CN1603528A - Display apparatus of construction machinery - Google Patents
Display apparatus of construction machinery Download PDFInfo
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- CN1603528A CN1603528A CNA2004100807055A CN200410080705A CN1603528A CN 1603528 A CN1603528 A CN 1603528A CN A2004100807055 A CNA2004100807055 A CN A2004100807055A CN 200410080705 A CN200410080705 A CN 200410080705A CN 1603528 A CN1603528 A CN 1603528A
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- 238000010276 construction Methods 0.000 title claims description 30
- 230000002159 abnormal effect Effects 0.000 claims abstract description 40
- 238000004891 communication Methods 0.000 claims abstract description 18
- 230000005856 abnormality Effects 0.000 claims description 38
- 239000000498 cooling water Substances 0.000 claims description 8
- 239000002826 coolant Substances 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 7
- 239000000446 fuel Substances 0.000 claims description 4
- 230000000977 initiatory effect Effects 0.000 claims 1
- 239000003921 oil Substances 0.000 description 13
- 230000003750 conditioning effect Effects 0.000 description 9
- 230000000007 visual effect Effects 0.000 description 8
- 230000009471 action Effects 0.000 description 6
- 108010066278 cabin-4 Proteins 0.000 description 6
- 101100194816 Caenorhabditis elegans rig-3 gene Proteins 0.000 description 5
- 230000008859 change Effects 0.000 description 5
- 239000010705 motor oil Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 239000007858 starting material Substances 0.000 description 4
- 238000009412 basement excavation Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000003086 colorant Substances 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/26—Indicating devices
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/24—Safety devices, e.g. for preventing overload
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/26—Indicating devices
- E02F9/267—Diagnosing or detecting failure of vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R11/04—Mounting of cameras operative during drive; Arrangement of controls thereof relative to the vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/40—Special vehicles
- B60Y2200/41—Construction vehicles, e.g. graders, excavators
- B60Y2200/412—Excavators
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Component Parts Of Construction Machinery (AREA)
- Closed-Circuit Television Systems (AREA)
Abstract
A camera picture signal provided from a camera 10, communication information provided from a communication device 12, and vehicle state information provided from various sensors, are inputted to a control device 20 of a hydraulic excavator. Abnormal information likely to cause failure of a vehicle, is acquired when exceeding a reference value in a comparing part 27 among signals from the sensors. When the abnormal information is outputted from the comparing part 27, the abnormal information is automatically displayed on a monitor 13.
Description
Technical field
The present invention relates to a kind of driver's cabin that is arranged at construction machineries such as hydraulic crawler excavator, be used to make the operator to understand the display unit of the construction machinery of various information.
Background technology
Example as construction machinery has hydraulic crawler excavator.Hydraulic crawler excavator by Engine driven Hydraulic Pump, will supply to the hydraulic actuator that is made of hydraulic cylinder and hydraulic motor that is installed on each Actuator Division from the pressure oil of this hydraulic pump output as known in the art.In addition, in driver's cabin, take the operator usually, operate these each Actuator Divisions by operating mechanisms such as action bars, carry out the operations such as excavation of native sand by the operator.
In order to make the operator understand the working condition of machinery, various instrument are installed at driver's cabin.For example, the rotational speed meters of motor, fuel meter, coolant water temperature meter, working oil temperature meter, stopwatch etc.In addition, also carry out the information about machine security work, for example whether door lock rod is in the demonstration of normal position etc.In addition, also carry out differentiation that whether starter key insert etc.In addition, also be installed on the identification etc. of kind of the fixture of anterior working rig.In addition, in order to show that these information are that vehicle condition information is provided with display unit.
