CN203601126U - Loading machine anti-collision alarm system - Google Patents
Loading machine anti-collision alarm system Download PDFInfo
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- CN203601126U CN203601126U CN201320848930.3U CN201320848930U CN203601126U CN 203601126 U CN203601126 U CN 203601126U CN 201320848930 U CN201320848930 U CN 201320848930U CN 203601126 U CN203601126 U CN 203601126U
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Abstract
The utility model discloses a loading machine anti-collision alarm system. The loading machine anti-collision alarm system comprises an AT89C2051 control model, the output end of an infrared distance measurement module is connected to the input end of the AT89C2051 control model, the output end of the AT89C2051 control model is connected with the input end of an alarm module and the input end of a display module, and a direct current voltage end of a power module is connected with a voltage end of the AT89C2051 control model, a voltage end of the infrared distance measurement module, a voltage end of the alarm module and a voltage end of the display module. The AT89C2051 control model is used as a kernel, the real-time control and data processing functions of the AT89C2051 control model are combined with an infrared distance measurement technology and a sensor technology to achieve control over anti-collision of a loading machine, and the loading machine anti-collision alarm system is easy to achieve, low in cost, low in power consumption, small in size, capable of meeting requirements of general short distance measurement, and capable of being widely used in small distance measurement, robot detection and vehicle reversing sensors.
Description
Technical field
The utility model relates to a kind of proximity-warning device of loader.
Background technology
Loader is one of main machine of restoration in earth-rock construction in engineering construction.Along with the demand to loader is increasing, reversing total degree constantly increases, and the loader drive person visual field is very limited, collides and the accident of pulling happens occasionally.In order to prevent from colliding and pulling the generation of accident, current loader is equipped with Reverse Sensor, the main safety aid of parking as loader.Reverse Sensor can intuitively show loader peripheral obstacle situation, congratulate the person of sailing attention, but its cost of manufacture is higher thereby remind.
Summary of the invention
In order to overcome the higher defect of existing loader anticollision device Reverse Sensor cost of manufacture, the utility model provides a kind of lower-cost loader anti-collision alarm system based on infrared distance measuring, this loader anti-collision alarm system cost is lower, can remind chaufeur to note the distance between obstacle, thereby avoid the generation of car accident.
Design of the present utility model is: the real-time control of AT89C2051 control module and data processing function are combined with infrared distance measuring technology, realize preferably the obstacle of loader in operational process crashproof, and can pass through charactron range of a signal, obstacle distance and loader are compared at the safety distance of different speed of a motor vehicle sections, can send audible and visible alarm.
According to above-mentioned utility model design, the utility model adopts following technical proposals: a kind of loader anti-collision alarm system based on infrared distance measuring, this system comprises an AT89C2051 control module, the mouth of infrared distance measuring module is connected with the input end of AT89C2051 control module, the mouth of AT89C2051 control module is connected with the input end of alarm module, display module, and the direct current (DC) pressure side of power module is connected with the voltage end of AT89C2051 control module, infrared distance measuring module, alarm module, display module.
Infrared distance measuring module is converted into level signal by the distance detecting and is transferred to AT89C2051 control module, AT89C2051 control module is processed the signal receiving and is compared with the maximum range value of setting, if this distance is less than the maximum range value of setting, AT89C2051 control module sends instruction to alarm module, make the alarm module prompting chaufeur of sounding, distance value is shown by display module simultaneously, make chaufeur grasp at any time the distance between obstacle.
Infrared distance measuring module adopts infrared ray to realize range finding, and changes into level signal, comprises ultrared transmitting and reception.
The principle of work of infrared distance measuring: the infraluminescence pipe of infrared transmitting circuit sends infrared light, receives utilizing emitted light by the photosensitive receiving tube of infrared receiving circuit.Can judge surveyed distance according to radiative power, the light intensity receiving due to adoptor is with changing with the change of distance of luminotron, thereby near distance is receiving light power, a little less than distance receives light.
The appearance of small-sized inexpensive microprocessor (micro controller system), is improved the function of infrared distance measuring sensor, and microprocessor can improve range accuracy.Utilize micro controller system for the loader anti-collision alarm system of basic AT89C2051 control module and the making of infrared ray feature can effectively prevent that loader is wounded in the time moveing backward, scratch, improved the safety of driving.
