CN2200257Y - Radio alarm device for BP set - Google Patents

Abstract

The wireless alarm device of BP unit belongs to the wireless communication alarm device, the device is made up of wireless alarm transmitting part and wireless receiving part, characterized by that: the wireless receiving part adopts BP wireless pager, and the wireless alarm transmitting part adopts frequency modulation transmitting circuit and alarm triggering circuit whose transmitting frequency coding format is compatible with BP wireless pager. The function of BP radio pager is expanded, and when the luggage of motor vehicle, family and business trip personnel is stolen, the owner can immediately know and take corresponding measures, so that the anti-theft alarm function is well played.

Description

Wireless alarm device for BP telephone set

Beeper radio alarming device belongs to the wireless telecommunications warning device.

Along with the development of commodity economy, modern communication apparatus is more and more paid attention to by people.Phone, BP radio pager are more and more popularized and now because of its technology maturation, reliable in quality is subjected to the masses' welcome with moderate cost, society's owning amount is very big, but only can make the radio pager of simple function, can not have warning function simultaneously, retrieve through Chinese patent database, the wireless anti-theft alarming device is varied at present, as motor vehicles wireless remote-controlled alarm device, burglar-proof alarm door lock, bicycle, motorcycle alarm lock or the like, and most the employing transmit and receive circuit and form, though can play the burglar alarm effect, owner does not know feelings whether occur stealing.

The purpose of this utility model, just be to overcome the deficiencies in the prior art, a kind of beeper radio alarming device is provided, both expanded the function of BP radio pager, filled up a blank of burglar alarm again, when occur stealing feelings, when stealing behavior such as accounting office or automobile, motorcycle, family, suitcase as the robber, owner can know immediately, and take appropriate measures.

The purpose of this utility model realizes in the following way: this radio alarming device, partly form by radio alarming radiating portion and wireless receiving, of the present utility model being characterised in that: wireless receiving partly adopts the beeper radio pager, the radio alarming radiating portion adopt tranmitting frequency and frequency coding form all with the modulating emission circuit and the alarm trigger circuit of BP radio pager compatibility.

The purpose of this utility model can also realize in the following way:

Described modulating emission circuit is radio transmitter (4) composition that adopts single-chip microcomputer coding circuit (3) and be attached thereto, described triggering warning circuit is circuits for triggering 2 compositions that adopt transducer 1 and be attached thereto, and the output of circuits for triggering 2 links to each other with single-chip microcomputer coding circuit 3.

The radio transmitter 4 of described modulating emission circuit is to adopt by triode Q ₁, crystal oscillator JT ₁, capacitor C ₁Form, and be attached thereto by triode Q ₂, resistance R ₅, R ₆The modulating stage of forming, triode Q ₃, Q ₄The doubler and the triode Q that form ₆, Q ₇The emission power amplifier level of forming is formed, and modulating stage mainly modulates and send into doubler by the code signal from coding circuit to master-oscillator.

Set up the sound circuit that links to each other with power supply, can realize the onsite alarming function.

Described transducer 1 is contact transducer or level formula transducer.

The operation principle of beeper radio alarming device of the present utility model is:

Alarm sensor 1 is used to survey the actuation of an alarm of protected target; it both can be level formula transducer; as shock sensor; can be the contact transducer also, as infrared sensor, invasion such as microwave remote sensor or ultrasonic wave formula alarm sensor; alarm trigger circuit 2 is used for receiving and identifying the warning message of processing from alarm sensor 1; after confirming, start single-chip microcomputer coding circuit 3, radio transmitter 4 work such as grade.Single-chip microcomputer coding circuit 3 is responsible for that warning message is carried out coded modulation and is handled, and makes coded format compatible mutually with the beeper coded format.Radio transmitter 4 will send with the radio wave with the mutually compatible frequency of beeper after will modulating through the code signal that single-chip microcomputer is handled.After beeper 5 was received warning message, both the warning reminding user had alert, also can point out information such as warning kind and alert locations code simultaneously.Beeper radio alarming device of the present utility model can be an alarm transmission to a beeper, also can be of the multiple combinations of several alarm transmission machines to several beepers.

