CN110517451A - A kind of alarm - Google Patents
A kind of alarm Download PDFInfo
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- CN110517451A CN110517451A CN201910878876.9A CN201910878876A CN110517451A CN 110517451 A CN110517451 A CN 110517451A CN 201910878876 A CN201910878876 A CN 201910878876A CN 110517451 A CN110517451 A CN 110517451A
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- 230000001133 acceleration Effects 0.000 claims abstract description 17
- 239000003990 capacitor Substances 0.000 claims description 52
- 238000001514 detection method Methods 0.000 claims description 20
- 238000002955 isolation Methods 0.000 claims description 18
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 239000013078 crystal Substances 0.000 claims description 4
- 239000010453 quartz Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 230000002457 bidirectional effect Effects 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 abstract description 3
- 230000006399 behavior Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 238000007405 data analysis Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 206010013082 Discomfort Diseases 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 230000005662 electromechanics Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/04—Alarms for ensuring the safety of persons responsive to non-activity, e.g. of elderly persons
- G08B21/0407—Alarms for ensuring the safety of persons responsive to non-activity, e.g. of elderly persons based on behaviour analysis
- G08B21/043—Alarms for ensuring the safety of persons responsive to non-activity, e.g. of elderly persons based on behaviour analysis detecting an emergency event, e.g. a fall
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/04—Alarms for ensuring the safety of persons responsive to non-activity, e.g. of elderly persons
- G08B21/0438—Sensor means for detecting
- G08B21/0446—Sensor means for detecting worn on the body to detect changes of posture, e.g. a fall, inclination, acceleration, gait
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- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Radar, Positioning & Navigation (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Gerontology & Geriatric Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Social Psychology (AREA)
- Psychology (AREA)
- Psychiatry (AREA)
- Computer Networks & Wireless Communication (AREA)
- Alarm Systems (AREA)
Abstract
The present invention provides a kind of alarms, comprising: accelerometer, the acceleration value for detected target object movement；Single chip circuit is connected with accelerometer, for obtaining the tilt angle of target object based on acceleration value, to determine whether target object falls based on tilt angle；GPS circuitry is connected with single chip circuit, and GPS circuitry is used to acquire the latitude and longitude information of target object, and latitude and longitude information is sent to single chip circuit, to determine the position of target object based on latitude and longitude information by single chip circuit；It warns unit, is connected with single chip circuit, for warning when determining that target object is fallen to other people；And short message circuit, it is connected with single chip circuit, for sending latitude and longitude information to target terminal when determining that target object is fallen.The present invention is to improve to people with mobility problems or the protective effect for needing to be looked after personage.
Description
Technical field
The present invention relates to alarm field more particularly to a kind of alarms.
Background technique
With the arrival of aging society, the quantity of the elderly is increasing, in addition the influence of family planning, children's quantity
Relatively on the low side, social life rhythm is again fast, children almost without method accomplish to accompany constantly parent at one's side, old man is once occur
The situations such as tumble, if without finding in time, it is possible to cause danger.
Therefore, it is necessary to study a kind of warning devices, to warn in time to other people when the behaviors such as tumble occur for old man.
Summary of the invention
The purpose of the present invention is to provide a kind of alarms, to improve to people with mobility problems or need to be looked after personage
Protective effect.
To achieve the above object, the present invention is implemented as follows:
The present invention provides a kind of alarm, comprising:
Accelerometer, the acceleration value for detected target object movement；
Single chip circuit is connected with the accelerometer, for obtaining the target object based on the acceleration value
Tilt angle, to determine whether the target object falls based on the tilt angle；
GPS circuitry is connected with the single chip circuit, and the GPS circuitry is used to acquire the longitude and latitude of the target object
Information, and the latitude and longitude information is sent to the single chip circuit, to be based on the longitude and latitude by the single chip circuit
Degree information determines the position of the target object；
Warn unit, be connected with the single chip circuit, for when determining that the target object is fallen to other people
It warns；And
Short message circuit is connected with the single chip circuit, for when determining that the target object is fallen to target
Terminal sends the latitude and longitude information.
The embodiment of the present invention has the beneficial effect that
Since alarm of the invention is detected by the acceleration value that accelerometer moves target object, and pass through
Single chip circuit parses acceleration value to obtain the tilt angle of target object, to determine target object according to tilt angle
Whether fall, the latitude and longitude information of target object is then acquired by GPS circuitry, to pass through single machine unit according to longitude and latitude
Degree information determines the position of target object, thus warned by warning unit to other people when determining that target object is fallen,
And the latitude and longitude information of target object is sent to target terminal by short message circuit.In this way, can accurately be sentenced by alarm
Position when disconnected target object is fallen, and to target object near other people alarm while will fall
When latitude and longitude information be sent to the target terminal such as kith and kin or police or hospital, target object is protected with further reaching
The purpose of shield.