As this display unit,, obtain practicability as the display unit that coloured image shows in the lump at the monitor picture that utilizes LCD along with the high precision int of LCD, low price etc.By using this display unit, can show multiple information by compact structure, the operator can correctly hold the working condition of machinery.In addition, for in occasion of the possibility that for example has engine overheat etc., when action to machinery taking place produce the abnormality of influence greatly, it is detected by abnormal detector, make the operator understand this situation rapidly and positively, make the structure that shows at monitoring image, this is in that for example patent documentation 1 grade is open.Promptly, when machinery does not have when unusual, on monitoring image, show above-mentioned vehicle condition information, detecting certain by abnormal detector when unusual, monitor switched to show with information the state of this situation of abnormality has taken place, thereby make the operator avoid abnormality, for example become the occasion of superheat state at motor, take to make motor to carry out adequate measures such as idling revolution, prevent the generation of the fault etc. of machinery in advance.
(patent documentation 1) Japanese kokai publication hei 11-81393 communique
Summary of the invention
In recent years, existence is for the tendency of the requirement raising of the safety of operation, in addition, reflected the low price of video camera (video camera, digital camera etc.) etc., when the operator carries out mechanically actuated, video camera is set to the position that becomes its dead angle, particularly the rear position of vehicle shows the image from this video camera, like this, develop the display unit in the visual field at the rear of guaranteeing the operator etc., and obtained practicability.
Here, the video camera image is generally shown at the display unit of being located in the driver's cabin such as LCD, for this reason, in driver's cabin, the image of outside must be shown that the display unit of usefulness and above-mentioned vehicle condition information show that the display unit of usefulness all is installed in the obvious position of operator.During operation the operator in principle with the visual field towards the place ahead, so, need these 2 display unit all are configured to driver's seat the place ahead, these display unit become obstacle, have limited field of front vision, and have operator's scatterbrained possibility.
, above-mentioned vehicle condition information is not must often show during machine work, and abnormal information then requires emergency, as takes place unusually, then must show rapidly.Certainly, when mechanical operate as normal, display abnormality information not.On the other hand, about guaranteeing of operator's the visual field, the visual field can be guaranteed by visual in the place ahead of machinery and side, and the part that becomes the dead angle is mainly rear and oblique rear.Need to confirm this rear and when tiltedly the occasion at rear is for rotation and when retreating, not necessarily need to utilize the visual field of video camera to assist when implementing common digging operation and when vehicle is advanced.
In addition, in order to carry out the centralized management of construction machinery, administrative center to be set, in order from this administrative center each construction machinery being given an order, to provide various information, also the available communication device connects between the related facility between each construction machinery and administrative center.In addition, for the order and the transmission information of the necessity that will will carry out by this communicator is delivered to the operator who makes construction machinery work exactly, preferably still show as message (message) in display unit.
The present invention makes in view of above point, its purpose is suppressed at that operator's the visual field is restricted this problem in the driver's cabin with being to do one's utmost, the operator is in due course positively understand machinery to move needed various information smoothly and efficiently.
In order to achieve the above object, the invention provides a kind of display unit of construction machinery, described construction machinery has motor, by this engine-driven hydraulic pump and a plurality of Actuator Divisions of driving by the pressure oil of supplying with from this hydraulic pump, at least the sensor that detects surplus, engine coolant temperature and the working oil temperature of the fuel that supplies to above-mentioned motor is set, according to the unusual abnormal detector of the signal detection duty of these each sensors, and the video camera that monitors periphery; It is characterized in that: the vehicle condition information optionally show from least 1 sensor output of above-mentioned each sensor is set, in the driver's cabin of above-mentioned construction machinery from the abnormal information of above-mentioned abnormal detector output with from the monitor of the video camera image information of above-mentioned video camera output; Be connected with control device on this monitor, this control device comprises manual switching device and automatic switching control equipment; Described manual switching device switches feasible any one that shows in above-mentioned vehicle condition information and the video camera image information; Described automatic switching control equipment automatically switches the display abnormality information that makes at least from above-mentioned abnormal detector output abnormality information the time.
