CN1154172A - Ropeway safety monitoring system - Google Patents
Ropeway safety monitoring system Download PDFInfo
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- CN1154172A CN1154172A CN 95193778 CN95193778A CN1154172A CN 1154172 A CN1154172 A CN 1154172A CN 95193778 CN95193778 CN 95193778 CN 95193778 A CN95193778 A CN 95193778A CN 1154172 A CN1154172 A CN 1154172A
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Abstract
A system for monitoring the safety of a ropeway includes sensors that communicate with a base station and preferrably a base station computer. A cable misalignment sensor (16) detects cable misalignments from a normal line of cable traction and produces a cable misalignment signal. A vibration sensor (12) on each sheave detects vibrations characteristic of disintegration in the sheave assembly and produces a vibration signal (14). These sensors each have an RF transmitter for broadcasting its signals to an RF receiver (16) on the cable towers. Interface units (4) local to sensor groups relay their signals to a base station computer to inform the cable operator.
Description
The present invention relates to monitor aerial cableway, it is the system of the ropeway security of cable support, be particularly related to the such system of far-end security sensor network that has along the aerial cableway distribution of system, be used to detect dangerous or potential unsafe condition and respond unsafe condition produce the alerting signal that sends the aerial cableway operating personnel to.
Term used herein " aerial cableway delivery vehicle " and " delivery vehicle " are represented any chair form cable car, basket cable car, gondola, box-type container, platform, T type beam or in general sense from suspended other delivery vehicle that is used to deliver people and/or article of aerial cableway cable.Term " pylon " is meant the supporting frame of any aerial cableway cable.
An object of the present invention is to provide a kind of some quick and efficient system unusual or unsafe condition of aerial cableway that is used for detecting.
Another object of the present invention provides a kind of aerial cableway cable position that is used to detect magnetic conduction unusual or dangerous mobile fast and efficient system.
A further object of the present invention provides a kind of system, is used to detect unusual or dangerous move of position in pulley of the aerial cableway cable of magnetic conduction, so that take remedial action before cable is jumped out this pulley.
A further object of the present invention provides a kind of system, is used to detect unusual or dangerous move of position in pulley of the aerial cableway cable of magnetic conduction, the indication that may disintegrate as pulley.
A further object of the present invention provides a kind of system, is used to detect aerial cableway cable pulley assembly, the commitment that disintegrates of pulley particularly so that in the influenced prerequisite of the support of the cable that travels along pulley assembly for warning.
A further object of the present invention provides a kind of system, is used to detect the commitment that cable pulley disintegrates, so that further damage prerequisite for warning at pulley assembly.
A further object of the present invention provides a kind of system, thereby comprising being used to detect the dangerous inclination of aerial cableway delivery vehicle or waving, this system provides warning at least, so that clashed into and/or before cable is seted out, can take installing fast and effectively of remedial action at delivery vehicle.
A further object of the present invention is to become in inclination to detect because the inclination of the aerial cableway delivery vehicle that oscillating motion on one point causes before dangerous.
These purposes, and other purpose of expression herein or hint is by system's realization of monitoring aerial cableway security, this system has at least one, be one or more cable position transducers, respond this cable and be offset normal cable traction line generation and the corresponding signal (" cable shifted signal ") of skew.Each cable pylon preferably has a cable position transducer at every cable that is supported by this pylon or cable ru.This system also can have at least one, be one or more pulley vibration transducers, the pulley vibration transducer is installed on the corresponding cable pulley assembly and responds in the cable pulley assembly is to belong to the vibration of separating body characteristics in the pulley assembly at least, to produce a signal corresponding with it (" pulley problem signals ").Be preferably in a vibration transducer is installed on each pulley assembly.This system preferably also has at least one, be one or more aerial cableway delivery vehicle inclination sensors, be installed on the aerial cableway delivery vehicle of the correspondence that supports by this cable, respond the excessive of its main delivery vehicle respectively and wave, to produce a signal corresponding (" excessive wig-wag signal ") with it.These problem identification signals send the rope operating personnel to, so that operating personnel take remedial action.An embodiment of this cable position transducer has an inductance component that is installed at least one cable pulley assembly, be used to produce magnetic flux and detect the position of this cable, as the function of the magnetic flux that passes this cable with respect to described normal cable traction line.An embodiment of vibration transducer has a converter, is used for the vibration of pulley assembly is transformed into respective signal; With a mechanical Hi-pass filter, be used for filtering and the corresponding component of signal of vibration that produces by the pulley assembly normal running, and the component of signal of filtering not the pulley problem signals.An embodiment of aerial cableway delivery vehicle inclination sensor has a tilt switch, is used for producing when the inclination whenever delivery vehicle exceeds the predetermined threshold angle of inclination a signal (tilting signal ＂); A processor is used for measuring at least the duration and the repetition rate of tilting signal, and is producing excessive wig-wag signal when duration or repetition rate surpass predetermined corresponding threshold value.Each delivery vehicle with an inclination sensor also has a RF transmitter, be used to broadcast the excessive wig-wag signal that produces from delivery vehicle, this system comprises that at least one is installed in the receiver on the cable frames (" pylon "), is used to receive the excessive wig-wag signal of broadcasting.Configuration is forwarded to sensor signal the base station computer that corresponding indication is provided to the cable operations personnel for the interface unit (for example being installed on the same pylon with this sensor) of each sensor.Configuration arrives this base station computer with the signal forwarding that is received for the interface unit (for example being installed on the same pylon with this receiver) of each RF receiver.The transmitter of aerial cableway delivery vehicle and pylon receiver preferably use spread spectrum to strengthen the ability of its anti-external interference.Interface unit is preferably communicated by letter through public data network with base station computer.Each aerial cableway delivery vehicle also can have one or more code transponders, and this code transponder can pass through than short distance, for example tens feet base station receivers that the private code of determining are sent to correspondence.Each excessive wig-wag signal transmitter preferably has a private code, and whenever the main delivery vehicle of this transmitter during by this base station, sends a pulse to trigger transmitter code transponder with the transreceiver of this base station computer communication.This transponder is replied by sending the code of being asked.Like this, base station computer has passed through the quantity of delivery vehicle on the unbitt and has distributed to keep fully that on the cable each aerial cableway delivery vehicle is positioned at accurate track where.Equally, each aerial cableway delivery vehicle and each delivery vehicle hold down gag can have private code and similar transponder/transreceiver configuration, so that system controls its delivery vehicle catalogue and arranges the maintenance or the replacing of hold down gag according to the access times of hold down gag.
Fig. 1 is according to the functional-block diagram that the invention provides comprising the general introduction of the communication network between a plurality of cable tower interface unit of a base station computer and system.
Fig. 2 functional-block diagram that to be a tower interface unit and its link to its a plurality of sensors with configuration.
Fig. 3 supports the side view of a pulley of cable to assembly, and this assembly is a pair of cable pulley that brace summer is combined by pulley.
Fig. 4 is the side view of the pulley of Fig. 3 to assembly, and vibration transducer according to the present invention is affixed to this pulley to brace summer.
