CN1144165C - Lever alarming system - Google Patents
Lever alarming system Download PDFInfo
- Publication number
- CN1144165C CN1144165C CNB001241397A CN00124139A CN1144165C CN 1144165 C CN1144165 C CN 1144165C CN B001241397 A CNB001241397 A CN B001241397A CN 00124139 A CN00124139 A CN 00124139A CN 1144165 C CN1144165 C CN 1144165C
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- lever
- alarming system
- output signal
- detector
- microprocessor
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Abstract
The present invention relates to a lever alarming system which comprises an electromagnetic field sensor and an anti-collision sensor for detecting upper power lines and physical obstacles on a telescopic rod or a path of a cantilever device. The present invention also comprises a hollow cavity which is arranged on a rod, wherein the hollow cavity comprises a sensor and a control unit which makes use of a microprocessor as a base for explaining the output signal of the sensor and providing a sound and feedback controlled signal to prompt an operator with the impending contact and stop the movement of the rod automatically. The alarm hollow cavity has a light source which provides illumination for the moving direction of the rod and can be used as a heating element to prevent ice formation on the hollow cavity.
Description
The present invention relates to warning system, especially relate to a kind of anticollision warning system that is used for expansion link.
Known systems be comprise a plurality of by air pressure, the extensile inside of hydraulic pressure or the machine power operation expansion link partly that links to each other.For example, such expansion link uses widely and is used for promoting antenna is used for the long-distance transmissions video and audio signal in broadcasting industry, such expansion link is also actual to be used in repairing and has cantilever, the truck that comprises a so-called cherry picker, this cherry picker arrives power line, cable and the telephone transmission line that promotes by public the use with the maintenance personal individual.Similarly, lever alarming system of the present invention also is applicable to ladder truck, tower crane, winch and other relevant devices.
Be contained in remote control broadcast antenna on expansion link or the bar through launching rapidly during by TV or broadcasting personnel under the harsh weather conditions of being everlasting in the report disaster.Similarly, the fieldwork personnel usually must send to the service worker lifting and repair the place that power and telephone wire are damaged at inclement weather and night.
Though have the place of good sight line in open area, the rare problem of lifting arm, yet power transmission line and/or physical obstacle are arranged, particularly at night or under the condition of other bad visibilities, maintenance personal's life and equipment are subjected to great danger overhead.Several examples are arranged, take place to contact with line of electric force and collide, personnel are sustained an injury and death, make equipment suffer to damage widely with crown barrier.
Like this, exist thisly need be used for warning user and the power line on the crown or the imminent collision of barrier of other potential dangers that has for such expansion link or arm type device for a warning device in actual contact generation prerequisite, such warning can reduce the operator's who is produced by collision the personal injury and the infringement of equipment widely.
Through big quantity research to the problems referred to above, the invention provides a kind of lever alarming system, this system will soon and before the crown structure generation actual contact of crown power line or other potential danger give the alarm to the operator of cantilever truck or other expansion link devices.
Lever alarming system of the present invention comprises a cavity, be installed in the bar of needs supervision or the highest point of cantilever, and comprise the induction installation of two separation at least, can survey the electric field that produces by crown power transmission line and use a ultrasonic transmitter in the specific short range of cavity, to detect physical obstacle.
This warning cavity also comprises a light source or so-called search light, is used for zone that barre will move to illuminate to improve the ability of operator to device security operation that the warning cavity is installed.
And this warning system comprises a plurality of inclination sensors, and this sensor monitors bar is with respect to the orientation of set horizontality, prevents from tilting or extension during deflection when bar.
When power line that detects the crown or physical obstacle, lever alarming system promptly provides voice signal in car, provide the Control and Feedback signal to control module again, imminent contact of alert operator and rapid moving of locking lever or arm.
The investigative range that lever alarming system of the present invention provided, be designed so that audible alarm has time enough to allow the operator to utilize the motion that manually comes locking lever or arm, and the electric controller to bar provides a control signal, when entering the hazardous location, and stop motion automatically.
According to the above, an object of the present invention is to provide a kind of lever alarming system that is used for such as the expansion link device of cantilever truck, alert operator will soon contact with crown power line or other physical obstacles.
Another object of the present invention provides a lever alarming system that has the sensor device of two separation at least, and this system can survey the existence of an electric field and/or can utilize ultrasound wave or other technologies detection physical obstacle.
Another object of the present invention provides a kind of lever alarming system of light source that comprises and can be used to illuminate the zone that will move of bar, improves the ability of operator's safety control device.
