CN204731021U - Agricultural Machinery Equipment drive failures detects wireless alarm system - Google Patents
Agricultural Machinery Equipment drive failures detects wireless alarm system Download PDFInfo
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- CN204731021U CN204731021U CN201520398274.0U CN201520398274U CN204731021U CN 204731021 U CN204731021 U CN 204731021U CN 201520398274 U CN201520398274 U CN 201520398274U CN 204731021 U CN204731021 U CN 204731021U
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Abstract
The utility model provides a kind of Agricultural Machinery Equipment drive failures and detects wireless alarm system, detects radiating circuit and malfunction coefficient and warning circuit consist of radio connection by drive failures; Drive failures detects radiating circuit and is made up of Hall element signal acquisition module, voltage comparator Signal-regulated kinase, " feeding dog " signal analyse block, the first logic processing module, monostable trigger module, the second logic processing module, wireless signal transmitting module; Malfunction coefficient and warning circuit comprise wireless receiving module, signal processing module, LED and hummer, and signal processing module is made up of toggle switch and exclusion; Wireless signal transmitting module is connected with wireless receiving module, and wireless receiving module is connected with signal processing module, and signal processing module is connected with LED and hummer respectively.The utility model is applicable to the real-time testing and alarm of multichannel drive failures of Agricultural Machinery Equipment, has important practical value to raising agricultural machinery industry equipment operation quality.
Description
Technical field
The utility model relates to Agricultural Machinery Equipment proving installation technical field, particularly refers to that a kind of Agricultural Machinery Equipment drive failures detects wireless alarm system.
Background technology
Gear train, as power transmission device, is be a kind of conventional physical construction in Agricultural Machinery Equipment.In agricultural machinery working process, on the one hand, in the face of complicated operating environment (the high vibrational state as tractor), gearing part has the situation such as belt or chain releasing to occur often; On the other hand, gear train is often in the state of running up, and after long working, gear train occurs that damaging, wear and tear, be out of shape and lose the problems such as transient equilibrium can hardly be avoided.These all can make gear train break down, if these faults can not Timeliness coverage processing, will affect the normal operation of Agricultural Machinery Equipment, reduce quality and the efficiency of operation.Such as some seeders, once occur drive failures and there is no Timeliness coverage and process, will broadcast leakage be caused, thus cause crop failure.
Utility model content
The purpose of this utility model is to provide a kind of Agricultural Machinery Equipment drive failures and detects wireless alarm system, for the transport characteristics of gearing, application Hall element can realize the real-time detection of driving wheel and engaged wheel duty, and fault alarm and Presentation Function are provided, to solve when kinematic train breaks down, operating personnel can not the problem of Timeliness coverage drive failures, thus provides reference for operating personnel, improves the quality of agricultural machinery working.
For achieving the above object, the Agricultural Machinery Equipment drive failures that the utility model provides detects wireless alarm system, it is characterized in that: detect radiating circuit and malfunction coefficient and warning circuit by drive failures and consist of radio connection;
Described drive failures detects radiating circuit and is made up of Hall element signal acquisition module, voltage comparator Signal-regulated kinase, " feeding dog " signal analyse block, the first logic processing module, monostable trigger module, the second logic processing module, wireless signal transmitting module; The signal of Hall element signal acquisition module collection is sent to comparator signal conditioning module, the signal got from Hall element collection is after over-voltage comparator conditioning module, be transformed into " feeding dog " Signal transmissions to " feeding dog " signal analyse block, signal analyse block is connected with the first logic processing module " to feed dog ", first logic processing module and monostable trigger model calling, monostable trigger module is connected with the second logic processing module, and the second logic processing module is connected with wireless signal transmitting module;
Described malfunction coefficient and warning circuit comprise wireless receiving module, signal processing module, LED and hummer, and described signal processing module is made up of toggle switch and exclusion;
Described wireless signal transmitting module is connected with wireless receiving module, and wireless receiving module is connected with signal processing module, and signal processing module is connected with LED and hummer respectively.
As a kind of preferred version, described Hall element signal acquisition module is made up of the magnet steel be fixed on the driving wheel of Agricultural Machinery Equipment gear train and engaged wheel and Hall element.
As another preferred version, described voltage comparator Signal-regulated kinase is the voltage comparator be barricaded as with LM393.
As another preferred version, described " feeding dog " signal analyse block is the circuit be barricaded as with watchdog chip MAX813L.
As another preferred version, described first logic processing module is made up of two XOR gate of 74HC86AD chip.
