CN2898835Y - Ultra-low consumption vibration alarming device - Google Patents
Ultra-low consumption vibration alarming device Download PDFInfo
- Publication number
- CN2898835Y CN2898835Y CN 200620040622 CN200620040622U CN2898835Y CN 2898835 Y CN2898835 Y CN 2898835Y CN 200620040622 CN200620040622 CN 200620040622 CN 200620040622 U CN200620040622 U CN 200620040622U CN 2898835 Y CN2898835 Y CN 2898835Y
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- amplifier circuit
- differential amplifier
- singlechip
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Abstract
The utility model relates to an ultra-low consumption vibration alarming device, which comprises a power adjuvant circuit comprises batteries and a power alteration circuit, a 2-dimension or a 3-dimension MEMS acceleration sensor connected with differential coefficient amplification circuit, the latter of which is connected with a selection circuit of amplification times, and the interruption input signal of a singlechip as the output of the differential amplification circuit, with the signal connected with the singlechip that is connected with the utility model. Therefore, the whole-time surveillance on the products can be accomplished with low power consumption. Once the vibration goes beyond the limit, an alarm exists there. Proved by experiments, the standby current is kept steady within 1000 uA (including the standby current of circuits such as singlechip in dormancy, etc), which significantly prolongs the life-span of the battery with lower power consumption by a magnitude order compared with products of the same sort. The standby time is more than 720 hours, if powered by an ordinary lithium battery. If super volume battery is available, the supporting time will be more than a year.
Description
Technical field
The utility model relates to a kind of oscillation sensor field, is a kind of extremely low power dissipation vibration alarming apparatus that wireless sensor network is used that is suitable for.
Background technology
The vibration transducer of safety-security area is of a great variety, divide from traditional measuring principle, displacement-type, magneto-electric, strain-type, pressure resistance type, piezoelectric type etc. are arranged, most volumes are big, power consumption is also bigger, as security product, stand-by time can be shorter under the powered battery situation, then is not easy to hiddenly with the external power supply mode, and the security protection effect significantly reduces.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of extremely low power dissipation vibration alarm, with overcome existing vibration transducer volume and power consumption big, be not easy to hidden shortcoming.
The technical scheme of the utility model technical solution problem is as follows:
A kind of extremely low power dissipation vibration alarm is characterized in that, comprising:
The two dimension of extremely low power dissipation or three-dimensional MEMS acceleration transducer;
Differential amplifier circuit is connected with two dimension or three-dimensional MEMS acceleration transducer, and its output signal is handled;
Enlargement ratio is selected circuit, is connected with differential amplifier circuit, and the user can preset it according to the requirement of needs warning sensitivity, solves the wrong report problem;
The singlechip interruption input signal by differential amplifier circuit output, is connected to the single-chip microcomputer that is connected with the utility model.
The utility model adopts above-mentioned structure, adds the form of amplifying circuit with differential acceleration transducer signals is handled, and is transformed into a digital quantity, and promptly in a single day acceleration change exceeds thresholding, and circuit is exported high level, from but formed a vibration alarm.
Why say that this vibration alarm is particularly suitable for wireless sensor network, be because the output of this alarm can be used as the interruption input of single-chip microcomputer, wake the single-chip microcomputer that is in dormancy at ordinary times up, single-chip microcomputer is controlled wireless transport module again, send alerting signal, warning message is promptly in time sent after receiving alerting signal in the base station.When the vibration transducer no-output, single-chip microcomputer self also enters park mode after turn-offing wireless transport module, when that is to say standby in the terminal system only vibration alarm partly work, thereby guaranteed the extremely low power dissipation of terminal system.
Compare with present state-of-the-art Zigbee agreement, this alarm is because control single chip computer dormancy when no signal, promptly changes a complete rest into by in general sense timing dormancy and sleeps, and sensor is then detected by general timing and changes all the period of time monitoring into, therefore this alarm power consumption is extremely low, and reliability is higher.
In order to solve the wrong report problem, this alarm improves from design, and the one, in signal conditioning circuit, acceleration signal coupling differentiating circuit, but when amplifying, adopted filtering measures, the effectively filtering of radio-frequency component quilt, thus prevent circuit interference causing false alarm.The 2nd, on circuit, designed the enlargement ratio selection, the user can set alarm threshold by toggle switch according to needs, does not need too highly sensitive occasion can suitably improve alarm threshold at some, thereby solves the wrong report problem.
