CN1567389A - Household anti-theft alarm device with mutual aid function - Google Patents
Household anti-theft alarm device with mutual aid function Download PDFInfo
- Publication number
- CN1567389A CN1567389A CN 03149075 CN03149075A CN1567389A CN 1567389 A CN1567389 A CN 1567389A CN 03149075 CN03149075 CN 03149075 CN 03149075 A CN03149075 A CN 03149075A CN 1567389 A CN1567389 A CN 1567389A
- Authority
- CN
- China
- Prior art keywords
- chip microcomputer
- dial
- password
- door
- pin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
This invention provides a kind of family anti-theft alarm apparatus and its operation and control method that with the mutual help function. This apparatus includes the detection and dial calling part that installed in user's family and judge and control alarm part that installed in user's neighbor family. The two parts link with each other. The detection and dial calling part consists of multiple pairs of magnetic steel - magnetism sensor that installed on door (window) and its frame, the dial and the alarm. The judge and control alarm part consists of digital control circuit board with the core of SCM, standby battery and calling alarm. One can compile the working program by assembly language. The master program and subprogram nested with each other to realize alarm by interrupt program.
Description
Technical field
The present invention relates to a kind of is the home security warning device that main element has mutual-aid function by magnet steel, Magnetic Sensor, single-chip microcomputer and dial.
Background technology
The home security warning device has distributed and non-centralized two classes of concentrating.The many employings of present existing home security warning device are concentrated distributed, promptly have a central compartment to monitor each room or family, and its sensor adopts infrared ray sensor more.The major defect of this warning device has two: first investment is bigger, has surpassed the ability to shoulder economically of most of families and unit.It two is that personal choice is poor.Immediate shipment with do not adorn, adorn which type of warning device and can not determine by one, two family.And some non-centralized burglar alarms, as United States Patent (USP) 4,335,376, though the time overcome above-mentioned deficiency in design, the action that is opened of monitoring door all the time when working, and the state of can not monitoring door whether always opening so just is easy to generate false alarm.In fact for burglar alarm, preferably open gate delay a period of time, finish identifying then rapidly, rather than in the process of reporting to the police from opening the door to, promptly in time delay, discern, because this will increase the hit it possibility of password of thief, as United States Patent (USP) 4 always, 427,975 just have this problem.
The prior art home security warning device that comprises above-mentioned patent is mostly: (1) adopts cipher or coding as control end, its circuit more complicated, and intermediate link is more, is easy to generate false triggering and contact fault.(2) mimic channels that adopt more, less employing digital circuit, and recognition time is longer, thus reduced the reliability of alarm, be easy to generate false alarm.(3) use trouble, cost is higher, and free property and damage resistance are poor.
Summary of the invention
The invention provides a kind of home security warning device and progress control method thereof with mutual-aid function, it adopts the single-chip microcomputer Digital Control, magnet steel-Magnetic Sensor monitoring, the dial setting code, its control flow is simple and clear, reports to the police with interrupt routine, makes operational applications intuitively easy, opposite house, window, balcony monitor simultaneously, and independence is strong, cost is lower.
The present invention has the home security warning device of mutual-aid function, comprises detection dial-up calling part that is installed in the user family and the judgement control warning part that is installed among the user neighbour's, and two parts are electrically connected and are integral.Detect dial-up calling part and comprise link to each other in proper order many magnet steel-Magnetic Sensor, dial, rectifier, urgent call knob, local alarm.Judge that control warning part comprises with the single-chip microcomputer being the digital control circuit plate of core and voltage comparator, gate circuit, also comprises call alerts device, reserve battery, reset button.Detect dial-up and call out many in the part magnet steel is installed in the edge of door leaf and sash movable part to magnet steel-Magnetic Sensor parallel connection, Magnetic Sensor is installed on the doorframe or window frame corresponding and adjoining with magnet steel.Dial and local alarm are installed in the limit, gate.Local alarm, call alerts device link to each other with the interface of single-chip microcomputer respectively with dial, and single-chip microcomputer reads the numeral of dial by the control high-low level.All magnet steel-Magnetic Sensors are connected the middle fracture of single-chip microcomputer by gate circuit (rejection gate and or).External power source is by rectifier or utilize reserve battery to power to this device.
