CN208433077U

CN208433077U - SCM Based wireless location anti-theft device

Info

Publication number: CN208433077U
Application number: CN201821221278.1U
Authority: CN
Inventors: 张庆辉; 姜明伟; 万晨霞
Original assignee: Zhengzhou Aiyi Electronic Technology Co ltd; Henan University of Technology
Current assignee: Zhengzhou Aiyi Electronic Technology Co ltd; Henan University of Technology
Priority date: 2018-07-31
Filing date: 2018-07-31
Publication date: 2019-01-25
Anticipated expiration: 2028-07-31

Abstract

The utility model discloses a kind of SCM Based wireless location anti-theft devices, it is intended to solve existing burglary-resisting installation be easy to happen misrepresent deliberately, power consumption is high, can not mark the technical issues of article position.The utility model includes acceleration transducer, power module, GPS module, LORA wireless transport module；Acceleration transducer is corresponding with the input port of single-chip microcontroller to be connected, for waking up single-chip microcontroller；GPS module is corresponding with the input port of single-chip microcontroller to be connected, for inputting target position information；LORA wireless transport module is corresponding with the output port of single-chip microcontroller to be connected, for target position information to be sent to host computer；Power module is equipped with the switch element being electrically connected with single-chip microcomputer output in power module for being respectively acceleration transducer, power module, GPS module, wireless transport module power supply.The advantageous effects of the utility model are: it is low in energy consumption, it will not misrepresent deliberately, testee can be accurately positioned.

Description

SCM Based wireless location anti-theft device

Technical field

The utility model relates to burglary-resisting installation technical fields, and in particular to a kind of SCM Based antitheft dress of wireless location It sets.

Background technique

Currently, have the supervision of the Public Goods of fixed position for outdoor area, it is usually real using tactile sensor It is existing, the normal signal of each section is acquired in advance, is detected, once any one sensor has detected abnormal touching This signal is just sent to central processing unit when signal, alarm system starts immediately therewith, notifies holding for article in time Person.But this basis is stolen the stimulation that object is subject to transmit the burglary-resisting installation of signal, is easy to happen phenomena such as misrepresenting deliberately, such as wind The unexpected touching of power or people may all sound an alarm, and existing burglary-resisting installation needs are uninterrupted standby, and power consumption is higher；Another party The existing burglary-resisting installation in face, which is only capable of sounding an alarm, reminds holder, and stolen phenomenon once occurs, and can not demarcate pilferage The position of product is unfavorable for retrieving a loss.

Utility model content

It is to be solved in the utility model be existing burglary-resisting installation be easy to happen misrepresent deliberately, power consumption is high, can not marker grade The technical issues of setting.

In order to solve the above technical problems, the utility model adopts the following technical solution:

Design a kind of SCM Based wireless location anti-theft device, including acceleration transducer, power module, GPS mould Block, LORA wireless transport module；Single-chip microcontroller is one of STM8L series monolithic；Acceleration transducer and single-chip microcontroller it is defeated Inbound port is corresponding to be connected, for waking up single-chip microcontroller；GPS module is corresponding with the input port of single-chip microcontroller to be connected, for inputting target Location information；LORA wireless transport module is corresponding with the output port of single-chip microcontroller to be connected, for target position information to be sent to Host computer；Power module is for being respectively acceleration transducer, power module, GPS module, wireless transport module power supply, power supply The switch element being electrically connected with single-chip microcomputer output is equipped in module.

Further, the model ADXL362, ADXL362 of acceleration transducer are that a super low-power consumption, 3 axis MEMS add Speedometer, electric current is lower than 2 A when output data rate is 100 Hz, and electric current is 270 nA under motion triggers awakening mode.

Further, the model VK2635U7G5LF of GPS module, accurate positioning.

Further, LORA wireless transport module model TEN308 has the spy of remote, low-power consumption, low cost Property.

Further, power module includes 4.2V lithium battery, divider resistance, 3.7V voltage cell and 2.7V voltage electricity Source；The input terminal of divider resistance is connect with 4.2V lithium battery, and output end is electric with 3.7V voltage cell, 2.7V voltage cell respectively Connection.

Further, 3.7V voltage cell includes triode Q5, field-effect tube Q4；The base stage and single-chip microcontroller of triode Q5 Output port electrical connection, emitter ground connection, collector is electrically connected with the grid of field-effect tube Q4；The collector of triode Q5 is also It is electrically connected by current-limiting resistance with the output end of divider resistance；The source electrode of field-effect tube Q4 and the output end of divider resistance are electrically connected It connects, drains as 3.7V voltage output end.

