CN203100855U

CN203100855U - Automotive load capacity self-testing device

Info

Publication number: CN203100855U
Application number: CN 201320085041
Authority: CN
Inventors: 谢竹生
Original assignee: Changsha University of Science and Technology
Current assignee: Changsha University of Science and Technology
Priority date: 2013-02-26
Filing date: 2013-02-26
Publication date: 2013-07-31
Anticipated expiration: 2023-02-26

Abstract

The utility model discloses an automotive load capacity self-testing device. The automotive load capacity self-testing device comprises sensor assemblies and a monitoring and warning module, wherein the sensor assemblies consist of infrared sensors and anti-dust devices consisting of sensor shells, rotating electric magnets and anti-dust covers; the monitoring and warning module comprises a voltage-stabilized source, a singlechip, an electric magnet driving unit, an infrared emitting driving unit, a receiving selecting and controlling unit, an A/D (Analog to Digital) conversion unit, an LCD (Liquid Crystal Display) display unit, a keyboard and a warning indicating unit; the sensor assemblies are mounted on a frame close to each wheel suspension of a tested automobile, and the infrared sensors calculate the load capacity of the automobile by testing the distance between the sensors and vehicle axles below the sensors according to pre-stored suspension load corresponding to testing information of the sensors; and when the load capacity exceeds a preset value, the warning indicating unit gives out sound-light warning signals, and the LCD displays the load capacity. According to the automotive load capacity self-testing device, the load capacity of the automobile is indirectly tested in an infrared non-contact distance measurement manner, the reliability is high, the service life is long, and the cost is low; and the problems that the traffic is influenced, the use is inconvenient, and the like, caused by utilizing the conventional detection manner of fixed wagon balance weighing, can be solved.

Description

A kind of carload lot self-measuring device

Technical field

The utility model relates to the automotive safety transport field, particularly relates to a kind of carload lot self-measuring device.

Background technology

In recent years, the traffic hazard that automobile overload causes takes place again and again, and also road pavement has caused quite serious destruction simultaneously.And the detection of carload lot at present often will realize by being fixed near the weighbridge of measuring station, both normal traffic has been brought big problem, has brought inconvenience also for driver and transportation management personnel.Therefore, need a kind of energy carload lot self-measuring device easy, quick and with low cost, with practical value in a hurry.

Summary of the invention

The utility model is intended to overcome above-mentioned the deficiencies in the prior art, a kind of carload lot self-measuring device is provided, it is simple in structure, laying is convenient, use is easy and simple to handle and with low cost, and what can solve effectively that existing fixedly weight bridge weighing detection mode brings influences traffic, uses practical problemss such as inconvenient, that detection efficiency is low.

The utility model provides a kind of carload lot self-measuring device; comprise sensor module and monitoring, alarming module; described sensor module is by infrared sensor with by sensor outer housing; rotary magnet; the dust guard that dust cap constitutes is formed; infrared sensor places the sensor outer housing the inside; sensor outer housing is equipped with the dust cap that rotary magnet drives; dust cap is opened when measuring; be in when not measuring and close sealing state and place inner infrared sensor to avoid dust with protection; the infringement of dirt; described sensor module is installed near the vehicle frame of each wheel suspension of tested automobile; the below is an axletree; distance between infrared sensor survey sensor and the axletree; sensor corresponding with the variable in distance between the axletree the deflection of this tested suspension; there is certain corresponding relation in the suffered load of the deflection of suspension and suspension; the deflection of measuring suspension is the indirect load of measuring suspension, and the difference of the load sum of each suspension was the dead weight capacity of automobile when the load sum of each suspension and automobile were unloaded during lorry loading.Described monitoring, alarming module comprises stabilized voltage supply, single-chip microcomputer, solenoid actuated unit, infrared emission driver element, receives and select control module, A/D converting unit, LCD display unit, keyboard, warning indicating member.When dead weight capacity surpassed setting value, the hummer of warning indicating member and LED sent the sound and light alarm signal, LCD loading display amount.

