CN203587806U

CN203587806U - Positioning terminal

Info

Publication number: CN203587806U
Application number: CN201320698122.3U
Authority: CN
Inventors: 吴才聪; 蔡亚平
Original assignee: China Agricultural University
Current assignee: China Agricultural University
Priority date: 2013-11-07
Filing date: 2013-11-07
Publication date: 2014-05-07
Anticipated expiration: 2023-11-07

Abstract

The utility model discloses a positioning terminal. The positioning terminal comprises a GPS positioning module, an acceleration sensor, a power supply, a power supply key and a power supply management module. The acceleration sensor and the power supply key are respectively electrically connected with an input end of the power supply management module. An output end of the power supply management module is electrically connected with the GPS positioning module. The power supply management module is electrically connected with the power supply. The acceleration sensor and the power supply key are arranged on the mobile terminal, and the power supply management module inputs signals according to the acceleration sensor and the power supply key, so that the intelligent control towards the working power supply of the GPS positioning module is realized, and the purposes to save battery energy and to prolong the usage time of the terminal are fulfilled.

Description

Locating terminal

Technical field

The utility model relates to positioning field, particularly, relates to a kind of locating terminal.

Background technology

At present, monitoring position intelligent terminal is mainly located in real time by GPS locating module, while working under weak signal environment, not only can not realize in real time accurately location, and consume a large amount of terminal power supplys owing to carrying out incessantly satellite acquisition.For frequently, the indoor and user alternation of outdoor work environment, need the timely user's of differentiation working environment, and the GPS locating module of unlatching in time, monitoring and interruption terminal.

Prior art is mainly by detecting in real time the motion state of the exercise data judgment device of GPS equipment, or star strategy is searched in formulation according to business characteristic, to determine GPS electric power starting and to close and search star time and number of times.Owing to can not obtaining in time terminal exercise data or can not accurately judging the mobile range of terminal, cause terminal GPS module startup hysteresis or frequent invalid startup, easily cause terminal power supply unnecessary consumption, shorten the terminal operational use time.

Utility model content

The purpose of this utility model is, for the problems referred to above, proposes a kind of locating terminal, saves the energy, extends the terminal advantage of service time to realize.

For achieving the above object, the technical solution adopted in the utility model is:

A kind of locating terminal, comprise GPS locating module, acceleration sensor, power supply, power key and power management module, described acceleration sensor and power key are all electrically connected with the input end of power management module, described power management module output terminal be electrically connected with GPS locating module, described power management module is electrically connected with power supply.

Further, described power management module is single-chip microcomputer or DSP.

Further, the amplifying circuit of connecting between described acceleration sensor and power management module.

The technical solution of the utility model has following beneficial effect:

The technical scheme that this is practical, by acceleration sensor and power key are set on mobile terminal, and by battery management module according to acceleration sensor and power key input signal, GPS locating module working power carried out to Based Intelligent Control, thereby reached, save battery power, extend the terminal object of service time.

Accompanying drawing explanation

Fig. 1 is the theory diagram of the locating terminal described in the utility model embodiment;

Fig. 2 is the electronic circuitry of the amplifying circuit described in the utility model embodiment;

Fig. 3 is the work block diagram of the locating terminal described in the utility model embodiment.

Embodiment

Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein is only for description and interpretation the utility model, and be not used in restriction the utility model.

As shown in Figure 1, a kind of locating terminal, comprise GPS locating module, acceleration sensor, power supply, power key and power management module, acceleration sensor and power key are all electrically connected with the input end of power management module, power management module output terminal be electrically connected with GPS locating module, power management module is electrically connected with power supply.

Wherein, power management module is the intelligent chips such as single-chip microcomputer or DSP.The amplifying circuit of connecting between acceleration sensor and power management module.And control determining program in power management module is existing public technology.

