CN201210054Y

CN201210054Y - Multifunctional GPS navigation apparatus

Info

Publication number: CN201210054Y
Application number: CNU2008200470793U
Authority: CN
Inventors: 程蓉; 刘耀义
Original assignee: HUIZHOU DESAY INDUSTRY DEVELOPMENT Co Ltd
Current assignee: HUIZHOU DESAY INDUSTRY DEVELOPMENT Co Ltd
Priority date: 2008-04-27
Filing date: 2008-04-27
Publication date: 2009-03-18
Anticipated expiration: 2018-04-27

Abstract

The utility model relates to a GPS guidance device with the function of weather report, comprising a main control unit circuit which consists of a central processing unit (CPU), an FLASH program storage and an SDRAM storage; the GPS guidance device also comprises a GPS guidance module, an SD/MMC card, a USB interface unit, two conventional man-machine interfaces of a press button, an LCD display, a power module and a collecting and processing module for weather signals; wherein, the collecting and processing module for weather signals comprises a temperature sensor, a humidity sensor, an air-pressure sensor, an A/D converter, a digital filter and a high-speed clock oscillator. The utility model adds three sensors and the corresponding signal processing units in the original GPS guidance device, thus not only having functions of guidance and multi-media play, also having function of reporting the weather simultaneously, increasing the additional value of the product, bringing great convenience for users, having cost advantage compared with the special weather reporter and catering for the needs of the modern consumers.

Description

A kind of Multifunctional GPS guider

Technical field

The utility model relates to a kind of GPS navigation device, is specifically related to a kind of GPS navigation device with weather forecast function.

Background technology

At present, develop rapidly along with the navigation electronic technology, it is ripe that the global position system GPS technology also is tending towards, the vehicle GPS that is connected in the vehicle body display device from the lead of beginning develops into the GPS that has incorporated up-to-date wireless technology that mentions No. 03205686.9 patent, vehicle body display device, notebook computer and PDA etc. be can be wirelessly connected to, the trouble and the inconvenience that in use bring because of too much transmission link avoided to the user; Develop into the various portable GPS devices that carry display screen again, make you no matter in the city, field, valley, no matter driving, step on bicycle even walking can both be accurately, location promptly.But these GPS devices also only limit to single navigation feature, can not satisfy the consumption demand that modern consumer improves day by day.The audio-visual amusement of mentioning in patents such as 200420117812.6,200520000379.2 of melting is favored for the Multifunctional GPS of one enjoys the consumer with navigation.As seen, realize the diversification of product function, melt practical and amusement, practically and convenient become the modern consumption trend of the times for one.

No matter travel or go out work, people's trip arrives the destination smoothly except the needs navigation, and that is concerned about most may also have weather conditions, and bad weather not only can influence the good mood of our trip, even may cause accident.Portable GPS with weather forecast function just can address this problem, and helps people to understand Changes in weather at any time, is convenient to take measures, and prevents unexpected the generation.

The utility model content

The problem that the utility model need solve provides a kind of easy to carry, has GPS navigation, multimedia simultaneously, and the GPS device of weather forecast function is arranged.

Take following scheme according to above problem the utility model that need to solve: provide a kind of GPS navigation device to comprise the main control unit circuit, form by central processor CPU, FLASH program storage and the SDRAM storer of storing various dynamic datas and weather information; The GPS module is used to receive gps signal, sends microprocessor after the rough handling to; SD/MMC card: be used to store map software and various multimedia file; Usb interface unit is used to download various multimedia files and map software, and is used as the power source charges interface; Conventional man-machine interface comprises that button and LCD show touch screen module, and LCD is used to show Weather information, GPS latitude and longitude information; Power module is for whole device inner function module provides power supply; Weather signal acquisition process unit is used to gather various weather signals, and will send CPU after the signal Processing to.

