CN102928732B - Line diagnosis instrument and line diagnosis method - Google Patents
Line diagnosis instrument and line diagnosis method Download PDFInfo
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- CN102928732B CN102928732B CN201210447373.4A CN201210447373A CN102928732B CN 102928732 B CN102928732 B CN 102928732B CN 201210447373 A CN201210447373 A CN 201210447373A CN 102928732 B CN102928732 B CN 102928732B
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Abstract
The invention provides a kind of line diagnosis instrument, for the line diagnosis of engineering machinery, described line diagnosis instrument comprises: storage unit, for storing the line arrangement information of at least one engineering machinery; Reading unit, from described storage unit, read line arrangement information corresponding to current engineering machinery to be detected according to the input instruction of operator, and in the line arrangement information of described current engineering machinery to be detected, select the information of current wire harness to be detected according to the input instruction of operator; Detecting unit, the information according to described current wire harness to be detected detects described current wire harness to be detected and obtains testing result; Display unit, generates diagnostic result for resolving described testing result, and shows described diagnostic result.By the present invention, can realize carrying out diagnosing fast, efficiently to engineering machinery wire harness fault at the construction field (site).Present invention also offers a kind of line diagnosis method.
Description
Technical field
The present invention relates to line diagnosis technical field, in particular to a kind of line diagnosis instrument and a kind of line diagnosis method.
Background technology
Engineering machinery, each electric components of its electrical system is arranged in the car load whole body everywhere, and these parts are connected with center-control parts by wire harness, and form a complete electrical system, its wire harness is huge and complicated.But engineering machinery working environment may be quite severe, causes all kinds of wire harness fault again and again to occur, significantly reduce operating efficiency.Existing Circuit fault diagnosis is mostly judged by operating personnel's experience, and diagnosis speed is slow, accuracy is low, cannot meet the efficient construction requirement of engineering machinery.Especially more outstanding in the performance of this problem of concrete mixer.
Therefore, how can realize the rapidly and efficiently diagnosis of working-yard engineering machinery wire harness fault, be the technical matters that those skilled in the art need solution badly.
Summary of the invention
Technical matters to be solved by this invention is, provides a kind of line diagnosis instrument, can realize the rapidly and efficiently diagnosis of working-yard engineering machinery wire harness fault.
In view of this, the invention provides a kind of line diagnosis instrument, for the line diagnosis of engineering machinery, described line diagnosis instrument comprises: storage unit, for storing the line arrangement information of at least one engineering machinery; Reading unit, from described storage unit, read line arrangement information corresponding to current engineering machinery to be detected according to the input instruction of operator, and in the line arrangement information of described current engineering machinery to be detected, select the information of current wire harness to be detected according to the input instruction of operator; Detecting unit, the information according to described current wire harness to be detected detects described current wire harness to be detected and obtains testing result; Display unit, generates diagnostic result for resolving described testing result, and shows described diagnostic result.
In this technical scheme, the line arrangement information of engineering machinery is stored in line diagnosis instrument, when needs carry out line diagnosis to engineering machinery, the current deployment scenarios treating diagnostics lines road can be learnt according to the information stored in line diagnosis instrument, thus this section of circuit is detected, then resolved detection result obtains diagnostic result and shows; Adopt the line diagnosis instrument in this technical scheme, can realize detecting the segmentation of the circuit of engineering machinery, by detecting every section of circuit successively, only need select corresponding line information in the memory unit can detect for the concrete condition of line arrangement, thus concrete fault wire section can be detected, pass through technician's micro-judgment fault relative in correlation technique, effectively improve the accuracy of fault detect, improve the efficiency of fault detect.
Preferably, the detection of described detecting unit to described wire harness to be detected comprises at least one detected in following malfunction: open lines, shorted to earth, to short circuit between power supply short circuit and circuit.In this technical scheme, the measuring ability of four kinds of faults can be integrated in the line diagnosis instrument in the present invention, the detection of four kinds of faults can be realized by a line diagnosis instrument, improve fault detection efficiency.
Preferably, described display unit is also for showing line arrangement information corresponding to described current engineering machinery to be detected, described current wire harness information to be detected.In this technical scheme, by by line arrangement information and current wire harness information displaying to be detected out, make operator more intuitively can arrive the line arrangement situation of current engineering machinery and wire harness deployment scenarios to be detected, more directly perceived, vivid, and testing result shown operator can be made to obtain testing result more easily, handled easily personnel judge failure message.