Detailed description of the invention
Fig. 1 is the schematic block diagram of the alarm of one embodiment of the invention；
Fig. 2 is the illustrative circuitry structure chart of the single chip circuit of one embodiment of the invention；
Fig. 3 is the illustrative circuitry structure chart of the accelerometer of one embodiment of the invention；
Fig. 4 is the illustrative circuitry structure chart of the short message circuit of one embodiment of the invention；
Fig. 5 is the illustrative circuitry structure chart of the unit of warning of one embodiment of the invention；
Fig. 6 is the illustrative circuitry structure chart of the GPS circuitry of one embodiment of the invention；
Fig. 7 is the schematic presentation figure of the pickup target object coordinate position of one embodiment of the invention；
Fig. 8 is the illustrative circuitry structure chart of the power supply circuit of one embodiment of the invention.
Specific embodiment
The present invention is described in detail for each embodiment shown in reference to the accompanying drawing, but it should be stated that, these
Embodiment is not limitation of the present invention, those of ordinary skill in the art according to these embodiments made by function, method,
Or equivalent transformation or substitution in structure, all belong to the scope of protection of the present invention within.
The technical solution provided below in conjunction with attached drawing, each embodiment that the present invention will be described in detail.
Fig. 1 is the schematic block diagram of the alarm of one embodiment of the invention, to improve to handicapped or need
It will be by the protective effect of caregiver scholar (such as old man, disabled person).Alarm of the invention includes: accelerometer 2, for examining
Survey the acceleration value of target object movement；Single chip circuit 4 is connected with accelerometer 2, for obtaining target based on acceleration value
The tilt angle of object, to determine whether target object falls based on tilt angle；GPS circuitry 3, with single chip circuit 4
It is connected, GPS circuitry 3 is used to acquire the latitude and longitude information of target object, and latitude and longitude information is sent to single chip circuit 4, with
The position of target object is determined based on latitude and longitude information by single chip circuit 4；It warns unit 5, is connected with single chip circuit 4,
For warning when determining that target object is fallen to other people；And short message circuit 6, it is connected with single chip circuit 4, is used for
It determines and sends latitude and longitude information to target terminal when target object is fallen.Alarm of the invention further includes power supply unit 1,
To pass through power supply unit 1 respectively to accelerometer 2, GPS circuitry 3, single chip circuit 4, warn unit 5 and the confession of short message circuit 6
Electricity.
Since alarm of the invention is detected by the acceleration value that accelerometer 2 moves target object, and lead to
It crosses single chip circuit 4 acceleration value is parsed to obtain the tilt angle of target object, to determine target according to tilt angle
Whether object falls, and the latitude and longitude information of target object is then acquired by GPS circuitry 3, to pass through single machine unit 4
The position of target object is determined according to latitude and longitude information, to pass through unit 5 to him of warning when determining that target object is fallen
People warns, and sends the latitude and longitude information of target object to target terminal by short message circuit 6.In this way, can by alarm
Accurately judge position when target object is fallen, and to target object near other people alarm while will
Latitude and longitude information when falling is sent to the target terminal such as kith and kin or police or hospital, further to reach to target pair
As the purpose protected.
It is illustrated in conjunction with Fig. 2, single chip circuit 4 includes that (the chip concrete model can be STM chip U6
STM32F103C8T6), with STM chip U6 communication connection program debugging download circuit P5, STM chip U6 peripheral circuit packet
Include clock circuit 40 and isolation circuit 41；Wherein, clock circuit 40 is by quartz crystal oscillator Y1 and two resonant capacitances (C13, C19, electricity
Capacitance can be 33pf) it constitutes, and clock circuit 40 is connected by the both ends of quartz crystal oscillator Y1 with STM chip U6；Isolation electricity
Road 41 is made of electrolytic capacitor C11, the first filter capacitor C12 in parallel with electrolytic capacitor C11, electrolytic capacitor C11 anode with
The first power port (pin 9) of STM chip U6 is connected, the cathode ground connection of electrolytic capacitor C11.The peripheral circuit of STM chip U6
It further include the first filter circuit being made of third current-limiting resistance R15 (such as 10K), the second filter capacitor C20, by two thirds
The second filter circuit that filter capacitor (C8, C9) is constituted, the third filtered electrical being made of two the 4th filter capacitors (C2, C6)
Road, and the 4th filter circuit being made of the 5th filter capacitor C7.
