CN2253850Y - Outdoor wireless speech sound theft-proof alarm device - Google Patents

Abstract

The utility model discloses an alarm transmitting apparatus, which can cooperate with an attended receiving station of a company. The utility model is composed of a warning probe T, and a monitoring emitter which is electrically connected with the warning probe T, wherein, the monitoring emitter is provided with a speech alarm mechanism; the warning probe T is a long single-core shielded wire whose terminal is provided with resistance RT; the monitoring emitter is composed of a probe control circuit 1, a power supply circuit 3, a timing circuit 2, a power converting control switch 4, a modulating emitting circuit 5, and a speech storing alarm circuit which are electrically connected with the warning probe T. The utility model can rapidly, simply, and reliably emit speech alarm signals to the attended departments in the field when the apparatus and goods are stolen.

Description

Outdoor wireless speech burglar alarm

The utility model belongs to electronic technology field, relates to a kind of electronic alarm device, particularly a kind ofly is used to prevent field work place goods and materials and the robbed or burgled electronic monitoring burglar alarm of equipment.

Departments of enterprises and institutions such as oil field, mine and electric power, telecommunication bring very big loss for production of units and even people's lives because big, the open-air distribution of place area coverage working point is many, and the stolen case of its equipment and goods and materials happens occasionally.How preventing field work place equipment and the robbed or burgled phenomenon of goods and materials effectively, is to make the supvr of relevant department and the producer endure nerve-racking problem for a long time all the time.The existing device that is used for open-air burglar alarm mainly contains and adopts acousto-optic detection alarm device two big classes line traffic control is arranged or imitate the electronic monitoring burglar alarm of word code formula controlled in wireless and adopt infrared, laser, microwave etc.In the electrical type monitoring alarm device, there is line traffic control to report to the police as employing, then command range can not be too far away; And, easily produce wrong report again if adopt the controlled in wireless mode of each extension set with the numerical coding difference.The structure that acousto-optic is surveyed the class warning device is more complicated and be vulnerable to the influence of Changes in weather situation mostly, and one runs into overcast and rainy foggy weather all will shorten detection range greatly; In addition; the acousto-optic sniffer also has the not strong defective of logic judging function; no matter be, so often cause also that the duty personnel's of unit is tired out and slack in the use to the person of having an ulterior motive that enters the protected location or to the mistake incomer even to unconscious incomers such as livestock all " making no exception ".

The purpose of this utility model is to overcome the existing defective of existing outdoor anti-theft technology, and then a kind of rational in infrastructure, easy to operate, monitoring distance is provided, is not subjected to the synoptic climate situation to influence, does not have wrong report also can to quote the outdoor wireless speech burglar alarm in incidence of criminal offenses place directly and accurately to department on duty of unit.

Be used to realize that the technical solution of foregoing invention purpose is such: this outdoor wireless speech burglar alarm is an alarm transmission device that can be used with department on duty of unit receiving platform (CSRC main frame), its structure is referring to Fig. 1, and it is popped one's head in by a secondary warning probe T and one one and warning, and T electrically connects and monitoring emitter with audio alert mechanism is formed.Warning probe T is one and longly is provided with resistance R for several meters to tens of rice and its terminal _TLong single-core shielding line; Monitoring emitter is by the probe control circuit 1 that electrically connects with warning probe T, power circuit 3, timing circuit 2, power supply switching controls switch 4, modulation transmitter 5 and voice storage warning circuit 6 constitute, probe control circuit 1 and timing circuit 2 are got by power circuit 3, the output signal of the two is added in the triggering input end of modulation transmitter 5 and the triggering input end of voice storage warning circuit 6 simultaneously together with the working signal of power circuit 3 behind power change-over switch 4, the output terminal of voice storage warning circuit 6 leads to the speech trigger end of modulation transmitter 5, and storage in advance has the speech data information in report monitoring place in voice storage warning circuit 6.In the use; single-core shielding line is worn the position of difficult disengagements such as the hole of walking around item to be protected (being antitheft article), ring and prick around or be coiled in around the item to be protected; in case when the burglar breaks single-core shielding line or make shielding line heart yearn and outer short circuit even cut off external power for stealing equipment or goods and materials, all will change shielding line terminal resistance R _TFor the probe control circuit 1 resistance and make this circuit working, its working signal soon triggers voice storage warning circuit 6 and modulation transmitter 5 work again, with audio language seek help alerting signal by emitting antenna fast, simply, the CSRC main frame of the unit's of being sent to duty room reliably, religion makes relevant duty personnel in time rush towards the site of the accident and handles it.

