CN104952184A - Bi-directional wireless intelligent door magnetic detector - Google Patents
Bi-directional wireless intelligent door magnetic detector Download PDFInfo
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- CN104952184A CN104952184A CN201510402008.5A CN201510402008A CN104952184A CN 104952184 A CN104952184 A CN 104952184A CN 201510402008 A CN201510402008 A CN 201510402008A CN 104952184 A CN104952184 A CN 104952184A
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/02—Mechanical actuation
- G08B13/08—Mechanical actuation by opening, e.g. of door, of window, of drawer, of shutter, of curtain, of blind
Abstract
The invention discloses a bi-directional wireless intelligent door magnetic detector. The bi-directional wireless intelligent door magnetic detector comprises a cylinder and door magnetic switch combination body, a wireless door magnetic sensor and a door magnetic alarm, wherein the wireless door magnetic sensor comprises a door magnetic sensor, door closing and opening circuits, a power module, an MCU (microprogrammed control unit), a voltage-stabilizing and filtering circuit, a Wi-Fi (wireless fidelity) module power supply control circuit, a clock circuit and a low-voltage detection circuit; an input end of the door magnetic sensor is divided into two paths, one path is electrically connected with the door closing circuit and the clock circuit, and the other path is electrically connected with the door opening circuit and the MCU through the voltage-stabilizing and filtering circuit; the voltage-stabilizing and filtering circuit and the MCU form a closed loop through the Wi-Fi module power supply control circuit and a Wi-Fi module; an output end of the door magnetic sensor is electrically connected with the MCU through the door closing circuit and the door opening circuit. The bi-directional wireless intelligent door magnetic detector solves the problems that a detector in the prior art is high in cost, large in size, complicated in circuit and high in power consumption and a battery can only support the detector for a few days, can detect the opening and closing states of doors, windows and drawers, and has the advantages of low power consumption, low cost and small size.
Description
Technical field
The present invention relates to a kind of be mainly used in using in intelligent household security system door status sensor or detector, particularly double-direction radio Intelligent door magnetic detector.
Background technology
In Gate-ban Monitoring System of Home House, whether door magnetic detector is used to detection door, window, drawer etc. and is illegally opened or the burglar alarm of movement, or be installed on door and door pocket, switch is installed within doors, coordinate the warning device that automatic door closer uses, office space, workplace, family's monitoring illegal act, safing the first line of defence.The common effect of door status switch is that responsible door magnetic flux electricity is no, energising band magnetic (closing door), power-off demagnetization (enabling), and door abampere is loaded on door and door pocket, and switch is installed within doors, coordinates automatic door closer to use.Warning device generally can be divided into door status switch, door status sensor or detector, door magnetic alarm three parts.Door magnetic detector is divided into wired magnetic and wireless door magnetic, and wired magnetic or wireless door magnetic sensor are Inductive door/window foldings, send wired normally closed/device of normal open switch signal.Adopt the magnetic detector of wired connection mode, its weak point be fit up install in complete building body not very convenient, also bad detection of breaking down.Wireless door magnetic sensor is used for the on off state of control door, and after when door, no matter which kind of reason is opened, specific radiowave launched immediately by wireless door magnetic sensor, reports to the police at a distance to main frame.Wireless door magnetic is made up of wireless launcher and magnetic patch two parts.Two arrow places are had to have the components and parts of " tongue tube S2 " at wireless transmitter module, when the distance of magnet and tongue tube S2 remains in 1.5 centimetres, tongue tube S2 is in off-state, the distance be separated with tongue tube S2 once magnet is more than 1.5 centimetres, tongue tube S2 will close, cause short circuit, while alarm lamp is bright, launch alerting signal to main frame.The wireless alarm signal of wireless door magnetic can transmit 200 meters in open ground, can transmit 20 meters in general house, closely related with the environment of surrounding.Wireless door magnetic generally adopts power saving to design, its not transmitted radio signal when the door closes, now power consumption only has several microampere, when the moment that door is opened, launch the wireless alarm signal of about 1 second immediately, then stop voluntarily, even if at this moment door is opened and also can not be transmitted again always, this affects