CN201796446U

CN201796446U - Stay wire wireless sensor

Info

Publication number: CN201796446U
Application number: CN2010202947588U
Authority: CN
Inventors: 陈存龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-08-17
Filing date: 2010-08-17
Publication date: 2011-04-13
Anticipated expiration: 2020-08-17

Abstract

The utility model discloses a stay wire wireless sensor, which comprises a stay wire switch, a stay wire and a switch signal end connected with the stay wire, wherein the switch signal end is connected with a power supply and wireless transmitting circuit of the wireless sensor and a low-voltage detection and alarm sound generation circuit; the switch signal end is connected with the power supply and the wireless transmitting circuit of the wireless sensor and is used for transmitting a switch signal to the wireless transmitting circuit, and the wireless signal is transmitted by the wireless transmitting circuit; and the low-voltage detection and alarm sound generation circuit is used for receiving the power supply of the wireless sensor, controlling the wireless transmitting circuit to transmit the signal, detecting the voltage and triggering and transmitting alarm sound according to the signal. The wireless sensor is convenient for opening or closing an window in an alarm triggering state, and the installation is also convenient; a plurality of small pulleys are mounted on two sides of windows to be armed and wired by fine lines in a zigzag shape; and the wireless sensor can alarm as long as people illegally intrude to break or push lines without being influenced by closing or pushing the window, so that the wireless sensor is quite worthy of being popularized.

Description

A kind of backguy wireless sensor

Technical field

The utility model relates to a kind of alarm terminal device, particularly a kind of backguy wireless sensor by backguy induction and transmission of wireless signals.

Background technology

The bar magnet of motion is launched warning message after triggering the work of window magnetic main body tongue tube with high frequency transmission circuit.Simultaneously relay indicating light bright once point out user's window magnetic working properly, need change battery as two all bright prompting of lamp users, there are some inconvenient factors in the user: because the window abampere is contained on the glider glass window of window, the user when the summer of sweltering heat, window was antitheft, can not push open window ventilative use very inconvenient.Sometimes, windowing normally ventilative also be considered to have safety problem and report to the police, and be used for or can only be to close the warning induction installation this moment, otherwise just can only be no matter it sends alarm sound.When external noise is bigger by day, also no problem, exactly evening, when being easy to generate safety problem, carry out safe preservation with regard to needing warning device, therefore, how can coordinate this problem becomes technological difficulties.

The utility model content

The utility model purpose: technical problem to be solved in the utility model is at the deficiencies in the prior art, and a kind of backguy wireless sensor is provided.

In order to solve the problems of the technologies described above, the utility model discloses a kind of backguy wireless sensor, comprise pullswitch, backguy and the switching signal end that is connected with backguy, described switching signal end connects wireless sensor power supply and radio transmitter and low pressure and detects and alarm sound generation circuit;

Described switching signal end connects wireless sensor power supply and radio transmitter, be used for switching signal is transferred to radio transmitter, and by radio transmitter with wireless signal transmission;

Described low pressure detects and alarm sound generation circuit, is used to receive described wireless sensor power supply, reaches the described radio transmitter of control and transmits, and detects voltage and sends alarm sound according to signal triggering.

In the utility model, preferably, described wireless sensor power supply and radio transmitter comprise socket, first triode, second field effect transistor, the 3rd field effect transistor, the 4th triode, the 5th triode, first chip, first inductance, second inductance, the 3rd inductance, first electric capacity, second electric capacity, second diode and crystal oscillator;

Described socket one end is connected with described switching signal end, and the other end connects the grid of described second field effect transistor by described first electric capacity; The drain electrode of second field effect transistor connects the base stage of the 5th triode, and its emitter connects power supply, and its collector connects the drain electrode of an end, first inductance and the 3rd field effect transistor of second electric capacity respectively; The other end ground connection of one end of described second electric capacity; The grid of described the 3rd field effect transistor connects the high frequency square wave output terminal (EXT end) of first chip, and the drain electrode of the 3rd field effect transistor also is connected with second diode; The voltage-regulation end of first chip (FB end) is connected the collector of first triode with the 3rd inductance by second inductance, the base stage that connects first triode simultaneously by crystal oscillator, the emitter of first triode connects the collector of the 4th triode, and the base stage of the 4th triode connects RF emission of radio frequency signals end.