In actual applications, the effect of burglar alarm described in the utility model is equivalent to a small-sized emission extension set of being located at concrete warning point surely, connect the outdoor wireless speech guard against theft and alarm system (net) that same central host supervising device just can be formed the general regional centralized management of a cover by many such emission extension sets, use main frame of system can monitor many extension sets simultaneously, every extension set all can directly be quoted the address at its place to main frame with voice, like this can guarantor unit's ordinary production and people's lives unaffected.

Below with reference to accompanying drawing the utility model content is described further.

Fig. 1 is principle (frame) figure of device described in the utility model.

Fig. 2 is principle (frame) figure of a specific embodiment of the utility model.

Fig. 3 is the practical circuit diagram that is used to finish Fig. 2 embodiment function.

In embodiment block diagram shown in Figure 2, monitoring emitter internal power circuit 3 is made of power-supplying circuit 31 and rechargeable battery circuit 32, the operating voltage output of power-supplying circuit 31 is added in the input end of probe control circuit 1 and rechargeable battery circuit 32 simultaneously, and the output terminal of rechargeable battery circuit 32 is connected on the contact of power change-over switch 4; Voice storage warning circuit 6 is made of voice storage circuit 62, recording playback control circuit 61 and microphone recording circuit 63 in the monitoring emitter, be added in the input end of recording playback control circuit 61 and voice storage circuit 62 simultaneously from the working signal of power change-over switch 4, the output terminal of the output terminal of recording playback control circuit 61 and microphone recording circuit 63 is added in respectively on the recording playback control input end and recording input end of voice storage circuit 62.