Preferably, described failure code also for generating failure code according to the detection of described wire harness to be detected, and is transported to described display unit by described detecting unit; And described display unit is also for resolving to generate corresponding diagnostic result to described failure code.In this technical scheme, different failure codes can be pre-set be associated with the different faults state of wire harness to be detected, detecting unit can generate corresponding failure code according to the malfunction detected, then failure code is transferred to display unit, display unit resolves the failure code that receives again to generate diagnostic result and to show, thus further facilitates operating personnel and check failure message and judge.
Preferably, described line diagnosis instrument also comprises: selection unit, automatically detects for selecting to treat detection wire harness according to the input instruction of operator or manually detects; And described detecting unit detects automatically one by one to the every bar circuit in described wire harness to be detected when selecting automatically to detect, when selecting manually to detect, described detecting unit only detects the circuit that operator selects in described wire harness to be detected.In this technical scheme, line diagnosis instrument is supported automatic diagnosis and is manually diagnosed two kinds of diagnostic modes, and operating personnel can select diagnostic mode according to actual needs neatly.
Preferably, described line diagnosis instrument also comprises electric battery, for providing electric energy for described line diagnosis instrument; Or described line diagnosis instrument is connected to the battery pack of described engineering machinery to be detected, by described battery pack for described line diagnosis instrument provides electric energy.In this technical scheme, line diagnosis instrument can carry electric battery, and the battery pack that also can be connected to engineering machinery to be detected obtains electric energy, and the battery pack that such as can be connected to car load by V DC power plug is powered.
Preferably, described line diagnosis instrument is used for the line diagnosis of concrete mixer, and described reading unit is determined the line arrangement information that described pump truck to be detected is corresponding specifically for the chassis version of: the pump truck to be detected selected according to operator, exchange system type and jib type and reads.In this technical scheme, the line arrangement mode in pump truck uniquely can be determined by the chassis version of pump truck to be detected, exchange system type and jib type three parameters, then can obtain the concrete condition of circuit to be detected according to the line arrangement information stored in storage unit, thus treat detection line and detect.
Present invention also offers a kind of line diagnosis method, for the line diagnosis of engineering machinery, described line diagnosis method comprises: the line arrangement information storing at least one engineering machinery; According to the input instruction of operator, read the line arrangement information that current engineering machinery to be detected is corresponding, and in the line arrangement information of described current engineering machinery to be detected, select the information of current wire harness to be detected according to the input instruction of operator; Information according to described current wire harness to be detected detects to obtain testing result to described current wire harness to be detected, resolves described testing result and generates diagnostic result, and show described diagnostic result.In this technical scheme, the line arrangement information of engineering machinery is stored, when needs carry out line diagnosis to engineering machinery, information according to storing can learn the current deployment scenarios treating diagnostics lines road, thus this section of circuit is detected, then resolved detection result obtains diagnostic result and shows; Adopt the line diagnosis method in this technical scheme, can realize detecting the segmentation of the circuit of engineering machinery, by detecting every section of circuit successively, only need select corresponding line information can detect for the concrete condition of line arrangement, thus concrete fault wire section can be detected, pass through technician's micro-judgment fault relative in correlation technique, effectively improve the accuracy of fault detect, improve the efficiency of fault detect.
Preferably, at least one detected in following malfunction is comprised to the detection of described wire harness to be detected: open lines, shorted to earth, to short circuit between power supply short circuit and circuit.In this technical scheme, the measuring ability of four kinds of faults is integrated in the line diagnosis instrument in the present invention, the detection of four kinds of faults can be realized, improve fault detection efficiency.
Preferably, described line diagnosis method also comprises: show line arrangement information corresponding to described current engineering machinery to be detected, described current wire harness to be detected.In this technical scheme, by by line arrangement information and current wire harness information displaying to be detected out, make operator more intuitively can arrive the line arrangement situation of current engineering machinery and wire harness deployment scenarios to be detected, more directly perceived, vivid, and testing result shown operator can be made to obtain testing result more easily, handled easily personnel judge failure message.
