CN101700854A - System and method for monitoring optimum hoisting height of shore bridge container - Google Patents
System and method for monitoring optimum hoisting height of shore bridge container Download PDFInfo
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- CN101700854A CN101700854A CN200910225161A CN200910225161A CN101700854A CN 101700854 A CN101700854 A CN 101700854A CN 200910225161 A CN200910225161 A CN 200910225161A CN 200910225161 A CN200910225161 A CN 200910225161A CN 101700854 A CN101700854 A CN 101700854A
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Abstract
The invention relates to a monitoring system of the optimum hoisting height of a shore bridge container. The monitoring system comprises a hanger position detection module, a container piling height measurement module, an optimum height monitoring device, a hanger control module and/or a warning device, wherein the hanger position detection module and the container piling height measurement device are electrically connected with the hanger control module and/or the warning device respectively through the optimum height monitoring device; and preferably, the hanger position detection module comprises a trolley position coder and a hoisting position coder. The invention also relates to a relevant monitoring method. The monitoring system is compact and novel and can monitor a distance between a hanger and the piled outline height of a container, warns a driver to realize the operation state of the optimum hoisting height, reduces the hoisting height, saves resources, guarantees high-speed hoisting and safe operation, improves the operation efficiency, reduces the mechanical wear, prolongs the service life of steel wires, reduces the labor intensity, has safety and reliability and is suitable for large-scale popularization.
Description
Technical field
The present invention relates to the container handling technical field, particularly bank bridge container hoisting process control system technical field specifically is meant a kind of optimum hoisting height of shore bridge container monitored control system and method for supervising.
Background technology
In the modern society, the fast development of logistics makes container hanging more and more pursue efficiently, bank bridge container lifting be the container crane on the steamer of bank to land conveying tools (as container truck) or the container crane on the land conveying tools to steamer, because container stacking is in picturesque disorder, just uneven on the steamer.Careless slightly in the middle of the lifting, freight container will be knocked over, and serious safety misadventure may be caused.In addition, bank bridge self moving of car speed is very fast, the driver position is on the top of suspender, height observation to suspender is not very responsive, therefore, and for the purpose of being perfectly safe, in hoisting process the driver often suspender draw very high, far above the relevant container height in suspender below, and then travelling car, avoid suspender in motion process with steamer on freight container serious collision and mould turnover accident take place.But the running orbit of the high pull-up of this height has increased range ability, has particularly increased lifting altitude, may cause the lifting time to increase, and decrease in efficiency increases the crane energy consumption greatly, also increases mechanical wear simultaneously and has reduced rope service-life.
In the hoisting process, if can reduce unnecessary operation height, can be so that advantages such as operating efficiency height, energy savings, minimizing mechanical wears, but it is foregoing because the driver is the top at suspender, height observation to suspender is not very responsive, such control is difficulty highly very, also easily because human elements such as kinematic velocity, dysopia, fatigue driving, misoperationes, causes freight container on suspender and the steamer or other structure to bump and causes major accident.
In order to allow suspender in the process that hoists and transfer, walk at " optimum height ", need to introduce the distance that to assist the driver to know the profile height of the container stacking that suspender is relevant with its below, thereby realize hoisting, rather than be higher than the necessary security height far away and move at the necessary security height.
Existing bank bridge container crane also has the employing semiautomatic control, i.e. S. A. bank bridge, its lifting track are to generate automatically and control, promptly are not that the driver controls, and the track that it is walked also is more satisfactory " optimum height " track.This system is very complicated, cost is also very high, because the track operation is that automatic guidance exists certain safety problem, simultaneously, necessary and the rocking-prevention function in the path of motion of S. A. bank bridge crane dress, the automatic orbit function is united use, and rocking-prevention function and automatic orbit function also are not widely accepted at present for various reasons, what we here proposed is that running orbit remains driver operation, comprise anti-shaking, but obtain elevation information accurately by means of height measuring device, be equivalent to the function of S. A. bank bridge is decomposed, allow equipment go the thing (as measured altitude) that realizes that the people is difficult to accomplish, and the reservation people is Myself relatively cinch (shaking and automatic orbit as anti-), use automanual system together and there is no need to bundle, by this change, the system architecture system is very simple, practical, safety is very high, particularly good economy performance, practical, be easy to promote.
