CN201355272Y

CN201355272Y - Color display weightometer of loader

Info

Publication number: CN201355272Y
Application number: CNU2009200886708U
Authority: CN
Inventors: 杨建春
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-02-25
Filing date: 2009-02-25
Publication date: 2009-12-02
Anticipated expiration: 2019-02-25

Abstract

The utility model relates to a color display weightometer of a loader, which effectively overcomes the problems of expensive price, inconvenient use and poor effect and the like of the weightometer of the loader. The technical solution is as follows: a shell and a control circuit in the shell are included; the shell is composed of a lower shell and an upper cover that is embedded with a color display screen in the front; the upper surface of the lower shell is provided with a keyboard and a printer paper outlet; the control circuit has the structure that a master CPU operation processing unit is connected with a slave CPU operation processing unit, a keyboard input unit, a printing unit, a word stock, a memory unit, a clock unit, a GPRS communication unit, a USB memory unit, a color display unit and a power supply unit through a lead; the slave CPU operation processing unit is connected with an A/D converting unit through a lead and externally connected with a temperature sensor and a position sensor through a socket; and the A/D converting unit is connected with a big chamber pressure sensor and a small chamber pressure sensor through the socket. The color display weightometer is novel and unique and has simple structure, low cost, convenient use, good effect and remarkable economic and social benefits.

Description

Shovel loader colour display screen weighing instrument

One, technical field

The utility model relates to electrical equipment, particularly a kind of shovel loader colour display screen weighing instrument.

Two, background technology

The shovel loader electronic scales is made up of weighing instrument, pressure transducer, temperature sensor.Conventional instrument is made up of simple hardware circuit; Thereby instrument is sent data here according to each sensor and is handled and show the weight of weighing, and function ratio is more single, data processing machineryization, low precision; The instrument demonstration mostly is black and white screen or the digital demonstration of segmentation, poor visual effect greatly; The gained data of weighing go out note with simple printer prints, can not in time be reflected in client's hand; Import shovel loader electronic scales costs an arm and a leg, and the demonstration of interface menu foreign language, and using needs staff training, brings very big inconvenience to the user, and therefore, it is imperative that the weighing-appliance of shovel loader improves with innovation.

Three, utility model content

At above-mentioned situation, for overcoming the prior art defective, the purpose of the utility model just provides a kind of shovel loader colour display screen weighing instrument, can effectively solve the shovel loader weighing instrument costs an arm and a leg, use problems such as inconvenience and weak effect, the technical scheme of its solution is: the control circuit that includes housing and Qi Nei, housing is made of lower house and loam cake, the loam cake front portion is inlaid with colorful display screen, face has keyboard and printer paper out opening on the lower house, and said control circuit is that the host CPU operation processing unit is connected with the operation processing unit from CPU through lead, the keyboard input block, print unit, character library and storage unit, clock unit, the GPRS communication unit, the USB storage unit, color display unit and power supply unit; Connect the A/D converting unit and through socket external temperature sensor, position transducer from the CPU operation processing unit through lead; The A/D converting unit links to each other with big cavity pressure sensor, loculus pressure transducer through socket.The utility model is simple in structure, and novel unique, cost is low, and is easy to use, effective, and economic and social benefit is remarkable.

Four, description of drawings

Fig. 1 is a front view of the present utility model.

Fig. 2 is a rear view of the present utility model.

Fig. 3 is a control circuit connection layout of the present utility model.

Five, embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated.

Shown in Fig. 1,2,3, the utility model includes the control circuit of housing and Qi Nei, housing is made of lower house 1 and loam cake 2, the loam cake front portion is inlaid with colorful display screen 4, face has keyboard 6 and printer paper out opening 5 on the lower house, and said control circuit is that host CPU operation processing unit 16 is connected with from CPU operation processing unit 17, keyboard input block 19, print unit 20, character library and storage unit 21, clock unit 22, GPRS communication unit 23, USB storage unit 24, color display unit 25 and power supply unit 26 through lead; Connect A/D converting unit 18 and through socket external temperature sensor 29, position transducer 30 from CPU operation processing unit 17 through lead; A/D converting unit 18 links to each other with big cavity pressure sensor 27, loculus pressure transducer 28 through socket.