Further, it is connected with storage stream diode between the source electrode and drain electrode of field-effect tube Q4, prevents reverse current pair Q4 is damaged.

Further, 2.7V voltage cell includes HT7527-1 voltage-stablizer, the output end electricity of input terminal and divider resistance Connection, output end are 2.7V voltage output end.

Further, the output end of single-chip microcontroller is also connected with LED state indicator light.

Compared with prior art, the advantageous effects of the utility model are:

1. the utility model is low in energy consumption, STM8L single-chip microcontroller and LORA wireless telecommunications are compared to other processors and communication side The power consumption of formula itself is with regard to relatively low, and single-chip microcontroller can also in a dormant state, into one when sensor does not generate signal Step reduces power consumption.

2. the utility model uses acceleration transducer, induction letter only can be just generated when testee deviates position Number, inductive signal can't be generated if only slight touching, the effectively less generation of wrong report.

3. testee can be accurately positioned in the utility model, testee can be obtained using GPS module Latitude and longitude information is conducive to article and gives for change.

Detailed description of the invention

Fig. 1 is the hardware structural diagram of the SCM Based wireless location anti-theft device of the utility model；

Fig. 2 is the microcontroller circuit figure of the SCM Based wireless location anti-theft device of the utility model；

Fig. 3 is the power circuit diagram of the SCM Based wireless location anti-theft device of the utility model；

Fig. 4 is the input/output module circuit diagram of the SCM Based wireless location anti-theft device of the utility model.

Specific embodiment

Illustrate specific embodiment of the present utility model with reference to the accompanying drawings and examples, but following embodiment only uses It is described in detail the utility model, does not limit the scope of the utility model in any way.

Program that is involved or relying on is the conventional program or simple program of the art, ability in following embodiment Field technique personnel can make conventional selection or are adaptively adjusted according to concrete application scene.

The devices such as unit module or sensor involved in following embodiment are then unless otherwise instructed conventional city Sell product.

Embodiment 1: a kind of SCM Based wireless location anti-theft device is controlled referring to Fig. 1 to Fig. 4, including single-chip microcontroller Device, acceleration transducer, GPS module, LORA wireless transport module, wherein singlechip controller uses STM8L101f3p6 type list Piece machine is a singlechip chip least in power-consuming currently on the market, have AWU automatic wake-up function, when idle single-chip microcontroller into Enter dormant state, quiescent current is only 3uA, so that system power dissipation is extremely low, can be triggered by external interrupt low level or by failing edge Triggering is interrupted or hardware reset mode wakes up single-chip microcontroller；Acceleration transducer uses ADXL362, motion detecting mode current For 0.5uA；LORA wireless transport module use TEN308, receive electric current only 10mA, sleep current 200nA, and LORA without Line transmission mode long transmission distance, up to 5 kilometers；Connection Ethernet is not needed, the expenses such as flow are exempted from, is conducive to cut down cost； GPS module uses VK2635U7G5LF, and using Differential positioning, positioning accuracy reaches meter level, and calculating error is small, while the GPS mould Block is cheap, maintains easily.

4 feet of singlechip controller are connected with RC reset circuit, and BUT1 is reset button；11 feet and 12 feet are connected separately with LED light is used for marker circuit working condition, and when single-chip microcontroller suspend mode, D2 and D3 do not work, and only D2 is lighted when standby, and upper D2 and D3 is lighted simultaneously when the machine communication of position.10 feet of singlechip controller are connected with the base stage of the triode Q5 in power circuit, It include 4.2V lithium battery BAT, 3.7V voltage cell and 2.7V voltage cell in power circuit；Lithium battery is exported through divider resistance R4 The collector of Q5 is connected by current-limiting resistance with UPS4V in 4V DC power supply UPS4V, 3.7V voltage cell, which is R11 and R12 in parallel, Q4 are SI2301 type field-effect tube, and grid is connected with the collector of Q5, and source electrode is connected with UPS4V, this When drain electrode then export 3.7V DC power supply, 6 feet of the 3.7V DC power supply respectively with 2 feet of GPS and LORA module are connected to two Person's power supply；It is also connected with freewheeling diode between the source of Q4, drain electrode, the electric current that recoils of releasing in time.2.2V power supply unit uses HT7527-1 voltage-stablizer, 2 foot of input terminal are connected with UPS4V, and 3 foot of output end exports 2.7V DC power supply, the 2.7V DC power supply The two power supply is connected to 1 foot of 8 feet of single-chip microcontroller and acceleration transducer respectively.Q5 is NPN type triode, at single-chip microcontroller It is that DEV_POWER exports low level, and Q5 shutdown, the base stage of the collector of Q5 i.e. Q4 are high level at this time in dormant state, Q4 shutdown, using the switching characteristic of triode Q5, so that single-chip microcontroller cuts off the confession of GPS module and LORA communication module in suspend mode Electricity further decreases energy consumption.Since 1 foot of single-chip microcontroller and 20 foot high level are effective, and GPS module and the output of LORA communication module For low level, therefore 3 feet of GPS module and 3 feet of LORA module are connected with level shifting circuit respectively, 3 feet of GPS module with The emitter of Q3 is connected, and 3 feet of LORA module are connected with the emitter of Q2, when GPS module and LORA module work, GPS_TX1 It is low level with LORA_RX1, Q3 and Q2 conducting at this time, GPS_TX and LORA_RX are then high level.