warning to prevent transmitter sequential filming from causing internal cell electricity to exhaust, wireless door magnetic is also designed with battery low-voltage testing circuit, when the voltage of battery is lower than 8 volts, the LP light emitting diode of below will be lighted, at this moment need to change A23 alarm reserve battery immediately, otherwise the reliability of warning can be affected.Wireless door magnetic sensor is generally arranged on the top of an inner side, it is made up of two parts: less parts are permanent magnet, there is one block of permanent magnet inside, be used for producing constant magnetic field, larger is without door magnetic main body, there is the tongue tube S2 of an open type its inside, when permanent magnet and tongue tube S2 lean on very near (being less than 5 millimeters), wireless door magnetic sensor is in work stand-by state, after permanent magnet leaves tongue tube S2 certain distance, the high frequency radio signal of the 315MHZ comprising geocoding and self identification code (namely numeric data code) launched immediately by wireless door magnetic sensor, dash receiver is same warning system by identifying that the address code of this radio signal judges whether, then according to self identification code (namely numeric data code), determine it is which wireless door magnetic is reported to the police.
At present, the door magnetic detector used on the market is unidirectional door status sensor mostly, and unilateral gate Magnetic Sensor can only detect open mode, and can not detect the information of closed condition.Prior art is arranged on opening of doors and windows place, be used for detecting the opening of door and window, realize often opening by Wi-Fi module and once all send alerting signal to main frame, when door magnetic is deployed troops on garrison duty, the door magnetic detector that main frame will be reported to the police, primarily of power module, door magnetic induction switch module, central processing module, rf modulations transmitter module and low voltage detecting module form or adopt door magnetic machine, Cloud Server, handheld terminal, WIFI router composition, the weak point of the central processing module that this wireless intelligent door magnetic system adopts is, central processing module adopts ARM chip cost height volume large, complex circuit designs, power consumption is large, battery can only support several days.But all adopt the ARM chip of high cost to realize above-mentioned functions.
Summary of the invention
The object of the invention is, complex circuit designs high for above-mentioned prior art cost, the weak point that power consumption is large, a kind of compact is provided, low in energy consumption, circuit is simple, with low cost, easy for installation, the double-direction radio Intelligent door magnetic detector that can be connected by network, formation network alarm system detection door and window, Home furniture, office appliance drawer open or close the double-direction radio Intelligent door magnetic detector of state.
Above-mentioned purpose of the present invention can be reached by following measures, a kind of double-direction radio Intelligent door magnetic detector, comprise magnetic post door status switch assembly, wireless door magnetic sensor and door magnetic alarm, it is characterized in that: described wireless door magnetic sensor is by door status sensor, close gate circuit, enabling circuit, power module, microcontroller, filter circuit of pressure-stabilizing, Wi-Fi module power-supplying circuit, clock circuit and low-voltage detection circuit composition, wherein, door status sensor input end is divided into two-way, gate circuit and clock circuit are closed in one tunnel electrical connection, filter circuit of pressure-stabilizing of separately leading up to electrical connection enabling circuit and microcontroller, filter circuit of pressure-stabilizing passes through Wi-Fi module power-supplying circuit and Wi-Fi module and microcontroller and forms closed loop, door status sensor output terminal is by closing gate circuit, enabling circuit electrical connection microcontroller.
In said structure, described battery is rechargeable battery, and under normal circumstances, battery charging once can use six months, and stand-by time reaches more than 5 years.
In said structure, described microcontroller, employing be a kind of singlechip chip in the STC series of macrocrystalline, this microcontroller has multiple external interrupt, and power-down mode can be waken up by external interrupt and Special timer.
In said structure, the data communication between described Wi-Fi module and microcontroller is two-way.
When door, window, drawer are opened or close, door status sensor detects This move, produce corresponding signal and send microcontroller to, microcontroller processes signal, then signal is sent to Wi-Fi module, Wi-Fi module sends radio alarming information, at this moment will know the state that door, window, drawer are opened or close.