In order to guarantee result of use, said loam cake 2 is contained in the upper back of lower house 1 through rotating shaft 15, constitutes and rotates folding streamline structure, time spent is opened loam cake, and the time spent can not cover loam cake on lower house, to reduce volume, and can protect colorful display screen, be beneficial to carry and deposit conveniently; There are power switch 12, GPRS antenna 11 and position transducer interface 14 side by side, pressure transducer 13 in said lower house 1 rear portion, there are USB interface 9, power interface 10, female nine core serial interfaces 7, public nine core serial interfaces 8 in lower house 1 one sides, and the lower house opposite side has GSM card plug (not indicating among the figure); Keyboard 6 facial on the said lower house has demonstration backlight, can know when guaranteeing that light is dark the content of discerning on the keyboard, keyboard digital 0-9, printing, license number are arranged respectively, establish inscribe head, the weight of limiting, paper feed, reset, be provided with, confirm, cancel, ← (non-title), ↑ (lorry), → (other), ↓ (train), F1 function key.

Said host CPU operation processing unit 16 adopts the integrated circuit (IC) chip of ATMEGA128L model, adopt the integrated circuit (IC) chip of ATMEGA64L model from CPU operation processing unit 17, A/D converting unit 18 is selected the integrated circuit (IC) chip of CS5532 model for use, character library and storage unit 21 adopt the integrated circuit (IC) chip of AT45DB161D model, print unit 20 adopts the integrated circuit (IC) chip of 74LC04A model, clock unit 22 adopts the integrated circuit of DS1302 model, color display unit 25 is selected 256 look 480X234 dot matrix (being the display screen 4 among Fig. 1) for use, and power supply unit 26 adopts the integrated circuit of LM2576 model.

Working condition of the present utility model is: big cavity pressure sensor is installed on the pipeline in the high-low pressure chamber of any oil cylinder in two power arm lift cylinders of shovel loader, temperature sensor and loculus pressure transducer, the voltage and current signal of pressure transducer passes through the A/D converting unit respectively, the position transducer that cooperates rising arm and fixed arm, deliver to and carry out calculation process such as digital filtering from the CPU operation processing unit, the signal of temperature sensor is also delivered to simultaneously from CPU operation processing unit, all signals that need gather are delivered to the host CPU operation processing unit after gathering from the CPU operation processing unit, show at color display unit, and character library and storage unit are stored, according to client's needs, utilization keyboard input block, can carry out the time by print unit 5, Description of Goods, weight, data such as railway carriage number are printed, can also deposit USB flash disk by the USB storage unit, store by GPRS communication unit strange land.

The master-slave cpu collaborative work.From the collecting work of CPU operation processing unit 2 pressure charge sensor signals, temperature sensor signal, position sensor signal, and do digital filtering, these signals are merged to handle deliver to the host CPU demonstration.Operations such as the 1 responsible weight demonstration of host CPU operation processing unit, USB storage, GPRS transmission and zero setting, information input, parameter are provided with.Master and slave CPU branch is opened, and can allow and gather more data if having time from CPU, and lot of data guarantees the precision of shovel loader weighing system.Host CPU corresponding keyboard input timely makes user's operation handy.

The utility model adopts chromatic liquid crystal screen to show, Presentation Function is strong, good visual effect.Main frame is the folding airflow design, (as Fig. 2) attractive in appearance, easy to use; Main frame is a microcomputerized control, and is intelligent high, and dynamically sampling and fuzzy algorithm are adopted in program design, realize dynamic calibration and dynamic weighing; The data of weighing can be exported by serial ports, also can pass through the gprs system wireless transmission; But keyboard input alphabet, numeral, the full Chinese of input methods such as also available phonetic, region-position code input; But the shovel loader data of at every turn weighing can be measured, be write down, transmit to USB storage, to make things convenient for the demand of user strange land to data.

Owing to used temperature sensor, current hydraulic fluid temperature and pulling speed all to be presented in the display screen, according to temperature and speed to the weight compensation of weighing.