In sum, by the present invention, the line arrangement information of engineering machinery is stored in line diagnosis instrument, when needs carry out line diagnosis to engineering machinery, the current deployment scenarios treating diagnostics lines road can be learnt according to the information stored in line diagnosis instrument, thus this section of circuit is detected; Adopt the line diagnosis instrument in this technical scheme, can realize detecting the segmentation of the circuit of engineering machinery, by detecting every section of circuit successively, only need select corresponding line information can detect for the concrete condition of line arrangement, thus concrete fault wire section can be detected, pass through technician's micro-judgment fault relative in correlation technique, effectively improve the accuracy of fault detect, improve the efficiency of fault detect; And can to open lines, shorted to earth, detect the four kinds of faults of short circuit between power supply short circuit and circuit, easy to use.
Accompanying drawing explanation
Fig. 1 shows the block diagram of line diagnosis instrument according to an embodiment of the invention;
Fig. 2 shows the structural drawing of line diagnosis instrument according to an embodiment of the invention;
Fig. 3 shows the process flow diagram of line diagnosis method according to an embodiment of the invention.
Embodiment
In order to more clearly understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail.
Set forth a lot of detail in the following description so that fully understand the present invention; but; the present invention can also adopt other to be different from other modes described here and implement, and therefore, protection scope of the present invention is not by the restriction of following public specific embodiment.
Below in conjunction with drawings and Examples, the present invention will be further described.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
As shown in Figure 1, the line diagnosis instrument 100 in the present invention, for the line diagnosis of engineering machinery, this line diagnosis instrument 100 comprises: storage unit 102, for storing the line arrangement information of at least one engineering machinery; Reading unit 104, from storage unit 102, read line arrangement information corresponding to current engineering machinery to be detected according to the input instruction of operator, and in the line arrangement information of current engineering machinery to be detected, select the information of current wire harness to be detected according to the input instruction of operator; Detecting unit 106, the information according to current wire harness to be detected detects current wire harness to be detected and obtains testing result; Display unit 110, generates diagnostic result for resolved detection result, and shows diagnostic result.
The line arrangement information of engineering machinery is stored in line diagnosis instrument 100, when needs carry out line diagnosis to engineering machinery, information according to storing in line diagnosis instrument 100 can learn the current deployment scenarios treating diagnostics lines road, thus this section of circuit is detected, then resolved detection result obtains diagnostic result and shows; Adopt the line diagnosis instrument 100 in this technical scheme, can realize detecting the segmentation of the circuit of engineering machinery, by detecting every section of circuit successively, only need select corresponding line information in storage unit 102 can detect for the concrete condition of line arrangement, thus concrete fault wire section can be detected, pass through technician's micro-judgment fault relative in correlation technique, effectively improve the accuracy of fault detect, improve the efficiency of fault detect.
Preferably, detecting unit 106 is treated and is detected the detection of wire harness and comprise at least one detected in following malfunction: open lines, shorted to earth, to short circuit between power supply short circuit and circuit.In this technical scheme, the measuring ability of four kinds of faults can be integrated in the line diagnosis instrument 100 in the present invention, the detection of four kinds of faults can be realized by a line diagnosis instrument 100, improve fault detection efficiency.Wherein, be how specifically existing knowledge in correlation technique to certain fault detect, do not repeat them here.
Preferably, display unit 110 is also for showing line arrangement information corresponding to current engineering machinery to be detected, current wire harness information to be detected.By by line arrangement information and current wire harness information displaying to be detected out, make operator more intuitively can arrive the line arrangement situation of current engineering machinery and wire harness deployment scenarios to be detected, more directly perceived, vivid, and testing result shown operator can be made to obtain testing result more easily, handled easily personnel judge failure message.
Preferably, failure code also for generating failure code according to treating the detection detecting wire harness, and is transported to display unit 110 by detecting unit 106; And display unit 110 also generates corresponding diagnostic result for resolving failure code.Different failure codes can be pre-set be associated with the different faults state of wire harness to be detected, detecting unit 106 can generate corresponding failure code according to the malfunction detected, then failure code is transferred to display unit 110, display unit 110 resolves the failure code that receives again to generate diagnostic result, thus further facilitates operating personnel and check failure message and judge.
The failure code of the open lines such as pre-set is K500, so when detecting unit 106 detects the open lines of wire harness to be detected, then generate failure code K500 and this failure code is transferred to display unit 110, display unit is resolved " K500 ", obtain the open lines that diagnostic result is wire harness to be detected, then show the open lines of wire harness to be detected.