The present invention has following beneficial effect compared to prior art.
Compact, low in energy consumption, circuit is simple.The present invention adopts magnetic post door status switch assembly, wireless door magnetic sensor and door magnetic alarm to form detecting gate, window, drawer can open and close the double-direction radio Intelligent door magnetic detector of state, and compact, low in energy consumption, circuit theory is simple.Because adopted microcontroller is little compared to prior art ARM chip by 1/3rd, cost is lower than ARM chip several times, peripheral circuit is simple, power consumption is little, whole volume can reduce to few 1/4th, thus overcoming that prior art cost height volume is large, complex circuit designs, power consumption is large, and battery can only support the defect of several days.
Easy for installation.Because whole volume reduces, install easily, send signal by wireless door magnetic sensor, can realize fitting up convenient in complete building body installation.
Two-way data communication can be realized.The present invention adopts filter circuit of pressure-stabilizing to form closed loop by Wi-Fi module power-supplying circuit and Wi-Fi module and microcontroller and realizes two-way data communication, alarm mode transmission warning message based on internet leads over common SMS alarm completely, not only on main frame without the need to additionally adding plug sim card, even if Ipad, IPod touch of the common WIFI version of receiving end one also successfully can receive warning message, completely unconventional in short breath warning transmission mode, use also more convenient.
Hiding host formula tamper button: back hides contact button, can prevent robber from dismantling, and reports to the police immediately, meet the standard of zero tolerance once trigger.
Effectively avoid failing to report alert, false alarm.The present invention is different from the superregeneration technology that other products adopt, the superhet radiating circuit of employing, and signal is more reliable and stable, effectively avoids failing to report alert, false alarm; Anti-interference: adopt 24 position digital coding chips, each main frame has absolute coding, has fabulous antijamming capability, effectively avoid going here and there code; Coordinated signals: be different from conventional detector and can only send alert notice, upgrade to global function version, also carries out interlock reaction by main frame, once illegal invasion can allow light all open, door and window is closed, or allows watch-dog real time record.
Accompanying drawing explanation
Fig. 1 is the circuit block diagram of double-direction radio Intelligent door magnetic detector of the present invention.
Fig. 2 is the circuit theory schematic diagram of Fig. 1 door status sensor, enabling circuit and pass gate circuit.
Implementation process of the present invention is by embodiment and accompanying drawing explanation.
Embodiment
Consult Fig. 1.In following description most preferred embodiment, double-direction radio Intelligent door magnetic detector, mainly comprises magnetic post door status switch assembly, wireless door magnetic sensor and door magnetic alarm.Described wireless door magnetic sensor is made up of door status sensor, pass gate circuit, enabling circuit, power module, microcontroller, filter circuit of pressure-stabilizing, Wi-Fi module power-supplying circuit, clock circuit and low-voltage detection circuit, wherein, door status sensor input end is divided into two-way, gate circuit and clock circuit are closed in one tunnel electrical connection, filter circuit of pressure-stabilizing of separately leading up to electrical connection enabling circuit and microcontroller, filter circuit of pressure-stabilizing passes through Wi-Fi module power-supplying circuit and Wi-Fi module and microcontroller and forms closed loop;
Door status sensor output terminal is by closing gate circuit, enabling circuit electrical connection microcontroller.Power module comprises, and is connected to the filter circuit of pressure-stabilizing between battery compartment and battery charger, and the low-voltage detection circuit of electrical connection battery compartment, and low-voltage detection circuit is connected electrically between battery compartment and microcontroller.Microcontroller can be one chip microcomputer (Single Chip Microcomputer), be called for short single-chip microcomputer or microprocessor MPU, be by the CPU of computing machine, RAM, ROM, timing number device and multiple I/O Interface integration on one chip, form the computing machine of chip-scale.Processor is often referred to, the chip of microcontroller and this three types of digital signal processor.This microprocessor chip can be the 68K series of Motorola and the X86 series of Intel.The STC series monolithic chip that the microcontroller of the present embodiment can adopt macrocrystalline company to produce.Described microcontroller, operating