The utility model adopts the dead weight capacity of the indirect measured automobiles of mode of infrared non-contact distance-measurement, reliability height, long service life and cost are low, automobile can be measured warning in lade or occupant's process, in time eliminate safe hidden trouble, solved that present employed fixedly weight bridge weighing brings influence traffic, use inconvenience, practical problems such as detection efficiency is low, a kind of high efficiency carload lot detection mode is provided.

Description of drawings

Fig. 1 is a schematic block circuit diagram of the present utility model.

Description of reference numerals:

The 1-sensor outer housing; The 2-rotary magnet; The 3-dust cap;

The 4-infrared sensor; The 5-sensor module; 6-monitoring, alarming module;

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

As shown in Figure 1, the utility model provides a kind of carload lot self-measuring device, comprises sensor module 5 and monitoring, alarming module 6.Sensor module 5 is made up of shell 1, rotary magnet 2, infrared sensor 4, dust cap 3, drive dust cap 3 rotations during rotary magnet 2 energisings, dust cap 3 is opened, infrared sensor can be found range, during rotary magnet 2 outages, dust cap 3 cuts out, and makes infrared sensor 4 avoid the infringement of dust, dirt, and whether rotary magnet 2 is switched on and be subjected to Single-chip Controlling.Described sensor module 5 is installed near the vehicle frame of each wheel suspension of tested automobile, the below is an axletree, middle have no occluder, infrared sensor adopts the distance between triangle measurement method principle survey sensor and the axletree, the aanalogvoltage and the measuring distance of infrared sensor output have certain reverse corresponding relation, and distance is far away more, and magnitude of voltage is more little, and certain measurement range is arranged, and the short distance measurement effect is good, precision is high.Sensor corresponding with the variable in distance between the axletree the deflection of this tested suspension, there is certain corresponding relation in the suffered load of the deflection of suspension and suspension, the deflection of measuring suspension is the indirect load of measuring suspension, and the difference of the load sum of each suspension was the dead weight capacity of automobile when the load sum of each suspension and automobile were unloaded during lorry loading.Described monitoring, alarming module 6 comprises stabilized voltage supply, single-chip microcomputer, solenoid actuated unit, infrared emission driver element, receives and select control module, A/D converting unit, LCD display unit, keyboard, warning indicating member.Stabilized voltage supply is actual to be Switching Power Supply, is the needed voltage in each unit in the monitoring, alarming module 6 with the automobile storage battery voltage transitions, and has the desired interference free performance of automobile electronics.The function of A/D converting unit is to select control module to be converted to the digital quantity that single-chip microcomputer can receive successively through receiving the aanalogvoltage of each infrared sensor 4 output.Single-chip microcomputer is the core of monitoring, alarming module 6, and the form with form in its inner nonvolatile memory has the output voltage of each infrared sensor and the corresponding relation data of each suspension load.Single-chip microcomputer receives keyboard instruction, control the distance that each sensor module 5 is measured between infrared sensor and the axletree, calculate the load of each suspension and the dead weight capacity of tested automobile, show, when dead weight capacity surpasses setting value, send the sound and light alarm signal by the warning indicating member by LCD.

Claims

1. carload lot self-measuring device; comprise sensor module (5) and monitoring, alarming module (6); described sensor module (5) is by sensor outer housing (1); rotary magnet (2); infrared sensor (4); dust cap (3) is formed; described monitoring, alarming module (6) comprises stabilized voltage supply; single-chip microcomputer; the solenoid actuated unit; the infrared emission driver element; receive and select control module; the A/D converting unit; the LCD display unit; keyboard; the warning indicating member; it is characterized in that: infrared sensor (4) places sensor outer housing (1) the inside; sensor outer housing (1) is equipped with the dust cap (3) that rotary magnet (2) drives; dust cap (3) is opened when measuring; be in when not measuring and close sealing state and place inner infrared sensor (4) to avoid dust with protection; the infringement of dirt; described sensor module (5) is installed near the vehicle frame of each wheel suspension of tested automobile; the below is an axletree, the distance between infrared sensor (4) survey sensor and the axletree.