The home security warning device that the present invention has mutual-aid function carries out digital control by single-chip microcomputer to hardware circuit, work out its working routine with assembly language, adopt Structured Programming, master routine is mutually nested with subroutine, utilize interrupt routine to report to the police, control flow is simple and clear, manipulates intuitively easy.
The present invention has the home security warning device of mutual-aid function and operates progress control method compared with prior art, has following significant technique effect and characteristics:
1, apparatus of the present invention adopt Digital Control, and reliability height, independence are strong.This device organically combines hardware and software, is core with the single-chip microcomputer on hardware design, adopts magnet steel, Magnetic Sensor, dial, and identifying is finished rapidly in several microseconds, has improved the reliability of warning device.It not only has intelligentized function, and can overcome and defective such as concentrate distributed alarming installation cost costliness, trouble is installed, independence is not strong, have with low cost, characteristics such as simple, free property is strong are installed.
2, power supply commonly used and reserve battery are arranged, security is good, power consumption is little.The power supply commonly used of package unit is provided by the rectifying part of user family.If the plug of power supply is pulled out, then neighbour's's reserve battery provides power supply automatically.Because main dissipative cell is a microphone device, the most time services of single-chip microcomputer are at idle power down mode in addition, so there be not the thief to enter, when promptly microphone device did not ring, the package unit power consumption was very little.
3, easy and simple to handle, good confidentiality.Usual user does not need to report to the police when being in, and at this moment dial pushes password figure, sounds all clear after single-chip microcomputer identification, and device is in forbids the interruption status of opening the door, and the operation of device enters idle power down mode.When the user needs warning, as will be away from home the time, as long as dial is pushed the position that is not password figure, open behind the door, single-chip microcomputer is waken up and finds the digital incorrect of dial, time-delay a period of time (being designated as T1, is to leave the time that the user opens the door and leaves for), single-chip microcomputer is allowed to open the door and is interrupted and enter idle condition.If door or window are opened once more, magnet steel is not aimed at the magnetic induction device, will change level state and wake single-chip microcomputer up as the magnetic induction signal in singlechip interruption source to enter interrupt routine.Having no progeny during single-chip microcomputer enters at first is wait for a period of time (being designated as T2, for the user opens the door the back group time to password), reads the numeral of dial then.If single-chip microcomputer is read correct password, then reenter idle condition.If what single-chip microcomputer was read is not password, at this moment both can allow two microphone devices send continual piping simultaneously, also can allow the microphone device of user family pipe a period of time earlier (being designated as T3), remind the user to dial password once more.If single-chip microcomputer is read correct password specifically, then stop to pipe, otherwise two microphone devices at two places pipe together.Because the time that single-chip microcomputer reads dial has only several instruction cycles, the dial numeral is that the total nearly hundreds of kind of password is selected in addition, and the person who does not know password is very little to the possibility of password.
4, the prompting of the reserve battery of replacing is arranged.By embodiment hereinafter described as can be seen, the present invention is by inserting fixing level to the negative input end of a voltage comparator.The output terminal of comparer inserts the middle fracture of single-chip microcomputer.If power supply is lower than fixing voltage, the voltage comparator output low level causes interruption.Because interrupt routine password this moment is empty, the digital control circuit of device is handled by the password mistake automatically, causes the microphone device in the user family to send piping of interruption, should change reserve battery to remind the user.
5, mutual-aid function and send agreement help signal function is arranged.The present invention can help each other user and neighbours, and there is a fixed urgent call switch with lock in user family.As long as this switch is pressed discontinuously, user neighbour's's microphone device is switched on and sends piping of interruption.The user can arrange with neighbours, and this is the help signal that user family oneself sends, rather than has the thief to enter user house.In addition, the present invention can also monitor the infant of firm LEARNING TO WALK, and the head of a family and neighbours can listen the chimes of doom of auto levelizer when it is at will gone out, and goes out to prevent the infant.
Description of drawings
Fig. 1 is the electrical block diagram of apparatus of the present invention.
Fig. 2 is the layout scheme of installation of the main components and parts of apparatus of the present invention.
Fig. 3 is that the present invention detects dial-up calling part electrical schematic diagram.
Fig. 4 is that the present invention judges control warning part electrical schematic diagram.
Fig. 5 is the process flow diagram of apparatus of the present invention operation control master routine.
Fig. 6 is the process flow diagram that apparatus of the present invention are interrupted 0 subroutine.