In the utility model, preferably, described low pressure detects and alarm sound generation circuit comprises second chip, the 6th triode, the 7th triode, the 8th triode, the 9th triode and hummer;

The pin 2 of described second chip is a RF radiofrequency signal control end, is used to control the signal of RF emission of radio frequency signals end;

The pin 1 of described second chip connects the emitter and the base stage of the 8th triode, connects the collector of the 7th triode simultaneously; The base stage of the 7th triode connects the collector of the 6th triode, and the base stage of the 6th triode connects power supply; The collector of described the 8th triode connects the pin 3 of second chip; The pin 7 of second chip connects the base stage of the 9th triode, and the collector of the 9th triode connects described hummer.

Beneficial effect: general window magnetic warning device can not arbitrarily open a window in alarm condition, so very inconvenient user user; In the summer of sweltering heat, or want ventilation all can not window long-term like this go down can influence user's health.And backguy wireless sensor described in the utility model has solved these conflicts effectively, will window or will to close window all very convenient warning triggering state user.The utility model is also very convenient when mounted, on the window both sides that will deploy troops on garrison duty several small sheaves is installed, and the word of pressing with fine rule connects up; The people will trespass broken string or push away line and can report to the police, and closes or pushes open with window without any relation, therefore has good market outlook, is worthy to be popularized very much.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is done further to specify, above-mentioned and/or otherwise advantage of the present utility model will become apparent.

Fig. 1 is the external structure synoptic diagram of a kind of backguy wireless sensor described in the utility model.

Fig. 2 is power supply of backguy wireless sensor and a radio transmitter schematic diagram in the utility model.

Fig. 3 detects and alarm sound generation circuit theory diagrams for the utility model mesolow.

Embodiment:

The utility model discloses a kind of backguy wireless sensor, comprise pullswitch, backguy and the switching signal end that is connected with backguy, described switching signal end connects wireless sensor power supply and radio transmitter and low pressure and detects and alarm sound generation circuit; Described switching signal end connects wireless sensor power supply and radio transmitter, be used for switching signal is transferred to radio transmitter, and by radio transmitter with wireless signal transmission; Described low pressure detects and alarm sound generation circuit, is used to receive described wireless sensor power supply, reaches the described radio transmitter of control and transmits, and detects voltage and sends alarm sound according to signal triggering.

Power supply of wireless sensor described in the utility model and radio transmitter comprise socket, first triode, second field effect transistor, the 3rd field effect transistor, the 4th triode, the 5th triode, first chip, first inductance, second inductance, the 3rd inductance, first electric capacity, second electric capacity, second diode and crystal oscillator; Described socket one end is connected with described switching signal end, and the other end connects the grid of described second field effect transistor by described first electric capacity; The drain electrode of second field effect transistor connects the base stage of the 5th triode, and its emitter connects power supply, and its collector connects the drain electrode of an end, first inductance and the 3rd field effect transistor of second electric capacity respectively; The other end ground connection of one end of described second electric capacity; The grid of described the 3rd field effect transistor connects the high frequency square wave output terminal of first chip, and the drain electrode of the 3rd field effect transistor also is connected with second diode; The voltage-regulation end of first chip is connected the collector of first triode by second inductance and the 3rd inductance, the base stage that connects first triode simultaneously by crystal oscillator, the emitter of first triode connects the collector of the 4th triode, and the base stage of the 4th triode connects RF emission of radio frequency signals end.Described low pressure detects and alarm sound generation circuit comprises second chip, the 6th triode, the 7th triode, the 8th triode, the 9th triode and hummer; The pin 2 of described second chip is a RF radiofrequency signal control end, is used to control the signal of RF emission of radio frequency signals end; The pin 1 of described second chip connects the emitter and the base stage of the 8th triode, connects the collector of the 7th triode simultaneously; The base stage of the 7th triode connects the collector of the 6th triode, and the base stage of the 6th triode connects power supply; The collector of described the 8th triode connects the pin 3 of second chip; The pin 7 of second chip connects the base stage of the 9th triode, and the collector of the 9th triode connects described hummer.