Amplifying circuit is as shown in Figure 2: comprise transport and placing device A1, transport and placing device A2, triode T1 and triode T2, the base stage of triode T1 is connected on direct supply Vs by diode D1 and diode D2, the anodic bonding of diode D1 is in the base stage of triode T1, the negative electrode of diode D1 is connected to the positive pole of direct supply Vs, the negative electrode of diode D2 is connected in the base stage of triode T1, the anodic bonding of diode D2 is at the negative pole of direct supply Vs, resistance in series R1 in the base stage of triode T1, the inter-collector resistance in series R3 of the collector of triode T1 and triode T2 and resistance R 4, resistance R 2 is in parallel with the series circuit that resistance R 3 and resistance R 4 form, the base stage of triode T2 is connected on direct supply Vs by diode D3 and diode D4, the anodic bonding of diode D3 is in the base stage of triode T2, the negative electrode of diode D3 is connected to the positive pole of direct supply Vs, the negative electrode of diode D4 is connected in the base stage of triode T2, the anodic bonding of diode D4 is at the negative pole of direct supply Vs, resistance in series R6 in the base stage of triode T2, the emitter of triode T1 is connected with the inverting input of transport and placing device A1, the output terminal resistance in series R3 of the collector of triode T1 and transport and placing device A1, the in-phase input end of transport and placing device A1 is connected with the in-phase input end of transport and placing device A2, resistance in series R7 and resistance R 8 between the inverting input of the inverting input of transport and placing device A1 and transport and placing device A2, the inter-collector resistance in series R5 of the output terminal of transport and placing device A2 and triode T2.

Its specific works principle is as shown in Figure 3:

(1) the work beginning and ending time parameter of setting according to the system time of terminal and user, judges whether terminal enters working hour, or monitors user and pressed power key, by acceleration sensor perception terminal, had significantly displacement.

(2) obtain GPS locating module status information, as GPS maintains former duty in real-time positioning states, otherwise by controlling power management module, start GPS locating module and carry out satellite acquisition.Search time limit, the inferior counter of search limit are carried out to zero clearing.

(3) state of Real-Time Monitoring GPS locating module, as locate successfully GPS locating module continuous firing, otherwise judge whether the satellite acquisition time reaches the search time limit.

(4) if do not reach the search time limit, GPS locating module continues search of satellite, otherwise judges whether number of satellite increases, if number of satellite increases, continues search of satellite.

(5) if number of satellite does not increase, judge whether to reach search limit time, as do not reach, GPS locating module enters temporary transient dormant state.

(6) if reached search limit time, judge that whether current time is in working hour.If not in working hour, enter long-term dormancy, no longer carry out satellite acquisition trial, until (1) step situation occurs.

(7) if system time in working hour, GPS locating module enters intermittently dormant state.After short-term or long-term dormancy time reach, GPS locating module is attempted carrying out satellite acquisition again, reenters (3) step afterwards.

In sum, the utlity model has following characteristics:

(1) improve the GPS position success rate of terminal,, under varying environment, in conjunction with acceleration sensor, rationally use and search star strategy, can effectively increase GPS locating module and search the number of times of star and location compute; (2) track that reduces the monitoring of terminal real time position is omitted and monitoring blind area; (3) electrical source consumption of saving terminal, extends more than 3 times the working time of ordinary terminal when opening GPS separately, does not affect user and experiences, thereby effectively meet various related application demands.

Finally it should be noted that: the foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, although the utility model is had been described in detail with reference to previous embodiment, for a person skilled in the art, its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.

Claims

1. a locating terminal, it is characterized in that, comprise GPS locating module, acceleration sensor, power supply, power key and power management module, described acceleration sensor and power key are all electrically connected with the input end of power management module, described power management module output terminal be electrically connected with GPS locating module, described power management module is electrically connected with power supply.

2. locating terminal according to claim 1, is characterized in that, described power management module is single-chip microcomputer or DSP.

3. locating terminal according to claim 1 and 2, is characterized in that, the amplifying circuit of connecting between described acceleration sensor and power management module.