Embodiment
Describe content of the present invention in detail below in conjunction with the accompanying drawing illustrated embodiment, comprise layout mounting structure, electrical principle and the method for controlling operation thereof of home security warning device components and parts with mutual-aid function.
At first see also Fig. 1 and Fig. 2, apparatus of the present invention comprise two parts, and the detection dial-up that promptly is installed in the user family is called out part I and the judgement control warning part II that is installed among the user neighbour's, and two parts are electrically connected with telecommunication cable 3 and are integral.That detects that dial-up calls out that part I comprises that order links to each other is many to magnet steel 1-Magnetic Sensor 8, two dial 9 and 10, transformer 30 (seeing Fig. 3, expression among Fig. 1 and Fig. 2), rectifier 32, emergency call button 12, local alarm 13.Judge control warning part II comprises with single-chip microcomputer 88 being the digital control circuit plate 880 of core, and the main components and parts of this digital control circuit plate 880 also comprise voltage comparator 70, gate circuit 87.Judge that control warning part II also comprises call alerts device 16, reserve battery 63, reset button 15.Detect dial-up and call out many among the part I 8 parallel connections of magnet steel 1-Magnetic Sensor, magnet steel 1 is installed in the edge of door leaf and sash 5 movable parts respectively, Magnetic Sensor 8 is installed in respectively on the doorframe or window frame corresponding and adjoining with magnet steel 1, all magnet steel-Magnetic Sensors by rejection gate 87-1 and or a 87-2 be connected the middle fracture 0 (INT0) of single-chip microcomputer 88. Dial 9 and 10 and local alarm 13 be installed in the limit, gate.Local alarm 13, call alerts device 16 link to each other with the interface of single-chip microcomputer 88 respectively with 10 with dial 9.External power source is by rectifier 32 or utilize reserve battery 63 to power to this device.Detect dial-up and call out among the part I, except that magnet steel 1-Magnetic Sensor 8, all the other components and parts are assembled into box 2.Judge that control warning part II is assembled into box 4. Dial 9 and 10, emergency call button 12 are equipped with in box 2 surfaces.Power switch 14 and reset button 15 are equipped with in box 4 surfaces.
Fig. 3 is that the present invention detects the electrical schematic diagram that dial-up is called out part I, the single-phase alternating current of being introduced by power lead 11 is through transformer 30 step-downs, arrive rectifier 32 rectifications through fuse 31, electrochemical capacitor 33 and electric capacity 34 filtering connect light emitting diode 35 and local alarm 13 then.One end of light emitting diode 35 is by resistance 36 ground connection.The other end contact J1.5 of local alarm 13 connects the P1.5 pin of single-chip microcomputer 88. Dial 9 and 10 pin one end meet contact J1.7 and the J1.8 on the connector 17 respectively, and the other end meets power supply+5V by diode 39-42 and 43-46 through resistor chain 18.Magnet steel-Magnetic Sensor among Fig. 1 and Fig. 2 is expressed as switch form here, and promptly 50,51,52.One end ground connection of its Magnetic Sensor, the other end meets power supply+5V by resistance 47,48,49, meets contact J1.6 by rejection gate 87-1 simultaneously.One end ground connection of emergency call button 12, the other end meets power supply+5V through resistance 37.
Fig. 4 is the electrical schematic diagram that the present invention judges control warning part II, call out the power supply of part I through diode 60, electrochemical capacitor 61 filtering from detecting dial-up, again with reserve battery 63 through diode 91,62 switches 14 in parallel, after Voltage stabilizing module 65 voltage stabilizings, give whole device power supply then together.The P1.4 pin of single-chip microcomputer 88 and P1.5 pin are connected the base stage of triode 82 and 85 respectively with 80 by not gate 79, also meet power supply+5V through current-limiting resistance 73 and 83 respectively simultaneously.The collector of triode 82 connects call alerts device 16, grounded emitter; The collector of triode 85 connects local alarm 13, grounded emitter through contact J1.5.The resistance 67 that resistance value equates and 68 is formed a voltage divider, the negative pole of one terminating diode 91 of resistance 67, one end ground connection of resistance 68, the positive input terminal of resistance 67 and 68 public termination voltage comparator 70, the negative input end of voltage comparator 70 is by stabilivolt 71 ground connection, and output terminal connects the middle fracture 0 (INT0) of single-chip microcomputer 88.One termination power of reset button 15+5V, by electric capacity 75 and resistance 76 ground connection, the other end is that the RESET pin links to each other through the resistance 74 and the resetting pin of single-chip microcomputer 88 simultaneously.The X1 of single-chip microcomputer 88 and X2 pin are connected respectively to the two ends of crystal 72, and then respectively through electric capacity 77 and 78 ground connection.Or the output terminal of door 87-2 connects the INT0 pin of single-chip microcomputer 88.Contact J1.7 in the connector 17 is connected by not gate 87-3 with J1.8.