As shown in Figure 1, principle of work of the present utility model is: pullswitch is fixed on the window limit, and the plug J3 of pullswitch is inserted on the socket J4 (shown in Fig. 2).As shown in Figure 2, backguy wireless sensor on being installed in window detect the thread breakage on the window or when pullling forward socket J4 at this moment be equivalent to open circuit over the ground, first capacitor C 1 is by 3 chargings of the 3rd resistance R, the second field effect transistor Q2 conducting, bias voltage is provided for the 5th triode Q5 by first resistance R 1, the 5th triode Q5 work is by first inductance L 1, the second diode D2 gives the first chip U1 chip power supply that promptly boosts, the EXT end output high frequency square wave of chip U1 of boosting triggers the 3rd field effect transistor Q3 work, the inductance L 1 and the second diode D2, the 7th capacitor C 7 is formed booster circuit and is powered to radiating circuit by the 22 resistance R 22.As shown in Figure 3, simultaneously+booster voltage of V gives the mu balanced circuit of the second chip U2 (single-chip microcomputer DIP8) power supply, the 8th capacitor C 8, voltage stabilizing diode Z1 composition single-chip microcomputer U2 by the 17 resistance R 17, and second resistance R 2, display lamp LED1 are relay indicating light; The 20 resistance R 20, the 9th triode Q9, hummer K1 form the work prompting sound circuit; The 12 resistance R 12, display lamp LED2 form the low electric indicator light circuit of battery.Second chip is that the high frequency transmission circuit that the 2 pin output digital signal of single-chip microcomputer U2 is made up of the first triode Q1, electric capacity Y1, the 8th resistance R 8, the 5th capacitor C 5, the 6th capacitor C 6, second inductance L 2 by the 7th resistance R 7, the 4th triode Q4 control is launched digital signal.Another private host is received this information, and this information uploading 110 platforms or user mobile phone, informing has illegal invasion in the user family by main frame.

As shown in Figure 3, the 9th resistance R 9 wherein, the tenth resistance R 10, the 6th triode Q6, the 11 resistance R 11, the 13 resistance R 13, the 7th triode Q7, the 6th resistance R 6, the 14 resistance R 14, the 8th triode Q8, the 15 resistance R 15, the 16 resistance R 16 is formed the battery low-voltage testing circuit, the 6th triode Q6 does not work when cell voltage is lower than the designing requirement value, voltage+EC is by the 11 resistance R 11, the 13 resistance R 13 provides bias voltage for the base stage of the 7th triode Q7, the 7th triode Q7 work, be transferred to the base stage of the 3rd triode Q8 after the 6th resistance R 6 and the 14 resistance R 14 dividing potential drops, the 8th triode Q8 work, this voltage is by the 15 resistance R 15, the 16 resistance R 16 dividing potential drops are detected by 3 pin of single-chip microcomputer U2, the noble potential single-chip microcomputer is judged the low electricity of battery in this way, and at this moment pilot lamp display lamp LED2 lights the reminding user to replace battery; When cell voltage is higher than design load, the base stage that the 9th resistance R 9, the tenth resistance R 10 dividing potential drops are input to six triode Q6 makes the conducting of the 6th triode Q6, voltage+the EC of the 11 resistance R 11 is by the 6th triode Q6 conducting and short circuit, the 7th triode Q7 does not work, the 8th triode Q8 does not work yet, the 15 resistance R the 15, the 16 resistance R 16 does not have dividing potential drop, 3 pin of single-chip microcomputer U2 do not have voltage, and single-chip microcomputer detects thinks that cell voltage is normal; Display lamp LED2 pilot lamp does not work.The 9th triode Q9, the 20 resistance R 20, hummer K1 are sound prompt tone, and the 7 pin output audio signals that trigger a single-chip microcomputer U2 whenever pullswitch send the sound by hummer K1 again by the 9th triode Q9 amplification.

