CN2858904Y - Ultrasonic spacing and anti-climbing checking device for electric extensible door - Google Patents
Ultrasonic spacing and anti-climbing checking device for electric extensible door Download PDFInfo
- Publication number
- CN2858904Y CN2858904Y CNU2006200549151U CN200620054915U CN2858904Y CN 2858904 Y CN2858904 Y CN 2858904Y CN U2006200549151 U CNU2006200549151 U CN U2006200549151U CN 200620054915 U CN200620054915 U CN 200620054915U CN 2858904 Y CN2858904 Y CN 2858904Y
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- door
- spacing
- electric telescopic
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Abstract
This utility model relates to a checkout gear of prevent climbing and supersonic spacing of the electric telescopic door, measure the length of the opening door and the closing door of the automatic telescopic door and the spacing position of releasing infrared ray using the distance finding principle. And output a control signal to a main control unit MCU, when the main control unit MCU detects the signal of opening door and closing door, the electric engine of the automatic telescopic door is controlled to stop. When the signal of the spacing position of releasing infrared ray is detected, the function of the collision prevention of the infrared ray is out of work so that the electric telescopic door can be switched in the enactment area. After closing the door, the induction is occurred by using the transmitting regularly as the correlation source in the transmission process. When detecting the signal is blocked by the obstacle, the alarm is sounded when people or the obstacle climb the telescopic door so as to achieve the function of prevent climbing.
Description
Technical field
The utility model relates to electric extendable door, specifically, and a kind of electric telescopic door ultrasound wave spacing and the anti climbing detector of collection automatic spacing function and anti-creep warning function one.
Background technology
Current, the limit switch that is used on the electric extendable door is probably opened to be divided into two classes, and a class is a contact, and a class is contactless.Contact is to touch mechanical switch by automatic retractable door when switch puts in place, makes switch closure, and provides a signal, and after MCU read this signal, automatically retractable door just stopped or making other corresponding action; And contactless switch mostly buries detectable target object underground, as magnet etc., detect magnet by detection things such as tongue tubes, tongue tube is installed on the body, when door when burying the position of magnet, tongue tube is conducting just, MCU read Continuity signal and knew just where this may be in this moment, and make control corresponding and move, because the touch switch on the retractable door is because the friction and the collision of machinery, switch also is easy to wearing and tearing, need the solid mechanical structure during installation, comparatively bother, and lean on this mechanical contact to have only also less stable, can cause loose contact, the phenomenon that frame for movement is damaged after collision frequency is many, basically eliminated till now and used, non-contact switch generally adopts spacing underground digging and buries magnet, and the induction of making reed pipe dry up comes identification switch thresholding position, though comparatively stable, but this mode, want excavated earth, place magnet, just cause the destruction on ground, it is also bigger to construct, and tongue tube is because overhead too near and damage easily, on rainy day because factors such as ground humidity also can produce wrong closure, cause signal to misread, potential destabilizing factor is arranged.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of electric telescopic door ultrasound wave spacing and anti climbing detector, is convenient to install, control, and stable performance, to overcome the deficiencies in the prior art.
Technical problem of the present utility model realizes by following scheme: construct a kind of electric telescopic door ultrasound wave spacing and anti climbing detector, some rows that comprise head and connection thereof, it is characterized in that, this head is provided with ultrasonic emitting probe and ultrasonic wave receiving transducer, and tail end door row is provided with and described ultrasonic emitting probe and the corresponding ultrasound reflector of ultrasonic wave receiving transducer, described head is built-in with the EEPROM of main control MCU and connection thereof, counter, indicator lamp and drive motors, and be provided with the anti-creep alarm and be connected with described main control MCU.
According to electric telescopic door ultrasound wave spacing provided by the invention and anti climbing detector, utilize the principle of ultrasonic ranging to measure and open at closing time the length of retractable door automatically, form the anti-creep induced signal with the reciprocal signal that the rule rate is arranged, and passing to main control MCU by control signal, main control MCU is opened at closing time spacing response and the anti-creep response of reporting to the police to these control signals.The length that the automatic retractable door that the control signal of closing the door of opening the door utilizes ultrasonic wave to record is opened at closing time forms.Adopted the function of temperature-compensating, the precision of further control survey, temperature is mended the mode of tasting NTC resistance, with itself integrated AD converter, measure its voltage change that produces because of resistance variations under different temperatures, and obtain current temperature value by the mode of tabling look-up.When system initialization, the length data of the automatic retractable door that records should should be stored among non-volatile EEPROM, can utilize again when having a power failure.The anti-creep induced signal be with ultrasonic wave close the door spacing after, constantly measure the spacing distance of closing the door, when apart from the spacing distance of closing the door of coming out during less than setpoint distance, system is just thought has obstruction to intercept, and begins to send the anti-creep alarm signal.Hyperacoustic reciprocal signal is to communicate by certain agreement.