The present embodiment course of work is as follows: under original state, single-chip microcontroller is dormant state；When ADXL362 acceleration sensing Device is received in high level by the stimulation moved, INIT2 serial-port mapping high level, the TIM2_TRIG being connected with INIT2 serial ports Break signal, single-chip microcontroller are waken up, and PB0 exports high level, and 3.7V power supply is connected, and GPS module is started to work, real-time position information It is transmitted to STM8L chip, then single-chip microcontroller the GPS data information transmitted and is sent to Lora wireless transport module, Zhi Houyou Wireless transport module is sent to host computer；When (after such as 1 minute) generates acceleration transducer without signal for a long time, single-chip microcontroller Into dormant state, GPS and Lora power supply is closed.

The utility model is described in detail above in conjunction with drawings and examples, still, the skill of technical field Art personnel, can also be to each specific in above-described embodiment it is understood that without departing from the purpose of the present invention Parameter changes, and forms multiple specific embodiments, is the common variation range of the utility model, no longer detailed one by one herein It states.

Claims

1. a kind of SCM Based wireless location anti-theft device, it is characterised in that: including acceleration transducer, power module, GPS module, LORA wireless transport module and single-chip microcontroller；The single-chip microcontroller is one of STM8L series monolithic；The acceleration It is corresponding with the input port of the single-chip microcontroller connected to spend sensor, for waking up the single-chip microcontroller；The GPS module and the list The input port of piece machine is corresponding to be connected, and is used for Generate Target Position information；The LORA wireless transport module and the single-chip microcontroller Output port it is corresponding be connected, for the target position information to be sent to host computer；The power module is provided with and institute The switch element of the output end electrical connection of single-chip microcontroller is stated, the power module is for being respectively the acceleration transducer, monolithic Machine, GPS module, the power supply of LORA wireless transport module.

2. SCM Based wireless location anti-theft device according to claim 1, it is characterised in that: the acceleration passes The model ADXL362 of sensor.

3. SCM Based wireless location anti-theft device according to claim 1, it is characterised in that: the GPS module Model VK2635U7G5LF.

4. SCM Based wireless location anti-theft device according to claim 1, it is characterised in that: the LORA is wireless The model TEN308 of transmission module.

5. the SCM Based wireless location anti-theft device according to claim 3 or 4 any one, it is characterised in that: The power module includes 4.2V lithium battery, divider resistance, 3.7V voltage cell and 2.7V voltage cell；The divider resistance Input terminal is connect with the 4.2V lithium battery, and output end is electrically connected with the 3.7V voltage cell, 2.7V voltage cell respectively.

6. SCM Based wireless location anti-theft device according to claim 5, it is characterised in that: the 3.7V voltage Unit includes triode Q5, field-effect tube Q4；The base stage of the triode Q5 is electrically connected with the output port of the single-chip microcontroller, hair Emitter grounding, collector are electrically connected with the grid of the field-effect tube Q4；The collector of the triode Q5 also passes through current limliting electricity Resistance is electrically connected with the output end of the divider resistance；The output end of the source electrode and the divider resistance of the field-effect tube Q4 is electrically connected It connects, drains as 3.7V voltage output end.

7. SCM Based wireless location anti-theft device according to claim 6, it is characterised in that: the field-effect tube Storage stream diode is connected between the source electrode and drain electrode of Q4.

8. SCM Based wireless location anti-theft device according to claim 5, it is characterised in that: the 2.7V voltage Unit includes HT7527-1 voltage-stablizer, and input terminal is electrically connected with the output end of the divider resistance, and output end is 2.7V voltage Output end.

9. SCM Based wireless location anti-theft device according to claim 1, it is characterised in that: the single-chip microcontroller Output end is also connected with LED state indicator light.