution distance is just switched one in default a plurality of values, if a plurality of values are respectively 2 meters, 1.5 meters and 1 meter, as user first during button, the safety precaution distance is got 2 meters, the user once more button then value be 1.5 meters; If user's button once more, then become 1 meter etc., with corresponding the lighting of the cooresponding indicator lamp of each value, set the result to user feedback.
Above-mentioned steps S13, object around detecting obtains detection and comprises apart from detailed process:
Step S131 chooses a sensor;
Step S132, control sensor emission impulse singla;
Step S133, sensor received pulse signal run into the reflected signal that object produces;
Step S134 handles with the time difference that receives reflected signal according to sending impulse singla, determines that distance promptly detects distance between object and the automobile.
When being respectively equipped with a plurality of sensor on the automobile different directions, the detailed process of present embodiment circulation carrying out above-mentioned steps S13 is all finished detection and is obtained detecting distance respectively until all the sensors.When having only a sensor, only need carry out one time above-mentioned steps S13.The above-mentioned sensor of choosing can be order, carry out at random or according to other rules.
Above-mentioned steps S14 judges whether to adopt the detection distance to revise the safety precaution distance, is that the safety precaution distance that will detect the setting of distance and above-mentioned steps compares specifically, if detect distance greater than the safety precaution distance, then carries out step S16; Otherwise carry out step S15.
The present invention proposes the 6th embodiment, and the concrete scheme according to object around the safety precaution distance detecting is provided on the foregoing description basis.
With reference to Fig. 7, above-mentioned steps S2 specifically comprises according to object around the safety precaution distance detecting:
Step S21 chooses a sensor;
Step S22, control sensor emission impulse singla;
Step S23, sensor received pulse signal run into the reflected signal that object produces;
Step S24 handles with the time difference that receives reflected signal according to sending impulse singla, determines distance between object and the automobile.
Above-mentioned steps S4 sends prompting to the user, specifically is to adopt LED light and/or buzzer phone to carry out.
Present embodiment proposes, and should circulate when a plurality of sensor and carry out above-mentioned steps S2, step S3 and/or step S4, obtains distance between object and the automobile respectively until all the sensors, and finishes comparison and/or prompting process.When sensor has only one, only need carry out one time above-mentioned steps.The above-mentioned sensor of choosing can be order, carry out at random or according to other rules.
The above only is the preferred embodiments of the present invention; be not so limit claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes specification sheets of the present invention and accompanying drawing content to be done; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (13)
1. automotive safety crime prevention device comprises:
Control unit, to the gating unit output pulse signal, and control gating unit strobe signal; Receive the detection signal that detecting unit produces according to reflected signal; Handle according to output pulse signal and time difference of receiving described detection signal, send cue according to result;
Gating unit is according to the control strobe signal and the reflected signal of control unit;
Amplifying unit amplifies the impulse singla of described gating unit gating;
Sensing unit is used to launch the impulse singla of amplification and receives reflected signal;
Detecting unit detects output detection signal to the reflected signal of described gating unit gating;
Tip element is pointed out according to cue.
2. automotive safety crime prevention device according to claim 1 is characterized in that:
Described processing is to determine distance between object and the automobile according to the impulse singla of output and time difference of receiving described detection signal, and with the safety precaution of setting apart from relatively, obtain distance between object and the automobile whether less than the result of safety precaution distance.
3. automotive safety crime prevention device according to claim 1 and 2 is characterized in that:
Described gating unit comprises at least one passage, selects wherein at least one passage output pulse signal.
4. automotive safety crime prevention device according to claim 1 and 2 is characterized in that:
Described Tip element comprises buzzing warning and/or LED.
5. automotive safety crime prevention device according to claim 1 and 2 is characterized in that:
Shown in the automotive safety crime prevention device also comprise input block, be used to receive user instruction and send to control unit.
6. automotive safety crime prevention device according to claim 1 and 2 is characterized in that:
Described sensing unit comprises a plurality of sensors, and at least one sensor sends the impulse singla of amplification respectively or jointly, and receives reflected signal respectively.
7. automotive safety crime prevention device according to claim 6 is characterized in that:
Described sensor is a ultrasonic transduter.
8. automotive safety crime prevention device according to claim 1 is characterized in that, described detecting unit comprises:
Elementary amplifying circuit is used for described reflected signal is carried out elementary amplification;
Frequency selection circuit is used for the reflected signal of elementary amplification being carried out the frequency-selecting processing, output frequency-selecting signal;
Secondary amplification circuit is used for the frequency-selecting signal is carried out secondary amplification.
9. automotive safety crime prevention device according to claim 8 is characterized in that:
Described detecting unit also comprises switch circuit, and this switch circuit is connected with secondary amplification circuit, is used to amplify the frequency-selecting signal through secondary amplification.
10. an automotive safety prevention method adopts sensor to realize object is pointed out near the situation of automobile, comprising:
Set the step of safety precaution distance;
Step according to object around the safety precaution distance detecting;
Object and automobile distance are sent the step of prompting less than the situation of safety precaution distance to the user.
11. automotive safety prevention method according to claim 10 is characterized in that, the step of described setting safety precaution distance comprises:
Get acquiescence safety precaution distance;
Object around detecting obtains detecting distance;
Judge whether to adopt and detect apart from revising the safety precaution distance;
Revise the safety precaution distance, to detect the safety precaution distance of distance as safety precaution distance or employing acquiescence.