Figure 3 shows that the practical circuit diagram of Fig. 2 structure, annexation of electric device is as described below in it.Warning probe T is that a length of establishing around monitored thing is several meters to tens of meters single-core shielding line, and the terminal of shielding line is established a resistance R _T, it is set in the hidden magazine, also is provided with warning self-test switch K in addition on warning probe T ₁Probe control circuit 1 in the monitoring emitter is by resistance R ₅～R ₇, relay J ₁, two inputs, four Sheffer stroke gate CD4011 (among Fig. 3 decompose it by gate circuit F ₁～F ₄Represent) and triode BG ₃Constitute interior middle resistance R ₅, R ₆With warning probe resistance R _TForm bleeder circuit, its R ₅The two ends dividing point links with two trigger ends of CD4011 respectively, and the output terminal of CD4011 is through resistance R ₇Be connected to triode BG ₃Base stage, triode BG ₃Output relay termination J ₁Trigger end, J ₁Control termination power change-over switch 4.Power circuit 3 is by source of stable pressure 7812, triode BG ₁, BG ₂, rechargeable battery set E, diode D ₂, D ₃Form, wherein by triode BG ₁And BG ₂The coupled switch of forming is together with diode D ₃, electric battery E constitutes rechargeable battery circuit 32, the input termination positive source of coupled switch, output terminal is through diode D ₃Be connected on the contact of electric battery E positive pole and power change-over switch 4, source of stable pressure 7812 output terminals are through diode D ₂Be connected on another contact of power change-over switch 4.Diode D ₂, D ₃Effect be when preventing outside power cut-off, electric battery E back discharge.The effect of timing circuit 2 is to have a power failure and the rechargeable battery pack E that migrates when reporting to the police when external power, and the electric battery time of fire alarming prescribe a time limit (general be several minutes to tens of minutes in limited time, in case the interior energy storage of electric battery E exhausts), and it is by NE555 time base circuit IC ₁, triode BG ₄, relay J ₂, resistance R ₈, R ₉, R ₁₀And capacitor C ₄Constitute interior middle R ₉, R ₁₀, C ₄And IC ₁Form a timer, its output terminal is through resistance R ₈Insert triode BG ₄Base stage, BG ₄Output relay termination J ₂Trigger end, J ₂Control termination power change-over switch 4.Power change-over switch 4 is by relay J ₁And J ₂Contact switch J _1-1And J _2-1Constitute interior middle J _2-1Be the changeover contact switch, its movable contact a and normally closed contact b are located at source of stable pressure 7812 to the path of probe control circuit 1, and normal opened contact c then is located at power circuit 3 to the path of voice storage warning circuit 6 and modulation transmitter 5; J _1-1Be the normal opened contact switch, it is located at power circuit 3 to the path of voice storage warning circuit 6 and modulation transmitter 5.Voice storage warning circuit 6 is by ISD-1400 speech recording and reproducing integrated circuit (IC) ₂, NE555 time base circuit IC ₃, capacitor C ₁₁, C ₁₂, C ₁₃, C ₁₅, resistance R ₁₅, R ₁₇, R ₁₉, R ₂₀, K switch ₂Constitute interior middle R with microphone MIC ₁₉, R ₂₀, C ₁₅And IC ₃Form the device that regularly sets out, its output terminal enters IC ₂The speech recording and reproducing input end, IC ₂Forming circuit 6 voice storage circuit 62, its output terminal is through C ₁₃And R ₁₇Insert modulation transmitter 5, microphone MIC passes through capacitor C ₁₁And C ₁₂Insert IC ₂The recording input end, resistance R ₁₄And K switch ₂Be serially connected in the recording playback control circuit 61 that constitutes warning circuit 6 between positive source and the circuit place, IC is inserted at the reference mark between the two ₂The control input end.Except that above-mentioned syndeton, K switch among Fig. 3 ₃Form IC with loudspeaker SP ₂The recording self-checking circuit; Triode BG ₅, light emitting diode D ₁₂And resistance R ₁₆, R ₁₈Constitute IC ₂The recording playback indicating circuit, the modulation transmitter 5 in the device adopts commercially available TZFS family device, it carries out frequency modulation, amplification with the speech signal of audio frequency, delivers to antenna and launches.When device described in the utility model is installed, device body can be suspended on the upper end of objects such as electric pole in the open air, antenna can be fixed on the head of the mast, and the device next door should dispose 220 volts of AC power, for the usefulness of battery charge.

The course of work of Fig. 3 circuit is such:

In probe control circuit 1, resistance R ₅, R ₆With warning probe terminal resistance R _TThe bleeder circuit of forming makes R ₅Two ends are respectively the noble potential and the electronegative potential of logic level, under normal monitor state, and R ₇Left end is a low level, BG ₃End relay J ₁Not adhesive.In case the burglar breaks single-core shielding line or shielding line heart yearn and skin are shortened the road, all will change R _TResistance for interface T.Because the input impedance of CMOS integrated circuit CD4011 is very high, admittedly the sensitivity of the T that pops one's head in is just very high, resistance R _TVariation will cause R ₅The variation of two ends logic level makes its two ends or is low level (due to opening circuit) or is high level (due to the short circuit).R no matter ₅Two ends are high level or are low level, all will make CD4011 output high level, thereby make BG ₃Saturation conduction, J ₁Adhesive makes each operate portions of voice storage warning circuit 6 and modulation transmitter 5 get electricity, trigger to report to the police so that relevant duty personnel can immediately be on the scene handles it.When taking place as burglar at a time when have a power failure or the burglar cuts off external power V _D, R then _TResistance become and to make relay J ₁Adhesive, each operate portions is got electricity, NE555 integrated circuit (IC) in the timing circuit 2 ₁Get the electric high level of at first exporting, triode BG ₄Saturation conduction makes DC relay J ₂Adhesive triggers and reports to the police.J ₂Be the control assembly of power change-over switch 4, it finishes battery-powered and power supply self protective function when reporting to the police.Even J in the work ₁Adhesive is once just decontroled at once, because J ₂Adhesive, device just still can be finished the warning of one-period, and the length in this cycle is by resistance R ₉And capacitor C ₄Numerical value decide, generally be controlled at several minutes to tens of minutes, can receive reliably with the monitoring host computer that guarantees to be located in the duty room.After the time that limits arrives, by the principle of work of 555 integrated circuit as can be known, IC ₁Output transfer low level to, through resistance R ₈Control three plate pipe BG ₄End, so J ₂Outage discharges, and each working portion (except that the probe control section) outage is reported to the police thereby finished once.