Fig. 5 is the progress control method that the present invention has the home security warning device of mutual-aid function, and its operation master routine is as follows:
(1) beginning 100,
(2) initialization 101,
(3) judge that whether correct password 103,
(4) password is correct, and zone bit 105 then is set: password mark position 1, the zone bit zero clearing of opening the door, idle marker position 1,
(5) device enters power down mode 107,
(6) password bad, password zone bit zero clearing 104,
(7) judge whether the zone bit that opens the door is 1106,
(8) zone bit that opens the door is 1, then enter to interrupt 0 subroutine 200,
(9) zone bit that opens the door is not 1, then delayed time 100 seconds 108,
(10) fracture 0 interrupts 112 in the permission,
(11) the idle marker position 1114,
(12) device enters idle condition 116.
Fig. 6 is interruption 0 subroutine of the present invention, and its idiographic flow is as follows:
(1) enter interruption 0 subroutine 200,
(2) disabled interrupt 0, delayed time 20 seconds 201,
(3) judge that whether correct password 203,
(4) password is correct, recovers to interrupt 0, forbids sending sound 205,
(5) return master routine 207,
(6) password bad, then local alarm send sound and delayed time 20 seconds, P1.5 zero clearing 202,
Whether (7) read password correct 204,
(8) it is correct to read password, then returns master routine 208,
(9) read password bad, then close all interruptions, the P1.4 zero clearing, the call alerts device sends sound 206.
With single-chip microcomputer 88 is that the control procedure of the burglar alarm of the present invention of core is such: when door or window are opened, magnet steel-Magnetic Sensor 50～52 among Fig. 3 has at least one to disconnect, the output terminal of rejection gate 87-1 is a low level, and this low level has two effects: promptly wake single-chip microcomputer 88 up and single-chip microcomputer is entered and interrupt 0 subroutine 200.
1, wakes single-chip microcomputer 88 up.Single-chip microcomputer 88 is after resetting, be that master routine brings into operation 100, at first finish initialization 101, the password of then judging dial 9 and 10 whether correct 103, if it is correct, then password mark position 1 and the zone bit zero clearing and to put idle marker be 1,105 of opening the door, single-chip microcomputer enters idle power down mode 107; If password bad, single-chip microcomputer 88 clear passwords are masked as 0 104, and judge whether the sign that opens the door is 1,106.If then enter and interrupt 0 subroutine 200; If not, the flag set of opening the door is delayed time after 100 seconds 108, and fracture 0 interrupts 112 in the permission, the position, idle marker position 114 of single-chip microcomputer 88 then, single-chip microcomputer 88 enters idle condition 116.
If 2 zone bits that open the door are 1, then the low level of rejection gate 87-1 output causes that single-chip microcomputer 88 enters and interrupts 0 subroutine 200.
Phase clamshell doors (being generally a second level), the wakeup time of single-chip microcomputer is lacked (being generally a few tens of milliseconds) very much, so interrupt 0 subroutine and can not clash in time from resetting to enter, do not deduct the poor of reset time because the said program execution time in front can not surpass the time of opening the door.
After single-chip microcomputer entered into and interrupts 0 subroutine, at first disabled interrupt 0, delay time 20 seconds 201, judged that whether correct password 203, if correct, then the recovery interruption 0, forbids that local alarm 13 and call alerts device 16 send sound 205, return master routine 207; If password bad, then the clear position of single-chip microcomputer P1.5 pin, triode 85 conductings, local alarm 13 sends sound and delayed time 20 seconds 202.If the burglar enters, design has the effect of warning like this; If the user enters, can remind user cipher not right, dial password again.Behind the clear position of single-chip microcomputer P1.5 pin, read password whether correct 204 once more.If incorrect, warning device cuts out all interruptions, the zero clearing of single-chip microcomputer P1.4 pin, and triode 82 conductings, call alerts device 16 sends sound 206.Want shutdown call alarm 16, unique method is that the knob 15 that resets is closed or pressed to the power switch 14 of the control of the judgement among user neighbour's warning part.
