CN2206525Y

CN2206525Y - Emergency calling device

Info

Publication number: CN2206525Y
Application number: CN 93226451
Authority: CN
Inventors: 严贵尔
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-10-19
Filing date: 1993-10-19
Publication date: 1995-08-30
Anticipated expiration: 2003-10-19

Abstract

The utility model relates to an emergency calling device. A telephone communication network channel can be realized by using integration speech circuit and a microprocessor system controller through a butt joint device which is connected with a telephone network which comprises a phone number setting circuit which can be set by a user, a speech path discrimination circuit, a telephone communication interface and a dial circuit. When used, the utility model can make phone speech calls automatically to multiple aid points for help, and moreover, selected phone numbers and calling speech can not be lost even when the power is off. The utility model is suitable for the technical field of safety precautions of disaster prevention, theft prevention, rescue, etc.

Description

Emergency calling device

The utility model relates to calling device, particularly can utilize the distress call device of telephone network.

Along with the development of society, safety precaution is gradually paid close attention to by people, has occurred all kinds of warning devices that are used for safety precaution on the market, but their common weak points are the alarm distance weak points, has only the output of single the tinkle of bells or light mostly.To report alert to relevant department (authorities such as for example public security, fire-fighting, hospital); usually also need lean on the party to inform by calling respectively one by one; not only affect adversely the time; and, influence the timely warning under the emergency because the party generally can dial a wrong number or unconnected phrase because of the moment of desperation.

For addressing the above problem, the utility model desire to provide a kind of distance of extension alarm greatly and can one by start button, can carry out the distress call device of language calling for help to a plurality of relief points automatically.

The utility model mainly is the mechanism of docking with telephone network by being provided with, and utilizes integrated sound circuit and microprocessor controller, is that channel is realized above-mentioned purpose with the telephone communication network.Specifically, be fastened on the printing base plate of shell, starter, telephony interface and dial-up circuit, telephone path signal judging circuit, language circuit be set respectively, telephone number is provided with circuit and master controller.Above-mentioned starter is made of relay and transistor switching circuit, and above-mentioned telephony interface and dial-up circuit are by bridge rectifier directional circuit and transistor T ₃Switching circuit constitutes, and master controller (comprises IC for the chip microprocessor system of 51 series of band EPRON ₃, IC ₄And IC ₅), above-mentioned telephone path signal judging circuit is by with IC ₁It is main transport and placing device and with IC ₂Be that main audio phase locking ring circuit constitutes its IC ₁Input by a coupling capacitance C ₄Link to each other with the output of telephone interface circuit, and its signal output part is connected to IC ₃Input port, above-mentioned language circuit is by to have E ²The solid-state sound circuit of PRONR is a main sound circuit plate and with transistor T ₂Be that main switching circuit constitutes this transistor T ₂Base stage pass through resistor R ₁₁Meet IC with phase inverter ₃The control output end mouth, above-mentioned telephone number initialization circuit is by one or more groups 8 miniature slide switch K ₁～K _8N(N is the integer more than 1), address decoder IC ₆With bus switch IC ₇Form, each toggle switch is through decoding diode and address decoder IC ₆Connect the address wire of the input termination master controller of address decoder, bus switch IC ₇Be connected to the data/address bus of master controller, in addition, IC ₃A control port by phase inverter and resistor R ₁₂Transistor T with telephony interface and dial-up circuit ₃Base stage connect.

Because the utility model is by being provided with the device that docks with telephone network and introducing advanced integrated sound circuit and microprocessor, its call device as compared with the past has following substantive distinguishing features and progress: 1. can utilize telephone network to carry out language alarm automatically immediately; 2. the user can arbitrarily be provided with the telephone number and the warning language of relief point, even and outage, telephone number and warning language can not lost yet.

Fig. 1 is the circuit block diagram of the utility model one embodiment;

Fig. 2 is the electrical block diagram of Fig. 1 embodiment.