Another object of the present invention provides a kind of lever alarming system that comprises inclination sensor, can be used for feeler with respect to the orientation of horizontality, guarantees device is carried out suitable operation.
A further object of the present invention provides a lever alarming system, can promptly provide voice signal that the Control and Feedback signal is provided again, and alert operator is about to come in contact and automatic locking lever enters moving of hazardous location.
Other purposes of the present invention and advantage are from following description with only become clear the accompanying drawing of the present invention and obviously in order to illustrate.
Fig. 1 is the structural drawing that is installed in the structural bar warning of an expansion link cavity of the present invention.
Fig. 2 is the sectional view of the amplification of a bar warning cavity, shows each position component.
Fig. 3 is the interchange detector that shows warning system of the present invention, crashproof detector, and the circuit of search lamp and inclination sensor interconnects block scheme.
Fig. 4 is that display pole warning system circuit and external voice are reported to the police lamp, the interconnective block scheme of switch and valve.
Fig. 5 is the interconnective block scheme of parts that shows in microcontroller circuit plate and the warning cavity.
Fig. 6 is the wing figure of crashproof detector that shows this system of its parts and circuit.
Fig. 7 is the circuit diagram that exchanges detector that shows this system of its parts and circuit.
The circuit diagram of the control circuit that Fig. 8 should warning system and the element of search lamp.
Fig. 9 is the circuit diagram of the microcontroller circuit plate of this warning system.
Figure 10 is the front view of this system security controls template.
With further reference to accompanying drawing, shown bar warning cavity, this cavity is generally represented with label 100 and is placed in use on the expansion link 25 of cantilever truck-type.According to shown in Figure 2, the zoomed-in view of the parts that bar warning cavity 100 is comprised with it comprises and exchanges (alternating current) detector antenna, generally be expressed as 10, crashproof detector cells, generally be expressed as 11, a light source or so-called search lamp generally are expressed as 12 and whole control module, generally are expressed as 13.
Should be appreciated that cavity 100 must be placed in the peak of expansion link 25 as shown in Figure 1, and its working position generally is that direction makes progress.In order to make this warning system operate as normal, any barrier can not be arranged to exchanging detector 10 or crashproof detector 11.
Exchange exploring antenna 45 and stretch out on the cavity 100, the halogen spot light bubble 12 of search lamp 12 ' be positioned at cavity 100 is protected.Crashproof detector 11 is that settle the side.Control module 13 be positioned at cavity 100 within for circuit provide with the shielding and the protection of element on every side.Inclination sensor 59 is installed in the circuit board of control module 13.
(representing among the figure) a plurality of above-mentioned interchanges and crashproof detector 10 and 11 are positioned at respect to the detection that provides on any of three axles of cavity electric power line or physical obstacle in an alternative embodiment.
With reference to Fig. 3, shown the controller road that exchanges detector antenna 10 crashproof detectors 11 and search lamp 12, as shown in Figure 3, inclination sensor 59 is positioned at cavity 100.
With reference to Fig. 4, control module 13 is linked 12 volts of (direct current) power supplys by a primary power disconnect 14 and fuse 15.A second source lead 16 is linked on the vehicle ground connection 17.
18 pairs of audio units 19 of sound external alarm message output apply a signal, and in this case, it is expressed as a piezo-electric resonator the possible danger that safety is caused is surveyed.
When driving switch 24, link the corresponding pneumatic or hydraulic valve 28 of bar or cantilever 24 and linked the output 29 of valve air-flow and valve exhaust output 30 on, and supply with power to promote or to reduce bar and cantilever.
Aforesaid control system also allow control module 13 with before the power line of danger or barrier contact preferentially to the manual operation of bar or cantilever 26, and stop motion.Control module 13 by a plurality of signal transmission devices 31 with exchange detector 10 and link to each other with crashproof detector 11.
With reference to Fig. 5, shown control module 13 among the figure and exchanged detector 10, crashproof detector 11, the inclination sensor 59 of Fig. 3 and the valve 28 of Fig. 4 interconnect detail drawing.
With reference to Fig. 5, in each signal input, provide EMI filtrator 33 to control module 13, that is, COL signal 61, TX37, TILT60 and AC signal 62 make the detection to wrong electric signal drop to minimum.
As shown in Figure 5, be a temperature sensitive member 34, link to each other with voltage comparator 35, when the temperature around the warning cavity 10 surpassed a predetermined value, this voltage comparator formed a signal of giving control module 13.
