CN2266238Y - Unattended wireless paging microcomputer coder - Google Patents

Abstract

The utility model provides an unattended wireless paging microcomputer coder which comprises a microcomputer (3), a circuit board (1) of the wireless paging microcomputer coder and a display (4) and a keyboard (5) (disclosed in attached picture 1) which are electrically connected with the circuit board (1) which is inserted in a spare socket (2) of the user of the machine. The utility model is characterized in that the circuit board (1) is the circuit board of the unattended wireless paging microcomputer coder, and a telephone interface module circuit which is formed by electric connection of a ringing testing circuit, an automatic off-hook circuit (disclosed in attached picture 2) and a trunk line interface circuit (disclosed in attached picture 3) is arranged on the board. The utility model is suitable for being used for the manual and automatic, the number and Chinese, the multi-user and the unattended wireless paging transmission and secret communication of small and medium-sizes wireless paging nets.

Description

A kind of unattended operation radio call microcomputer coding device

This practical microcomputer (microcomputer) encoder that relates to, especially a kind of unattended operation radio call microcomputer coding device, be applicable to small-sized, medium-sized wireless paging network artificial/automatically, number/Chinese compatibility, the civilian and secure communication of multi-user's unattended operation radio call.

Existing radio call microcomputer coding device mostly is electrically connected in order by trunk interface circuit, ring detecting circuit, speaking circuit, dual-tone multifrequency and pulse-recognition circuit, voice warning circuit, pocsag code transtation mission circuit, interface circuit, microcomputer, display and keyboard and forms, because its speaking circuit is not automatic take offing machine circuit but realizes radio call by artificial keystroke input user's beeper plane No. and information.Its shortcoming is that labour intensity is big, communication cost height, and it is untimely, inaccurate that information is transmitted, no user communication, confidentiality, the busy day by day needs with sharp increase of confidentiality incompatibility wireless paging communication business.

In view of there is above-mentioned shortcoming in prior art, this practical purpose provides a kind of unattended operation radio call microcomputer coding device, can not only alleviate operator's labour intensity, reduce communications cost, improve information transmission speed and accuracy, and can realize the radio call secure communication.

This practical part comprises microcomputer, is plugged on the radio call microcomputer coding device circuit board and display that is electrically connected mutually and the keyboard that comprise foregoing circuit in the standby socket of this machine user.It is characterized in that the foregoing circuit plate is a unattended operation radio call microcomputer coding device circuit board, the speaking circuit on it is an automatic take offing machine circuit, and the telephony interface modular circuit on it is electrically connected by ring detecting circuit, automatic take offing machine circuit and trunk interface circuit and forms.After the user puts through paging centers's phone, bell signal is just arranged on the trunk line, after above-mentioned ring detecting circuit detects bell signal, above-mentioned automatic take offing machine circuit is with regard to automatic off-hook, spread out of a verbal cue and " request four plane No. ", after the user has dialled plane No., press " # " key on-hook on the telephone set, a series of information are sent into above-mentioned microcomputer and are carried out autocoding, form pocsag code (international number one radio paging code) sequence, send into the transmitter emission, finish microcomputer coding automated wireless page communication one time.

Beeper plane No. and information that the utility model is pulled over to the user can be inquired about by above-mentioned keyboard and display, retrieve, show, in time management, output signal.In case of necessity, can carry out artificial wireless paging communication with keyboard.

The technique scheme that this is practical, have significant technological progress and positive practical function, not only can round-the-clock unattended operation wireless paging communication, artificial paging is time saving and energy saving, and paging transmits soon, accuracy is high, also is applicable to the secret page communication of departments such as public security, military affairs.

Below with reference to the accompanying drawings, will further specify the utility model.

Fig. 1 is the utility model design frame chart (prior art).

Fig. 2 is the utility model complete machine structure schematic perspective view and specification digest accompanying drawing.

Fig. 3 is the ring detection and the automatic take offing machine circuit figure of the telephony interface modular circuit on Fig. 1 radio call microcomputer coding device circuit board (1).

