CN202141903U

CN202141903U - Pointer-type GPS self-calibration clock

Info

Publication number: CN202141903U
Application number: CN 201120184092
Authority: CN
Inventors: 杨慧凯; 闫明毅
Original assignee: FAW Group Corp
Current assignee: FAW Group Corp
Priority date: 2011-06-02
Filing date: 2011-06-02
Publication date: 2012-02-08
Anticipated expiration: 2021-06-02

Abstract

The utility model relates to a pointer-type GPS (Global Positioning System) self-calibration clock. The self-calibration clock is characterized in that an automobile clock autocorrelation system comprises a clock control unit and a clock motor, wherein the clock control unit comprises a clock signal receiving circuit, a crystal oscillator circuit, a processing circuit and a drive circuit; the clock control unit is connected with a GPS receiving unit through an LIN bus, periodically receives a clock synchronous signal sent by the GPS receiving unit and also connected with a stepping motor; and the stepping motor controls a clock pointer. The pointer-type GPS self-calibration clock has a simple structure, dispenses with a time adjustment switch, has low price, and is more durable, reliable and convenient in use.

Description

Pointer-type GPS self calibration clock

Technical field

The utility model relates to a kind of pointer GPS self calibration clock, is that a kind of automobile is used clock.

Background technology

Along with the development of society, automobile has become the part of people's life, and people are also increasingly high to the requirement of automobile; Vehicle-mounted clock becomes the popular configuration of automobile gradually, and using on the industry now often is electronic type short in size or dot matrix LCD clock, and the pointer clock of seldom counting; LCD clock wherein is not attractive in appearance, reads not intuitively, and they also have a common shortcoming; When error appears in clock, needing the people to go to manual school exactly, use inconvenience.

Summary of the invention

The purpose of the utility model provides a kind of pointer GPS self calibration clock, auto clock system and bearing calibration thereof that can automatic time correction.

The technical scheme of the utility model is achieved in that pointer GPS self calibration clock; It is characterized in that: automatic automobile clock correction system comprises clock control cell and clock motor, and described clock control cell comprises: clock signal receiving circuit, crystal oscillating circuit, treatment circuit and driving circuit; Said clock control cell connects the GPS receiving element through the LIN bus, and clock control cell receives the clock sync signal that the GPS receiving element sends by certain cycle, and clock control cell links to each other with stepper motor, the step motor control clock pointer.

The good effect of the utility model is the timing switch of having cancelled simple in structure, and low price uses more durable, reliable, convenient.

Description of drawings

Fig. 1 is the control module structural drawing of the utility model.

Embodiment

Below in conjunction with accompanying drawing the utility model is done further description: as shown in Figure 1; Pointer-type GPS self calibration clock; It is characterized in that: automatic automobile clock correction system comprises clock control cell and clock motor, and described clock control cell comprises: clock signal receiving circuit, crystal oscillating circuit, treatment circuit and driving circuit; Said clock control cell connects the GPS receiving element through the LIN bus, and clock control cell receives the clock sync signal that the GPS receiving element sends by certain cycle, and clock control cell links to each other with stepper motor, the step motor control clock pointer.

Clock controller links to each other with the GPS receiving element through the LIN bus.After each automobile powers on; The GPS receiving element sends to clock control cell by certain cycle with temporal information; After clock control cell received this time information, the time of indicating with clock itself contrasted, as inconsistent; Then drive stepping motor is adjusted its instruction time, and realization is synchronous with gps time.Behind the electricity, clock control cell utilizes crystal oscillating circuit, treatment circuit and the driving circuit established in it to carry out the clock indication under the automobile.When after automobile does not power on or powers on, not receiving gps time information, the inner crystal oscillating circuit of clock control cell can the generation time signal, when receiving gps time information, just carry out with gps time synchronously.The LIN bus is passing time information not only, can also transmit information backlight, and the realization clock is backlight lights the synchronous of time and brightness with the interior back light system of car.

Claims

1. pointer GPS self calibration clock is characterized in that: automatic automobile clock correction system comprises clock control cell and clock motor, and described clock control cell comprises: clock signal receiving circuit, crystal oscillating circuit, treatment circuit and driving circuit; Said clock control cell connects the GPS receiving element through the LIN bus, and clock control cell receives the clock sync signal that the GPS receiving element sends by certain cycle, and clock control cell links to each other with stepper motor, the step motor control clock pointer.