Fig. 5 is the synoptic diagram of vibration transducer.
Fig. 6 has a cable and the partial side view of the cable pulley of a pair of cable alignment sensor of installing across this cable line both sides on it.
Fig. 7 is the functional-block diagram according to cable alignment sensor of the present invention.
Fig. 8 is the sectional view according to inductive detector of the present invention.
Fig. 9 shows and is installed on the pulley support beam and across the pulley of a pair of cable alignment sensor of the cable conveyer line both sides configuration planimetric map to assembly.
Figure 10 is the synoptic diagram of aerial cableway delivery vehicle by the cable pylon, and the aerial cableway delivery vehicle of the excessive inclination of clashing into this pylon has been described in this cut-open view.
Figure 11 is the schematic cross-section according to tilt switch of the present invention.
Figure 12 is the planimetric map of the tilt switch of Figure 11.
Figure 13 is the synoptic diagram of communication link between aerial cableway delivery vehicle and the pylon.
Figure 14 is the functional-block diagram with the aerial cableway delivery vehicle inclination sensor of tower interface unit communication.
With reference to Fig. 1 and 2, this figure has illustrated that system according to the present invention has the base station computer 2 of communicating by letter with a plurality of far-end tower interface unit 4 through Local Area Network 6.The tower interface unit is located at pylon 8 separately.Its a plurality of senser elements are given in each tower interface unit monitoring configuration.The major function of base station computer is constantly from the tower interface unit requests status report relevant with this senser element, and provides corresponding real-time status information for operating personnel.The status report request can be arrived each pylon continuously.Base station computer is handled its information that receives from the tower interface unit, seeks precarious position.Preferably adopt as if rationally and related algorithm is handled this information to improve its result's reliability.Base station computer is handled can have the various indicators 10 that are used for transmitting to operating personnel precarious position, and for example monitor screen and other optics, acoustics, diagram and/or letter are reported to the police and shown.
With reference to Fig. 1 and 2, a class senser element can be a pulley support vibration transducer 12 again.Each sensor is fixed to the pulley assembly support component such as the pulley support beam, belongs to the vibration of separating body characteristics to detect in the assembly such as the pulley that is decomposing.Preferably vibration transducer is fixed to each pulley support beam.As hereinafter fully description of institute, each vibration transducer produces and its support vibration of beam corresponding simulating signal 14 that is fixed to.Simulating signal is carried out pre-service and is sent to the tower interface unit that the pylon at sensor place is given in configuration.
With reference to Fig. 1 and 2, the second class senser element can be a cable alignment sensor 16 again, and this cable alignment sensor provides the relevant information of any transverse movement that is offset its draught line with cable.Each pylon preferably has such sensor at every the cable ru that is supported by this pylon.For example, have the pylon of pulley assembly that the pulley assembly of a cable that is used to be supported on its forward operation and another be used to be supported on the cable of its inverted running and should have two cable alignment sensor, each sensor is positioned at first pulley (with respect to the lead) back of its associated pulleys assembly.As hereinafter more complete description, each cable alignment sensor provides an output 18, and this output is corresponding with the frequency difference of the positional information that comprises relative its axis of traction of cable that relevant sensor detecting.This information is sent to configuration and gives, and promptly is installed in the tower interface unit on the pylon at this sensor place.
With reference to figure 1,2 and 14, the third detection means can be mounted in and detect the dangerous and/or excessive inclination sensor that waves 20 of delivery vehicle on each aerial cableway delivery vehicle.With more complete description, this sensor comprises a spread spectrum RF transmitter as hereinafter, and if this sensor determine to wave dangerous or excessive, this transmitter will be triggered so that broadcast a respective signal.Pick up this signal by the one or more band spread receivers 24 that are positioned on the corresponding pylon of broadcasting area.Receiver is sent to its this machine tower interface unit separately with the signal 26 of correspondence again.In addition, each inclination sensor can be broadcasted a status signal termly to indicate its functionality.
Again with reference to Fig. 1 and 2, as described, the cable alignment sensor 16 that each tower interface unit 8 pulley support vibration transducer 12 of 4 monitorings on the pylon 8 and two configuration set are given this unit is given or is installed in configuration, and monitoring is used in the receiver broadcasting area the local spread spectrum RF receiver 24 (SS RCVR) from aerial cableway delivery vehicle received signal.Value volume and range of product by the device of tower interface unit monitoring can be optionally greater or less than the value volume and range of product of describing just now.The output 14 of the sensor of self-excited oscillation in the future is applied to signal multiplexer 25 (MUX) as input, and the output of multiplexer is sent to analog-digital converter circuit 27 (A/D).The output of A/D circuit is sent to the input port of the interface unit handles device 29 such as the microprocessor that has program and data-carrier store.Can be by the selection of sequential circuit (not shown) or microprocessor through the MUX control signal.Therefore the output 26 of RF receiver is digital form, need not to change and directly arrives the input port of processor.The cable alignment sensor provides two pulse trains input 18A and 18B to processor, and the cycle of pulse train is corresponding to the frequency of oscillator separately, as hereinafter with more complete description.The interface unit handles device is communicated by letter with base station computer 2 by LAN6 through LAN interface 31 (LAN INTF).Interface unit also can have " supervision " circuit (not shown), so as termly the informing base station computing machine itself and by all the sensors of its monitoring just in operate as normal.Interface unit and receiver are placed in the weather proof shell.
With reference to figure 2-5, pulley support vibration transducer 12 is designed to use 30 monitorings of piezoelectric crystal transducer by the vibration frequency of pulley to assembly 28 generations.If apply mechanical stress across an axle, piezoelectric crystal then produces voltage.In order to use the piezoelectric element measuring vibrations, must convert pressure to by degree of will speed up.When adopting piezoelectric element to detect surface vibration,, can be transformed into pressure by degree of will speed up by place piece 32 simply at the top because the constant pressure signal is incoherent.In addition, when this piece is when being carried in the lip-deep spring of piezoelectric element, can be at some frequency amplification signal.In this case, at defined acceleration, this piece will lose with the surface and contact and finally rebound and knock piezoelectric element, produce higher voltage.For given pressure, irrelevant with vibration frequency because piezoelectric element always produces identical voltage amplitude, this is important to the frequency band that increase comprises relevant information.
Because rupture or its its adjacent pulley support beam that will rub when coming off when face of pulley becomes, the pulley sensor can detect the disintegration of pulley effectively.This friction is that metal to metal and generation are the vibration of feature with this situation.Sensor purpose of the present invention is to detect these vibrations and transfers them to the base station, and the warning of sounding at least is so that take remedial action as early as possible.