Fig. 4 is the trunk interface circuit diagram of the telephony interface modular circuit on the plate among Fig. 1 (1).

With reference to Fig. 1, part of the present utility model as can be known comprises microcomputer (3), be plugged on and comprise the trunk interface circuit in the standby socket of this machine user (2), ring detecting circuit, speaking circuit, dual-tone multifrequency and pulse-recognition circuit, voice warning circuit, the pocsag code transtation mission circuit, the radio call microcomputer coding device circuit board (1) of interface circuit (Fig. 1) and the display (4) that is electrically connected mutually thereof and keyboard (5), feature is that circuit board (1) is a unattended operation radio call microcomputer coding device circuit board altogether, the speaking circuit of the telephony interface modular circuit on it is automatic take offing machine circuit (Fig. 3 left part), and trunk interface circuit on it and ring detecting circuit are shown in Fig. 4 and Fig. 3 right part.

With reference to Fig. 3 left part, above-mentioned as can be known automatic take offing machine circuit is by a relay K, a termination crystal diode D ₁Positive pole and transistor pipe collector, another termination D ₁Negative pole also passes through resistance R ₂Meet power supply+5V, K ₁Contact A connects phone contact B of paging centers and resistance R ₃One end, U ₁Grounded emitter, base stage connecting resistance R ₁One end, another termination microcomputer (3) output data bus is formed.

With reference to Fig. 3 right part, above-mentioned as can be known ring detecting circuit is by a photoelectrical coupler IC U ₂The 1st pin meets crystal diode D ₂Negative pole also passes through capacitor C ₁Connecting resistance R ₃One end, U ₂The 2nd pin meets D ₂Positive pole and the phone contact C of paging centers; U ₂The 4th pin meets transistor U ₄Base stage; Grounded emitter, collector electrode connecting resistance R ₅One end, tantalum capacitor C ₂Positive pole and not circuit U ₆The 1st pin, and the 2nd pin connects microcomputer (3) input bus, U ₂The 5th pin and resistance R ₅Be connected to resistance R between the other end ₄With power supply+5V, U ₂Be connected to resistance R between the 6th pin and the ground ₆With the tantalum capacitor C ₂Negative pole and constituting.

With reference to Fig. 4, above-mentioned trunk interface circuit is by a DC-DC DC-DC converter IC U ₃The 1st pin ground connection, the 2nd pin meets power supply+5V, the 3rd pin-12V connects the tantalum capacitor C ₄Negative pole, capacitor C ₆One end and resistance R ₈One end, resistance R ₈Another termination photoelectrical coupler ICU ₅The 2nd pin, U ₃The 4th pin GMD connects the tantalum capacitor C ₄Anodal, tantalum capacitor C ₃Negative pole and capacitor C ₆, C ₅One end, the 5th pin+12V connects the tantalum capacitor C ₃Anodal, capacitor C ₅The other end and tantalum capacitor C ₇Positive pole and phone contact B, capacitor C ₇Negative pole meets U ₅The 1st pin and phone contact C, U ₅The 4th pin E ground connection, the 5th pin IN-C connecting resistance R ₇, power supply+5V and not circuit U ₇The 3rd pin, the 7th pin meet microcomputer (3) interface unit data address bus DA7; The unsettled composition of the 6th pin.

After the utility model inserts wireless paging network, after paging centers's phone contact B, C are put through in its circuit, on the circuit (Fig. 4) bell signal is just arranged, through U ₇The output of the 7th pin is sent into microcomputer (3) CPU and the resistance R through linking to each other with B, C point by the data address bus DA7 that connects the 7th pin ₃Capacitor C ₁, crystal diode DZ and U ₂The 1 2nd pin is sent into above-mentioned ring detecting circuit, by U ₂The 4th pin go out, be added to U ₄On the base stage, through U ₄, U ₆,, send into microcomputer (3) CPU by microcomputer (3) input bus that joins with it from its 2nd pin output; By connecting resistance R ₁The microcomputer of one end (3) output data bus is sent a high level signal; K in the control automatic take offing machine circuit ₁Adhesive realizes automatic off-hook, the unattended operation radio call.