Summary of the invention
The objective of the invention is to have overcome above-mentioned shortcoming of the prior art, a kind of optimum hoisting height of shore bridge container monitored control system and method for supervising are provided, this optimum hoisting height of shore bridge container monitored control system novelty simple for structure, can monitor the distance between the profile height of suspender and container stacking, realize lifting " optimum height " running state, reduce hoisting depth, energy savings, guarantee the high speed of lifting, safe operation improves operating efficiency, reduces mechanical wear, prolong rope service-life, reduce labour intensity, safe and reliable, be suitable for large-scale promotion application.
To achieve these goals, in a first aspect of the present invention, a kind of optimum hoisting height of shore bridge container monitored control system is provided, be characterized in, comprise the spreader position detection module, the container stacking height measuring device, " optimum height " control monitor unit, suspender control module and/or caution alarm set, described spreader position detection module and described container stacking height measuring device are electrically connected described suspender control module and/or caution alarm set by described " optimum height " control monitor unit respectively, the container stacking high computational suspender safe operation height that described thereby " optimum height " control monitor unit is measured according to the spreader position and the described container stacking height measuring device of described spreader position detection module measurement, and with suspender real-world operation aspect ratio, control the action of described suspender control module and/or described caution alarm set according to comparative result.
Preferably, described spreader position detection module comprises the dolly position coder and the position coder that hoists, and described dolly position coder and the described position coder that hoists are electrically connected described " optimum height " control monitor unit respectively.
More preferably, described dolly position coder comprises dolly position relative coding device and dolly limit switch unit, and described dolly position relative coding device and described dolly limit switch unit are electrically connected described " optimum height " control monitor unit respectively.
More preferably, described dolly position coder is a dolly position absolute encoder.
More preferably, the described position coder that hoists comprises hoist the position relative coding device and the limit switch unit that hoists, and described position relative coding device and the described limit switch unit that hoists of hoisting is electrically connected described " optimum height " control monitor unit respectively.
More preferably, the described position coder that hoists is the position absolute encoder that hoists.
Preferably, described container stacking height measuring device is laser rangefinder or ultrasonic distance measuring apparatus, and described caution alarm set is sound caution alarm set or visual alarm alarm set.
Preferably, described suspender control module comprises the dolly control unit and the control unit that hoists, and described " optimum height " control monitor unit is electrically connected described dolly control unit and the described control unit that hoists respectively.
Preferably, described " optimum height " control monitor unit and described suspender control module adopt PLC programmable logic controller (PLC) or nonshared control unit or industrial computer respectively.
Preferably, described " optimum height " control monitor unit and described suspender control module integrate.
In a second aspect of the present invention, a kind of optimum hoisting height of shore bridge container method for supervising is provided, be characterized in, use above-mentioned optimum hoisting height of shore bridge container monitored control system, comprise step:
(1) measures spreader position by described spreader position detection module, measure the container stacking height by described container stacking height measuring device, and send information to described " optimum height " control monitor unit about described spreader position and described container stacking height;
(2) described " optimum height " control monitor unit is according to described information calculations suspender safe operation height, and with suspender real-world operation aspect ratio, if described suspender real-world operation height is not in described suspender safe operation height, the described suspender control module of then described " optimum height " control monitor unit direct control is adjusted the operation of suspender and/or is controlled the operation that described caution alarm set warning reminding driver adjusts suspender; Be in described suspender safe operation height until described suspender real-world operation height.
Preferably, described spreader position detection module comprises the dolly position coder and the position coder that hoists, obtain the left and right sides position of dolly in the suspender mobile space by described dolly position coder, obtain the upper-lower position of suspender in the suspender mobile space by the described position coder that hoists, obtain described spreader position by position, the described left and right sides and described upper-lower position.