In addition, in recent years, along with the prosperity of communication network, the equipment that loads communicator at construction machinery for construction machinery is transmitted various command such as production plan and information etc. from related facilities such as administrative centers also obtains practicability.Therefore, be that the communication information also can be presented on the monitor preferably by the information of this communicator transmission.
Be arranged on monitor in the driver's cabin is configured in the driver's seat that the operator sits in driver's cabin anterior position.Be installed in oblique the place ahead of driver's seat, preferably be installed in column, make not hinder field of front vision.On this monitor, show 3 kinds of information at least, as comprise the communication information, then show 4 kinds of information.As display format, icon form, form of message, pattern form etc. are arranged, though dispensable by the image of video camera acquisition, the most handy motion video state shows.As described above, the information that can show on monitor comprises at least 4 kinds of information of vehicle condition information, abnormal information, video camera image information, reception information.In addition, not only be located at the rear position but also be arranged on the occasion at a plurality of positions that comprise excavating gear etc., can select in these video camera image informations any, also can on monitor, carry out 2 pictures and show by manual switching device at video camera.
In the information that constitutes by 4 above kinds, must to understand and require the information of emergency be abnormal information to the operator, when detecting abnormal information by abnormal detector, automatically shows this abnormal information on monitor.Here, as abnormal information, the occasion of charging voltage below setting that battery is arranged, the occasion of the oil pressure of engine oil below setting, engine cooling water or the working oil temperature occasion more than the temperature of regulation, and be located at occasion that the mesh of strainer of the air inlet side of engine filters stops up etc.Preestablished these abnormal informations, will be taken into abnormal detector, compared output valve and setting value, thereby carry out abnormality detection from sensor from the signal of sensor of being located at each one.About this abnormal information, not only comprise the necessary information of conduct by initial setting and unalterable information, and, can make at random to append in user's side and set or change as variable abnormal information.In addition, as the display format of this abnormal information, can be that picture switches fully, in addition, also can be message to be presented on the original picture with overlapping by overlapping form.But abnormal information must show highlightedly.In addition, more positively understand this abnormality in order to make the operator, also can be so that alarm song takes place.
Abnormal information only shows when abnormality takes place, when the unusual state of affairs does not take place, shows out of Memory on monitor.In out of Memory, often obtain at work about the information of the vehicle condition of vehicle operation situation.On the other hand, the video camera image might not be obtained when carrying out common digging operation, in addition, do not need video camera is often worked, for example be used to obtain the video camera of back visibibility, particularly the retreating and necessity when rotating of vehicle, so, sometimes only be set at otherwise become these situations, just do not carry out the photography of video camera.Consider the above state of affairs, can set the information that often shows like this, promptly when machinery starts, show vehicle condition information.
On the other hand, when abnormality takes place, on monitor, show immediately, so common vehicle condition not necessarily must often monitor.And the affirmation in the visual field, rear is not necessarily necessary when carrying out common digging operation, but for the operator, the situation of holding the machinery periphery is very important from the viewpoints such as safety of operation.Consider from this point, also can be arranged to often show photographic image that the needs operation switching device shifter according to the operator shows vehicle condition information or reception information at monitor.In addition, in vehicle condition information (or vehicle condition information and reception information) when being shown in monitor,, also can consider not carry out the situation that the switching ground of displaying contents is operated though need guarantee back visibibility originally.For this reason, set for and must obtain under the state of back visibibility, promptly when operation backward movement operation device of construction machinery and rotary manipulation device, switch and make the video camera image information be shown on the monitor, from the safety of operation guarantee to wait consider even more ideal.
The present invention is owing to constitute as described above, so, single monitor only is set in driver's cabin, the operator promptly can suitably obtain necessary information, so the operability of construction machinery improves, simultaneously, has obtained to carry out safe effects such as operation.
Description of drawings
Fig. 1 is the signal pie graph as the hydraulic crawler excavator of an example of construction machinery.
Fig. 2 be Fig. 1 hydraulic crawler excavator driver's cabin inside want portion's pie graph.