Preferably, line diagnosis instrument 100 also comprises: selection unit 112, automatically detects for selecting to treat detection wire harness according to the input instruction of operator or manually detects; And every bar circuit that detecting unit 106 treats detection line intrafascicular when selecting automatically to detect detects automatically one by one, when selecting manually to detect, detecting unit 106 only detects the circuit that operator selects in wire harness to be detected.Line diagnosis instrument 100 is supported automatic diagnosis and is manually diagnosed two kinds of diagnostic modes, and operating personnel can select diagnostic mode according to actual needs neatly.
Such as when operating personnel do not connect completely to failure message, the mode of automatic diagnosis can be adopted, be diagnosed successively by the circuit in detecting unit 106 pairs of wire harness; When operating personnel have judgement to a certain degree to failure message, can select the mode of manually diagnosis, the circuit broken down for most probable is diagnosed.By selecting automatic diagnosis neatly or manually diagnosing, diagnosis efficiency can be made to maximize.
Preferably, line diagnosis instrument 100 also comprises electric battery 114, for providing electric energy for line diagnosis instrument 100; Or line diagnosis instrument 100 is connected to the battery pack of engineering machinery to be detected, by battery pack for line diagnosis instrument 100 provides electric energy.Line diagnosis instrument 100 can carry electric battery 114, and the battery pack that also can be connected to engineering machinery to be detected obtains electric energy, and the battery pack that such as can be connected to car load by 24V DC power plug is powered.
In a kind of embodiment, line diagnosis instrument 100 may be used for the line diagnosis of concrete mixer, now reading unit 104 specifically for: determine the line arrangement information that pump truck to be detected is corresponding according to the chassis version of pump truck to be detected, exchange system type and jib type that operator selects and read.The line arrangement mode in pump truck uniquely can be determined by the chassis version of pump truck to be detected, exchange system type and jib type three parameters, then can obtain the concrete condition of circuit to be detected according to the line arrangement information stored in storage unit 102, thus treat detection line and detect.
Diagnostic equipment provided by the present invention, its display screen is accompanied with keyboard and all kinds of pump truck clustered data storehouse, arrange relevant parameter by keyboard to call relation line beam data storehouse and select wire harness to be measured, and select type of detection (automatically detect or manually detect), then selection result and correlation parameter are passed to controller by CAN.Controller I/O port patches wire harness by counterpart and connects circuit to be checked.When receiving sense command and the parameter of display screen, calling corresponding detection algorithm and detecting, and testing result is passed to display screen display by CAN.This diagnostic equipment can be that node carries out segmentation detection to circuit with connector, detect open lines, shorted to earth, to short trouble state between power supply short circuit, circuit, diagnosis speed is fast, accuracy rate of diagnosis is high, in the middle of the Circuit fault diagnosis that can be effectively applied to engineering machinery.
Fig. 2 shows the structural drawing of line diagnosis instrument according to an embodiment of the invention.
As shown in Figure 2, line diagnosis instrument 100 as shown in Figure 1 comprises controller 204, display screen 202, counterpart patch wire harness, 24V DC power plug, its middle controller 204 carries out exchanges data with display screen by CAN, controller 204 patches wire harness with wire harness to be checked by counterpart and docks, and diagnostic equipment extracts required work electricity consumption by 24V DC power plug from car load.
Use it for the fault diagnosis of pump truck, concrete implementation step is:
(1) diagnostic equipment 24V DC power plug connects car load power supply, and controller 204 enters holding state, and display screen 202 enters initial parameter and arranges the page;
(2) diagnostic equipment diagnostic port is patched wire harness by counterpart to be connected with wire harness to be checked, page prompts is set according to display screen 202 initial parameter pump truck chassis to be checked, exchange system, arm support shape parameter are set;
(3) the route choosing page entering display screen 202 selects the wire bundle plug-in connector corresponding with wire harness to be checked, returns homepage and select detection mode (automatically detect/manually detect) after chosen successfully;
(4) controller 204 calls the detection of corresponding trace routine after receiving display screen 202 correlation parameter, and fault number is sent to display screen 202;
(5) display screen 202 resolve fault number show fault diagnosis result.
In the present embodiment, can using the detecting unit 106 in Fig. 1 as controller 204, the accumulator on power acquisition pump truck, remaining part is all integrated in display 202, but obviously also by other component integration outside display unit 110 in controller 204, can repeat no more.