Certainly, if interrupt 0 signal receiving, behind the judgement password bad, it is also passable to be designed to allow local alarm 13 and call alerts device 16 pipe simultaneously, and this is the change of software, and hardware is without any variation.
Claims (5)
1, a kind of home security warning device with mutual-aid function is characterized in that comprising two parts, promptly is installed in detection dial-up in the user family and calls out part (I) and be installed in judgement control among the user neighbour's part (II) of reporting to the police, and two parts electrical connection is integral; Detect dial-up calling part (I) and comprise link to each other in proper order many magnet steel (1)-Magnetic Sensor (8), dial (9,10), rectifier (32), urgent call knob (12), local alarm (13); Judge that the control part (II) of reporting to the police comprises with single-chip microcomputer (88) being the digital control circuit plate (880) of core and voltage comparator (70), gate circuit (87), also comprises call alerts device (16), reserve battery (63), reset button (15); Detect dial-up and call out many in the part (I) magnet steel (1)-Magnetic Sensor (8) parallel connection, magnet steel (1) is installed in the edge of door leaf and sash (5) movable part respectively, Magnetic Sensor (8) is installed in respectively on the doorframe or window frame corresponding and adjoining with magnet steel (1), and dial (9,10) and local alarm (13) are installed in the limit, gate; Local alarm (13), call alerts device (16) link to each other with the interface of single-chip microcomputer (88) respectively with dial (9,10), all magnet steel (1)-Magnetic Sensor (8) is by the middle fracture of gate circuit (87) connection single-chip microcomputer, and external power source is by rectifier (32) or utilize reserve battery (63) to power to this device.
2, according to the home security warning device with mutual-aid function of claim 1, it is characterized in that detecting dial-up calls out in the part, the single-phase alternating current of being introduced by power lead (11) is through transformer (30) step-down, arrive rectifier (32) rectification through protective tube (31), electrochemical capacitor (33), electric capacity (34) filtering, connect light emitting diode (35) and local alarm (13) then, the other end contact J1.5 of local alarm (13) connects the P1.5 pin of single-chip microcomputer (88); Pin one end of dial (9) and (10) is contact J1.7 and J1.8 respectively, and the other end respectively by 4 diodes (39-42) and (43-46) meets power supply+5V; One end ground connection of the Magnetic Sensor of magnet steel-Magnetic Sensor (50,51,52), the other end is by rejection gate (87-1) contact J1.6.
3, according to the home security warning device with mutual-aid function of claim 1, it is characterized in that being installed in the judgement control warning part among the user neighbour's, call out the power supply of part through diode (60), electrochemical capacitor (61) filtering from detecting dial-up, again with reserve battery (63) through diode (91,62) switches in parallel (14), after Voltage stabilizing module (65) voltage stabilizing, give whole device power supply together; The P1.4 pin of single-chip microcomputer (88) and P1.5 pin are connected the base stage of triode (82) and (85) respectively with (80) by not gate (79), also meet power supply+5V through current-limiting resistance (73) and (83) respectively simultaneously, the collector of triode (82) connects call alerts device (16), grounded emitter, the collector of triode (85) connects local alarm (13), grounded emitter through contact J1.5; A voltage divider is formed in the resistance (67) that resistance value equates and (68), the negative pole of one terminating diode (91) of resistance (67), one end ground connection of resistance (68), the positive input terminal of the public termination voltage comparator (70) of resistance (67) and (68), the negative input end of voltage comparator (70) is by stabilivolt (71) ground connection, the output terminal of voltage comparator (70) connects the middle fracture 0 of single-chip microcomputer (88), one termination power+the 5V of reset button (15), the other end links to each other with the resetting pin of single-chip microcomputer (88), or the output terminal of door (87-2) connects the INT0 pin of single-chip microcomputer (88), and the contact J1.7 in the connector (17) is connected by not gate (87-3) with J1.8.
4, a kind of control method with home security warning device of mutual-aid function, it is characterized in that with single-chip microcomputer (88) be the detection control circuit of core by the operation of following master routine:
(1) beginning (100),
(2) initialization (101),
(3) judge password whether correctly (103),
(4) password is correct, and zone bit (105) then is set, password mark position 1, the zone bit zero clearing of opening the door, idle marker position 1,
(5) device enters power down mode (107),
(6) password bad, password zone bit zero clearing (104),
(7) judge whether the zone bit that opens the door is 1 (106),
(8) zone bit that opens the door is 1, then enter to interrupt 0 subroutine (200),
(9) zone bit that opens the door is not 1, then delay time 100 seconds (108),
(10) fracture 1 interrupts (112) in the permission,
(11) the idle marker position 1 (114),
(12) device enters idle condition (116).