Wherein, the first end of third current-limiting resistance R15 is connected with the second source port (pin 1) of STM chip U6, third
The second end of current-limiting resistance R15 is connected with the first end of the second filter capacitor C20, and the second end of third current-limiting resistance R15 connects
It is connected to the second end ground connection of the switch K2, the second filter capacitor C20 of a ground connection, reset terminal (pin 7) and third the current limliting electricity of STM
The second end for hindering R15 is connected, by restarting reset by lower switch K2 realization single chip circuit.One of third filter capacitor
The both ends of C8 are connected with the third power port (pin 47) of STM chip U6, the 4th power port (pin 48) respectively, another
The third filter capacitor C9 of ground connection is connected with the 4th power port (pin 48) of STM chip U6, and the 4th power port (pin
48) it is connected with power supply (power supply circuit 1), third power port (pin 47) ground connection.Two the 4th filter capacitors (C2, C6) phases are simultaneously
Connection, and one end of two the 4th filter capacitor parallel connections is connected to the 5th power port (pin 36) of STM chip U6, two the 4th
The other end of filter capacitor parallel connection is connected to the 6th power port (pin 35) of STM chip.The first of 5th filter capacitor C7
End is grounded and is connected with the 7th power port (pin 23) of STM chip U6, and the second end of the 5th filter capacitor C7 is connected to STM
The 8th power port (pin 24) of chip U6.
It should be noted that the capacitance of filter capacitor referred to above can be 0.1uf, wherein the second filtering
The capacitance of capacitor C20 can be 10uf, to play the role of isolation.The capacitance of related electrolytic capacitor can be
10uf。
As shown in Fig. 2, the pin 1 of program debugging download circuit P5 connects power supply, pin 4 is grounded, and pin 2 and pin 3 are distinguished
It is connected with the pin 37 of STM chip U6, pin 34.The pin 44 of STM chip U6 can connect the current-limiting resistance R10 of a ground connection, limit
The resistance value of leakage resistance R10 is 10K.
As shown in figure 3, accelerometer is made of ADX chip U8 (concrete model can be adxl345), and ADX chip U8
Bidirectional data communication interface (pin 7) and interface clock signal (pin 6) be connected respectively with single chip circuit 4, specifically,
The bidirectional data communication interface (pin 7) of ADX chip U8 is connected with the pin 21 of STM chip U6, the pin 6 of ADX chip U8 with
The pin 22 of STM chip U6 is connected.
It should be understood that adxl345 chip be three axis accelerometer, the accelerometer high resolution 13, measurement range up to ±
16g.Digital output data is 16 complement of two's two's complement formats, can be accessed by SPI (3 lines or 4 lines) or I2C digital interface.
Adxl345 chip can measure static weight acceleration in tilt detection application, can also measure caused by movement or impact
Dynamic acceleration, high-resolution (3.9mg/LSB), can be not measured 1.0 ° of angle change.In reality of the invention
It applies in example, is principle straight down always according to acceleration of gravity direction, when certain inclination angle deflection occurs for target object,
According to Vector modulation and resolution principle, the acceleration of vertical direction can be analyzed to mutually perpendicular component, thus according to component
Size calculates the inclination angle of deflection, and goes out target object according to the inclination angle of deflection and the velocity estimated of deflection and fall.
As shown in figure 4, short message circuit 6 include SIM chip U7 (concrete model SIM800A), be connected with SIM chip and with
The connected voltage conversion circuit 60 of the communication port of single chip circuit 4, voltage conversion circuit 60 are used for the data of SIM chip U7
The voltage of port is converted to the voltage that single chip circuit 4 is able to bear, and data port includes data sending terminal mouth (pin 9) sum number
According to receiving port (pin 10)；Wherein, voltage conversion circuit 60 is by first resistor R14, second resistance R18,3rd resistor (R13
And/or R16), the 4th resistance (R17 and/or R12), the first triode Q3 and the second triode Q2 constitute.First triode Q3
Emitter be connected with data sending terminal mouth, data receiver port (pin 10) is sequentially connected first resistor R14,3rd resistor
The base stage of (R13 and/or R16), the first triode Q3, the collector of the first triode Q3 be sequentially connected the 4th resistance (R17 and/
Or R12), the base stage of the second triode Q2, the collector of the second triode Q2 is connected with first resistor R14 and and 3rd resistor
(R13 or R16) is connected, and the collector of the first triode Q2, which is connected by second resistance R18 with single chip circuit 4, (specifically to be connect
To the pin 13 of STM chip), the emitter of the second triode Q2 is connected with single chip circuit 4 (is specifically connected to STM chip
Pin 12).