Line diagnosis instrument in the present invention can store various engineering machinery and store line arrangement information corresponding to the different model of often kind of engineering machinery, thus go for different engineering machinery, only the line arrangement information in corresponding engineering machinery need be stored in line diagnosis instrument, can realize, to the diagnosis of various different engineering machinery, using applied widely.
Present invention also offers a kind of line diagnosis method, for the line diagnosis of engineering machinery, line diagnosis method comprises: the line arrangement information storing at least one engineering machinery; According to the input instruction of operator, read the line arrangement information that current engineering machinery to be detected is corresponding, and in the line arrangement information of current engineering machinery to be detected, select the information of current wire harness to be detected according to the input instruction of operator; Information according to current wire harness to be detected detects current wire harness to be detected, and shows testing result.
The line arrangement information of engineering machinery stored, when needs carry out line diagnosis to engineering machinery, the information according to storing can learn the current deployment scenarios treating diagnostics lines road, thus detects this section of circuit and testing result shown; Adopt the line diagnosis method in this technical scheme, can realize detecting the segmentation of the circuit of engineering machinery, by detecting every section of circuit successively, only need select corresponding line information can detect for the concrete condition of line arrangement, thus concrete fault wire section can be detected, pass through technician's micro-judgment fault relative in correlation technique, effectively improve the accuracy of fault detect, improve the efficiency of fault detect.
Preferably, treat and detect the detection of wire harness and comprise at least one detected in following malfunction: open lines, shorted to earth, to short circuit between power supply short circuit and circuit.The measuring ability of four kinds of faults is integrated in the line diagnosis instrument in the present invention, the detection of four kinds of faults can be realized, improve fault detection efficiency.Wherein, be how specifically existing knowledge in correlation technique to certain fault detect, do not repeat them here.
Preferably, line diagnosis method also comprises: show line arrangement information corresponding to current engineering machinery to be detected, current wire harness to be detected.By by line arrangement information and current wire harness information displaying to be detected out, make operator more intuitively can arrive the line arrangement situation of current engineering machinery and wire harness deployment scenarios to be detected, more directly perceived, vivid, and testing result shown operator can be made to obtain testing result more easily, handled easily personnel judge failure message.
Fig. 3 shows the process flow diagram of line diagnosis method according to an embodiment of the invention.
As shown in Figure 3, line diagnosis method comprises according to an embodiment of the invention:
Step 302, line diagnosis instrument as shown in Figure 1 patches wire harness by counterpart and sends a high level to a certain Wiring port of wire harness one end to be detected;
Step 304, judges whether can receive corresponding signal at the corresponding ports of this wire harness other end to be detected;
Step 306, if cannot receive signal at the corresponding ports of this wire harness other end to be detected, judges the open lines detected;
Step 308, if can receive signal at the corresponding ports of this wire harness other end to be detected, then judges the level of the signal received further;
Step 310, if receive low level signal at the corresponding ports of this wire harness other end to be detected, then judges the line-to-ground short circuit detected;
Step 312, if receive high level signal at the corresponding ports of this wire harness other end to be detected, then judges that the circuit detected is to power supply short circuit;
Step 314, if all receive high level signal at the corresponding ports of this wire harness other end to be detected and non-corresponding port, then judges short circuit between the circuit that detecting;
(wire harness has some circuits, and the corresponding port of each wire harness, needs during detection to detect the port of each wiring of wire harness)
Step 316, generates corresponding diagnostic result according to different Received signal strength and shows.
In sum, by the present invention, the line arrangement information of engineering machinery is stored in line diagnosis instrument, when needs carry out line diagnosis to engineering machinery, the current deployment scenarios treating diagnostics lines road can be learnt according to the information stored in line diagnosis instrument, thus this section of circuit is detected; Adopt the line diagnosis instrument in this technical scheme, can realize detecting the segmentation of the circuit of engineering machinery, by detecting every section of circuit successively, only need select corresponding line information can detect for the concrete condition of line arrangement, thus concrete fault wire section can be detected, pass through technician's micro-judgment fault relative in correlation technique, effectively improve the accuracy of fault detect, improve the efficiency of fault detect; And can to open lines, shorted to earth, detect the four kinds of faults of short circuit between power supply short circuit and circuit, easy to use.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a line diagnosis instrument (100), for the line diagnosis of engineering machinery, is characterized in that, comprising:
Storage unit (102), for storing the line arrangement information of at least one engineering machinery;
Reading unit (104), line arrangement information corresponding to current engineering machinery to be detected is read in input instruction according to operator from described storage unit (102), and in the line arrangement information of described current engineering machinery to be detected, selects the information of current wire harness to be detected according to the input instruction of operator;
Detecting unit (106), the information according to described current wire harness to be detected detects described current wire harness to be detected and obtains testing result;
Display unit (110), generates diagnostic result for resolving described testing result, and shows described diagnostic result;
Wherein, described line diagnosis instrument (100) for the line diagnosis of concrete mixer, and described reading unit (104) specifically for:
Determine the line arrangement information that described pump truck to be detected is corresponding according to the chassis version of pump truck to be detected, exchange system type and jib type that operator selects and read.