Embodiment:

More particularly, as shown in Figure 1, the utility model discloses a kind of wireless backguy wireless sensor power supply, emission principle figure.As shown in Figure 2, power circuit mainly is made up of the 5th triode Q5, the second triode Q2, the 3rd triode Q3, the first chip U1, the second diode D2, first inductance L 1, the 7th capacitor C 7 etc., and radiating circuit mainly is made up of the 4th triode Q4, the first triode Q1, second inductance L 2, crystal oscillator Y1 etc.As shown in Figure 1, be made up of lead, plug and switch enclosure for pullswitch, plug is inserted on the socket J4.Spring and contact are arranged in the switch enclosure, and backguy is contact metal film when the centre position, and do not trigger wireless device this moment, fixed on the window limit by line.As this moment backguy fracture or tractive forward, sheet metal is left in this device contact, as shown in Figure 2, first capacitor C, 1 charging this moment, the second triode Q2, the 5th triode Q5 works provides power supply to the first chip U1, single-chip microcomputer U2, the 2 pin output control signal of single-chip microcomputer U2 is triggered receiving trap and is reported to the police by the first triode Q1, the 4th triode Q4 high-frequency emission.

As shown in Figure 2, backguy wireless sensor described in the utility model also comprises the battery low-voltage testing circuit, and described battery low-voltage testing circuit comprises that the 6th triode Q6, the 7th triode Q7, the 8th triode Q8 and the 9th triode Q9, hummer K1 form; Base stage series and parallel the 9th resistance R 9 of described the 6th triode Q6 and the tenth resistance R 10, the nine resistance R 9 are connected the tenth resistance R 10 ground connection with the 3V power supply; The collector of the 6th triode Q6 the 13 resistance R 13 of connecting is connected with the base stage of the 7th triode Q7, and the base stage of the 6th triode Q6 is connected with the 3V power supply by the 9th resistance R 9; The collector of the 7th triode Q7 the 6th resistance R 6 back of connecting is connected with the base stage of the 8th triode Q8, the base stage of described the 7th triode Q7 and the 11 resistance R 11 and+the EC power supply is connected, draw series connection the 14 resistance R 14 backs between the base stage of the 6th resistance R 6 and the 8th triode Q8 and be connected with+V power supply.Draw between the collector series connection of the 8th triode Q8 the 15 resistance R the 15, the 16 resistance R 16, the 15 resistance R 15 and the 16 resistance R 16 to be communicated with and be high/low pressure check point with 3 pin of single-chip microcomputer U2.

The 6th triode Q6 conducting when cell voltage is higher than certain value, the 7th triode Q7 ends, and the 8th triode Q8 ends, and 3 pin of single-chip microcomputer U2 are low level.Single-chip microcomputer U2 goes up electro-detection 3 pin states at every turn, as the 7th pin output of single-chip microcomputer U2 when the low level once (one) 2700Hz per second to continue pulsetone be that resistance R 20, the 9th triode Q9 amplify and send the sound by hummer K1 through second.When electro-detection was high level on 3 pin of single-chip microcomputer U2,7 pin of single-chip microcomputer U2 output 2700Hz0.5 continued audio frequency second, sent out 2700Hz0.5 at interval after 0.5 second again and continued pulsetone 3 times (3) second, as export many sounds explanations and need to change battery.

As shown in Figure 3, the utility model backguy wireless sensor low-voltage testing circuit and sound circuit comprise circuit such as containing the 6th triode Q6, the 7th triode Q7, the 8th triode Q8,8 pin single-chip microcomputer U2, the 9th triode Q9 and hummer K1.