With reference to figure 3 and 4, illustrated pulley assembly 8 has the pulley 36 of two planar registration, is inserted in the bent necks of two pulleys by spaced relationship and is bonded them together by pulley support beam 48A and 48B.The cable 40 that is commonly referred to cable wire travels on this pulley.Connecting 42 by a gear remains on pulley assembly on the pylon (not shown) routinely.Each pulley comprises a disk 44, determines a recessed relatively central channel 46 around the edge of this disk, and cable travels in this groove.Grooved disk be fixed on its concentric circular side panel 38A and 38B between, but the diameter of circular side panel is bigger to form the edge.Vibration transducer 12 is installed in the outside of pulley support beam 48B.This sensor comprises the order wire 50 that is used for sending to the tower interface unit its output.
With reference to figure 5, sensor 12 comprises the piezoelectric element 30 that mechanical pressure or impact shock is transformed into corresponding electric signal.Propping up the piezoelectric element surface by spring 52 loads moving freely piece 32.Can pass through screw 54 regulating spring power,, not leave piezoelectric element surface big degree like that so that the vibration that is produced by pulley motion under the normal running can not accelerate to piece it to change sensitivity in various frequencies.The spring-loaded like this piece that moves freely is as mechanical high pass.Under the normal condition, because the normal vibration in the lip-deep pressure of piezoelectric element will produce low frequency signal.Yet,, will abrade brace summer and produce dither if the side plate of pulley ruptures and begins to come off.This vibration will speed up lip-deep of piezoelectric element away from this surface.Thereby rebound and clash into piezoelectric element.This bump makes piezoelectric element produce the high pressure and the high-frequency signal (with respect to the frequency that produces during the pulley assembly normal running) that will be sent to " picking up " circuit 56.This pick-up circuit comprises a Hi-pass filter, to remove any direct current (DC) component from piezoelectric signal and to amplify, so that will be transformed into the voltage range of the A/D converter 27 (Fig. 2) that is suitable in the local interface unit through the signal of wave filter.Order wire 50 sends to interface unit with the output of pick-up circuit, and then is sent to base station computer.
Have been found that under the normal running of chair form cableway pulley blocks its fundamental frequency depends on cable wire speed between 10Hz and 15Hz.Cable wire scratch face of pulley or metal parts hit brace summer (can take place) any additional noise that produces and cause the frequency of about 70Hz during pulley disintegrates.
This pulley assembly vibration transducer is well suited for as safety device any cable support or the system that cable drives, these systems comprise for example slidingtype personnel carrier, slide manipulation rope, slip T-beam, dull and stereotyped transveyer, delivery vehicle transveyer, people mover, avalanche type initiator (avalanche blaster) and material cableway, and the pulley disintegration is a problem in these systems.
With reference to figure 6-9, the cable alignment sensor is used for measuring cable wire and is positioned at magnetic resistance (Rm) between the source, two magnetic fields (inductor) on this cable wire opposite flank, both known distances (D) of being separated by.Each magnetic resistance is directly proportional with this distance: Rm～D.The inductance of each inductor (L) is determined L-D/Rm by magnetic resistance.This shows and can determine distance between cable wire and the inductor by inductance measuring.The method of a kind of simple inductance measuring (L) is to use the L/C oscillator that has fixed capacity (C).The frequency of this oscillator then only is directly proportional f=(1/2 π) (1/LC) with inductance.
Therefore as described herein, even be fixed capacity, oscillator frequency in theory only is the function of its inductor current, and is directly proportional with distance from the cable wire to the inductor, in fact also has environmental factor, particularly temperature also to influence the value of L and C.Physically abut against the temperature stabilization element that is provided with together and the difference measurement result (by the deviation in the kinetic frequency of rope) of oscillator response can reduce to these influences insignificant minimum value by using.Like this, the influence of the environmental variance such as airborne temperature and humidity becomes the common mode phenomenon and influences very little or does not influence.
With reference to figure 6-9, these figure have illustrated the magnetic conduction cable 40 (for example using wirerope in conventional chair form cableway) that travels on conventional pulley 36.Inductor 60A and 60B are installed on the opposite flank of pulley assembly.A suitable inductor has following properties: (a) a kind of magnetic flux that forces takies the physical form of long enough stroke by air, (b) in the ability of the optimum frequency work of cable materials, and (c) low and (d) high permeability of the loss that causes by eddy current.An example of shown inductor is the conductive coil 62 that is wrapped in opening " C " the type heart body 64 such as iron core.As described, opening surface unshakable in one's determination is towards cable, so that should not provide the magnetic flux closed circuit by iron core when the excitation inductor.Yet the magnetic conduction cable in the pulley groove and this inductor constitute closed magnetic circuit and reduce the magnetic resistance that will feel with other method thereon.When cable when more moving (seem to take place cable and shift out this groove) towards inductor near the direction of inductor, the magnetic resistance of inductor will reduce, and show that its inductance will increase.
Again with reference to figure 6-9, illustrated inductor has the center tap 66 with the corresponding L/C circuit communication of a pair of free-running oscillator 68.This center tap allows to use L/C oscillator with push pull mode work with the loss in the compensation core material.Two oscillators are preferably identical and be set together in an electronic unit, promptly are close together on a circuit board, so that temperature effect is identical to the drift that both cause.The frequency of each oscillator is the inductance of its coil and the function of selected electric capacity.Capacitance is determined frequency range and must be selected according to the magnetic characteristic of heart body (preferably iron material) and cable.In a series of experiments, found for the standard cable wire optimum frequency scope of using in the chair form cableway between 40Khz and 50KHz.
Two inductors are installed in the opposite flank of cable symmetrically, with the draught line formation closed magnetic circuit of cable.If the manufacturing of sensor is identical, ideally, these sensors have identical inductance to the cable at center between them.The inductance of another sensor will reduce if cable is sensor offset of mind-set therefrom, and the inductance of this sensor will increase.The result is that the frequency of an oscillator reduces and the frequency increase of another oscillator.Thereby make two sensors that the difference information relevant with the cable position is provided.
Again with reference to figure 2 and 7, oscillator 68 is sent to interface/pulse shaper circuit 70 with their frequency 69A and 69B separately.Interface/pulse shaper circuit produces the pulse train 18A of two correspondences and the processor 29 of the local interface unit 4 that 18B is sent to sensor respectively.Pulse train can be that the sine wave of self-excited oscillation device in the future is divided into the square bipolar signal that can be read by processor.In this case, processor cycle of measuring pulse train simply is used to calculate frequency difference with the frequency of determining oscillator.Poor by between two frequencies during the self-study algorithm stores normal running of processor operation.Because two oscillators are in the equivalent environment and in the equidirectional drift, adopt this frequency difference so that temperature to the minimum that influences of frequency.During from the midline shift fabricated, this frequency will change significantly at cable.If should value surpass predetermined threshold, processor then sends signal through LAN to computing machine.This base station computer is programmed the cable skew to distinguish normal cable skew and to exceed normal range.For those cable skews that exceeds normal range, this base station computer also can provide about slowing down or stop immediately the information of cable motion.
Alternately monitor the output of two oscillators by frequency counter.