Since the operating voltage of single chip circuit 4 is generally 3.3V, the voltage of the part pin of SIM800A is 5V, therefore,
The 5V pin voltage of SIM800A is converted into 3.3V by voltage conversion circuit 60, is realized logical with the serial ports of single chip circuit 4
Letter.Wherein, the resistance value of R13, R16, R17, R12 can be 4.7K, and the resistance value of R14, R18 can be 470 Ω.
Short message circuit 6 further includes SMF chip U5 (concrete model can be SMF05C), and the reseting port of SMF chip U5 (draws
Foot 5) be connected with the reset terminal (pin 33) of SIM chip U7, the clock port (pin 4) of SMF chip U5 and SIM chip U7 when
Clock signal end (pin 32) is connected.The peripheral circuit of short message circuit 6 includes the hardware slot module U1 for grafting SIM card, often
The operational pin of rule SIM card has 5, is SIM DATA, SIM VDD, SIM RST, SIM CLK, GND, 5 welderings in material object respectively
It is correctly docked at disk and the golden finger of SIM card.Wherein, the pin 6 of hardware slot module U1 is connected with a ground capacity C1 (capacitor
Value is 0.1uf), it is filtered for the working power to SIM card.
Short message circuit 6 further includes the start-up circuit being made of starting triode Q1 and current-limiting resistance R7, starts triode Q1
Emitter ground connection, the base stage of starting triode Q1 is connected to power supply by current-limiting resistance R7, the collector of starting triode Q1
It is connected with the start end (pin 1) of SIM chip U7.When VBAT electrification, the base stage of triode Q1 is high level, i.e. triode Q1
Emitter junction conducting so, it is possible to meet SIM chip U7 starting at this point, the pin 1 (PWRKEY) of SIM chip U7 is low level
Condition, make SIM chip U7 work normally.
Short message circuit 6 further includes first detection unit and second detection unit, and first detection unit is by the first current-limiting resistance
R11 and the first light emitting diode D4 is constituted, and second detection unit is made of the second current-limiting resistance R9 and the second light emitting diode D3.
Wherein, the indicator light interface (pin 4) of SIM chip U7 is connected with one end of the first current-limiting resistance R11, the first current-limiting resistance R11
The other end be connected with the anode of the first light emitting diode D4, the cathode of the first light emitting diode D4 ground connection；The string of SIM chip U7
Line interface (pin 52) is connected with one end of the second current-limiting resistance R9, the other end and the second light-emitting diodes of the second current-limiting resistance R9
The anode of pipe D3 is connected, the cathode ground connection of the second light emitting diode D3.
It should be understood that needing to be inserted into a phone SIM card when short message circuit 6 works, the signal to prevent electrostatic from generating is done
It disturbs, it can be by increasing SMF chip U5 to eliminate electrostatic interference.SIM800A chip can be used in the core chips of short message circuit, has
5V power voltage supply, therefore, the pin 55,56,57 of SMF chip U5 meet VBAT, pin 17,18,29,39,45,46,54,61,62,
63,64,65 pins are grounded, and pin 52 meets the second light emitting diode D3 by the second current-limiting resistance R9, and electricity is indicated when D3 is lighted
Words card correctly connects, and pin 4 passes through the first current-limiting resistance R11 the first light emitting diode of connection D4, the first light emitting diode D4
Flashing indicates that signal transmission is normal when work.
In addition, the pin 60 of SIM chip U7 connects SMA antenna U9, for receiving signal.The pin 17 of SIM chip U7,
18,29,39,45,46,54,58,59,61-64 is grounded, and connects a capacitor between the pin 17 and pin 16 of SIM chip U7
Value is the filter capacitor C10 of 0.1uf, and the electrolysis that a capacitance is 10uf is connected between the pin 29 and pin 26 of SIM chip U7
Capacitor C21, and the anode of electrolytic capacitor C21 is connected with the pin 26 of SIM chip U7, the cathode and SIM chip of electrolytic capacitor C21
The pin 29 of U7 is connected.
