CN201503628U

CN201503628U - GSM remote saving alarm

Info

Publication number: CN201503628U
Application number: CN2009200044998U
Authority: CN
Inventors: 赵永飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-09-15
Filing date: 2009-09-15
Publication date: 2010-06-09
Anticipated expiration: 2019-09-15

Abstract

The utility model relates to a saving alarm, in particular to a GSM remote saving alarm, which consists of a radio-frequency receiving part, a radio-frequency sending part, a logic control part, an audio-frequency part, a power supply part and other auxiliary parts, wherein the logic control part consists of a central processing unit, memories and relevant peripheral elements, the central processing unit is used for implementing the program and completing the basic receiving and sending processing functions, and the memories are connected through a data wire, an address wire and a control wire. The utility model is characterized in that sound signal output of the audio-frequency part is directly connected with a loudspeaker through a power amplification circuit, and the central processing unit directly converts the audio-frequency signals of the radio-frequency sending part received by an antenna to the loudspeaker. The utility model easily and conveniently solves the problem that people without full capacity for civil acts such as children, old people, some mental patients and the like can not get help from others easily to get in touch with relatives after being missing.

Description

The long-range rescue beacon of a kind of GSM

Technical field

The utility model relates to a kind of rescue beacon, the long-range rescue beacon of a kind of GSM of saying so more specifically.

Background technology

At present, the missing incidents of some no a person of full age and capacity such as children, old age and some mental patients often have generation in the society, owing to can't take care of oneself, can not save oneself again after out of touch with the household, the timely help that also is not easy to obtain well-wisher or police obtains and the getting in touch of relatives, so that tragedy constantly takes place.

At present, contemporary society does not have a kind of universal portable calling for help equipment, has the discrete out of touch thing of many relatives to take place often, after relatives are missing, publish in the newspaper, paste Lost usually, even it is all of no avail to report to the police.

Children, old age and some mental patients for fear of oneself are missing, have the people that mobile phone is bundled on one's body it, and wishing can have certain help in this way after it is missing.But because mobile phone communication need just can be answered by answering key, mobile phone is except very little by conversation sound hands-free simultaneously, therefore be difficult to be found, obtain other people and help, so the effect of calling for help is not very good by other people, and mobile phone is higher as a kind of rescue beacon price, be not easy to obtain to promote.

Summary of the invention

The purpose of this utility model is to provide a kind of cost the lower and practical relatively long-range rescue beacon of GSM, obtains with the household and gets in touch problem to solve other people help of difficult acquisition of the missing back of some no a person of full age and capacity such as present children, old age and some mental patients.

To achieve these goals, the technical solution adopted in the utility model is:

The long-range rescue beacon of a kind of GSM, by the radio frequency receiving unit, the radio-frequency transmissions part, the logic control part, audio-frequency unit, power unit and other slave part are formed, described logic control part is by executive routine and finish the central processing unit of basic transmitting-receiving processing capacity and pass through data line, storer that address wire and control line are connected and related peripheral element constitute, described radio frequency receiving unit, the radio-frequency transmissions part, audio-frequency unit, power unit, storer and other slave part are connected with central processing unit respectively, it is characterized in that: described audio-frequency unit voice signal output directly connects loudspeaker by a power amplification circuit, and described central processing unit directly is transformed into loudspeaker with the radio frequency receiving unit by the sound signal that antenna receives.

Preferably, described radio frequency receiving unit is made up of Z670 antenna switch circuit, low noise high-frequency amplifier circuit, a local oscillation circuit, reception mixing and demodulator circuit, GMSK demodulator circuit, channel decoding circuit, tone decoding circuit, PCM decoding circuit and audio amplifier circuit.

Preferably, described radio-frequency transmissions part is made up of speech iput circuit, audio amplifier circuit, pcm encoder circuit, voice coding circuit, chnnel coding circuit, GMSK modulation circuit, transmission signal generating circuit, pre-arcing road, power amplification circuit, power amplification control circuit and antenna switch circuit.

Preferably, the core of described power unit is made of the control chip N100 with D/A, A/D translation function.

The utility model has reduced keyboard on former mobile phone basis, some other function such as display screen and photograph, greatly reduce cost, and, audio-frequency unit voice signal output of the present utility model directly connects loudspeaker by a power amplification circuit, central processing unit directly is transformed into loudspeaker with the radio frequency receiving unit by the sound signal that antenna receives, so just do not need button to answer, central processing unit is transformed into loudspeaker automatically with incoming information, can be implemented in other local relatives can be by dialing GSM number of the present utility model, this use is novel will connect automatically and be delivered to loudspeaker output by power amplifier, sound is bigger, be easy near the people's help of remote request and inform that its location or request well-wisher help, and so just can more conveniently find its relatives.

Description of drawings

Fig. 1 is a structural principle block diagram of the present utility model;

Fig. 2 is logic of the present utility model/voicefrequency circuit block diagram.

Fig. 3 is a radio circuit block diagram of the present utility model.

Fig. 4 is the flow process figure that transmits of the present utility model.

Fig. 5 is power module figure of the present utility model.

Embodiment

Below in conjunction with drawings and the specific embodiments the utility model will be further described explanation.

As shown in Figure 1, the utility model discloses the long-range rescue beacon of a kind of GSM, by radio frequency receiving unit 2, radio-frequency transmissions part 3, the logic control part, audio-frequency unit 6, power unit 5 and other slave part 7 are formed, described logic control part is by executive routine and finish the central processing unit 1 of basic transmitting-receiving processing capacity and pass through data line, storer 4 that address wire and control line are connected and related peripheral element constitute, described radio frequency receiving unit 2, radio-frequency transmissions part 3, audio-frequency unit 6, power unit 5, storer 4 and other slave part 7 are connected with central processing unit 1 respectively, it is characterized in that: described audio-frequency unit 6 voice signals output directly connects loudspeaker 9 by a power amplification circuit 8, and described central processing unit 1 directly is transformed into loudspeaker 9 with radio frequency receiving unit 2 by the sound signal that antenna receives.