Beeper radio alarming device of the present utility model makes full use of existing technology maturation and widely used beeper as the radio alarming receiver, and under the prerequisite that does not influence the normal paging function of beeper, expanded function makes its one-object-many-purposes.Also filled up simultaneously a blank of alarm, according to different needs, can make the stronger wireless alarm system on a large scale of function, be installed on the significant points of factories and miness, bank, institutional settings, utilize the contact infrared sensor as infrared, microwave etc., in time notify the patrol personnel to finish alarming anti-theft keypoint part.

The utility model is made small and exquisite portable micro alarm, is used for family's keypoint part protection and motor vehicles, moving target or employee on business trip's luggage monitoring, and the ward nursing that also can be used for hospital is called out.

Fig. 1 is the utility model beeper radio alarming device circuit theory diagram.

Fig. 2 is the utility model beeper radio alarming device circuit schematic diagram.

Fig. 3 is the utility model beeper radio alarming device language alarm circuit theory diagrams.

Fig. 4 is the utility model beeper radio alarming device level formula transducer and treatment circuit.

Among the figure: the 1st, transducer, 2 circuits for triggering, 3 single-chip microcomputer coding circuits, 4 radio transmitters, 5BP radio pager.R ₁～R ₃₃Resistance, C ₁～C ₆Electric capacity, D ₁～D ₁₀Diode, wherein D ₇Be light-emitting diode, L ₁～L ₁₇Inductance coil, JT ₁, JT ₂Be crystal oscillator, Q ₁～Q ₁₁Transistor, IC ₁Be monolithic computer, IC ₂Be audio alert chip, IC ₃Be voltage stabilizing circuit, IC ₄, IC ₅, IC ₆Be operational amplifier, W ₁～W ₃Be semifixed resistor, ANT is an antenna, M ₁Be vibrating sensor, TT is the contact transducer, J ₁Be midget relay, Y ₁Be loud speaker, K is a mains switch.

Fig. 2～4th, the most preferred embodiment of the utility model beeper radio alarming device describes in detail below in conjunction with the course of work of accompanying drawing to the utility model beeper radio alarming device:

Fig. 2 is the utility model beeper radio alarming device circuit schematic diagram, and the alarm transmission element circuit is made of master-oscillator, modulating stage, doubler and power amplifier level, wherein: triode Q ₁With crystal oscillator JT ₁, capacitor C ₁Deng the formation capacitance connecting three point type oscillator, as the main vibration circuit of this device, its frequency of oscillation is 1/9 of a tranmitting frequency; Triode Q ₂With resistance R ₅, R ₆Deng constituting modulating stage, from monolithic computer IC ₁The POCSAG code signal be added to triode Q ₂Emitter do indirect frequency modulation, triode Q ₃, Q ₄Be the two-stage trebling circuit, finish by double tunning LC loop frequency-selecting triple-frequency harmonics; Triode Q ₅Be class A amplifier, as the triode Q that works on off state ₆, Q ₇The pre-promotion of power tube; Triode Q ₆, Q ₇Be the emission power amplifier, inter-stage is by LC loop be coupled frequency-selecting and impedance conversion effect; Inductance coil L ₁₄, L ₁₆, capacitor C ₂₈Deng formation antenna output circuit; Inductance coil L ₃, L ₉Be the inter-stage decoupling inductor, eliminate the inter-stage power supply and disturb.IC ₁Be the built-in EPROM formula of 8749H type monolithic computer, main task is the coding work of finishing with the pocsag code of beeper compatibility, and its coding frequency is 1200 bps.Crystal oscillator JT ₂, capacitor C ₃₆, C ₃₇Order sheet Computer I C ₁2., 3. pin, produce the clock signal that computer is used.Monolithic computer IC ₁34 pin are through diode D ₂Be connected to alarm trigger circuit, the computer code signal is by IC ₁27 pin are through semifixed resistor W ₁Be connected to triode Q after the adjustment ₂Emitter remove modulation transmitter, triode Q ₈, Q ₉, relay J ₁Deng formation alarm trigger circuit, wherein relay J ₁Normally opened contact J _1-1With resistance R ₂₀Cooperate and finish the triggering self-locking, TT is the contact transducer.K is a switch, IC ₃Be integrated regulator.