As shown in figure 5, unit 5 of warning is by buzzer U10, third light emitting diode D6, third transistor Q4, common two pole
Pipe D5, the 4th current-limiting resistance R6 and the 5th current-limiting resistance R8 are constituted.Wherein, the base stage of third transistor Q4 passes through the 4th current limliting electricity
Resistance R6 is connected with single chip circuit 4 and (is specifically connected to the pin 29 of STM chip), the emitter ground connection of third transistor Q4, the
The collector of three triode Q4 respectively with the cathode of buzzer U10, the anode of general-purpose diode D5, third light emitting diode D6
Cathode is connected, and the anode of buzzer U10 is connected with the cathode of general-purpose diode D5, and the anode of third light emitting diode D6 passes through the
Five current-limiting resistance R8 are connected with the anode of buzzer U10, and the anode and power supply (power supply circuit 1,3.3V) phase of buzzer U10
Even.
It should be noted that single chip circuit 4 includes that (i.e. the pin of the pin 28 of STM chip U7 connects a control switch K1
Meet control switch K1), determine whether that starting unit 5 of warning warns with the state by control switch K1.Work as emergency case
Control switch K1 is pressed when generation, it is in low level state, STM that corresponding PB15 (pin 28 of STM chip) pin and ground, which are connected,
Chip U7 starts the alarm of unit 5 of warning after detecting this variation.In addition, passing through the setting of control switch K1, even if target pair
As there is no unexpected emergency situation, target object can also press this control switch K1, to realize sound-light alarm and remote
The purpose of journey SMS alarm.
It should be understood that when the low and high level of PB8 (pin 29 of STM chip) can control buzzer U10 sounding and make alarm lamp
(third light emitting diode D6) is lighted.I.e. when single chip circuit 4 does not detect tumble behavior, the PB8 (pin of STM chip
29) it is in low level state, triode Q4 ends at this time, and sounding, third light emitting diode D6 do not extinguish buzzer U10；Work as list
When piece electromechanics road 4 detects tumble behavior, PB8 (pin 29 of STM chip) can be placed in high level state, at this time triode Q4
Conducting, buzzer U10 sounding, third light emitting diode D6 is lighted, to realize sound-light alarm, with attract people from periphery note that
And then it asks for help.This part is also provided with an independent key K1, when emergency case occurs, presses control switch K1, right
The PB15 pin and ground answered are connected, and are in low level state, after single chip circuit 4 detects this variation, starting alarm.
As shown in fig. 6, GPS circuitry 3 is made of NEO-6M-GPS chip U3, the data sending terminal of NEO-6M-GPS chip U3
Mouth (pin 2) and data receiver port (pin 2) are connected with single chip circuit 4 respectively.Specifically, NEO-6M-GPS chip U3
Data sending terminal mouth (pin 2) be connected with the pin 31 of STM chip U6, the data sending terminal mouth of NEO-6M-GPS chip U3
(pin 3) is connected with the pin 30 of STM chip U6.
It is understood that NEO-6M-GPS chip U3 has many advantages, such as high sensitivity, low-power consumption, miniaturization, it is high
Tracking sensitivity expand its working range, in the place that common GPS receiver module cannot position, as building intensively locates,
High accuracy positioning may be implemented in intensive jungle etc., NEO-6M-GPS chip U3.In addition, NEO-6M-GPS chip U3 utilizes serial ports
Instruction comprising latitude and longitude information is carried out signal transmission by serial ports and single chip circuit 4 by communication, and single chip circuit 4 only needs to solve
Corresponding latitude and longitude information is analysed, it is convenient to use.Wherein, NEO-6M-GPS chip U3 needs 5V power voltage supply, therefore,
The pin 1 of EO-6M-GPS chip U3 meets VBAT, and pin 4 is grounded, wraps in the information that GPS circuitry 3 is sent to single chip circuit 4
Containing latitude and longitude information, single chip circuit 4 parses longitude and latitude data, that is, can determine position when target object is fallen.
In addition, it should be noted that, short message circuit 6 may include that target object is fallen to the content that target terminal sends short message
When position latitude and longitude information, while can be that the coordinate that provides of developer is counter by Baidu map and look into tool, in the short message of transmission
Increase a link in content, clicking the link can jump in Baidu map, and the position of alarm is shown in Baidu map
In.It looks into tool in view of feedback latitude and longitude information and coordinate are counter and determines that target object is those skilled in the art by Baidu map
Known technical solution, therefore not expansion is described in detail in the present embodiment.It, can be after clickthrough meanwhile reference can be made to Fig. 7
The position of alarm is shown in Baidu map, is clearly grasped and is needed by the position of help personage in order to the object of target terminal,
Timely salvaging is unfolded.
As shown in figure 8, power supply circuit 1 includes MCP chip U2 (concrete model MCP73831T) and LP chip (particular type
Number be LP2985).Wherein, the peripheral circuit of MCP chip U2 includes supplying cell BT1 (5V rechargeable battery) and supplying cell BT1
Voltage detecting circuit 10 in parallel, the both ends of supplying cell are parallel with the 6th filter capacitor C5, and voltage detecting circuit 10 is by two
The divider resistance (R4 and R5) being serially connected is constituted, wherein the port that two divider resistances are serially connected and 4 phase of single chip circuit
Even (being specifically connected to the pin 10 of STM chip).
The peripheral circuit of MCP chip U2 further includes charging interface H1, and charging interface H1 (end VCC) passes through the 6th current-limiting resistance
The R2 and concatenated first detection pipe D1 of the 6th current-limiting resistance R2 (light emitting diode with pin 1 and pin 4) and MCP chip
The test side (pin 1) of U2 is connected, and the test side (pin 1) of MCP chip U2 is connected with the 7th current-limiting resistance R1, limits with the 7th
The concatenated second detection pipe D1 of leakage resistance R1 (light emitting diode with pin 2 and pin 3).Wherein, the first detection pipe D1
Cathode is connected with the test side of MCP chip U2, and the cathode ground connection of the second detection pipe D1, the first detection pipe and the second detection pipe
It is different to issue bright color.
It should be understood that can detect the charged state of power supply circuit 1 by the setting of two detection pipe D1, it is assumed that the first detection
Pipe is red light emitting diodes, and the second detection pipe is green LED, then in charging is constituted, red light emitting diodes point
It is bright, with to other people illustrate the power supply circuit be in charging in, after charging is full of, green LED is lighted, with to other people
Illustrate the power supply circuit 1 to charge to finish.In this way, by lighting different light emitting diodes convenient for the charging shape of understanding power supply circuit
State.
The input circuit and output circuit of LP chip U4 is by isolation capacitance, the 7th filter capacitor being connected with isolation capacitance
It constitutes, and is connected with self-lock switch K3 between the anode of supplying cell 1 and the anode of isolation capacitance.Specifically, isolation capacitance
C15 and the 7th filter capacitor C14 are in parallel and are connected to the input terminal of LP chip U4, wherein the pin 1 and pin of LP chip U4
3 are connected, and the anode of isolation capacitance C15 is connected to the pin 1 of LP chip U4, and the pin 2 of LP chip U4 is grounded, and isolation capacitance
The cathode of C15 is connected to the pin 2 of LP chip U4, and the pin 2 of LP chip U4 is grounded.The anode of isolation capacitance C17 is connected to
The pin 5 of LP chip U4, and the pin 5 of LP chip U4 connects power supply (3.3V), the cathode ground connection of isolation capacitance C17, LP chip
The filter capacitor C16 of one ground connection of the connection of pin 4 of U4, wherein can an in parallel filter capacitor at the both ends of isolation capacitance C17
C18.It should be noted that the value of isolation capacitance involved in the embodiment of the present invention all can be 10uf, related filter
The value of wave capacitor all can be 0.1uf.
The working principle of alarm of the invention can be with are as follows:
Firstly, by power supply circuit 1 respectively to accelerometer 2, GPS circuitry 3, single chip circuit 4, warn unit 5, short message
Circuit 6 is powered.The acceleration information that accelerometer 2 will test is continuously transmitted to STM chip U6, the STM core of single chip circuit 4
Piece U6 is converted into angle-data by trigonometric function.
Secondly, GPS circuitry 3 constantly sends instructions to the STM chip U6 of single chip circuit 4, believe in instruction comprising longitude and latitude
Breath, 4 pair warp and weft degree information of single chip circuit parse longitude and latitude data, and when showing that wearer falls according to big data analysis
The speed of change of pitch angle value and change of pitch angle, due to having standard value, the inclination angle that wearer generates when falling in single-chip microcontroller electric current 4
Delta data (change of pitch angle value and change of pitch angle speed) is compared with standard value, to determine the hair of tumble behavior according to comparison
It is raw, to effectively avoid due to erroneous judgement caused by the movement such as bend over.
Furthermore determine tumble behavior occur after warn unit 5 work, acousto-optic attract with alarm other people note that
Short message circuit 6 works simultaneously, sends short message to designated mobile phone number, short message content includes that the longitude and latitude of target object tumble position is believed
Breath, meanwhile, it is the coordinate inverse check function that developer provides by Baidu map, increases a Baidu map chain in short message content
It connects, after point is entered, tumble person position can be checked in Baidu map, in this way, realizing what onsite alarming and remote short messages were alarmed
Purpose, since short message content can show latitude and longitude information and the link of embedded Baidu map, can be quasi- convenient for the short message person of checking and accepting
Position that is true and readily obtaining target object, to make target object get help in time.
