CN103424264A - Tractor cab testing system - Google Patents
Tractor cab testing system Download PDFInfo
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- CN103424264A CN103424264A CN2012101509113A CN201210150911A CN103424264A CN 103424264 A CN103424264 A CN 103424264A CN 2012101509113 A CN2012101509113 A CN 2012101509113A CN 201210150911 A CN201210150911 A CN 201210150911A CN 103424264 A CN103424264 A CN 103424264A
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Abstract
The invention discloses a tractor cab testing system. The tractor cab testing system comprises an industrial personal computer, a programmable logic controller (PLC), a through-connection machine frame composed of an external control connector and a water temperature/oil pressure connector, a photoelectric coupler, a network resistor circuit, a self-inspection circuit including a plurality of connectors, a programmable power supply and a switching power supply, wherein the switching power supply is connected with the PLC and the self-inspection circuit, the programmable power supply is connected with a tractor cab, the self-inspection circuit and the industrial personal computer, and the industrial personal computer is connected with the PLC and the through-connection machine frame. The connectors in the through-connection machine frame are in butt joint with detection connectors of the tractor cab or the connectors of the self-inspection circuit. The input end of the PLC is connected with an external input signal connector through the photoelectric coupler, the first output end is connected with the external control connector, and the second output end is connected with the water temperature/oil pressure connector through the network resistor circuit. The tractor cab testing system achieves comprehensive parameter testing of the tractor cab and system self-inspection.
Description
Technical field
The present invention relates to a kind of tractor driving cabin test macro, specifically, relate to a kind of system that tractor driving cabin comprehensive parameters is tested.
Background technology
Along with social development, the performance of modern tractor is gradually improved, the information that the expansion of various functions makes tractor driving cabin instrument display interface to present is more and more diversified, for the security of operation, serviceable life and the driver's that guarantee modern tractor handiness, must keep desirable comprehensive parameters.Therefore, the test of tractor comprehensive parameters is just seemed to particularly important, during detection, if deal with improperly, may cause danger, injury or slight wound and equipment breakdown etc. as moderate as the person.And a kind of effective system that tractor especially TL type or TS type tractor (two kinds of universal models in tractor) comprehensive parameters are tested of being convenient to is not also arranged in prior art, still there is inconvenience in test process.
Summary of the invention
The object of the present invention is to provide a kind of tractor driving cabin test macro, existing tractor driving cabin comprehensive parameters is effectively tested, facilitated tester's work, saved manpower.And can carry out self check to system self, further guarantee the accuracy of test.
The technical scheme that realizes above-mentioned purpose is:
A kind of tractor driving cabin test macro, described tractor driving cabin carries some detection tabs, this test macro comprises industrial computer, PLC(Programmable Logic Controller, programmable logic controller (PLC)), the switching frame that formed by external input signal joint, external control joint and water temperature/Oil-pressure joint, photoelectrical coupler, network resistor circuit, containing self-checking circuit, programmable power supply and the Switching Power Supply of some joints, wherein:
Switching Power Supply, connect described PLC and self-checking circuit;
Programmable power supply, connect described tractor driving cabin, self-checking circuit and industrial computer, gives the power supply of described tractor driving cabin and the working current in this tractor driving cabin is offered to described industrial computer;
Industrial computer, comprise the waveform card that contains frequency measurement mouth and waveform delivery outlet, and this industrial computer connects described PLC, and connect described switching frame by described waveform delivery outlet;
The switching frame, each joint in it docks respectively each detection tabs in corresponding described tractor driving cabin, or docks each joint of corresponding described self-checking circuit;
PLC, its input end connects described external input signal joint by described photoelectrical coupler, and its first output terminal directly connects described external control joint, and its second output terminal connects described water temperature/Oil-pressure joint by described network resistor circuit.
Above-mentioned tractor driving cabin test macro, wherein, described self-checking circuit comprises self check joint group, relay group and the feedback joint group of joining successively, wherein:
Described self check joint group comprises some self check joints, and this self check joint group connects described external control joint and water temperature/Oil-pressure joint;
Described feedback joint group comprises some feedback joints, and this feedback joint group connects described external input signal joint;
Described relay group comprises some relays, and each relay receives the output of described PLC by each self check joint of correspondence, realize adhesive or the disconnection of each relay contact, and the joint that respectively feeds back by correspondence completes the mapping to described PLC input.