voltage range in the macrocrystalline STC series of Shenzhen can be adopted wide, RAM data-carrier store is had in sheet, do not need external crystal-controlled oscillation, do not need external reset circuit, support that power down wakes up, have inner power down to wake Special timer up, Flash program storage, EEPROM in Large Copacity sheet, multichannel 10 high-speed ADCs, multiple timer, Multi-serial port, multichannel external interrupt, multichannel I/O mouth, multiple timer, support the single-chip microcomputer of power-down mode and idle pulley, wherein MCU power-down mode power consumption is less than 0.1uA.Inner power down is had to wake Special timer up in single-chip microcomputer, can convenient bidirectional wireless intelligent door magnetic detector when initiatively carrying out timing pair with Cloud Server.Close gate circuit to be connected with the external interrupt of MCU respectively, decline source is triggered effectively.Data communication between Wi-Fi module and microcontroller is two-way.When door, window, drawer are opened or close, door status sensor and interlock circuit detect This move, produce corresponding signal and send microcontroller to, microcontroller processes signal, then signal is sent to Wi-Fi module, Wi-Fi module sends radio alarming information, at this moment will know the state that door, window, drawer are opened or close.
The clock chip that clock circuit adopts can accurate recording open and close door time of origin, the Low-power Clock Chip of SLM series when can be undertaken pair by cloud server.Indoor design has one to have for user provides the battery power detection circuit of battery level information and low electricity prompting function.
Enabling circuit, close gate circuit and be connected with the external interrupt of MCU respectively, decline source is triggered effectively.Data communication between Wi-Fi module and microcontroller is two-way.When door, window, drawer are opened or close, door status sensor and interlock circuit detect This move, produce corresponding signal and send microcontroller to, microcontroller processes signal, then signal is sent to Wi-Fi module, Wi-Fi module sends radio alarming information, and at this moment people will know the state that door, window, drawer are opened or close.
Pass gate circuit, enabling circuit are all connected with door status sensor.Control circuit, all connected filter circuit of pressure-stabilizing of clock circuit that pass gate circuit, enabling circuit, microcontroller, Wi-Fi module are powered.Battery compartment is connected charging circuit.Electric quantity detecting circuit is that low-voltage detection circuit is connected in battery compartment.Wi-Fi module, pass gate circuit, enabling circuit, Wi-Fi module are controlled by control circuit.Clock circuit, battery low-voltage testing circuit, microcontroller are connected key circuit.Key circuit is made up of button and three-color LED driving circuit, and key circuit coordinates microcontroller to be configured Wi-Fi module, accesses wireless router fast, allows validated user register double-direction radio Intelligent door magnetic detector at the Cloud Server of specifying; At Cloud Server, withdraw a garrison setting and the setting of withdrawing a garrison of double-direction radio Intelligent door magnetic detector of double-direction radio Intelligent door magnetic detector is put.
Key circuit is made up of button and three-color LED driving circuit, and button effect has three kinds:
(1) coordinate the circuit of microcontroller that user can be facilitated to be configured Wi-Fi module by handheld device, make Wi-Fi module access wireless router fast, allow the Cloud Server that validated user is being specified register;
(2) to the validated user of double-direction radio Intelligent door magnetic detector after the Cloud Server of specifying is registered, can to withdraw a garrison setting to withdraw a garrison setting and double-direction radio Intelligent door magnetic detector of double-direction radio Intelligent door magnetic detector at Cloud Server;
(3) to double-direction radio Intelligent door magnetic detector validated user after the Cloud Server of specifying carries out lawful registration, can to set up defences setting to set up defences setting and double-direction radio Intelligent door magnetic detector of double-direction radio Intelligent door magnetic detector at Cloud Server; Three-color LED driving circuit is used for the button operation prompting of double-direction radio Intelligent door magnetic detector and the state instruction etc. of open and close door.The concrete device of double-direction radio Intelligent door magnetic detector main frame is made up of magnetic post, door status sensor, pass gate circuit, key circuit, enabling circuit, filter circuit of pressure-stabilizing, battery, charging circuit, low-voltage detection circuit, Wi-Fi module power-supplying circuit, clock circuit, microcontroller, Wi-Fi module.
Consult Fig. 2.In said structure, composition graphs 1, Fig. 2 further illustrate, double-direction radio Intelligent door magnetic detector main frame is in circuit design, full employing low energy-consumption electronic device, MCU peripheral circuit all adopts low power dissipation design, the peripheral circuit relevant to the I/O of MCU is all high level after the power-up, this guarantees product power on after MCU can enter low-power consumption power-down mode.Door status sensor can select tongue tube S2, low-power consumption power-down mode can be entered after main frame powers on, after product introduction low-power consumption power-down mode, the output high level of enabling circuit and pass gate circuit also enters power-down mode automatically, as long as magnetic post is close to it in certain distance, reed pipe two contacts will be pulled together.
In the gate circuit of pass, be connected electrically in as shown in Figure 2, when tongue tube S2 becomes closure state from off-state at closing time, contact C high level signal between diode D3 with transistor Q2 base stage is produced by Q2 collector contact D electric capacity C8 in parallel and stake resistance R20 and sparks, drag down the indirection point E current potential of electric capacity C8 and transistor Q4 base stage instantaneously, Q4 saturation conduction, flow through Q4 emitter current is input to transistor Q6 base stage through Q4 collector series resistance R18, make Q6 saturation conduction, contact F current potential moment between Q6 collector series resistance R16 is dragged down, produce a negative edge single pulse signal, there is the logical electric capacity C8 contact E current potential exchanging stopping direct current effect also drawn high instantaneously by resistance R14 in parallel on Q2 loop, Q4 is cut off with the Q6 be connected by resistance R18, contact F current potential moment between Q6 collector electric connection resistance R16 is drawn high by R16, the pulse width of this monopulse negative edge is determined by the stake resistance R20 parameter of above-mentioned isolation capacitance C8 and electrical connection thereof.The pulse width of the present embodiment monopulse negative edge is designed to about 100us, this negative edge pulse signal contact F output terminal INT1 transfers to the external interrupt INT1 of MCU, it makes MCU produce look-at-me of closing the door, MCU is closed the door after look-at-me wakes up, by the low-voltage detection circuit of its ADC pin electrical connection, voltage acquisition is carried out to the voltage of battery, MCU obtains lockup from clock circuit, MCU being electrically connected again by the RS-232 of self serial ports RS-232 and WIFI module, MCU will close the door relevant information, battery voltage information, the information such as lockup are through the RS-232 of MCU, WIFI module and router are sent to cloud server and carry out stored record, whether cloud server passes through network by relevant information according to the demand of user, phone, micro-letter, QQ, mail, short message mode is pushed to user mobile phone or local alarm, after MCU information sends and terminates, MCU is when without external interrupt, MCU is by stopping powering to WIFI module and associated peripheral circuits to the control of WIFI module power-supplying circuit, complete machine enters low-power consumption power-down mode again.
Door status sensor is connected in parallel on enabling circuit and closes between gate circuit, during enabling, tongue tube S2 contact as door status sensor disconnects, cut-off signal is transferred to pass gate circuit, the base stage of transistor Q2 is transferred to by diode D3, the contact C making to be connected in parallel on diode D3 and be transferred to grounding shunt resistance R1 between transistor Q2 becomes electronegative potential, now Q2 saturation conduction, contact D point between Q2 emitter junction and stake resistance R20 becomes noble potential, and through contact D connect electric capacity C8, between electric capacity C8 and transistor Q4 base stage, parallel resistance R14 contact E also becomes noble potential, now be connected with via resistance in series R18 and shunt capacitance C10 thereof the transistor Q6 of base stage of transistor Q4 ends, Q6 collector and resistance in series R16 contact F circuit export and keep high level constant.
During enabling, enabling circuit enters off-state by closure state due to tongue tube S2, tongue tube S2 is electronegative potential by the contact A between diode D6 and stake resistance R19, the isolation capacitance C7 be connected electrically between contact B and transistor Q3 base stage is discharged by parallel resistance R19, resistance R19 was dragged down by the contact B current potential moment be connected electrically between isolation capacitance C7 and transistor Q3 base stage, Q3 saturation conduction, flow through Q3 emitter current is transferred to transistor Q5 base stage through the resistance R17 that Q3 collector is electrically connected, Q5 is by direct earth capacitance C9 saturation conduction in parallel between base stage with emitter, contact G current potential between Q5 collector and resistance R15 drags down generation negative edge pulse signal instantaneously, now, position contact A and the isolation capacitance C7 between contact B logical exchange the effect of stopping direct current under, the resistance R13 that contact B current potential is also connected electrically between contact B and power supply VCC draws high instantaneously, make to be connected electrically in resistance R15, Q3, Q3 on resistance R17 and Q5 loop, Q5 ends, contact G current potential moment between Q5 collector and resistance R15 is drawn high by resistance R15 again.The pulse width of this monopulse negative edge that the moment that contact G produces drags down is determined by the stake resistance R19 parameter of above-mentioned isolation capacitance C7 and electrical connection thereof.The pulse width of the present embodiment monopulse negative edge is designed to about 100us.Above-mentioned negative edge pulse signal contact G output terminal INT2 transfers to MCU, MCU is made to produce enabling look-at-me, MCU is opened the door after look-at-me wakes up, the low-voltage detection circuit be connected by its ADC pin carries out voltage acquisition to the voltage of battery, opening time is obtained from clock circuit, simultaneously again by the WIFI module that self serial ports RS-232 is connected, the information such as enabling relevant information, battery voltage information, opening time are sent to cloud server through serial ports RS-232, WIFI module and router and carry out stored record.Whether cloud server is pushed to user mobile phone or local alarm by relevant information by network, phone, micro-letter, QQ, mail and short message mode according to the demand of user.After MCU information sends and terminates, when without external interrupt, by stopping the power supply to WIFI module to the control of WIFI module power-supplying circuit, enter low-power consumption power-down mode.
Need before the use to carry out lawful registration to this double-direction radio Intelligent door magnetic detector at appointment cloud server, after lawful registration, by button, double-direction radio Intelligent door magnetic detector is withdrawn a garrison and set up defences setting.When being set to withdraw a garrison, any information of relevant open and close door is not sent to Cloud Server to double-direction radio Intelligent door magnetic detector.When being set to set up defences, if magnetic post close to it in certain distance, tongue tube S2 two contacts will be pulled together, and enabling circuit is exported and keeps high level constant, close gate circuit and export the monopulse negative edge pulse signal of one fixed width.Wherein, battery is rechargeable battery, and under normal circumstances, electricity time charging once can use six months.
Claims (10)
1. a double-direction radio Intelligent door magnetic detector, comprise magnetic post door status switch assembly, wireless door magnetic sensor and door magnetic alarm, it is characterized in that: described wireless door magnetic sensor is by door status sensor, close gate circuit, enabling circuit, power module, microcontroller, filter circuit of pressure-stabilizing, Wi-Fi module power-supplying circuit, clock circuit and low-voltage detection circuit composition, wherein, door status sensor input end is divided into two-way, gate circuit and clock circuit are closed in one tunnel electrical connection, filter circuit of pressure-stabilizing of separately leading up to electrical connection enabling circuit and microcontroller, filter circuit of pressure-stabilizing passes through Wi-Fi module power-supplying circuit and Wi-Fi module and microcontroller and forms closed loop, door status sensor output terminal is by closing gate circuit, enabling circuit electrical connection microcontroller.
2. double-direction radio Intelligent door magnetic detector according to claim 1, it is characterized in that: described door status sensor is tongue tube S2, when magnetic post shifts near tongue tube S2 from away from tongue tube S2 two contact off-state, in coverage, tongue tube S2 two contact is pulled together, it is constant that enabling circuit exports maintenance high level, closes the monopulse negative edge letter that gate circuit exports a generation duration 100us, gets back to high level by closing gate circuit output.
3. double-direction radio Intelligent door magnetic detector according to claim 2, it is characterized in that: monopulse negative edge signal drives MCU to wake up from power-down mode, MCU produces the control signal of a conducting Wi-Fi module power-supplying circuit, power to Wi-Fi module, lockup is obtained by clock circuit, battery electric quantity is obtained from battery power detection circuit, MCU by carry serial ports again by the information of closing the door and close the door information occur time and battery electric quantity, cloud server is passed to through router by Wi-Fi module, cloud server is preserved these information and maybe this information is passed through network, phone, micro-letter, QQ, mail and short message mode are pushed to user mobile phone or local alarm.
4. double-direction radio Intelligent door magnetic detector according to claim 1, it is characterized in that: when magnetic post from tongue tube S2 two contact closure condition away from tongue tube S2 time, tongue tube S2 two contact disconnects, closing gate circuit output keeps high level constant, enabling circuit exports the monopulse negative edge signal supply MCU external interrupt of a generation duration 100us, exported by enabling circuit and get back to high level, the MCU external interrupt signal that opened the door wakes up from power-down mode, control Wi-Fi module power-supplying circuit to power to Wi-Fi module, opening time is obtained from clock circuit, battery electric quantity is obtained from battery power detection circuit, the time that enabling information and enabling information are occurred by serial ports by MCU again and battery electric quantity pass to cloud server by Wi-Fi module through router, cloud server is preserved these information and maybe this information is passed through network, phone, micro-letter, QQ, mail and short message mode are pushed to user mobile phone or local alarm.
5. double-direction radio Intelligent door magnetic detector according to claim 1, it is characterized in that: microcontroller adopts operating voltage range in STC series wide, RAM data-carrier store is had in sheet, do not need external crystal-controlled oscillation, do not need external reset circuit, support power down wakes up, inner power down is had to wake Special timer up, Flash program storage, EEPROM in Large Copacity sheet, multichannel 10 high-speed ADCs, multiple timer, Multi-serial port, multichannel external interrupt, multichannel I/O mouth, multiple timer, support the single-chip microcomputer of power-down mode and idle pulley, wherein MCU power-down mode power consumption is less than 0.1uA.
6. double-direction radio Intelligent door magnetic detector according to claim 1, is characterized in that: the clock chip that clock circuit adopts is can accurate recording open and close door time of origin, the Low-power Clock Chip of SLM series when to be undertaken pair by cloud server.
7. double-direction radio Intelligent door magnetic detector according to claim 1, is characterized in that: the data communication between described Wi-Fi module and microcontroller is two-way.
8. double-direction radio Intelligent door magnetic detector according to claim 1, it is characterized in that: at closing time, magnetic post is by during away from tongue tube S2 to close tongue tube S2, tongue tube S2 two contact is from off-state to closure state, in the gate circuit of pass, contact C high level signal between diode D3 with transistor Q2 base stage is produced by Q2 collector contact D electric capacity C8 in parallel and stake resistance R20 and sparks, drag down the indirection point E current potential of electric capacity C8 and transistor Q4 base stage instantaneously, Q4 saturation conduction, flow through Q4 emitter current is input to transistor Q6 base stage through Q4 collector series resistance R18, make Q6 saturation conduction, contact F current potential moment between Q6 collector series resistance R16 is dragged down, produce a negative edge single pulse signal, there is the logical electric capacity C8 contact E current potential exchanging stopping direct current effect also drawn high instantaneously by resistance R14 in parallel on Q2 loop, Q4 is cut off with the Q6 be connected by resistance R18, contact F current potential moment between Q6 collector electric connection resistance R16 is drawn high by R16, the pulse width of this monopulse negative edge is determined by the stake resistance R20 parameter of above-mentioned isolation capacitance C8 and electrical connection thereof.
9. double-direction radio Intelligent door magnetic detector according to claim 1, it is characterized in that: in enabling circuit, when magnetic post is away from tongue tube S2, tongue tube S2 two contact is from closure state to off-state, tongue tube S2 is electronegative potential by the contact A between diode D6 and stake resistance R19, the isolation capacitance C7 be connected electrically between contact A and transistor Q3 base stage is discharged by parallel resistance R19, resistance R19 was dragged down by the contact B current potential moment be connected electrically between isolation capacitance C7 and transistor Q3 base stage, Q3 saturation conduction, flow through Q3 emitter current is transferred to transistor Q5 base stage through the resistance R17 that Q3 collector is electrically connected, Q5 is by direct earth capacitance C9 saturation conduction in parallel between base stage with emitter, contact G current potential between Q5 collector and resistance R15 drags down generation negative edge pulse signal instantaneously, now, isolation capacitance C7 between contact A with contact B logical exchange the effect of stopping direct current under, the resistance R13 that contact B current potential is also connected electrically between contact B and power supply VCC draws high instantaneously, make to be connected electrically in resistance R15, Q3, Q3 on resistance R17 and Q5 loop, Q5 ends, contact G current potential moment between Q5 collector and resistance R15 is drawn high by resistance R15 again, the pulse width of this monopulse negative edge that the moment that contact G produces drags down is determined by the stake resistance R19 parameter of above-mentioned isolation capacitance C7 and electrical connection thereof.
10. double-direction radio Intelligent door magnetic detector according to claim 8 or claim 9, it is characterized in that: negative edge pulse signal transfers to MCU by contact output terminal INT1 or INT2, MCU is made to produce enabling look-at-me, MCU is closed the door or is opened the door after look-at-me wakes up, the low-voltage detection circuit be connected by its ADC pin carries out voltage acquisition to the voltage of battery, obtain from clock circuit and close the door or opening time, pass through the WIFI module that self serial ports RS-232 is connected again simultaneously, to close the door or open the door relevant information, battery voltage information and close the door or opening time information through serial ports RS-232, WIFI module and router are sent to cloud server and carry out stored record, whether cloud server passes through network by relevant information according to the demand of user, phone, micro-letter, QQ, mail and short message mode are pushed to user mobile phone or local alarm, after MCU information sends and terminates, when without external interrupt, by stopping the power supply to WIFI module to the control of WIFI module power-supplying circuit, enter low-power consumption power-down mode.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105068960A (en) * | 2015-08-26 | 2015-11-18 | 厦门雅迅网络股份有限公司 | Circuit for avoiding serial port exception caused by exceptional power failure of terminal |
| CN106652284A (en) * | 2016-12-07 | 2017-05-10 | 国网青海省电力公司西宁供电公司 | Remote alarm system |
| CN106935015A (en) * | 2015-12-31 | 2017-07-07 | 上海良信电器股份有限公司 | A kind of low-voltage electrical apparatus double-direction radio control system |
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| CN106935015B (en) * | 2015-12-31 | 2023-08-15 | 上海良信电器股份有限公司 | Bidirectional wireless control system for piezoelectric device |
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| CN111710115A (en) * | 2020-05-18 | 2020-09-25 | 江苏东洲物联科技有限公司 | Intelligent control method and system for door |
| CN112068466A (en) * | 2020-08-21 | 2020-12-11 | 南方电网科学研究院有限责任公司 | Anti-dismantling monitoring method for industrial control case |
| CN113053050A (en) * | 2021-03-31 | 2021-06-29 | 湖南茴香智能科技有限公司 | Single door magnetic device |
| CN114035478A (en) * | 2021-11-12 | 2022-02-11 | 中铁十二局集团第一工程有限公司 | Opening and closing monitoring sensor based on NB-IOT |
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