Realize electric telescopic door ultrasound wave spacing of the present utility model and anti climbing detector, has following advantage: utilize the principle of ultrasonic ranging to measure and open at closing time the length of retractable door automatically, and ultrasonic wave to be frequency have greatly energy is big, the characteristics of straight-line transmitting ripple, good reliability, implement easily, and adopt 16 counter, guarantee the precision of measuring; And effectively solve by temperature self-compensation function because of ultrasonic wave and vary with temperature the problem that wave velocity changes that passes that produces; Also adopt clocklike to transmit, utilize the anti-creep that carries out of its transmission course to respond to, form the anti-creep induced signal, realize the anti-creep warning function when signal is hindered by obstruction when detecting as the correlation source.
Description of drawings
Fig. 1 is the utility model ultrasound wave spacing and anti climbing detector structure block diagram;
Fig. 2 is the oscillogram of the carrier wave of the utility model checkout gear emission;
Fig. 3 is the utility model ultrasound wave spacing and the decoded oscillogram of anti climbing detector;
Fig. 4 is the utility model checkout gear exterior I O interruption subroutine flow chart;
Fig. 5 is the utility model checkout gear counter interruption subroutine flow chart;
Fig. 6 is the flow chart of the utility model checkout gear ultrasonic ranging;
Fig. 7 is the spacing anti-creep circuit theory diagrams of the utility model checkout gear ultrasonic ranging.
The specific embodiment
A kind of electric telescopic door ultrasound wave spacing and anti climbing detector, utilizing hyperacoustic range measurement principle is the length of opening the door and closing the door that automatic retractable door is measured automatic retractable door, and the length of removing the spacing position of infrared rays, and the output control signal sends to main control MCU, when main control MCU detect as open the door and door-closing in-place signal, the motor of controlling automatic retractable door is out of service, remove infrared limit signal when detecting, thereby make the disabler of infrared anti-collision, make electric extendable door can be in the scope of setting switch, close the door spacing after, utilize clocklike transmitting of its transmission course, carry out anti-creep induction, when detecting signal when being hindered by obstruction as the correlation source, thinking has people or obstruction to climb retractable door and send the warning sound, thereby realizes the anti-creep warning.
Ultrasonic wave is a kind of sound wave of frequency greater than 20KHZ, under temperature-resistant situation, pass the almost constant characteristic of wave velocity, it is UCM40T that hyperacoustic transmitting probe of the utility model and receiving transducer adopt respectively, UCM40R, carrier frequency is 40KHZ, filtering IC adopts LM567, and transmitting probe is with the carrier wave of certain rules transmission 40KHZ, and the oscillogram of carrier wave as shown in Figure 2.The ultrasonic wave that transmitting probe emits is through after reflecting, and receiving transducer just can receive the echo of reflection, measures their blanking time, just can calculate the distance between reception and the reverberation, i.e. the length of retractable door.Main control MCU adopts PIC16F73, and dominant frequency is run 20MHZ, and the speed of computing is enough fast, and the respond of IO also can be competent at this high-precision requirement.Temperature measurement module adopts the NTC negative tempperature coefficient thermistor, model NTC103, and the resistance when 20 spend approximately is 10K, AD converter adopts PIC16F73 itself integrated.Block diagram as shown in Figure 1 is with reference to circuit theory diagrams as shown in Figure 7.
Receiving unit through filtered waveform as shown in Figure 3, because after the ultrasonic emitting of band carrier wave, reflection echo can return by straight line, according to S=VT/2, just can calculate and transmit and receive the distance of port from reflecting surface, main control MCU utilizes this principle to calculate the spacing distance of switching threshold position reconciliation infrared rays.Because the characteristic that the biography wave velocity that ultrasonic wave produces because of variations in temperature in addition changes, for door control system, the region span of using is very big, its north is to Harbin, south is to Hainan, their temperature difference might cause the spacing inaccurate problem of retractable door when maximum, therefore for measuring switch thresholding position and infrared spacing distance more exactly, must carry out temperature-compensating to it, the temperature compensation of the utility model patent in the following ways, adopt the thermistor of a negative temperature coefficient, carry out the AD sampling, and with the method for tabling look-up, calculate temperature at that time, and according to this temperature of measuring, hyperacoustic biography wave velocity is proofreaied and correct, so that measure switching threshold position accurately, the distance spacing with infrared rays, the distance of the switching threshold position of reference just as after measuring automatically when changing deposits among the EEPROM by input or system, method during system initialization is such, door is reached the place of door open limit, pinned door open limit initialization key about 2 seconds this moment, then the initialized indicator lamp of door open limit can be bright, the initial work of expression door open limit is finished after the initialized indicator lamp of door open limit can extinguish, system has successfully deposited the distance of door open limit in the data conservation zone of system, the spacing initialization of closing the door is that door is reached the spacing place of closing the door, pin about 2 seconds of the spacing initialization key of closing the door this moment, then closing the door spacing initialized indicator lamp can be bright, the spacing initial work of representing to close the door after the spacing initialized indicator lamp of closing the door extinguishes is finished, the spacing initial work of infrared rays is also carried out according to sample, after initial chemical industry was finished, door just can normally have been walked.