The utility model combines the real-time control of AT89C2051 control module and data processing function with infrared distance measuring technology, sensor technology, realize preferably the obstacle of loader in operational process crashproof, and can pass through charactron range of a signal, obstacle distance and loader are compared at the safety distance of different speed of a motor vehicle sections, can send audible and visible alarm.
The utility model compared with prior art, there is following apparent substantive distinguishing features and advantage: the utility model is take AT89C2051 as core, the real-time control of AT89C2051 control module and data processing function are combined with infrared distance measuring technology, sensor technology and realize the control crashproof to loader, realize simple, cost is low, low in energy consumption, volume is little, energy meets the general closely requirement of range finding, can be widely used in small distance range finding, robot detection, vehicle backing radar.
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
Accompanying drawing explanation
Fig. 1 is the electrical block diagram of an embodiment of the present utility model.
Fig. 2 is the AT89C2051 control module pinouts in Fig. 1.
Fig. 3 is the transmission circuit schematic diagram of the infrared distance measuring module in Fig. 1.
Fig. 4 is the acceptor circuit schematic diagram of the infrared distance measuring module in Fig. 1.
Fig. 5 is the alarm module schematic circuit diagram in Fig. 1.
Fig. 6 is the display module schematic circuit diagram in Fig. 1.
Fig. 7 is the power module circuitry schematic diagram in Fig. 1.
Fig. 8 is the implementing procedure figure of Fig. 1.
The specific embodiment
In Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 and Fig. 7, the mouth Vin of infrared distance measuring module 2 is connected with the input end P1.0 of AT89C2051 control module 1, and the mouth P2.0 of AT89C2051 control module 1 is connected with the input pickup resistance R10 of alarm module 3.Mouth P2.7 ~ the P2.4 of AT89C2051 control module 1 respectively order is connected with input pickup resistance R12, R13, R14, the R15 of display module 4.The voltage end VCC of power module 5 is connected with voltage end VCC, the infrared transmitting circuit of infrared distance measuring module 2 and the voltage end VCC of infrared receiving circuit, the voltage end VCC of alarm module 3, the voltage end VCC of display module 4 of AT89C2051 control module 1 respectively.Power module 5 provides power supply for AT89C2051 control module 1, infrared distance measuring module 2, alarm module 3, display module 4.
In Fig. 2, the core component of AT89C2051 control module 1 is single chip computer AT 89C2051, is used for processing the level signal of range finder module transmission, and controls alarm module 3 and display module 4.AT89C2051 is 8 micro controller systems of low voltage, high-performance CMOS that American ATMEL is produced, sheet include 2k bytes can be repeatedly erasable read-only program memory PEROM and the random data memory RAM of 128bytes, device adopts the high density of atmel corp, nonvolatile storage technologies to produce, compatibility standard MCS-51 instruction repertoire, 8 central process units of sheet built-in general-purpose and Flash memory cell, AT89C2051 micro controller system is widely used in electronic product.
Main pin function is as follows:
| | title | function | |
| 9 | rST | reset pin, occurs on pin that the high level of 2 machine cycles will make monolithic processor resetting. | |
| 10-17 | p3 mouth | with 7 two-way I/O ports of internal pull-up resistor, when P3 mouth is done input port use, because there is pull-up resistor inside, those pins that dragged down by outward sign can be exported an electric current. | |
| 18 | xTAL2 | the mouth of oscillating circuit in sheet | |
| 19 | xTAL1 | the input end of oscillating circuit in |
|
| 20 | gND | ground | |
| 1-8 | |
8 two-way I/O ports, wherein P1.2～P1.7 pin is with internal pull-up resistor, and P1.0 and P1.1 require external pull-up resistor.P1.0 and P1.1 also input (AIN0) and anti-phase input (AIN1) as the homophase of accurate analog comparator in sheet respectively. | |
| 40 | vCC | power supply input, connects 5V power supply | |
| 21-28 | |
8 two-way I/O mouths with internal pull-up resistor, can drive 4 TTL logic gates, to port one writing, by internal pull-up resistor, port are moved to high level, can make input port and use. | |
| 32-39 | p0 mouth | one group of two-way I/O mouth of 8 open-drain types, i.e. multiplexing mouthful of address/data bus.As the delivery port used time, every potential energy drives 8 TTL logic gates, can be used as high resistance input end to port one writing. | |
| 29 | pSEN | program stores and allows |
|
| 30 | aLE | in the time of access external program memory or data memory, output pulse is for the least-significant byte byte of latch address. | |
| 31 | eA/VPP | external reference allows |
Infrared distance measuring module is converted into level signal by the distance detecting and is transferred to AT89C2051 control module 1, AT89C2051 control module 1 is processed the signal receiving and is compared with the maximum range value of setting, if this distance is less than the maximum range value of setting, AT89C2051 control module 1 sends instruction to alarm module 3, make the alarm module 3 prompting chaufeur of sounding, distance value is shown by display module 4 simultaneously, make chaufeur grasp at any time the distance between obstacle.