Above-mentioned tractor driving cabin test macro, wherein, described network resistor circuit comprises bang-bang circuit, the first electric resistance output circuit and the second electric resistance output circuit, wherein:
Described bang-bang circuit comprises the control port on 18 tunnels, and this control port De Mei road connects a relay, each relay series arm in parallel, and each series arm is in series by pilot lamp and current-limiting resistance;
18 relays in described bang-bang circuit are divided into two groups, and the contact separately of every group of 9 relays is connected in series successively;
Described the first electric resistance output circuit is identical with the structure of the second electric resistance output circuit, includes described 9 relay contacts of serial connection successively, and 8 contacts wherein respectively separately and connect a resistance.
Above-mentioned tractor driving cabin test macro, wherein, described test macro also comprises the manually-operated handle that connects described PLC.
Above-mentioned tractor driving cabin test macro, wherein, described test macro also comprises display, printer and the scanner that connects respectively described industrial computer.
Above-mentioned tractor driving cabin test macro, wherein, described programmable power supply connects described industrial computer by the USB communication modes.
Above-mentioned tractor driving cabin test macro, wherein, described industrial computer connects described PLC by the RS232 mode.
The invention has the beneficial effects as follows: the present invention adopts and can effectively test existing tractor driving cabin comprehensive parameters, has facilitated tester's work, has saved manpower, has good detection effect.Simultaneously, the present invention can carry out self check to system self, on the no problem basis of test macro itself, the comprehensive parameters in tractor driving cabin is effectively tested guaranteeing, thereby has further been guaranteed the accuracy of testing.And the present invention is simple in structure, be easy to realize to there is high practical value.
The accompanying drawing explanation
Fig. 1 is the structural drawing of tractor driving of the present invention cabin test macro;
Fig. 2 is the structural representation of self-checking circuit in the present invention;
Fig. 3 is the structural representation of the specific embodiment of self-checking circuit in the present invention;
Fig. 4 a is the circuit diagram of network resistor circuit relay electric control circuit in the present invention;
Fig. 4 b is the circuit diagram of the first electric resistance output circuit in the network resistor circuit in the present invention;
Fig. 4 c is the circuit diagram of the second electric resistance output circuit in the network resistor circuit in the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
Refer to Fig. 1, tractor driving of the present invention cabin test macro, TL type or TS type tractor comprehensive parameters are tested, tractor driving cabin 13 carries some detection tabs, this test macro comprises industrial computer 1, PLC2, the switching frame 3 consisted of external input signal joint 301, external control joint 302 and water temperature/Oil-pressure joint 303, photoelectrical coupler 4, network resistor circuit 5, programmable power supply 6, Switching Power Supply 7, contains self-checking circuit 8, manually-operated handle 9, display 10, printer 11 and the scanner 12 of some joints, wherein:
Manually-operated handle 9 connects PLC2, and by this manually-operated handle, 9 couples of PLC2 manually input;
Display 10, printer 11 and scanner 12 are connected respectively industrial computer 1;
Switching Power Supply 7, connect PLC2 and self-checking circuit 8, gives each parts power supply of test macro, in the present embodiment, is the 24V direct-current switch power supply;
Programmable power supply 6, connect tractor driving cabin 13 and self-checking circuit 8, and connect industrial computer 1 by the USB communication modes, gives 13 power supplies of tractor driving cabin and the working current in this tractor driving cabin 13 is offered to industrial computer 1; In the present embodiment, programmable power supply 6 is the 13.5V direct supply;
Switching frame 3, each joint (external input signal joint 301, external control joint 302 and water temperature/Oil-pressure joint 303) in it docks respectively each detection tabs in corresponding tractor driving cabin, thereby completes the test to the comprehensive parameters in tractor driving cabin 13; Perhaps dock each joint of corresponding self-checking circuit 8, thereby complete the self check of tractor driving cabin test macro;
PLC2, its input end connects external input signal joint 301 by photoelectrical coupler 4, and its first output terminal connects external control joint 302, and its second output terminal connects water temperature/Oil-pressure joint 303 by network resistor circuit 5.
Refer to Fig. 2, self-checking circuit 8 of the present invention comprises self check joint group 801, relay group 802 and the feedback joint group 803 of joining successively, wherein:
Self check joint group 801 comprises some self check joints, and self check joint group 801 connects external control joint 302 and water temperature/Oil-pressure joint 303;
Feedback joint group 803 comprises some feedback joints, and feedback joint group 803 connects external input signal joint 301;
Refer to Fig. 3, the specific embodiment for self-checking circuit 8, in this embodiment, self check joint group 801 comprises that braking oil level joint 8011(receives PLC output Y34), liquid storage dried joint 8012(receives PLC output Y33), left brake pressure joint 8013(receives PLC output Y21), right brake pressure joint 8014(receives PLC output Y22), engine oil pressure joint 8015(receives PLC output Y40), oil filtration joint 8016(receives PLC output Y46), differential lock joint 8017(receives PLC output Y31), chassis Oil-pressure joint 8018(receives PLC output Y30), air filter is blocked joint 8019(and is received PLC output Y45) and neutral startup joint 8020(reception PLC output Y35), relay group 802 comprises the first to the 8th relay 8021-8028, feedback joint group 803 comprises the first to the 9th feedback joint 8031-8039, wherein:
When PLC output Y33 connects, compressor (mapping address X18) has feedback signal, illustrates that the dry detection of liquid storage is qualified, otherwise defective; When PLC output Y33 disconnection, the first relay 8021 are connected, loudspeaker, dipped headlights, infrabar or compressor (mapping address: X08, X09, X16, X18) have feedback signal, illustrate that detection is qualified, otherwise defective; When PLC output Y33 disconnection, the first relay 8021 are disconnected, it is qualified that night lamp or dipped headlights (mapping address: X0A, X0B) have the feedback signal explanation to detect, otherwise defective; If logical front connector feedback (mapping address: X08-X0B) all feed back, and the bunch bonding line detects defective by no signal;
When the second relay 8022 is disconnected, excitation (mapping address: X00) have feedback signal to detect qualified, without feedback signal, without working power, jump out detection; When the second relay 8022 is connected, iron inhaled by starter or generator (mapping address: X17, X1E) has the feedback signal detection qualified, without feedback signal, detects defective;
When the 3rd relay 8023 is disconnected, flameout electromagnetic valve (mapping address: X07) have feedback signal to detect qualified, detect defective without feedback signal; When the 3rd relay 8023 is connected, reversing (mapping address: X19) have feedback signal to detect qualified, detect defective without feedback signal;
When the 3rd relay 8023, connect, when the 4th relay 8024 is disconnected, it is qualified that left brake, left steering or right brake (mapping address: X04, X05, X06) have feedback signal to detect, otherwise detect defective; When the 3rd relay 8023, connect, when the 4th relay 8024 is connected, it is qualified that right turn, rear running light or night lamp (mapping address: X01, X02, X03) have feedback signal to detect, otherwise detect defective; If after 12N is logical, the wire harness feedback (mapping address: X01-X06) all feed back, and the bunch bonding line detects defective by no signal;
When the 5th relay 8025 is connected, the POT(PTO) (mapping address: X0D) have feedback signal to detect qualified, detect defective without feedback signal;
When the 6th relay 8026 is connected, the 4WD(four-wheel drive) (mapping address: X0C) have feedback signal to detect qualified, detect defective without feedback signal;
When PLC output Y30 connects, and the chassis oil pressure (mapping address: X1D) qualified without the feedback signal detection, there is feedback signal to detect defective;
When the 7th relay 8027 is disconnected, air filter is blocked (mapping address: X15) have feedback signal to detect qualified, detect defective without feedback signal; When the 7th relay 8027 is connected, heater plug (mapping address: X14) have feedback signal to detect qualified, detect defective without feedback signal;
When the 8th relay 8028 is connected, differential lock (mapping address: X0E) have feedback signal to detect qualified, detect defective without feedback signal.
Refer to Fig. 4 a, Fig. 4 b and Fig. 4 c, they have formed the network resistor circuit 5 for tractor driving cabin test macro of the present invention jointly, it has the output of two-way resistance, and resistance value is controlled, met the requirement of tractor driving cabin test macro, this network resistor circuit 5 comprises bang-bang circuit, the first electric resistance output circuit and the second electric resistance output circuit, wherein:
Refer to Fig. 4 a, described bang-bang circuit comprises the control port 511 on 18 tunnels, this control port 511De Mei road connects relay YL0-YL8 or a SW0-SW8, an each relay YL0-YL8 or SW0-SW8 series arm in parallel, each series arm is in series by pilot lamp D and current-limiting resistance R; Specifically, each pass line of control port 511 connects the coil of a relay YL0-YL8 or SW0-SW8, and the equal ground connection of coil of each relay YL0-YL8 or SW0-SW8, thereby forms loop; In the present embodiment, control port 511 is the computer control port, and each relay YL0-YL8 and SW0-SW8 are controlled their break-make by PLC2; Pilot lamp D is light emitting diode, the on-state of indicating relay YL0-YL8 or SW0-SW8; Current-limiting resistance R is used for limiting the electric current 8 of pilot lamp D.
18 relay YL0-YL8 and SW0-SW8 in described bang-bang circuit are divided into two groups, and the contact separately of 9 every group relays (YL0 to YL8 or SW0 to SW8) is connected in series successively.
Described the first electric resistance output circuit is identical with the structure of the second electric resistance output circuit, include described 9 relay contacts of serial connection successively, 8 contacts wherein respectively separately and meet resistance YLR1-YLR8 or a SWR1-SWR8, the resistance of these resistance is all different, in the present embodiment, be respectively 0.5 Ω, 1 Ω, 2 Ω, 4 Ω, 8 Ω, 16 Ω, 32 Ω and 64 Ω.
Refer to Fig. 4 b, in the first electric resistance output circuit, the contact of relay YL1-YL8 separately respectively and meet a resistance YLR1-YLR8, thereby determine separately whether resistance YLR1-YLR8 works; The contact of relay YL0 determines whether resistance value of this first resistance circuit; RP4 means the resistance output port;
Refer to Fig. 4 c, in the second electric resistance output circuit, the contact of relay SW2-SW8 separately respectively and meet a resistance SWR1-SWR8, thereby determine separately whether resistance SWR1-SWR8 works; The contact of relay SW0 determines whether resistance value of this second resistance circuit; RP5 means the resistance output port.
In sum, the present invention can carry out self check to system self, on the no problem basis of test macro itself, can effectively test the comprehensive parameters in tractor driving cabin, specifically practical value guaranteeing.
Above embodiment is used for illustrative purposes only, but not limitation of the present invention, person skilled in the relevant technique, without departing from the spirit and scope of the present invention, can also make various conversion or modification, therefore all technical schemes that are equal to also should belong to category of the present invention, should be limited by each claim.
Claims (7)
1. a tractor driving cabin test macro, described tractor driving cabin carries some detection tabs, it is characterized in that, this test macro comprises industrial computer, PLC, the switching frame consisted of external input signal joint, external control joint and water temperature/Oil-pressure joint, photoelectrical coupler, network resistor circuit, contains self-checking circuit, programmable power supply and the Switching Power Supply of some joints, wherein:
Switching Power Supply, connect described PLC and self-checking circuit;
Programmable power supply, connect described tractor driving cabin, self-checking circuit and industrial computer, gives the power supply of described tractor driving cabin and the working current in this tractor driving cabin is offered to described industrial computer;
Industrial computer, comprise the waveform card that contains frequency measurement mouth and waveform delivery outlet, and this industrial computer connects described PLC, and connect described switching frame by described waveform delivery outlet;
The switching frame, each joint in it docks respectively each detection tabs in corresponding described tractor driving cabin, or docks each joint of corresponding described self-checking circuit;
PLC, its input end connects described external input signal joint by described photoelectrical coupler, and its first output terminal directly connects described external control joint, and its second output terminal connects described water temperature/Oil-pressure joint by described network resistor circuit.
2. tractor driving according to claim 1 cabin test macro, is characterized in that, described self-checking circuit comprises self check joint group, relay group and the feedback joint group of joining successively, wherein:
Described self check joint group comprises some self check joints, and this self check joint group connects described external control joint and water temperature/Oil-pressure joint;
Described feedback joint group comprises some feedback joints, and this feedback joint group connects described external input signal joint;
Described relay group comprises some relays, and each relay receives the output of described PLC by each self check joint of correspondence, realize adhesive or the disconnection of each relay contact, and the joint that respectively feeds back by correspondence completes the mapping to described PLC input.
3. tractor driving according to claim 1 and 2 cabin test macro, is characterized in that, described network resistor circuit comprises bang-bang circuit, the first electric resistance output circuit and the second electric resistance output circuit, wherein:
Described bang-bang circuit comprises the control port on 18 tunnels, and this control port De Mei road connects a relay, each relay series arm in parallel, and each series arm is in series by pilot lamp and current-limiting resistance;
18 relays in described bang-bang circuit are divided into two groups, and the contact separately of every group of 9 relays is connected in series successively;
Described the first electric resistance output circuit is identical with the structure of the second electric resistance output circuit, includes described 9 relay contacts of serial connection successively, and 8 contacts wherein respectively separately and connect a resistance.
4. tractor driving according to claim 1 cabin test macro, is characterized in that, described test macro also comprises the manually-operated handle that connects described PLC.
5. tractor driving according to claim 1 cabin test macro, is characterized in that, described test macro also comprises display, printer and the scanner that connects respectively described industrial computer.
6. tractor driving according to claim 1 cabin test macro, is characterized in that, described programmable power supply connects described industrial computer by the USB communication modes.
7. tractor driving according to claim 1 cabin test macro, is characterized in that, described industrial computer connects described PLC by the RS232 mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210150911.3A CN103424264B (en) | 2012-05-15 | 2012-05-15 | Tractor cab testing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210150911.3A CN103424264B (en) | 2012-05-15 | 2012-05-15 | Tractor cab testing system |
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| Publication Number | Publication Date |
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| CN103424264A true CN103424264A (en) | 2013-12-04 |
| CN103424264B CN103424264B (en) | 2015-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210150911.3A Expired - Fee Related CN103424264B (en) | 2012-05-15 | 2012-05-15 | Tractor cab testing system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112255995A (en) * | 2020-10-16 | 2021-01-22 | 珠海格力电器股份有限公司 | Program-controlled resistor output device and program-controlled resistor output method |
| CN114235453A (en) * | 2021-12-10 | 2022-03-25 | 南斗六星系统集成有限公司 | Intelligent cabin product automatic detection system |
| CN114235452A (en) * | 2021-12-10 | 2022-03-25 | 南斗六星系统集成有限公司 | Intelligence passenger cabin product automated inspection assembly line |
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| CN2105694U (en) * | 1991-07-23 | 1992-05-27 | 山西省农业机械化技术推广站 | Tester for electric apparatus of car & tractor |
| US6297646B1 (en) * | 1997-06-25 | 2001-10-02 | Snap-On Tools Company | Electrical tester for small motor vehicles |
| CN201130220Y (en) * | 2007-12-18 | 2008-10-08 | 中国重汽集团济南技术中心有限公司 | System for testing steering room electric apparatus |
| CN202533801U (en) * | 2012-03-31 | 2012-11-14 | 上海工程技术大学 | Test system for tractor driving cabin |
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2012
- 2012-05-15 CN CN201210150911.3A patent/CN103424264B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2105694U (en) * | 1991-07-23 | 1992-05-27 | 山西省农业机械化技术推广站 | Tester for electric apparatus of car & tractor |
| US6297646B1 (en) * | 1997-06-25 | 2001-10-02 | Snap-On Tools Company | Electrical tester for small motor vehicles |
| CN201130220Y (en) * | 2007-12-18 | 2008-10-08 | 中国重汽集团济南技术中心有限公司 | System for testing steering room electric apparatus |
| CN202533801U (en) * | 2012-03-31 | 2012-11-14 | 上海工程技术大学 | Test system for tractor driving cabin |
Non-Patent Citations (3)
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| 张宜宝等: "《分布式小型拖拉机综合性能自动测试系统的研制》", 《农业装备与车辆工程》 * |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112255995A (en) * | 2020-10-16 | 2021-01-22 | 珠海格力电器股份有限公司 | Program-controlled resistor output device and program-controlled resistor output method |
| CN114235453A (en) * | 2021-12-10 | 2022-03-25 | 南斗六星系统集成有限公司 | Intelligent cabin product automatic detection system |
| CN114235452A (en) * | 2021-12-10 | 2022-03-25 | 南斗六星系统集成有限公司 | Intelligence passenger cabin product automated inspection assembly line |
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Inventor after: Zhu Wenli Inventor after: Zhao Xudong Inventor after: Zhou Shun Inventor after: Chen Yang Inventor after: Song Keke Inventor after: Ruan Haiyu Inventor before: Tang Zhixiang Inventor before: Zhao Xudong Inventor before: Zhu Wenli Inventor before: Chen Yang Inventor before: Song Keke Inventor before: Ruan Haiyu |
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Free format text: CORRECT: INVENTOR; FROM: TANG ZHIXIANG ZHAO XUDONG ZHU WENLI CHEN YANG SONG KEKE RUAN HAIYU TO: ZHU WENLI ZHAO XUDONG ZHOU SHUN CHEN YANG SONG KEKE RUAN HAIYU |
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Granted publication date: 20150610 Termination date: 20190515 |