CN202134081U - Low power positioning falling alarm - Google Patents
Low power positioning falling alarm Download PDFInfo
- Publication number
- CN202134081U CN202134081U CN201120195699U CN201120195699U CN202134081U CN 202134081 U CN202134081 U CN 202134081U CN 201120195699 U CN201120195699 U CN 201120195699U CN 201120195699 U CN201120195699 U CN 201120195699U CN 202134081 U CN202134081 U CN 202134081U
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- chip microcomputer
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- power supply
- alarm
- vibroswitch
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Abstract
The utility model relates to a low power positioning falling alarm, belonging to the technical field of electronic detection devices. The alarm comprises a one-chip microcomputer, a vibration switch, a single shaft accelerometer, a handset module and a power supply, wherein the vibration switch is connected with an external interrupt pin of the one-chip microcomputer, the single shaft accelerometer is connected with an A/D converting pin of the one-chip microcomputer, the handset module is connected with an output pin and a serial port pin of the one-chip microcomputer, and the power supply is connected with the one-chip microcomputer and a power supply pin of the handset module. The alarm is low in integral power consumption, small in size, can be used for a long time even if a small capacity cell is adopted, and can realize a positioning function.
Description
Technical field
The utility model belongs to the electronic detecting device technical field, and particularly a kind of low-power consumption can be located and fallen down alarm apparatus design.
Background technology
Along with the increase of aging population, the problem relevant with the elderly is more and more, and a wherein outstanding problem is that the elderly's mishap takes place frequently.Because the decline of the elderly's physical function and the pilosity of disease, the situation of the elderly's accidental falls happens occasionally.And if the elderly's Home Alone or old solitary people, the unmanned discovery when then falling down accident again, old man's situation can be abnormally dangerous.Therefore, it is more and more to fall down warning device in recent years, is intended to detect the action that the elderly falls down, and reports to the police, and guarantees old man's safety.
At present existing a kind of Britain Tunstall company produces falls down testing product.This product comprises three axis accelerometer, single-chip microcomputer, power supply, wireless transmitter module and wireless receiving module.Three axis accelerometer, single-chip microcomputer, power supply and wireless transmitter module are embedded in the etui of 75 * a 53 * 28mm, and the user needs this capsule is worn on waist.Wireless receiving module is the bigger box of a volumes, is positioned over certain fixed position in the user family, links to each other with telephone wire.
Three axis accelerometer, power supply and wireless transmitter module link to each other with input pin, power pins and the output pin of single-chip microcomputer respectively.This device principle of work is following: single-chip microcomputer is monitored the signal of three axis accelerometer input in real time; This signal reaction be that human body is at three axial accekerations; This signal and the threshold value that configures are in advance compared,, think that then the acceleration of human motion is excessive if greater than threshold value; Belong to the situation of falling down, through wireless transmitter module alerting signal is emitted to wireless receiving module then.Wireless receiving module is made a phone call to the external world through telephone wire, the emergency of reporting to the police.
This technical scheme has two deficiencies: 1) power consumption is bigger.This product has 2 high capacity cells, can use 6 months, and jumbo battery also causes small product size bigger.2) to the indoor application environment, do not have positioning function, can't learn particular location after the old man falls down, therefore can't be extended to the outdoor utility environment.
Summary of the invention
The objective of the invention is for overcoming the weak point of prior art, designed a kind of low-power consumption and can locate and fall down alarm, it is low to have overall power, and volume is little, adopts the battery of low capacity, also can use for a long time; Can realize positioning function.
A kind of low-power consumption of the utility model design can be located and fallen down alarm, it is characterized in that this alarm comprises a single-chip microcomputer, and power supply is characterized in that, also comprises a vibroswitch, a single-axis accelerometer, a mobile module; This vibroswitch is connected to the external interrupt pin of single-chip microcomputer, and single-axis accelerometer is connected to the A/D switched pins of single-chip microcomputer, and mobile module links to each other with the serial ports pin with the output pin of single-chip microcomputer, and power supply is connected to the power pins of single-chip microcomputer and mobile module;
Said single-chip microcomputer is provided with power down operations pattern and normal mode of operation, is used for carrying out working mode change according to the state of vibroswitch, and sends instruction through the output valve of single-axis accelerometer, the work of control mobile module;
Said vibroswitch is used for having and waking computing machine when moving significantly up and get into duty through judging tested human body;
Said single-axis accelerometer is used to survey tested human body and is in erectility or lying status, and this information is passed to single-chip microcomputer;
Said mobile module is used for making a phone call and sending short messages to the phone of appointment according to single-chip microcomputer instruction.
Characteristics of the present invention and beneficial effect:
1) pass through the external interrupt triggering source of the vibroswitch of not power consumption as the single-chip microcomputer power-down mode, overall power is low especially, even the battery of low capacity also can use for a long time.And small-capacity cells has reduced volume.
2) can obtain cellular base station information through mobile module, obtain positional information, realize positioning function.
Description of drawings
Fig. 1 is the general structure block diagram of the utility model.