The counter interruption subroutine receives and adopts the external interrupt mode, and the flow chart of its external interrupt subprogram is as 4, shown in Figure 5.Because the dominant frequency of counter is 1/4th of a dominant frequency, i.e. 5M, and be to adopt 16 counter, therefore can guarantee the precision of measuring.Output interface has three holding wires, is respectively door open limit output, the spacing output of closing the door, and infrared spacing output, interface is simple relatively, and can be compatible mutually with existing product.Use as shown in Figure 6, the self-reacting mode of general employing system, at door open limit, it is spacing to close the door respectively, after the spacing place of infrared rays stops, pin key about 2 seconds are set, the system of entering is provided with state, and be provided with indicator lamp this moment can be bright, after about two seconds, indicator lamp is set extinguishes, show that the spacing distance of this position has been provided with success.Main flow chart such as Fig. 4-shown in Figure 6.After the system initialization success, the data of being surveyed can be stored among the EEPROM, during in order to power failure, can reuse, and needn't measure once more again, when automatic retractable door closing the door spacing after, hyperacoustic transmitting probe and receiving transducer just can continue to measure the length of retractable door, and make comparisons with the spacing position of closing the door, if measure the distance weak point spacing distance and relatively of closing the door this moment, so just can measure on the automatic retractable door of this moment and have the climbing of people or other object, just begin anti-creep and report to the police.As shown in Figure 4.
Claims (4)
1, a kind of electric telescopic door ultrasound wave spacing and anti climbing detector, some rows that comprise head and connection thereof, it is characterized in that, this head is provided with ultrasonic emitting probe and ultrasonic wave receiving transducer, and tail end door row is provided with and described ultrasonic emitting probe and the corresponding ultrasound reflector of ultrasonic wave receiving transducer, described head is built-in with EEPROM, counter, indicator lamp and the drive motors of main control MCU and connection thereof, and is provided with the anti-creep alarm and is connected with described main control MCU.
2, electric telescopic door ultrasound wave spacing according to claim 1 and anti climbing detector is characterized in that, are provided with filtering IC and are connected with described ultrasonic wave receiving transducer.
3, electric telescopic door ultrasound wave spacing according to claim 1 and anti climbing detector is characterized in that, comprise also that temperature is mended to taste device, and wherein, temperature measurement module is the NTC negative tempperature coefficient thermistor, himself integrated AD converter.
4, electric telescopic door ultrasound wave spacing according to claim 1 and anti climbing detector is characterized in that, also comprise three core output interfaces, comprise door open limit output, close the door spacing output and infrared spacing output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200549151U CN2858904Y (en) | 2006-02-14 | 2006-02-14 | Ultrasonic spacing and anti-climbing checking device for electric extensible door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200549151U CN2858904Y (en) | 2006-02-14 | 2006-02-14 | Ultrasonic spacing and anti-climbing checking device for electric extensible door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2858904Y true CN2858904Y (en) | 2007-01-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200549151U Expired - Fee Related CN2858904Y (en) | 2006-02-14 | 2006-02-14 | Ultrasonic spacing and anti-climbing checking device for electric extensible door |
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| CN (1) | CN2858904Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112012648A (en) * | 2019-05-30 | 2020-12-01 | 惠州拓邦电气技术有限公司 | Ray tracing trackless electric door anti-climbing control method and trackless electric door |
-
2006
- 2006-02-14 CN CNU2006200549151U patent/CN2858904Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112012648A (en) * | 2019-05-30 | 2020-12-01 | 惠州拓邦电气技术有限公司 | Ray tracing trackless electric door anti-climbing control method and trackless electric door |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: Longgang District of Shenzhen City, Guangdong province Pingshan Shijing Heng Ping Road No. 3 Weijie Technology Park, zip code: 518116 Patentee after: Weijie Electromechanical Technology Co., Ltd., Shenzhen Address before: Ping Shan Street Shenzhen City Office of Guangdong Province Ping Huan community Ma Dong industrial area, zip code: 518118 Patentee before: Weijie Electromechanical Technology Co., Ltd., Shenzhen |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070117 Termination date: 20120214 |