Vehicle load weighing sensor on Board Truck Scales

The vehicle load weighing sensor on board truck scales system using GPS, car video system, vehicle weighing system, from the muck car driving speed, driving route, the vehicle's environment, and muck car load weight of several aspects of muck car driver behavior monitoring, so as to achieve the purpose of effective supervision. It is currently the most advanced domestic market, the most effective waste management solutions, the most advanced muck car management system.

The car management system consists of silicon capacitive micro gravity sensor, data acquisition module, vehicle display instrument, GPS module, image acquisition and storage system. The silicon capacitance macro gravity sensors installed in the car, real-time collection truck weight, weight information real-time display in vehicle display instrument and through the GPS positioning transmission module, data sent to the monitoring display terminal. Real-time vehicle image acquisition system and image driving body in front of the car terminal, and stored for future reference.

ZHYQ muck car GPS intelligent management solution

Composition of muck car management system

1,The silicon capacitance macro gravity sensor      

   Responsible for sensing vehicle load weight

   Micro gravity type silicon capacitive sensor, range 5-20T, accuracy 0.5%, output RS485

2, Data collector

Responsible for the weight signal sensor processing, calibration system, responsible for data transmission (transmission to the GPS and display meter).The data collector, DC24V power supply, can handle 4-16 analog signal acquisition, calibration can be done after the vehicle load, The weight Information is transmitted to the GPS via the 232 interface, and the transmission frequency is not less than 100 times per second (adjustable). (Random provider communication protocol)

3, Display gauge

Responsible for real-time display of weight information, the scene shows , this case can not be installed.

Have the tare, and net weight function, LED display, the resolution is good
4,GPS module

Responsible for receiving data acquisition module transmission weight information, and geographic information and the weight information package back to the command center
5,The image acquisition system

Be responsible for the video recording of the surrounding environment of the vehicle, including the condition of the vehicle running, the car body sealing condition, etc. And store the image data.

The system features 1: meet the national standard and the Ministry of Transportation Department

The vehicle monitoring device supports GSM/GPRS or CMDA 1X wireless communication system
Non contact IC card reader;
Level interface, supporting the capacitance level transmitter, for without changing the structure of the vehicle fuel consumption measurement;
The weighing interface, which is used for measuring the load of the vehicle without changing the structure of the vehicle. Up to 4 sensors, high precision;
Support for non positioning blind area and continuous positioning, suitable for satellite signal poor area, to ensure the whole process of vehicle monitoring and accurate mileage statistics ; Convenient software remote upgrade technology.

The System features 2: the use of a combination of positioning, fast and accurate

The system features 3: silicon capacitor macro gravity sensor weighing

The traditional vehicle weighing sensors generally use the strain type weighing sensor or load sensor and their output signals are relatively weak, weak signal of late data amplification processing and data stability caused trouble, and our company's patent product star-silicon capacitance macro gravity sensor solves the this a series of problems.

Technical specifications

Macro silicon capacitive gravity sensor installation

Two or more silicon capacitance macro gravity sensor on each axle and axle of the axle housing in a specific part of the installation, when the vehicle in a cargo loading the cargo weight change, the weight change will cause the corresponding deformation axle and axle housing, sensor can accurately induction to the stress and deformation and the deformation into electronic signals, through cable signal transmission to the weighing controller.

Regardless of the number of vehicles is in static state or in a moving state, no matter what change takes place in the vehicle motion state, regardless of road conditions appear what circumstance, the sensor will timely and accurately the axle and axle housing deformation induced out, weighing controller subsequent processing these signals to lay the authenticity and integrality.

Working principle

Each macro silicon capacitive gravity sensor real-time sensing location of the stress deformation and converted into electrical signal output, Each weighing controller of the signal transmission over the capacitor macro gravity sensor for precise measurement and dynamic processing; At the same time, with the cooperation of the vehicle working condition (driving, braking, steering, backing, lifting and so on), the calculation of the weight of the loaded cargo is completed through the comprehensive algorithm. Considering the randomness of vehicle deformation by each axle and axle in the process of driving, Also recognize the vehicle in motion state and static state of mutual conversion between the axle and the axle deformation and recovery of the complexity of the situation, The on-board weighing system assumes the following two conditions

1)No change in the weight of the vehicle during the driving process.
2)When the vehicle is stopped by a running state, Need to experience a recovery period (about 10 to 30 seconds can be set after each axle and axle force deformation to stabilize). In accordance with such assumptions, When the vehicle is stopped by the driving state, it can not immediately start loading and unloading, the need to wait for a short recovery period, the vehicle weighing system to enter the normal working state, At this point the loading and unloading of goods will be able to correctly reflect the weight of the system loading and unloading of the weight of the results.

When a car is installed after all the vehicle weighing system components, before the first electric work, the car must be empty. It can provide a correct initial working condition to the weighing system. At this time after power on, the controller will automatically confirm the weighing system work zero, calculate the current weight of goods 0. If the calculation of the current weight of goods is not 0, you need to send a "zero confirmation" command to the weighing system. Let it make the current state of the sensors to be recognized as the work of the system zero.

The system features 4:real-time monitoring of the fuel oil level transmitter

Principle:It adopts a high accuracy, high sensitivity, and high stability of the Swiss imported core body and amplifier circuit. The sensitive element and the chip into the stainless steel shell, stainless steel casing to seal welding, waterproof cable with ventilation duct .The sensor back pressure chamber and air Unicom , not affected by the pressure of liquid level measurement, which is the industry standard 4-20mA signal output.

Feature: The product is of high stability, good stability, high quality seal and corrosion resistance . It can be directly put into water, oil and other liquid medium can also be compatible with other mine detection system. Full sealing weld, solid structure, no moving parts, reliability using long life, is the best choice for static measuring mailbox level.

Two silicon capacitance macro gravity sensor installed in each axle or axles axle housing in certain parts of the, each silicon capacitance macro gravity sensor through a signal cable in received in the cab of the weighing controller, then the speed signal line, the ACC power supply line, CAN signal line, auxiliary communication line is inserted into the weighing controller, so that the formation of the complete set of vehicle weighing system. For example, for a 8X4 truck, need to install the 8 silicon capacitor macro gravity sensor and a weighing controller. Auxiliary communication line is connected in vehicle compass / GPS terminal and weighing controller between the dedicated communication line, with the help of the communication line, can be achieved from the monitoring center platform of vehicle weighing system for remote parameter setting and state diagnosis.