Further introduce the utility model below in conjunction with accompanying drawing for embodiment.The shell of present embodiment adopts split type up and down, and shell is provided with battery tray, and power supply of the present utility model like this can be done to exchange or DC power supply is selected, and starter adopts hand push button AN in this example ₁Make to call for help starting switch, also available certainly remote control switch substitutes, and it is more convenient that the utility model is used.Master controller adopts by IC ₃(8031 type), IC ₄(373 type), IC ₅8031 Single Chip Microcomputer (SCM) system that (2732 type) formed.When emergency takes place, click AN ₁,+5V power supply is just through AN ₁, pass through R ₁And D ₂, make T ₁The pipe conducting, this relay J winding coil energising makes its first group of J ₁The normally opened contact closure, whole rescue beacon system powers on, through R ₂The base flow that produces is kept T ₁The pipe conducting, thus self-locking produced, keep system's power supply, that is to say, even distress call disappears, do not influence system works yet.(press reset button AN ₂After cut off the electricity supply, can remove self-locking), simultaneously, second group of J of relay J ₂Normally-closed contact disconnect, cut off teleset line, the normally opened contact closure makes the utility model and telephone line L ₁, L ₂Be communicated with, then, the dialing tone in the telephone line, busy tone, ringing tone signal enter telephony interface and dial-up circuit (directional circuit and transistor T that this circuit is made of diode bridge rectifier circuit ₃The dial-up circuit that switching circuit constitutes is formed), and through C ₄Be coupled to by transport and placing device IC ₁(μ A741 type) and audio phase locking ring IC circuit ₂The telephone path signal judging circuit that (LM567 type) formed.Discharge circuit IC ₁, effect is an amplification input signal, the audio phase locking ring IC circuit ₂Effect is the IC that the input variable signal of 450HZ is become master controller ₃Discernible high and low level signal.The feature of busy-back signal is 0.35 second, and high level and 0.35 second low level replace, and dialing signal is continuous high level signal.Telephone path signal is through IC ₁Send into IC after the amplification ₂, with IC ₂The signal that internal voltage controlled oscillator produces carries out the phase bit comparison, and when frequency input signal dropped in the pullin banwidth of phase-locked loop, phase-locked loop was locked, and makes the voltage controlled oscillator frequency of oscillation consistent with frequency input signal.Output filter capacitor C ₁-C ₃Behind the filtering alternation composition, again through IC ₂Internal amplifier amplifies, by the drive circuit output low level to transistor T ₄Thereby whole speech channel judging circuit will be imported the speech channel alternation and become signal to become its envelope level signal.Again by R ₈Take out judgment signal, deliver to IC ₃(8031 type) input port P1.6 end, the operating software by 8031 determines the various signals that speech channel is sent here by surveying the level signal width.IC ₃By control output end mouth P1.1 and P1.2, control the T of dial-up circuit according to this signal respectively ₃T with the language circuit ₂The language circuit of present embodiment (has comprised power amplifier, language circuit and jumbo E by commercially available sound circuit plate in an integrated circuit ²PRON is equipped with formations such as record, playback switch and microtelephone again) and T ₂The pipe switching circuit constitutes, and the user will call for help language typing E in advance by the little microphone on the plate ²Among the PRON, during calling for help by IC ₃According to the output of telephone path signal judging circuit, control T ₂The calling for help voice through inner power amplifier are sent in the pipe conducting.The telephone number circuit of present embodiment adopts two groups 87 telephone numbers can be set, and end position K8, a K16 can be provided with telephone number figure place (for example general number is that 5～7, fire alarm number are 3) and outer wire size respectively.Above-mentioned each toggle switch is through decoding diode and address decoder IC8(4515 type) be connected bus switch IC7(224 type) be connected to the data/address bus of master controller.IC in the present embodiment ₁The control output end lamp switch of receiving a crime report, can add glazing simultaneously and reporting to the police reporting to the police with phone language, also can be again with a control end the device switch of receiving a crime report.In addition, also can directly drive warning lamp and/or alert sound device with starter.

Claims

A kind of distress call device comprises that power supply, printing base plate, starter reach by bridge rectifier directional circuit and transistor T ₃Telephony interface and dial-up circuit that switching circuit constitutes, it is characterized in that: it comprises that also master controller, telephone path signal judging circuit, language circuit and telephone number are provided with circuit; Above-mentioned master controller (comprises IC for the chip microprocessor system of 51 series of band EPRON ₃, IC ₄And IC ₅), above-mentioned telephone path signal judging circuit is by with IC ₁It is main transport and placing device and with IC ₂Be that main audio phase locking ring circuit constitutes its IC ₁Input by a coupling capacitance C ₄Link to each other with the output of circuit interface circuit, and its signal output part is connected to IC ₃Input port, above-mentioned language circuit is by to have E ²The solid-state sound circuit of PRON is a main sound circuit plate and with transistor T ₂Be that main switching circuit constitutes this transistor T ₂Base stage pass through resistor R ₁₁Meet IC with phase inverter ₃The control output end mouth, above-mentioned telephone number initialization circuit is by one or more groups 8 miniature slide switch K ₁～K _8N(N is the integer more than 1), address decoder IC ₆With bus switch IC ₇Form, each toggle switch is through decoding diode and address decoder IC ₆Connect the address wire of the input termination master controller of this address decoder, bus switch IC ₇Connect the data/address bus of master controller, in addition, IC ₃A control port by phase inverter and resistor R ₁₂Transistor T with telephony interface and dial-up circuit ₃Base stage connect.