The beneficial effects of the utility model are to realize product is carried out all the period of time monitoring in extremely low power dissipation ground the warning immediately in case vibration is transfinited.After tested, this product standby current is stabilized in 1000uA with interior (standby current that contains the circuit such as single-chip microcomputer of dormancy) always, can prolong the serviceable life of battery greatly.Than a like product order of magnitude low in energy consumption, but use common single-unit lithium electricity stand-by operation more than 720 hours, as using battery with ultra large capacity, but then standby more than a year.
Description of drawings
Fig. 1 the utility model circuit theory diagrams.
Embodiment
Referring to Fig. 1, a kind of extremely low power dissipation vibration alarm is characterized in that, comprising:
The two dimension of extremely low power dissipation or three-dimensional MEMS acceleration transducer 3 are used for obtaining the analog quantity of acceleration, and the work peak acceleration is in 2-5g;
The differential amplifier circuit 4 that is connected with two dimension or three-dimensional MEMS acceleration transducer 3 is handled two dimension or three-dimensional MEMS acceleration transducer 3 signals, is transformed into a digital quantity, and promptly in a single day acceleration change exceeds thresholding, circuit output high level;
Select circuit 5 with the enlargement ratio of differential amplifier circuit 4, the user can preset it according to the requirement of needs warning sensitivity, solves the wrong report problem, and multiplying power is doubly optional from 10-10000;
The singlechip interruption input signal 6 that enlargement ratio selects circuit 5 to be exported is connected to the single-chip microcomputer 7 that is connected with the utility model, is used to wake up the single-chip microcomputer 7 that is in dormancy at ordinary times.
Battery 1 and power conversion 2 are formed power supply auxiliary circuit, provide power supply by common single-unit lithium battery for entire circuit.
Enlargement ratio selects circuit 5 to adopt 2～8 common toggle switchs.
The utility model is after battery 1 and power conversion 2 formed power supply auxiliary circuits and normally provided power supply for device, power consumption is selected circuit 5 operate as normal at 60uA with interior differential amplifier circuit 4 and enlargement ratio with interior two dimension or three-dimensional MEMS acceleration transducer 3, power consumption at 900uA, the single-chip microcomputer 7 that is connected with the utility model and other peripherals that is connected with single-chip microcomputer 7, all be in dormant state as parts such as wireless transport modules, thus the extremely low power dissipation characteristics of the system of assurance.
After the external world vibrates, 3 pairs of acceleration inductions of two dimension or three-dimensional MEMS acceleration transducer produce simulating signal, import into differential amplifier circuit 4, select the parameter preset of 5 pairs of sensitivity of circuit according to enlargement ratio, differential amplifier circuit 4 and enlargement ratio select 5 pairs of signals of circuit to handle, be transformed into a digital quantity, be that in a single day acceleration change exceeds thresholding, enlargement ratio is selected circuit 5 output high level, form singlechip interruption input signal 6, wake the single-chip microcomputer that is in dormant state 7 that is connected with the utility model up, single-chip microcomputer 7 is controlled peripheral circuit again, sends alerting signal as wireless transport module.
Claims (3)
1. an extremely low power dissipation vibration alarm is characterized in that, comprising:
With interior two dimension or three-dimensional MEMS acceleration transducer (3), its output form is a voltage analog to working current at 900uA, and the work peak acceleration is in 2-5g;
Be connected in the differential amplifier circuit (4) of two dimension or three-dimensional MEMS acceleration transducer (3);
The enlargement ratio that is connected in differential amplifier circuit (4) is selected circuit (5), and multiplying power is doubly optional from 10-10000;
The singlechip interruption input signal (6) that differential amplifier circuit (4) is exported;
The battery (1) and the power conversion (2) that are connected in two dimension or three-dimensional MEMS acceleration transducer (3) are formed power supply auxiliary circuit.
2. extremely low power dissipation vibration alarm according to claim 1 is characterized in that, differential amplifier circuit (4) and enlargement ratio select circuit (5) to adopt working current to be controlled at 60uA with interior integrated operational amplifier circuit chip.