As another preferred version, described monostable trigger module is made up of 74HC123E chip.
As another preferred version, described second logic processing module is made up of an XOR gate of 74HC86AD chip and a Sheffer stroke gate of 74LS00 chip.
As another preferred version, described wireless signal transmitting module comprises wireless transmitter module, exclusion, a Sheffer stroke gate of toggle switch and 74LS00 chip.
Advantage of the present utility model is as follows:
One, can detect the duty of Agricultural Machinery Equipment kinematic train in real time, when a fault has occurred, can and alarm, operating personnel is processed in time, increases work efficiency.
Its two, Signal transmissions is all wireless transmission, instead of wire transmission; The signal of this wireless transmission can't be obscured by an obstacle, and that is this wireless transmission can be sent to front end (checking for people as being sent to pilothouse from the operation end of Combined rape precision direct seeder) from the end of Agricultural Machinery Equipment easily.Compare wire transmission, have easy for installation, save the advantage of material.
Its three, the wireless transmitter module in the utility model circuit is only just powered when breaking down transmitting, and remaining circuit is then by digit chip module composition, and power consumption requirements is low, uses 9v battery just can realize working long hours.And electronic devices and components used are very common, with low cost.
Accompanying drawing explanation
Fig. 1 is the interface circuit figure of the utility model Hall element signals collecting signal.
Fig. 2, Fig. 3, Fig. 4, Fig. 5 are the voltage comparator Signal-regulated kinase circuit diagrams that the signal of the utility model to Hall element collection is nursed one's health.
Fig. 6, Fig. 7, Fig. 8, Fig. 9 are the utility model corresponding " feeding dog " signal analyse block circuit diagrams.
Figure 10 is the utility model first logic processing module circuit diagram.
Figure 11 is the utility model monostable trigger module circuit diagram.
Figure 12 is the Part I of the utility model second logic processing module circuit diagram.
Figure 13 is the Part II of the utility model second logic processing module circuit diagram.
Figure 14 is the utility model radio transmitter figure.
Figure 15 is the utility model wireless receiving electricity circuit diagram.
Figure 16 is the utility model buzzer circuit figure.
Figure 17 is the utility model LED lamp circuit figure.
Figure 18 is the scantling plan that the utility model specifically practices.
Figure 19 is utility model works mode FB(flow block).
Figure 20 is general hardware block diagram of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1: four Hall elements collect the signal of three engaged wheels and a driving wheel respectively, are respectively Port1, Port2, Port3 and Port4.
As shown in Fig. 2, Fig. 3, Fig. 4, Fig. 5, four voltage comparators, respectively to Port1, Port2, Port3 and Port4 process, export S1, S2, S3, S4 afterwards respectively.
As shown in Fig. 6, Fig. 7, Fig. 8, Fig. 9, S1, S2, S3, S4 are input to corresponding feeding in dog chip signal analysis circuit respectively, export WD1, WD2, WD3, WD4 respectively afterwards.
As shown in Figure 10, the first logic processing module is analyzed WD1, WD2, WD3, whether there occurs change, export C afterwards with the duty detecting engaged wheel.
As shown in figure 11, C is input in monostable trigger module, when engaged wheel duty changes, if there is an engaged wheel to break down suddenly from normal work or become from fault be normally, the level of C all can overturn, monostable circuit, two output signals must have one to become high level (be 0.75s by outer meeting resistance electric capacity determination high level lasting time), and another is still low level.
As shown in figure 12, N and Y two signals obtain signal Q after XOR, make when be no matter fault occur or trouble shooting time, Q is high level (high level lasting time is consistent with monostable trigger module high level lasting time).
As shown in figure 13, signal Q and signal WD4 obtains signal K after NAND operation, only have when driving wheel rotates, and when signal Q is high level, signal K is just low level, and wireless signal could be launched.
As shown in figure 14, WD1, WD2, WD3 tri-signals, after negate, are input to D0, D1, D2 tri-pins respectively, represent the information of the duty of three engaged wheels respectively.WD4 signal does not then need negate to be directly inputted to D3 pin, transmits the information of the duty of driving wheel, is relay indicating light (green).Signal K then controls the Enable Pin of transmitting chip, and the Enable Pin of this transmitting chip is that low level triggers, so can trigger wireless transmit chip when K signal is low level.Exclusion RES-8 serves as the effect of pull-up resistor, and SW1 is then the switch of exclusion, reaches the object that communication adds address.