Alarm arrangement of the invention is simple, at low cost, since alarm detects target object by accelerometer 2
Change of pitch angle situation, and the change of pitch angle amount and change of pitch angle speed when target object is fallen are obtained according to big data analysis, it deposits
Enter in single chip circuit 4, with true according to the comparison for measuring change of pitch angle amount and change of pitch angle speed and the standard value of deposit
The object that sets the goal is fallen, at this point, control is warned, unit 5 generates sound-light alarm, and to periphery, people asks for help, while basis
GPS circuitry 3, which can obtain falling, occurs the longitude and latitude of position, then is sent short messages by short message circuit 6 to designated mobile phone, informs target pair
Longitude and latitude when as falling, and be the coordinate inverse check function that developer provides by Baidu map, a link is produced, it can be in mesh
Mark terminal Baidu map interface in check, can accurate judgement obtain target object occur tumble behavior location information, in this way,
It can be achieved at the same time the sound-light alarm at scene and send the function of SMS alarm, function is superior, and it is practical, have and preferably pushes away
Wide use value.
In addition, can also increase a key warning function, when other discomforts occurs in the body of target object, target pair
As that the function of scene and remote alarms can be realized, to people with mobility problems or need to be looked after people by pressing alarm keys
The life of scholar brings more safety guarantee.
The series of detailed descriptions listed above only for feasible embodiment of the invention specifically
Protection scope bright, that they are not intended to limit the invention, it is all without departing from equivalent implementations made by technical spirit of the present invention
Or change should all be included in the protection scope of the present invention.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (10)
1. a kind of alarm, it is characterised in that:
Accelerometer, the acceleration value for detected target object movement；
Single chip circuit is connected with the accelerometer, for obtaining the inclination of the target object based on the acceleration value
Angle, to determine whether the target object falls based on the tilt angle；
GPS circuitry is connected with the single chip circuit, and the GPS circuitry is used to acquire the latitude and longitude information of the target object,
And the latitude and longitude information is sent to the single chip circuit, to be based on the latitude and longitude information by the single chip circuit
Determine the position of the target object；
It warns unit, is connected with the single chip circuit, for warning when determining that the target object is fallen to other people；
And
Short message circuit is connected with the single chip circuit, for when determining that the target object is fallen to target terminal
Send the latitude and longitude information.
2. alarm according to claim 1, which is characterized in that the short message circuit includes SIM chip and the SIM
The voltage conversion circuit that chip is connected and is connected with the communication port of the single chip circuit, the voltage conversion circuit is used for will
The voltage of the data port of the SIM chip is converted to the voltage that the single chip circuit is able to bear, the data port packet
Include data sending terminal mouth and data receiver port；
Wherein, the voltage conversion circuit by first resistor, second resistance, 3rd resistor, the 4th resistance, the first triode and
Second triode is constituted, and the emitter of first triode is connected with the data sending terminal mouth, the data receiver port
It is sequentially connected first resistor, 3rd resistor, the base stage of first triode, the collector of first triode is sequentially connected
The collector of the base stage of 4th resistance, second triode, second triode be connected with the first resistor and with institute
It states 3rd resistor to be connected, the collector of first triode is connected by the second resistance with the single chip circuit, institute
The emitter for stating the second triode is connected with the single chip circuit.
3. alarm according to claim 2, which is characterized in that the short message circuit further includes SMF chip, the SMF
The reseting port of chip is connected with the reset terminal of the SIM chip, clock port and the SIM chip of the SMF chip
Clock end is connected；
The short message circuit further includes the start-up circuit being made of starting triode and current-limiting resistance, the hair of the starting triode
The base stage of emitter grounding, the starting triode is connected to power supply, the current collection of the starting triode by the current-limiting resistance
Pole is connected with the start end of the SIM chip.
4. alarm according to claim 2, which is characterized in that the short message circuit further includes first detection unit and
Two detection units, the first detection unit are made of the first current-limiting resistance and the first light emitting diode, and second detection is single
Member is made of the second current-limiting resistance and the second light emitting diode；
Wherein, the indicator light interface of the SIM chip is connected with one end of first current-limiting resistance, first current-limiting resistance
The other end be connected with the anode of first light emitting diode, the cathode of first light emitting diode ground connection；
The serial line interface of the SIM chip is connected with one end of second current-limiting resistance, second current-limiting resistance it is another
End is connected with the anode of second light emitting diode, the cathode ground connection of second light emitting diode.