As shown in Figure 2, logic/voicefrequency circuit of the present utility model is that core constitutes with storer D210 that is connected by data line [MCUDA (20:0)], address wire [MCUAD (15:0)] and control line [MEMC (9:0)] and related peripheral element by executive routine with the central processing unit D200 that finishes basic transmitting-receiving processing capacity, central processing unit also links to each other with multimode converter N250, driving interface module N310, and described multimode converter N250 connects microphone and loudspeaker.

The main effect of this partial circuit be according to from radio frequency sending and receiving electric circuit inspection to data, press the monitoring of GSM or DCS standard and control the running of sending and receiving circuit; Simultaneously, receive data and signal that the sending and receiving circuit is sent here, and with the required information that is sent to the base station of user, deliver to transtation mission circuit after digital signal processing circuit is handled, thereby the telephone exchange of realizing mobile phone and mobile telephone system is set up voice conversation and data information exchange.

As shown in Figure 3, radio circuit of the present utility model comprises that radio frequency receiving unit and radio-frequency transmissions partly constitute, and described radio frequency receiving unit is made up of Z670 antenna switch circuit, low noise high-frequency amplifier circuit, a local oscillation circuit, reception mixing and demodulator circuit, GMSK demodulator circuit, channel decoding circuit, tone decoding circuit, PCM decoding circuit and audio amplifier circuit.Described radio-frequency transmissions part is made up of speech iput circuit, audio amplifier circuit, pcm encoder circuit, voice coding circuit, chnnel coding circuit, GMSK modulation circuit, transmission signal generating circuit, pre-arcing road, power amplification circuit, power amplification control circuit and antenna switch circuit.

As shown in Figure 3, radio circuit is a core with the radio frequency processing module, comprises a plurality of wave filters and amplifier.

As shown in Figure 4, (the GSM900 frequency range is 935～960MHz to the high-frequency signal that receives from antenna, the DCS1800 frequency range is 1805～1880MHz) all from the input of the ANT port of duplexer (Z670), after antenna switch circuit is handled, wherein the received signal of GSM900 frequency range is from the GSM RX port output of Z670, and the received signal of DCS1800 frequency range is by the DCS RX port output of Z670.

As shown in Figure 4, sound is after microphone is converted to the simulated voice electric signal, deliver to A3, the B3 pin of multimode converter (N250) through microphone interface (J261, J262) and input coupling capacitance (C263, C262), at first it being carried out audio frequency in N250 inside amplifies, and then the simulated audio signal after amplifying is carried out PCM take a sample, quantize and coding, with analog signal conversion is digital signal, and delivers to central processing unit (D200) by the PCM data bus and handle.

As shown in Figure 5, the core of power unit is made of the control chip N100 with D/A, A/D translation function, and the complete machine operating voltage is provided, and this power unit also has charging control function and reset function.

When the utility model powers up, cell voltage is delivered to pin such as F1, G1, G3, G5, A4, H6, the D2 of power module (N100) by input circuit, after its internal circuit conversion, the trigger voltage from about the E4 pin output 3V of N100 makes trigger end keep high level.When pressing power switch key (ON/OFF), when importing a low level trigger pip to the trigger end of power module (N100), power module (N100) is started working, and gives each circuit supply of mobile phone from following each pin output correspondent voltage respectively.

The utility model need cooperate GSM card of installation to use, and the utility model is simply transformed mobile phone just becomes a kind of emergency equipment that helps society, and the utility model can also add intelligent alarm function by the CPU program.

In a word; above-described only is the preferred implementation of the long-range rescue beacon of a kind of GSM of the utility model; should be understood that; for the person of ordinary skill of the art; under the prerequisite that does not break away from the utility model creation design; can also make some distortion and improvement, these all belong to protection domain of the present utility model.

Claims

1. long-range rescue beacon of GSM, by the radio frequency receiving unit, the radio-frequency transmissions part, the logic control part, audio-frequency unit, power unit and other slave part are formed, described logic control part is by executive routine and finish the central processing unit of basic transmitting-receiving processing capacity and pass through data line, storer that address wire and control line are connected and related peripheral element constitute, described radio frequency receiving unit, the radio-frequency transmissions part, audio-frequency unit, power unit, storer and other slave part are connected with central processing unit respectively, it is characterized in that: described audio-frequency unit voice signal output directly connects loudspeaker by a power amplification circuit, and described central processing unit directly is transformed into loudspeaker with the radio frequency receiving unit by the sound signal that antenna receives.

2. the long-range rescue beacon of a kind of GSM according to claim 1, it is characterized in that described radio frequency receiving unit by Z670 antenna switch circuit, low noise high-frequency amplifier circuit, a local oscillation circuit, receive mixing and demodulator circuit, GMSK demodulator circuit, channel decoding circuit, tone decoding circuit, PCM decoding circuit and audio amplifier circuit are formed.

3. the long-range rescue beacon of a kind of GSM according to claim 2 is characterized in that described radio-frequency transmissions part is made up of speech iput circuit, audio amplifier circuit, pcm encoder circuit, voice coding circuit, chnnel coding circuit, GMSK modulation circuit, transmission signal generating circuit, pre-arcing road, power amplification circuit, power amplification control circuit and antenna switch circuit.

4. the long-range rescue beacon of a kind of GSM according to claim 3 is characterized in that the core of described power unit is made of the control chip N100 with D/A, A/D translation function.