Main member model parameter among this practical letter type circuit diagram 2 and Fig. 3 is as follows:

U ₁, U ₃, U ₄Optional; U ₂, U ₅Can select model 4N26,4N27,4N28 for use; U ₆With U ₇Optional; Resistance R ₁Be 4-6K, R ₂Be 42, R ₃Be 6-7K, R ₄Be 9-12K, R ₅Be 9-12K, R ₆Be 200-800K; Capacitor C ₁Be 0.1, C ₅Be 0.1, C ₆Be 0.1, the tantalum capacitor C ₂Be 200-250, C ₃Be 200-250, C ₄Be 200-250, C ₇Be 20-25; D ₁, D ₂Optional.

Claims (4)

1, a kind of unattended operation radio call microcomputer coding device, display (4) and keyboard (5) that its part comprises microcomputer (3), is plugged on the radio call microcomputer coding device circuit board (1) that comprises trunk interface circuit, ring detecting circuit, speaking circuit, dual-tone multifrequency and pulse-recognition circuit, voice warning circuit, POCSAG sheet sign indicating number transtation mission circuit, interface circuit in the standby socket of this machine user (2) and is electrically connected mutually is characterized in that circuit board (1) is a unattended operation radio call microcomputer coding device circuit board.

2, according to the encoder of claim 1 regulation, it is characterized in that the speaking circuit on the plate (1) is an automatic take offing machine circuit, by a relay K ₁One termination crystal diode D ₁Positive pole and transistor U ₁Collector electrode, another termination D ₁Negative pole also passes through resistance R ₂Meet power supply+5V, K ₁Contact A connects phone contact B of paging centers and resistance R ₃One end, U ₁Grounded emitter, base stage connecting resistance R ₁One end, another termination microcomputer (3) output data bus is formed.

3, according to the encoder of claim 1 regulation, it is characterized in that the ringing circuit on the plate (1), by a photoelectrical coupler ICU ₂The 1st pin meets crystal diode D ₂Negative pole also passes through capacitor C ₁Connecting resistance R ₃One end, U ₂The 2nd pin meets D ₂Positive pole and the phone contact C of paging centers, U ₂The 4th pin meets transistor U ₄Base stage, grounded emitter, collector electrode connecting resistance R ₅One end, tantalum capacitor C ₂Positive pole and not circuit U ₆The 1st pin, and the 2nd pin connects microcomputer (3) input bus, U ₂The 5th pin and resistance R ₅Be connected to resistance R between the other end ₄With power supply+5V, U ₂Be connected to resistance R between the 6th pin and the ground ₆With the tantalum capacitor C ₂Negative pole and constituting.

4, according to the encoder of claim 1 regulation, it is characterized in that the trunk interface circuit on the plate (1), by a DC-DC DC-DC converter IC U ₃The 1st pin ground connection, the 2nd pin meets power supply+5V, the 3rd pin-12V connects the tantalum capacitor C ₄Negative pole, capacitor C ₆One end and resistance R ₃One end, resistance R ₈Another termination photoelectrical coupler IC U ₅The 2nd pin, U ₃The 4th pin GND connects the tantalum capacitor C ₄Anodal, tantalum capacitor C ₃Negative pole and electric capacity one end, the 5th pin+12V connects the tantalum capacitor C ₃Anodal, capacitor C ₅The other end and tantalum capacitor C ₇Positive pole and phone contact B, capacitor C ₇Negative pole U ₅The 1st pin and phone contact C, U ₅The 4th pin E ground connection, the 5th pin IN-C connecting resistance R ₇, power supply+5V and not circuit U ₇The 3rd pin, the 7th pin connect microcomputer (3) interface unit data address bus DA7, the unsettled composition of the 6th pin.