Cable alignment sensor according to the present invention is suitable for the device as the laterally offset that detects the magnetic conduction cable that uses in any cable support and/or the cable drive system, these systems comprise the class chair form cable car that for example slides, handle rope, T-beam, dull and stereotyped transveyer, suspension type transveyer, people mover, avalanche type initiator and material cableway, the cable skew may be a problem in these systems
Figure 10 has described the intrinsic safety problem of aerial cableway delivery vehicle.In brief, excessive oscillating motion or clash into stationary object such as pylon 8 more continually and can make the delivery vehicle 72 that waves break away from it to support cable.In this case, the hold down gag 71 of delivery vehicle is reversed from cable, and delivery vehicle and its passenger will fall earthward, and often cause catastrophic effect.
With reference to Figure 11 and 12, illustrated inclination sensor 20 has an annular seal space 74.Except that the bottom edge 78 as contact ring, the base plate in sealing chamber 76 is for taper and be electrical insulator, for example plastics.As illustrated in FIG., the top board 80 in sealing chamber can be inverted bowl-shape plate or flat board.Except that also being that this top board also is a nonconductor the top board edge 82 as contact ring.Two contact rings are aimed at relatively, form wedge shape around the sealing cavity edge, and preferably gold-plated, and annular seal space inside is a conducting sphere 84, for example gold-plated ball.The electrical lead (not shown) provides signal to transmit between sealing contact ring and external circuit.Annular seal space and contact ring that inside has ball constitute tilt switch 86.Inclination sensor is installed on the aerial cableway delivery vehicle, and is consistent with the vertical line of delivery vehicle center of gravity.
In the operational process, when delivery vehicle was static, this ball was positioned at the conical bottom board minimum point, but when this sensor perturbations, this ball is tending towards rolling to the annular seal space edge.If it is too serious to tilt, this ball will roll in the wedge shape between both relative contact rings of contact, and on electric closing contact.With respect to horizontal direction, the degree of tilt of the annular seal space base plate of being installed is preferably less than the dangerous degree of tilt of aerial cableway delivery vehicle, so that make the contact ring closure before delivery vehicle arrives dangerous degree of tilt.For example, the base plate degree of tilt of annular seal space illustrated in fig. 11 is 10 °, and is littler 5 ° than dangerous degree of tilt illustrated in fig. 10.
As mentioned above, tilt switch is to the tilt sensitive of aerial cableway delivery vehicle in 360 ° of all directions of angular range.Yet, can produce the closure consistent " blind spot ", so that delivery vehicle quickens or prevent switch closure when stopping with the cable traction axle.Be easy to accomplish by covering contact ring with insulator in some section.In addition, can charge into the fluid of relative thickness such as ethylene glycol in the ball chamber, with the motion of the ball that suitably slows down.
With reference to Figure 11,13 and 14, the closed signal that is sent to filter cell 88 that produces of tilt switch, filter cell is by lithium battery 90 power supplies.The output of filter cell is sent to microprocessor 22 (preferably CMOS).Be to save the energy content of battery, microprocessor is in low current (dormancy) state under normal condition, but when at as tilt switch occurs by the time predefined cycle that the time constant circuit in the filter unit is determined and increase when closed and power.If false contact occurs, can prevent little processing starting like this because normal vibration causes.When increasing power supply, the software algorithm of microprocessor rolling inspection closing period and repetition rate.Because the known physical size of aerial cableway delivery vehicle, be the known constant that depends on load the oscillation period of delivery vehicle.If closure time and wave repetition rate and surpass preassigned pattern, microprocessor will start RF spread spectrum transmitter 22, and this transmitter will be through delivery vehicle antenna 94 to one or more pylon antenna 96 broadcast singals.(seeing antenna illustrated in fig. 1).Each delivery vehicle transmitter has its special-purpose unique code, and therefore the signal that is sent comprises the code of this delivery vehicle.Pylon in the transmitter broadcasts scope will have the signal retransmission of delivery vehicle code to base station computer through LAN.Inclination sensor also periodic broadcasting status signal just makes the base station computer in operate as normal be in holding state.
Therefore, each aerial cableway delivery vehicle has its oneself the inclination sensor by the lithium battery power supply that is specially adapted to low temperature.Because each delivery vehicle has its special-purpose unique code, base station computer also can comprise the program that is used to keep each delivery vehicle location track, can be with its quick location when sending alerting signal with convenient delivery vehicle sensor.
With reference to figure 1 and 14, each aerial cableway delivery vehicle transmitter 22 has a unique code, whenever host's delivery vehicle of transmitter during through the base station, pulse of base station receiver 104 and base station computer communication emission is to trigger the transmitter code transponder 102 on the delivery vehicle.Control this transponder by the microprocessor that transmits the delivery vehicle of transmitter code to transponder.Transponder is replied by sending requested code.Since whenever delivery vehicle during through the base station transreceiver and transponder very approaching, transreceiver and transponder only need have several meters scope.Like this, base station computer can pass through the quantity and the distribution of delivery vehicle keeps each the aerial cableway delivery vehicle on the cable to be positioned at track accurate position where on the unbitt.Equally, each delivery vehicle and each delivery vehicle hold down gag can have unique code and similar transponder/transreceiver, so that system controls its delivery vehicle catalogue and arranges the maintenance and the replacing of hold down gag according to the access times of hold down gag.As described, the base station has an aerial cableway delivery vehicle code transreceiver 110 and collaborative transponder, and delivery vehicle hold down gag transreceiver 14 and collaborative transponder 116.
Though described a kind of specific embodiment of tilt switch above, can use any kind of tilt switch that signal is provided basically when the aerial cableway delivery vehicle tilt or exceed selected angle boundary.For example, can use mercury cut-off or have the micromechanical accelerometer that capacitive character is picked up.In addition, this tilt switch can be the improvement or the combination of other tilt switch.
Aforesaid spread spectrum transmitter can be the conventional transmitter that has private code.Can have nearly 255 by the transmitter of unique coding according to a kind of like this transmitter/receiver systems of RADIONICS.They communicate on the 902-928MHz frequency band.Because the spread-spectrum signal duration is short and the wide frequency range of covering, they seldom are subjected in the influence of 9000MHz frequency band from the miscellaneous equipment transmission.The equipment that is generally operational in this frequency range sends on single-frequency usually, even but can not influence full spread spectrum transmission from the strong signal of one of these equipment.
A detecting unit also can be selected to comprise by this system, arrives each hold down gag and the aerial cableway delivery vehicle of base station with registration.Available this information deposits the number of times of each hold down gag disconnection and closed procedure in and determines the instantaneous position of each delivery vehicle on the cable track.
With reference to figure 1, can select the basis of central computer 100 as the central control system of all base station computer Direction Centers.Central computer can provide program updates, concentrates standby and restore funcitons, audition and function of reporting, far-end support, and provides the ability that monitors whole funicular system to managerial personnel.
Can select the micromachine vibration transducer is attached to the bearing of gear case and cable driving mechanism.It can be exported pre-service equally and become piezoelectric element signal in the pulley support vibration transducer, then it directly be sent to base station computer.
