CN202448758U - Anti-overload device of bus - Google Patents
Anti-overload device of bus Download PDFInfo
- Publication number
- CN202448758U CN202448758U CN2011205682899U CN201120568289U CN202448758U CN 202448758 U CN202448758 U CN 202448758U CN 2011205682899 U CN2011205682899 U CN 2011205682899U CN 201120568289 U CN201120568289 U CN 201120568289U CN 202448758 U CN202448758 U CN 202448758U
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- micro controller
- controller system
- passenger vehicle
- protection device
- pressure sensor
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Abstract
The utility model discloses an anti-overload device of a bus. The anti-overload device comprises an engine fuel injection system switch and further comprises an infrared sensor arranged at one side of a bus door and a pressure sensor arranged below a pedal of the bus door, wherein the infrared sensor and the pressure sensor are respectively connected with a single-chip microcomputer through A/D conversion modules; the single-chip microcomputer is further connected with an alarm and further connected with the engine fuel injection system switch. When an overload situation happens, the anti-overload device prompts a driver and automatically cuts off a fuel path under the condition that the overload situation is not released. The anti-overload device of the bus has the characteristics of simple structure, convenience in installation and low cost.
Description
Technical field
The utility model belongs to the passenger vehicle auxiliary device, is specifically related to a kind of passenger vehicle overload protection device, and this device can be discerned passenger carriage overloading automatically, and reports to the police and the cut-out oil circuit.
Background technology
Along with the development of society, people's living standard is improving gradually, and communications and transportation has also obtained fast development.Also brought simultaneously traffic accident.At present, safety traffic can not look down upon, especially to commerial vehicle.
A lot of play great traffic accidents, all have some relations, the similar overload protection device that also bibliographical information arranged at present with overload; But also do not have relevant product to emerge, the principle that wherein adopts also has a lot, for example; Camera is installed on car door, and the passenger's that record is got on the bus number treats that the occupant has reached the number of regulation; Closed door then, but actual mechanical process still can not solve overcrowding problem completely, for example near periods, reservoir was poured in the motorcoachs overload of report; Certain school bus limit for tonnage 9 people of kindergarten, real year 64 people finally lead to tragedy.Though the vehicle condition that also exists and run has very big relation, overload is one of immediate cause wherein, and thus, Don't Exceed Weight Limit has very important meaning to reducing the traffic accident incidence effectively.
Summary of the invention
For fear of defective of the prior art or deficiency; The purpose of the utility model is; A kind of passenger vehicle overload protection device is provided, and this device is connected with the automobile fuel-feed system, when the overload situation occurring; Point out to chaufeur, and can under the undissolved situation of overload situation, cut off oil circuit automatically.
To achieve these goals, the utility model adopts following technical scheme to be achieved:
A kind of passenger vehicle overload protection device; Comprise driving engine injection system switch, it is characterized in that, also comprise the infrared pickoff that is installed in car door one side; And the pressure sensor that is installed in car door pedal below; Infrared pickoff is connected with micro controller system through the A/D modular converter respectively with pressure sensor, and micro controller system also is connected with annunciator, and micro controller system also is connected with driving engine injection system switch.
Other characteristics of the utility model are:
Described micro controller system adopts the MC9S12DG256VPV micro controller system of Freescale company.
Described infrared pickoff adopts the D204B pyroelectric infrared sensor of sea, Shenzhen king's senser element Co., Ltd.
Described pressure sensor adopts PLD204E circular plate type force transducer.
Described annunciator is made up of LED lamp and buzzer phone.
The passenger vehicle overload protection device of the utility model has the following advantages:
(1) simple in structure, easy for installation, with low cost.Used element all is general element, need not possess relevant professional knowledge, as long as connect circuit.
(2) stable performance, precision is high.Only need be installed in the supply line of vehicle and can judge accurately whether passenger vehicle overloads.
(3) adaptive capacity is strong, and is simultaneously pointed.Not only can be used for transcontinental coach, more meticulous for child's detection, be particularly useful for preventing the school bus overload.
Description of drawings
Fig. 1 is the structured flowchart of the utility model.
Fig. 2 is the scheme of installation of infrared pickoff and pressure sensor.
Below in conjunction with accompanying drawing and embodiment the utility model is done further to explain.
The specific embodiment
With reference to Fig. 1, present embodiment provides a kind of passenger vehicle overload protection device, comprises driving engine injection system switch; It is characterized in that, also comprise the infrared pickoff that is installed in car door one side, and the pressure sensor that is installed in car door pedal below; Infrared pickoff is connected with micro controller system through the A/D modular converter respectively with pressure sensor; Micro controller system also is connected with annunciator, and micro controller system also is connected with driving engine injection system switch, and micro controller system is by the 5V power supply power supply of vehicle.
In the present embodiment; Micro controller system adopts the MC9S12DG256VPV micro controller system of U.S. Freescale company; This micro controller system is 16 a high-speed microprocessor, is widely used in the Vehicle Electronic Control field, low-cost, High Performance; Multiple integration module and EBI are provided, can in different systems, have used flexibly; Detection module comprises infrared detection unit and pressure sensing cell, and infrared pickoff is two, is installed in car door one side with differing heights respectively, and pressure sensor also is two, is installed in car door pedal below respectively.