Embodiment
A kind of low-power consumption of the utility model design can be located and fallen down alarm structure accompanying drawing and embodiment specifies as follows:
A kind of low-power consumption of the utility model design can be located and fallen down alarm, and is as shown in Figure 1, and this alarm comprises that a single-chip microcomputer 1, vibroswitch 2, single-axis accelerometer 3, mobile module 4 and power supply 5 form; Vibroswitch 2 is connected to the external interrupt pin of single-chip microcomputer 1, and single-axis accelerometer 3 is connected to the A/D switched pins of single-chip microcomputer, and mobile module links to each other with the serial ports pin with the output pin of single-chip microcomputer, and power supply is connected to the power pins of single-chip microcomputer and mobile module;
Said single-chip microcomputer is provided with power down operations pattern and normal mode of operation, is used for carrying out working mode change according to the state of vibroswitch, and sends instruction through the output valve of single-axis accelerometer, the work of control mobile module;
Said vibroswitch is used for having and waking computing machine when moving significantly up and get into duty through judging tested human body;
Said single-axis accelerometer is used to survey tested human body and is in erectility or lying status, and this information is passed to single-chip microcomputer;
Said mobile module is used for making a phone call and sending short messages to the phone of appointment according to single-chip microcomputer instruction.
The specific embodiment of each parts of the utility model and function thereof are explained respectively as follows:
The single-chip microcomputer 1 of present embodiment adopts AVRMega8 or has other model single-chip microcomputer of same function.If select the AVRMega8 single-chip microcomputer for use, configuration information is following: inner RC vibration is adopted in the clock source, and clock frequency 1MHz is set to 0ms start-up time.
The vibroswitch 2 of present embodiment adopts SW-18010P or has other model vibroswitches of same function.
The single-axis accelerometer 3 of present embodiment adopts AD22279 or has other model single-axis accelerometers of same function.The range of AD22279 single axis accelerometer is ± 35g, is 55mV/g to the susceptibility of acceleration.
The mobile module 4 of present embodiment adopts SIM900A or has other model mobile modules of same function.
The power supply 5 of present embodiment adopts 300 MAH lithium batteries.
The principle of work of present embodiment:
This device is worn over the appropriate location of tested person's health; And make the direction of measurement of single-axis accelerometer consistent with the human body vertical direction; Single-chip microcomputer is in the power down operations pattern at ordinary times, and the single-chip microcomputer working current is 0.5uA, not power consumption of vibroswitch; Accelerometer and mobile phone gsm module are not opened, so static working current is merely 0.5uA.When human body has when moving significantly, vibroswitch can be triggered, and becomes conducting state from ordinary times off state.Because vibroswitch is connected to the external interrupt pin of single-chip microcomputer, so single-chip microcomputer is waken up the entering normal operating conditions from the power down operations pattern.Then, single-chip microcomputer reads in the analog voltage of single-axis accelerometer output from A/D conversion mouth.When this accelerometer was in erectility, acceleration of gravity was 1g, and when being in lying status, direction of measurement acceleration of gravity is 0g, and its voltage output value reduces 55mV.Therefore if this single-axis accelerometer links to each other with human body, and its direction of measurement is consistent with the human body vertical direction, and then this accelerometer can be surveyed human body and is in erectility or lying status.Single-chip microcomputer just can judge that according to the accelerometer signal of reading in human body is in upright still lying status.If be in lying status; Combine the significantly motion of previous triggering vibroswitch so again; Think that the situation of falling down takes place, the starting hand-set gsm module sends instruction through serial ports immediately; Control mobile phone gsm module has also comprised in the note from the locating information of cellular base station acquisition to the emergency of making a phone call and send short messages of the phone of appointment.
In sum, the utility model has two conditions for the judgement of the situation of falling down: 1) need significantly a motion or a vibration, trigger vibroswitch; 2) human body is in lying status but not erectility.
The static working current of present embodiment is 0.5uA, average working current 30uA, and the small-capacity cells of available one 300 MAH can be supported the service time in 1 year.Owing to used small-capacity cells, small product size also can reduce greatly, and volume is 1/4 of a Tunstall Company products.
Therefore the radio alarming function of the utility model can realize the positioning function of precision about 200m through the inquiry of cellular base station information based on mobile phone GSM network.
Claims (1)
1. a low-power consumption can be located and fallen down alarm, and this alarm comprises a single-chip microcomputer, and power supply is characterized in that, also comprises a vibroswitch, a single-axis accelerometer, a mobile module; This vibroswitch is connected to the external interrupt pin of single-chip microcomputer, and single-axis accelerometer is connected to the A/D switched pins of single-chip microcomputer, and mobile module links to each other with the serial ports pin with the output pin of single-chip microcomputer, and power supply is connected to the power pins of single-chip microcomputer and mobile module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120195699U CN202134081U (en) | 2011-06-10 | 2011-06-10 | Low power positioning falling alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120195699U CN202134081U (en) | 2011-06-10 | 2011-06-10 | Low power positioning falling alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202134081U true CN202134081U (en) | 2012-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120195699U Expired - Fee Related CN202134081U (en) | 2011-06-10 | 2011-06-10 | Low power positioning falling alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202134081U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102231226A (en) * | 2011-06-10 | 2011-11-02 | 徐迪 | Low-power-consumption tumble alarm capable of positioning |
| CN103745569A (en) * | 2013-12-30 | 2014-04-23 | 杨松 | Method and terminal for detecting human body tumble |
-
2011
- 2011-06-10 CN CN201120195699U patent/CN202134081U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102231226A (en) * | 2011-06-10 | 2011-11-02 | 徐迪 | Low-power-consumption tumble alarm capable of positioning |
| CN103745569A (en) * | 2013-12-30 | 2014-04-23 | 杨松 | Method and terminal for detecting human body tumble |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120201 Termination date: 20120610 |