Described weather signal acquisition process unit comprises temperature sensor, humidity sensor, the baroceptor of direct induction external information; And the A/D converter that is connected with them, with high sampling rate and low sampling resolving power, analog signal conversion is become digital signal; The digital filter that is connected with A/D converter, utilize digital filter to filter most noises, only remain with the signal of usefulness, so not only improved signal to noise ratio (S/N ratio), and can reach the index of high resolution with the low resolution A/D converter, the digital filter output terminal is connected to CPU; And have the high-frequency clock oscillator to be connected with digital filter with A/D converter, for its work provides time parameter.

Each measured weather data can be saved in the SDRAM storer, and the user can be by the query history weather conditions easily of operation touch-screen.

This device adopts WinCE 5.0 system platforms, supports the audio-video document of multiple form to play and picture playing, supports the e-book of TXT form to browse.

Described power module built-in power Management IC can be charged to battery, and exportable charging status information is supplied with for each module of system provides stable, reliable power supply simultaneously.

The utility model is compared special weather forecast machine, and is with low cost, only needs to increase in former GPS navigation device three sensors and corresponding signal process unit.Make it that navigation, multi-media player function not only be arranged, also have real-time weather forecast function simultaneously, promoted added value of product, also, catered to the demand of modern consumer for the user brings bigger convenience.

Description of drawings

Fig. 1 is that functional circuit of the present utility model is formed schematic block diagram; Fig. 2 is that synoptic diagram is formed in the utility model weather signal acquisition process unit; Fig. 3 is a workflow synoptic diagram of the present utility model;

Embodiment

Understanding for the ease of those skilled in the art is described in further detail the utility model below in conjunction with accompanying drawing:

As Fig. 1, the utility model comprises that central processor CPU, FLASH program storage and SDRAM storer, GPS module, SD/MMC card, weather signal acquisition process unit, button, LCD show touch screen module, power module.

As Fig. 2, described weather signal acquisition process unit comprises temperature sensor, humidity sensor, the baroceptor of direct induction external information and the A/D converter that is connected with them, the digital filter that is connected with A/D converter, digital filter output is connected to CPU, and have the high-frequency clock oscillator to be connected with digital filter with A/D converter, for its work provides time parameter.

As Fig. 3, workflow of the present utility model is: power on after the beginning, CPU carries out initialization, enters battery electric quantity then and detects link, if voltage is lower than minimum value (N), then system closedown if voltage is higher than minimum value (Y), then starts the GPS module; Weather signal acquisition process unit is also in work simultaneously, and the meteorologic signal of being returned by sensor acquisition sends CPU after treatment to; CPU constantly detects whether locking signal of GPS module, if locking, LCD shows the latitude and longitude information of locking and the weather data that sends; Then CPU detects cell voltage, as voltage just often (Y), then gets back to the work of GPS module, continues to receive locating information, proceeds the measurement of Weather information simultaneously, (N), then shutdown system when cell voltage is lower than minimum value.

Claims

1, a kind of Multifunctional GPS guider comprises:

The main control unit circuit, comprise central processor CPU, FLASH program storage and store various dynamic datas and weather information the SDRAM storer; And be connected with main control unit respectively, be subjected to the modular unit of main control unit control:

The GPS navigation module is used to receive gps signal, sends CPU after the rough handling to;

The SD/MMC card is used to store map software and various multimedia file;

Usb interface unit is used to download various multimedia files and map software, and is used as the power module charging inlet;

Conventional man-machine interface comprises button and LCD display module;

Power module is for whole GPS device inner function circuit provides power supply;

It is characterized in that: also comprise the weather signal acquisition processing module, be used to gather various weather signals, and will send CPU after the signal Processing to.

2, Multifunctional GPS guider according to claim 1, its feature is in described weather signal acquisition process unit, comprise temperature sensor, humidity sensor, the baroceptor of direct induction external information and the A/D converter that is connected with them, the digital filter that is connected with A/D converter, the digital filter output terminal is connected to CPU, and has the high-frequency clock oscillator to be connected with digital filter with A/D converter.

3, Multifunctional GPS guider according to claim 2, its feature in: also comprise the touch screen module that is connected with CPU.