5. alarm according to claim 1, which is characterized in that the single chip circuit include STM chip, with it is described
The program debugging download circuit of STM chip communication connection, the peripheral circuit of the STM chip include clock circuit and isolation electricity
Road；
Wherein, the clock circuit is made of quartz crystal oscillator and two resonant capacitances, and the clock circuit passes through the quartz
The both ends of crystal oscillator are connected with the STM chip；
The isolation circuit is made of electrolytic capacitor, the first filter capacitor in parallel with the electrolytic capacitor, the electrolytic capacitor
Anode be connected with the first power port of the STM chip, the cathode of the electrolytic capacitor is grounded.
6. alarm according to claim 5, which is characterized in that the peripheral circuit of the STM chip further includes by third
The first filter circuit that current-limiting resistance, the second filter capacitor are constituted, the second filter circuit being made of two third filter capacitors,
The third filter circuit being made of two the 4th filter capacitors, and the 4th filter circuit being made of the 5th filter capacitor；Its
In,
The first end of the third current-limiting resistance is connected with the second source port of the STM chip, the third current-limiting resistance
Second end be connected with the first end of second filter capacitor, and the second end of the third current-limiting resistance is connected with a ground connection
Switch, second filter capacitor second end ground connection；
The both ends of one of third filter capacitor respectively with the third power port of the STM chip, the 4th power port phase
Even, the third filter capacitor of another ground connection is connected with the 4th power port of the STM chip, and the 4th power port and electricity
Source is connected, third power port ground connection；
Described two 4th filter capacitors are in parallel, and one end of two the 4th filter capacitor parallel connections is connected to the STM chip
The 5th power port, the other end of two the 4th filter capacitor parallel connections is connected to the 6th power port of the STM chip；
The first end of 5th filter capacitor is grounded and is connected with the 7th power port of the STM chip, the 5th filter
The second end of wave capacitor is connected to the 8th power port of the STM chip.
7. alarm according to claim 1, which is characterized in that the unit of warning is by buzzer, third light-emitting diodes
Pipe, third transistor, general-purpose diode, the 4th current-limiting resistance and the 5th current-limiting resistance are constituted；
Wherein, the base stage of the third transistor is connected by the 4th current-limiting resistance with the single chip circuit, and the described 3rd 3
The emitter of pole pipe is grounded, the collector of the third transistor respectively with the cathode of the buzzer, the general-purpose diode
Positive, described third light emitting diode cathode be connected, the buzzer anode and the general-purpose diode cathode phase
Even, the anode of the third light emitting diode is connected by the 5th current-limiting resistance with the anode of the buzzer；
The single chip circuit includes a control switch, determines whether to warn described in starting with the state by the control switch
Unit is warned.
8. alarm according to claim 1, which is characterized in that further include power supply unit, said supply unit includes MCP
Chip and LP chip；Wherein,
The peripheral circuit of the MCP chip includes supplying cell, the voltage detecting circuit in parallel with the supplying cell, the confession
The both ends of battery are parallel with the 6th filter capacitor, and the divider resistance that the voltage detecting circuit is serially connected by two is constituted,
Wherein, the port that two divider resistances are serially connected is connected with the single chip circuit；
The peripheral circuit of the MCP chip further includes charging interface, the charging interface by the 6th current-limiting resistance, with described the
Concatenated first detection pipe of six current-limiting resistances is connected with the test side of the MCP chip, and the test side connection of the MCP chip
There are the 7th current-limiting resistance and concatenated second detection pipe of the 7th current-limiting resistance.
9. alarm according to claim 8, it is characterised in that:
The input circuit and output circuit of the LP chip are by isolation capacitance, the 7th filtered electrical being connected with the isolation capacitance
Hold and constitute, and the positive of the supplying cell is connected with self-lock switch between the anode of the isolation capacitance.
10. alarm according to claim 1, which is characterized in that
The accelerometer is made of ADX chip, and the bidirectional data communication interface and interface clock signal of the ADX chip
It is connected respectively with the single chip circuit；
The GPS circuitry is made of NEO-6M-GPS chip, and the data sending terminal mouth and data of the NEO-6M-GPS chip connect
Receiving end mouth is connected with the single chip circuit respectively.
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| CN201910878876.9A CN110517451A (en) | 2019-09-18 | 2019-09-18 | A kind of alarm |
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| CN201910878876.9A CN110517451A (en) | 2019-09-18 | 2019-09-18 | A kind of alarm |
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Application publication date: 20191129 |