5, according to the control method of the home security warning device with mutual-aid function of claim 4, it is characterized in that its flow process of interrupting 0 subroutine is as follows:
(1) enter interruption 0 subroutine (200),
(2) disabled interrupt 0, delay time 20 seconds (201),
(3) judge password whether correctly (203),
(4) password is correct, recovers to interrupt 0, forbids sending sound (205),
(5) return master routine (207),
(6) password bad, then local alarm send sound and delayed time 20 seconds, single-chip microcomputer P1.5 pin zero clearing (202),
(7) read password whether correctly (204),
(8) it is correct to read password, then returns master routine (208),
(9) read password bad, then close all interruptions, the zero clearing of single-chip microcomputer P1.4 pin, the call alerts device sends sound (206).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03149075 CN1567389A (en) | 2003-06-25 | 2003-06-25 | Household anti-theft alarm device with mutual aid function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03149075 CN1567389A (en) | 2003-06-25 | 2003-06-25 | Household anti-theft alarm device with mutual aid function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1567389A true CN1567389A (en) | 2005-01-19 |
Family
ID=34472466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03149075 Pending CN1567389A (en) | 2003-06-25 | 2003-06-25 | Household anti-theft alarm device with mutual aid function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1567389A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101821946B (en) * | 2007-09-27 | 2016-03-16 | 西门子瑞士有限公司 | For convertor device being connected to the interface of two-wire line |
| CN107610433A (en) * | 2017-09-13 | 2018-01-19 | 三石量子（苏州）信息科技有限公司 | A kind of safe city emergency calls system |
-
2003
- 2003-06-25 CN CN 03149075 patent/CN1567389A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101821946B (en) * | 2007-09-27 | 2016-03-16 | 西门子瑞士有限公司 | For convertor device being connected to the interface of two-wire line |
| CN107610433A (en) * | 2017-09-13 | 2018-01-19 | 三石量子（苏州）信息科技有限公司 | A kind of safe city emergency calls system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100806255B1 (en) | Integrated management system for a small water works | |
| CN102140804A (en) | Outdoor well cover with intelligent anti-theft and anti-damage alarm function as well as alarm management system | |
| CN105120227A (en) | Monitoring system integrated management module and management method | |
| CN1567389A (en) | Household anti-theft alarm device with mutual aid function | |
| CN208271338U (en) | A kind of window anti-theft system based on embedded platform | |
| CN1652428A (en) | Multifunctional controller for rolling gate | |
| CN201528222U (en) | Power supply protection device of architectural space wireless antitheft fire-fighting communication host | |
| CN106781227A (en) | A kind of high-end residential cell synthetic security system | |
| CN207833665U (en) | A kind of intelligence home for destitute | |
| CN206639345U (en) | A kind of intelligent doorbell | |
| CN204695475U (en) | A kind of outdoor electrical control cabinet anti-theft device | |
| CN201341170Y (en) | Household security protection device for dealing the power failure or telephone circuit abnormal situation | |
| CN210072808U (en) | Storage cabinet unlocked by password and card swiping | |
| CN210574183U (en) | Anti-dismounting device of smoke alarm base | |
| CN2927442Y (en) | Locker against electric shock for household electrical appliance | |
| CN100423033C (en) | Electrical pole dragline monitoring and alarming system | |
| CN106781226A (en) | A kind of intelligent doorbell | |
| CN200982988Y (en) | Monitoring alarming system for electric pole pull rope | |
| CN2492901Y (en) | Multipurpose intelligent anti-theft alarm | |
| CN216013997U (en) | Door state detection mechanism for multi-bin public service intelligent device | |
| CN204442316U (en) | A kind of electronic switch | |
| CN215768937U (en) | Reverse connection prevention indication alarm circuit of direct current power supply system | |
| CN220651380U (en) | Alarm device for outdoor electric power facilities | |
| CN218038225U (en) | Independent smoke-sensing fire detection alarm | |
| CN216485292U (en) | Fault detector for entrance guard card reader |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |