CN104760546A - Dumper loading state detecting and anti-dismantling circuit - Google Patents
Dumper loading state detecting and anti-dismantling circuit Download PDFInfo
- Publication number
- CN104760546A CN104760546A CN201310741193.1A CN201310741193A CN104760546A CN 104760546 A CN104760546 A CN 104760546A CN 201310741193 A CN201310741193 A CN 201310741193A CN 104760546 A CN104760546 A CN 104760546A
- Authority
- CN
- China
- Prior art keywords
- point
- circuit
- detection
- proximity transducer
- voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The invention provides a dumper loading state detecting and anti-dismantling circuit. According to the circuit, a three-wire metal proximity sensor is used for detecting the opening or closing of a dumper carriage cover and whether a dumper carriage body is close to an axle or not; and opening and closing action can be conducted without mechanical contact or without applying any pressure, so that a DC electric apparatus is driven or a control instruction is provided for a computer (PLC) device. Moreover, according to the dumper loading state detecting and anti-dismantling circuit, when the proximity sensor breaks down, corresponding breakdown instructions are output through an open circuit detection circuit and a short circuit detection circuit. The problems that in the dumper loading state detection process of a vehicle-mounted GNSS terminal, breaking is likely to happen, line faults cannot be found easily, and the anti-dismantling effect is poor are solved.
Description
Technical field
The present invention relates on dumping car and fill part detection technique, what be specifically related to is that a kind of dumping car fills state-detection and decomposing prevention circuit.
Background technology
Dumping car refers to the vehicle of the unloaded of cargo voluntarily by hydraulic pressure or mechanical lift.Also known as tip lorry.Be made up of parts such as car chassis, hydraulic lifting mechanism, loading space and power takeoffs.Automatically to tumble certain angle discharging owing to loading compartment, greatly save dumping time and labour power, shorten the haul-cycle time, enhance productivity, reducing traffic cost, is conventional Transport Appropriation Rolling Stock.
Current dumping car, for ease of management, as the dumping car of urban dregs transport, usually can install vehicle-mounted GNSS terminal additional, to detect the state of upper dress part, and upload to supervising platform, realizes the supervision of the signals such as carriage lifting, railway carriage or compartment lid keying and empty and load.But there is following defect by the supervision dumping car of vehicle-mounted GNSS terminal at present: one, the lifting control system in compartment is made up of electric-control system, pneumatic system, hydraulic efficiency pressure system, mechanical system, the system that Some vehicles uses is without electrical controller, GNSS signal collection is generally directly get lifting solenoid control signal, therefore be easy to be cracked, line fault not easily finds, tamper weak effect; Two, lid opening/closing system in railway carriage or compartment adopts vehicular power-bottle as propulsion source, drives Hydraulic Pump, by hydraulic pump drive oil cylinder, and hydraulic oil cylinder driving chain, sprocket wheel makes cover plate action; But due to railway carriage or compartment lid open-shut control system infinite place switch designs, can only get and open or close the action in compartment, mechanical signal and electric signal that whether cover plate close completely cannot be obtained.
Summary of the invention
For this reason, the object of the present invention is to provide on a kind of dumping car and fill state-detection and decomposing prevention circuit, to solve, current vehicle-mounted GNSS terminal dumping car fills in state-detection, existing is easily cracked, and line fault not easily finds, the problem of tamper weak effect.
The object of the invention is to be achieved through the following technical solutions.
A kind of dumping car fills state-detection and decomposing prevention circuit, comprising:
Whether one proximity transducer, for detecting self-discharging carriage lid and envelope is opened or closed, and detect dump truck van near vehicle bridge (carriage lifting);
One open detection circuit, is connected with described proximity transducer, for the electric current of detecting sensor power supply, and exports breakdown signal when proximity transducer diminishes exceed normal current scope without working current or electric current;
One short-circuit detecting circuit, is connected with described proximity transducer, for the electric current of detecting sensor power supply, and exports breakdown signal when detecting that proximity transducer ER effect exceedes greatly normal current certain value;
One State-output circuit, is connected with described proximity transducer, the level that the level conversion for being exported by proximity transducer becomes rear class equipment to identify.
Preferably, described proximity transducer is three-wire type metal proximity sensor S2, and it comprises a power supply positive input terminal A be connected with described open detection circuit, described short-circuit detecting circuit, a detection signal mouth B be connected with State-output circuit and power supply ground input end.
Preferably, described open detection circuit comprises comparator U2A, when described proximity transducer S2 normally connects use, the voltage of the C point of comparator U2A equals the tube voltage drop that 5V subtracts diode D2, D point voltage equals 5*(R9+R10)/(R6+R9+R10), C point voltage is lower than D point voltage, and U2A exports as high-impedance state, is high level by resistance R17 pull-up; When proximity transducer S2 opens a way, A point is unsettled over the ground, and the voltage of C point equals 5V, higher than D point voltage 5*(R9+R10)/(R6+R9+R10), U2A output low level, G point exports fault alarm level low level.
Preferably, described comparator U2A is chip LM393.
Preferably, described short-circuit detecting circuit comprises comparator U2B, when proximity transducer S2 normally connects use, the voltage of F point equals 5V and subtracts the tube voltage drop that (sensor current takes advantage of R30) subtracts diode D2 again, E point voltage equals 5*R10/(R6+R9+R10), F point voltage is higher than E point voltage, and U2B exports as high-impedance state, is high level by resistance R17 pull-up; When proximity transducer S2 short circuit, A point shorted to earth, the voltage of F point equals 0V, lower than E point voltage 5*R10/(R6+R9+R10), U2B output low level, G point exports fault alarm level low level.
Preferably, described comparator U2B is chip LM393.
Preferably, described State-output circuit comprises aerotron Q2, and the base stage of described aerotron Q2 is connected with the B point of three-wire type metal proximity sensor S2 by resistance R32, and collecting electrode exports H point by resistance R21; When metal is near three-wire type metal proximity sensor S2, B point is low level, and H point exports high level, and when metal is away from three-wire type metal proximity sensor S2, B point is high level, H point output low level.
Preferably, described aerotron Q2 is BC846B.
The present invention compared with prior art, beneficial effect is: dumping car provided by the invention fills state-detection and decomposing prevention circuit, it passes through three-wire type metal proximity sensor to the unlatching of self-discharging carriage lid or closedown, and whether envelope detects near vehicle bridge (carriage lifting), do not need Mechanical Contact and apply any pressure to make switch motion, thus drive DC electric apparatus or provide control command to computing machine (PLC) device; And the present invention by open detection circuit, short-circuit detecting circuit when proximity transducer breaks down, export corresponding faulting instruction, efficiently solve when vehicle-mounted GNSS terminal dumping car fills state-detection, what exist is easily cracked, and line fault is not easily found and the problem of tamper weak effect.
Accompanying drawing explanation
Fig. 1 dumping car of the present invention fills state-detection and decomposing prevention circuit functional block diagram;
Fig. 2 dumping car of the present invention fills state-detection and decomposing prevention circuit schematic diagram.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Refer to shown in Fig. 1, Fig. 2, Fig. 1 dumping car of the present invention fills state-detection and decomposing prevention circuit functional block diagram; Fig. 2 dumping car of the present invention fills state-detection and decomposing prevention circuit schematic diagram.Provide in the embodiment of the present invention on a kind of dumping car and fill state-detection and decomposing prevention circuit, it fills state-detection mainly on current vehicle-mounted GNSS terminal dumping car, and exist and be easily cracked, line fault not easily finds, tamper weak effect; And whether cover plate closes the problem that cannot accurately judge completely.
Proximity transducer, open detection circuit, short-circuit detecting circuit and State-output circuit are wherein the present invention includes.
Proximity transducer is three-wire type metal proximity sensor S2, it comprises a power supply positive input terminal A(3 pin be connected with described open detection circuit, described short-circuit detecting circuit), a detection signal mouth B(1 pin be connected with State-output circuit) and power supply ground input end (2 pin), the power supply of proximity transducer S2 through series diode D2, arrives A point after resistance R30 by 5V.The unlatching that its railway carriage or compartment mainly for detection of dumping car is covered or closedown, or for whether detecting dump truck van near vehicle bridge (carriage lifting); Railway carriage or compartment lid opens and closes the proximity transducer detected and is arranged on lid open-shut control system cylinder movement (execution) position, railway carriage or compartment, detects the action of oil cylinder; The sensor detecting carriage lifting is installed in vehicle bridge, and inspection vehicle envelope is close to or away from vehicle bridge.
It should be noted that proximity transducer is that one directly contacts and manipulable position switch without the need to carrying out machinery with movable parts, when the sensitive surface of object proximity switch is to operating distance, do not need Mechanical Contact and apply any pressure to make switch motion, thus drive DC electric apparatus or provide control command to computing machine (PLC) device.
Open detection circuit, for the electric current of detecting sensor power supply, when sensor wire harness is cut off or sensor internal open circuit damages, open detection circuit detects that sensor exports breakdown signal when diminishing exceed normal current scope without working current or electric current.It includes comparator U2A(chip LM393), the C point (2 pin) of comparator U2A is connected with resistance R2 and diode D2, and power supply through parallel diode D2, arrives C point after resistance R2 by 5V; , be divided into two-way after the D point (3 pin) of comparator U2A is connected with resistance R9, a road is connected with the E point of comparator U2B, and another road is directly by resistance R10 ground connection; Export breakdown signal to G point after No. 1 pin of comparator U2A is connected with resistance R17, and G point is connected to GNSS monitor terminal high level input end.When described proximity transducer S2 normally connects use, the voltage of the C point of comparator U2A equals the tube voltage drop that 5V subtracts diode D2, and D point voltage equals 5*(R9+R10)/(R6+R9+R10), C point voltage is lower than D point voltage, U2A exports as high-impedance state, is high level by resistance R17 pull-up; When proximity transducer S2 opens a way, A point is unsettled over the ground, and the voltage of C point equals 5V, higher than D point voltage 5*(R9+R10)/(R6+R9+R10), U2A output low level, G point exports fault alarm level low level.
Short-circuit detecting circuit, for the electric current of detecting sensor power supply, when sensor wire harness shorted to earth or sensor internal open circuit, short-circuit detecting circuit detects that sensor current becomes when exceeding greatly normal current certain value and exports breakdown signal.It includes comparator U2B(chip LM393), the F point (5 pin) of comparator U2B by resistance R20 directly with the detection signal mouth B(1 pin of proximity transducer S2) be connected, the E point (6 pin) of comparator U2B by the D point (3 pin) of resistance R9 and comparator U2A, and is connected to+5V power supply by resistance R6; After 7 pin of comparator U2B are then connected with No. 1 pin of comparator U2A, be connected with resistance R17 and export breakdown signal to G point, and G point are connected to GNSS monitor terminal high level input end.When proximity transducer S2 normally connects use, the voltage of F point equals 5V and subtracts the tube voltage drop that (sensor current takes advantage of R30) subtracts diode D2 again, and E point voltage equals 5*R10/(R6+R9+R10), F point voltage is higher than E point voltage, U2B exports as high-impedance state, is high level by resistance R17 pull-up; When proximity transducer S2 short circuit, A point shorted to earth, the voltage of F point equals 0V, lower than E point voltage 5*R10/(R6+R9+R10), U2B output low level, G point exports fault alarm level low level.
State-output circuit, Main Function is level conversion, by the level that the level conversion that sensor exports becomes rear class equipment to identify.It mainly includes aerotron Q2, and the base stage of described aerotron Q2 is connected with the B point of three-wire type metal proximity sensor S2 by resistance R32, and collecting electrode exports H point by resistance R21, H point access GNSS monitor terminal high level input end.State-output circuit B point is that the signal of sensor exports, the level range of the sensor that B point exports is 0-5V, H end is GNSS car-mounted terminal level range 0-24V, when metal is near sensor S2, B point is low level, and H point exports high level, when metal is away from sensor S2, B point is high level, H point output low level.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. dumping car fills state-detection and a decomposing prevention circuit, it is characterized in that, comprising:
Whether one proximity transducer, for detecting unlatching or the cut out of self-discharging carriage lid, and detect dump truck van near vehicle bridge;
One open detection circuit, is connected with described proximity transducer, for the electric current of detecting sensor power supply, and exports breakdown signal when proximity transducer diminishes exceed normal current scope without working current or electric current;
One short-circuit detecting circuit, is connected with described proximity transducer, for the electric current of detecting sensor power supply, and exports breakdown signal when detecting that proximity transducer ER effect exceedes greatly normal current certain value;
One State-output circuit, is connected with described proximity transducer, the level that the level conversion for being exported by proximity transducer becomes rear class equipment to identify.
2. dumping car according to claim 1 fills state-detection and decomposing prevention circuit, it is characterized in that, described proximity transducer is three-wire type metal proximity sensor S2, and it comprises a power supply positive input terminal A be connected with described open detection circuit, described short-circuit detecting circuit, a detection signal mouth B be connected with State-output circuit and power supply ground input end.
3. dumping car according to claim 2 fills state-detection and decomposing prevention circuit, it is characterized in that, described open detection circuit comprises comparator U2A, when described proximity transducer S2 normally connects use, the voltage of the C point of comparator U2A equals the tube voltage drop that 5V subtracts diode D2, and D point voltage equals 5*(R9+R10)/(R6+R9+R10), C point voltage is lower than D point voltage, U2A exports as high-impedance state, is high level by resistance R17 pull-up; When proximity transducer S2 opens a way, A point is unsettled over the ground, and the voltage of C point equals 5V, higher than D point voltage 5*(R9+R10)/(R6+R9+R10), U2A output low level, G point exports fault alarm level low level.
4. dumping car according to claim 3 fills state-detection and decomposing prevention circuit, it is characterized in that, described comparator U2A is chip LM393.
5. dumping car according to claim 2 fills state-detection and decomposing prevention circuit, it is characterized in that, described short-circuit detecting circuit comprises comparator U2B, when proximity transducer S2 normally connects use, the voltage of F point equals 5V and subtracts the tube voltage drop that (sensor current takes advantage of R30) subtracts diode D2 again, and E point voltage equals 5*R10/(R6+R9+R10), F point voltage is higher than E point voltage, U2B exports as high-impedance state, is high level by resistance R17 pull-up; When proximity transducer S2 short circuit, A point shorted to earth, the voltage of F point equals 0V, lower than E point voltage 5*R10/(R6+R9+R10), U2B output low level, G point exports fault alarm level low level.
6. dumping car according to claim 5 fills state-detection and decomposing prevention circuit, it is characterized in that, described comparator U2B is chip LM393.
7. dumping car according to claim 2 fills state-detection and decomposing prevention circuit, it is characterized in that, described State-output circuit comprises aerotron Q2, and the base stage of described aerotron Q2 is connected with the B point of three-wire type metal proximity sensor S2 by resistance R32, and collecting electrode exports H point by resistance R21; When metal is near three-wire type metal proximity sensor S2, B point is low level, and H point exports high level, and when metal is away from three-wire type metal proximity sensor S2, B point is high level, H point output low level.
8. dumping car according to claim 7 fills state-detection and decomposing prevention circuit, it is characterized in that, described aerotron Q2 is BC846B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310741193.1A CN104760546A (en) | 2013-12-30 | 2013-12-30 | Dumper loading state detecting and anti-dismantling circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310741193.1A CN104760546A (en) | 2013-12-30 | 2013-12-30 | Dumper loading state detecting and anti-dismantling circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104760546A true CN104760546A (en) | 2015-07-08 |
Family
ID=53642742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310741193.1A Pending CN104760546A (en) | 2013-12-30 | 2013-12-30 | Dumper loading state detecting and anti-dismantling circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104760546A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107657696A (en) * | 2017-09-18 | 2018-02-02 | 谭毅 | Intelligent antitheft method, intelligent anti-theft lock and trolley |
-
2013
- 2013-12-30 CN CN201310741193.1A patent/CN104760546A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107657696A (en) * | 2017-09-18 | 2018-02-02 | 谭毅 | Intelligent antitheft method, intelligent anti-theft lock and trolley |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102490717B (en) | Control method for electromobile brake switch control system | |
| JP6713765B2 (en) | Railway vehicle inspection system | |
| CN105929774A (en) | System for monitoring transportation process of slag car | |
| CN207311235U (en) | Safety control system of power takeoff | |
| CN203611898U (en) | State detection and anti-disassembly circuit on dumper | |
| CN108152728A (en) | A kind of relay adhesion detection device | |
| CN104760546A (en) | Dumper loading state detecting and anti-dismantling circuit | |
| CN207028862U (en) | A kind of storehouse power supply power supply monitoring device | |
| CN104483588A (en) | Electrical failure diagnosis method and device for relay control terminal | |
| CN101844564A (en) | Automatic positioning, loading and unloading control device for wagon | |
| CN103116338A (en) | Intelligent management and control device of mining dump vehicle | |
| CN205149740U (en) | Two sections rearmounted electrical system of tracked vehicle | |
| CN210176067U (en) | Tippler system capable of automatically identifying empty wagon | |
| CN202496123U (en) | Full electronic automotive lamp fault automatic detection and feedback system | |
| CN209260625U (en) | A kind of multi-mode pure electric vehicle road sweeper traveling control system with assisted Regeneration braking | |
| CN103552519A (en) | Integrated circuit protection method of mining electric wheel dump truck | |
| CN108318833B (en) | Quick detection device for power supply under vehicle | |
| CN207106520U (en) | New type mining buffer stop | |
| CN106394928B (en) | Double-power containerized cargo loader for airport | |
| CN204222736U (en) | Heavy duty truck door opens warning | |
| CN202080274U (en) | Safety dual-control device for carriage lifting of dump truck | |
| CN212615659U (en) | Oil level alarm device for hydraulic system of electric wheel automobile | |
| CN117419760A (en) | Dump truck detection system | |
| CN204142504U (en) | A kind of electric locomotive portable fault diagnosis device | |
| CN103225242A (en) | Control device for rail lifting mechanism to pass fishplates on railway line automatically |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150708 |
|
| WD01 | Invention patent application deemed withdrawn after publication |