Provide voltage stabilizing diode and standard diode 39 to avoid too high being applied to the harm that causes on the control module 13 with reverse voltage because of what carelessness caused in order to protection control module 13.
A metal-oxide-semiconductor field effect transistor (MOSFET) 40 is used as the interface of 13 pairs of relays 41 of control module, and relay 41 provides control voltage to external pressure or hydraulic valve 28 conversely.The state of inclination sensor 59 is by input 60 monitoring of tilting.
With reference to Fig. 6, be shown in the most preferred embodiment of the control circuit of the crashproof detector 11 of ultrasound wave.Be connected to TX from the output of crashproof detector 11, TXFILT ,+5V power supply and COL Signal Terminal connector, this connector generally is expressed as 44.The crashproof detector 11 of ultrasound wave detects the object in 100 1 inches to eight feet of the distance alarm cavitys, and exports a control signal and give bar controlling (not shown) in the car, with moving of locking lever.
Because the crashproof detector of ultrasound wave is known in the prior art as an independent device, the further discussion of details be there is no need.
With reference to Fig. 7, show that this warning system exchanges the block diagram of detector 10, exchanges detector 10 detects alternating voltage by the antenna 45 that links existence.Like this, the electro-induction signal is by 46 amplifications of stress effect transistor (force-effect transistor), and is represented as 47 filtering circuit multiple times of filtration.
In most preferred embodiment, interchange detector 10 can detect 7200 volts of eight feet of minor increments, the existence of 60 hertz of power transmission lines.This distance enough is used for providing warning to stop to move or providing electric signal to the bar position control (not shown) of vehicle to line of electric force to bar or cantilever operator, and moving of locking lever automatically is to avoid collision.From the output that exchanges detector 10, interconnect by AC signal terminal 48 and control module 13.
The control of search lamp 12 is to use circuit shown in Figure 8 to finish.Temperature around a negative temperature coefficient (NTC) device 49 reflection warning cavitys 100 inside.Monitor by a pair of voltage comparator 35 in a window construction at the voltage that dividing potential drop between temperature stabilization resistance 50 and the NTC device 49 produces.
Be lower than the predetermined threshold value level if peripheral temperature drops to, as occurring in when freezing in the warning cavity 100, search lamp 12 is lighted, and uses as heating element, therefore fusing ice and keep system works.If peripheral temperature rises to second intended threshold level, as occurring in the halogen lamp long-time operation, search lamp 12 extinguishes and allows cavity 100 coolings, prevents cause thermal damage.
In case detect in the scope of sensor an electricity or physical barrier, sound and visual alarm device are activated, the people of alarm operation lever alarming system collision on the horizon.The function of search lamp 12 is that the confession under directions illumination helps the operator that bar is directed to a home.
With reference to Fig. 9, a microcontroller circuit plate generally is expressed as 52, the signal that exchanges detector 10 and 11 generations of crashproof detector is provided understand and response.In this most preferred embodiment, the formation of the microprocessor that this is traditional comprises 53, one outside CMOS registers 54 of microprocessor and the programable read only memory that can wipe 55 of one 8031 type.
Because microprocessor 53 and the circuit that links with it are low-voltages, the low current device, they can not directly drive outside relay, valve, or other high current devices.Utilize the additional transistor of a row generally to be expressed as 57 and can realize interconnecting and reaching suitable drive level.
The visual state indication, promptly (COLLISION TILT) is provided by light emitting diode 56 for AC, STATUS.
It is that monitoring circuit 58 by particular design provides that the electric power starting of microprocessor 53 is reset, and is used for the operating voltage of monitoring microprocessor circuit board 52 and when needs start and keep reliably working and need, and microprocessor 53 is reset.
The basic operation of lever alarming system and the operative relationship of each sensor are now described.
In order to operate this warning system, comprise that the cavity 100 of sensor uses suitable mounting hardware to be positioned in the peak of bar or cantilever, exchange detector 10 upwards emersion as shown in Figure 1 like this.The operation key of native system is: interchange detector antenna 45 or the crashproof detector 11 that stretches out from cavity 100 sides can not have barrier.
Electric wire that is no more than 100 feet long 6 conductor shielding cables 65 and is not less than 16 wire gauges (gauge) is used for barre warning cavity 100 and couples together with safety control module, and this module generally is expressed as 66, as shown in figure 10, is installed in the vehicle.The installation of safety control module 66 should allow the operator watching warning indicator 68-71 not have obstacle when control lever.