More preferably, described dolly position coder comprises dolly position relative coding device and dolly limit switch unit, obtains position, the described left and right sides by described dolly position relative coding device and described dolly limit switch unit.
More preferably, described dolly position coder is a dolly position absolute encoder, obtains position, the described left and right sides by described dolly position absolute encoder.
More preferably, the described position coder that hoists comprises hoist the position relative coding device and the limit switch unit that hoists, and obtains described upper-lower position by described position relative coding device and the described limit switch unit that hoists of hoisting.
More preferably, the described position coder that hoists is the position absolute encoder that hoists, and obtains described upper-lower position by the described position absolute encoder that hoists.
Preferably, described container stacking height measuring device is laser rangefinder or ultrasonic distance measuring apparatus, measures described measurement device container stacking height by described laser rangefinder or described ultrasonic distance measuring apparatus.
Preferably, described caution alarm set is sound caution alarm set or visual alarm alarm set, and described " optimum height " control monitor unit is controlled described sound caution alarm set sounding alarm, or control described visual alarm alarm set luminous/display alarm.
Preferably, described suspender control module comprises the dolly control unit and the control unit that hoists, by the left and right sides position of described dolly control unit control dolly in the suspender mobile space, by the described upper-lower position of control unit control suspender in the suspender mobile space that hoist.
Beneficial effect of the present invention is: because the present invention detects the operation height of suspender by the spreader position detection module, be responsible for measuring the height profile of container stacking under the suspender by the container stacking height measuring device, be responsible for the operation height of suspender is monitored judgement in real time with the distance between the relevant container stacking height by " optimum height " control monitor unit, control suspender in order to prompting assistance driver and move at " optimum height ".
Compare with traditional manual operation, the present invention can guarantee that the operation height that lifts moves at the height of the best, promptly guarantee high speed, safety, the energy-saving run of lifting, avoid hoisting height to raise excessively again, promptly reduce hoisting depth, reduce mechanical wear, prolong rope service-life, simultaneously, because the automatic prompting and the warning of height are arranged, can reduce labour intensity greatly, reduce safety misadventure etc.
Compare with existing S. A. bank bridge, because the automatic orbit function of S. A. bank bridge must be used together with rocking-prevention function, and present its efficient of rocking-prevention function and human comfort still can not be satisfactory, so, S. A. bank bridge is when practical operation, be difficult to be accepted by the driver, in addition, S. A. bank bridge is owing to be machine operation automatically in cooresponding motion process, therefore, safety for system, complexity, all there are a lot of challenges in reliability and economy, and the running orbit of suspender of the present invention is still by driver operation, but accurately monitor distance between suspender and the container height by means of " optimum height " control monitor unit, this structural system is very simple, practical, safety is very high, and cost is low.
As, present reversing automobile ancillary system and reversing automobile automanual system, the former is owing to operated by the people, systematic comparison is simple, reliable, economical, and the latter is because S. A., and systematic comparison complexity, reliability and economy be difficult to guarantee, so, both application features and field are different, but generalization is also different.
Beneficial effect of the present invention is, can be with simple, low cost method solves the main problem in the lifting of bank bridge, and do not need to use with other technology and equipment binding, by using the optimum hoisting height of shore bridge container monitored control system, the height of container hanging is moved by the auxiliary optimum height of realizing of monitored control system of the present invention, anti-shaking with running orbit in the lifting then still has the driver to finish, just function (as the highly judging) equipment of transferring to that the people is difficult to realize is helped, and the part that the people can realize (anti-shaking and running orbit) still keeps to the people and operates, thereby realizing using cheaply, means solve principal contradiction, realize the energy-saving and cost-reducing of bank bridge crane dress, because good economy performance, very suitable, be of wide application.
Description of drawings
Fig. 1 is the structural representation of a specific embodiment of the present invention.
Fig. 2 is the principle of work scheme drawing of specific embodiment shown in Figure 1.
Fig. 3 is the workflow scheme drawing of specific embodiment shown in Figure 1.
The specific embodiment
In order more to be expressly understood technology contents of the present invention, describe in detail especially exemplified by following examples.
See also shown in Figure 1, optimum hoisting height of shore bridge container monitored control system of the present invention comprises spreader position detection module, container stacking height measuring device, " optimum height " control monitor unit, suspender control module and/or caution alarm set, and described spreader position detection module and described container stacking height measuring device are electrically connected described suspender control module and/or caution alarm set by described " optimum height " control monitor unit respectively.The spreader position detection module detects the operation height of suspender, the container stacking height measuring device is responsible for measuring the height profile of container stacking under the suspender, " optimum height " control monitor unit is responsible for the operation height of suspender is monitored judgement in real time with the distance between the relevant container stacking height, controls suspender in order to prompting assistance driver and moves at " optimum height ".
Preferably, described spreader position detection module comprises the dolly position coder and the position coder that hoists, and described dolly position coder and the described position coder that hoists are electrically connected described " optimum height " control monitor unit respectively.
In specific embodiments of the invention, described dolly position coder comprises dolly position relative coding device and dolly limit switch unit, and described dolly position relative coding device and described dolly limit switch unit are electrically connected described " optimum height " control monitor unit respectively.Described dolly position coder also can be a dolly position absolute encoder.
In specific embodiments of the invention, the described position coder that hoists comprises hoist the position relative coding device and the limit switch unit that hoists, and described position relative coding device and the described limit switch unit that hoists of hoisting is electrically connected described " optimum height " control monitor unit respectively.The described position coder that hoists also can be the position absolute encoder that hoists.
Preferably, described container stacking height measuring device is laser rangefinder or ultrasonic distance measuring apparatus, and described caution alarm set is sound caution alarm set or visual alarm alarm set.
In specific embodiments of the invention, described suspender control module comprises the dolly control unit and the control unit that hoists, and described " optimum height " control monitor unit is electrically connected described dolly control unit and the described control unit that hoists respectively.
Preferably, described " optimum height " control monitor unit and described suspender control module adopt PLC programmable logic controller (PLC) or nonshared control unit or industrial computer respectively, can be other separate units of branch, also can be shared one units.
When the present invention installs, because usually crane has been equipped with dolly position relative coding device and dolly limit switch unit in himself control system, therefore the present invention can directly adopt the existing dolly of crane position relative coding device and dolly limit switch unit, can obtain the left and right sides position of dolly in the suspender mobile space by them, this position also can be obtained by dolly position absolute encoder certainly; Because crane also has been equipped with hoist the position relative coding device and the limit switch unit that hoists in himself control system, therefore the present invention can directly adopt the existing position relative coding device and the limit switch unit that hoists of hoisting of crane, can obtain the upper-lower position of suspender in the suspender mobile space by them, also can hoist position absolute encoder of this position obtains certainly.Their information forms the locus of suspender at the suspender mobile space jointly.Height measuring device can be laser rangefinder or ultrasonic distance measuring apparatus, apomecometer can be installed in above the dolly to move with dolly and obtain the profile of following container stacking, also can be to be fixed on crane crossbeam scan-type apomecometer 18 (see figure 2)s of reaching the standard grade to obtain the profile of following container stacking.
In the middle of reality is used, see also shown in Figure 2, hoisting crane 11 can move to a case position on the steamer by car load, and wherein this Fig. 2 is the section-drawing of a case position, on this case position, dolly 12 can sway, suspender 14 can move up and down, and by moving of control dolly 12 and suspender 14, promptly can carry out charge and discharge operations to freight container 16, normally the container crane on the steamer 17 is installed on the truck 15, or the container crane on the truck 15 is installed on the steamer 17.During loading and unloading, the driver is sitting in 13 li of driver's cabs with dolly 12 interlocks.
Crane is in hoisting process, and track route can illustrate as a, b, three routes of c, and a route represents to be higher than the track of the maximum height operation of freight container on the steamer, and it is safest, but operation is highly the highest, distance farthest.The c route represents if operate in " optimum height " track by means of the height measuring device driver, promptly be safe, also be highly minimum, distance is the shortest.The b circuit is represented present driver's operation conditions, owing to there is not height measuring device, the driver is grasping the track of operation according to the experience of oneself, because aforesaid driver observation angle is from top to down, highly judge not very sensitive, usually the driver for safety, the track of walking is higher than " optimum height " track c far away.
Obtain the left and right sides position of dolly in the suspender mobile space by dolly position relative coding device and dolly limit switch unit, maybe can obtain the left and right sides position of dolly in the suspender mobile space by dolly position absolute encoder, the position relative coding device and the limit switch unit that hoists can obtain the upper-lower position of suspender in the suspender mobile space by hoisting, maybe can be by the position absolute encoder that hoists obtain hoisting position, the left and right sides in the suspender mobile space, thus the locus of suspender formed jointly at the suspender mobile space; Obtain the profile of following container stacking by being fixed on the crane crossbeam scan-type apomecometer 18 of reaching the standard grade, and give " optimum height " control monitor unit with all information transfer that record, " optimum height " control monitor unit is responsible for the operation height (realizing by the spreader position measurement module) of suspender is monitored in real time with the distance between the relevant container stacking height (realizing by the container stacking height measuring device), moves at " optimum height " in order to point out the assistance driver to control suspender.
No matter be freight container to be arranged or do not have freight container, can calculate the actual height of suspender, when suspender rises above container stacking or during descending motion, if suspender and relevant container stacking have bump may, when promptly not entering into safety zone, when entering into safety zone with suspender, provide corresponding prompting, as acousto-optic and display alarm etc., even participate in hoisting and moving of car control of suspender, as limited speed, deceleration or decontrol speed limit etc., whether the driver can know and control suspender in time and move at " optimum height " like this.
The position control of suspender operation is that (it also is the crane existing device by the overhead crane control module, usually realize by PLC programmable logic controller (PLC) or nonshared control unit or industrial computer) carry out the dolly control and the control that hoists, " optimum height " control monitor unit helps the driver to realize " optimum height " operation for whether suspender enters safe altitude, its commander's overhead crane control module.Usually being realized by PLC programmable logic controller (PLC) or nonshared control unit or industrial computer, can be control unit independently with the overhead crane control module, also can be the control unit of one.
See also shown in Figure 3, in the optimum hoisting height of shore bridge container monitored control system of the present invention, software flow is realized by " optimum height " control monitor unit, at first, the readset vanning is stacked height detecting device and is calculated associated container stacking height profile, reads dolly again and the encoder information that hoists, calculate the position of suspender, whether hung freight container by understanding suspender then, revised the safe operation distance, this safety distance has certain variation according to the suspender running velocity.Calculate suspender and associated container and stack the safety distance of profile, judge whether at the safe operation height, if judge that operation is safe, then remind or the cancellation speed limit, suspender can run at high speed, if judge operation not at safety zone, then reports to the police immediately or startup deceleration or speed limit or parking operation procedure, at last, operating personal in service can obtain " optimum height " lifting running state thus.
Adopted the present invention, detect the operation height of suspender by the spreader position detection module, be responsible for measuring the height profile of container stacking under the suspender by the container stacking height measuring device, be responsible for the operation height of suspender is monitored judgement in real time with the distance between the relevant container stacking height by " optimum height " control monitor unit, control suspender in order to prompting assistance driver and move at " optimum height ".
To sum up, compare with traditional manual operation, the present invention can guarantee that the operation height that lifts moves at the height of the best, promptly guarantee high speed, safety, the energy-saving run of lifting, avoid hoisting height to raise excessively again, promptly reduce hoisting depth, reduce mechanical wear, prolong rope service-life, simultaneously, because the automatic prompting and the warning of height are arranged, can reduce labour intensity greatly, reduce safety misadventure etc.
