CN201212821Y - LED meter for arc shape engineering machine - Google Patents

Abstract

The utility model relates to a circular-arc engineering machinery LED gauge which is characterized in that a control module circuit board which takes a CPU as a processing unit is arranged, stimulation testing signals respectively output by a water-temperature sensor T1, an oil-temperature sensor T2 and an oil-mass sensor L are input into the CPU; an LED display module is arranged, and a digital-quantity output signal of the CPU presents a circular-arc LED display area which stimulates the pointer swing on a display panel through the LED display module. The utility model is strong in quake-proof capacity and is not easy to be damaged, the digital-quantity signal display through adopting a single chip has higher precision, the circular-arc LED display area which stimulates the pointer swing is coincident with the pointer display mode, and the LED display mode is more striking and beautiful on the lightness and color.

Description

Circular arc engineering machinery LED table

Technical field

The utility model relates to the engineering machinery instrument, a kind of engineering machinery instrument that is used for showing parameters such as oil mass, water temperature and oily temperature of more specifically saying so.

Background technology

In engineering machinery, the Displaying Meter of parameters such as oil mass, water temperature and oily temperature is necessary configuration.

In the engineering machinery of using, the instrument dial plate that is used to refer to parameters such as oil mass, water temperature and oily temperature adopts the moving-coil type pointer mostly at present.Mainly there is following deficiency in the mechanical type instrument that this tradition is used:

1, mechanical type meter pointer shock resistance is weak, fragile.

2, electrical parameter is to transmit and control with simulating signal, and precision is difficult to guarantee.

When 3, extraneous light was dark, the pointer of dial plate showed and is difficult to read; And being used for mostly adopting the light source of strong luminous incandescent lamp ﹠ lantern in the dial plate at the pilot lamp that illuminate Various types of data night, its consumed power is big, easy burn-out.

The utility model content

The utility model is for avoiding above-mentioned existing in prior technology weak point, provide a kind of shock resistance by force, not fragile, adopt single-chip microcomputer to carry out the circular arc engineering machinery LED table of the accurate control of digital quantity signal.

The utility model technical solution problem adopts following technical scheme:

The design feature of the utility model circular arc engineering machinery LED table is that setting is the control module wiring board of processing unit with CPU, and cooling-water temperature sensor T1, oil temperature sensor T2 and fuel-quantity transducer L import in the CPU processing unit from the analog detection signal of each output; The LED display module is set, and the digital quantity output signal of CPU processing unit is rendered as the compass LED viewing area of simulated pointer swing on display panel by the LED display module.

Compared with the prior art, the beneficial effects of the utility model are embodied in:

1, the utility model shock resistance is strong, and is not fragile.

2, the utility model on the display module that is made of the LED luminotron, can realize that by single-chip microcomputer High Accuracy Control shows with original associated arguments information integration that shows by discrete component steering needle and pilot lamp.

3, the mode of the compass LED viewing area of the utility model simulated pointer swing and pointer demonstration matches, and the mode that LED shows is more eye-catching, attractive in appearance on light and color and luster.

4, the utility model carries out being connected of simple signal wire between single chip control module and LED display module, and its structure is simpler, cost is lower, and the display device LED in the modular structure is a micro-power device.

Description of drawings

Fig. 1 is the utility model structural representation.

Fig. 2 is the utility model sectional structure synoptic diagram.

Fig. 3 is the utility model circuit theory diagrams.

Number in the figure: 1 is that compass LED viewing area, 2 is LED display module, 3 control module wiring boards, 4 connecting lines.

Below pass through embodiment, and the utility model is described in further detail in conjunction with the accompanying drawings.

Embodiment:

Referring to Fig. 1, Fig. 2 and Fig. 3, the present embodiment setting is the control module wiring board 3 of processing unit with CPU, and cooling-water temperature sensor T1, oil temperature sensor T2 and fuel-quantity transducer L import in the CPU processing unit from the analog detection signal of each output; LED display module 2 is set, the digital quantity output signal of CPU processing unit is rendered as the compass LED viewing area 1 of simulated pointer swing by LED display module 2 on display panel, directly be electrically connected with connecting line 4 between LED display module 2 and control module wiring board 3.

In concrete the enforcement, the related device in the control module comprises on all integrated PCB of the being arranged on control module of the single-chip microcomputer wiring board 3.On LED screen 1, demonstrate various required characters, realize the function that it replaces mechanical indicator.

Claims (1)

1, circular arc engineering machinery LED table, it is characterized in that being provided with CPU is the control module wiring board (3) of processing unit, cooling-water temperature sensor T1, oil temperature sensor T2 and fuel-quantity transducer L import in the CPU processing unit from the analog detection signal of each output; LED display module (2) is set, and the digital quantity output signal of described CPU processing unit is rendered as the compass LED viewing area (1) of simulated pointer swing on display panel by LED display module (2).

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