2. line diagnosis instrument (100) according to claim 1, is characterized in that, the detection of described detecting unit (106) to described wire harness to be detected comprises at least one detected in following malfunction:
Open lines, shorted to earth, to short circuit between power supply short circuit and circuit.
3. line diagnosis instrument (100) according to claim 1, it is characterized in that, described display unit (110) is also for showing line arrangement information corresponding to described current engineering machinery to be detected, described current wire harness information to be detected.
4. line diagnosis instrument (100) according to claim 1, is characterized in that:
Described failure code also for generating failure code according to the detection of described wire harness to be detected, and is transferred to described display unit (110) by described detecting unit (106); And
Described display unit (110) is also for resolving to generate corresponding diagnostic result to described failure code.
5. line diagnosis instrument (100) according to claim 1, is characterized in that, also comprise:
Selection unit (112), automatically detects for selecting to treat detection wire harness according to the input instruction of operator or manually detects; And,
When selecting automatically to detect, described detecting unit (106) detects automatically one by one to the every bar circuit in described wire harness to be detected, and when selecting manually to detect, described detecting unit (106) only detects the circuit that operator selects in described wire harness to be detected.
6. line diagnosis instrument (100) according to claim 1, is characterized in that:
Described line diagnosis instrument (100) also comprises electric battery (114), for providing electric energy for described line diagnosis instrument (100); Or,
Described line diagnosis instrument (100) is connected to the battery pack of described engineering machinery to be detected, is that described line diagnosis instrument (100) provides electric energy by described battery pack.
7. a line diagnosis method, for the line diagnosis of engineering machinery, is characterized in that, comprising:
Store the line arrangement information of at least one engineering machinery;
According to the input instruction of operator, read the line arrangement information that current engineering machinery to be detected is corresponding, and in the line arrangement information of described current engineering machinery to be detected, select the information of current wire harness to be detected according to the input instruction of operator;
Information according to described current wire harness to be detected detects to obtain testing result to described current wire harness to be detected, resolves described testing result and generates diagnostic result, and show described diagnostic result;
Wherein, described line diagnosis method also comprises:
Determine the line arrangement information that described pump truck to be detected is corresponding according to the chassis version of pump truck to be detected, exchange system type and jib type that operator selects and read.
8. line diagnosis method according to claim 7, is characterized in that, the detection of described wire harness to be detected is comprised at least one detected in following malfunction:
Open lines, shorted to earth, to short circuit between power supply short circuit and circuit.
9. the line diagnosis method according to claim 7 or 8, is characterized in that, also comprise: show line arrangement information corresponding to described current engineering machinery to be detected, described current wire harness to be detected.
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| CN103399250A (en) * | 2013-07-30 | 2013-11-20 | 重庆长安汽车股份有限公司 | Method and system for diagnosing open-circuit fault of digital circuit |
| CN105652141B (en) * | 2016-03-14 | 2018-06-05 | 湖南工业大学 | Locomotive top climbing high pressure alarm self-diagnosable system |
| CN106154098A (en) * | 2016-06-16 | 2016-11-23 | 徐州重型机械有限公司 | Method for diagnosing faults, device, system and engineering machinery |
| CN111123161B (en) * | 2019-12-30 | 2022-04-29 | 潍柴动力股份有限公司 | Wire harness electrical fault detection method and device and controller |
| CN113804993A (en) * | 2021-07-30 | 2021-12-17 | 中联重科股份有限公司 | Method for fault location, processor and engineering machinery |
| CN117232586B (en) * | 2023-11-15 | 2024-01-09 | 长春易加科技有限公司 | Intelligent wire harness detection system |
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