Only provide top description and accompanying drawing for the purpose of illustration, be appreciated that to the invention is not restricted to the disclosed embodiments, it is intended that and comprises any and all replacements, the equivalence that fall into element in the following claim scope, improves and reconfigure.For example, the RF transmitter and receiver that is used for aerial cableway delivery vehicle inclination sensor must be a spread spectrum device not necessarily, and can be any wireless transmit and the receiving equipment that can transmit signal from the pylon of delivery vehicle to article as mentioned above.
Claims (65)
1. system that is used to monitor the aerial cableway security comprises:
(a) at least one response cable be offset normal cable traction line produce with the device that is offset corresponding signal (" cable shifted signal ") and
(b) the cable shifted signal is sent to cable operations personnel's device.
2. system according to claim 1, the device that wherein the cable shifted signal is sent to the cable operations personnel comprises:
(a) base station computer device, be used to receive the cable shifted signal and to the cable operations personnel provide corresponding indicator and
(b) interface unit device is used to receive the cable shifted signal that sends to described interface unit device from this locality and they is forwarded to the base station computer device.
3. system according to claim 2 further comprises the data network of communicating by letter with the base station computer device, and wherein said interface unit device further comprises and being used for this network service so that forward a signal to the device of base station computer device.
4. system according to claim 1, the device that wherein responds the cable skew comprises that at least one is installed in the device on the cable pulley assembly, be used to produce the magnetic flux that passes this cable and detect the position of this cable, as the function of the described magnetic flux that passes this cable with respect to described normal cable traction line.
5. system according to claim 4, the device that wherein is used for the cable shifted signal is sent to the cable operations personnel comprises:
(a) base station computer device, be used to receive the cable shifted signal and to the cable operations personnel provide corresponding indicator and
(b) configuration give described at least one be used to produce each interface unit device of the device of cable shifted signal, be used for described cable shifted signal is forwarded to the base station computer device.
6. system according to claim 5 further comprises the data network of communicating by letter with the base station computer device, and wherein each interface unit device further comprises and being used for this network service so that forward a signal to the device of base station computer device.
7. system according to claim 4, wherein said at least one each of device that is used for producing magnetic flux and detects the cable position comprises:
(a) be configured in symmetrically on the cable opposite flank and constitute the pair of openings iron core of closed magnetic circuit with cable,
(b) the free-running pierce circuit of a pair of correspondence, the frequency of each pierce circuit is the function of its corresponding inductor current,
(c) be used for detecting the oscillator frequency differential offset device and
(d) device of the cable shifted signal of generation correspondence when differential offset surpasses predetermined threshold.
8. system according to claim 7, the device that wherein is used for the cable shifted signal is sent to the cable operations personnel comprises:
(a) base station computer device, be used to receive the cable shifted signal and to the cable operations personnel provide corresponding indicator and
(b) configuration give described at least one be used to produce each interface unit device of the device of cable shifted signal, be used for described cable shifted signal is forwarded to the base station computer device.
9. system according to claim 8, the device that wherein is used for detecting differential offset comprises the treating apparatus that merges to the interface unit device, is used for poor between the respective cycle of output of measuring oscillator and computation period.
10. system according to claim 5 further comprises the data network of communicating by letter with the base station computer device, and wherein each interface unit device further comprises and being used for this network service so that forward a signal to the device of base station computer device.
11. system according to claim 1 further comprises:
(a) at least one is installed on the corresponding cable pulley assembly and responds in the pulley assembly in the described cable pulley assembly and belongs to the vibration of separating body characteristics, with the device that produces a signal corresponding (" pulley problem signals ") with it and
(b) be used for each pulley problem signals is sent to cable operations personnel's device.
12. system according to claim 11, the device that is used for that wherein the cable shifted signal is sent to cable operations personnel's device and is used for the pulley problem signals is sent to the cable operations personnel comprises:
(a) base station computer device, be used to receive cable skew and pulley problem signals and to the cable operations personnel provide corresponding indicator and
(b) configuration give described at least one be used to produce each interface unit device of the device of cable shifted signal, be used for described signal forwarding to the base station computer device and
(c) configuration give described at least one be used to produce each interface unit device of the device of described pulley problem signals, be used for described signal forwarding to the base station computer device.
13. system according to claim 12 further comprises the data network of communicating by letter with the base station computer device, wherein each interface unit device further comprises and being used for this network service so that forward a signal to the device of base station computer device.
14. system according to claim 11, the device that vibrates in wherein said at least one response cable pulley assembly comprises:
(a) be used for vibration with pulley assembly convert to corresponding signal device and
(b) being used for filtering by the described corresponding signal that the pulley assembly normal running produces, is the device of pulley problem signals and make the component of signal of not filtering.
15. system according to claim 14, the device that is used for that wherein the cable shifted signal is sent to cable operations personnel's device and is used for the pulley problem signals is sent to the cable operations personnel comprises:
(a) base station computer device, be used to receive cable skew and pulley problem signals and to the cable operations personnel provide corresponding indicator and
(b) configuration give described at least one be used to produce each interface unit device of the device of cable shifted signal, be used for described signal forwarding to the base station computer device and
(c) configuration give described at least one be used to produce each interface unit device of the device of pulley problem signals, be used for described signal forwarding to the base station computer device.
16. system according to claim 15 further comprises the data network of communicating by letter with the base station computer device, wherein each interface unit device further comprises and being used for this network service so that forward a signal to the device of base station computer device.
17. system according to claim 11, the device that vibrates in wherein said at least one response cable pulley assembly comprises:
(a) lean against the piezo-electric device that the support component of pulley assembly is installed, be used to respond mechanical pressure and produce signal,
(b) relative piece that moves freely that is configured in piezo-electric device one side with support component,
(c) be used for being offset the device of this piece to piezo-electric device, this side-play amount is enough to make this piece to keep during the vibration that is produced by the pulley assembly normal running near piezo-electric device, but not enough so that this piece knocks piezo-electric device during being to separate the vibration of body characteristics in the pulley assembly at least, described the knocking of piezo-electric device response produces the pulley problem signals.
18. system according to claim 17, the device that wherein each pulley problem signals is sent to the cable operations personnel comprises:
(a) data network,
(b) base station computer device, be used for through this network receive the pulley problem signals and to the cable operations personnel provide corresponding indicator and
(c) configuration give described at least one be used to produce each interface unit device of the device of pulley problem signals, be used for described signal through this forwarded to the base station computer device.
19. system according to claim 18, wherein each interface unit device further comprises:
(a) analog to digital converter,
(b) be used to receive and a plurality of simulation pulley problem signals of multiplexed described device from respective numbers so that produce the pulley problem signals to the analog input end of converter, the output of converter is digitized pulley problem signals,
(c) be used for digitized pulley problem signals be sent to the base station computer device Network Interface Unit and
(d) be used to control the treating apparatus of multiplexed sequence and Network Interface Unit.
20. system according to claim 1 further comprises:
(a) at least one is installed on the aerial cableway delivery vehicle of the correspondence that is supported by cable and responds the excessive of aerial cableway delivery vehicle and waves, with the device that produces a signal corresponding (" excessive wig-wag signal ") with it and
(b) be used for excessive wig-wag signal is sent to cable operations personnel's device.
21. system according to claim 20, wherein said at least one device that is used to produce excessive wig-wag signal comprises:
(a) be used at the device that when the aerial cableway delivery vehicle tilts to exceed the predetermined threshold angle of inclination, produces a signal (" tilting signal ")
(b) be used to measure duration of tilting signal and repetition rate device and
(c) be used at the device that when duration or repetition rate surpass predetermined corresponding threshold value, produces excessive wig-wag signal.
22. system according to claim 11 further comprises:
(a) at least one is installed on the aerial cableway delivery vehicle of the correspondence that is supported by cable and responds the excessive of aerial cableway delivery vehicle and waves, with the device that produces a signal corresponding (" excessive wig-wag signal ") with it and
(b) be used for excessive wig-wag signal is sent to cable operations personnel's device.
23. system according to claim 22, wherein be used for the cable shifted signal is sent to cable operations personnel's device, the device that is used for that the pulley problem signals is sent to cable operations personnel's device and is used for excessive wig-wag signal is sent to the cable operations personnel comprises:
(a) base station computer device is used to receive cable skew, pulley problem signals and excessive wig-wag signal, and provides corresponding indicator to the cable operations personnel,
(b) be arranged on the aerial cableway delivery vehicle, be used to broadcast device from the excessive wig-wag signal of its generation,
(c) at least one is installed in the device that is used to receive the excessive wig-wag signal of being broadcasted on the corresponding cable frames,
(d) configuration give described at least one be used to produce each interface unit device of the device of cable shifted signal, be used for described signal forwarding to the base station computer device and
(e) configuration give described at least one be used to produce each interface unit device of the device of pulley problem signals, be used for described signal forwarding to the base station computer device and
(f) configuration give described at least one be used to receive each interface unit device of the device of the excessive wig-wag signal of being broadcasted, be used for described signal forwarding to the base station computer device.
24. system according to claim 23, the device that wherein is used to broadcast and receive this excessive wig-wag signal comprises a spread spectrum RF transmitter and a spread spectrum RF receiver respectively.
25. system according to claim 23 further comprises the data network of communicating by letter with the base station computer device, wherein each interface unit device further comprises and being used for this network service so that forward a signal to the device of base station computer device.
26. system according to claim 24 further comprises the data network of communicating by letter with the base station computer device, wherein each interface unit device further comprises and being used for this network service so that forward a signal to the device of base station computer device.
27. system according to claim 22, wherein said at least one device that is used to produce excessive wig-wag signal comprises:
(a) be used at the device that tilts to produce when exceeding the predetermined threshold angle of inclination a signal (tilting signal ") whenever the aerial cableway delivery vehicle
(b) be used to measure duration of tilting signal and repetition rate device and
(c) be used at the device that when duration or repetition rate surpass predetermined corresponding threshold value, produces excessive wig-wag signal.
28. system according to claim 27, wherein be used for the cable shifted signal be sent to cable operations personnel's device, the device that is used for that the pulley problem signals is sent to cable operations personnel's device and is used for excessive wig-wag signal is sent to the cable operations personnel comprises:
(a) base station computer device is used to receive cable skew, pulley problem signals and excessive wig-wag signal, and provide corresponding indicator to the cable operations personnel,
(b) be arranged on the aerial cableway delivery vehicle, be used to broadcast device from the excessive wig-wag signal of its generation,
(c) at least one is installed in the device that is used to receive the excessive wig-wag signal of being broadcasted on the corresponding cable frames,
(d) configuration give described at least one be used to produce each interface unit device of the device of cable shifted signal, be used for described signal forwarding to the base station computer device and
(e) configuration give described at least one be used to produce each interface unit device of the device of pulley problem signals, be used for described signal forwarding to the base station computer device and
(f) configuration give described at least one be used to receive each interface unit device of the device of the excessive wig-wag signal of being broadcasted, be used for described signal forwarding to the base station computer device.
29. system according to claim 28, the device that wherein is used to broadcast and receive this excessive wig-wag signal comprises a spread spectrum RF transmitter and a spread spectrum RF receiver respectively.
30. system according to claim 28 further comprises the data network of communicating by letter with the base station computer device, wherein each interface unit device further comprises and being used for this network service so that forward a signal to the device of base station computer device.
31. system according to claim 29 further comprises the data network of communicating by letter with the base station computer device, wherein each interface unit device further comprises and being used for this network service so that forward a signal to the device of base station computer device.
32. system according to claim 4 further comprises:
(a) at least one to be installed on the corresponding cable pulley assembly and to respond in the pulley assembly in the described cable pulley assembly be to belong to the vibration of separating body characteristics at least, with the device that produces a signal corresponding (" pulley problem signals ") with it and
(b) be used for each pulley problem signals is sent to cable operations personnel's device.
33. system according to claim 32, the device that vibrates in wherein said at least one response cable pulley assembly comprises:
(a) be used for vibration with pulley assembly convert to corresponding signal device and
(b) being used for filtering by the described corresponding signal that the pulley assembly normal running produces, is the device of pulley problem signals and make the component of signal of not filtering.
34. system according to claim 32, the device that vibrates in wherein said at least one response cable pulley assembly comprises:
(a) lean against the piezo-electric device that the support component of pulley assembly is installed, be used to respond mechanical pressure and produce signal,
(b) relative piece that moves freely that is configured in piezo-electric device one side with support component,
(c) be used for being offset the device of this piece to piezo-electric device, this side-play amount is enough to make this piece to keep during the vibration that is produced by the pulley assembly normal running near piezo-electric device, but not enough so that this piece knocks piezo-electric device during being to separate the vibration of body characteristics in the pulley assembly at least, described the knocking of piezo-electric device response produces the pulley problem signals.
35. system according to claim 4 further comprises:
(a) at least one is installed on the aerial cableway delivery vehicle of the correspondence that is supported by cable and responds the excessive of aerial cableway delivery vehicle and waves, with the device that produces a signal corresponding (" excessive wig-wag signal ") with it and
(b) be used for excessive wig-wag signal is sent to cable operations personnel's device.
36. system according to claim 35, wherein said at least one device that is used to produce excessive wig-wag signal comprises:
(a) be used at the device that when the aerial cableway delivery vehicle tilts to exceed the predetermined threshold angle of inclination, produces a signal (tilting signal ＂)
(b) be used to measure duration of tilting signal and repetition rate device and
(c) be used at the device that when duration or repetition rate surpass predetermined corresponding threshold value, produces excessive wig-wag signal.
37. a system that is used to monitor the aerial cableway security comprises:
(a) at least one to be installed on the corresponding cable pulley assembly and to respond in the pulley assembly in the described cable pulley assembly be to belong to the vibration of separating body characteristics at least, with the device that produces a signal corresponding (" pulley problem signals ") with it and
(b) be used for each pulley problem signals is sent to cable operations personnel's device.
38. according to the described system of claim 37, the device that wherein is used for the pulley problem signals is sent to the cable operations personnel comprises:
(a) base station computer device, be used to receive cable skew and pulley problem signals and to the cable operations personnel provide corresponding indicator and
(b) configuration give described at least one be used to produce each interface unit device of the device of described pulley problem signals, be used for described signal forwarding to the base station computer device.
39. according to the described system of claim 38, further comprise the data network of communicating by letter with the base station computer device, wherein each interface unit device further comprises and being used for this network service so that forward a signal to the device of base station computer device.
40. according to the described system of claim 37, the device that vibrates in wherein said at least one response cable pulley assembly comprises:
(a) be used for vibration with pulley assembly convert to corresponding signal device and
(b) being used for filtering by the described corresponding signal that the pulley assembly normal running produces, is the device of pulley problem signals and make the component of signal of not filtering.
41. according to the described system of claim 40, the device that wherein is used for the pulley problem signals is sent to the cable operations personnel comprises:
(a) base station computer device, be used to receive cable skew and pulley problem signals and to the cable operations personnel provide corresponding indicator and
(b) configuration give described at least one be used to produce each interface unit device of the device of pulley problem signals, be used for described signal forwarding to the base station computer device.
42. according to the described system of claim 41, further comprise the data network of communicating by letter with the base station computer device, wherein each interface unit device further comprises and being used for this network service so that forward a signal to the device of base station computer device.
43. according to the described system of claim 37, the device that vibrates in wherein said at least one response cable pulley assembly comprises:
(a) lean against the piezo-electric device that the support component of pulley assembly is installed, be used to respond mechanical pressure and produce signal,
(b) relative piece that moves freely that is configured in piezo-electric device one side with support component,
(c) be used for being offset the device of this piece to piezo-electric device, this side-play amount is enough to make this piece to keep during the vibration that is produced by the pulley assembly normal running near piezo-electric device, but not enough so that this piece knocks piezo-electric device during being to separate the vibration of body characteristics in the pulley assembly at least, described the knocking of piezo-electric device response produces the pulley problem signals.
44. according to the described system of claim 43, the device that wherein each pulley problem signals is sent to the cable operations personnel comprises:
(a) data network,
(b) base station computer device, be used for through this network receive the pulley problem signals and to the cable operations personnel provide corresponding indicator and
(c) configuration give described at least one be used to produce each interface unit device of the device of pulley problem signals, be used for described signal through this forwarded to the base station computer device.
45. according to the described system of claim 44, wherein each interface unit device further comprises:
(a) analog to digital converter,
(b) be used to receive and a plurality of simulation pulley problem signals of multiplexed described device from respective numbers so that produce the pulley problem signals to the analog input end of converter, the output of converter is digitized pulley problem signals,
(c) be used for digitized pulley problem signals be sent to the base station computer device Network Interface Unit and
(d) be used to control the device of multiplexed sequence and Network Interface Unit.
46., further comprise according to the described system of claim 37:
(a) at least one is installed on the aerial cableway delivery vehicle of the correspondence that is supported by cable and responds the excessive of aerial cableway delivery vehicle and waves, with the device that produces a signal corresponding (" excessive wig-wag signal ") with it and
(b) be used for excessive wig-wag signal is sent to cable operations personnel's device.
47. according to the described system of claim 46, the device that is used for that wherein the pulley problem signals is sent to cable operations personnel's device and is used for excessive wig-wag signal is sent to the cable operations personnel comprises:
(a) base station computer device is used to receive pulley problem signals and excessive wig-wag signal, and provides corresponding indicator to the cable operations personnel,
(b) be arranged on the aerial cableway delivery vehicle, be used to broadcast device from the excessive wig-wag signal of its generation,
(c) at least one is installed in the device that is used to receive the excessive wig-wag signal of being broadcasted on the corresponding cable frames,
(d) configuration give described at least one be used to produce each interface unit device of the device of pulley problem signals, be used for described signal forwarding to the base station computer device and
(e) configuration give described at least one be used to receive each interface unit device of the device of the excessive wig-wag signal of being broadcasted, be used for described signal forwarding to the base station computer device.
48. according to the described system of claim 47, the device that wherein is used to broadcast and receive this excessive wig-wag signal comprises a spread spectrum RF transmitter and a spread spectrum RF receiver respectively.
49. according to the described system of claim 47, further comprise the data network of communicating by letter with the base station computer device, wherein each interface unit device further comprises and being used for this network service so that forward a signal to the device of base station computer device.
50. according to the described system of claim 48, further comprise the data network of communicating by letter with the base station computer device, wherein each interface unit device further comprises and being used for this network service so that forward a signal to the device of base station computer device.
51. according to the described system of claim 46, wherein said at least one device that is used to produce excessive wig-wag signal comprises:
(a) be used at the device that when the aerial cableway delivery vehicle tilts to exceed the predetermined threshold angle of inclination, produces a signal (tilting signal ＂)
(b) be used to measure duration of tilting signal and repetition rate device and
(c) be used at the device that when duration or repetition rate surpass predetermined corresponding threshold value, produces excessive wig-wag signal.
52. according to the described system of claim 51, the device that is used for that wherein the pulley problem signals is sent to cable operations personnel's device and is used for excessive wig-wag signal is sent to the cable operations personnel comprises:
(a) base station computer device is used to receive pulley problem signals and excessive wig-wag signal, and provides corresponding indicator to the cable operations personnel,
(b) be arranged on the aerial cableway delivery vehicle, be used to broadcast device from the excessive wig-wag signal of its generation,
(c) at least one is installed in the device that is used to receive the excessive wig-wag signal of being broadcasted on the corresponding cable frames,
(d) configuration give described at least one be used to produce each interface unit device of the device of pulley problem signals, be used for described signal forwarding to the base station computer device and
(e) configuration give described at least one be used to receive each interface unit device of the device of the excessive wig-wag signal of being broadcasted, be used for described signal forwarding to the base station computer device.
53. according to the described system of claim 52, the device that wherein is used to broadcast and receive this excessive wig-wag signal comprises a spread spectrum RF transmitter and a spread spectrum RF receiver respectively.
54. according to the described system of claim 52, further comprise the data network of communicating by letter with the base station computer device, wherein each interface unit device further comprises and being used for this network service so that forward a signal to the device of base station computer device.
55. according to the described system of claim 53, further comprise the data network of communicating by letter with the base station computer device, wherein each interface unit device further comprises and being used for this network service so that forward a signal to the device of base station computer device.
56. a system that is used to monitor the aerial cableway security comprises:
(a) at least one is installed on the aerial cableway delivery vehicle of the correspondence that is supported by cable and responds the excessive of aerial cableway delivery vehicle and waves, with the device that produces a signal corresponding (" excessive wig-wag signal ") with it and
(b) be used for excessive wig-wag signal is sent to cable operations personnel's device.
57. according to the described system of claim 56, wherein said at least one device that is used for excessive wig-wag signal is sent to the cable operations personnel comprises:
(a) base station computer device is used to receive excessive wig-wag signal and provides corresponding indicator to the cable operations personnel,
(b) be arranged on the aerial cableway delivery vehicle, be used to broadcast device from the excessive wig-wag signal of its generation,
(c) at least one be installed in the device that is used to receive the excessive wig-wag signal of being broadcasted on the corresponding cable frames and
(d) configuration give described at least one be used to receive each interface unit device of the device of the excessive wig-wag signal of being broadcasted, be used for described signal forwarding to the base station computer device.
58. according to the described system of claim 57, wherein said at least one device that is used to broadcast and receive this excessive wig-wag signal comprises a spread spectrum RF transmitter and a spread spectrum RF receiver respectively.
59. according to the described system of claim 57, further comprise the data network of communicating by letter with the base station computer device, wherein each interface unit device further comprises and being used for this network service so that forward a signal to the device of base station computer device.
60. according to the described system of claim 58, further comprise the data network of communicating by letter with the base station computer device, wherein each interface unit device further comprises and being used for this network service so that forward a signal to the device of base station computer device.
61. according to the described system of claim 56, wherein said at least one device that is used to produce excessive wig-wag signal comprises:
(a) be used at the device that when the aerial cableway delivery vehicle tilts to exceed the predetermined threshold angle of inclination, produces a signal (tilting signal ＂)
(b) be used to measure duration of tilting signal and repetition rate device and
(c) be used at the device that when duration or repetition rate surpass predetermined corresponding threshold value, produces excessive wig-wag signal.
62. according to the described system of claim 61, the device that wherein is used for excessive wig-wag signal is sent to the cable operations personnel comprises:
(a) base station computer device is used to receive excessive wig-wag signal and provides corresponding indicator to the cable operations personnel,
(b) be arranged on the aerial cableway delivery vehicle, be used to broadcast device from the excessive wig-wag signal of its generation,
(c) at least one be installed in the device that is used to receive the excessive wig-wag signal of being broadcasted on the corresponding cable frames and
(d) configuration give described at least one be used to receive each interface unit device of the device of the excessive wig-wag signal of being broadcasted, be used for described signal forwarding to the base station computer device.
63. according to the described system of claim 62, the device that wherein is used to broadcast and receive this excessive wig-wag signal comprises a spread spectrum RF transmitter and a spread spectrum RF receiver respectively.
64. according to the described system of claim 62, further comprise the data network of communicating by letter with the base station computer device, wherein each interface unit device further comprises and being used for this network service so that forward a signal to the device of base station computer device.
65. according to the described system of claim 63, further comprise the data network of communicating by letter with the base station computer device, wherein each interface unit device further comprises and being used for this network service so that forward a signal to the device of base station computer device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95193778 CN1154172A (en) | 1994-04-28 | 1995-04-28 | Ropeway safety monitoring system |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/234,572 | 1994-04-28 | ||
| CN 95193778 CN1154172A (en) | 1994-04-28 | 1995-04-28 | Ropeway safety monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1154172A true CN1154172A (en) | 1997-07-09 |
Family
ID=5082579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95193778 Pending CN1154172A (en) | 1994-04-28 | 1995-04-28 | Ropeway safety monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1154172A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101633360A (en) * | 2008-07-24 | 2010-01-27 | 因诺瓦专利有限责任公司 | Cable car system |
| CN102501857A (en) * | 2011-10-12 | 2012-06-20 | 山东省科学院自动化研究所 | Passenger transport cableway safety device based on load distortion |
| CN103057547A (en) * | 2012-12-19 | 2013-04-24 | 山东省科学院自动化研究所 | Method and device for detecting steel rope twisting faults of reciprocating cableways |
| CN103103919A (en) * | 2013-01-21 | 2013-05-15 | 重庆交通大学 | Cable bent tower with self detection device and cable bent tower surface crack detection method |
| CN104097644A (en) * | 2014-07-31 | 2014-10-15 | 泰安市泰山索道运营中心 | Ropeway running management system |
| CN104122083A (en) * | 2014-07-31 | 2014-10-29 | 泰安市泰山索道运营中心 | Cableway bracket roller detection method and detection system thereof |
| CN105539514A (en) * | 2015-12-02 | 2016-05-04 | 山东省科学院自动化研究所 | Winding preventing system and method for steel wire ropes for reciprocating type passenger ropeway |
| CN107710635A (en) * | 2015-07-07 | 2018-02-16 | 西门子公司 | Conversion between the section of network |
| CN111469865A (en) * | 2019-01-24 | 2020-07-31 | 莱特纳股份公司 | Cable conveying system |
| CN113906269A (en) * | 2019-05-28 | 2022-01-07 | 创新专利有限公司 | Method for detecting wear of cable rollers of a cableway device |
-
1995
- 1995-04-28 CN CN 95193778 patent/CN1154172A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101633360A (en) * | 2008-07-24 | 2010-01-27 | 因诺瓦专利有限责任公司 | Cable car system |
| CN101633360B (en) * | 2008-07-24 | 2017-03-22 | 因诺瓦专利有限责任公司 | Cable car system |
| CN102501857A (en) * | 2011-10-12 | 2012-06-20 | 山东省科学院自动化研究所 | Passenger transport cableway safety device based on load distortion |
| CN103057547B (en) * | 2012-12-19 | 2015-06-03 | 山东省科学院自动化研究所 | Method and device for detecting steel rope twisting faults of reciprocating cableways |
| CN103057547A (en) * | 2012-12-19 | 2013-04-24 | 山东省科学院自动化研究所 | Method and device for detecting steel rope twisting faults of reciprocating cableways |
| CN103103919A (en) * | 2013-01-21 | 2013-05-15 | 重庆交通大学 | Cable bent tower with self detection device and cable bent tower surface crack detection method |
| CN103103919B (en) * | 2013-01-21 | 2014-12-03 | 重庆交通大学 | Cable bent tower with self detection device and cable bent tower surface crack detection method |
| CN104122083A (en) * | 2014-07-31 | 2014-10-29 | 泰安市泰山索道运营中心 | Cableway bracket roller detection method and detection system thereof |
| CN104097644A (en) * | 2014-07-31 | 2014-10-15 | 泰安市泰山索道运营中心 | Ropeway running management system |
| CN107710635A (en) * | 2015-07-07 | 2018-02-16 | 西门子公司 | Conversion between the section of network |
| CN107710635B (en) * | 2015-07-07 | 2021-04-13 | 西门子公司 | Mobile network user and method, section device and modulation-demodulation device thereof |
| CN105539514A (en) * | 2015-12-02 | 2016-05-04 | 山东省科学院自动化研究所 | Winding preventing system and method for steel wire ropes for reciprocating type passenger ropeway |
| CN111469865A (en) * | 2019-01-24 | 2020-07-31 | 莱特纳股份公司 | Cable conveying system |
| CN111469865B (en) * | 2019-01-24 | 2023-08-29 | 莱特纳股份公司 | Cable conveying system |
| CN113906269A (en) * | 2019-05-28 | 2022-01-07 | 创新专利有限公司 | Method for detecting wear of cable rollers of a cableway device |
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