3. extremely low power dissipation vibration alarm according to claim 1 is characterized in that, enlargement ratio selects circuit (5) to adopt 2～8 common toggle switchs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620040622 CN2898835Y (en) | 2006-03-29 | 2006-03-29 | Ultra-low consumption vibration alarming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620040622 CN2898835Y (en) | 2006-03-29 | 2006-03-29 | Ultra-low consumption vibration alarming device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2898835Y true CN2898835Y (en) | 2007-05-09 |
Family
ID=38074170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620040622 Expired - Lifetime CN2898835Y (en) | 2006-03-29 | 2006-03-29 | Ultra-low consumption vibration alarming device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2898835Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155958A (en) * | 2010-12-31 | 2011-08-17 | 北京兴华机械厂 | Transportation condition monitoring recorder based on micro-inertial component |
| CN102231226A (en) * | 2011-06-10 | 2011-11-02 | 徐迪 | Low-power-consumption tumble alarm capable of positioning |
| CN103129583A (en) * | 2011-12-01 | 2013-06-05 | 中铁信息计算机工程有限责任公司 | Intelligent iron shoe and system thereof |
| WO2015032094A1 (en) * | 2013-09-09 | 2015-03-12 | Robert Bosch Gmbh | Shock sensor |
| CN104538219A (en) * | 2014-12-04 | 2015-04-22 | 国家电网公司 | Wireless intelligent omni-sealed five-prevention electric lock |
| CN104794841A (en) * | 2015-05-15 | 2015-07-22 | 威亚讯通(北京)科技有限公司 | Ground wave micro vibration direction servo tracking and monitoring device and control system thereof |
| CN108680248A (en) * | 2018-05-18 | 2018-10-19 | 中铁山桥集团有限公司 | A kind of rail vibration monitoring device |
| CN109637093A (en) * | 2018-12-12 | 2019-04-16 | 上海裕达实业有限公司 | Vibration security system based on Internet of Things |
-
2006
- 2006-03-29 CN CN 200620040622 patent/CN2898835Y/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155958B (en) * | 2010-12-31 | 2012-08-22 | 北京兴华机械厂 | Transportation condition monitoring recorder based on micro-inertial component |
| CN102155958A (en) * | 2010-12-31 | 2011-08-17 | 北京兴华机械厂 | Transportation condition monitoring recorder based on micro-inertial component |
| CN102231226A (en) * | 2011-06-10 | 2011-11-02 | 徐迪 | Low-power-consumption tumble alarm capable of positioning |
| CN103129583A (en) * | 2011-12-01 | 2013-06-05 | 中铁信息计算机工程有限责任公司 | Intelligent iron shoe and system thereof |
| CN105637372B (en) * | 2013-09-09 | 2019-06-14 | 罗伯特·博世有限公司 | Vibrating sensor |
| WO2015032094A1 (en) * | 2013-09-09 | 2015-03-12 | Robert Bosch Gmbh | Shock sensor |
| CN105637372A (en) * | 2013-09-09 | 2016-06-01 | 罗伯特·博世有限公司 | Shock sensor |
| US10705111B2 (en) | 2013-09-09 | 2020-07-07 | Robert Bosch Gmbh | Shock sensor |
| CN104538219A (en) * | 2014-12-04 | 2015-04-22 | 国家电网公司 | Wireless intelligent omni-sealed five-prevention electric lock |
| CN104794841A (en) * | 2015-05-15 | 2015-07-22 | 威亚讯通(北京)科技有限公司 | Ground wave micro vibration direction servo tracking and monitoring device and control system thereof |
| CN104794841B (en) * | 2015-05-15 | 2017-08-15 | 威亚讯通(北京)科技有限公司 | A kind of earthwave microseismic activity direction servo follow-up tracing supervising device and its control system |
| CN108680248A (en) * | 2018-05-18 | 2018-10-19 | 中铁山桥集团有限公司 | A kind of rail vibration monitoring device |
| CN109637093A (en) * | 2018-12-12 | 2019-04-16 | 上海裕达实业有限公司 | Vibration security system based on Internet of Things |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070509 |
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| EXPY | Termination of patent right or utility model |