Fig. 3 is the figure of an example of the vehicle condition display frame of expression monitor.
Fig. 4 is the figure of an example of the video camera image display frame of expression monitor.
Fig. 5 is the figure of an example of the communication information display frame of expression monitor.
Fig. 6 is the figure of an example of the abnormality display frame of expression monitor.
Fig. 7 is the block diagram of control device.
Fig. 8 is the key diagram of switching state of the monitoring image of expression the present invention the 1st embodiment.
Fig. 9 is the key diagram of switching state of the monitoring image of expression the present invention the 2nd embodiment.
The specific embodiment
Below, form of implementation of the present invention is described with reference to the accompanying drawings.At first, Fig. 1 represents to constitute as the integral body of the hydraulic crawler excavator of an example of construction machinery.In the figure, label 1 is caterpillar lower running body, and label 2 is a upper rotating body, and label 3 is for being located at the anterior working rig that is made of digging operation device etc. of upper rotating body 2.In addition, on upper rotating body 2, be provided for taking the operator, carry out mechanically operated driver's cabin 4, setting operation device in this driver's cabin 4, this operating means comprise the action bars of the operation of the rotation of the walking of carrying out lower running body 1, upper rotating body 2, the swing arm 3a, the dipper 3b that are configured for the anterior working rig 3 of the such operation of the excavation of native sand, start of scraper bowl 3c etc.
Hydraulic crawler excavator generally constitutes as described above, and usually, its driving makes the hydraulic pump start by motor, becomes the hydraulic drive type of the such hydraulic actuator of driving hydraulic motor and hydraulic cylinder.Therefore, the various sensors of the relevant working condition of detection of engine are set, in each one of fluid power system various sensors are set also, in addition, also sensor installation of each Actuator Division of working rig 3 grades forwardly monitors each one of hydraulic crawler excavator.Comprise preferably operator information of understanding and the information that must understand in the detection information by these each sensors acquisitions, and the information that also can not notify the operator.In addition, the information that the operator need understand is the information about the working condition of vehicle, wherein also has information urgent and that must positively understand.That is,, comprise general vehicle condition information and about the abnormal information of the abnormality generation of the danger that has significant trouble that hydraulic crawler excavator takes place etc. etc. as the person's that needs the notifying operation information.
In addition, in this hydraulic crawler excavator, be provided with the video camera that monitors usefulness.Label 10 guarantees that for being used to back visibibility is arranged at the video camera of the balance weight 5 of upper rotating body 2 rear positions.In addition, label 11 is in the video camera which type of state promptly excavates state for portion near the dipper 3b front end that is installed on anterior working rig 3 is used to confirm the operator from the driver's cabin 4 interior positions of deep-cutting that can not see.Not necessarily leave no choice but be provided with these video cameras 10,11 both sides, the job state that can carry out according to hydraulic crawler excavator and the situation of operation field etc. suitably are provided with, but the video camera 10 of the acquisition back visibibility in these 2 video cameras 10,11 is from guaranteeing that considerations such as job safety are necessary.In addition, the position beyond also can be in these positions also is provided with video camera.
In addition, on hydraulic crawler excavator, be mounted with communicator, can carry out radio communication by this communicator and the related facilities such as administrative center that are in the distant place.Like this, can manage the various construction machineries that comprise hydraulic crawler excavator concentratedly, for example can hold the job status of operation field, or the dispensing of management running stores etc., or carry out the project management of construction machinery.For this reason, communicator 12 (with reference to Fig. 7) and its antenna 12a are set at least on hydraulic crawler excavator.Communication can be received special-purpose at the hydraulic crawler excavator side joint, also can form the structure that can carry out two-way communication.
In driver's cabin 4, as shown in Figure 2, monitor 13 is set, show various information at this monitor 13, carry out mechanically operated operator and understand these information thereby can make.Therefore, even need during the operator carries out mechanically actuated, can see monitor 13, and in operation process, do not hinder field of front vision as far as possible yet.For this reason, monitor 13 has more small-sized picture, is configured in oblique the place ahead of driver's seat 6 in driver's cabin 4, for example is installed on column 7.