The utility model is mounted in the autoelectrinic weighing device on the walking machines such as shovel loader.Its principle is to weigh by the oil pressure of measuring lift cylinder.The mode of weighing is a dynamic weighing, promptly weighs in the swing arm lifting process and adds up.Swing arm need not to stop at certain position in lifting process.

The utility model shows the weight of material in each tipping bucket, and the cumulative weight of the material of pack into truck or train.When tipping bucket is promoted to eminence, weight of material in the bucket is by weighing automatically, and its weight deepens to be presented on the display screen, and at this moment the weight in the tipping bucket just is accumulated on the cumulative weight value of display screen, the tipping bucket upset is discharged in truck or the train material then, and tipping bucket is empty bucket-shaped attitude.

The utility model is furnished with 256 look 480X234 graphic lcd display screens, and LCD screen is big, and the light of having powerful connections, and is applicable to operation at night or tunneling, as the underground loader weighing of underground coal mine.The weight and cumulative weight of display screen material in showing tipping bucket, also be shown in the relevant information content of weighing, as buying the Business Name of material, the license number of truck or train, material variety etc.Also can show instant time and date, and the loading limit of truck or train can be set.

The utility model is with the GPRS remote transmission function. It utilizes the GSM network that the input of weighing is carried out Transmission and possesses the functions such as record, demonstration, printing, inquiry, possess distance, expense low, non-maintaining, The bit error rate low (＜10e-6), practicality is good, and is easy for installation, volume is little, is convenient to the advantages such as mobile. The user can Data are gathered, show, inquiry is printed, and tabulation is put on record etc.

Claims

1, a kind of shovel loader colour display screen weighing instrument, include the control circuit of housing and Qi Nei, it is characterized in that, housing is made of lower house (1) and loam cake (2), the loam cake front portion is inlaid with colorful display screen (4), face has keyboard (6) and printer paper out opening (5) on the lower house, said control circuit is that host CPU operation processing unit (16) is connected with from CPU operation processing unit (17) through lead, keyboard input block (19), print unit (20), character library and storage unit (21), clock unit (22), GPRS communication unit (23), USB storage unit (24), color display unit (25) and power supply unit (26), connect A/D converting unit (18) and through socket external temperature sensor (29) from CPU operation processing unit (17) through lead, position transducer (30), A/D converting unit (18) is through the together big cavity pressure sensor (27) of socket, loculus pressure transducer (28) links to each other.

2, shovel loader colour display screen weighing instrument according to claim 1 is characterized in that, said loam cake (2) is contained in the upper back of lower house (1) through rotating shaft (15), constitutes to rotate folding streamline structure.

3, shovel loader colour display screen weighing instrument according to claim 1, it is characterized in that, there are power switch (12), GPRS antenna (11) and position transducer interface (14) side by side, pressure transducer (13) in said lower house (1) rear portion, there are USB interface (9), power interface (10), female nine core serial interfaces (7), public nine core serial interfaces (8) in lower house (1) one side, and the lower house opposite side has the GSM card plug.

4, shovel loader colour display screen weighing instrument according to claim 1, it is characterized in that, keyboard (6) facial on the said lower house has demonstration backlight, guarantee know when light is dark the content of discerning on the keyboard, keyboard has digital 0-9, printing, license number respectively, establish inscribe head, the weight of limiting, paper feed, reset, be provided with, confirm, cancel, ←, ↑, →, ↓, the F1 function key.

5, shovel loader colour display screen weighing instrument according to claim 1, it is characterized in that, said host CPU operation processing unit (16) is the integrated circuit (IC) chip of ATMEGA128L model, from CPU operation processing unit (17) is the integrated circuit (IC) chip of ATMEGA64L model, A/D converting unit (18) is the integrated circuit of CS5532 model, character library and storage unit (21) are the integrated circuit (IC) chip of AT45DB161D model, print unit (20) is the integrated circuit of 74LC04A model, clock unit (22) is the integrated circuit (IC) chip of DS1302 model, color display unit (25) is 256 look 480X234 dot matrix, and power supply unit (26) is the integrated circuit of LM2576 model.