As shown in figure 15, exclusion RES-8 serves as the effect of pull-up resistor, and SW1 is then the switch of exclusion, reaches the object that communication adds address.Consistent then with above radiating circuit of signal above D0, D1, D2, D3, these four signals then directly control four pilot lamp, and D0, D1, D2 are malfunction indicator lamp (redness), and this engaged wheel of the bright display of lamp has fault; D3 is relay indicating light, and the bright expression driving wheel of lamp is in rotation.VT then controls hummer, reminds staff's fault to exist when hummer rings.The output terminal of this receiving circuit is self-locking, and after receiving a signal in other words, the signal of output terminal can keep always, just can change until receive signal next time.
As shown in figure 16, be hummer start-up circuit, hold the signal BEEP exported to control by VT.
As shown in figure 17, be LED start-up circuit, hold signal LED1, LED2, LED3, the LED4 exported to control by D0, D1, D2, D3.
As shown in Figure 18, Figure 19, the working method of aggregate performance the utility model warning system and flow process.
As shown in figure 20, for the general illustration of the utility model hardware capability, wherein 1 is signal input part, and 2 is Signal-regulated kinase, and 3 is " house dog " signal judge module, 4,6,7,8 logical operation module is, 5 is monostable circuit, and 9,11 select address module for toggle switch, 10 be launch without letter signal, 12 be receiver module, 13 be three paths of LEDs display, 14 represent be buzzer warning module.
Principle of work of the present utility model is as follows: the utility model belongs to Agricultural Machinery Equipment technical field of measurement and test, this system adopts to obtain signal by Hall element from the main driving wheel of Agricultural Machinery Equipment and multichannel (as 3-6 road) engaged wheel, be input to respectively after conditioning and feed dog chip, feed the output signal representative main driving wheel of dog chip and the duty (rotate and stop operating) of engaged wheel.The output signal of multichannel hello dog chip realizes the wireless transmit of engaged wheel drive failures information through logic processing circuit, concrete testing process is when main driving wheel quits work, wireless transmitter module quits work, when main driving wheel works, as long as there is drive failures that (as belt or chain releasing etc.) occur in multichannel engaged wheel, and can transmitter module be started, the failure message of correspondence is sent by geocoding.The wireless receiving module of pilothouse then receives the signal launched, and shows corresponding engaged wheel drive failures information, realize warning reminding simultaneously by hummer by multi-way LED lamp.
This system realizes real-time testing and alarm based on the logical relation between driving wheel rotary state and multichannel engaged wheel rotary state, as long as a road or multichannel engaged wheel generation stall will produce alerting signal, corresponding fault engaged wheel position also can show.
The basic logic relation of Agricultural Machinery Equipment transmission is that driving wheel starts, then multiple engaged wheel and then starts; Driving wheel stops, then multiple engaged wheel also can stop.If driving wheel starts, and has trailing wheel stall, then illustrate and occurred fault.According to this logical relation, drive failures detection and wireless alarm system are designed.Utilize Hall element to respond to the magnet steel be attached on driving wheel and engaged wheel to output signal, the each road signal exported inputs the watchdog chip on corresponding road after conditioning, watchdog chip judges wheel turns state (if wheel normal rotation, export high level, otherwise with regard to output low level) according to the signal of input.Then the output signal of watchdog chip corresponding for multichannel engaged wheel is directly connected with the data bit of wireless transmitter module, XOR is carried out to these signals simultaneously, (result of such computing is when in multiple engaged wheel, any one duty changes to obtain an output signal, capital makes the level of output signal overturn), this output signal enters the input end of monostable circuit, its any once inside out all can monostable circuit, produces high level signal.The dog chip signal output of feeding of this signal and main driving wheel carries out NAND operation, and whether operation result determines wireless signal transmission.While wireless signal transmission, hummer sounds, and produces alarm, and also failure message is delivered to agricultural machinery operation room.During a certain road fault, the LED that this road engaged wheel is corresponding can be lit, and during trouble shooting, LED can be extinguished, and reports to the police and also removes.
Described in above scheme, this fault detect warning system is made up of two parts, and Part I is in the gear train of Agricultural Machinery Equipment, and major function is collection signal, analytic signal and transmitting; Part II is in the operation room of Agricultural Machinery Equipment, and major function is malfunction coefficient and warning.
The circuit of Part I can be referred to as drive failures and detect radiating circuit, and it consists of: Hall element signal acquisition module, voltage comparator Signal-regulated kinase, " feeding dog " signal analyse block, the first logic processing module, monostable trigger module, the second logic processing module, wireless signal transmitting module.
Hall element signal acquisition module is made up of the magnet steel be fixed on the driving wheel of Agricultural Machinery Equipment gear train and engaged wheel and Hall element.Magnet steel is fixed on the wheel hub of gear train, and Hall element is then fixed on the cross-section parallel of taking turns and can senses the position of magnet steel.According to the conventional rotating speed of principal and subordinate wheel, can fix several magnet steel, and coordinate corresponding Hall element on wheel hub, during to guarantee that principal and subordinate wheel rotates, the signal period that Hall element produces is within 1.6s.
Voltage comparator Signal-regulated kinase is the voltage comparator be barricaded as with LM393, the signal got from Hall element collection is after over-voltage comparator modulate circuit, be transformed to regular square wave, the dutycycle of this square wave and cycle are then determined by the velocity of rotation of the wheel in real work.And this square-wave signal is as " feeding dog " signal.
Signal analyse block is the circuit be barricaded as with watchdog chip MAX813L " to feed dog ", and the principal feature of this chip is that output terminal just exports high level signal when input end has signal to input in 1.6s; And when input end does not have signal to input or input signal cycle is greater than the signal of 1.6s, output terminal is with regard to output low level signal.This feature is applicable to whether having square-wave signal to export for detecting voltage comparator circuit very much, thus judges whether engaged wheel rotates.When there being square-wave signal (cycle is less than 1.6s) input to feed dog chip, feeding dog chip output and exporting high level, showing wheel turns; When the square-wave signal being greater than 1.6s when not having square-wave signal or cycle inputting from the input end of feeding dog chip, feeding dog chip output output low level, showing that wheel stops operating.
First logic processing module is made up of two XOR gate, major function detects the change (become stall from rotation or become rotation from stall) whether multiple engaged wheel exists duty, when duty changes, the output level of XOR gate overturns (low level turns high level or high level turns low level), and this output signal is as the input signal of monostable trigger module.
Monostable trigger module is made up of 74HC123E chip, and this chip contains two monostalbe triggers, and each can be configured to rising edge and triggers or negative edge triggering.Because be likely that low level turns high level or high level turns low level from the signal of the first logic processing module input, so two monostalbe triggers are configured to rising edge and negative edge triggering respectively.When the signal level inputted can be made like this to overturn (low level turns high level or high level turns low level), 74HC123E chip can be triggered, thus exports high level signal and produce high level (be 0.75s by outer meeting resistance electric capacity determination high level lasting time); And when not having level conversion, the two-way of monostable trigger module exports and is low level signal; And when transmission break down or trouble shooting time, this circuit input end can obtain a level shifted signal, any road during the two-way of monostable trigger module can be made to export becomes high level (be 0.75s by outer meeting resistance electric capacity determination high level lasting time), and another road is still low level.
Second logic processing module is made up of an XOR gate and a Sheffer stroke gate.Monostable trigger module has two output signals, but these two output signals may be only low level or one for high level one is low level simultaneously, therefore (when these two output signals are all low, XOR result is low level two of both monostables output signals to be carried out XOR; When these two output signals are one high and one low, XOR result is high level), two of a monostable circuit output signal can be merged into a signal, facilitate logical calculated.From XOR gate signal out corresponding with driving wheel feed signal that dog chip exports carry out NAND operation (when only having two signals to be all high level, just output low level; Otherwise exporting is all high level), the output control of NAND operation the Enable Pin of wireless transmitter module.When result is high level, wireless transmitter module can not wireless signal emission; Otherwise, when result is low level, wireless transmitter module wireless signal emission.
Radio transmitter is primarily of wireless transmitter module, exclusion, toggle switch and Sheffer stroke gate composition, what exclusion served as is pull-up resistor, with toggle switch work together change wireless signal transmitting address (only have launch address and receiver address consistent time could proper communication), make can not produce signal disturbing when multipair system inter-working.The effect of Sheffer stroke gate carries out negate to engaged wheel from feeding dog chip signal out, and alerting signal can correctly be shown.
Part II can be called malfunction coefficient and warning circuit, primarily of wireless receiving module, toggle switch, exclusion, LED, hummer composition.
What exclusion served as is pull-up resistor, works and change the receiver address of wireless signal together with toggle switch.Wireless receiving module receives the signal that operation area is sent, and controls LED and hummer.Hummer mainly plays alarm function, once there be reception of wireless signals, hummer will sound, and LED then can demonstrate specifically which engaged wheel to break down.
Claims (8)
1. Agricultural Machinery Equipment drive failures detects a wireless alarm system, it is characterized in that: detect radiating circuit and malfunction coefficient and warning circuit by drive failures and consist of radio connection;
Described drive failures detects radiating circuit and is made up of Hall element signal acquisition module, voltage comparator Signal-regulated kinase, " feeding dog " signal analyse block, the first logic processing module, monostable trigger module, the second logic processing module, wireless signal transmitting module; The signal of Hall element signal acquisition module collection is sent to comparator signal conditioning module, the signal got from Hall element collection is after over-voltage comparator conditioning module, be transformed into " feeding dog " Signal transmissions to " feeding dog " signal analyse block, signal analyse block is connected with the first logic processing module " to feed dog ", first logic processing module and monostable trigger model calling, monostable trigger module is connected with the second logic processing module, and the second logic processing module is connected with wireless signal transmitting module;
Described malfunction coefficient and warning circuit comprise wireless receiving module, signal processing module, LED and hummer, and described signal processing module is made up of toggle switch and exclusion;
Described wireless signal transmitting module is connected with wireless receiving module, and wireless receiving module is connected with signal processing module, and signal processing module is connected with LED and hummer respectively.
2. Agricultural Machinery Equipment drive failures according to claim 1 detects wireless alarm system, it is characterized in that: described Hall element signal acquisition module is made up of the magnet steel be fixed on the driving wheel of Agricultural Machinery Equipment gear train and engaged wheel and Hall element.
3. Agricultural Machinery Equipment drive failures according to claim 1 detects wireless alarm system, it is characterized in that: described voltage comparator Signal-regulated kinase is the voltage comparator be barricaded as with LM393.
4. Agricultural Machinery Equipment drive failures according to claim 1 detects wireless alarm system, it is characterized in that: described " feeding dog " signal analyse block is the circuit be barricaded as with watchdog chip MAX813L.
5. Agricultural Machinery Equipment drive failures according to claim 1 detects wireless alarm system, it is characterized in that: described first logic processing module is made up of two XOR gate.
6. Agricultural Machinery Equipment drive failures according to claim 1 detects wireless alarm system, it is characterized in that: described monostable trigger module is made up of 74HC 123E chip.
7. Agricultural Machinery Equipment drive failures according to claim 1 detects wireless alarm system, it is characterized in that: described second logic processing module is made up of an XOR gate of 74HC86 chip and a Sheffer stroke gate of 74LS00 chip.
8. Agricultural Machinery Equipment drive failures according to claim 1 detects wireless alarm system, it is characterized in that: described wireless signal transmitting module comprises wireless transmitter module, exclusion, a Sheffer stroke gate of toggle switch and 74LS00 chip.
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| CN201520398274.0U CN204731021U (en) | 2015-06-10 | 2015-06-10 | Agricultural Machinery Equipment drive failures detects wireless alarm system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107621252A (en) * | 2017-09-29 | 2018-01-23 | 洛阳智昊工程科技有限公司 | A kind of disintegrating apparatus rod pin shaft coupling detection means and its detection method |
| CN107656218A (en) * | 2017-11-06 | 2018-02-02 | 湖北汽车工业学院 | Induction heating power failure detects in real time and processing system |
| CN109452183A (en) * | 2018-12-30 | 2019-03-12 | 东北农业大学 | A kind of pig house scraper-type clear excrement equipment with fault detection capability |
-
2015
- 2015-06-10 CN CN201520398274.0U patent/CN204731021U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107621252A (en) * | 2017-09-29 | 2018-01-23 | 洛阳智昊工程科技有限公司 | A kind of disintegrating apparatus rod pin shaft coupling detection means and its detection method |
| CN107621252B (en) * | 2017-09-29 | 2023-07-18 | 洛阳智昊工程科技有限公司 | Rod pin coupler detection device for crushing equipment and detection method thereof |
| CN107656218A (en) * | 2017-11-06 | 2018-02-02 | 湖北汽车工业学院 | Induction heating power failure detects in real time and processing system |
| CN109452183A (en) * | 2018-12-30 | 2019-03-12 | 东北农业大学 | A kind of pig house scraper-type clear excrement equipment with fault detection capability |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151028 Termination date: 20180610 |
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| CF01 | Termination of patent right due to non-payment of annual fee |