The information that is shown in monitor 13 comprises above-mentioned information, considers undesirable from easy opinion property etc. but it is shown to monitor 13 together.Therefore, constitute above-mentioned various information are divided in groups, set a plurality of display frame states, can switch demonstration as required.As display frame, comprise Fig. 3～4 states shown in Figure 6.
At first, show state example shown in Figure 3 illustrates as the shown content of vehicle condition information.They are whole but might not leave no choice but comprise as vehicle condition information content displayed, in addition, also can comprise the information beyond these information.In a word, as long as the present situation of the vehicle that the display operation person should be appreciated that.
The demonstration information that specifically illustrates among the figure, show the demonstration A1 that has burglar-proof mechanism whether to work successively from the left side of accompanying drawing as icon, whether the front end at the dipper 3b that constitutes anterior working rig 3 is equipped with scraper bowl 3c, or the demonstration A2 of other anterior fixture is not installed, the state of live load shows A3, the speed of travel shows A4, the demonstration A5 of auto idle speed whether, demonstration A6 about the bright lamp that has or not illuminating lamp, and having or not of the action of wiper shows A7, in addition, display part B running time is arranged side by side, show with numerical value running time with it.In addition, be the big zone of the middle body of monitor 13 at its hypomere, character (character) shows that engine coolant temperature shows that C1, working oil temperature show that C2 and fuel surplus show C3 abreast.In addition, the display part D1, the D2 that have battery allowance, engine oil pressure at hypomere, when the oil pressure of the charge volume of battery and engine oil keeps certain level, with the oil pressure ratio predeterminated level of the charge volume of battery and engine oil when low, carry out the variation of deep or light variation, tone etc., show state changes.
Fig. 4 illustrates the state that the video camera image shows.Shown in this figure is to show the situation that is monitored the image that the video camera 10 of usefulness obtains by the rear, only shows the landscape image at rear in the picture integral body of monitor 13, and out of Memory is not presented on the picture in principle.In addition, also use picture integral body to show in demonstration from the occasion of the image information of the video camera 11 of the image that obtains the excavation state.
In addition, Fig. 5 illustrates the picture of the state that shows reception information.This reception information is essentially the demonstration that utilizes message, and message shows order and the message that sends from related facility sides such as administrative centers.As the content of message, production plan and the information relevant with machinery such as operation place are arranged, pay no attention to its kind.Show the place as message, be the position of pattern displaying C1～C3 of Fig. 3, display message replaces these pattern displaying.In addition, in the occasion that can carry out two-way communication, also can be the transmission content that shows at this position from the operator.When the message that receives from administrative center etc., understand this state in order to make the operator, for example mark is set the lower right corner of Fig. 3 at the suitable position of monitor 13, this mark is flashed, or open window.
The state of display abnormality information shown in Figure 6.Abnormality is for if continue the generation of the state of affairs that action then becomes the reason of fault and accident under this state, as concrete state, the occasion of charging voltage below setting that battery is arranged, the occasion of the oil pressure of engine oil below setting, the occasion of engine cooling water more than the temperature of regulation, the occasion of working oil temperature abnormal ascending, and the occasion of the mesh of the strainer of being located at the air inlet side of engine filters obstruction etc.These states of affairs can be more according to the occasion that vehicle condition information detects, but great property in view of the state of affairs, in order to make the operator understand abnormality really and promptly, promptly carry out the position of pattern displaying C1～C3 of Fig. 3 at the picture central portion of monitor 13, display message replaces these pattern displaying boldly at aspects such as the size of character and colors.And, consider safety, preferably except the message demonstration of monitor 13, also side by side give the alarm to tens of seconds degree by the several seconds.Here, as abnormal information, have from its character and consider the information that must show and consider mechanical structures and information that the aspects such as situation of operation preferably show as abnormal information.That is, as abnormal information, have essential, set the inalterable information in back and information that might not be such in the early stage.Therefore, except inalterable essential abnormal information, can also have and suitably to set or to remove the variable information of setting in user's side as the unusual state of affairs.For example, the charging voltage of battery is reduced to below the setting value, the abnormal ascending of engine coolant temperature etc. is inalterable abnormal information.