Certainly, make the switch of the extension of bar of cantilever motion and withdrawal and operation valve should be according to the same line of vehicle line graph.
Nominally lever alarming system requires its maximum current of 12.6 volts of direct currents (actual 10.6 volts to 20 volts) to be no more than 5 amperes, and the circuit of 8 amperes fuse protection should be provided.
Even so, bar is reported to the police and is still had strong noise filtering at power supply input circuit, some device that has the forceful electric power noise that comes from other devices may need the additional filtration unit to the power supply input, because the device to each car is different, must verify under various conditions the work that safety control module 66 is suitable for setter.
After installing, lever alarming system uses main power switch 67 opening power that are positioned on the safety control module 66.Native system is designed to carry out the about 8 seconds comprehensive System self-test of needs.After self check is finished and passed through, standby condition indicator 68 will give a green light continuously.This visual indicator represents that system is in working properly and can stretches bar or cantilever.
If fail self-test, system prepares indicator 68 and shows a wrong indication code, and error code is as follows:
Dodged in per 10 seconds and exchange fail detector 1 time
Dodging 2 interchange detectors in per 10 seconds can not zero clearing
Dodged 3 crashproof fail detectors in per 10 seconds
Dodging 4 crashproof detectors in per 10 seconds can not zero clearing
Dodged 5 stretching, extension switch failures in per 10 seconds
Suppose that self check passes through, lever alarming system is in monitoring state, is contained in that search lamp 12 on the bar is lighted and the AC power indicator 68 on control module may be glittering once in a while.AC power indicator 69 glittering frequencies are near the measuring of signal intensity of AC power.Process is overhauled the crown and peripheral region, and bar or cantilever 26 can stretch with vehicle bar control (not shown).
If in the monitoring state of bar warning device of the present invention, detect a possible collision or dangerous AC field, an alarm condition is triggered, and safety control module 66 will send an audible alarm and will be to the reason of operator's display alarm by loudspeaker 72.AC power indicator 69 is glittering rapidly, shows to have strong AC field.The glittering expression of anticollision indicator 70 exists and may bump with line of electric force or other physical barrier.Inclinator 71 is glittering to show that bar is in non-equilibrium state or vehicle is in uneven state or both all exist.
When alarm condition, the further stretching, extension of bar and cantilever is blocked automatically, and indicator 68 deepenings are prepared by system, if after 5 seconds, eliminates and triggers the condition of reporting to the police, and the stretching, extension of bar is allowed to again.Certainly, also may be in operating process, withdraw at any time bar and cantilever.
If if warning took place and do not think further raise bar or cantilever greatly in 15 minutes, this warning system will enter a resting state.Exchanging monitoring proceeds; Yet search lamp 12 turns off and crashproof detector 11 will quit work.
At extremely cold environment, as long as main power switch is in the position of " opening ", the search lamp 12 that is placed on the bar may be lighted, and relies on the lifting temperature will help to reduce ice or the snow that is blocked on the warning cavity 100.Exchange detector 10 and crashproof detector 11 must keep not having ice and snow for adaptation work state.
On the contrary, the prolongation operation that is contained in search lamp 12 may cause warning cavity 100 overheated, and in this case, search lamp 12 will extinguish automatically.Get back to predetermined normal working temperature when the temperature of warning cavity, lamp 12 will be opened once more.Yet any time does not influence the validity of AC power or crashproof alarm.
As can be seen from the above description, lever alarming system of the present invention is by providing sound and Control and Feedback to remind the operator to be about to provide an improved safety method near the mode of dangerous overhead line of electric force or physical obstacle to the operator of expansion link or cantilever truck or other relevant devices.
The sensing range that warning system provided is like this design: audible alarm is operated the manually motion of locking lever or cantilever of chien shih operator when sufficiently long, and the motion that provides an automatic locking lever of control signal to enter the hazardous location.
Already used word " on ", D score, " next door " or the like is just as usually describing the present invention and its parts sensing in the accompanying drawings.Should be clear and definite, these words do not have any restriction to the present invention, because in use, the present invention can be arranged in different orientation significantly.
Under the condition that does not depart from spirit of the present invention and essential characteristic, the present invention also can have other the special above-mentioned method that is different to realize.Embodiments of the invention should be considered in all respects to explanation of the present invention rather than restriction, in the identical or scope that is equal to that all variations fall within all that claim protects.