Line on pullswitch K2 is with airtight window in a zigzag, as thread breakage or be subjected to drawing that the contact breaks away from the metal slide plate and is in open-circuit condition in the pullswitch, power supply+EC makes the second triode Q2, the 5th triode Q5 conducting for 1 charging of first capacitor C by first resistance R 1, voltage is added on the VDD of the first chip U1, the EXT end output high-frequency impulse of the first chip U1 is controlled the 3rd triode Q3 work, operating voltage emission backguy trigger pip is provided for after boosting by first inductance L 1 the first triode Q1, the 4th triode Q4 of single-chip microcomputer U2 and high frequency transmission circuit.This end-of-job when 1 charging of first capacitor C finishes, the second triode Q2, the 5th triode Q5 quit work.

When 1 pin of single-chip microcomputer U2 has the voltage input, detect the height of its 3 pin voltage, if detect when low information Control the 4th triode Q4, the first triode Q1 that 2 pin output pullswitch by single-chip microcomputer U2 triggers this signal is gone out by high-frequency emission, 7 pin of single-chip microcomputer U2 output simultaneously one " enlightening---" sound is amplified by the 9th triode Q9 and sends the sound by hummer K1 again.When if 3 pin of single-chip microcomputer U2 are high level, its 2 pin output pullswitch triggers and hangs down that electric signal is controlled the 4th triode Q4 simultaneously, the first triode Q1 goes out this signal by high-frequency emission, and continuous " enlightening---Di " sound of 7 pin of single-chip microcomputer U2 output is simultaneously amplified by the 9th triode Q9 and sends the sound by hummer K1 again.For example, when cell voltage is lower than 2.0V, the 6th triode Q6 did not work when the tenth resistance R 10 both end voltage were lower than 0.7V, the 7th triode Q7, the 8th triode Q8 work, when pullswitch triggers, when the 3 pin low pressure test sides of single-chip microcomputer U2 were noble potential, single-chip microcomputer U2 thought battery low pressure, and continuous " enlightening---Di " the voice suggestion sound of 7 pin output comes the reminding user to replace battery with this.As the 11 resistance R 11 both end voltage greater than 0.7V, the 6th triode Q6 conducting, the 7th triode Q7, the 8th triode Q8 close, the 17 resistance R the 17, the 18 resistance R 18 dividing potential drop place voltages are low-voltage, at this moment 3 pin of single-chip microcomputer U2 detect and are electronegative potential, think cell voltage greater than 2V, 7 pin of single-chip microcomputer U2 output one " enlightening---" prompting is working properly.

The utility model provides a kind of thinking and method of backguy wireless sensor; the method and the approach of this technical scheme of specific implementation are a lot; the above only is a preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.The all available prior art of each ingredient not clear and definite in the present embodiment is realized.

Claims

1. a backguy wireless sensor comprises pullswitch, backguy and the switching signal end that is connected with backguy, it is characterized in that, described switching signal end connects wireless sensor power supply and radio transmitter and low pressure and detects and alarm sound generation circuit;

2. a kind of backguy wireless sensor according to claim 1, it is characterized in that, described wireless sensor power supply and radio transmitter comprise socket, first triode, second field effect transistor, the 3rd field effect transistor, the 4th triode, the 5th triode, first chip, first inductance, second inductance, the 3rd inductance, first electric capacity, second electric capacity, second diode and crystal oscillator;

Described socket one end is connected with described switching signal end, and the other end connects the grid of described second field effect transistor by described first electric capacity; The drain electrode of second field effect transistor connects the base stage of the 5th triode, and its emitter connects power supply, and its collector connects the drain electrode of an end, first inductance and the 3rd field effect transistor of second electric capacity respectively; The other end ground connection of one end of described second electric capacity; The grid of described the 3rd field effect transistor connects the high frequency square wave output terminal of first chip, and the drain electrode of the 3rd field effect transistor also is connected with second diode; The voltage-regulation end of first chip is connected the collector of first triode by second inductance and the 3rd inductance, the base stage that connects first triode simultaneously by crystal oscillator, the emitter of first triode connects the collector of the 4th triode, and the base stage of the 4th triode connects RF emission of radio frequency signals end.

3. a kind of backguy wireless sensor according to claim 1 is characterized in that, described low pressure detects and alarm sound generation circuit comprises second chip, the 6th triode, the 7th triode, the 8th triode, the 9th triode and hummer;