The block diagram that Fig. 7 illustrates the control device of the demonstration control of carrying out monitor 13 constitutes.In control device 20, be provided with input control part 21, be taken into signal at this input control part 21, in addition, be taken into signal of video signal from video camera 10 (with video camera 11) from the sensor of being located at each one, in addition, also be taken into the received signal that is input to communicator 12.
The signal that sends from video camera 10 generates the signal of video signal that is shown in monitor 13 by signal of video signal handling part 22, is stored in video memory 23.In addition, by communicator 12 receive from the message stores of administrative center etc. in communication information memory 24.In addition, be input to control device 20 from various sensors all the time, these input signals are taken into signal conditioning circuit 25, detect the present state of each, will show that the needed data of vehicle condition information are written to memory 26.When the input signal from arbitrary sensor changes, detect variation by signal conditioning circuit 25, be reflected to memory 26.
In addition, on signal conditioning circuit 25, be connected with comparing section 27, in various sensors, and be input in the various data of signal conditioning circuit 25, selectively judging that the needed numeric data of abnormality is taken into this comparing section 27.Maintain the numeric data of the benchmark that becomes abnormality detection in comparing section 27, a reference value that will be taken into the numerical value of present situation of this comparing section 27 and setting from signal conditioning circuit 25 relatively judges whether the unusual state of affairs takes place.Therefore, comparing section 27 constitutes abnormal detector.
The action that constitutes each one of above-mentioned control device 20 is controlled by CPU29, therefore, be connected by bus between CPU29 and above-mentioned each one, in addition, in CPU29, have the record operation program etc. ROM and be used for carrying out the RAM that various signals are handled by the program that is recorded in this ROM.In addition, CPU29 and starter key 30 are started working linkedly.Therefore, when starter key 30 was opened, control device 20 became running status, became the state that shows predetermined information at monitor 13.In addition, one or more change-over switches 31 are set,, change the state of the display frame of monitor 13 by operating this change-over switch 31 in the position at the edge of monitor 13 (or driver's seat 6 around).
The present invention constitutes as described above, below about 2 embodiment of state description of the picture that is shown in monitor 13 according to the state of affairs.
(embodiment 1)
Fig. 8 illustrates the state that the picture of the monitor 13 of control device 20 shows.In the embodiment of this Fig. 8, at first show the video camera image information at monitor 13, particularly by the image of video camera 10 photographies that are used to obtain back visibibility.That is, when starter key 30 is opened, its signal is taken into CPU29, control device 20 becomes duty, and, the photography of beginning video camera 10.The image of the periphery that is obtained by this video camera 10 is input to signal of video signal handling part 22 from the input control part 21 of control device 20, carrying out predetermined picture handles, and, be stored in video memory 23, by output control part 28 the video camera image is outputed to monitor 13, show video camera image shown in Figure 4 at monitor 13.
Its result, the operator of operation hydraulic crawler excavator can understand the state condition at rear by the demonstration of this monitor 13.Operator's field of front vision can be confirmed by naked eyes, in addition, can confirm by watching monitor 13 with the back visibibility that common posture can not obtain, so, can hold the situation in the full week of cardinal principle of hydraulic crawler excavator.Therefore, the operator can be safely and is sequentially operated hydraulic crawler excavator.
Though show at monitor 13 image from video camera 10 also to be taken into control device 20, generate the data relevant shown in Figure 3 and change with vehicle condition information by signal conditioning circuit 25 even be located at the signal of the sensor of each one betwixt.In addition, the required data of abnormality detection that are input in each numeric data of signal conditioning circuit 25 are taken into comparing section 27, compare with the numeric data that becomes benchmark.For example, about the temperature of engine cooling water, the temperature of engine cooling water is often detected by temperature pick up, is input to signal conditioning circuit 25 about the data of temperature, when variations in temperature, is reflected in engine coolant temperature shown in Figure 3 and shows C1.And, should be taken into comparing section 27 about the data of temperature.Be set with the maximum temperature of engine cooling water in comparing section 27 as a reference value, when the measured value of the engine coolant temperature that is obtained by signal conditioning circuit 25 surpasses this a reference value, show abnormal information shown in Figure 6 by output control part 28.That is, the output of comparing section 27 becomes triggering, and is instantaneous and automatically switch to abnormality display frame from the display frame of video camera image on monitor 13.
That is, as can be seen from Figure 6, show the message of " overheated generation ".Meanwhile, about being used to eliminate the method for abnormality, for example show such suggestions such as " please make motor become idling mode " in the lump.By making motor like this is idling mode (or shutting engine down), can eliminate the overload state of motor, and the temperature of cooling water is descended.When the temperature of engine cooling water was hanged down than a reference value of setting, it became triggering, automatically switches to the display frame of video camera image from this abnormality display frame.Like this, engine overheat can positively be avoided and the state of affairs such as break down.
In addition, as the temperature anomaly ground rising of working oil, then its viscosity descends, and has the danger such as sealing leak that hydraulic circuit takes place, and with above-mentioned same, monitor 13 automatically switches to abnormality display frame from the display frame of video camera image.The message that shows when certainly, unusual is used to make the operator to understand working oil temperature this state that rises.In addition, even when other abnormality takes place, also can with from the output signal of comparing section 27 as triggering, automatically carry out the switching of the picture of monitor 13 by same program.
In the situation that abnormality has taken place, exist the operator to carry out certain operation and can eliminate the situation and the indelible situation of this unusual state.In the eliminable occasion of abnormality, can show the suggestion of the program of eliminating about it with message.On the other hand, the such abnormality that exists the operator in driver's cabin 4, not eliminate, for example such needs such as the mesh obstruction of engine filters clean even change the situation of strainer, but in this case, become " engine filters mesh stop up take place " so unusual state of affairs content and " please move to home; change strainer " such suggestion, show suggestion that " please getting in touch with the maintenance personal " is such etc. with message in the lump.
Here, the demonstration of abnormality can by demonstrations such as sign replace message to show or with mixing such as message and sign show etc., in a word, as long as can make the operator rapider and positively understand abnormality.In addition, the program etc. of eliminating abnormality preferably also makes operator's demonstration easily with understanding.In addition, more positively understand the generation of abnormality, preferably also and with the generation of alarm song etc. in order to make the operator.
On monitor 13, only otherwise above-mentioned abnormality takes place, then show the video camera image.Yet, depend on the situation about moving of some job content and hydraulic crawler excavator etc., do not need to obtain back visibibility sometimes.In this occasion, monitor 13 can be switched to the vehicle condition display frame of Fig. 3.The switching of this picture is by carrying out the operation of change-over switch 31 as triggering, the operator can be at any time carries out switching between display frame of video camera image and vehicle condition display frame with manual operation.In addition, even under the state that shows vehicle condition display frame, when becoming abnormality, also automatically switch to abnormality display frame.
Can also display communication information on monitor 13, promptly by operator's manual operation, become the condition of information that demonstration sends from administrative center etc. from the operation of video camera image display frame by change-over switch 31.Therefore, the operator can receive order and other message such as operation procedure of sending here from administrative center etc. at any time.Certainly, during showing this communication information, as the unusual state of affairs taking place, then directly automatically switches to abnormality display frame.After the operator understands the communication information,, and switch to the display frame of video camera image by operation change-over switch 31.
In addition, forwardly the dipper 3b of working rig 3 also is provided with the occasion of video camera 11, also is that the switching by change-over switch 31 switches to the state of demonstration from the image of this video camera 11 with monitor 13.
(embodiment 2)
Fig. 9 illustrates other state of the picture demonstration of the monitor 13 that is produced by control device 20.In the embodiment of this Fig. 9, on monitor 13, at first preferentially show vehicle condition.Then, when operation during change-over switch 31, monitor 13 switches to the state of demonstration by the video camera image of video camera 10 photographies that are used to obtain back visibibility.In addition, in the occasion that obtains the communication information, also be by operation change-over switch 31 image switchings.On the other hand, when abnormality takes place, similarly to Example 1, automatically switch to abnormality display frame as triggering with output signal from comparing section 27.
Claims (6)
1. the display unit of a construction machinery, described construction machinery has motor, by this engine-driven hydraulic pump and a plurality of Actuator Divisions of driving by the pressure oil of supplying with from this hydraulic pump, at least the sensor that detects surplus, engine coolant temperature and the working oil temperature of the fuel that supplies to above-mentioned motor is set, according to the unusual abnormal detector of the signal detection duty of these each sensors, and the video camera that monitors periphery; It is characterized in that:
The vehicle condition information optionally show from least 1 sensor output of above-mentioned each sensor is set in the driver's cabin of above-mentioned construction machinery, from the abnormal information of above-mentioned abnormal detector output with from the monitor of the video camera image information of above-mentioned video camera output;
Be connected with control device on this monitor, this control device comprises manual switching device and automatic switching control equipment; Described manual switching device switches feasible any one that shows in above-mentioned vehicle condition information and the video camera image information; Described automatic switching control equipment automatically switches the display abnormality information that makes at least from above-mentioned abnormal detector output abnormality information the time.
2. the display unit of construction machinery according to claim 1, it is characterized in that: also be provided with the communicator that receives message from related facility on above-mentioned construction machinery, available above-mentioned manual switching device switches to the communication information message that is received by this communicator in above-mentioned monitor demonstration from above-mentioned vehicle condition information or video camera image information.
3. the display unit of construction machinery according to claim 2, it is characterized in that: above-mentioned control device makes that often carrying out the video camera image as reference pictures on above-mentioned monitor shows, switches to picture that shows above-mentioned vehicle condition information or the picture that shows reception information by above-mentioned manual switching device.
4. the display unit of construction machinery according to claim 2, it is characterized in that: above-mentioned control device makes and often show above-mentioned vehicle condition information as reference pictures on above-mentioned monitor, shows the picture of above-mentioned video camera image and shows that the picture of reception information can switch demonstration by above-mentioned manual switching device.
5. the display unit of construction machinery according to claim 1 and 2, it is characterized in that: in above-mentioned construction machinery, at least be in setting when following when the charging voltage of battery, or engine cooling water or working oil temperature be in set point of temperature when above, is presented on the above-mentioned monitor as above-mentioned abnormal information.
6. the display unit of construction machinery according to claim 5 is characterized in that: above-mentioned abnormal information is set with comprising initial property, inalterable information and the variable information that can append and delete, and described variable information is set and cancellation by input unit.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP345600/2003 | 2003-10-03 | ||
| JP2003345600A JP2005113397A (en) | 2003-10-03 | 2003-10-03 | Display device of construction machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1603528A true CN1603528A (en) | 2005-04-06 |
| CN1603528B CN1603528B (en) | 2010-05-05 |
Family
ID=34538821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2004100807055A Expired - Lifetime CN1603528B (en) | 2003-10-03 | 2004-10-08 | Display apparatus of construction machinery |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2005113397A (en) |
| KR (1) | KR20050033457A (en) |
| CN (1) | CN1603528B (en) |
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| Publication number | Publication date |
|---|---|
| CN1603528B (en) | 2010-05-05 |
| KR20050033457A (en) | 2005-04-12 |
| JP2005113397A (en) | 2005-04-28 |
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