Claims (18)
1. a lever alarming system is used in combination to warn the lever apparatus operator that power lead and physical obstacle appear in overhead with the expansion link device, and described system comprises:
An emf sensor, it can detect the existence of alternating current voltage in a predetermined low coverage, and can be to the reflection of above-mentioned situation and produce an output signal;
A crashproof detector, it can be in the existence of predetermined closely internal induction physical arrangement, and the reflection of above-mentioned situation is produced an output signal;
A microprocessor, be electrically connected with described field sensor and described crashproof detector, it can understand and produce the operation control that control signal is delivered to a plurality of warning indicators and lever apparatus to described output signal, interrupts its motion before lever apparatus and hi-line and physical obstacle come in contact;
A safety control module is electrically connected with described microprocessor, when at least one of described lever apparatus and line of electric force and physical obstacle is about to come in contact, shows described warning indicator to the operator; And
A plurality of inclination sensors and microprocessor are electrically connected, and the physical orientation that can detect described lever apparatus prevents that its stretching, extension is in the hole.
2. lever alarming system as claimed in claim 1 comprises further that wherein one is arranged on the cavity on the lever apparatus.
3. lever alarming system as claimed in claim 2, wherein said field sensor, crashproof sniffer and microprocessor are arranged in the described cavity.
4. lever alarming system as claimed in claim 2 wherein is equipped with a light source in described cavity, this light source direction upwards illuminates the path that it is advanced in night with under the bad condition of other sight line to described lever apparatus in operating process.
5. lever alarming system as claimed in claim 4, wherein said light source comprise a halogen bulb, and it can heat described cavity to keep a predetermined operating temperature under harsh weather conditions.
6. lever alarming system as claimed in claim 1, wherein said microprocessor receives the output signal of sending from crashproof detector, when described output signal surpasses predetermined amplitude, produces a control signal corresponding.
7. lever alarming system as claimed in claim 1, wherein said crashproof detector comprises a ultrasonic unit, be positioned at the outer end of expansion link device, receive the ultrasound wave of reflection, near the physical obstacle of detection described outer end, and when described vehicle moved, the obstacle response produced an output signal in the lever apparatus outer end.
8. lever alarming system as claimed in claim 7, wherein said ultrasonic unit detect with the lever apparatus outer end apart from the object in the 1-8 foot scope.
9. lever alarming system as claimed in claim 1, wherein a plurality of inclination sensors are exported a plurality of corresponding second and are outputed signal to microprocessor, when vehicle moves up, show the vertical orientations of described bar in described lever apparatus outer end.
10. lever alarming system as claimed in claim 9, wherein when described output signal showed that described bar is in undesirable direction, described microprocessor produced second control signal.
11. lever alarming system as claimed in claim 10, wherein said operation control respond described second control signal, end described outer end from moving that described vehicle makes progress.
12. lever alarming system as claimed in claim 1, wherein the warning indicator in safety control module is in the vehicle pulpit of lever apparatus is installed.
13. lever alarming system as claimed in claim 1, wherein said warning indicator are a kind of in sound indicator and the visual detector at least.
14. lever alarming system as claimed in claim 1, wherein when ac inductor at the setpoint distance internal induction of this inductor during to alternating voltage, described electromagnetic field inducing device produces second output signal.
15. lever alarming system as claimed in claim 14, wherein this second output signal effectively stops described outer end moving relative to described vehicle.
16. lever alarming system as claimed in claim 15, wherein said electromagnetic field inducing device can respond to the described outer end of described bar with at 7200 volts, the 60Hz power transmission line be in minor increment be 8 feet near.
17. lever alarming system as claimed in claim 1, wherein said warning indicator are a kind of in sound indicator and the visual detector at least.
18. comprising, lever alarming system as claimed in claim 17, wherein said safety control module indicate emf sensor and all idle device of crashproof detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001241397A CN1144165C (en) | 2000-08-14 | 2000-08-14 | Lever alarming system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001241397A CN1144165C (en) | 2000-08-14 | 2000-08-14 | Lever alarming system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1338707A CN1338707A (en) | 2002-03-06 |
| CN1144165C true CN1144165C (en) | 2004-03-31 |
Family
ID=4590300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001241397A Expired - Fee Related CN1144165C (en) | 2000-08-14 | 2000-08-14 | Lever alarming system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1144165C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102881065B (en) * | 2012-10-10 | 2015-04-08 | 红门智能科技股份有限公司 | Rotary type vehicle access management device |
-
2000
- 2000-08-14 CN CNB001241397A patent/CN1144165C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1338707A (en) | 2002-03-06 |
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