The course of work of voice storage warning circuit 6 is as described below among Fig. 3.

K switch ₂And resistance R ₁₅The recording playback control circuit 61 of built-up circuit 6, K ₂When closed, IC ₂Be in recording state, K ₂In the time of separately, IC ₂Be in tone playing state.When to IC ₂When doing the recording storage, press self-test switch K ₁, promptly Analogue probe is reported to the police, then J ₁Closed, J ₂Self-insurance, IC ₂And IC ₃Must establish beginning work by cable, work as IC ₃Output when transferring low level to by high level, promptly negative edge triggers IC ₂Begin recording, face toward the content that microphone MIC tells the site and the orientation of this extension set this moment, and then these language will be stored in IC ₂In, (this time length is by IC after a period of time ₂Model and specification and decide), IC ₂Be filled with, with K ₁And K ₂Disconnect, make IC ₂Be in tone playing state; During playback, press K ₁, IC ₂And IC ₃Electric, through after a while (by R ₁₉And C ₁₅Decision) IC ₃Output negative edge signal, IC ₂The beginning playback is if pin recording self check button K this moment always ₃, then from loudspeaker SP, can hear to be stored in IC ₂In voice signal.Change IC as need ₂Interior content of being stored only needs operate again one time by foregoing Recording Process, so can be with old content flush away and with the fresh content typing.IC ₂The speech signal of emitting is after C ₁₃And R ₁₇Transport to modulation transmitter 5.

Outdoor wireless speech sound theft-proof alarm device described in the utility model be a kind of collection short-circuit alarming, Breaking alarming and language are transmitted as the high-tech electronic product of one, and it has highly sensitive, behaviour Make the characteristics such as convenient, reliable, that transmitting power is big, transmitting range is far away, can be widely used in industrial and mineral Enterprises and institutions particularly the unit such as oil field, mine to the safety precaution of its open-air significant points, Solved the technical barrier that for a long time field equipment and goods and materials are difficult to guard, opened up open-air anti-The frontier of robber's technology.

Claims (3)

1, a kind ofly be used to prevent field equipment and the stolen outdoor wireless speech burglar alarm of goods and materials, electrically connect by warning probe (T) with warning probe (T) and monitoring emitter with audio alert mechanism is formed, it is characterized in that:

1.1 warning probe (T) is that a root termination is provided with resistance R _TLong single-core shielding line;

1.2 monitoring emitter is by the probe control circuit (1) that electrically connects with warning probe (T), power circuit (3), timing circuit (2), power supply switching controls switch (4), modulation transmitter (5) and voice storage warning circuit (6) constitute, probe control circuit (1) and timing circuit (2) are got by power circuit (3), the output signal of the two is added in the triggering input end of modulation transmitter (5) and the triggering input end of voice storage warning circuit (6) simultaneously together with the working signal of power circuit (3) behind power change-over switch (4), the output terminal of voice storage warning circuit (6) leads to the speech trigger end of modulation transmitter (5).

2, burglar alarm as claimed in claim 1, it is characterized in that monitoring emitter internal power circuit (3) is made of power-supplying circuit (31) and rechargeable battery circuit (32), the operating voltage output of power-supplying circuit (31) is added in the input end of probe control circuit (1) and rechargeable battery circuit (32) simultaneously, and the output terminal of rechargeable battery circuit (32) is connected on the contact of power change-over switch (4).

3, burglar alarm as claimed in claim 1, it is characterized in that voice storage warning circuit (6) is made of voice storage circuit (62), recording playback control circuit (61) and microphone recording circuit (63) in the monitoring emitter, be added in the input end of recording playback control circuit (61) and voice storage circuit (62) simultaneously from the working signal of power change-over switch (4), the output terminal of the output terminal of recording playback control circuit (61) and microphone recording circuit (63) is added in respectively on the recording playback control input end and recording input end of voice storage circuit (62).

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