The audio alert chip IC ₂, triode Q ₁₀, Q ₁₁And loud speaker Y ₁Constitute voice alarm circuit,, can connect, owner does not arrive in before, can play deterrence or the prevention criminal further commits a crime with radio transmitter output terminals A among Fig. 2 when needs during at the warning onsite alarming.

Vibrating sensor M ₁, operational amplifier IC ₄, IC ₅, IC ₆Semifixed resistor W ₃Deng formation vibration detecting circuit, wherein M ₁Be vibrating sensor, semifixed resistor W ₂Adjust sensitivity, operational amplifier IC ₄Finish signal and amplify operational amplifier IC ₅For signal is differentiated, when vibration, operational amplifier IC ₅7 pin export a high level and start alarm trigger circuit action, operational amplifier IC ₆With capacitor C ₄₆Constitute the delay circuit that powers on Deng cooperation, to eliminate the false alarm that causes because of powering on.Can select for use according to different occasions.

The dynamic duty process of beeper radio alarming device of the present utility model is:

Look concrete condition, the transducer 1 of beeper radio alarming device of the present utility model is installed on protected target or scene, the user turns on the power switch K; then this warning device postponed after 30 seconds; automatically enter the state of alert, when transducer has detected alarm condition and occurs, through diode D ₃Or D ₇Trigger triode Q ₈, Q ₉Drive relay J ₁Action, relay J ₁Normally opened contact J _1-1Closure makes the warning device complete machine get electric work.Monolithic computer IC ₁After powering up,, according to the warning message of appointment, export the coding of one group of POCSAG form, through semifixed resistor W through behind a few second of delay ₁After the level match, output to triode Q ₂Emitter, when from triode Q ₁Master oscillator frequenc modulate.This modulation signal is through triode Q ₃, Q ₄After the secondary frequency multiplication, pass through again by triode Q ₅, Q ₆, Q ₇The power amplification circuit of forming amplifies, and ANT launches by antenna.After the beeper of appointment is received this radio signal, remind the user and demonstrate alarm code or character, finish warning function.Monolithic computer IC ₁Control after continuous three emission warning messages, through monolithic computer IC ₁Low level of pin output is added to circuits for triggering, makes triode Q ₈, Q ₉End relay J ₁Discharge its normally opened contact J _1-1Recover the normally open position, make coding circuit, power down such as radiating circuit quit work, and alarm trigger circuit and transducer still are on the alert, so that carry out new warning.

Claims (5)

1, a kind of radio alarming device, partly form by radio alarming radiating portion and wireless receiving, of the present utility model being characterised in that: wireless receiving partly adopts radio pager, the radio alarming radiating portion adopt tranmitting frequency and frequency coding form all with the modulating emission circuit and the alarm trigger circuit of BP radio pager compatibility.

2, according to the described radio alarming device of claim 1, it is characterized in that: described modulating emission circuit is radio transmitter (4) composition that adopts single-chip microcomputer coding circuit (3) and be attached thereto, described alarm trigger circuit is circuits for triggering (2) composition that adopts transducer (1) and be attached thereto, and the output of circuits for triggering (2) links to each other with single-chip microcomputer coding circuit (3).

3, according to the described radio alarming device of claim 2, it is characterized in that: the radio transmitter of described modulating emission circuit (4) is to adopt by triode Q ₁, crystal oscillator JT ₁Capacitor C ₁The master-oscillator of forming and be attached thereto by triode Q ₂, resistance R ₅, R ₆The Wehnelt electrode triode Q that forms ₃, Q ₄The doubler and the triode Q that form ₆, Q ₇The emission power amplifier level of forming is formed, and modulating stage mainly modulates and send into doubler by the code signal from coding circuit to master-oscillator.

4, according to claim 1,2 described radio alarming devices, it is characterized in that: set up the sound circuit that links to each other with power supply, can realize the onsite alarming function.

5, according to claim 1,2 described radio alarming devices, it is characterized in that: described transducer (1) is contact transducer or level formula transducer.

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