Compare with existing S. A. bank bridge, because the automatic orbit function of S. A. bank bridge must be used together with rocking-prevention function, and present its efficient of rocking-prevention function and human comfort still can not be satisfactory, so, S. A. bank bridge is when practical operation, be difficult to be accepted by the driver, in addition, S. A. bank bridge is owing to be machine operation automatically in cooresponding motion process, therefore, safety for system, complexity, all there are a lot of challenges in reliability and economy, and the running orbit of suspender of the present invention is still by driver operation, but accurately monitor distance between suspender and the container height by means of " optimum height " control monitor unit, this structural system is very simple, practical, safety is very high, and cost is low.
As, present reversing automobile ancillary system and reversing automobile automanual system, the former is owing to operated by the people, systematic comparison is simple, reliable, economical, and the latter is because S. A., and systematic comparison complexity, reliability and economy be difficult to guarantee, so, both application features and field are different, but generalization is also different.
Beneficial effect of the present invention is, can be with simple, low cost method solves the main problem in the lifting of bank bridge, and do not need to use with other technology and equipment binding, by using the optimum hoisting height of shore bridge container monitored control system, the height of container hanging is moved by the auxiliary optimum height of realizing of monitored control system of the present invention, anti-shaking with running orbit in the lifting then still has the driver to finish, just function (as the highly judging) equipment of transferring to that the people is difficult to realize is helped, and the part that the people can realize (anti-shaking and running orbit) still keeps to the people and operates, thereby realizing using cheaply, means solve principal contradiction, realize the energy-saving and cost-reducing of bank bridge crane dress, because good economy performance, very suitable, be of wide application.
In this specification sheets, the present invention is described with reference to its certain embodiments.But, still can make various modifications and conversion obviously and not deviate from the spirit and scope of the present invention.Therefore, specification sheets and accompanying drawing are regarded in an illustrative, rather than a restrictive.
Claims (19)
1. optimum hoisting height of shore bridge container monitored control system, it is characterized in that, comprise the spreader position detection module, the container stacking height measuring device, " optimum height " control monitor unit, suspender control module and/or caution alarm set, described spreader position detection module and described container stacking height measuring device are electrically connected described suspender control module and/or caution alarm set by described " optimum height " control monitor unit respectively, the container stacking high computational suspender safe operation height that described thereby " optimum height " control monitor unit is measured according to the spreader position and the described container stacking height measuring device of described spreader position detection module measurement, and with suspender real-world operation aspect ratio, control the action of described suspender control module and/or described caution alarm set according to comparative result.
2. optimum hoisting height of shore bridge container monitored control system according to claim 1, it is characterized in that, described spreader position detection module comprises the dolly position coder and the position coder that hoists, and described dolly position coder and the described position coder that hoists are electrically connected described " optimum height " control monitor unit respectively.
3. optimum hoisting height of shore bridge container monitored control system according to claim 2, it is characterized in that, described dolly position coder comprises dolly position relative coding device and dolly limit switch unit, and described dolly position relative coding device and described dolly limit switch unit are electrically connected described " optimum height " control monitor unit respectively.
4. optimum hoisting height of shore bridge container monitored control system according to claim 2 is characterized in that, described dolly position coder is a dolly position absolute encoder.
5. optimum hoisting height of shore bridge container monitored control system according to claim 2, it is characterized in that, the described position coder that hoists comprises hoist the position relative coding device and the limit switch unit that hoists, and described position relative coding device and the described limit switch unit that hoists of hoisting is electrically connected described " optimum height " control monitor unit respectively.
6. optimum hoisting height of shore bridge container monitored control system according to claim 2 is characterized in that, the described position coder that hoists is the position absolute encoder that hoists.
7. optimum hoisting height of shore bridge container monitored control system according to claim 1, it is characterized in that, described container stacking height measuring device is laser rangefinder or ultrasonic distance measuring apparatus, and described caution alarm set is sound caution alarm set or visual alarm alarm set.
8. optimum hoisting height of shore bridge container monitored control system according to claim 1, it is characterized in that, described suspender control module comprises the dolly control unit and the control unit that hoists, and described " optimum height " control monitor unit is electrically connected described dolly control unit and the described control unit that hoists respectively.
9. optimum hoisting height of shore bridge container monitored control system according to claim 1, it is characterized in that described " optimum height " control monitor unit and described suspender control module adopt PLC programmable logic controller (PLC) or nonshared control unit or industrial computer respectively.
10. optimum hoisting height of shore bridge container monitored control system according to claim 1 is characterized in that, described " optimum height " control monitor unit and described suspender control module integrate.
11. an optimum hoisting height of shore bridge container method for supervising is characterized in that, uses the described optimum hoisting height of shore bridge container monitored control system of claim 1, comprises step:
(1) measures spreader position by described spreader position detection module, measure the container stacking height by described container stacking height measuring device, and send information to described " optimum height " control monitor unit about described spreader position and described container stacking height;
(2) described " optimum height " control monitor unit is according to described information calculations suspender safe operation height, and with suspender real-world operation aspect ratio, if described suspender real-world operation height is not in described suspender safe operation height, the described suspender control module of then described " optimum height " control monitor unit direct control is adjusted the operation of suspender and/or is controlled the operation that described caution alarm set warning reminding driver adjusts suspender; Be in described suspender safe operation height until described suspender real-world operation height.
12. optimum hoisting height of shore bridge container method for supervising according to claim 11, it is characterized in that, described spreader position detection module comprises the dolly position coder and the position coder that hoists, obtain the left and right sides position of dolly in the suspender mobile space by described dolly position coder, obtain the upper-lower position of suspender in the suspender mobile space by the described position coder that hoists, obtain described spreader position by position, the described left and right sides and described upper-lower position.
13. optimum hoisting height of shore bridge container method for supervising according to claim 12, it is characterized in that, described dolly position coder comprises dolly position relative coding device and dolly limit switch unit, obtains position, the described left and right sides by described dolly position relative coding device and described dolly limit switch unit.
14. optimum hoisting height of shore bridge container method for supervising according to claim 12 is characterized in that, described dolly position coder is a dolly position absolute encoder, obtains position, the described left and right sides by described dolly position absolute encoder.
15. optimum hoisting height of shore bridge container method for supervising according to claim 12, it is characterized in that, the described position coder that hoists comprises hoist the position relative coding device and the limit switch unit that hoists, and obtains described upper-lower position by described position relative coding device and the described limit switch unit that hoists of hoisting.
16. optimum hoisting height of shore bridge container method for supervising according to claim 12 is characterized in that, the described position coder that hoists is the position absolute encoder that hoists, and obtains described upper-lower position by the described position absolute encoder that hoists.
17. optimum hoisting height of shore bridge container method for supervising according to claim 11, it is characterized in that, described container stacking height measuring device is laser rangefinder or ultrasonic distance measuring apparatus, measures described measurement device container stacking height by described laser rangefinder or described ultrasonic distance measuring apparatus.
18. optimum hoisting height of shore bridge container method for supervising according to claim 11, it is characterized in that, described caution alarm set is sound caution alarm set or visual alarm alarm set, described " optimum height " control monitor unit is controlled described sound caution alarm set sounding alarm, or control described visual alarm alarm set luminous/display alarm.
19. optimum hoisting height of shore bridge container method for supervising according to claim 11, it is characterized in that, described suspender control module comprises the dolly control unit and the control unit that hoists, by the left and right sides position of described dolly control unit control dolly in the suspender mobile space, by the described upper-lower position of control unit control suspender in the suspender mobile space that hoist.
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| CN200910225161A CN101700854A (en) | 2009-12-02 | 2009-12-02 | System and method for monitoring optimum hoisting height of shore bridge container |
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