Infrared distance measuring module 2 comprises infrared transmitting circuit and infrared receiving circuit.
In Fig. 3, infrared transmitting circuit is by a simple total radio amplifier and a module forming as the transistor circuit of switch.
The positive pole of infrarede emitting diode LED meets the voltage end VCC of power module 5, the negative pole of infrarede emitting diode LED is connected to the collecting electrode of total radio amplifier aerotron G1, the base stage of the aerotron G1 of total radio amplifier is through the first resistance R 1, the first capacitor C 1 ground connection, the base stage of total radio amplifier aerotron G1 connects the negative pole of diode D, and the emitter of total radio amplifier aerotron G1 connects the positive pole of diode D through the second resistance R 2.
The emitter of switch triode G2 is connected to the positive pole of diode D, is connected to the 4th resistance R 4 between the collecting electrode of switch triode G2 and base stage, and the base stage of switch triode G2 meets the input end P1.0 of AT89C2051 control module through the 3rd resistance R 3.
In the time that control pin Vin has signal input, switch triode G2 conducting, whole circuit turn-on simultaneously, infrarede emitting diode LED launches infrared light.
Infrared emitting principle of work: infrarede emitting diode LED is connected to the collecting electrode of total radio amplifier aerotron G1, with base stage and the emitter diode D that joins.The pin P1.0 that controls pin Vin and AT89C2051 control module 1 joins.In the time that control pin has signal input, the aerotron conducting of control circuit, whole circuit turn-on simultaneously, infrarede emitting diode LED launches infrared light.
In Fig. 4, the core component of infrared receiving circuit is infrared pickoff TX05D, for receiving the infrared light reflecting, the positive voltage terminal Vcc of infrared pickoff TX05D connects the voltage end VCC being connected with power module 1 by slide rheostat RP, the direct ground connection of negative voltage side In of infrared pickoff TX05D, the base stage B of the 3rd aerotron G3 connects the mouth Out of infrared pickoff TX05D by the first resistance R 1, the emitter E of the 3rd aerotron G3 connects the two-way I/O port P1.4 of AT89C2051 control module 1, and by current-limiting resistance R2 connection+5V direct supply VCC, the direct ground connection of collecting electrode C of the 3rd aerotron G3, the two ends of the first resistance R 1 are respectively by the first capacitor C 1, the second capacitor C 2 ground connection.
Infrared receiver principle of work: in the time of circuit working, transmission circuit is outwards launched infrared ray, acceptor circuit receives the infrared ray returning, by P1.4 mouth, data are flowed to AT89C2051 control module 1, AT89C2051 control module 1 will be converted into distance after this data processing, then by this distance and the distance versus of setting, if be less than the distance of setting, AT89C2051 control module 1 will send instruction to warning circuit, make the warning circuit prompting chaufeur of sounding.
Inevitably there are multiple blind areas in single infrared pickoff, if adopt multiple infrared pickoffs just can reduce the quantity of blind area.Because the price of infrared pickoff is all very low, it is feasible therefore adopting many cover infrared pickoffs.
In Fig. 5, this alarm module 3 is control circuits that an aerotron G4 and LED 2 form, and aerotron G4 is a positive-negative-positive transistor, and resistance R 6, resistance R 10 are current-limiting resistance.The base stage B of aerotron G4 is connected with the pin P2.0 of AT89C2051 control module 1 by resistance R 10, the emitter E of aerotron G4 connects one end of annunciator Y and the negative voltage side of LED 2, the voltage end VCC of another termination power module 5 of annunciator Y, the direct ground connection of collecting electrode C of aerotron G4, the positive voltage terminal of LED 2 is connected with the direct current (DC) pressure side VCC of power module 5 by current-limiting resistance R6.
In the time of the pin P2.0 of AT89C2051 control module 1 mouth output high level, aerotron G4 cut-off, now because the pin P2.0 of AT89C2051 control module 1 is high level, LED 2 does not have electric current to flow through with annunciator Y, be that LED 2 does not work, annunciator Y does not ring; In the time of the pin P2.0 of AT89C2051 control module 1 mouth output low level, aerotron G4 conducting, LED and annunciator Y have electric current to flow through, and LED 2 is bright, and annunciator Y sounds.
Infrared receiving sensor receives the infrared light reflecting, the voltage of changing by light intensity can be judged the distance between loader and obstacle, in the time that the distance between loader and obstacle arrives danger range, realize by software programming, by a voltage signal of mouth P2.0 mouth output of AT89C2051 control module 1, at this moment PNP aerotron conducting, has electric current to flow through annunciator Y, makes annunciator Y send alerting signal.
In Fig. 6, pin P2.7～P2.4 mouth output signal of display module 4 and AT89C2051 control module 1 is controlled the position of charactron NT, the pin 40 of AT89C2051 control module 1 is connected with the pin one of A/D conversion chip AD, the input pin 2 ~ 9 of A/D conversion chip AD connects respectively the pin 39 ~ 32 of AT89C2051 control module 1, delivery port P0.6 after AD conversion, P0.7, P0.2, P0.1, P0.0, P0.5, P0.4, P0.3 connects respectively a ~ h input port of charactron NT, aerotron Q1, Q2, Q3, the emitter E of Q4 all directly meets the direct current (DC) pressure side VCC of power module 5, aerotron Q1, Q2, Q3, the base stage B of Q4 is respectively by current-limiting resistance R12, R13, R14, R15 is connected with pin P2.7 ~ P2.4 mouth of AT89C2051 control module 1, aerotron Q1, Q2, Q3, the collecting electrode C of Q4 connects respectively the control end S1 of charactron NT, S2, S3, S4, when pin P2.7 ~ P2.4 mouth of AT89C2051 control module 1 is high level, aerotron Q1, Q2, Q3, Q4 cut-off, control end S1～S4 of charactron NT is low level, charactron NT position gating, when pin P2.7 ~ P2.4 mouth of AT89C2051 control module 1 is low level, aerotron Q1, Q2, Q3, Q4 conducting, control end S1～S4 of charactron NT is high level, pin P2.7 ~ P2.4 poll tax on children of AT89C2051 control module 1 is given to high potential or active potential and can select the charactron of coordination not bright.
In Fig. 7; power module 5 adopts circuit of three-terminal voltage-stabilizing integrated LM7805; form the required peripheral cell of constant voltage power suspply with circuit of three-terminal voltage-stabilizing integrated LM7805 series circuit of three-terminal voltage-stabilizing integrated few; inside circuit also has overcurrent, overheated and adjust the protective circuit of pipe; it is reliable, convenient to use, and low price.
In Fig. 8, specific works process: start the anticollision device line parameter initialization of going forward side by side, infrared distance measuring module transmitting infrared ray runs into obstacle and can return, judge whether to receive and return to infrared ray, and process and calculate distance by control module, judge whether to be less than the minor increment of setting, if be less than minor increment, control module sends instruction to annunciator, produce sound and light alarm, and by display module range of a signal, if be not less than minor increment,, directly by display module range of a signal, remind the chaufeur moment to note keeping the distance with obstacle.
Claims (2)
1. a loader anti-collision alarm system, this loader anti-collision alarm system comprises an AT89C2051 control module, it is characterized in that: the mouth of infrared distance measuring module is connected with the input end of AT89C2051 control module, the mouth of AT89C2051 control module is connected with the input end of alarm module, display module, and the direct current (DC) pressure side of power module is connected with the voltage end of AT89C2051 control module, infrared distance measuring module, alarm module, display module.
2. loader anti-collision alarm system according to claim 1, it is characterized in that: infrared distance measuring module comprises infrared transmitting circuit and infrared receiving circuit, the positive pole of the infrarede emitting diode of infrared transmitting circuit connects the voltage end of power module, the negative pole of infrarede emitting diode is connected to the collecting electrode of total radio amplifier aerotron, the base stage of the aerotron of total radio amplifier is through the first resistance, the first capacity earth, the base stage of total radio amplifier aerotron connects the negative pole of diode, the emitter of total radio amplifier aerotron connects the positive pole of diode through the second resistance, the emitter of switch triode is connected to the positive pole of diode, between the collecting electrode of switch triode and base stage, be connected to the 4th resistance, the base stage of switch triode connects the input end of AT89C2051 control module through the 3rd resistance, the positive voltage terminal of the infrared pickoff of infrared receiving circuit connects the voltage end being connected with power module by slide rheostat, the direct ground connection of negative voltage side of infrared pickoff, the base stage of the 3rd aerotron connects the mouth of infrared pickoff by the first resistance, the emitter of the 3rd aerotron connects the two-way I/O port of AT89C2051 control module, and by connect+5V of current-limiting resistance direct supply, the direct ground connection of collecting electrode of the 3rd aerotron, the two ends of the first resistance are respectively by a capacity earth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320848930.3U CN203601126U (en) | 2013-12-23 | 2013-12-23 | Loading machine anti-collision alarm system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320848930.3U CN203601126U (en) | 2013-12-23 | 2013-12-23 | Loading machine anti-collision alarm system |
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| CN203601126U true CN203601126U (en) | 2014-05-21 |
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| CN201320848930.3U Expired - Fee Related CN203601126U (en) | 2013-12-23 | 2013-12-23 | Loading machine anti-collision alarm system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104175952A (en) * | 2014-05-26 | 2014-12-03 | 上海大学 | Automobile anti-collision air cushion device |
| CN105815863A (en) * | 2016-05-18 | 2016-08-03 | 青岛大学 | Intelligent cap capable of giving infrared alarm when encountering obstacles |
| CN105824026A (en) * | 2016-05-18 | 2016-08-03 | 青岛大学 | Combined handheld obstacle-encountering alarm mobile phone holder |
| CN105847475A (en) * | 2016-05-18 | 2016-08-10 | 青岛大学 | Combined obstacle meeting alarm phone |
| CN105911547A (en) * | 2016-05-18 | 2016-08-31 | 青岛大学 | Combined type obstacle-encountering warning intelligent cap |
| CN105954757A (en) * | 2016-05-18 | 2016-09-21 | 青岛大学 | Infrared hand-held obstacle alarm mobile phone support |
| CN115320533A (en) * | 2022-08-17 | 2022-11-11 | 重庆交通职业学院 | Building site robot that intelligence was built |
| CN117060335A (en) * | 2023-10-12 | 2023-11-14 | 联合瓦特技术有限公司 | Generating set electricity generation emergency protection circuit |
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2013
- 2013-12-23 CN CN201320848930.3U patent/CN203601126U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104175952A (en) * | 2014-05-26 | 2014-12-03 | 上海大学 | Automobile anti-collision air cushion device |
| CN105815863A (en) * | 2016-05-18 | 2016-08-03 | 青岛大学 | Intelligent cap capable of giving infrared alarm when encountering obstacles |
| CN105824026A (en) * | 2016-05-18 | 2016-08-03 | 青岛大学 | Combined handheld obstacle-encountering alarm mobile phone holder |
| CN105847475A (en) * | 2016-05-18 | 2016-08-10 | 青岛大学 | Combined obstacle meeting alarm phone |
| CN105911547A (en) * | 2016-05-18 | 2016-08-31 | 青岛大学 | Combined type obstacle-encountering warning intelligent cap |
| CN105954757A (en) * | 2016-05-18 | 2016-09-21 | 青岛大学 | Infrared hand-held obstacle alarm mobile phone support |
| CN115320533A (en) * | 2022-08-17 | 2022-11-11 | 重庆交通职业学院 | Building site robot that intelligence was built |
| CN117060335A (en) * | 2023-10-12 | 2023-11-14 | 联合瓦特技术有限公司 | Generating set electricity generation emergency protection circuit |
| CN117060335B (en) * | 2023-10-12 | 2024-01-16 | 联合瓦特技术有限公司 | Generating set electricity generation emergency protection circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140521 Termination date: 20161223 |
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| CF01 | Termination of patent right due to non-payment of annual fee |