Infrared pickoff adopts pyroelectric infrared sensor D204B, be a kind of can the human body emission infrared ray and export the sensor of electric signal, stable work in work, precision is high, ambient background radiation does not have influence to it.Pressure sensing cell adopts PLD204E circular plate type force transducer, this working sensor stable performance, and precision is high, and adaptive capacity is strong, and annunciator adopts LED lamp and buzzer phone, provides light to show and the sound alarm message simultaneously.
The passenger vehicle overload protection device of present embodiment is installed on the passenger vehicle, micro controller system is connected in the cathode power supply line of driving engine injection system switch, power lead is connected with the normally closed contact of electromagnetic switch respectively.When chaufeur was connected ignition lock, device was started working, and D204B pyroelectric infrared sensor and PLD204E circular plate type force transducer begin constantly to detect infrared signal and the pressure signal that passenger vehicle is got on or off the bus, and are sent to micro controller system through the A/D modular converter.
Infrared pickoff is through different setting height(from bottom)s, and can distinguish the passenger is adult or child, and for example, the infrared pickoff 1 among Fig. 2 highly is made as and is lower than the high 0.5m that squats, and infrared pickoff 2 highly is made as 1.2m.Infrared pickoff (1,2) is when all detecting signal, and then micro controller system judges it is that the adult gets on or off the bus; If only infrared pickoff 1 has signal and infrared pickoff 2 no signals, it is that child gets on or off the bus that micro controller system then is judged to be; Detect the difference of signal sequence according to infrared pickoff (1,2), to micro controller system transmission level signal, micro controller system carries out plus-minus counting.
In order to prevent to have among the passenger people to reduce height and to get on the bus, highly be the detection that matches of the infrared pickoff 1 of 0.5m and pressure sensor 3, as if infrared pickoff 1 only signal is arranged; And pressure sensor 3 then is designated as the adult, otherwise thinks child when measuring quality m>=45kg; Then micro controller system is not counted child, makes micro controller system can calculate passenger's on the passenger vehicle quantity X accurately through such setting, simultaneously; Micro controller system also can compare the rated passenger capacity Y of X and passenger vehicle, if X＞Y, micro controller system judges that then passenger vehicle overloads; This moment, micro controller system sent instruction with LED lamp and buzzer phone in annunciator, and the LED lamp is glittering, and buzzer phone will send the warning tones of " please not overloading "; If the warning number of times reaches 3 times and still there is overload in passenger vehicle, will send instruction to driving engine injection system switch, make the normally closed contact of electromagnetic switch break off; Cut off the switch of injection system, make passenger vehicle flame-out, can not exercise; If X≤Y, micro controller system then are judged as not overload of passenger vehicle, micro controller system then can not send instruction to driving engine injection system switch, and passenger vehicle can normally be exercised.
Claims (5)
1. passenger vehicle overload protection device; Comprise driving engine injection system switch, it is characterized in that, also comprise the infrared pickoff that is installed in car door one side; And the pressure sensor that is installed in car door pedal below; Infrared pickoff is connected with micro controller system through the A/D modular converter respectively with pressure sensor, and micro controller system also is connected with annunciator, and micro controller system also is connected with driving engine injection system switch.
2. passenger vehicle overload protection device as claimed in claim 1 is characterized in that, described micro controller system adopts MC9S 12DG256VPV micro controller system.
3. passenger vehicle overload protection device as claimed in claim 1 is characterized in that described infrared pickoff has two, is positioned at the differing heights of car door.
4. passenger vehicle overload protection device as claimed in claim 1 is characterized in that, described infrared pickoff adopts pyroelectric infrared sensor D204B.
5. passenger vehicle overload protection device as claimed in claim 1 is characterized in that, described pressure sensor adopts PLD204E circular plate type force transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205682899U CN202448758U (en) | 2011-12-21 | 2011-12-21 | Anti-overload device of bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205682899U CN202448758U (en) | 2011-12-21 | 2011-12-21 | Anti-overload device of bus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202448758U true CN202448758U (en) | 2012-09-26 |
Family
ID=46864646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205682899U Expired - Fee Related CN202448758U (en) | 2011-12-21 | 2011-12-21 | Anti-overload device of bus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202448758U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103448550A (en) * | 2013-07-26 | 2013-12-18 | 南京工业职业技术学院 | Automatic bus overload alarm device |
| CN104050810A (en) * | 2014-06-13 | 2014-09-17 | 成都易默生汽车技术有限公司 | Passenger car overload detecting system and utilizing method thereof |
| CN109501672A (en) * | 2018-10-17 | 2019-03-22 | 浙江合众新能源汽车有限公司 | A kind of driver and passenger's management system based on recognition of face |
-
2011
- 2011-12-21 CN CN2011205682899U patent/CN202448758U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103448550A (en) * | 2013-07-26 | 2013-12-18 | 南京工业职业技术学院 | Automatic bus overload alarm device |
| CN104050810A (en) * | 2014-06-13 | 2014-09-17 | 成都易默生汽车技术有限公司 | Passenger car overload detecting system and utilizing method thereof |
| CN109501672A (en) * | 2018-10-17 | 2019-03-22 | 浙江合众新能源汽车有限公司 | A kind of driver and passenger's management system based on recognition of face |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120926 Termination date: 20121221 |