12., it is characterized in that described step according to object around the safety precaution distance detecting comprises according to claim 10 or 11 described automotive safety prevention methods:
Choose a sensor;
Control sensor emission impulse singla;
Sensor received pulse signal runs into the reflected signal that object produces;
Handle with the time difference that receives reflected signal according to sending impulse singla, determine distance between object and the automobile.
13. automotive safety prevention method according to claim 12 is characterized in that:
Choose one at least one sensor circulation, carry out described step respectively according to object around the safety precaution distance detecting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101114767A CN101612930B (en) | 2008-06-26 | 2008-06-26 | Automotive guard and alarm device and automotive guard and alarm method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101114767A CN101612930B (en) | 2008-06-26 | 2008-06-26 | Automotive guard and alarm device and automotive guard and alarm method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101612930A true CN101612930A (en) | 2009-12-30 |
| CN101612930B CN101612930B (en) | 2011-08-17 |
Family
ID=41492860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101114767A Active CN101612930B (en) | 2008-06-26 | 2008-06-26 | Automotive guard and alarm device and automotive guard and alarm method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101612930B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102390341A (en) * | 2011-10-22 | 2012-03-28 | 成都市翻鑫家科技有限公司 | Automotive anti-collision alarm |
| CN102463963A (en) * | 2010-11-09 | 2012-05-23 | 现代自动车株式会社 | System for tracking a stolen-vehicle and method thereof |
| CN104590208A (en) * | 2013-10-31 | 2015-05-06 | 通用汽车环球科技运作有限责任公司 | Methods, systems and apparatus for providing notification that a vehicle has been accessed |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3164439B2 (en) * | 1992-10-21 | 2001-05-08 | マツダ株式会社 | Obstacle detection device for vehicles |
| AU705003B2 (en) * | 1995-06-12 | 1999-05-13 | Toyoda Gosei Co. Ltd. | Information indicator for vehicle |
| JP2002318282A (en) * | 2001-04-24 | 2002-10-31 | Matsushita Electric Works Ltd | Obstacle detecting device |
| CN2605582Y (en) * | 2003-03-28 | 2004-03-03 | 邓国明 | Primary instrument display reverse radar apparatus |
| CN2768024Y (en) * | 2005-01-18 | 2006-03-29 | 广东铁将军防盗设备有限公司 | Automobile anti-crash radar with language notes |
| CN2938140Y (en) * | 2006-06-12 | 2007-08-22 | 黄席樾 | Prealarm system of ultrasonic anti-collision for vehicle running |
-
2008
- 2008-06-26 CN CN2008101114767A patent/CN101612930B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102463963A (en) * | 2010-11-09 | 2012-05-23 | 现代自动车株式会社 | System for tracking a stolen-vehicle and method thereof |
| CN102390341A (en) * | 2011-10-22 | 2012-03-28 | 成都市翻鑫家科技有限公司 | Automotive anti-collision alarm |
| CN104590208A (en) * | 2013-10-31 | 2015-05-06 | 通用汽车环球科技运作有限责任公司 | Methods, systems and apparatus for providing notification that a vehicle has been accessed |
| CN104590208B (en) * | 2013-10-31 | 2017-12-08 | 通用汽车环球科技运作有限责任公司 | Method, system and the equipment for the notice being approached for providing vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101612930B (en) | 2011-08-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102768773B (en) | Automatic walk-away detection | |
| CN101612930B (en) | Automotive guard and alarm device and automotive guard and alarm method | |
| US20150012176A1 (en) | Detection method for operating gestures | |
| CN101339249A (en) | Obstacle detection apparatus | |
| US20020140549A1 (en) | Telephone controlled vehicle intrusion sensor and report apperatus | |
| US20060238337A1 (en) | Security system with remote control and proximity detector | |
| CN101169479A (en) | Reversing radar for preventing error judgement and its method | |
| CN101896024A (en) | Lighting device | |
| US6919567B2 (en) | Active infrared sensor | |
| US20190351870A1 (en) | Defense of a relay station attack | |
| WO2017005499A1 (en) | Occupancy messaging in wireless networked lighting system | |
| US8200386B2 (en) | Control device of a four-wheel drive electric vehicle and method thereof | |
| JP5460550B2 (en) | Electronic key system | |
| JP2009250672A (en) | Obstacle detection device | |
| KR101618563B1 (en) | Control apparatus of electric parking brake and control method thereof | |
| CN201122338Y (en) | Alarm | |
| CN106976459A (en) | The control device and method of auto control system in vehicles and its pre- preventing misoperation of accelerator | |
| CN102236944A (en) | Infrared detection system applicable to alarm field | |
| KR20120045703A (en) | Preventing method and device for wrong detection of vehicle invasion | |
| US20210142599A1 (en) | Portable machine | |
| CN108109244A (en) | A kind of PEPS controller PE blocking methods | |
| US20070274157A1 (en) | Method For Detecting an Obstacle In the Detection Area of a Detection Device | |
| CN109640227B (en) | Method for designing alarm volume of automobile combination instrument | |
| CN107389977A (en) | A kind of direction automatic recognition system and recognition methods | |
| JPH08184666A (en) | Radar distance measuring equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |